[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/debianutils/which.c b/ap/app/busybox/src/debianutils/which.c
new file mode 100644
index 0000000..15fd598
--- /dev/null
+++ b/ap/app/busybox/src/debianutils/which.c
@@ -0,0 +1,99 @@
+/* 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 GPLv2 or later, see file LICENSE in this source tree.
+ *
+ * Based on which from debianutils
+ */
+
+//usage:#define which_trivial_usage
+//usage: "[COMMAND]..."
+//usage:#define which_full_usage "\n\n"
+//usage: "Locate a COMMAND"
+//usage:
+//usage:#define which_example_usage
+//usage: "$ which login\n"
+//usage: "/bin/login\n"
+
+#include "libbb.h"
+
+int which_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int which_main(int argc UNUSED_PARAM, char **argv)
+{
+ IF_DESKTOP(int opt;)
+ int status = EXIT_SUCCESS;
+ char *path;
+ char *p;
+
+ opt_complementary = "-1"; /* at least one argument */
+ IF_DESKTOP(opt =) getopt32(argv, "a");
+ argv += optind;
+
+ /* 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=" */
+ }
+
+ do {
+#if ENABLE_DESKTOP
+/* Much bloat just to support -a */
+ if (strchr(*argv, '/')) {
+ if (execable_file(*argv)) {
+ puts(*argv);
+ continue;
+ }
+ status = EXIT_FAILURE;
+ } else {
+ 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);
+ continue;
+ }
+ }
+ status = EXIT_FAILURE;
+#endif
+ } while (*(++argv) != NULL);
+
+ fflush_stdout_and_exit(status);
+}