mirror of
https://github.com/sheumann/hush.git
synced 2024-12-23 05:29:58 +00:00
101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Which implementation for busybox
|
|
*
|
|
* Copyright (C) 2000 by Lineo, inc.
|
|
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include "internal.h"
|
|
#include <stdio.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/param.h>
|
|
|
|
|
|
extern int which_main(int argc, char **argv)
|
|
{
|
|
char *path_list, *test, *tmp, *path_parsed;
|
|
char buf[PATH_MAX];
|
|
struct stat filestat;
|
|
int count = 0;
|
|
|
|
if (argc <= 1 || **(argv + 1) == '-') {
|
|
usage("which [COMMAND ...]\n"
|
|
#ifndef BB_FEATURE_TRIVIAL_HELP
|
|
"\nLocates a COMMAND.\n"
|
|
#endif
|
|
);
|
|
}
|
|
argc--;
|
|
|
|
path_list = getenv("PATH");
|
|
if (!path_list)
|
|
path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin";
|
|
|
|
path_parsed = malloc (strlen(path_list) + 1);
|
|
strcpy (path_parsed, path_list);
|
|
|
|
/* Replace colons with zeros in path_parsed and count them */
|
|
count = 1;
|
|
test = path_parsed;
|
|
while (1) {
|
|
tmp = strchr(test, ':');
|
|
if (tmp == NULL)
|
|
break;
|
|
*tmp = 0;
|
|
test = tmp + 1;
|
|
count++;
|
|
}
|
|
|
|
|
|
while(argc-- > 0) {
|
|
int i;
|
|
int found = FALSE;
|
|
test = path_parsed;
|
|
argv++;
|
|
for (i = 0; i < count; i++) {
|
|
strcpy (buf, test);
|
|
strcat (buf, "/");
|
|
strcat (buf, *argv);
|
|
if (stat (buf, &filestat) == 0
|
|
&& filestat.st_mode & S_IXUSR)
|
|
{
|
|
found = TRUE;
|
|
break;
|
|
}
|
|
test += (strlen(test) + 1);
|
|
}
|
|
if (found == TRUE)
|
|
printf ("%s\n", buf);
|
|
else
|
|
{
|
|
printf ("which: no %s in (%s)\n", *argv, path_list);
|
|
exit (FALSE);
|
|
}
|
|
}
|
|
exit(TRUE);
|
|
}
|
|
|
|
/*
|
|
Local Variables:
|
|
c-file-style: "linux"
|
|
c-basic-offset: 4
|
|
tab-width: 4
|
|
End:
|
|
*/
|