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
29 extern int which_main(int argc, char **argv)
31 char *path_list, *test, *tmp;
34 if (**(argv + 1) == '-') {
35 usage("which [COMMAND ...]\n"
36 #ifndef BB_FEATURE_TRIVIAL_HELP
37 "\nLocates a COMMAND.\n"
43 path_list = getenv("PATH");
45 path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin";
47 while(argc-- > 0 && *(argv++) != '\0' && strlen(*argv)) {
48 for( test=path_list; (tmp=strchr(test, ':')) && (tmp+1)!=NULL; test=++tmp) {
51 //printf("Checking directory '%s'\n", test);
55 while ((next = readdir(dir)) != NULL) {
56 //printf("Checking file '%s'\n", next->d_name);
57 if ((strcmp(next->d_name, *argv) == 0)) {
58 printf("%s/%s\n", test, next->d_name);