1 /* vi: set sw=4 ts=4: */
3 * Which implementation for busybox
5 * Copyright (C) 2000 by Lineo, inc.
6 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include <sys/param.h>
30 extern int which_main(int argc, char **argv)
32 char *path_list, *test, *tmp, *path_parsed;
37 if (argc <= 1 || **(argv + 1) == '-') {
38 usage("which [COMMAND ...]\n"
39 #ifndef BB_FEATURE_TRIVIAL_HELP
40 "\nLocates a COMMAND.\n"
46 path_list = getenv("PATH");
48 path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin";
50 path_parsed = malloc (strlen(path_list) + 1);
51 strcpy (path_parsed, path_list);
53 /* Replace colons with zeros in path_parsed and count them */
57 tmp = strchr(test, ':');
71 for (i = 0; i < count; i++) {
75 if (stat (buf, &filestat) == 0
76 && filestat.st_mode & S_IXUSR)
81 test += (strlen(test) + 1);
87 printf ("which: no %s in (%s)\n", *argv, path_list);