blob: b2acd78def36ed40c5f065d98ef1596a30b1bd3e [file] [log] [blame]
Erik Andersen330fd2b2000-05-19 05:35:19 +00001/* vi: set sw=4 ts=4: */
2/*
3 * Which implementation for busybox
4 *
Eric Andersen8ec10a92001-01-27 09:33:39 +00005 * Copyright (C) 1999,2000,2001 by Lineo, inc.
Erik Andersen330fd2b2000-05-19 05:35:19 +00006 * 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 Andersen8d4c3972001-03-09 21:28:09 +000024/* getopt not needed */
Eric Andersened3ef502001-01-27 08:24:39 +000025#include <string.h>
Erik Andersen330fd2b2000-05-19 05:35:19 +000026#include <stdio.h>
Eric Andersened3ef502001-01-27 08:24:39 +000027#include <stdlib.h>
Eric Andersencbe31da2001-02-20 06:14:08 +000028#include "busybox.h"
Erik Andersen330fd2b2000-05-19 05:35:19 +000029
Erik Andersen330fd2b2000-05-19 05:35:19 +000030extern int which_main(int argc, char **argv)
31{
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000032 char *path_list, *path_n;
Pavel Roskinc389d912000-06-05 23:41:27 +000033 struct stat filestat;
Matt Kraai768a2342000-11-18 01:16:43 +000034 int i, count=1, found, status = EXIT_SUCCESS;
Erik Andersen330fd2b2000-05-19 05:35:19 +000035
Matt Kraai3bd8bd82000-07-14 23:28:47 +000036 if (argc <= 1 || **(argv + 1) == '-')
Eric Andersen67991cf2001-02-14 21:23:06 +000037 show_usage();
Erik Andersen330fd2b2000-05-19 05:35:19 +000038 argc--;
39
40 path_list = getenv("PATH");
41 if (!path_list)
42 path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin";
43
Pavel Roskinc389d912000-06-05 23:41:27 +000044 /* Replace colons with zeros in path_parsed and count them */
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000045 for(i=strlen(path_list); i > 0; i--)
46 if (path_list[i]==':') {
47 path_list[i]=0;
48 count++;
49 }
Pavel Roskinc389d912000-06-05 23:41:27 +000050
51 while(argc-- > 0) {
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000052 path_n = path_list;
Pavel Roskinc389d912000-06-05 23:41:27 +000053 argv++;
Matt Kraai768a2342000-11-18 01:16:43 +000054 found = 0;
Pavel Roskinc389d912000-06-05 23:41:27 +000055 for (i = 0; i < count; i++) {
Eric Andersen044a72d2001-05-04 22:04:24 +000056 char *buf;
Eric Andersen8d351342001-05-07 22:45:06 +000057 buf = concat_path_file(path_n, *argv);
Pavel Roskinc389d912000-06-05 23:41:27 +000058 if (stat (buf, &filestat) == 0
59 && filestat.st_mode & S_IXUSR)
60 {
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000061 printf ("%s\n", buf);
Matt Kraai768a2342000-11-18 01:16:43 +000062 found = 1;
Pavel Roskinc389d912000-06-05 23:41:27 +000063 break;
Erik Andersen330fd2b2000-05-19 05:35:19 +000064 }
Eric Andersen8d351342001-05-07 22:45:06 +000065 free(buf);
Glenn L McGrath63dde9d2000-09-18 09:37:40 +000066 path_n += (strlen(path_n) + 1);
Erik Andersen330fd2b2000-05-19 05:35:19 +000067 }
Matt Kraai768a2342000-11-18 01:16:43 +000068 if (!found)
69 status = EXIT_FAILURE;
Erik Andersen330fd2b2000-05-19 05:35:19 +000070 }
Matt Kraai768a2342000-11-18 01:16:43 +000071 return status;
Erik Andersen330fd2b2000-05-19 05:35:19 +000072}
73
74/*
75Local Variables:
76c-file-style: "linux"
77c-basic-offset: 4
78tab-width: 4
79End:
80*/