diff options
author | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2008-05-19 12:18:50 +0400 |
---|---|---|
committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2008-05-19 12:18:50 +0400 |
commit | ae4342ca3e30f7b11732ecda3ad15821e81bc314 (patch) | |
tree | 1878104940eac4649bc8add4d0b2893ab1cb0a94 /console-tools | |
parent | ee56e013cfb6304f66129afee7978b0864699419 (diff) |
- Rename getpty() to xgetpty() and adjust callers.
- Rewrite kbd_mode and setconsole
- Introduce and use console_make_active() and xopen_xwrite_close()
- honour buffer-reservation method as set by the user (dumpkmap, loadkmap)
- shrink rtcwake and some console-tools
Saves about 270 Bytes
Diffstat (limited to 'console-tools')
-rw-r--r-- | console-tools/chvt.c | 12 | ||||
-rw-r--r-- | console-tools/dumpkmap.c | 19 | ||||
-rw-r--r-- | console-tools/kbd_mode.c | 73 | ||||
-rw-r--r-- | console-tools/loadkmap.c | 25 | ||||
-rw-r--r-- | console-tools/openvt.c | 23 | ||||
-rw-r--r-- | console-tools/reset.c | 2 | ||||
-rw-r--r-- | console-tools/setconsole.c | 32 | ||||
-rw-r--r-- | console-tools/setlogcons.c | 9 |
8 files changed, 85 insertions, 110 deletions
diff --git a/console-tools/chvt.c b/console-tools/chvt.c index ea96d1360..ea3e7c048 100644 --- a/console-tools/chvt.c +++ b/console-tools/chvt.c @@ -9,25 +9,17 @@ #include "libbb.h" -/* From <linux/vt.h> */ -enum { - VT_ACTIVATE = 0x5606, /* make vt active */ - VT_WAITACTIVE = 0x5607 /* wait for vt active */ -}; - int chvt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int chvt_main(int argc, char **argv) { - int fd, num; + int num; if (argc != 2) { bb_show_usage(); } - fd = get_console_fd(); num = xatou_range(argv[1], 1, 63); /* double cast suppresses "cast to ptr from int of different size" */ - xioctl(fd, VT_ACTIVATE, (void *)(ptrdiff_t)num); - xioctl(fd, VT_WAITACTIVE, (void *)(ptrdiff_t)num); + console_make_active(get_console_fd(), num); return EXIT_SUCCESS; } diff --git a/console-tools/dumpkmap.c b/console-tools/dumpkmap.c index 40b58f716..1adfdd738 100644 --- a/console-tools/dumpkmap.c +++ b/console-tools/dumpkmap.c @@ -7,6 +7,7 @@ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. * */ +/* no options, no getopt */ #include "libbb.h" @@ -23,18 +24,17 @@ struct kbentry { #define MAX_NR_KEYMAPS 256 int dumpkmap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int dumpkmap_main(int argc, char **argv) +int dumpkmap_main(int ATTRIBUTE_UNUSED argc, char ATTRIBUTE_UNUSED **argv) { struct kbentry ke; int i, j, fd; - char flags[MAX_NR_KEYMAPS]; + RESERVE_CONFIG_BUFFER(flags,MAX_NR_KEYMAPS); - if (argc >= 2 && argv[1][0] == '-') - bb_show_usage(); +/* bb_warn_ignoring_args(argc>=2);*/ fd = xopen(CURRENT_VC, O_RDWR); - write(1, "bkeymap", 7); + write(STDOUT_FILENO, "bkeymap", 7); /* Here we want to set everything to 0 except for indexes: * [0-2] [4-6] [8-10] [12] */ @@ -43,7 +43,7 @@ int dumpkmap_main(int argc, char **argv) flags[3] = flags[7] = flags[11] = 0; /* dump flags */ - write(1, flags, MAX_NR_KEYMAPS); + write(STDOUT_FILENO, flags, MAX_NR_KEYMAPS); for (i = 0; i < MAX_NR_KEYMAPS; i++) { if (flags[i] == 1) { @@ -56,11 +56,14 @@ int dumpkmap_main(int argc, char **argv) (char *)&ke.kb_table, &ke.kb_value) ) { - write(1, (void*)&ke.kb_value, 2); + write(STDOUT_FILENO, (void*)&ke.kb_value, 2); } } } } - close(fd); + if (ENABLE_FEATURE_CLEAN_UP) { + close(fd); + RELEASE_CONFIG_BUFFER(flags); + } return EXIT_SUCCESS; } diff --git a/console-tools/kbd_mode.c b/console-tools/kbd_mode.c index 46ec3fd28..161495719 100644 --- a/console-tools/kbd_mode.c +++ b/console-tools/kbd_mode.c @@ -1,6 +1,6 @@ /* vi: set sw=4 ts=4: */ /* - * Mini loadkmap implementation for busybox + * Mini kbd_mode implementation for busybox * * Copyright (C) 2007 Loïc Grenié <loic.grenie@gmail.com> * written using Andries Brouwer <aeb@cwi.nl>'s kbd_mode from @@ -14,54 +14,39 @@ #include <linux/kd.h> int kbd_mode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int kbd_mode_main(int argc, char **argv) +int kbd_mode_main(int ATTRIBUTE_UNUSED argc, char **argv) { - static const char opts[] = "saku"; - - const char *opt = argv[1]; - const char *p; int fd; - + unsigned opt; + enum { + SCANCODE = (1<<0), + ASCII = (1<<1), + MEDIUMRAW= (1<<2), + UNICODE = (1<<3) + }; + static const char KD_xxx[] ALIGN1 = "saku"; + opt = getopt32(argv, KD_xxx); fd = get_console_fd(); - if (fd < 0) /* get_console_fd() already complained */ +/* if (fd < 0) return EXIT_FAILURE; +*/ + if (!opt) { /* print current setting */ + const char *mode = "unknown"; + int m; - if (opt == NULL) { - /* No arg */ - const char *msg = "unknown"; - int mode; - - ioctl(fd, KDGKBMODE, &mode); - switch(mode) { - case K_RAW: - msg = "raw (scancode)"; - break; - case K_XLATE: - msg = "default (ASCII)"; - break; - case K_MEDIUMRAW: - msg = "mediumraw (keycode)"; - break; - case K_UNICODE: - msg = "Unicode (UTF-8)"; - break; - } - printf("The keyboard is in %s mode\n", msg); - } - else if (argc > 2 /* more than 1 arg */ - || *opt != '-' /* not an option */ - || (p = strchr(opts, opt[1])) == NULL /* not an option we expect */ - || opt[2] != '\0' /* more than one option char */ - ) { - bb_show_usage(); - /* return EXIT_FAILURE; - not reached */ - } - else { -#if K_RAW != 0 || K_XLATE != 1 || K_MEDIUMRAW != 2 || K_UNICODE != 3 -#error kbd_mode must be changed -#endif - /* The options are in the order of the various K_xxx */ - ioctl(fd, KDSKBMODE, p - opts); + ioctl(fd, KDGKBMODE, &m); + if (m == K_RAW) + mode = "raw (scancode)"; + else if (m == K_XLATE) + mode = "default (ASCII)"; + else if (m == K_MEDIUMRAW) + mode = "mediumraw (keycode)"; + else if (m == K_UNICODE) + mode = "Unicode (UTF-8)"; + printf("The keyboard is in %s mode\n", mode); + } else { + opt = opt & UNICODE ? 3 : opt >> 1; + xioctl(fd, KDSKBMODE, &opt); } if (ENABLE_FEATURE_CLEAN_UP) diff --git a/console-tools/loadkmap.c b/console-tools/loadkmap.c index bea5a771f..28e53ebca 100644 --- a/console-tools/loadkmap.c +++ b/console-tools/loadkmap.c @@ -26,28 +26,26 @@ struct kbentry { #define MAX_NR_KEYMAPS 256 int loadkmap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int loadkmap_main(int argc, char **argv ATTRIBUTE_UNUSED) +int loadkmap_main(int ATTRIBUTE_UNUSED argc, char **argv ATTRIBUTE_UNUSED) { struct kbentry ke; int i, j, fd; uint16_t ibuff[NR_KEYS]; - char flags[MAX_NR_KEYMAPS]; - char buff[7]; + RESERVE_CONFIG_BUFFER(flags,MAX_NR_KEYMAPS); - if (argc != 1) - bb_show_usage(); +/* bb_warn_ignoring_args(argc>=2);*/ fd = xopen(CURRENT_VC, O_RDWR); - xread(0, buff, 7); - if (strncmp(buff, BINARY_KEYMAP_MAGIC, 7)) - bb_error_msg_and_die("this is not a valid binary keymap"); + xread(STDIN_FILENO, flags, 7); + if (strncmp(flags, BINARY_KEYMAP_MAGIC, 7)) + bb_error_msg_and_die("not a valid binary keymap"); - xread(0, flags, MAX_NR_KEYMAPS); + xread(STDIN_FILENO, flags, MAX_NR_KEYMAPS); for (i = 0; i < MAX_NR_KEYMAPS; i++) { if (flags[i] == 1) { - xread(0, ibuff, NR_KEYS * sizeof(uint16_t)); + xread(STDIN_FILENO, ibuff, NR_KEYS * sizeof(uint16_t)); for (j = 0; j < NR_KEYS; j++) { ke.kb_index = j; ke.kb_table = i; @@ -57,6 +55,9 @@ int loadkmap_main(int argc, char **argv ATTRIBUTE_UNUSED) } } - if (ENABLE_FEATURE_CLEAN_UP) close(fd); - return 0; + if (ENABLE_FEATURE_CLEAN_UP) { + close(fd); + RELEASE_CONFIG_BUFFER(flags); + } + return EXIT_SUCCESS; } diff --git a/console-tools/openvt.c b/console-tools/openvt.c index c4746dfd3..208522418 100644 --- a/console-tools/openvt.c +++ b/console-tools/openvt.c @@ -61,7 +61,8 @@ static int get_vt_fd(void) for (fd = 0; fd < 3; fd++) if (!not_vt_fd(fd)) return fd; - /* _only_ O_NONBLOCK: ask for neither read not write perms */ + /* _only_ O_NONBLOCK: ask for neither read nor write perms */ + /*FIXME: use? device_open(DEV_CONSOLE,0); */ fd = open(DEV_CONSOLE, O_NONBLOCK); if (fd >= 0 && !not_vt_fd(fd)) return fd; @@ -93,7 +94,7 @@ static NOINLINE void vfork_child(char **argv) /* CHILD */ /* Try to make this VT our controlling tty */ setsid(); /* lose old ctty */ - ioctl(0, TIOCSCTTY, 0 /* 0: don't forcibly steal */); + ioctl(STDIN_FILENO, TIOCSCTTY, 0 /* 0: don't forcibly steal */); //bb_error_msg("our sid %d", getsid(0)); //bb_error_msg("our pgrp %d", getpgrp()); //bb_error_msg("VT's sid %d", tcgetsid(0)); @@ -135,14 +136,13 @@ int openvt_main(int argc ATTRIBUTE_UNUSED, char **argv) sprintf(vtname, VC_FORMAT, vtno); /* (Try to) clean up stray open fds above fd 2 */ bb_daemonize_or_rexec(DAEMON_CLOSE_EXTRA_FDS | DAEMON_ONLY_SANITIZE, NULL); - close(0); + close(STDIN_FILENO); /*setsid(); - BAD IDEA: after we exit, child is SIGHUPed... */ xopen(vtname, O_RDWR); - xioctl(0, VT_GETSTATE, &vtstat); + xioctl(STDIN_FILENO, VT_GETSTATE, &vtstat); if (flags & OPT_s) { - xioctl(0, VT_ACTIVATE, (void*)(ptrdiff_t)vtno); - xioctl(0, VT_WAITACTIVE, (void*)(ptrdiff_t)vtno); + console_make_active(STDIN_FILENO, vtno); } if (!argv[0]) { @@ -153,14 +153,16 @@ int openvt_main(int argc ATTRIBUTE_UNUSED, char **argv) /*argv[1] = NULL; - already is */ } - xdup2(0, STDOUT_FILENO); - xdup2(0, STDERR_FILENO); + xdup2(STDIN_FILENO, STDOUT_FILENO); + xdup2(STDIN_FILENO, STDERR_FILENO); #ifdef BLOAT + { /* Handle -l (login shell) option */ const char *prog = argv[0]; if (flags & OPT_l) argv[0] = xasprintf("-%s", argv[0]); + } #endif vfork_child(argv); @@ -168,12 +170,11 @@ int openvt_main(int argc ATTRIBUTE_UNUSED, char **argv) /* We have only one child, wait for it */ safe_waitpid(-1, NULL, 0); /* loops on EINTR */ if (flags & OPT_s) { - xioctl(0, VT_ACTIVATE, (void*)(ptrdiff_t)(vtstat.v_active)); - xioctl(0, VT_WAITACTIVE, (void*)(ptrdiff_t)(vtstat.v_active)); + console_make_active(STDIN_FILENO, vtstat.v_active); // Compat: even with -c N (try to) disallocate: // # /usr/app/kbd-1.12/bin/openvt -f -c 9 -ws sleep 5 // openvt: could not deallocate console 9 - xioctl(0, VT_DISALLOCATE, (void*)(ptrdiff_t)vtno); + xioctl(STDIN_FILENO, VT_DISALLOCATE, (void*)(ptrdiff_t)vtno); } } return EXIT_SUCCESS; diff --git a/console-tools/reset.c b/console-tools/reset.c index a2bf44d9f..5d5d4e27b 100644 --- a/console-tools/reset.c +++ b/console-tools/reset.c @@ -26,7 +26,7 @@ int reset_main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) /* no options, no getopt */ - if (isatty(0) && isatty(1)) { + if (isatty(STDIN_FILENO) && isatty(STDOUT_FILENO)) { /* See 'man 4 console_codes' for details: * "ESC c" -- Reset * "ESC ( K" -- Select user mapping diff --git a/console-tools/setconsole.c b/console-tools/setconsole.c index 8765a7c2e..82fe83f22 100644 --- a/console-tools/setconsole.c +++ b/console-tools/setconsole.c @@ -3,40 +3,34 @@ * setconsole.c - redirect system console output * * Copyright (C) 2004,2005 Enrik Berkhan <Enrik.Berkhan@inka.de> + * Copyright (C) 2008 Bernhard Fischer * * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ #include "libbb.h" -#if ENABLE_FEATURE_SETCONSOLE_LONG_OPTIONS -static const char setconsole_longopts[] ALIGN1 = - "reset\0" No_argument "r" - ; -#endif - -#define OPT_SETCONS_RESET 1 - int setconsole_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int setconsole_main(int argc, char **argv) +int setconsole_main(int ATTRIBUTE_UNUSED argc, char **argv) { - unsigned long flags; const char *device = CURRENT_TTY; + bool reset; #if ENABLE_FEATURE_SETCONSOLE_LONG_OPTIONS + static const char setconsole_longopts[] ALIGN1 = + "reset\0" No_argument "r" + ; applet_long_options = setconsole_longopts; #endif - flags = getopt32(argv, "r"); - - if (argc - optind > 1) - bb_show_usage(); + /* at most one non-option argument */ + opt_complementary = "?1"; + reset = getopt32(argv, "r"); - if (argc - optind == 1) { - if (flags & OPT_SETCONS_RESET) - bb_show_usage(); - device = argv[optind]; + argv += 1 + reset; + if (*argv) { + device = *argv; } else { - if (flags & OPT_SETCONS_RESET) + if (reset) device = DEV_CONSOLE; } diff --git a/console-tools/setlogcons.c b/console-tools/setlogcons.c index b312fa76e..aa8e0806f 100644 --- a/console-tools/setlogcons.c +++ b/console-tools/setlogcons.c @@ -17,15 +17,14 @@ int setlogcons_main(int argc ATTRIBUTE_UNUSED, char **argv) struct { char fn; char subarg; - } arg; - - arg.fn = 11; /* redirect kernel messages */ - arg.subarg = 0; /* to specified console (current as default) */ + } arg = { 11, /* redirect kernel messages */ + 0 /* to specified console (current as default) */ + }; if (argv[1]) arg.subarg = xatou_range(argv[1], 0, 63); xioctl(xopen(VC_1, O_RDONLY), TIOCLINUX, &arg); - return 0; + return EXIT_SUCCESS; } |