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-rw-r--r--which.c80
1 files changed, 0 insertions, 80 deletions
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1/* vi: set sw=4 ts=4: */
2/*
3 * Which implementation for busybox
4 *
5 * Copyright (C) 1999,2000,2001 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
24/* getopt not needed */
25#include <string.h>
26#include <stdio.h>
27#include <stdlib.h>
28#include "busybox.h"
29
30extern int which_main(int argc, char **argv)
31{
32 char *path_list, *path_n;
33 struct stat filestat;
34 int i, count=1, found, status = EXIT_SUCCESS;
35
36 if (argc <= 1 || **(argv + 1) == '-')
37 show_usage();
38 argc--;
39
40 path_list = getenv("PATH");
41 if (!path_list)
42 path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin";
43
44 /* Replace colons with zeros in path_parsed and count them */
45 for(i=strlen(path_list); i > 0; i--)
46 if (path_list[i]==':') {
47 path_list[i]=0;
48 count++;
49 }
50
51 while(argc-- > 0) {
52 path_n = path_list;
53 argv++;
54 found = 0;
55 for (i = 0; i < count; i++) {
56 char *buf;
57 buf = concat_path_file(path_n, *argv);
58 if (stat (buf, &filestat) == 0
59 && filestat.st_mode & S_IXUSR)
60 {
61 puts(buf);
62 found = 1;
63 break;
64 }
65 free(buf);
66 path_n += (strlen(path_n) + 1);
67 }
68 if (!found)
69 status = EXIT_FAILURE;
70 }
71 return status;
72}
73
74/*
75Local Variables:
76c-file-style: "linux"
77c-basic-offset: 4
78tab-width: 4
79End:
80*/