diff options
author | Denys Vlasenko <vda.linux@googlemail.com> | 2014-05-02 17:15:58 +0200 |
---|---|---|
committer | Denys Vlasenko <vda.linux@googlemail.com> | 2014-05-02 17:15:58 +0200 |
commit | e765b5ac349a8f9305e52b3ab2c3ac78c17bf283 (patch) | |
tree | 2dec8a3b34450b7088ae7c3a4b374e953c0a4a73 /libbb/execable.c | |
parent | 15a357e5962634c94ee322fee4da897312090a89 (diff) |
libbb: rename execable -> executable. No code changes
English speakers complained that it sounded awfully broken.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb/execable.c')
-rw-r--r-- | libbb/execable.c | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/libbb/execable.c b/libbb/execable.c deleted file mode 100644 index a3caea6f9..000000000 --- a/libbb/execable.c +++ /dev/null @@ -1,92 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Utility routines. - * - * Copyright (C) 2006 Gabriel Somlo <somlo at cmu.edu> - * - * Licensed under GPLv2 or later, see file LICENSE in this source tree. - */ - -#include "libbb.h" - -/* check if path points to an executable file; - * return 1 if found; - * return 0 otherwise; - */ -int FAST_FUNC execable_file(const char *name) -{ - struct stat s; - return (!access(name, X_OK) && !stat(name, &s) && S_ISREG(s.st_mode)); -} - -/* search (*PATHp) for an executable file; - * return allocated string containing full path if found; - * PATHp points to the component after the one where it was found - * (or NULL), - * you may call find_execable again with this PATHp to continue - * (if it's not NULL). - * return NULL otherwise; (PATHp is undefined) - * in all cases (*PATHp) contents will be trashed (s/:/NUL/). - */ -char* FAST_FUNC find_execable(const char *filename, char **PATHp) -{ - /* About empty components in $PATH: - * http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html - * 8.3 Other Environment Variables - PATH - * A zero-length prefix is a legacy feature that indicates the current - * working directory. It appears as two adjacent colons ( "::" ), as an - * initial colon preceding the rest of the list, or as a trailing colon - * following the rest of the list. - */ - char *p, *n; - - p = *PATHp; - while (p) { - n = strchr(p, ':'); - if (n) - *n++ = '\0'; - p = concat_path_file( - p[0] ? p : ".", /* handle "::" case */ - filename - ); - if (execable_file(p)) { - *PATHp = n; - return p; - } - free(p); - p = n; - } /* on loop exit p == NULL */ - return p; -} - -/* search $PATH for an executable file; - * return 1 if found; - * return 0 otherwise; - */ -int FAST_FUNC exists_execable(const char *filename) -{ - char *path = xstrdup(getenv("PATH")); - char *tmp = path; - char *ret = find_execable(filename, &tmp); - free(path); - free(ret); - return ret != NULL; -} - -#if ENABLE_FEATURE_PREFER_APPLETS -/* just like the real execvp, but try to launch an applet named 'file' first */ -int FAST_FUNC BB_EXECVP(const char *file, char *const argv[]) -{ - if (find_applet_by_name(file) >= 0) - execvp(bb_busybox_exec_path, argv); - return execvp(file, argv); -} -#endif - -int FAST_FUNC BB_EXECVP_or_die(char **argv) -{ - BB_EXECVP(argv[0], argv); - /* SUSv3-mandated exit codes */ - xfunc_error_retval = (errno == ENOENT) ? 127 : 126; - bb_perror_msg_and_die("can't execute '%s'", argv[0]); -} |