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/* vi: set sw=4 ts=4: */
/*
* Which implementation for busybox
*
* Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.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
*
* Based on which from debianutils
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "busybox.h"
extern int which_main(int argc, char **argv)
{
char *path_list;
int i, count=1, status = EXIT_SUCCESS;
if (argc <= 1 || **(argv + 1) == '-') {
bb_show_usage();
}
argc--;
path_list = getenv("PATH");
if (path_list != NULL) {
for (i=strlen(path_list); i > 0; i--) {
if (path_list[i]==':') {
path_list[i]=0;
count++;
}
}
} else {
path_list = "/bin\0/sbin\0/usr/bin\0/usr/sbin\0/usr/local/bin";
count = 5;
}
while (argc-- > 0) {
char *buf;
char *path_n;
char found = 0;
argv++;
/*
* Check if we were given the full path, first.
* Otherwise see if the file exists in our $PATH.
*/
path_n = path_list;
buf = *argv;
if (access(buf, X_OK) == 0) {
found = 1;
} else {
for (i = 0; i < count; i++) {
buf = concat_path_file(path_n, *argv);
if (access(buf, X_OK) == 0) {
found = 1;
break;
}
free(buf);
path_n += (strlen(path_n) + 1);
}
}
if (found) {
puts(buf);
} else {
status = EXIT_FAILURE;
}
}
return status;
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
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