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/* 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 "busybox.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
extern int which_main(int argc, char **argv)
{
char *path_list, *path_n;
struct stat filestat;
int i, count=1, found, status = EXIT_SUCCESS;
if (argc <= 1 || **(argv + 1) == '-')
usage(which_usage);
argc--;
path_list = getenv("PATH");
if (!path_list)
path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin";
/* Replace colons with zeros in path_parsed and count them */
for(i=strlen(path_list); i > 0; i--)
if (path_list[i]==':') {
path_list[i]=0;
count++;
}
while(argc-- > 0) {
path_n = path_list;
argv++;
found = 0;
for (i = 0; i < count; i++) {
char buf[strlen(path_n)+1+strlen(*argv)];
strcpy (buf, path_n);
strcat (buf, "/");
strcat (buf, *argv);
if (stat (buf, &filestat) == 0
&& filestat.st_mode & S_IXUSR)
{
printf ("%s\n", buf);
found = 1;
break;
}
path_n += (strlen(path_n) + 1);
}
if (!found)
status = EXIT_FAILURE;
}
return status;
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
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