63dde9d4ce
buf[PATH_MAX] now defined using strlen to the exact size to be used. removed output that was displayed if which didnt find the command, this makes itmatch the behaviour of GNU's which. These modifications result in a slight size decrease.
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Which implementation for busybox
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*
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* Copyright (C) 2000 by Lineo, inc.
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* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "internal.h"
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#include <stdio.h>
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extern int which_main(int argc, char **argv)
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{
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char *path_list, *path_n;
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struct stat filestat;
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int i, count=0;
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if (argc <= 1 || **(argv + 1) == '-')
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usage(which_usage);
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argc--;
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path_list = getenv("PATH");
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if (!path_list)
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path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin";
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/* Replace colons with zeros in path_parsed and count them */
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for(i=strlen(path_list); i > 0; i--)
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if (path_list[i]==':') {
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path_list[i]=0;
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count++;
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}
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while(argc-- > 0) {
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path_n = path_list;
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argv++;
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for (i = 0; i < count; i++) {
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char buf[strlen(path_n)+1+strlen(*argv)];
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strcpy (buf, path_n);
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strcat (buf, "/");
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strcat (buf, *argv);
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if (stat (buf, &filestat) == 0
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&& filestat.st_mode & S_IXUSR)
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{
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printf ("%s\n", buf);
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break;
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}
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path_n += (strlen(path_n) + 1);
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}
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}
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return(TRUE);
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}
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/*
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Local Variables:
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c-file-style: "linux"
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c-basic-offset: 4
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tab-width: 4
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End:
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*/
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