diff options
Diffstat (limited to 'debianutils')
-rw-r--r-- | debianutils/which.c | 64 |
1 files changed, 52 insertions, 12 deletions
diff --git a/debianutils/which.c b/debianutils/which.c index 5ab6719..41a864c 100644 --- a/debianutils/which.c +++ b/debianutils/which.c @@ -13,30 +13,69 @@ #include "libbb.h" int which_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int which_main(int argc, char **argv) +int which_main(int argc ATTRIBUTE_UNUSED, char **argv) { + USE_DESKTOP(int opt;) int status = EXIT_SUCCESS; + char *path; char *p; - if (argc <= 1 || argv[1][0] == '-') { - bb_show_usage(); - } + opt_complementary = "-1"; /* at least one argument */ + USE_DESKTOP(opt =) getopt32(argv, "a"); + argv += optind; - /* This matches what is seen on e.g. ubuntu - * "which" there is a shell script */ - if (!getenv("PATH")) { - putenv((char*)bb_PATH_root_path); + /* This matches what is seen on e.g. ubuntu. + * "which" there is a shell script. */ + path = getenv("PATH"); + if (!path) { + path = (char*)bb_PATH_root_path; + putenv(path); + path += 5; /* skip "PATH=" */ } - while (--argc > 0) { - argv++; + do { +#if ENABLE_DESKTOP +/* Much bloat just to support -a */ if (strchr(*argv, '/')) { if (execable_file(*argv)) { puts(*argv); continue; } + status = EXIT_FAILURE; } else { - p = find_execable(*argv); + char *path2 = xstrdup(path); + char *tmp = path2; + + p = find_execable(*argv, &tmp); + if (!p) + status = EXIT_FAILURE; + else { + print: + puts(p); + free(p); + if (opt) { + /* -a: show matches in all PATH components */ + if (tmp) { + p = find_execable(*argv, &tmp); + if (p) + goto print; + } + } + } + free(path2); + } +#else +/* Just ignoring -a */ + if (strchr(*argv, '/')) { + if (execable_file(*argv)) { + puts(*argv); + continue; + } + } else { + char *path2 = xstrdup(path); + char *tmp = path2; + p = find_execable(*argv, &tmp); + free(path2); if (p) { puts(p); free(p); @@ -44,7 +83,8 @@ int which_main(int argc, char **argv) } } status = EXIT_FAILURE; - } +#endif + } while (*(++argv) != NULL); fflush_stdout_and_exit(status); } |