blob: da8801fabe6789865dd5cfc3265a683fcc8a7cbb [file] [log] [blame]
Erik Andersen330fd2b2000-05-19 05:35:19 +00001/* vi: set sw=4 ts=4: */
2/*
3 * Which implementation for busybox
4 *
5 * Copyright (C) 2000 by Lineo, inc.
6 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
7 *
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.
12 *
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.
17 *
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
21 *
22 */
23
Eric Andersen3570a342000-09-25 21:45:58 +000024#include "busybox.h"
Erik Andersen330fd2b2000-05-19 05:35:19 +000025#include <stdio.h>
Erik Andersen330fd2b2000-05-19 05:35:19 +000026
Erik Andersen330fd2b2000-05-19 05:35:19 +000027extern int which_main(int argc, char **argv)
28{
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000029 char *path_list, *path_n;
Pavel Roskinc389d912000-06-05 23:41:27 +000030 struct stat filestat;
Glenn L McGrath38c85512000-09-18 09:52:03 +000031 int i, count=1;
Erik Andersen330fd2b2000-05-19 05:35:19 +000032
Matt Kraai3bd8bd82000-07-14 23:28:47 +000033 if (argc <= 1 || **(argv + 1) == '-')
34 usage(which_usage);
Erik Andersen330fd2b2000-05-19 05:35:19 +000035 argc--;
36
37 path_list = getenv("PATH");
38 if (!path_list)
39 path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin";
40
Pavel Roskinc389d912000-06-05 23:41:27 +000041 /* Replace colons with zeros in path_parsed and count them */
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000042 for(i=strlen(path_list); i > 0; i--)
43 if (path_list[i]==':') {
44 path_list[i]=0;
45 count++;
46 }
Pavel Roskinc389d912000-06-05 23:41:27 +000047
48 while(argc-- > 0) {
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000049 path_n = path_list;
Pavel Roskinc389d912000-06-05 23:41:27 +000050 argv++;
51 for (i = 0; i < count; i++) {
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000052 char buf[strlen(path_n)+1+strlen(*argv)];
53 strcpy (buf, path_n);
Pavel Roskinc389d912000-06-05 23:41:27 +000054 strcat (buf, "/");
55 strcat (buf, *argv);
56 if (stat (buf, &filestat) == 0
57 && filestat.st_mode & S_IXUSR)
58 {
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000059 printf ("%s\n", buf);
Pavel Roskinc389d912000-06-05 23:41:27 +000060 break;
Erik Andersen330fd2b2000-05-19 05:35:19 +000061 }
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000062 path_n += (strlen(path_n) + 1);
Erik Andersen330fd2b2000-05-19 05:35:19 +000063 }
64 }
Eric Andersenb6106152000-06-19 17:25:40 +000065 return(TRUE);
Erik Andersen330fd2b2000-05-19 05:35:19 +000066}
67
68/*
69Local Variables:
70c-file-style: "linux"
71c-basic-offset: 4
72tab-width: 4
73End:
74*/