[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/modutils/modinfo.c b/ap/app/busybox/src/modutils/modinfo.c
new file mode 100644
index 0000000..7c978d1
--- /dev/null
+++ b/ap/app/busybox/src/modutils/modinfo.c
@@ -0,0 +1,174 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * modinfo - retrieve module info
+ * Copyright (c) 2008 Pascal Bellard
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+//applet:IF_MODINFO(APPLET(modinfo, BB_DIR_SBIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_MODINFO) += modinfo.o modutils.o
+
+//config:config MODINFO
+//config: bool "modinfo"
+//config: default y
+//config: select PLATFORM_LINUX
+//config: help
+//config: Show information about a Linux Kernel module
+
+#include <fnmatch.h>
+#include <sys/utsname.h> /* uname() */
+#include "libbb.h"
+#include "modutils.h"
+
+
+enum {
+ OPT_TAGS = (1 << 12) - 1, /* shortcut count */
+ OPT_F = (1 << 12), /* field name */
+ OPT_0 = (1 << 13), /* \0 as separator */
+};
+
+struct modinfo_env {
+ char *field;
+ int tags;
+};
+
+static int display(const char *data, const char *pattern, int flag)
+{
+ if (flag) {
+ int n = printf("%s:", pattern);
+ while (n++ < 16)
+ bb_putchar(' ');
+ }
+ return printf("%s%c", data, (option_mask32 & OPT_0) ? '\0' : '\n');
+}
+
+static void modinfo(const char *path, const char *version,
+ const struct modinfo_env *env)
+{
+ static const char *const shortcuts[] = {
+ "filename",
+ "license",
+ "author",
+ "description",
+ "version",
+ "alias",
+ "srcversion",
+ "depends",
+ "uts_release",
+ "vermagic",
+ "parm",
+ "firmware",
+ };
+ size_t len;
+ int j, length;
+ char *ptr, *the_module;
+ const char *field = env->field;
+ int tags = env->tags;
+
+ if (tags & 1) { /* filename */
+ display(path, shortcuts[0], 1 != tags);
+ }
+
+ len = MAXINT(ssize_t);
+ the_module = xmalloc_open_zipped_read_close(path, &len);
+ if (!the_module) {
+ if (path[0] == '/')
+ return;
+ /* Newer depmod puts relative paths in modules.dep */
+ path = xasprintf("%s/%s/%s", CONFIG_DEFAULT_MODULES_DIR, version, path);
+ the_module = xmalloc_open_zipped_read_close(path, &len);
+ free((char*)path);
+ if (!the_module)
+ return;
+ }
+
+ if (field)
+ tags |= OPT_F;
+ for (j = 1; (1<<j) & (OPT_TAGS + OPT_F); j++) {
+ const char *pattern;
+
+ if (!((1<<j) & tags))
+ continue;
+ pattern = field;
+ if ((1<<j) & OPT_TAGS)
+ pattern = shortcuts[j];
+ length = strlen(pattern);
+ ptr = the_module;
+ while (1) {
+ ptr = memchr(ptr, *pattern, len - (ptr - (char*)the_module));
+ if (ptr == NULL) /* no occurance left, done */
+ break;
+ if (strncmp(ptr, pattern, length) == 0 && ptr[length] == '=') {
+ /* field prefixes are 0x80 or 0x00 */
+ if ((ptr[-1] & 0x7F) == '\0') {
+ ptr += length + 1;
+ ptr += display(ptr, pattern, (1<<j) != tags);
+ }
+ }
+ ++ptr;
+ }
+ }
+ free(the_module);
+}
+
+//usage:#define modinfo_trivial_usage
+//usage: "[-adlp0] [-F keyword] MODULE"
+//usage:#define modinfo_full_usage "\n\n"
+//usage: " -a Shortcut for '-F author'"
+//usage: "\n -d Shortcut for '-F description'"
+//usage: "\n -l Shortcut for '-F license'"
+//usage: "\n -p Shortcut for '-F parm'"
+//usage: "\n -F keyword Keyword to look for"
+//usage: "\n -0 Separate output with NULs"
+//usage:#define modinfo_example_usage
+//usage: "$ modinfo -F vermagic loop\n"
+
+int modinfo_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int modinfo_main(int argc UNUSED_PARAM, char **argv)
+{
+ struct modinfo_env env;
+ char name[MODULE_NAME_LEN];
+ struct utsname uts;
+ parser_t *parser;
+ char *colon, *tokens[2];
+ unsigned opts;
+ unsigned i;
+
+ env.field = NULL;
+ opt_complementary = "-1"; /* minimum one param */
+ opts = getopt32(argv, "nladvAsDumpF:0", &env.field);
+ env.tags = opts & OPT_TAGS ? opts & OPT_TAGS : OPT_TAGS;
+ argv += optind;
+
+ uname(&uts);
+ parser = config_open2(
+ xasprintf("%s/%s/%s", CONFIG_DEFAULT_MODULES_DIR, uts.release, CONFIG_DEFAULT_DEPMOD_FILE),
+ xfopen_for_read
+ );
+
+ while (config_read(parser, tokens, 2, 1, "# \t", PARSE_NORMAL)) {
+ colon = last_char_is(tokens[0], ':');
+ if (colon == NULL)
+ continue;
+ *colon = '\0';
+ filename2modname(tokens[0], name);
+ for (i = 0; argv[i]; i++) {
+ if (fnmatch(argv[i], name, 0) == 0) {
+ modinfo(tokens[0], uts.release, &env);
+ argv[i] = (char *) "";
+ }
+ }
+ }
+ if (ENABLE_FEATURE_CLEAN_UP)
+ config_close(parser);
+
+ for (i = 0; argv[i]; i++) {
+ if (argv[i][0]) {
+ modinfo(argv[i], uts.release, &env);
+ }
+ }
+
+ return 0;
+}