It turns out that DODMALLOC was broken when I reorganized busybox.h
[oweals/busybox.git] / findutils / which.c
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 #include <string.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include "busybox.h"
28
29 extern int which_main(int argc, char **argv)
30 {
31         char *path_list, *path_n;
32         struct stat filestat;
33         int i, count=1, found, status = EXIT_SUCCESS;
34
35         if (argc <= 1 || **(argv + 1) == '-')
36                 show_usage();
37         argc--;
38
39         path_list = getenv("PATH");
40         if (!path_list)
41                 path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin";
42
43         /* Replace colons with zeros in path_parsed and count them */
44         for(i=strlen(path_list); i > 0; i--) 
45                 if (path_list[i]==':') {
46                         path_list[i]=0;
47                         count++;
48                 }
49
50         while(argc-- > 0) { 
51                 path_n = path_list;
52                 argv++;
53                 found = 0;
54                 for (i = 0; i < count; i++) {
55                         char buf[strlen(path_n)+1+strlen(*argv)];
56                         strcpy (buf, path_n);
57                         strcat (buf, "/");
58                         strcat (buf, *argv);
59                         if (stat (buf, &filestat) == 0
60                             && filestat.st_mode & S_IXUSR)
61                         {
62                                 printf ("%s\n", buf);
63                                 found = 1;
64                                 break;
65                         }
66                         path_n += (strlen(path_n) + 1);
67                 }
68                 if (!found)
69                         status = EXIT_FAILURE;
70         }
71         return status;
72 }
73
74 /*
75 Local Variables:
76 c-file-style: "linux"
77 c-basic-offset: 4
78 tab-width: 4
79 End:
80 */