/* vi: set sw=4 ts=4: */ /* * Which implementation for busybox * * Copyright (C) 1999,2000,2001 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 <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[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: */