diff options
author | Eric Andersen <andersen@codepoet.org> | 2001-03-17 01:47:14 +0300 |
---|---|---|
committer | Eric Andersen <andersen@codepoet.org> | 2001-03-17 01:47:14 +0300 |
commit | aad1a88c76f208d188fd061e3723bd637437e8d5 (patch) | |
tree | 75ac2b994f7f04af776e93eeedba82b873ff557e | |
parent | dfba13d199bb58d802df99c1ef20fdc0d628e86d (diff) |
Convert utility.c into libbb.a. It is now a whole pile of .c
files. Clean up the resulting damage and fix up the makefile.
-Erik
47 files changed, 3901 insertions, 2254 deletions
@@ -200,7 +200,7 @@ endif # And option 4: -include applet_source_list -OBJECTS = $(APPLET_SOURCES:.c=.o) busybox.o messages.o usage.o utility.o +OBJECTS = $(APPLET_SOURCES:.c=.o) busybox.o messages.o usage.o applets.o mtab_file.o CFLAGS += $(CROSS_CFLAGS) CFLAGS += -DBB_VER='"$(VERSION)"' CFLAGS += -DBB_BT='"$(BUILDTIME)"' @@ -220,6 +220,21 @@ ifneq ($(strip $(USE_SYSTEM_PWD_GRP)),true) else CFLAGS += -DUSE_SYSTEM_PWD_GRP endif + +LIBBB = libbb +LIBBB_DIR = $(BB_SRC_DIR:=/)$(LIBBB) +LIBBB_LIB = libbb.a +LIBBB_CSRC= ask_confirmation.c check_wildcard_match.c chomp.c copy_file.c \ +copy_file_chunk.c create_path.c device_open.c error_msg.c \ +find_mount_point.c find_pid_by_name.c find_root_device.c full_read.c \ +full_write.c get_console.c get_last_path_component.c get_line_from_file.c \ +human_readable.c inode_hash.c isdirectory.c kernel_version.c loop.c \ +mode_string.c parse_mode.c parse_number.c print_file.c process_escape_sequence.c \ +pwd_grp_wrappers.c recursive_action.c safe_read.c safe_strncpy.c syscalls.c \ +syslog_msg_with_name.c time_string.c trim.c vdprintf.c wfopen.c xfuncs.c \ +xregcomp.c +LIBBB_OBJS=$(patsubst %.c,$(LIBBB)/%.o, $(LIBBB_CSRC)) +LIBBB_CFLAGS = -I$(LIBBB_DIR) # Put user-supplied flags at the end, where they # have a chance of winning. @@ -288,8 +303,8 @@ docs/busybox/busyboxdocumentation.html: docs/busybox.sgml (cd docs/busybox.lineo.com; sgmltools -b html ../busybox.sgml) -busybox: $(PWD_LIB) $(OBJECTS) - $(CC) $(LDFLAGS) -o $@ $(OBJECTS) $(LIBRARIES) $(PWD_LIB) +busybox: $(PWD_LIB) $(LIBBB_LIB) $(OBJECTS) + $(CC) $(LDFLAGS) -o $@ $(OBJECTS) $(LIBRARIES) $(PWD_LIB) $(LIBBB_LIB) $(STRIP) # Without VPATH, rule expands to "/bin/sh busybox.mkll Config.h applets.h" @@ -307,14 +322,21 @@ $(PWD_OBJS): %.o: %.c Config.h busybox.h applets.h Makefile - mkdir -p $(PWD_GRP) $(CC) $(CFLAGS) $(PWD_CFLAGS) -c $< -o $*.o +$(LIBBB_OBJS): %.o: %.c Config.h busybox.h applets.h Makefile + - mkdir -p $(LIBBB) + $(CC) $(CFLAGS) $(LIBBB_CFLAGS) -c $< -o $*.o + libpwd.a: $(PWD_OBJS) $(AR) $(ARFLAGS) $@ $^ +libbb.a: $(LIBBB_OBJS) + $(AR) $(ARFLAGS) $@ $^ + usage.o: usage.h -utility.o: loop.h +libbb/loop.o: libbb/loop.h -loop.h: mk_loop_h.sh +libbb/loop.h: mk_loop_h.sh @ $(SHELL) $< > $@ test tests: @@ -330,8 +352,8 @@ clean: - rm -f docs/busybox.txt docs/busybox.dvi docs/busybox.ps \ docs/busybox.pdf docs/busybox.lineo.com/busybox.html - rm -f multibuild.log Config.h.orig - - rm -rf docs/busybox _install libpwd.a - - rm -f busybox.links loop.h *~ slist.mk core applet_source_list + - rm -rf docs/busybox _install libpwd.a libbb.a + - rm -f busybox.links libbb/loop.h *~ slist.mk core applet_source_list - find -name \*.o -exec rm -f {} \; distclean: clean diff --git a/applets.c b/applets.c new file mode 100644 index 000000000..1e31e8925 --- /dev/null +++ b/applets.c @@ -0,0 +1,92 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include "busybox.h" + +#define bb_need_full_version +#define BB_DECLARE_EXTERN +#include "messages.c" + +struct BB_applet *applet_using; + +extern void show_usage(void) +{ + const char *format_string; + const char *usage_string = usage_messages; + int i; + + for (i = applet_using - applets; i > 0; ) { + if (!*usage_string++) { + --i; + } + } + format_string = "%s\n\nUsage: %s %s\n\n"; + if(*usage_string == 0) + format_string = "%s\n\nNo help available.\n\n"; + fprintf(stderr, format_string, + full_version, applet_using->name, usage_string); + exit(EXIT_FAILURE); +} + +static int applet_name_compare(const void *x, const void *y) +{ + const char *name = x; + const struct BB_applet *applet = y; + + return strcmp(name, applet->name); +} + +extern size_t NUM_APPLETS; + +struct BB_applet *find_applet_by_name(const char *name) +{ + return bsearch(name, applets, NUM_APPLETS, sizeof(struct BB_applet), + applet_name_compare); +} + +void run_applet_by_name(const char *name, int argc, char **argv) +{ + /* Do a binary search to find the applet entry given the name. */ + if ((applet_using = find_applet_by_name(name)) != NULL) { + applet_name = applet_using->name; + if (argv[1] && strcmp(argv[1], "--help") == 0) + show_usage(); + exit((*(applet_using->main)) (argc, argv)); + } +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/applets/applets.c b/applets/applets.c new file mode 100644 index 000000000..1e31e8925 --- /dev/null +++ b/applets/applets.c @@ -0,0 +1,92 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include "busybox.h" + +#define bb_need_full_version +#define BB_DECLARE_EXTERN +#include "messages.c" + +struct BB_applet *applet_using; + +extern void show_usage(void) +{ + const char *format_string; + const char *usage_string = usage_messages; + int i; + + for (i = applet_using - applets; i > 0; ) { + if (!*usage_string++) { + --i; + } + } + format_string = "%s\n\nUsage: %s %s\n\n"; + if(*usage_string == 0) + format_string = "%s\n\nNo help available.\n\n"; + fprintf(stderr, format_string, + full_version, applet_using->name, usage_string); + exit(EXIT_FAILURE); +} + +static int applet_name_compare(const void *x, const void *y) +{ + const char *name = x; + const struct BB_applet *applet = y; + + return strcmp(name, applet->name); +} + +extern size_t NUM_APPLETS; + +struct BB_applet *find_applet_by_name(const char *name) +{ + return bsearch(name, applets, NUM_APPLETS, sizeof(struct BB_applet), + applet_name_compare); +} + +void run_applet_by_name(const char *name, int argc, char **argv) +{ + /* Do a binary search to find the applet entry given the name. */ + if ((applet_using = find_applet_by_name(name)) != NULL) { + applet_name = applet_using->name; + if (argv[1] && strcmp(argv[1], "--help") == 0) + show_usage(); + exit((*(applet_using->main)) (argc, argv)); + } +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ @@ -44,31 +44,6 @@ typedef unsigned int socklen_t; #endif -/* Some useful definitions */ -#define FALSE ((int) 0) -#define TRUE ((int) 1) -#define SKIP ((int) 2) - -/* for mtab.c */ -#define MTAB_GETMOUNTPT '1' -#define MTAB_GETDEVICE '2' - -#define BUF_SIZE 8192 -#define EXPAND_ALLOC 1024 - -static inline int is_decimal(ch) { return ((ch >= '0') && (ch <= '9')); } -static inline int is_octal(ch) { return ((ch >= '0') && (ch <= '7')); } - -/* Macros for min/max. */ -#ifndef MIN -#define MIN(a,b) (((a)<(b))?(a):(b)) -#endif - -#ifndef MAX -#define MAX(a,b) (((a)>(b))?(a):(b)) -#endif - - enum Location { _BB_DIR_ROOT = 0, _BB_DIR_BIN, @@ -97,146 +72,14 @@ extern const struct BB_applet applets[]; extern const char *applet_name; -extern void show_usage(void) __attribute__ ((noreturn)); -extern void error_msg(const char *s, ...); -extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn)); -extern void perror_msg(const char *s, ...); -extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn)); - -const char *mode_string(int mode); -const char *time_string(time_t timeVal); -int is_directory(const char *name, const int followLinks, struct stat *statBuf); -int isDevice(const char *name); - -typedef struct ino_dev_hash_bucket_struct { - struct ino_dev_hash_bucket_struct *next; - ino_t ino; - dev_t dev; - char name[1]; -} ino_dev_hashtable_bucket_t; -int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name); -void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name); -void reset_ino_dev_hashtable(void); - -int copy_file(const char *srcName, const char *destName, - int setModes, int followLinks, int forceFlag); -int copy_file_chunk(int srcFd, int dstFd, size_t remaining); -char *buildName(const char *dirName, const char *fileName); -int makeString(int argc, const char **argv, char *buf, int bufLen); -char *getChunk(int size); -char *chunkstrdup(const char *str); -void freeChunks(void); -ssize_t safe_read(int fd, void *buf, size_t count); -int full_write(int fd, const char *buf, int len); -int full_read(int fd, char *buf, int len); -int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst, - int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData), - int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData), - void* userData); - -extern int create_path (const char *name, int mode); -extern int parse_mode( const char* s, mode_t* theMode); - -extern int get_kernel_revision(void); - -extern int get_console_fd(char* tty_name); -extern struct mntent *find_mount_point(const char *name, const char *table); -extern void write_mtab(char* blockDevice, char* directory, - char* filesystemType, long flags, char* string_flags); -extern void erase_mtab(const char * name); -extern void mtab_read(void); -extern char *mtab_first(void **iter); -extern char *mtab_next(void **iter); -extern char *mtab_getinfo(const char *match, const char which); -extern int check_wildcard_match(const char* text, const char* pattern); -extern long atoi_w_units (const char *cp); -extern pid_t* find_pid_by_name( char* pidName); -extern int find_real_root_device_name(char* name); -extern char *get_line_from_file(FILE *file); -extern void print_file(FILE *file); -extern int print_file_by_name(char *filename); -extern char process_escape_sequence(char **ptr); -extern char *get_last_path_component(char *path); -extern FILE *wfopen(const char *path, const char *mode); -extern FILE *xfopen(const char *path, const char *mode); -extern void chomp(char *s); -extern void trim(char *s); -extern struct BB_applet *find_applet_by_name(const char *name); -void run_applet_by_name(const char *name, int argc, char **argv); - -#ifndef DMALLOC -extern void *xmalloc (size_t size); -extern void *xrealloc(void *old, size_t size); -extern void *xcalloc(size_t nmemb, size_t size); -extern char *xstrdup (const char *s); -#endif -extern char *xstrndup (const char *s, int n); -extern char * safe_strncpy(char *dst, const char *src, size_t size); - -struct suffix_mult { - char *suffix; - int mult; -}; - -extern unsigned long parse_number(const char *numstr, - const struct suffix_mult *suffixes); - - -/* These parse entries in /etc/passwd and /etc/group. This is desirable - * for BusyBox since we want to avoid using the glibc NSS stuff, which - * increases target size and is often not needed embedded systems. */ -extern long my_getpwnam(const char *name); -extern long my_getgrnam(const char *name); -extern void my_getpwuid(char *name, long uid); -extern void my_getgrgid(char *group, long gid); -extern long my_getpwnamegid(const char *name); - -extern int device_open(char *device, int mode); - -#if defined BB_FEATURE_MOUNT_LOOP -extern int del_loop(const char *device); -extern int set_loop(const char *device, const char *file, int offset, int *loopro); -extern char *find_unused_loop_device (void); -#endif - - -#if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT) -extern int vdprintf(int d, const char *format, va_list ap); -#endif - -#if defined BB_NFSMOUNT -int nfsmount(const char *spec, const char *node, int *flags, - char **extra_opts, char **mount_opts, int running_bg); -#endif - -#ifndef RB_POWER_OFF -/* Stop system and switch power off if possible. */ -#define RB_POWER_OFF 0x4321fedc -#endif - -#if defined(BB_KLOGD) || defined(BB_LOGGER) -void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg); -void syslog_msg(int facility, int pri, const char *msg); +#ifdef BB_FEATURE_BUFFERS_GO_ON_STACK +#define RESERVE_BB_BUFFER(buffer,len) char buffer[len] +#define RESERVE_BB_UBUFFER(buffer,len) unsigned char buffer[len] +#else +#define RESERVE_BB_BUFFER(buffer,len) char *buffer=xmalloc(len) +#define RESERVE_BB_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len) #endif -/* Include our own copy of struct sysinfo to avoid binary compatability - * problems with Linux 2.4, which changed things. Grumble, grumble. */ -struct sysinfo { - long uptime; /* Seconds since boot */ - unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ - unsigned long totalram; /* Total usable main memory size */ - unsigned long freeram; /* Available memory size */ - unsigned long sharedram; /* Amount of shared memory */ - unsigned long bufferram; /* Memory used by buffers */ - unsigned long totalswap; /* Total swap space size */ - unsigned long freeswap; /* swap space still available */ - unsigned short procs; /* Number of current processes */ - unsigned long totalhigh; /* Total high memory size */ - unsigned long freehigh; /* Available high memory size */ - unsigned int mem_unit; /* Memory unit size in bytes */ - char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ -}; -extern int sysinfo (struct sysinfo* info); /* Bit map related macros -- libc5 doens't provide these... sigh. */ #ifndef setbit @@ -247,25 +90,15 @@ extern int sysinfo (struct sysinfo* info); #define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) #endif -#ifdef BB_FEATURE_HUMAN_READABLE -const char *make_human_readable_str(unsigned long val, unsigned long hr); +#ifndef RB_POWER_OFF +/* Stop system and switch power off if possible. */ +#define RB_POWER_OFF 0x4321fedc #endif -enum { - KILOBYTE = 1024, - MEGABYTE = (KILOBYTE*1024), - GIGABYTE = (MEGABYTE*1024) -}; -#ifdef BB_FEATURE_BUFFERS_GO_ON_STACK -#define RESERVE_BB_BUFFER(buffer,len) char buffer[len] -#define RESERVE_BB_UBUFFER(buffer,len) unsigned char buffer[len] -#else -#define RESERVE_BB_BUFFER(buffer,len) char *buffer=xmalloc(len) -#define RESERVE_BB_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len) -#endif -#if defined(BB_FEATURE_RM_INTERACTIVE) && defined(BB_RM) -int ask_confirmation(void); -#endif +/* Pull in the utility routines from libbb */ +#include "libbb/libbb.h" + + #endif /* _BB_INTERNAL_H_ */ diff --git a/include/busybox.h b/include/busybox.h index 194fd8220..9414234c7 100644 --- a/include/busybox.h +++ b/include/busybox.h @@ -44,31 +44,6 @@ typedef unsigned int socklen_t; #endif -/* Some useful definitions */ -#define FALSE ((int) 0) -#define TRUE ((int) 1) -#define SKIP ((int) 2) - -/* for mtab.c */ -#define MTAB_GETMOUNTPT '1' -#define MTAB_GETDEVICE '2' - -#define BUF_SIZE 8192 -#define EXPAND_ALLOC 1024 - -static inline int is_decimal(ch) { return ((ch >= '0') && (ch <= '9')); } -static inline int is_octal(ch) { return ((ch >= '0') && (ch <= '7')); } - -/* Macros for min/max. */ -#ifndef MIN -#define MIN(a,b) (((a)<(b))?(a):(b)) -#endif - -#ifndef MAX -#define MAX(a,b) (((a)>(b))?(a):(b)) -#endif - - enum Location { _BB_DIR_ROOT = 0, _BB_DIR_BIN, @@ -97,146 +72,14 @@ extern const struct BB_applet applets[]; extern const char *applet_name; -extern void show_usage(void) __attribute__ ((noreturn)); -extern void error_msg(const char *s, ...); -extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn)); -extern void perror_msg(const char *s, ...); -extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn)); - -const char *mode_string(int mode); -const char *time_string(time_t timeVal); -int is_directory(const char *name, const int followLinks, struct stat *statBuf); -int isDevice(const char *name); - -typedef struct ino_dev_hash_bucket_struct { - struct ino_dev_hash_bucket_struct *next; - ino_t ino; - dev_t dev; - char name[1]; -} ino_dev_hashtable_bucket_t; -int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name); -void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name); -void reset_ino_dev_hashtable(void); - -int copy_file(const char *srcName, const char *destName, - int setModes, int followLinks, int forceFlag); -int copy_file_chunk(int srcFd, int dstFd, size_t remaining); -char *buildName(const char *dirName, const char *fileName); -int makeString(int argc, const char **argv, char *buf, int bufLen); -char *getChunk(int size); -char *chunkstrdup(const char *str); -void freeChunks(void); -ssize_t safe_read(int fd, void *buf, size_t count); -int full_write(int fd, const char *buf, int len); -int full_read(int fd, char *buf, int len); -int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst, - int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData), - int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData), - void* userData); - -extern int create_path (const char *name, int mode); -extern int parse_mode( const char* s, mode_t* theMode); - -extern int get_kernel_revision(void); - -extern int get_console_fd(char* tty_name); -extern struct mntent *find_mount_point(const char *name, const char *table); -extern void write_mtab(char* blockDevice, char* directory, - char* filesystemType, long flags, char* string_flags); -extern void erase_mtab(const char * name); -extern void mtab_read(void); -extern char *mtab_first(void **iter); -extern char *mtab_next(void **iter); -extern char *mtab_getinfo(const char *match, const char which); -extern int check_wildcard_match(const char* text, const char* pattern); -extern long atoi_w_units (const char *cp); -extern pid_t* find_pid_by_name( char* pidName); -extern int find_real_root_device_name(char* name); -extern char *get_line_from_file(FILE *file); -extern void print_file(FILE *file); -extern int print_file_by_name(char *filename); -extern char process_escape_sequence(char **ptr); -extern char *get_last_path_component(char *path); -extern FILE *wfopen(const char *path, const char *mode); -extern FILE *xfopen(const char *path, const char *mode); -extern void chomp(char *s); -extern void trim(char *s); -extern struct BB_applet *find_applet_by_name(const char *name); -void run_applet_by_name(const char *name, int argc, char **argv); - -#ifndef DMALLOC -extern void *xmalloc (size_t size); -extern void *xrealloc(void *old, size_t size); -extern void *xcalloc(size_t nmemb, size_t size); -extern char *xstrdup (const char *s); -#endif -extern char *xstrndup (const char *s, int n); -extern char * safe_strncpy(char *dst, const char *src, size_t size); - -struct suffix_mult { - char *suffix; - int mult; -}; - -extern unsigned long parse_number(const char *numstr, - const struct suffix_mult *suffixes); - - -/* These parse entries in /etc/passwd and /etc/group. This is desirable - * for BusyBox since we want to avoid using the glibc NSS stuff, which - * increases target size and is often not needed embedded systems. */ -extern long my_getpwnam(const char *name); -extern long my_getgrnam(const char *name); -extern void my_getpwuid(char *name, long uid); -extern void my_getgrgid(char *group, long gid); -extern long my_getpwnamegid(const char *name); - -extern int device_open(char *device, int mode); - -#if defined BB_FEATURE_MOUNT_LOOP -extern int del_loop(const char *device); -extern int set_loop(const char *device, const char *file, int offset, int *loopro); -extern char *find_unused_loop_device (void); -#endif - - -#if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT) -extern int vdprintf(int d, const char *format, va_list ap); -#endif - -#if defined BB_NFSMOUNT -int nfsmount(const char *spec, const char *node, int *flags, - char **extra_opts, char **mount_opts, int running_bg); -#endif - -#ifndef RB_POWER_OFF -/* Stop system and switch power off if possible. */ -#define RB_POWER_OFF 0x4321fedc -#endif - -#if defined(BB_KLOGD) || defined(BB_LOGGER) -void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg); -void syslog_msg(int facility, int pri, const char *msg); +#ifdef BB_FEATURE_BUFFERS_GO_ON_STACK +#define RESERVE_BB_BUFFER(buffer,len) char buffer[len] +#define RESERVE_BB_UBUFFER(buffer,len) unsigned char buffer[len] +#else +#define RESERVE_BB_BUFFER(buffer,len) char *buffer=xmalloc(len) +#define RESERVE_BB_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len) #endif -/* Include our own copy of struct sysinfo to avoid binary compatability - * problems with Linux 2.4, which changed things. Grumble, grumble. */ -struct sysinfo { - long uptime; /* Seconds since boot */ - unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ - unsigned long totalram; /* Total usable main memory size */ - unsigned long freeram; /* Available memory size */ - unsigned long sharedram; /* Amount of shared memory */ - unsigned long bufferram; /* Memory used by buffers */ - unsigned long totalswap; /* Total swap space size */ - unsigned long freeswap; /* swap space still available */ - unsigned short procs; /* Number of current processes */ - unsigned long totalhigh; /* Total high memory size */ - unsigned long freehigh; /* Available high memory size */ - unsigned int mem_unit; /* Memory unit size in bytes */ - char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ -}; -extern int sysinfo (struct sysinfo* info); /* Bit map related macros -- libc5 doens't provide these... sigh. */ #ifndef setbit @@ -247,25 +90,15 @@ extern int sysinfo (struct sysinfo* info); #define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) #endif -#ifdef BB_FEATURE_HUMAN_READABLE -const char *make_human_readable_str(unsigned long val, unsigned long hr); +#ifndef RB_POWER_OFF +/* Stop system and switch power off if possible. */ +#define RB_POWER_OFF 0x4321fedc #endif -enum { - KILOBYTE = 1024, - MEGABYTE = (KILOBYTE*1024), - GIGABYTE = (MEGABYTE*1024) -}; -#ifdef BB_FEATURE_BUFFERS_GO_ON_STACK -#define RESERVE_BB_BUFFER(buffer,len) char buffer[len] -#define RESERVE_BB_UBUFFER(buffer,len) unsigned char buffer[len] -#else -#define RESERVE_BB_BUFFER(buffer,len) char *buffer=xmalloc(len) -#define RESERVE_BB_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len) -#endif -#if defined(BB_FEATURE_RM_INTERACTIVE) && defined(BB_RM) -int ask_confirmation(void); -#endif +/* Pull in the utility routines from libbb */ +#include "libbb/libbb.h" + + #endif /* _BB_INTERNAL_H_ */ diff --git a/include/libbb.h b/include/libbb.h new file mode 100644 index 000000000..a85987d9e --- /dev/null +++ b/include/libbb.h @@ -0,0 +1,209 @@ +/* vi: set sw=4 ts=4: */ +/* + * Busybox main internal header file + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ +#ifndef __LIBBB_H__ +#define __LIBBB_H__ 1 + +#include <stdio.h> +#include <stdarg.h> +#include <sys/stat.h> +#include <sys/types.h> + +#ifdef DMALLOC +#include "dmalloc.h" +#endif + +#include <features.h> +/* Stupid libc doesn't have a reliable way for use to know + * that libc5 is being used. Assume this is good enough */ +#if ! defined __GLIBC__ && ! defined __UCLIBC__ +/* libc5 doesn't define socklen_t */ +typedef unsigned int socklen_t; +#endif + +/* Some useful definitions */ +#define FALSE ((int) 0) +#define TRUE ((int) 1) +#define SKIP ((int) 2) + +/* for mtab.c */ +#define MTAB_GETMOUNTPT '1' +#define MTAB_GETDEVICE '2' + +#define BUF_SIZE 8192 +#define EXPAND_ALLOC 1024 + +static inline int is_decimal(ch) { return ((ch >= '0') && (ch <= '9')); } +static inline int is_octal(ch) { return ((ch >= '0') && (ch <= '7')); } + +/* Macros for min/max. */ +#ifndef MIN +#define MIN(a,b) (((a)<(b))?(a):(b)) +#endif + +#ifndef MAX +#define MAX(a,b) (((a)>(b))?(a):(b)) +#endif + + + +extern void show_usage(void) __attribute__ ((noreturn)); +extern void error_msg(const char *s, ...); +extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn)); +extern void perror_msg(const char *s, ...); +extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn)); + +const char *mode_string(int mode); +const char *time_string(time_t timeVal); +int is_directory(const char *name, const int followLinks, struct stat *statBuf); +int isDevice(const char *name); + +typedef struct ino_dev_hash_bucket_struct { + struct ino_dev_hash_bucket_struct *next; + ino_t ino; + dev_t dev; + char name[1]; +} ino_dev_hashtable_bucket_t; +int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name); +void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name); +void reset_ino_dev_hashtable(void); + +int copy_file(const char *srcName, const char *destName, + int setModes, int followLinks, int forceFlag); +int copy_file_chunk(int srcFd, int dstFd, size_t remaining); +char *buildName(const char *dirName, const char *fileName); +int makeString(int argc, const char **argv, char *buf, int bufLen); +char *getChunk(int size); +char *chunkstrdup(const char *str); +void freeChunks(void); +ssize_t safe_read(int fd, void *buf, size_t count); +int full_write(int fd, const char *buf, int len); +int full_read(int fd, char *buf, int len); +int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst, + int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData), + int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData), + void* userData); + +extern int create_path (const char *name, int mode); +extern int parse_mode( const char* s, mode_t* theMode); + +extern int get_kernel_revision(void); + +extern int get_console_fd(char* tty_name); +extern struct mntent *find_mount_point(const char *name, const char *table); +extern void write_mtab(char* blockDevice, char* directory, + char* filesystemType, long flags, char* string_flags); +extern void erase_mtab(const char * name); +extern void mtab_read(void); +extern char *mtab_first(void **iter); +extern char *mtab_next(void **iter); +extern char *mtab_getinfo(const char *match, const char which); +extern int check_wildcard_match(const char* text, const char* pattern); +extern long atoi_w_units (const char *cp); +extern pid_t* find_pid_by_name( char* pidName); +extern int find_real_root_device_name(char* name); +extern char *get_line_from_file(FILE *file); +extern void print_file(FILE *file); +extern int print_file_by_name(char *filename); +extern char process_escape_sequence(char **ptr); +extern char *get_last_path_component(char *path); +extern FILE *wfopen(const char *path, const char *mode); +extern FILE *xfopen(const char *path, const char *mode); +extern void chomp(char *s); +extern void trim(char *s); +extern struct BB_applet *find_applet_by_name(const char *name); +void run_applet_by_name(const char *name, int argc, char **argv); + +#ifndef DMALLOC +extern void *xmalloc (size_t size); +extern void *xrealloc(void *old, size_t size); +extern void *xcalloc(size_t nmemb, size_t size); +extern char *xstrdup (const char *s); +#endif +extern char *xstrndup (const char *s, int n); +extern char * safe_strncpy(char *dst, const char *src, size_t size); + +struct suffix_mult { + char *suffix; + int mult; +}; + +extern unsigned long parse_number(const char *numstr, + const struct suffix_mult *suffixes); + + +/* These parse entries in /etc/passwd and /etc/group. This is desirable + * for BusyBox since we want to avoid using the glibc NSS stuff, which + * increases target size and is often not needed embedded systems. */ +extern long my_getpwnam(const char *name); +extern long my_getgrnam(const char *name); +extern void my_getpwuid(char *name, long uid); +extern void my_getgrgid(char *group, long gid); +extern long my_getpwnamegid(const char *name); + +extern int device_open(char *device, int mode); + +extern int del_loop(const char *device); +extern int set_loop(const char *device, const char *file, int offset, int *loopro); +extern char *find_unused_loop_device (void); + + +#if (__GLIBC__ < 2) +extern int vdprintf(int d, const char *format, va_list ap); +#endif + +int nfsmount(const char *spec, const char *node, int *flags, + char **extra_opts, char **mount_opts, int running_bg); + +void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg); +void syslog_msg(int facility, int pri, const char *msg); + +/* Include our own copy of struct sysinfo to avoid binary compatability + * problems with Linux 2.4, which changed things. Grumble, grumble. */ +struct sysinfo { + long uptime; /* Seconds since boot */ + unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ + unsigned long totalram; /* Total usable main memory size */ + unsigned long freeram; /* Available memory size */ + unsigned long sharedram; /* Amount of shared memory */ + unsigned long bufferram; /* Memory used by buffers */ + unsigned long totalswap; /* Total swap space size */ + unsigned long freeswap; /* swap space still available */ + unsigned short procs; /* Number of current processes */ + unsigned long totalhigh; /* Total high memory size */ + unsigned long freehigh; /* Available high memory size */ + unsigned int mem_unit; /* Memory unit size in bytes */ + char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ +}; +extern int sysinfo (struct sysinfo* info); + +const char *make_human_readable_str(unsigned long val, unsigned long hr); +enum { + KILOBYTE = 1024, + MEGABYTE = (KILOBYTE*1024), + GIGABYTE = (MEGABYTE*1024) +}; + +int ask_confirmation(void); + +#endif /* __LIBBB_H__ */ diff --git a/libbb/ask_confirmation.c b/libbb/ask_confirmation.c new file mode 100644 index 000000000..f2922379c --- /dev/null +++ b/libbb/ask_confirmation.c @@ -0,0 +1,53 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "libbb.h" + + +int ask_confirmation() +{ + int c = '\0'; + int ret = 0; + + while (c != '\n') { + c = getchar(); + if ( c != '\n' ) { + ret = ((c=='y')||(c=='Y')) ? 1 : 0; + } + } + return ret; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/check_wildcard_match.c b/libbb/check_wildcard_match.c new file mode 100644 index 000000000..7bd3c7998 --- /dev/null +++ b/libbb/check_wildcard_match.c @@ -0,0 +1,140 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "libbb.h" + + +/* + * Routine to see if a text string is matched by a wildcard pattern. + * Returns TRUE if the text is matched, or FALSE if it is not matched + * or if the pattern is invalid. + * * matches zero or more characters + * ? matches a single character + * [abc] matches 'a', 'b' or 'c' + * \c quotes character c + * Adapted from code written by Ingo Wilken, and + * then taken from sash, Copyright (c) 1999 by David I. Bell + * Permission is granted to use, distribute, or modify this source, + * provided that this copyright notice remains intact. + * Permission to distribute this code under the GPL has been granted. + */ +extern int check_wildcard_match(const char *text, const char *pattern) +{ + const char *retryPat; + const char *retryText; + int ch; + int found; + int len; + + retryPat = NULL; + retryText = NULL; + + while (*text || *pattern) { + ch = *pattern++; + + switch (ch) { + case '*': + retryPat = pattern; + retryText = text; + break; + + case '[': + found = FALSE; + + while ((ch = *pattern++) != ']') { + if (ch == '\\') + ch = *pattern++; + + if (ch == '\0') + return FALSE; + + if (*text == ch) + found = TRUE; + } + len=strlen(text); + if (found == FALSE && len!=0) { + return FALSE; + } + if (found == TRUE) { + if (strlen(pattern)==0 && len==1) { + return TRUE; + } + if (len!=0) { + text++; + continue; + } + } + + /* fall into next case */ + + case '?': + if (*text++ == '\0') + return FALSE; + + break; + + case '\\': + ch = *pattern++; + + if (ch == '\0') + return FALSE; + + /* fall into next case */ + + default: + if (*text == ch) { + if (*text) + text++; + break; + } + + if (*text) { + pattern = retryPat; + text = ++retryText; + break; + } + + return FALSE; + } + + if (pattern == NULL) + return FALSE; + } + + return TRUE; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/chomp.c b/libbb/chomp.c new file mode 100644 index 000000000..cbd3d04bc --- /dev/null +++ b/libbb/chomp.c @@ -0,0 +1,51 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "libbb.h" + + +void chomp(char *s) +{ + size_t len = strlen(s); + + if (len == 0) + return; + + if (s[len-1] == '\n') + s[len-1] = '\0'; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/copy_file.c b/libbb/copy_file.c new file mode 100644 index 000000000..64b65b9fa --- /dev/null +++ b/libbb/copy_file.c @@ -0,0 +1,180 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <errno.h> +#include <utime.h> +#include <unistd.h> +#include <fcntl.h> +#include <sys/stat.h> +#include "libbb.h" + + +/* + * Copy one file to another, while possibly preserving its modes, times, and + * modes. Returns TRUE if successful, or FALSE on a failure with an error + * message output. (Failure is not indicated if attributes cannot be set.) + * -Erik Andersen + */ +int +copy_file(const char *srcName, const char *destName, + int setModes, int followLinks, int forceFlag) +{ + int rfd; + int wfd; + int status; + struct stat srcStatBuf; + struct stat dstStatBuf; + struct utimbuf times; + + if (followLinks == TRUE) + status = stat(srcName, &srcStatBuf); + else + status = lstat(srcName, &srcStatBuf); + + if (status < 0) { + perror_msg("%s", srcName); + return FALSE; + } + + if (followLinks == TRUE) + status = stat(destName, &dstStatBuf); + else + status = lstat(destName, &dstStatBuf); + + if (status < 0 || forceFlag==TRUE) { + unlink(destName); + dstStatBuf.st_ino = -1; + dstStatBuf.st_dev = -1; + } + + if ((srcStatBuf.st_dev == dstStatBuf.st_dev) && + (srcStatBuf.st_ino == dstStatBuf.st_ino)) { + error_msg("Copying file \"%s\" to itself", srcName); + return FALSE; + } + + if (S_ISDIR(srcStatBuf.st_mode)) { + //fprintf(stderr, "copying directory %s to %s\n", srcName, destName); + /* Make sure the directory is writable */ + status = mkdir(destName, 0777777 ^ umask(0)); + if (status < 0 && errno != EEXIST) { + perror_msg("%s", destName); + return FALSE; + } + } else if (S_ISLNK(srcStatBuf.st_mode)) { + char link_val[BUFSIZ + 1]; + int link_size; + + //fprintf(stderr, "copying link %s to %s\n", srcName, destName); + /* Warning: This could possibly truncate silently, to BUFSIZ chars */ + link_size = readlink(srcName, &link_val[0], BUFSIZ); + if (link_size < 0) { + perror_msg("%s", srcName); + return FALSE; + } + link_val[link_size] = '\0'; + status = symlink(link_val, destName); + if (status < 0) { + perror_msg("%s", destName); + return FALSE; + } +#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) + if (setModes == TRUE) { + /* Try to set owner, but fail silently like GNU cp */ + lchown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid); + } +#endif + return TRUE; + } else if (S_ISFIFO(srcStatBuf.st_mode)) { + //fprintf(stderr, "copying fifo %s to %s\n", srcName, destName); + if (mkfifo(destName, 0644) < 0) { + perror_msg("%s", destName); + return FALSE; + } + } else if (S_ISBLK(srcStatBuf.st_mode) || S_ISCHR(srcStatBuf.st_mode) + || S_ISSOCK(srcStatBuf.st_mode)) { + //fprintf(stderr, "copying soc, blk, or chr %s to %s\n", srcName, destName); + if (mknod(destName, srcStatBuf.st_mode, srcStatBuf.st_rdev) < 0) { + perror_msg("%s", destName); + return FALSE; + } + } else if (S_ISREG(srcStatBuf.st_mode)) { + //fprintf(stderr, "copying regular file %s to %s\n", srcName, destName); + rfd = open(srcName, O_RDONLY); + if (rfd < 0) { + perror_msg("%s", srcName); + return FALSE; + } + + wfd = open(destName, O_WRONLY | O_CREAT | O_TRUNC, + srcStatBuf.st_mode); + if (wfd < 0) { + perror_msg("%s", destName); + close(rfd); + return FALSE; + } + + if (copy_file_chunk(rfd, wfd, srcStatBuf.st_size)==FALSE) + goto error_exit; + + close(rfd); + if (close(wfd) < 0) { + return FALSE; + } + } + + if (setModes == TRUE) { + /* This is fine, since symlinks never get here */ + if (chown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid) < 0) + perror_msg_and_die("%s", destName); + if (chmod(destName, srcStatBuf.st_mode) < 0) + perror_msg_and_die("%s", destName); + times.actime = srcStatBuf.st_atime; + times.modtime = srcStatBuf.st_mtime; + if (utime(destName, ×) < 0) + perror_msg_and_die("%s", destName); + } + + return TRUE; + + error_exit: + perror_msg("%s", destName); + close(rfd); + close(wfd); + + return FALSE; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/copy_file_chunk.c b/libbb/copy_file_chunk.c new file mode 100644 index 000000000..3c657dd06 --- /dev/null +++ b/libbb/copy_file_chunk.c @@ -0,0 +1,60 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <sys/stat.h> +#include "libbb.h" + +/* + * Copy chunksize bytes between two file descriptors + */ +int copy_file_chunk(int srcfd, int dstfd, size_t chunksize) +{ + size_t size; + char buffer[BUFSIZ]; /* BUFSIZ is declared in stdio.h */ + + while (chunksize > 0) { + if (chunksize > BUFSIZ) + size = BUFSIZ; + else + size = chunksize; + if (full_write(dstfd, buffer, full_read(srcfd, buffer, size)) < size) + return(FALSE); + chunksize -= size; + } + return (TRUE); +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/create_path.c b/libbb/create_path.c new file mode 100644 index 000000000..328afc351 --- /dev/null +++ b/libbb/create_path.c @@ -0,0 +1,71 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include "libbb.h" + +/* + * Attempt to create the directories along the specified path, except for + * the final component. The mode is given for the final directory only, + * while all previous ones get default protections. Errors are not reported + * here, as failures to restore files can be reported later. + */ +extern int create_path(const char *name, int mode) +{ + char *cp; + char *cpOld; + char buf[BUFSIZ + 1]; + int retVal = 0; + + strcpy(buf, name); + for (cp = buf; *cp == '/'; cp++); + cp = strchr(cp, '/'); + while (cp) { + cpOld = cp; + cp = strchr(cp + 1, '/'); + *cpOld = '\0'; + retVal = mkdir(buf, cp ? 0777 : mode); + if (retVal != 0 && errno != EEXIST) { + perror_msg("%s", buf); + return FALSE; + } + *cpOld = '/'; + } + return TRUE; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/device_open.c b/libbb/device_open.c new file mode 100644 index 000000000..8e97ce6c5 --- /dev/null +++ b/libbb/device_open.c @@ -0,0 +1,59 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <fcntl.h> +#include "libbb.h" + + +/* try to open up the specified device */ +extern int device_open(char *device, int mode) +{ + int m, f, fd = -1; + + m = mode | O_NONBLOCK; + + /* Retry up to 5 times */ + for (f = 0; f < 5; f++) + if ((fd = open(device, m, 0600)) >= 0) + break; + if (fd < 0) + return fd; + /* Reset original flags. */ + if (m != mode) + fcntl(fd, F_SETFL, mode); + return fd; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/error_msg.c b/libbb/error_msg.c new file mode 100644 index 000000000..7773d32a2 --- /dev/null +++ b/libbb/error_msg.c @@ -0,0 +1,100 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include <stdlib.h> +#include "libbb.h" + +extern const char *applet_name; + +static void verror_msg(const char *s, va_list p) +{ + fflush(stdout); + fprintf(stderr, "%s: ", applet_name); + vfprintf(stderr, s, p); +} + +extern void error_msg(const char *s, ...) +{ + va_list p; + + va_start(p, s); + verror_msg(s, p); + va_end(p); + putc('\n', stderr); +} + +extern void error_msg_and_die(const char *s, ...) +{ + va_list p; + + va_start(p, s); + verror_msg(s, p); + va_end(p); + putc('\n', stderr); + exit(EXIT_FAILURE); +} + +static void vperror_msg(const char *s, va_list p) +{ + int err=errno; + if(s == 0) s = ""; + verror_msg(s, p); + if (*s) s = ": "; + fprintf(stderr, "%s%s\n", s, strerror(err)); +} + +extern void perror_msg(const char *s, ...) +{ + va_list p; + + va_start(p, s); + vperror_msg(s, p); + va_end(p); +} + +extern void perror_msg_and_die(const char *s, ...) +{ + va_list p; + + va_start(p, s); + vperror_msg(s, p); + va_end(p); + exit(EXIT_FAILURE); +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/find_mount_point.c b/libbb/find_mount_point.c new file mode 100644 index 000000000..27322f7f0 --- /dev/null +++ b/libbb/find_mount_point.c @@ -0,0 +1,80 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "libbb.h" + + +#include <mntent.h> +/* + * Given a block device, find the mount table entry if that block device + * is mounted. + * + * Given any other file (or directory), find the mount table entry for its + * filesystem. + */ +extern struct mntent *find_mount_point(const char *name, const char *table) +{ + struct stat s; + dev_t mountDevice; + FILE *mountTable; + struct mntent *mountEntry; + + if (stat(name, &s) != 0) + return 0; + + if ((s.st_mode & S_IFMT) == S_IFBLK) + mountDevice = s.st_rdev; + else + mountDevice = s.st_dev; + + + if ((mountTable = setmntent(table, "r")) == 0) + return 0; + + while ((mountEntry = getmntent(mountTable)) != 0) { + if (strcmp(name, mountEntry->mnt_dir) == 0 + || strcmp(name, mountEntry->mnt_fsname) == 0) /* String match. */ + break; + if (stat(mountEntry->mnt_fsname, &s) == 0 && s.st_rdev == mountDevice) /* Match the device. */ + break; + if (stat(mountEntry->mnt_dir, &s) == 0 && s.st_dev == mountDevice) /* Match the directory's mount point. */ + break; + } + endmntent(mountTable); + return mountEntry; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/find_pid_by_name.c b/libbb/find_pid_by_name.c new file mode 100644 index 000000000..a22ee1ff8 --- /dev/null +++ b/libbb/find_pid_by_name.c @@ -0,0 +1,168 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <ctype.h> +#include <string.h> +#include <dirent.h> +#include <stdlib.h> +#include "libbb.h" + + +/* For Erik's nifty devps device driver */ +#ifdef BB_FEATURE_USE_DEVPS_PATCH +#include <linux/devps.h> + +/* find_pid_by_name() + * + * This finds the pid of the specified process, + * by using the /dev/ps device driver. + * + * Returns a list of all matching PIDs + */ +extern pid_t* find_pid_by_name( char* pidName) +{ + int fd, i, j; + char device[] = "/dev/ps"; + pid_t num_pids; + pid_t* pid_array = NULL; + pid_t* pidList=NULL; + + /* open device */ + fd = open(device, O_RDONLY); + if (fd < 0) + perror_msg_and_die("open failed for `%s'", device); + + /* Find out how many processes there are */ + if (ioctl (fd, DEVPS_GET_NUM_PIDS, &num_pids)<0) + perror_msg_and_die("\nDEVPS_GET_PID_LIST"); + + /* Allocate some memory -- grab a few extras just in case + * some new processes start up while we wait. The kernel will + * just ignore any extras if we give it too many, and will trunc. + * the list if we give it too few. */ + pid_array = (pid_t*) xcalloc( num_pids+10, sizeof(pid_t)); + pid_array[0] = num_pids+10; + + /* Now grab the pid list */ + if (ioctl (fd, DEVPS_GET_PID_LIST, pid_array)<0) + perror_msg_and_die("\nDEVPS_GET_PID_LIST"); + + /* Now search for a match */ + for (i=1, j=0; i<pid_array[0] ; i++) { + char* p; + struct pid_info info; + + info.pid = pid_array[i]; + if (ioctl (fd, DEVPS_GET_PID_INFO, &info)<0) + perror_msg_and_die("\nDEVPS_GET_PID_INFO"); + + /* Make sure we only match on the process name */ + p=info.command_line+1; + while ((*p != 0) && !isspace(*(p)) && (*(p-1) != '\\')) { + (p)++; + } + if (isspace(*(p))) + *p='\0'; + + if ((strstr(info.command_line, pidName) != NULL) + && (strlen(pidName) == strlen(info.command_line))) { + pidList=xrealloc( pidList, sizeof(pid_t) * (j+2)); + pidList[j++]=info.pid; + } + } + if (pidList) + pidList[j]=0; + + /* Free memory */ + free( pid_array); + + /* close device */ + if (close (fd) != 0) + perror_msg_and_die("close failed for `%s'", device); + + return pidList; +} + +#else /* BB_FEATURE_USE_DEVPS_PATCH */ + +/* find_pid_by_name() + * + * This finds the pid of the specified process. + * Currently, it's implemented by rummaging through + * the proc filesystem. + * + * Returns a list of all matching PIDs + */ +extern pid_t* find_pid_by_name( char* pidName) +{ + DIR *dir; + struct dirent *next; + pid_t* pidList=NULL; + int i=0; + + dir = opendir("/proc"); + if (!dir) + perror_msg_and_die("Cannot open /proc"); + + while ((next = readdir(dir)) != NULL) { + FILE *status; + char filename[256]; + char buffer[256]; + + /* If it isn't a number, we don't want it */ + if (!isdigit(*next->d_name)) + continue; + + sprintf(filename, "/proc/%s/cmdline", next->d_name); + status = fopen(filename, "r"); + if (!status) { + continue; + } + fgets(buffer, 256, status); + fclose(status); + + if (strstr(get_last_path_component(buffer), pidName) != NULL) { + pidList=xrealloc( pidList, sizeof(pid_t) * (i+2)); + pidList[i++]=strtol(next->d_name, NULL, 0); + } + } + + if (pidList) + pidList[i]=0; + return pidList; +} +#endif /* BB_FEATURE_USE_DEVPS_PATCH */ + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/find_root_device.c b/libbb/find_root_device.c new file mode 100644 index 000000000..de765ce44 --- /dev/null +++ b/libbb/find_root_device.c @@ -0,0 +1,85 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <string.h> +#include <dirent.h> +#include "libbb.h" + + + +extern int find_real_root_device_name(char* name) +{ + DIR *dir; + struct dirent *entry; + struct stat statBuf, rootStat; + char fileName[BUFSIZ]; + + if (stat("/", &rootStat) != 0) { + error_msg("could not stat '/'"); + return( FALSE); + } + + dir = opendir("/dev"); + if (!dir) { + error_msg("could not open '/dev'"); + return( FALSE); + } + + while((entry = readdir(dir)) != NULL) { + + /* Must skip ".." since that is "/", and so we + * would get a false positive on ".." */ + if (strcmp(entry->d_name, "..") == 0) + continue; + + snprintf( fileName, strlen(name)+1, "/dev/%s", entry->d_name); + + if (stat(fileName, &statBuf) != 0) + continue; + /* Some char devices have the same dev_t as block + * devices, so make sure this is a block device */ + if (! S_ISBLK(statBuf.st_mode)) + continue; + if (statBuf.st_rdev == rootStat.st_rdev) { + strcpy(name, fileName); + return ( TRUE); + } + } + + return( FALSE); +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/full_read.c b/libbb/full_read.c new file mode 100644 index 000000000..e9c4bbfc6 --- /dev/null +++ b/libbb/full_read.c @@ -0,0 +1,70 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <unistd.h> +#include "libbb.h" + + +/* + * Read all of the supplied buffer from a file. + * This does multiple reads as necessary. + * Returns the amount read, or -1 on an error. + * A short read is returned on an end of file. + */ +int full_read(int fd, char *buf, int len) +{ + int cc; + int total; + + total = 0; + + while (len > 0) { + cc = read(fd, buf, len); + + if (cc < 0) + return -1; + + if (cc == 0) + break; + + buf += cc; + total += cc; + len -= cc; + } + + return total; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/full_write.c b/libbb/full_write.c new file mode 100644 index 000000000..dc9937fa3 --- /dev/null +++ b/libbb/full_write.c @@ -0,0 +1,66 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <unistd.h> +#include "libbb.h" + +/* + * Write all of the supplied buffer out to a file. + * This does multiple writes as necessary. + * Returns the amount written, or -1 on an error. + */ +int full_write(int fd, const char *buf, int len) +{ + int cc; + int total; + + total = 0; + + while (len > 0) { + cc = write(fd, buf, len); + + if (cc < 0) + return -1; + + buf += cc; + total += cc; + len -= cc; + } + + return total; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/get_console.c b/libbb/get_console.c new file mode 100644 index 000000000..4be9adc84 --- /dev/null +++ b/libbb/get_console.c @@ -0,0 +1,129 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <errno.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/ioctl.h> +#include "libbb.h" + + + + + +/* From <linux/kd.h> */ +static const int KDGKBTYPE = 0x4B33; /* get keyboard type */ +static const int KB_84 = 0x01; +static const int KB_101 = 0x02; /* this is what we always answer */ + +int is_a_console(int fd) +{ + char arg; + + arg = 0; + return (ioctl(fd, KDGKBTYPE, &arg) == 0 + && ((arg == KB_101) || (arg == KB_84))); +} + +static int open_a_console(char *fnam) +{ + int fd; + + /* try read-only */ + fd = open(fnam, O_RDWR); + + /* if failed, try read-only */ + if (fd < 0 && errno == EACCES) + fd = open(fnam, O_RDONLY); + + /* if failed, try write-only */ + if (fd < 0 && errno == EACCES) + fd = open(fnam, O_WRONLY); + + /* if failed, fail */ + if (fd < 0) + return -1; + + /* if not a console, fail */ + if (!is_a_console(fd)) { + close(fd); + return -1; + } + + /* success */ + return fd; +} + +/* + * Get an fd for use with kbd/console ioctls. + * We try several things because opening /dev/console will fail + * if someone else used X (which does a chown on /dev/console). + * + * if tty_name is non-NULL, try this one instead. + */ + +int get_console_fd(char *tty_name) +{ + int fd; + + if (tty_name) { + if (-1 == (fd = open_a_console(tty_name))) + return -1; + else + return fd; + } + + fd = open_a_console("/dev/tty"); + if (fd >= 0) + return fd; + + fd = open_a_console("/dev/tty0"); + if (fd >= 0) + return fd; + + fd = open_a_console("/dev/console"); + if (fd >= 0) + return fd; + + for (fd = 0; fd < 3; fd++) + if (is_a_console(fd)) + return fd; + + error_msg("Couldnt get a file descriptor referring to the console"); + return -1; /* total failure */ +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/get_last_path_component.c b/libbb/get_last_path_component.c new file mode 100644 index 000000000..a322288a6 --- /dev/null +++ b/libbb/get_last_path_component.c @@ -0,0 +1,58 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <string.h> +#include "libbb.h" + + +char *get_last_path_component(char *path) +{ + char *s=path+strlen(path)-1; + + /* strip trailing slashes */ + while (s != path && *s == '/') { + *s-- = '\0'; + } + + /* find last component */ + s = strrchr(path, '/'); + if (s == NULL || s[1] == '\0') + return path; + else + return s+1; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/get_line_from_file.c b/libbb/get_line_from_file.c new file mode 100644 index 000000000..759481731 --- /dev/null +++ b/libbb/get_line_from_file.c @@ -0,0 +1,72 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "libbb.h" + + + +/* get_line_from_file() - This function reads an entire line from a text file + * up to a newline. It returns a malloc'ed char * which must be stored and + * free'ed by the caller. */ +extern char *get_line_from_file(FILE *file) +{ + static const int GROWBY = 80; /* how large we will grow strings by */ + + int ch; + int idx = 0; + char *linebuf = NULL; + int linebufsz = 0; + + while (1) { + ch = fgetc(file); + if (ch == EOF) + break; + /* grow the line buffer as necessary */ + while (idx > linebufsz-2) + linebuf = xrealloc(linebuf, linebufsz += GROWBY); + linebuf[idx++] = (char)ch; + if ((char)ch == '\n') + break; + } + + if (idx == 0) + return NULL; + + linebuf[idx] = 0; + return linebuf; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/human_readable.c b/libbb/human_readable.c new file mode 100644 index 000000000..ff2175175 --- /dev/null +++ b/libbb/human_readable.c @@ -0,0 +1,62 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "libbb.h" + + + +const char *make_human_readable_str(unsigned long val, unsigned long hr) +{ + int i=0; + static char str[10] = "\0"; + static const char strings[] = { 'k', 'M', 'G', 'T', 0 }; + unsigned long divisor = 1; + + if(val == 0) + return("0"); + if(hr) + snprintf(str, 9, "%ld", val/hr); + else { + while(val >= divisor && i <= 4) { + divisor=divisor<<10, i++; + } + divisor=divisor>>10, i--; + snprintf(str, 9, "%.1Lf%c", (long double)(val)/divisor, strings[i]); + } + return(str); +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/inode_hash.c b/libbb/inode_hash.c new file mode 100644 index 000000000..db68025dd --- /dev/null +++ b/libbb/inode_hash.c @@ -0,0 +1,105 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include "libbb.h" + +#define HASH_SIZE 311 /* Should be prime */ +#define hash_inode(i) ((i) % HASH_SIZE) + +static ino_dev_hashtable_bucket_t *ino_dev_hashtable[HASH_SIZE]; + +/* + * Return 1 if statbuf->st_ino && statbuf->st_dev are recorded in + * `ino_dev_hashtable', else return 0 + * + * If NAME is a non-NULL pointer to a character pointer, and there is + * a match, then set *NAME to the value of the name slot in that + * bucket. + */ +int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name) +{ + ino_dev_hashtable_bucket_t *bucket; + + bucket = ino_dev_hashtable[hash_inode(statbuf->st_ino)]; + while (bucket != NULL) { + if ((bucket->ino == statbuf->st_ino) && + (bucket->dev == statbuf->st_dev)) + { + if (name) *name = bucket->name; + return 1; + } + bucket = bucket->next; + } + return 0; +} + +/* Add statbuf to statbuf hash table */ +void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name) +{ + int i; + size_t s; + ino_dev_hashtable_bucket_t *bucket; + + i = hash_inode(statbuf->st_ino); + s = name ? strlen(name) : 0; + bucket = xmalloc(sizeof(ino_dev_hashtable_bucket_t) + s); + bucket->ino = statbuf->st_ino; + bucket->dev = statbuf->st_dev; + if (name) + strcpy(bucket->name, name); + else + bucket->name[0] = '\0'; + bucket->next = ino_dev_hashtable[i]; + ino_dev_hashtable[i] = bucket; +} + +/* Clear statbuf hash table */ +void reset_ino_dev_hashtable(void) +{ + int i; + ino_dev_hashtable_bucket_t *bucket; + + for (i = 0; i < HASH_SIZE; i++) { + while (ino_dev_hashtable[i] != NULL) { + bucket = ino_dev_hashtable[i]->next; + free(ino_dev_hashtable[i]); + ino_dev_hashtable[i] = bucket; + } + } +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/isdirectory.c b/libbb/isdirectory.c new file mode 100644 index 000000000..65f4fee00 --- /dev/null +++ b/libbb/isdirectory.c @@ -0,0 +1,71 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <sys/stat.h> +#include "libbb.h" + +/* + * Return TRUE if a fileName is a directory. + * Nonexistant files return FALSE. + */ +int is_directory(const char *fileName, const int followLinks, struct stat *statBuf) +{ + int status; + int didMalloc = 0; + + if (statBuf == NULL) { + statBuf = (struct stat *)xmalloc(sizeof(struct stat)); + ++didMalloc; + } + + if (followLinks == TRUE) + status = stat(fileName, statBuf); + else + status = lstat(fileName, statBuf); + + if (status < 0 || !(S_ISDIR(statBuf->st_mode))) { + status = FALSE; + } + else status = TRUE; + + if (didMalloc) { + free(statBuf); + statBuf = NULL; + } + return status; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/kernel_version.c b/libbb/kernel_version.c new file mode 100644 index 000000000..09cd582c4 --- /dev/null +++ b/libbb/kernel_version.c @@ -0,0 +1,66 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <sys/utsname.h> /* for uname(2) */ + +#include "libbb.h" + +/* Returns kernel version encoded as major*65536 + minor*256 + patch, + * so, for example, to check if the kernel is greater than 2.2.11: + * if (get_kernel_revision() <= 2*65536+2*256+11) { <stuff> } + */ +extern int get_kernel_revision(void) +{ + struct utsname name; + char *s; + int i, r; + + if (uname(&name) == -1) { + perror_msg("cannot get system information"); + return (0); + } + + s = name.release; + r = 0; + for (i=0 ; i<3 ; i++) { + r = r * 256 + atoi(strtok(s, ".")); + s = NULL; + } + return r; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/libbb.h b/libbb/libbb.h new file mode 100644 index 000000000..a85987d9e --- /dev/null +++ b/libbb/libbb.h @@ -0,0 +1,209 @@ +/* vi: set sw=4 ts=4: */ +/* + * Busybox main internal header file + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ +#ifndef __LIBBB_H__ +#define __LIBBB_H__ 1 + +#include <stdio.h> +#include <stdarg.h> +#include <sys/stat.h> +#include <sys/types.h> + +#ifdef DMALLOC +#include "dmalloc.h" +#endif + +#include <features.h> +/* Stupid libc doesn't have a reliable way for use to know + * that libc5 is being used. Assume this is good enough */ +#if ! defined __GLIBC__ && ! defined __UCLIBC__ +/* libc5 doesn't define socklen_t */ +typedef unsigned int socklen_t; +#endif + +/* Some useful definitions */ +#define FALSE ((int) 0) +#define TRUE ((int) 1) +#define SKIP ((int) 2) + +/* for mtab.c */ +#define MTAB_GETMOUNTPT '1' +#define MTAB_GETDEVICE '2' + +#define BUF_SIZE 8192 +#define EXPAND_ALLOC 1024 + +static inline int is_decimal(ch) { return ((ch >= '0') && (ch <= '9')); } +static inline int is_octal(ch) { return ((ch >= '0') && (ch <= '7')); } + +/* Macros for min/max. */ +#ifndef MIN +#define MIN(a,b) (((a)<(b))?(a):(b)) +#endif + +#ifndef MAX +#define MAX(a,b) (((a)>(b))?(a):(b)) +#endif + + + +extern void show_usage(void) __attribute__ ((noreturn)); +extern void error_msg(const char *s, ...); +extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn)); +extern void perror_msg(const char *s, ...); +extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn)); + +const char *mode_string(int mode); +const char *time_string(time_t timeVal); +int is_directory(const char *name, const int followLinks, struct stat *statBuf); +int isDevice(const char *name); + +typedef struct ino_dev_hash_bucket_struct { + struct ino_dev_hash_bucket_struct *next; + ino_t ino; + dev_t dev; + char name[1]; +} ino_dev_hashtable_bucket_t; +int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name); +void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name); +void reset_ino_dev_hashtable(void); + +int copy_file(const char *srcName, const char *destName, + int setModes, int followLinks, int forceFlag); +int copy_file_chunk(int srcFd, int dstFd, size_t remaining); +char *buildName(const char *dirName, const char *fileName); +int makeString(int argc, const char **argv, char *buf, int bufLen); +char *getChunk(int size); +char *chunkstrdup(const char *str); +void freeChunks(void); +ssize_t safe_read(int fd, void *buf, size_t count); +int full_write(int fd, const char *buf, int len); +int full_read(int fd, char *buf, int len); +int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst, + int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData), + int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData), + void* userData); + +extern int create_path (const char *name, int mode); +extern int parse_mode( const char* s, mode_t* theMode); + +extern int get_kernel_revision(void); + +extern int get_console_fd(char* tty_name); +extern struct mntent *find_mount_point(const char *name, const char *table); +extern void write_mtab(char* blockDevice, char* directory, + char* filesystemType, long flags, char* string_flags); +extern void erase_mtab(const char * name); +extern void mtab_read(void); +extern char *mtab_first(void **iter); +extern char *mtab_next(void **iter); +extern char *mtab_getinfo(const char *match, const char which); +extern int check_wildcard_match(const char* text, const char* pattern); +extern long atoi_w_units (const char *cp); +extern pid_t* find_pid_by_name( char* pidName); +extern int find_real_root_device_name(char* name); +extern char *get_line_from_file(FILE *file); +extern void print_file(FILE *file); +extern int print_file_by_name(char *filename); +extern char process_escape_sequence(char **ptr); +extern char *get_last_path_component(char *path); +extern FILE *wfopen(const char *path, const char *mode); +extern FILE *xfopen(const char *path, const char *mode); +extern void chomp(char *s); +extern void trim(char *s); +extern struct BB_applet *find_applet_by_name(const char *name); +void run_applet_by_name(const char *name, int argc, char **argv); + +#ifndef DMALLOC +extern void *xmalloc (size_t size); +extern void *xrealloc(void *old, size_t size); +extern void *xcalloc(size_t nmemb, size_t size); +extern char *xstrdup (const char *s); +#endif +extern char *xstrndup (const char *s, int n); +extern char * safe_strncpy(char *dst, const char *src, size_t size); + +struct suffix_mult { + char *suffix; + int mult; +}; + +extern unsigned long parse_number(const char *numstr, + const struct suffix_mult *suffixes); + + +/* These parse entries in /etc/passwd and /etc/group. This is desirable + * for BusyBox since we want to avoid using the glibc NSS stuff, which + * increases target size and is often not needed embedded systems. */ +extern long my_getpwnam(const char *name); +extern long my_getgrnam(const char *name); +extern void my_getpwuid(char *name, long uid); +extern void my_getgrgid(char *group, long gid); +extern long my_getpwnamegid(const char *name); + +extern int device_open(char *device, int mode); + +extern int del_loop(const char *device); +extern int set_loop(const char *device, const char *file, int offset, int *loopro); +extern char *find_unused_loop_device (void); + + +#if (__GLIBC__ < 2) +extern int vdprintf(int d, const char *format, va_list ap); +#endif + +int nfsmount(const char *spec, const char *node, int *flags, + char **extra_opts, char **mount_opts, int running_bg); + +void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg); +void syslog_msg(int facility, int pri, const char *msg); + +/* Include our own copy of struct sysinfo to avoid binary compatability + * problems with Linux 2.4, which changed things. Grumble, grumble. */ +struct sysinfo { + long uptime; /* Seconds since boot */ + unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ + unsigned long totalram; /* Total usable main memory size */ + unsigned long freeram; /* Available memory size */ + unsigned long sharedram; /* Amount of shared memory */ + unsigned long bufferram; /* Memory used by buffers */ + unsigned long totalswap; /* Total swap space size */ + unsigned long freeswap; /* swap space still available */ + unsigned short procs; /* Number of current processes */ + unsigned long totalhigh; /* Total high memory size */ + unsigned long freehigh; /* Available high memory size */ + unsigned int mem_unit; /* Memory unit size in bytes */ + char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ +}; +extern int sysinfo (struct sysinfo* info); + +const char *make_human_readable_str(unsigned long val, unsigned long hr); +enum { + KILOBYTE = 1024, + MEGABYTE = (KILOBYTE*1024), + GIGABYTE = (MEGABYTE*1024) +}; + +int ask_confirmation(void); + +#endif /* __LIBBB_H__ */ diff --git a/libbb/loop.c b/libbb/loop.c new file mode 100644 index 000000000..4754b8da1 --- /dev/null +++ b/libbb/loop.c @@ -0,0 +1,128 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <errno.h> +#include <fcntl.h> +#include <string.h> +#include <unistd.h> +#include <sys/ioctl.h> +#include "libbb.h" +#include "loop.h" /* Pull in loop device support */ + +extern int del_loop(const char *device) +{ + int fd; + + if ((fd = open(device, O_RDONLY)) < 0) { + perror_msg("%s", device); + return (FALSE); + } + if (ioctl(fd, LOOP_CLR_FD, 0) < 0) { + perror_msg("ioctl: LOOP_CLR_FD"); + return (FALSE); + } + close(fd); + return (TRUE); +} + +extern int set_loop(const char *device, const char *file, int offset, + int *loopro) +{ + struct loop_info loopinfo; + int fd, ffd, mode; + + mode = *loopro ? O_RDONLY : O_RDWR; + if ((ffd = open(file, mode)) < 0 && !*loopro + && (errno != EROFS || (ffd = open(file, mode = O_RDONLY)) < 0)) { + perror_msg("%s", file); + return 1; + } + if ((fd = open(device, mode)) < 0) { + close(ffd); + perror_msg("%s", device); + return 1; + } + *loopro = (mode == O_RDONLY); + + memset(&loopinfo, 0, sizeof(loopinfo)); + safe_strncpy(loopinfo.lo_name, file, LO_NAME_SIZE); + + loopinfo.lo_offset = offset; + + loopinfo.lo_encrypt_key_size = 0; + if (ioctl(fd, LOOP_SET_FD, ffd) < 0) { + perror_msg("ioctl: LOOP_SET_FD"); + close(fd); + close(ffd); + return 1; + } + if (ioctl(fd, LOOP_SET_STATUS, &loopinfo) < 0) { + (void) ioctl(fd, LOOP_CLR_FD, 0); + perror_msg("ioctl: LOOP_SET_STATUS"); + close(fd); + close(ffd); + return 1; + } + close(fd); + close(ffd); + return 0; +} + +extern char *find_unused_loop_device(void) +{ + char dev[20]; + int i, fd; + struct stat statbuf; + struct loop_info loopinfo; + + for (i = 0; i <= 7; i++) { + sprintf(dev, "/dev/loop%d", i); + if (stat(dev, &statbuf) == 0 && S_ISBLK(statbuf.st_mode)) { + if ((fd = open(dev, O_RDONLY)) >= 0) { + if (ioctl(fd, LOOP_GET_STATUS, &loopinfo) != 0) { + if (errno == ENXIO) { /* probably free */ + close(fd); + return strdup(dev); + } + } + close(fd); + } + } + } + return NULL; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/mode_string.c b/libbb/mode_string.c new file mode 100644 index 000000000..0a3d6e6f0 --- /dev/null +++ b/libbb/mode_string.c @@ -0,0 +1,82 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "libbb.h" + + + +#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f) +#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)]) + +/* The special bits. If set, display SMODE0/1 instead of MODE0/1 */ +static const mode_t SBIT[] = { + 0, 0, S_ISUID, + 0, 0, S_ISGID, + 0, 0, S_ISVTX +}; + +/* The 9 mode bits to test */ +static const mode_t MBIT[] = { + S_IRUSR, S_IWUSR, S_IXUSR, + S_IRGRP, S_IWGRP, S_IXGRP, + S_IROTH, S_IWOTH, S_IXOTH +}; + +static const char MODE1[] = "rwxrwxrwx"; +static const char MODE0[] = "---------"; +static const char SMODE1[] = "..s..s..t"; +static const char SMODE0[] = "..S..S..T"; + +/* + * Return the standard ls-like mode string from a file mode. + * This is static and so is overwritten on each call. + */ +const char *mode_string(int mode) +{ + static char buf[12]; + + int i; + + buf[0] = TYPECHAR(mode); + for (i = 0; i < 9; i++) { + if (mode & SBIT[i]) + buf[i + 1] = (mode & MBIT[i]) ? SMODE1[i] : SMODE0[i]; + else + buf[i + 1] = (mode & MBIT[i]) ? MODE1[i] : MODE0[i]; + } + return buf; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/parse_mode.c b/libbb/parse_mode.c new file mode 100644 index 000000000..33a878122 --- /dev/null +++ b/libbb/parse_mode.c @@ -0,0 +1,138 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include "libbb.h" + + +/* This function parses the sort of string you might pass + * to chmod (i.e. [ugoa]{+|-|=}[rwxst] ) and returns the + * correct mode described by the string. */ +extern int parse_mode(const char *s, mode_t * theMode) +{ + static const mode_t group_set[] = { + S_ISUID | S_IRWXU, /* u */ + S_ISGID | S_IRWXG, /* g */ + S_IRWXO, /* o */ + S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO /* a */ + }; + + static const mode_t mode_set[] = { + S_IRUSR | S_IRGRP | S_IROTH, /* r */ + S_IWUSR | S_IWGRP | S_IWOTH, /* w */ + S_IXUSR | S_IXGRP | S_IXOTH, /* x */ + S_ISUID | S_ISGID, /* s */ + S_ISVTX /* t */ + }; + + static const char group_string[] = "ugoa"; + static const char mode_string[] = "rwxst"; + + const char *p; + + mode_t andMode = + S_ISVTX | S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO; + mode_t orMode = 0; + mode_t mode; + mode_t groups; + char type; + char c; + + if (s==NULL) { + return (FALSE); + } + + do { + mode = 0; + groups = 0; + NEXT_GROUP: + if ((c = *s++) == '\0') { + return -1; + } + for (p=group_string ; *p ; p++) { + if (*p == c) { + groups |= group_set[(int)(p-group_string)]; + goto NEXT_GROUP; + } + } + switch (c) { + case '=': + case '+': + case '-': + type = c; + if (groups == 0) { /* The default is "all" */ + groups |= S_ISUID | S_ISGID | S_ISVTX + | S_IRWXU | S_IRWXG | S_IRWXO; + } + break; + default: + if ((c < '0') || (c > '7') || (mode | groups)) { + return (FALSE); + } else { + *theMode = strtol(--s, NULL, 8); + return (TRUE); + } + } + + NEXT_MODE: + if (((c = *s++) != '\0') && (c != ',')) { + for (p=mode_string ; *p ; p++) { + if (*p == c) { + mode |= mode_set[(int)(p-mode_string)]; + goto NEXT_MODE; + } + } + break; /* We're done so break out of loop.*/ + } + switch (type) { + case '=': + andMode &= ~(groups); /* Now fall through. */ + case '+': + orMode |= mode & groups; + break; + case '-': + andMode &= ~(mode & groups); + orMode &= ~(mode & groups); + break; + } + } while (c == ','); + + *theMode &= andMode; + *theMode |= orMode; + + return TRUE; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/parse_number.c b/libbb/parse_number.c new file mode 100644 index 000000000..c90511dca --- /dev/null +++ b/libbb/parse_number.c @@ -0,0 +1,74 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include "libbb.h" + + +unsigned long parse_number(const char *numstr, + const struct suffix_mult *suffixes) +{ + const struct suffix_mult *sm; + unsigned long int ret; + int len; + char *end; + + ret = strtoul(numstr, &end, 10); + if (numstr == end) + error_msg_and_die("invalid number `%s'", numstr); + while (end[0] != '\0') { + sm = suffixes; + while ( sm != 0 ) { + if(sm->suffix) { + len = strlen(sm->suffix); + if (strncmp(sm->suffix, end, len) == 0) { + ret *= sm->mult; + end += len; + break; + } + sm++; + + } else + sm = 0; + } + if (sm == 0) + error_msg_and_die("invalid number `%s'", numstr); + } + return ret; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/print_file.c b/libbb/print_file.c new file mode 100644 index 000000000..52a39774f --- /dev/null +++ b/libbb/print_file.c @@ -0,0 +1,59 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "libbb.h" + + +extern void print_file(FILE *file) +{ + int c; + + while ((c = getc(file)) != EOF) + putc(c, stdout); + fclose(file); + fflush(stdout); +} + +extern int print_file_by_name(char *filename) +{ + FILE *file; + if ((file = wfopen(filename, "r")) == NULL) + return FALSE; + print_file(file); + return TRUE; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/process_escape_sequence.c b/libbb/process_escape_sequence.c new file mode 100644 index 000000000..ad2be94ee --- /dev/null +++ b/libbb/process_escape_sequence.c @@ -0,0 +1,83 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <limits.h> +#include "libbb.h" + + + +char process_escape_sequence(char **ptr) +{ + static const char charmap[] = { + 'a', 'b', 'f', 'n', 'r', 't', 'v', '\\', 0, + '\a', '\b', '\f', '\n', '\r', '\t', '\v', '\\', '\\' }; + + const char *p; + char *q; + int num_digits; + unsigned int n; + + n = 0; + q = *ptr; + + for ( num_digits = 0 ; num_digits < 3 ; ++num_digits) { + if ((*q < '0') || (*q > '7')) { /* not a digit? */ + break; + } + n = n * 8 + (*q++ - '0'); + } + + if (num_digits == 0) { /* mnemonic escape sequence? */ + for (p=charmap ; *p ; p++) { + if (*p == *q) { + q++; + break; + } + } + n = *(p+(sizeof(charmap)/2)); + } + + /* doesn't hurt to fall through to here from mnemonic case */ + if (n > UCHAR_MAX) { /* is octal code too big for a char? */ + n /= 8; /* adjust value and */ + --q; /* back up one char */ + } + + *ptr = q; + return (char) n; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/pwd_grp_wrappers.c b/libbb/pwd_grp_wrappers.c new file mode 100644 index 000000000..e7b7e3820 --- /dev/null +++ b/libbb/pwd_grp_wrappers.c @@ -0,0 +1,109 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <string.h> +#include "../pwd_grp/pwd.h" +#include "../pwd_grp/grp.h" +#include "libbb.h" + + + +/* returns a uid given a username */ +long my_getpwnam(const char *name) +{ + struct passwd *myuser; + + myuser = getpwnam(name); + if (myuser==NULL) + error_msg_and_die("unknown user name: %s", name); + + return myuser->pw_uid; +} + +/* returns a gid given a group name */ +long my_getgrnam(const char *name) +{ + struct group *mygroup; + + mygroup = getgrnam(name); + if (mygroup==NULL) + error_msg_and_die("unknown group name: %s", name); + + return (mygroup->gr_gid); +} + +/* gets a username given a uid */ +void my_getpwuid(char *name, long uid) +{ + struct passwd *myuser; + + myuser = getpwuid(uid); + if (myuser==NULL) + sprintf(name, "%-8ld ", (long)uid); + else + strcpy(name, myuser->pw_name); +} + +/* gets a groupname given a gid */ +void my_getgrgid(char *group, long gid) +{ + struct group *mygroup; + + mygroup = getgrgid(gid); + if (mygroup==NULL) + sprintf(group, "%-8ld ", (long)gid); + else + strcpy(group, mygroup->gr_name); +} + +/* gets a gid given a user name */ +long my_getpwnamegid(const char *name) +{ + struct group *mygroup; + struct passwd *myuser; + + myuser=getpwnam(name); + if (myuser==NULL) + error_msg_and_die("unknown user name: %s", name); + + mygroup = getgrgid(myuser->pw_gid); + if (mygroup==NULL) + error_msg_and_die("unknown gid %ld", (long)myuser->pw_gid); + + return mygroup->gr_gid; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/recursive_action.c b/libbb/recursive_action.c new file mode 100644 index 000000000..6b93340be --- /dev/null +++ b/libbb/recursive_action.c @@ -0,0 +1,160 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <dirent.h> +#include <sys/stat.h> +#include "libbb.h" + +/* same conditions as recursive_action */ +#define bb_need_name_too_long +#define BB_DECLARE_EXTERN +#include "../messages.c" + +#undef DEBUG_RECURS_ACTION + + +/* + * Walk down all the directories under the specified + * location, and do something (something specified + * by the fileAction and dirAction function pointers). + * + * Unfortunately, while nftw(3) could replace this and reduce + * code size a bit, nftw() wasn't supported before GNU libc 2.1, + * and so isn't sufficiently portable to take over since glibc2.1 + * is so stinking huge. + */ +int recursive_action(const char *fileName, + int recurse, int followLinks, int depthFirst, + int (*fileAction) (const char *fileName, + struct stat * statbuf, + void* userData), + int (*dirAction) (const char *fileName, + struct stat * statbuf, + void* userData), + void* userData) +{ + int status; + struct stat statbuf; + struct dirent *next; + + if (followLinks == TRUE) + status = stat(fileName, &statbuf); + else + status = lstat(fileName, &statbuf); + + if (status < 0) { +#ifdef DEBUG_RECURS_ACTION + fprintf(stderr, + "status=%d followLinks=%d TRUE=%d\n", + status, followLinks, TRUE); +#endif + perror_msg("%s", fileName); + return FALSE; + } + + if ((followLinks == FALSE) && (S_ISLNK(statbuf.st_mode))) { + if (fileAction == NULL) + return TRUE; + else + return fileAction(fileName, &statbuf, userData); + } + + if (recurse == FALSE) { + if (S_ISDIR(statbuf.st_mode)) { + if (dirAction != NULL) + return (dirAction(fileName, &statbuf, userData)); + else + return TRUE; + } + } + + if (S_ISDIR(statbuf.st_mode)) { + DIR *dir; + + if (dirAction != NULL && depthFirst == FALSE) { + status = dirAction(fileName, &statbuf, userData); + if (status == FALSE) { + perror_msg("%s", fileName); + return FALSE; + } else if (status == SKIP) + return TRUE; + } + dir = opendir(fileName); + if (!dir) { + perror_msg("%s", fileName); + return FALSE; + } + status = TRUE; + while ((next = readdir(dir)) != NULL) { + char nextFile[PATH_MAX]; + + if ((strcmp(next->d_name, "..") == 0) + || (strcmp(next->d_name, ".") == 0)) { + continue; + } + if (strlen(fileName) + strlen(next->d_name) + 1 > PATH_MAX) { + error_msg(name_too_long); + return FALSE; + } + memset(nextFile, 0, sizeof(nextFile)); + if (fileName[strlen(fileName)-1] == '/') + sprintf(nextFile, "%s%s", fileName, next->d_name); + else + sprintf(nextFile, "%s/%s", fileName, next->d_name); + if (recursive_action(nextFile, TRUE, followLinks, depthFirst, + fileAction, dirAction, userData) == FALSE) { + status = FALSE; + } + } + closedir(dir); + if (dirAction != NULL && depthFirst == TRUE) { + if (dirAction(fileName, &statbuf, userData) == FALSE) { + perror_msg("%s", fileName); + return FALSE; + } + } + if (status == FALSE) + return FALSE; + } else { + if (fileAction == NULL) + return TRUE; + else + return fileAction(fileName, &statbuf, userData); + } + return TRUE; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/safe_read.c b/libbb/safe_read.c new file mode 100644 index 000000000..dbf4aa7e4 --- /dev/null +++ b/libbb/safe_read.c @@ -0,0 +1,54 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +#include "libbb.h" + + + +ssize_t safe_read(int fd, void *buf, size_t count) +{ + ssize_t n; + + do { + n = read(fd, buf, count); + } while (n < 0 && errno == EINTR); + + return n; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/safe_strncpy.c b/libbb/safe_strncpy.c new file mode 100644 index 000000000..55ec79802 --- /dev/null +++ b/libbb/safe_strncpy.c @@ -0,0 +1,48 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <string.h> +#include "libbb.h" + + + +/* Like strncpy but make sure the resulting string is always 0 terminated. */ +extern char * safe_strncpy(char *dst, const char *src, size_t size) +{ + dst[size-1] = '\0'; + return strncpy(dst, src, size-1); +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/syscalls.c b/libbb/syscalls.c new file mode 100644 index 000000000..021154602 --- /dev/null +++ b/libbb/syscalls.c @@ -0,0 +1,76 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <errno.h> +#include <sys/syscall.h> +#include <linux/unistd.h> + +#include "libbb.h" + + +_syscall1(int, sysinfo, struct sysinfo *, info); + +/* Include our own version of <sys/mount.h>, since libc5 doesn't + * know about umount2 */ +extern _syscall1(int, umount, const char *, special_file); +extern _syscall5(int, mount, const char *, special_file, const char *, dir, + const char *, fstype, unsigned long int, rwflag, const void *, data); + +#ifndef __NR_umount2 +# warning This kernel does not support the umount2 syscall +# warning The umount2 system call is being stubbed out... +int umount2(const char * special_file, int flags) +{ + /* BusyBox was compiled against a kernel that did not support + * the umount2 system call. To make this application work, + * you will need to recompile with a kernel supporting the + * umount2 system call. + */ + fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n"); + fprintf(stderr, "with a kernel supporting the umount2 system call. -Erik\n\n"); + errno=ENOSYS; + return -1; +} +# else +extern _syscall2(int, umount2, const char *, special_file, int, flags); +#endif + +#ifndef __NR_query_module +static const int __NR_query_module = 167; +#endif +_syscall5(int, query_module, const char *, name, int, which, + void *, buf, size_t, bufsize, size_t*, ret); + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/syslog_msg_with_name.c b/libbb/syslog_msg_with_name.c new file mode 100644 index 000000000..d72755a37 --- /dev/null +++ b/libbb/syslog_msg_with_name.c @@ -0,0 +1,53 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <sys/syslog.h> +#include "libbb.h" + +extern const char *applet_name; + +void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg) +{ + openlog(name, 0, facility); + syslog(pri, "%s", msg); + closelog(); +} + +void syslog_msg(int facility, int pri, const char *msg) +{ + syslog_msg_with_name(applet_name, facility, pri, msg); +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/time_string.c b/libbb/time_string.c new file mode 100644 index 000000000..076529006 --- /dev/null +++ b/libbb/time_string.c @@ -0,0 +1,68 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <string.h> +#include <time.h> +#include <utime.h> +#include "libbb.h" + + +/* + * Return the standard ls-like time string from a time_t + * This is static and so is overwritten on each call. + */ +const char *time_string(time_t timeVal) +{ + time_t now; + char *str; + static char buf[26]; + + time(&now); + + str = ctime(&timeVal); + + strcpy(buf, &str[4]); + buf[12] = '\0'; + + if ((timeVal > now) || (timeVal < now - 365 * 24 * 60 * 60L)) { + strcpy(&buf[7], &str[20]); + buf[11] = '\0'; + } + + return buf; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/trim.c b/libbb/trim.c new file mode 100644 index 000000000..8a9b07a14 --- /dev/null +++ b/libbb/trim.c @@ -0,0 +1,52 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <string.h> +#include <ctype.h> +#include "libbb.h" + + +void trim(char *s) +{ + /* trim trailing whitespace */ + while (isspace(s[strlen(s)-1])) + s[strlen(s)-1]='\0'; + + /* trim leading whitespace */ + memmove(s, &s[strspn(s, " \n\r\t\v")], strlen(s)); + +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/vdprintf.c b/libbb/vdprintf.c new file mode 100644 index 000000000..a18291b3b --- /dev/null +++ b/libbb/vdprintf.c @@ -0,0 +1,52 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "libbb.h" + + + +#if (__GLIBC__ < 2) +extern int vdprintf(int d, const char *format, va_list ap) +{ + char buf[BUF_SIZE]; + int len; + + len = vsprintf(buf, format, ap); + return write(d, buf, len); +} +#endif + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/wfopen.c b/libbb/wfopen.c new file mode 100644 index 000000000..8b074d2f7 --- /dev/null +++ b/libbb/wfopen.c @@ -0,0 +1,50 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <errno.h> +#include "libbb.h" + +FILE *wfopen(const char *path, const char *mode) +{ + FILE *fp; + if ((fp = fopen(path, mode)) == NULL) { + perror_msg("%s", path); + errno = 0; + } + return fp; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c new file mode 100644 index 000000000..e7f41aae2 --- /dev/null +++ b/libbb/xfuncs.c @@ -0,0 +1,107 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> +#include "libbb.h" + +/* same conditions as recursive_action */ +#define bb_need_memory_exhausted +#define BB_DECLARE_EXTERN +#include "../messages.c" + + +#ifndef DMALLOC +extern void *xmalloc(size_t size) +{ + void *ptr = malloc(size); + + if (!ptr) + error_msg_and_die(memory_exhausted); + return ptr; +} + +extern void *xrealloc(void *old, size_t size) +{ + void *ptr = realloc(old, size); + if (!ptr) + error_msg_and_die(memory_exhausted); + return ptr; +} + +extern void *xcalloc(size_t nmemb, size_t size) +{ + void *ptr = calloc(nmemb, size); + if (!ptr) + error_msg_and_die(memory_exhausted); + return ptr; +} + +extern char * xstrdup (const char *s) { + char *t; + + if (s == NULL) + return NULL; + + t = strdup (s); + + if (t == NULL) + error_msg_and_die(memory_exhausted); + + return t; +} +#endif + +extern char * xstrndup (const char *s, int n) { + char *t; + + if (s == NULL) + error_msg_and_die("xstrndup bug"); + + t = xmalloc(++n); + + return safe_strncpy(t,s,n); +} + +FILE *xfopen(const char *path, const char *mode) +{ + FILE *fp; + if ((fp = fopen(path, mode)) == NULL) + perror_msg_and_die("%s", path); + return fp; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/libbb/xregcomp.c b/libbb/xregcomp.c new file mode 100644 index 000000000..6f5e2f0cb --- /dev/null +++ b/libbb/xregcomp.c @@ -0,0 +1,53 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "libbb.h" +#include <regex.h> + + + +void xregcomp(regex_t *preg, const char *regex, int cflags) +{ + int ret; + if ((ret = regcomp(preg, regex, cflags)) != 0) { + int errmsgsz = regerror(ret, preg, NULL, 0); + char *errmsg = xmalloc(errmsgsz); + regerror(ret, preg, errmsg, errmsgsz); + error_msg_and_die("xregcomp: %s", errmsg); + } +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/mtab_file.c b/mtab_file.c new file mode 100644 index 000000000..3235e35d6 --- /dev/null +++ b/mtab_file.c @@ -0,0 +1,52 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include "busybox.h" + + +/* Busybox mount uses either /proc/mounts or /dev/mtab to + * get the list of currently mounted filesystems */ +#if defined BB_MTAB +const char mtab_file[] = "/etc/mtab"; +#else +# if defined BB_FEATURE_USE_DEVPS_PATCH + const char mtab_file[] = "/dev/mtab"; +# else + const char mtab_file[] = "/proc/mounts"; +# endif +#endif + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ diff --git a/utility.c b/utility.c deleted file mode 100644 index 8408a6cfa..000000000 --- a/utility.c +++ /dev/null @@ -1,1887 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Utility routines. - * - * Copyright (C) tons of folks. Tracking down who wrote what - * isn't something I'm going to worry about... If you wrote something - * here, please feel free to acknowledge your work. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Based in part on code from sash, Copyright (c) 1999 by David I. Bell - * Permission has been granted to redistribute this code under the GPL. - * - */ - -#include <stdio.h> -#include <string.h> -#include <errno.h> -#include <fcntl.h> -#include <dirent.h> -#include <time.h> -#include <utime.h> -#include <unistd.h> -#include <ctype.h> -#include <stdlib.h> -#include <limits.h> -#include <stdarg.h> -#include <sys/ioctl.h> -#include <sys/utsname.h> /* for uname(2) */ - -#include "busybox.h" -#if defined (BB_CHMOD_CHOWN_CHGRP) \ - || defined (BB_CP_MV) \ - || defined (BB_FIND) \ - || defined (BB_INSMOD) \ - || defined (BB_LS) \ - || defined (BB_RM) \ - || defined (BB_TAR) -/* same conditions as recursive_action */ -#define bb_need_name_too_long -#endif -#define bb_need_memory_exhausted -#define bb_need_full_version -#define BB_DECLARE_EXTERN -#include "messages.c" - -#include "pwd_grp/pwd.h" -#include "pwd_grp/grp.h" - -/* for the _syscall() macros */ -#include <sys/syscall.h> -#include <linux/unistd.h> - -/* Busybox mount uses either /proc/mounts or /dev/mtab to - * get the list of currently mounted filesystems */ -#if defined BB_MOUNT || defined BB_UMOUNT || defined BB_DF -# if defined BB_MTAB -const char mtab_file[] = "/etc/mtab"; -# else -# if defined BB_FEATURE_USE_DEVPS_PATCH -const char mtab_file[] = "/dev/mtab"; -# else -const char mtab_file[] = "/proc/mounts"; -# endif -# endif -#endif - -#if defined(BB_KLOGD) || defined(BB_LOGGER) -#include <syslog.h> -#endif - -static struct BB_applet *applet_using; - -extern void show_usage(void) -{ - const char *format_string; - const char *usage_string = usage_messages; - int i; - - for (i = applet_using - applets; i > 0; ) { - if (!*usage_string++) { - --i; - } - } - format_string = "%s\n\nUsage: %s %s\n\n"; - if(*usage_string == 0) - format_string = "%s\n\nNo help available.\n\n"; - fprintf(stderr, format_string, - full_version, applet_using->name, usage_string); - exit(EXIT_FAILURE); -} - - -static void verror_msg(const char *s, va_list p) -{ - fflush(stdout); - fprintf(stderr, "%s: ", applet_name); - vfprintf(stderr, s, p); -} - -extern void error_msg(const char *s, ...) -{ - va_list p; - - va_start(p, s); - verror_msg(s, p); - va_end(p); - putc('\n', stderr); -} - -extern void error_msg_and_die(const char *s, ...) -{ - va_list p; - - va_start(p, s); - verror_msg(s, p); - va_end(p); - putc('\n', stderr); - exit(EXIT_FAILURE); -} - -static void vperror_msg(const char *s, va_list p) -{ - int err=errno; - if(s == 0) s = ""; - verror_msg(s, p); - if (*s) s = ": "; - fprintf(stderr, "%s%s\n", s, strerror(err)); -} - -extern void perror_msg(const char *s, ...) -{ - va_list p; - - va_start(p, s); - vperror_msg(s, p); - va_end(p); -} - -extern void perror_msg_and_die(const char *s, ...) -{ - va_list p; - - va_start(p, s); - vperror_msg(s, p); - va_end(p); - exit(EXIT_FAILURE); -} - -#if defined BB_INIT || defined BB_MKSWAP || defined BB_MOUNT || defined BB_NFSMOUNT || defined BB_FEATURE_IFCONFIG_STATUS -/* Returns kernel version encoded as major*65536 + minor*256 + patch, - * so, for example, to check if the kernel is greater than 2.2.11: - * if (get_kernel_revision() <= 2*65536+2*256+11) { <stuff> } - */ -extern int get_kernel_revision(void) -{ - struct utsname name; - char *s; - int i, r; - - if (uname(&name) == -1) { - perror_msg("cannot get system information"); - return (0); - } - - s = name.release; - r = 0; - for (i=0 ; i<3 ; i++) { - r = r * 256 + atoi(strtok(s, ".")); - s = NULL; - } - return r; -} -#endif /* BB_INIT */ - - - -#if defined BB_FREE || defined BB_INIT || defined BB_UNAME || defined BB_UPTIME -_syscall1(int, sysinfo, struct sysinfo *, info); -#endif /* BB_INIT */ - -#if defined BB_MOUNT || defined BB_UMOUNT - -/* Include our own version of <sys/mount.h>, since libc5 doesn't - * know about umount2 */ -extern _syscall1(int, umount, const char *, special_file); -extern _syscall5(int, mount, const char *, special_file, const char *, dir, - const char *, fstype, unsigned long int, rwflag, const void *, data); -#ifndef __NR_umount2 -# warning This kernel does not support the umount2 syscall -# warning The umount2 system call is being stubbed out... - int umount2(const char * special_file, int flags) - { - /* BusyBox was compiled against a kernel that did not support - * the umount2 system call. To make this application work, - * you will need to recompile with a kernel supporting the - * umount2 system call. - */ - fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n"); - fprintf(stderr, "with a kernel supporting the umount2 system call. -Erik\n\n"); - errno=ENOSYS; - return -1; - } -# else - extern _syscall2(int, umount2, const char *, special_file, int, flags); -# endif -#endif - - - -#if defined BB_FEATURE_NEW_MODULE_INTERFACE && ( defined BB_INSMOD || defined BB_LSMOD ) -#ifndef __NR_query_module -static const int __NR_query_module = 167; -#endif -_syscall5(int, query_module, const char *, name, int, which, - void *, buf, size_t, bufsize, size_t*, ret); -#endif - - -#if defined (BB_CP_MV) || defined (BB_DU) - -#define HASH_SIZE 311 /* Should be prime */ -#define hash_inode(i) ((i) % HASH_SIZE) - -static ino_dev_hashtable_bucket_t *ino_dev_hashtable[HASH_SIZE]; - -/* - * Return 1 if statbuf->st_ino && statbuf->st_dev are recorded in - * `ino_dev_hashtable', else return 0 - * - * If NAME is a non-NULL pointer to a character pointer, and there is - * a match, then set *NAME to the value of the name slot in that - * bucket. - */ -int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name) -{ - ino_dev_hashtable_bucket_t *bucket; - - bucket = ino_dev_hashtable[hash_inode(statbuf->st_ino)]; - while (bucket != NULL) { - if ((bucket->ino == statbuf->st_ino) && - (bucket->dev == statbuf->st_dev)) - { - if (name) *name = bucket->name; - return 1; - } - bucket = bucket->next; - } - return 0; -} - -/* Add statbuf to statbuf hash table */ -void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name) -{ - int i; - size_t s; - ino_dev_hashtable_bucket_t *bucket; - - i = hash_inode(statbuf->st_ino); - s = name ? strlen(name) : 0; - bucket = xmalloc(sizeof(ino_dev_hashtable_bucket_t) + s); - bucket->ino = statbuf->st_ino; - bucket->dev = statbuf->st_dev; - if (name) - strcpy(bucket->name, name); - else - bucket->name[0] = '\0'; - bucket->next = ino_dev_hashtable[i]; - ino_dev_hashtable[i] = bucket; -} - -/* Clear statbuf hash table */ -void reset_ino_dev_hashtable(void) -{ - int i; - ino_dev_hashtable_bucket_t *bucket; - - for (i = 0; i < HASH_SIZE; i++) { - while (ino_dev_hashtable[i] != NULL) { - bucket = ino_dev_hashtable[i]->next; - free(ino_dev_hashtable[i]); - ino_dev_hashtable[i] = bucket; - } - } -} - -#endif /* BB_CP_MV || BB_DU */ - -#if defined (BB_CP_MV) || defined (BB_DU) || defined (BB_LN) || defined (BB_DPKG_DEB) -/* - * Return TRUE if a fileName is a directory. - * Nonexistant files return FALSE. - */ -int is_directory(const char *fileName, const int followLinks, struct stat *statBuf) -{ - int status; - int didMalloc = 0; - - if (statBuf == NULL) { - statBuf = (struct stat *)xmalloc(sizeof(struct stat)); - ++didMalloc; - } - - if (followLinks == TRUE) - status = stat(fileName, statBuf); - else - status = lstat(fileName, statBuf); - - if (status < 0 || !(S_ISDIR(statBuf->st_mode))) { - status = FALSE; - } - else status = TRUE; - - if (didMalloc) { - free(statBuf); - statBuf = NULL; - } - return status; -} -#endif - -#if defined BB_AR || defined BB_CP_MV -/* - * Copy chunksize bytes between two file descriptors - */ -int copy_file_chunk(int srcfd, int dstfd, size_t chunksize) -{ - size_t size; - char buffer[BUFSIZ]; /* BUFSIZ is declared in stdio.h */ - - while (chunksize > 0) { - if (chunksize > BUFSIZ) - size = BUFSIZ; - else - size = chunksize; - if (full_write(dstfd, buffer, full_read(srcfd, buffer, size)) < size) - return(FALSE); - chunksize -= size; - } - return (TRUE); -} -#endif - - -#if defined (BB_CP_MV) || defined BB_DPKG -/* - * Copy one file to another, while possibly preserving its modes, times, and - * modes. Returns TRUE if successful, or FALSE on a failure with an error - * message output. (Failure is not indicated if attributes cannot be set.) - * -Erik Andersen - */ -int -copy_file(const char *srcName, const char *destName, - int setModes, int followLinks, int forceFlag) -{ - int rfd; - int wfd; - int status; - struct stat srcStatBuf; - struct stat dstStatBuf; - struct utimbuf times; - - if (followLinks == TRUE) - status = stat(srcName, &srcStatBuf); - else - status = lstat(srcName, &srcStatBuf); - - if (status < 0) { - perror_msg("%s", srcName); - return FALSE; - } - - if (followLinks == TRUE) - status = stat(destName, &dstStatBuf); - else - status = lstat(destName, &dstStatBuf); - - if (status < 0 || forceFlag==TRUE) { - unlink(destName); - dstStatBuf.st_ino = -1; - dstStatBuf.st_dev = -1; - } - - if ((srcStatBuf.st_dev == dstStatBuf.st_dev) && - (srcStatBuf.st_ino == dstStatBuf.st_ino)) { - error_msg("Copying file \"%s\" to itself", srcName); - return FALSE; - } - - if (S_ISDIR(srcStatBuf.st_mode)) { - //fprintf(stderr, "copying directory %s to %s\n", srcName, destName); - /* Make sure the directory is writable */ - status = mkdir(destName, 0777777 ^ umask(0)); - if (status < 0 && errno != EEXIST) { - perror_msg("%s", destName); - return FALSE; - } - } else if (S_ISLNK(srcStatBuf.st_mode)) { - char link_val[BUFSIZ + 1]; - int link_size; - - //fprintf(stderr, "copying link %s to %s\n", srcName, destName); - /* Warning: This could possibly truncate silently, to BUFSIZ chars */ - link_size = readlink(srcName, &link_val[0], BUFSIZ); - if (link_size < 0) { - perror_msg("%s", srcName); - return FALSE; - } - link_val[link_size] = '\0'; - status = symlink(link_val, destName); - if (status < 0) { - perror_msg("%s", destName); - return FALSE; - } -#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) - if (setModes == TRUE) { - /* Try to set owner, but fail silently like GNU cp */ - lchown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid); - } -#endif - return TRUE; - } else if (S_ISFIFO(srcStatBuf.st_mode)) { - //fprintf(stderr, "copying fifo %s to %s\n", srcName, destName); - if (mkfifo(destName, 0644) < 0) { - perror_msg("%s", destName); - return FALSE; - } - } else if (S_ISBLK(srcStatBuf.st_mode) || S_ISCHR(srcStatBuf.st_mode) - || S_ISSOCK(srcStatBuf.st_mode)) { - //fprintf(stderr, "copying soc, blk, or chr %s to %s\n", srcName, destName); - if (mknod(destName, srcStatBuf.st_mode, srcStatBuf.st_rdev) < 0) { - perror_msg("%s", destName); - return FALSE; - } - } else if (S_ISREG(srcStatBuf.st_mode)) { - //fprintf(stderr, "copying regular file %s to %s\n", srcName, destName); - rfd = open(srcName, O_RDONLY); - if (rfd < 0) { - perror_msg("%s", srcName); - return FALSE; - } - - wfd = open(destName, O_WRONLY | O_CREAT | O_TRUNC, - srcStatBuf.st_mode); - if (wfd < 0) { - perror_msg("%s", destName); - close(rfd); - return FALSE; - } - - if (copy_file_chunk(rfd, wfd, srcStatBuf.st_size)==FALSE) - goto error_exit; - - close(rfd); - if (close(wfd) < 0) { - return FALSE; - } - } - - if (setModes == TRUE) { - /* This is fine, since symlinks never get here */ - if (chown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid) < 0) - perror_msg_and_die("%s", destName); - if (chmod(destName, srcStatBuf.st_mode) < 0) - perror_msg_and_die("%s", destName); - times.actime = srcStatBuf.st_atime; - times.modtime = srcStatBuf.st_mtime; - if (utime(destName, ×) < 0) - perror_msg_and_die("%s", destName); - } - - return TRUE; - - error_exit: - perror_msg("%s", destName); - close(rfd); - close(wfd); - - return FALSE; -} -#endif /* BB_CP_MV */ - - - -#if defined BB_TAR || defined BB_LS ||defined BB_AR - -#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f) -#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)]) - -/* The special bits. If set, display SMODE0/1 instead of MODE0/1 */ -static const mode_t SBIT[] = { - 0, 0, S_ISUID, - 0, 0, S_ISGID, - 0, 0, S_ISVTX -}; - -/* The 9 mode bits to test */ -static const mode_t MBIT[] = { - S_IRUSR, S_IWUSR, S_IXUSR, - S_IRGRP, S_IWGRP, S_IXGRP, - S_IROTH, S_IWOTH, S_IXOTH -}; - -static const char MODE1[] = "rwxrwxrwx"; -static const char MODE0[] = "---------"; -static const char SMODE1[] = "..s..s..t"; -static const char SMODE0[] = "..S..S..T"; - -/* - * Return the standard ls-like mode string from a file mode. - * This is static and so is overwritten on each call. - */ -const char *mode_string(int mode) -{ - static char buf[12]; - - int i; - - buf[0] = TYPECHAR(mode); - for (i = 0; i < 9; i++) { - if (mode & SBIT[i]) - buf[i + 1] = (mode & MBIT[i]) ? SMODE1[i] : SMODE0[i]; - else - buf[i + 1] = (mode & MBIT[i]) ? MODE1[i] : MODE0[i]; - } - return buf; -} -#endif /* BB_TAR || BB_LS */ - - -#if defined BB_TAR || defined BB_AR -/* - * Return the standard ls-like time string from a time_t - * This is static and so is overwritten on each call. - */ -const char *time_string(time_t timeVal) -{ - time_t now; - char *str; - static char buf[26]; - - time(&now); - - str = ctime(&timeVal); - - strcpy(buf, &str[4]); - buf[12] = '\0'; - - if ((timeVal > now) || (timeVal < now - 365 * 24 * 60 * 60L)) { - strcpy(&buf[7], &str[20]); - buf[11] = '\0'; - } - - return buf; -} -#endif /* BB_TAR || BB_AR */ - -#if defined BB_DD || defined BB_NC || defined BB_TAIL || defined BB_TAR || defined BB_AR || defined BB_CP_MV -/* - * Write all of the supplied buffer out to a file. - * This does multiple writes as necessary. - * Returns the amount written, or -1 on an error. - */ -int full_write(int fd, const char *buf, int len) -{ - int cc; - int total; - - total = 0; - - while (len > 0) { - cc = write(fd, buf, len); - - if (cc < 0) - return -1; - - buf += cc; - total += cc; - len -= cc; - } - - return total; -} -#endif - -#if defined BB_AR || defined BB_CP_MV || defined BB_SH || defined BB_TAR -/* - * Read all of the supplied buffer from a file. - * This does multiple reads as necessary. - * Returns the amount read, or -1 on an error. - * A short read is returned on an end of file. - */ -int full_read(int fd, char *buf, int len) -{ - int cc; - int total; - - total = 0; - - while (len > 0) { - cc = read(fd, buf, len); - - if (cc < 0) - return -1; - - if (cc == 0) - break; - - buf += cc; - total += cc; - len -= cc; - } - - return total; -} -#endif /* BB_TAR || BB_TAIL || BB_AR || BB_SH */ - - -#if defined (BB_CHMOD_CHOWN_CHGRP) \ - || defined (BB_CP_MV) \ - || defined (BB_FIND) \ - || defined (BB_INSMOD) \ - || defined (BB_LS) \ - || defined (BB_RM) \ - || defined (BB_TAR) - -/* - * Walk down all the directories under the specified - * location, and do something (something specified - * by the fileAction and dirAction function pointers). - * - * Unfortunately, while nftw(3) could replace this and reduce - * code size a bit, nftw() wasn't supported before GNU libc 2.1, - * and so isn't sufficiently portable to take over since glibc2.1 - * is so stinking huge. - */ -int recursive_action(const char *fileName, - int recurse, int followLinks, int depthFirst, - int (*fileAction) (const char *fileName, - struct stat * statbuf, - void* userData), - int (*dirAction) (const char *fileName, - struct stat * statbuf, - void* userData), - void* userData) -{ - int status; - struct stat statbuf; - struct dirent *next; - - if (followLinks == TRUE) - status = stat(fileName, &statbuf); - else - status = lstat(fileName, &statbuf); - - if (status < 0) { -#ifdef BB_DEBUG_PRINT_SCAFFOLD - fprintf(stderr, - "status=%d followLinks=%d TRUE=%d\n", - status, followLinks, TRUE); -#endif - perror_msg("%s", fileName); - return FALSE; - } - - if ((followLinks == FALSE) && (S_ISLNK(statbuf.st_mode))) { - if (fileAction == NULL) - return TRUE; - else - return fileAction(fileName, &statbuf, userData); - } - - if (recurse == FALSE) { - if (S_ISDIR(statbuf.st_mode)) { - if (dirAction != NULL) - return (dirAction(fileName, &statbuf, userData)); - else - return TRUE; - } - } - - if (S_ISDIR(statbuf.st_mode)) { - DIR *dir; - - if (dirAction != NULL && depthFirst == FALSE) { - status = dirAction(fileName, &statbuf, userData); - if (status == FALSE) { - perror_msg("%s", fileName); - return FALSE; - } else if (status == SKIP) - return TRUE; - } - dir = opendir(fileName); - if (!dir) { - perror_msg("%s", fileName); - return FALSE; - } - status = TRUE; - while ((next = readdir(dir)) != NULL) { - char nextFile[PATH_MAX]; - - if ((strcmp(next->d_name, "..") == 0) - || (strcmp(next->d_name, ".") == 0)) { - continue; - } - if (strlen(fileName) + strlen(next->d_name) + 1 > PATH_MAX) { - error_msg(name_too_long); - return FALSE; - } - memset(nextFile, 0, sizeof(nextFile)); - if (fileName[strlen(fileName)-1] == '/') - sprintf(nextFile, "%s%s", fileName, next->d_name); - else - sprintf(nextFile, "%s/%s", fileName, next->d_name); - if (recursive_action(nextFile, TRUE, followLinks, depthFirst, - fileAction, dirAction, userData) == FALSE) { - status = FALSE; - } - } - closedir(dir); - if (dirAction != NULL && depthFirst == TRUE) { - if (dirAction(fileName, &statbuf, userData) == FALSE) { - perror_msg("%s", fileName); - return FALSE; - } - } - if (status == FALSE) - return FALSE; - } else { - if (fileAction == NULL) - return TRUE; - else - return fileAction(fileName, &statbuf, userData); - } - return TRUE; -} - -#endif /* BB_CHMOD_CHOWN_CHGRP || BB_CP_MV || BB_FIND || BB_LS || BB_INSMOD */ - - - -#if defined (BB_TAR) || defined (BB_MKDIR) -/* - * Attempt to create the directories along the specified path, except for - * the final component. The mode is given for the final directory only, - * while all previous ones get default protections. Errors are not reported - * here, as failures to restore files can be reported later. - */ -extern int create_path(const char *name, int mode) -{ - char *cp; - char *cpOld; - char buf[BUFSIZ + 1]; - int retVal = 0; - - strcpy(buf, name); - for (cp = buf; *cp == '/'; cp++); - cp = strchr(cp, '/'); - while (cp) { - cpOld = cp; - cp = strchr(cp + 1, '/'); - *cpOld = '\0'; - retVal = mkdir(buf, cp ? 0777 : mode); - if (retVal != 0 && errno != EEXIST) { - perror_msg("%s", buf); - return FALSE; - } - *cpOld = '/'; - } - return TRUE; -} -#endif /* BB_TAR || BB_MKDIR */ - - - -#if defined (BB_CHMOD_CHOWN_CHGRP) || defined (BB_MKDIR) \ - || defined (BB_MKFIFO) || defined (BB_MKNOD) || defined (BB_AR) -/* [ugoa]{+|-|=}[rwxst] */ - -extern int parse_mode(const char *s, mode_t * theMode) -{ - static const mode_t group_set[] = { - S_ISUID | S_IRWXU, /* u */ - S_ISGID | S_IRWXG, /* g */ - S_IRWXO, /* o */ - S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO /* a */ - }; - - static const mode_t mode_set[] = { - S_IRUSR | S_IRGRP | S_IROTH, /* r */ - S_IWUSR | S_IWGRP | S_IWOTH, /* w */ - S_IXUSR | S_IXGRP | S_IXOTH, /* x */ - S_ISUID | S_ISGID, /* s */ - S_ISVTX /* t */ - }; - - static const char group_string[] = "ugoa"; - static const char mode_string[] = "rwxst"; - - const char *p; - - mode_t andMode = - S_ISVTX | S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO; - mode_t orMode = 0; - mode_t mode; - mode_t groups; - char type; - char c; - - if (s==NULL) { - return (FALSE); - } - - do { - mode = 0; - groups = 0; - NEXT_GROUP: - if ((c = *s++) == '\0') { - return -1; - } - for (p=group_string ; *p ; p++) { - if (*p == c) { - groups |= group_set[(int)(p-group_string)]; - goto NEXT_GROUP; - } - } - switch (c) { - case '=': - case '+': - case '-': - type = c; - if (groups == 0) { /* The default is "all" */ - groups |= S_ISUID | S_ISGID | S_ISVTX - | S_IRWXU | S_IRWXG | S_IRWXO; - } - break; - default: - if ((c < '0') || (c > '7') || (mode | groups)) { - return (FALSE); - } else { - *theMode = strtol(--s, NULL, 8); - return (TRUE); - } - } - - NEXT_MODE: - if (((c = *s++) != '\0') && (c != ',')) { - for (p=mode_string ; *p ; p++) { - if (*p == c) { - mode |= mode_set[(int)(p-mode_string)]; - goto NEXT_MODE; - } - } - break; /* We're done so break out of loop.*/ - } - switch (type) { - case '=': - andMode &= ~(groups); /* Now fall through. */ - case '+': - orMode |= mode & groups; - break; - case '-': - andMode &= ~(mode & groups); - orMode &= ~(mode & groups); - break; - } - } while (c == ','); - - *theMode &= andMode; - *theMode |= orMode; - - return TRUE; -} - -#endif -/* BB_CHMOD_CHOWN_CHGRP || BB_MKDIR || BB_MKFIFO || BB_MKNOD */ - - - - - -#if defined BB_CHMOD_CHOWN_CHGRP || defined BB_PS || defined BB_LS \ - || defined BB_TAR || defined BB_ID || defined BB_LOGGER \ - || defined BB_LOGNAME || defined BB_WHOAMI || defined BB_SH - -#if defined BB_CHMOD_CHOWN_CHGRP || defined BB_ID -/* returns a uid given a username */ -long my_getpwnam(const char *name) -{ - struct passwd *myuser; - - myuser = getpwnam(name); - if (myuser==NULL) - error_msg_and_die("unknown user name: %s", name); - - return myuser->pw_uid; -} - -/* returns a gid given a group name */ -long my_getgrnam(const char *name) -{ - struct group *mygroup; - - mygroup = getgrnam(name); - if (mygroup==NULL) - error_msg_and_die("unknown group name: %s", name); - - return (mygroup->gr_gid); -} -#endif - -/* gets a username given a uid */ -void my_getpwuid(char *name, long uid) -{ - struct passwd *myuser; - - myuser = getpwuid(uid); - if (myuser==NULL) - sprintf(name, "%-8ld ", (long)uid); - else - strcpy(name, myuser->pw_name); -} - -/* gets a groupname given a gid */ -void my_getgrgid(char *group, long gid) -{ - struct group *mygroup; - - mygroup = getgrgid(gid); - if (mygroup==NULL) - sprintf(group, "%-8ld ", (long)gid); - else - strcpy(group, mygroup->gr_name); -} - -#if defined BB_ID -/* gets a gid given a user name */ -long my_getpwnamegid(const char *name) -{ - struct group *mygroup; - struct passwd *myuser; - - myuser=getpwnam(name); - if (myuser==NULL) - error_msg_and_die("unknown user name: %s", name); - - mygroup = getgrgid(myuser->pw_gid); - if (mygroup==NULL) - error_msg_and_die("unknown gid %ld", (long)myuser->pw_gid); - - return mygroup->gr_gid; -} -#endif /* BB_ID */ -#endif - /* BB_CHMOD_CHOWN_CHGRP || BB_PS || BB_LS || BB_TAR \ - || BB_ID || BB_LOGGER || BB_LOGNAME || BB_WHOAMI */ - - -#if (defined BB_CHVT) || (defined BB_DEALLOCVT) || (defined BB_SETKEYCODES) - -/* From <linux/kd.h> */ -static const int KDGKBTYPE = 0x4B33; /* get keyboard type */ -static const int KB_84 = 0x01; -static const int KB_101 = 0x02; /* this is what we always answer */ - -int is_a_console(int fd) -{ - char arg; - - arg = 0; - return (ioctl(fd, KDGKBTYPE, &arg) == 0 - && ((arg == KB_101) || (arg == KB_84))); -} - -static int open_a_console(char *fnam) -{ - int fd; - - /* try read-only */ - fd = open(fnam, O_RDWR); - - /* if failed, try read-only */ - if (fd < 0 && errno == EACCES) - fd = open(fnam, O_RDONLY); - - /* if failed, try write-only */ - if (fd < 0 && errno == EACCES) - fd = open(fnam, O_WRONLY); - - /* if failed, fail */ - if (fd < 0) - return -1; - - /* if not a console, fail */ - if (!is_a_console(fd)) { - close(fd); - return -1; - } - - /* success */ - return fd; -} - -/* - * Get an fd for use with kbd/console ioctls. - * We try several things because opening /dev/console will fail - * if someone else used X (which does a chown on /dev/console). - * - * if tty_name is non-NULL, try this one instead. - */ - -int get_console_fd(char *tty_name) -{ - int fd; - - if (tty_name) { - if (-1 == (fd = open_a_console(tty_name))) - return -1; - else - return fd; - } - - fd = open_a_console("/dev/tty"); - if (fd >= 0) - return fd; - - fd = open_a_console("/dev/tty0"); - if (fd >= 0) - return fd; - - fd = open_a_console("/dev/console"); - if (fd >= 0) - return fd; - - for (fd = 0; fd < 3; fd++) - if (is_a_console(fd)) - return fd; - - error_msg("Couldnt get a file descriptor referring to the console"); - return -1; /* total failure */ -} - - -#endif /* BB_CHVT || BB_DEALLOCVT || BB_SETKEYCODES */ - - -#if defined BB_FIND || defined BB_INSMOD -/* - * Routine to see if a text string is matched by a wildcard pattern. - * Returns TRUE if the text is matched, or FALSE if it is not matched - * or if the pattern is invalid. - * * matches zero or more characters - * ? matches a single character - * [abc] matches 'a', 'b' or 'c' - * \c quotes character c - * Adapted from code written by Ingo Wilken, and - * then taken from sash, Copyright (c) 1999 by David I. Bell - * Permission is granted to use, distribute, or modify this source, - * provided that this copyright notice remains intact. - * Permission to distribute this code under the GPL has been granted. - */ -extern int check_wildcard_match(const char *text, const char *pattern) -{ - const char *retryPat; - const char *retryText; - int ch; - int found; - int len; - - retryPat = NULL; - retryText = NULL; - - while (*text || *pattern) { - ch = *pattern++; - - switch (ch) { - case '*': - retryPat = pattern; - retryText = text; - break; - - case '[': - found = FALSE; - - while ((ch = *pattern++) != ']') { - if (ch == '\\') - ch = *pattern++; - - if (ch == '\0') - return FALSE; - - if (*text == ch) - found = TRUE; - } - len=strlen(text); - if (found == FALSE && len!=0) { - return FALSE; - } - if (found == TRUE) { - if (strlen(pattern)==0 && len==1) { - return TRUE; - } - if (len!=0) { - text++; - continue; - } - } - - /* fall into next case */ - - case '?': - if (*text++ == '\0') - return FALSE; - - break; - - case '\\': - ch = *pattern++; - - if (ch == '\0') - return FALSE; - - /* fall into next case */ - - default: - if (*text == ch) { - if (*text) - text++; - break; - } - - if (*text) { - pattern = retryPat; - text = ++retryText; - break; - } - - return FALSE; - } - - if (pattern == NULL) - return FALSE; - } - - return TRUE; -} -#endif /* BB_FIND || BB_INSMOD */ - - - - -#if defined BB_DF || defined BB_MTAB -#include <mntent.h> -/* - * Given a block device, find the mount table entry if that block device - * is mounted. - * - * Given any other file (or directory), find the mount table entry for its - * filesystem. - */ -extern struct mntent *find_mount_point(const char *name, const char *table) -{ - struct stat s; - dev_t mountDevice; - FILE *mountTable; - struct mntent *mountEntry; - - if (stat(name, &s) != 0) - return 0; - - if ((s.st_mode & S_IFMT) == S_IFBLK) - mountDevice = s.st_rdev; - else - mountDevice = s.st_dev; - - - if ((mountTable = setmntent(table, "r")) == 0) - return 0; - - while ((mountEntry = getmntent(mountTable)) != 0) { - if (strcmp(name, mountEntry->mnt_dir) == 0 - || strcmp(name, mountEntry->mnt_fsname) == 0) /* String match. */ - break; - if (stat(mountEntry->mnt_fsname, &s) == 0 && s.st_rdev == mountDevice) /* Match the device. */ - break; - if (stat(mountEntry->mnt_dir, &s) == 0 && s.st_dev == mountDevice) /* Match the directory's mount point. */ - break; - } - endmntent(mountTable); - return mountEntry; -} -#endif /* BB_DF || BB_MTAB */ - -#if defined BB_INIT || defined BB_SYSLOGD -/* try to open up the specified device */ -extern int device_open(char *device, int mode) -{ - int m, f, fd = -1; - - m = mode | O_NONBLOCK; - - /* Retry up to 5 times */ - for (f = 0; f < 5; f++) - if ((fd = open(device, m, 0600)) >= 0) - break; - if (fd < 0) - return fd; - /* Reset original flags. */ - if (m != mode) - fcntl(fd, F_SETFL, mode); - return fd; -} -#endif /* BB_INIT BB_SYSLOGD */ - - -#if defined BB_KILLALL || ( defined BB_FEATURE_LINUXRC && ( defined BB_HALT || defined BB_REBOOT || defined BB_POWEROFF )) -#ifdef BB_FEATURE_USE_DEVPS_PATCH -#include <linux/devps.h> /* For Erik's nifty devps device driver */ -#endif - -#if defined BB_FEATURE_USE_DEVPS_PATCH -/* find_pid_by_name() - * - * This finds the pid of the specified process, - * by using the /dev/ps device driver. - * - * Returns a list of all matching PIDs - */ -extern pid_t* find_pid_by_name( char* pidName) -{ - int fd, i, j; - char device[] = "/dev/ps"; - pid_t num_pids; - pid_t* pid_array = NULL; - pid_t* pidList=NULL; - - /* open device */ - fd = open(device, O_RDONLY); - if (fd < 0) - perror_msg_and_die("open failed for `%s'", device); - - /* Find out how many processes there are */ - if (ioctl (fd, DEVPS_GET_NUM_PIDS, &num_pids)<0) - perror_msg_and_die("\nDEVPS_GET_PID_LIST"); - - /* Allocate some memory -- grab a few extras just in case - * some new processes start up while we wait. The kernel will - * just ignore any extras if we give it too many, and will trunc. - * the list if we give it too few. */ - pid_array = (pid_t*) xcalloc( num_pids+10, sizeof(pid_t)); - pid_array[0] = num_pids+10; - - /* Now grab the pid list */ - if (ioctl (fd, DEVPS_GET_PID_LIST, pid_array)<0) - perror_msg_and_die("\nDEVPS_GET_PID_LIST"); - - /* Now search for a match */ - for (i=1, j=0; i<pid_array[0] ; i++) { - char* p; - struct pid_info info; - - info.pid = pid_array[i]; - if (ioctl (fd, DEVPS_GET_PID_INFO, &info)<0) - perror_msg_and_die("\nDEVPS_GET_PID_INFO"); - - /* Make sure we only match on the process name */ - p=info.command_line+1; - while ((*p != 0) && !isspace(*(p)) && (*(p-1) != '\\')) { - (p)++; - } - if (isspace(*(p))) - *p='\0'; - - if ((strstr(info.command_line, pidName) != NULL) - && (strlen(pidName) == strlen(info.command_line))) { - pidList=xrealloc( pidList, sizeof(pid_t) * (j+2)); - pidList[j++]=info.pid; - } - } - if (pidList) - pidList[j]=0; - - /* Free memory */ - free( pid_array); - - /* close device */ - if (close (fd) != 0) - perror_msg_and_die("close failed for `%s'", device); - - return pidList; -} -#else /* BB_FEATURE_USE_DEVPS_PATCH */ - -/* find_pid_by_name() - * - * This finds the pid of the specified process. - * Currently, it's implemented by rummaging through - * the proc filesystem. - * - * Returns a list of all matching PIDs - */ -extern pid_t* find_pid_by_name( char* pidName) -{ - DIR *dir; - struct dirent *next; - pid_t* pidList=NULL; - int i=0; - - dir = opendir("/proc"); - if (!dir) - perror_msg_and_die("Cannot open /proc"); - - while ((next = readdir(dir)) != NULL) { - FILE *status; - char filename[256]; - char buffer[256]; - - /* If it isn't a number, we don't want it */ - if (!isdigit(*next->d_name)) - continue; - - sprintf(filename, "/proc/%s/cmdline", next->d_name); - status = fopen(filename, "r"); - if (!status) { - continue; - } - fgets(buffer, 256, status); - fclose(status); - - if (strstr(get_last_path_component(buffer), pidName) != NULL) { - pidList=xrealloc( pidList, sizeof(pid_t) * (i+2)); - pidList[i++]=strtol(next->d_name, NULL, 0); - } - } - - if (pidList) - pidList[i]=0; - return pidList; -} -#endif /* BB_FEATURE_USE_DEVPS_PATCH */ -#endif /* BB_KILLALL || ( BB_FEATURE_LINUXRC && ( BB_HALT || BB_REBOOT || BB_POWEROFF )) */ - -#ifndef DMALLOC -/* this should really be farmed out to libbusybox.a */ -extern void *xmalloc(size_t size) -{ - void *ptr = malloc(size); - - if (!ptr) - error_msg_and_die(memory_exhausted); - return ptr; -} - -extern void *xrealloc(void *old, size_t size) -{ - void *ptr = realloc(old, size); - if (!ptr) - error_msg_and_die(memory_exhausted); - return ptr; -} - -extern void *xcalloc(size_t nmemb, size_t size) -{ - void *ptr = calloc(nmemb, size); - if (!ptr) - error_msg_and_die(memory_exhausted); - return ptr; -} -#endif - -#if defined BB_NFSMOUNT || defined BB_LS || defined BB_SH || \ - defined BB_WGET || defined BB_DPKG_DEB || defined BB_TAR || \ - defined BB_LN -# ifndef DMALLOC -extern char * xstrdup (const char *s) { - char *t; - - if (s == NULL) - return NULL; - - t = strdup (s); - - if (t == NULL) - error_msg_and_die(memory_exhausted); - - return t; -} -# endif -#endif - -#if defined BB_NFSMOUNT -extern char * xstrndup (const char *s, int n) { - char *t; - - if (s == NULL) - error_msg_and_die("xstrndup bug"); - - t = xmalloc(++n); - - return safe_strncpy(t,s,n); -} -#endif - -#if defined BB_IFCONFIG || defined BB_ROUTE || defined BB_NFSMOUNT || \ - defined BB_FEATURE_MOUNT_LOOP -/* Like strncpy but make sure the resulting string is always 0 terminated. */ -extern char * safe_strncpy(char *dst, const char *src, size_t size) -{ - dst[size-1] = '\0'; - return strncpy(dst, src, size-1); -} -#endif - -#if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT) -extern int vdprintf(int d, const char *format, va_list ap) -{ - char buf[BUF_SIZE]; - int len; - - len = vsprintf(buf, format, ap); - return write(d, buf, len); -} -#endif /* BB_SYSLOGD */ - - -#if defined BB_FEATURE_MOUNT_LOOP -#include <fcntl.h> -#include "loop.h" /* Pull in loop device support */ - -extern int del_loop(const char *device) -{ - int fd; - - if ((fd = open(device, O_RDONLY)) < 0) { - perror_msg("%s", device); - return (FALSE); - } - if (ioctl(fd, LOOP_CLR_FD, 0) < 0) { - perror_msg("ioctl: LOOP_CLR_FD"); - return (FALSE); - } - close(fd); - return (TRUE); -} - -extern int set_loop(const char *device, const char *file, int offset, - int *loopro) -{ - struct loop_info loopinfo; - int fd, ffd, mode; - - mode = *loopro ? O_RDONLY : O_RDWR; - if ((ffd = open(file, mode)) < 0 && !*loopro - && (errno != EROFS || (ffd = open(file, mode = O_RDONLY)) < 0)) { - perror_msg("%s", file); - return 1; - } - if ((fd = open(device, mode)) < 0) { - close(ffd); - perror_msg("%s", device); - return 1; - } - *loopro = (mode == O_RDONLY); - - memset(&loopinfo, 0, sizeof(loopinfo)); - safe_strncpy(loopinfo.lo_name, file, LO_NAME_SIZE); - - loopinfo.lo_offset = offset; - - loopinfo.lo_encrypt_key_size = 0; - if (ioctl(fd, LOOP_SET_FD, ffd) < 0) { - perror_msg("ioctl: LOOP_SET_FD"); - close(fd); - close(ffd); - return 1; - } - if (ioctl(fd, LOOP_SET_STATUS, &loopinfo) < 0) { - (void) ioctl(fd, LOOP_CLR_FD, 0); - perror_msg("ioctl: LOOP_SET_STATUS"); - close(fd); - close(ffd); - return 1; - } - close(fd); - close(ffd); - return 0; -} - -extern char *find_unused_loop_device(void) -{ - char dev[20]; - int i, fd; - struct stat statbuf; - struct loop_info loopinfo; - - for (i = 0; i <= 7; i++) { - sprintf(dev, "/dev/loop%d", i); - if (stat(dev, &statbuf) == 0 && S_ISBLK(statbuf.st_mode)) { - if ((fd = open(dev, O_RDONLY)) >= 0) { - if (ioctl(fd, LOOP_GET_STATUS, &loopinfo) != 0) { - if (errno == ENXIO) { /* probably free */ - close(fd); - return strdup(dev); - } - } - close(fd); - } - } - } - return NULL; -} -#endif /* BB_FEATURE_MOUNT_LOOP */ - -#if defined BB_MOUNT || defined BB_DF || ( defined BB_UMOUNT && ! defined BB_MTAB) -extern int find_real_root_device_name(char* name) -{ - DIR *dir; - struct dirent *entry; - struct stat statBuf, rootStat; - char fileName[BUFSIZ]; - - if (stat("/", &rootStat) != 0) { - error_msg("could not stat '/'"); - return( FALSE); - } - - dir = opendir("/dev"); - if (!dir) { - error_msg("could not open '/dev'"); - return( FALSE); - } - - while((entry = readdir(dir)) != NULL) { - - /* Must skip ".." since that is "/", and so we - * would get a false positive on ".." */ - if (strcmp(entry->d_name, "..") == 0) - continue; - - snprintf( fileName, strlen(name)+1, "/dev/%s", entry->d_name); - - if (stat(fileName, &statBuf) != 0) - continue; - /* Some char devices have the same dev_t as block - * devices, so make sure this is a block device */ - if (! S_ISBLK(statBuf.st_mode)) - continue; - if (statBuf.st_rdev == rootStat.st_rdev) { - strcpy(name, fileName); - return ( TRUE); - } - } - - return( FALSE); -} -#endif - - -/* get_line_from_file() - This function reads an entire line from a text file - * up to a newline. It returns a malloc'ed char * which must be stored and - * free'ed by the caller. */ -extern char *get_line_from_file(FILE *file) -{ - static const int GROWBY = 80; /* how large we will grow strings by */ - - int ch; - int idx = 0; - char *linebuf = NULL; - int linebufsz = 0; - - while (1) { - ch = fgetc(file); - if (ch == EOF) - break; - /* grow the line buffer as necessary */ - while (idx > linebufsz-2) - linebuf = xrealloc(linebuf, linebufsz += GROWBY); - linebuf[idx++] = (char)ch; - if ((char)ch == '\n') - break; - } - - if (idx == 0) - return NULL; - - linebuf[idx] = 0; - return linebuf; -} - -#if defined BB_CAT -extern void print_file(FILE *file) -{ - int c; - - while ((c = getc(file)) != EOF) - putc(c, stdout); - fclose(file); - fflush(stdout); -} - -extern int print_file_by_name(char *filename) -{ - FILE *file; - if ((file = wfopen(filename, "r")) == NULL) - return FALSE; - print_file(file); - return TRUE; -} -#endif /* BB_CAT */ - -#if defined BB_ECHO || defined BB_SH || defined BB_TR -char process_escape_sequence(char **ptr) -{ - static const char charmap[] = { - 'a', 'b', 'f', 'n', 'r', 't', 'v', '\\', 0, - '\a', '\b', '\f', '\n', '\r', '\t', '\v', '\\', '\\' }; - - const char *p; - char *q; - int num_digits; - unsigned int n; - - n = 0; - q = *ptr; - - for ( num_digits = 0 ; num_digits < 3 ; ++num_digits) { - if ((*q < '0') || (*q > '7')) { /* not a digit? */ - break; - } - n = n * 8 + (*q++ - '0'); - } - - if (num_digits == 0) { /* mnemonic escape sequence? */ - for (p=charmap ; *p ; p++) { - if (*p == *q) { - q++; - break; - } - } - n = *(p+(sizeof(charmap)/2)); - } - - /* doesn't hurt to fall through to here from mnemonic case */ - if (n > UCHAR_MAX) { /* is octal code too big for a char? */ - n /= 8; /* adjust value and */ - --q; /* back up one char */ - } - - *ptr = q; - return (char) n; -} -#endif - -#if defined BB_BASENAME || defined BB_LN || defined BB_SH || defined BB_INIT || \ - ! defined BB_FEATURE_USE_DEVPS_PATCH || defined BB_WGET -char *get_last_path_component(char *path) -{ - char *s=path+strlen(path)-1; - - /* strip trailing slashes */ - while (s != path && *s == '/') { - *s-- = '\0'; - } - - /* find last component */ - s = strrchr(path, '/'); - if (s == NULL || s[1] == '\0') - return path; - else - return s+1; -} -#endif - -#if defined BB_GREP || defined BB_SED -#include <regex.h> -void xregcomp(regex_t *preg, const char *regex, int cflags) -{ - int ret; - if ((ret = regcomp(preg, regex, cflags)) != 0) { - int errmsgsz = regerror(ret, preg, NULL, 0); - char *errmsg = xmalloc(errmsgsz); - regerror(ret, preg, errmsg, errmsgsz); - error_msg_and_die("xregcomp: %s", errmsg); - } -} -#endif - -#if defined BB_CAT || defined BB_HEAD || defined BB_WC -FILE *wfopen(const char *path, const char *mode) -{ - FILE *fp; - if ((fp = fopen(path, mode)) == NULL) { - perror_msg("%s", path); - errno = 0; - } - return fp; -} -#endif - -#if defined BB_HOSTNAME || defined BB_LOADACM || defined BB_MORE \ - || defined BB_SED || defined BB_SH || defined BB_TAR || defined BB_UNIQ \ - || defined BB_WC || defined BB_CMP || defined BB_SORT || defined BB_WGET \ - || defined BB_MOUNT || defined BB_ROUTE || defined BB_MKFS_MINIX -FILE *xfopen(const char *path, const char *mode) -{ - FILE *fp; - if ((fp = fopen(path, mode)) == NULL) - perror_msg_and_die("%s", path); - return fp; -} -#endif - -static int applet_name_compare(const void *x, const void *y) -{ - const char *name = x; - const struct BB_applet *applet = y; - - return strcmp(name, applet->name); -} - -extern size_t NUM_APPLETS; - -struct BB_applet *find_applet_by_name(const char *name) -{ - return bsearch(name, applets, NUM_APPLETS, sizeof(struct BB_applet), - applet_name_compare); -} - -void run_applet_by_name(const char *name, int argc, char **argv) -{ - /* Do a binary search to find the applet entry given the name. */ - if ((applet_using = find_applet_by_name(name)) != NULL) { - applet_name = applet_using->name; - if (argv[1] && strcmp(argv[1], "--help") == 0) - show_usage(); - exit((*(applet_using->main)) (argc, argv)); - } -} - -#if defined BB_DD || defined BB_TAIL || defined BB_STTY -unsigned long parse_number(const char *numstr, - const struct suffix_mult *suffixes) -{ - const struct suffix_mult *sm; - unsigned long int ret; - int len; - char *end; - - ret = strtoul(numstr, &end, 10); - if (numstr == end) - error_msg_and_die("invalid number `%s'", numstr); - while (end[0] != '\0') { - sm = suffixes; - while ( sm != 0 ) { - if(sm->suffix) { - len = strlen(sm->suffix); - if (strncmp(sm->suffix, end, len) == 0) { - ret *= sm->mult; - end += len; - break; - } - sm++; - - } else - sm = 0; - } - if (sm == 0) - error_msg_and_die("invalid number `%s'", numstr); - } - return ret; -} -#endif - -#if defined BB_DD || defined BB_NC || defined BB_TAIL -ssize_t safe_read(int fd, void *buf, size_t count) -{ - ssize_t n; - - do { - n = read(fd, buf, count); - } while (n < 0 && errno == EINTR); - - return n; -} -#endif - -#ifdef BB_FEATURE_HUMAN_READABLE -const char *make_human_readable_str(unsigned long val, unsigned long hr) -{ - int i=0; - static char str[10] = "\0"; - static const char strings[] = { 'k', 'M', 'G', 'T', 0 }; - unsigned long divisor = 1; - - if(val == 0) - return("0"); - if(hr) - snprintf(str, 9, "%ld", val/hr); - else { - while(val >= divisor && i <= 4) { - divisor=divisor<<10, i++; - } - divisor=divisor>>10, i--; - snprintf(str, 9, "%.1Lf%c", (long double)(val)/divisor, strings[i]); - } - return(str); -} -#endif - -#if defined(BB_GREP) || defined(BB_HOSTNAME) || defined(BB_SED) || defined(BB_TAR) || defined(BB_WGET) || defined(BB_XARGS) || defined(BB_SH) -void chomp(char *s) -{ - size_t len = strlen(s); - - if (len == 0) - return; - - if (s[len-1] == '\n') - s[len-1] = '\0'; -} -#endif - -#if defined(BB_KLOGD) || defined(BB_LOGGER) -void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg) -{ - openlog(name, 0, facility); - syslog(pri, "%s", msg); - closelog(); -} - -void syslog_msg(int facility, int pri, const char *msg) -{ - syslog_msg_with_name(applet_using->name, facility, pri, msg); -} -#endif - -#if defined(BB_SH) -void trim(char *s) -{ - /* trim trailing whitespace */ - while (isspace(s[strlen(s)-1])) - s[strlen(s)-1]='\0'; - - /* trim leading whitespace */ - memmove(s, &s[strspn(s, " \n\r\t\v")], strlen(s)); - -} -#endif - -#ifdef BB_FEATURE_RM_INTERACTIVE - #if defined (BB_CP_MV) || defined (BB_RM) -int ask_confirmation() -{ - int c = '\0'; - int ret = 0; - - while (c != '\n') { - c = getchar(); - if ( c != '\n' ) { - ret = ((c=='y')||(c=='Y')) ? 1 : 0; - } - } - return ret; -} - #endif -#endif - -/* END CODE */ -/* -Local Variables: -c-file-style: "linux" -c-basic-offset: 4 -tab-width: 4 -End: -*/ |