mirror of
https://github.com/sheumann/hush.git
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f592aa36f3
real support (with CONFIG_DESKTOP=y): 120+ bytes: text data bss dec hex filename 807958 624 7036 815618 c7202 busybox_old 808085 624 7036 815745 c7281 busybox_unstripped "fake" support (with CONFIG_DESKTOP unset): ~45 bytes: text data bss dec hex filename 797790 611 6996 805397 c4a15 busybox_old 797834 611 6996 805441 c4a41 busybox_unstripped
91 lines
1.8 KiB
C
91 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) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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* Copyright (C) 2006 Gabriel Somlo <somlo at cmu.edu>
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*
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* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
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*
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* Based on which from debianutils
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*/
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#include "libbb.h"
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int which_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int which_main(int argc ATTRIBUTE_UNUSED, char **argv)
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{
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USE_DESKTOP(int opt;)
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int status = EXIT_SUCCESS;
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char *path;
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char *p;
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opt_complementary = "-1"; /* at least one argument */
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USE_DESKTOP(opt =) getopt32(argv, "a");
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argv += optind;
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/* This matches what is seen on e.g. ubuntu.
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* "which" there is a shell script. */
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path = getenv("PATH");
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if (!path) {
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path = (char*)bb_PATH_root_path;
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putenv(path);
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path += 5; /* skip "PATH=" */
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}
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do {
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#if ENABLE_DESKTOP
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/* Much bloat just to support -a */
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if (strchr(*argv, '/')) {
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if (execable_file(*argv)) {
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puts(*argv);
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continue;
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}
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status = EXIT_FAILURE;
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} else {
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char *path2 = xstrdup(path);
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char *tmp = path2;
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p = find_execable(*argv, &tmp);
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if (!p)
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status = EXIT_FAILURE;
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else {
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print:
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puts(p);
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free(p);
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if (opt) {
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/* -a: show matches in all PATH components */
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if (tmp) {
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p = find_execable(*argv, &tmp);
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if (p)
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goto print;
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}
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}
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}
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free(path2);
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}
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#else
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/* Just ignoring -a */
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if (strchr(*argv, '/')) {
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if (execable_file(*argv)) {
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puts(*argv);
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continue;
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}
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} else {
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char *path2 = xstrdup(path);
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char *tmp = path2;
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p = find_execable(*argv, &tmp);
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free(path2);
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if (p) {
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puts(p);
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free(p);
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continue;
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}
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}
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status = EXIT_FAILURE;
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#endif
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} while (*(++argv) != NULL);
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fflush_stdout_and_exit(status);
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}
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