/* vi: set sw=4 ts=4: *//* * Which implementation for busybox * * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen * Copyright (C) 1999,2000,2001 by Erik Andersen <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 * *//* getopt not needed */#include <string.h>#include <stdio.h>#include <stdlib.h>#include "busybox.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) == '-')		show_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;			buf = concat_path_file(path_n, *argv);			if (stat (buf, &filestat) == 0			    && filestat.st_mode & S_IXUSR)			{				puts(buf);				found = 1;				break;			}			free(buf);			path_n += (strlen(path_n) + 1);		}		if (!found)			status = EXIT_FAILURE;	}	return status;}/*Local Variables:c-file-style: "linux"c-basic-offset: 4tab-width: 4End:*/