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/* path.h: path data structures
Copyright 1996, 1997, 1998, 2000 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
struct suffix_info
{
const char *name;
int addon;
suffix_info (const char *s, int addit = 0): name (s), addon (addit) {}
};
enum pathconv_arg
{
PC_SYM_FOLLOW = 0x0001,
PC_SYM_NOFOLLOW = 0x0002,
PC_SYM_IGNORE = 0x0004,
PC_SYM_CONTENTS = 0x0008,
PC_FULL = 0x0010,
PC_NULLEMPTY = 0x0020
};
enum case_checking
{
PCHECK_RELAXED = 0,
PCHECK_ADJUST = 1,
PCHECK_STRICT = 2
};
#define PC_NONULLEMPTY -1
#include <sys/mount.h>
enum path_types
{
PATH_NOTHING = 0,
PATH_SYMLINK = MOUNT_SYMLINK,
PATH_BINARY = MOUNT_BINARY,
PATH_EXEC = MOUNT_EXEC,
PATH_CYGWIN_EXEC = MOUNT_CYGWIN_EXEC,
PATH_ALL_EXEC = (PATH_CYGWIN_EXEC | PATH_EXEC),
PATH_ISDISK = 0x04000000,
PATH_NOTEXEC = 0x08000000,
PATH_HAS_SYMLINKS = 0x10000000,
PATH_HASBUGGYOPEN = 0x20000000,
PATH_SOCKET = 0x40000000,
PATH_HASACLS = 0x80000000
};
class symlink_info;
class path_conv
{
char path[MAX_PATH];
void add_ext_from_sym (symlink_info&);
public:
unsigned path_flags;
int isdisk () {return path_flags & PATH_ISDISK;}
int has_acls () {return path_flags & PATH_HASACLS;}
int has_symlinks () {return path_flags & PATH_HAS_SYMLINKS;}
int hasgood_inode () {return path_flags & PATH_HASACLS;} // Not strictly correct
int has_buggy_open () {return path_flags & PATH_HASBUGGYOPEN;}
int isbinary () {return path_flags & PATH_BINARY;}
int issymlink () {return path_flags & PATH_SYMLINK;}
int issocket () {return path_flags & PATH_SOCKET;}
int iscygexec () {return path_flags & PATH_CYGWIN_EXEC;}
executable_states exec_state ()
{
extern int _check_for_executable;
if (path_flags & PATH_ALL_EXEC)
return is_executable;
if (path_flags & PATH_NOTEXEC)
return not_executable;
if (!_check_for_executable)
return dont_care_if_executable;
return dont_know_if_executable;
}
void set_binary () {path_flags |= PATH_BINARY;}
void set_symlink () {path_flags |= PATH_SYMLINK;}
void set_has_symlinks () {path_flags |= PATH_HAS_SYMLINKS;}
void set_isdisk () {path_flags |= PATH_ISDISK;}
void set_exec (int x = 1) {path_flags |= x ? PATH_EXEC : PATH_NOTEXEC;}
void set_has_acls (int x = 1) {path_flags |= x ? PATH_HASACLS : PATH_NOTHING;}
void set_has_buggy_open (int x = 1) {path_flags |= x ? PATH_HASBUGGYOPEN : PATH_NOTHING;}
char *known_suffix;
int error;
DWORD devn;
int unit;
DWORD fileattr;
BOOL case_clash;
void check (const char *src, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL) __attribute__ ((regparm(3)));
path_conv (int, const char *src, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL)
{
check (src, opt, suffixes);
}
path_conv (const char *src, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL)
{
check (src, opt | PC_NULLEMPTY, suffixes);
}
path_conv (): path_flags (0), known_suffix (NULL), error (0), devn (0), unit (0), fileattr (0xffffffff) {path[0] = '\0';}
inline char *get_win32 () { return path; }
operator char *() {return path; }
BOOL is_device () {return devn != FH_BAD;}
DWORD get_devn () {return devn == FH_BAD ? (DWORD) FH_DISK : devn;}
short get_unitn () {return devn == FH_BAD ? 0 : unit;}
DWORD file_attributes () {return fileattr;}
};
/* Symlink marker */
#define SYMLINK_COOKIE "!<symlink>"
/* Socket marker */
#define SOCKET_COOKIE "!<socket >"
/* Maximum depth of symlinks (after which ELOOP is issued). */
#define MAX_LINK_DEPTH 10
int __stdcall get_device_number (const char *name, int &unit, BOOL from_conv = FALSE) __attribute__ ((regparm(3)));
int __stdcall slash_unc_prefix_p (const char *path) __attribute__ ((regparm(1)));
int __stdcall check_null_empty_path (const char *name) __attribute__ ((regparm(1)));
const char * __stdcall find_exec (const char *name, path_conv& buf, const char *winenv = "PATH=",
int null_if_notfound = 0, const char **known_suffix = NULL) __attribute__ ((regparm(3)));
/* Common macros for checking for invalid path names */
#define check_null_empty_path_errno(src) \
({ \
int __err; \
if ((__err = check_null_empty_path(src))) \
set_errno (__err); \
__err; \
})
#define isdrive(s) (isalpha (*(s)) && (s)[1] == ':')
static inline bool
has_exec_chars (const char *buf, int len)
{
return len >= 2 &&
((buf[0] == '#' && buf[1] == '!') ||
(buf[0] == ':' && buf[1] == '\n') ||
(buf[0] == 'M' && buf[1] == 'Z'));
}
extern int pathmatch (const char *path1, const char *path2);
extern int pathnmatch (const char *path1, const char *path2, int len);
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