/* vi: set sw=4 ts=4: */ /* * Which implementation for busybox * * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> * Copyright (C) 2006 Gabriel Somlo <somlo at cmu.edu> * * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. * * Based on which from debianutils */ #include "busybox.h" int which_main(int argc, char **argv); int which_main(int argc, char **argv) { int status = EXIT_SUCCESS; char *p; if (argc <= 1 || argv[1][0] == '-') { bb_show_usage(); } if (!getenv("PATH")) { setenv("PATH", "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin", 1); } while (--argc > 0) { argv++; if (strchr(*argv, '/')) { if (execable_file(*argv)) { puts(*argv); continue; } } else { p = find_execable(*argv); if (p) { puts(p); free(p); continue; } } status = EXIT_FAILURE; } fflush_stdout_and_exit(status); }