* modinfo - retrieve module info
* Copyright (c) 2008 Pascal Bellard
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-//applet:IF_MODINFO(APPLET(modinfo, _BB_DIR_SBIN, _BB_SUID_DROP))
+//applet:IF_MODINFO(APPLET(modinfo, BB_DIR_SBIN, BB_SUID_DROP))
-//kbuild:lib-$(CONFIG_MODINFO) += modinfo.o
+//kbuild:lib-$(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
enum {
- OPT_TAGS = (1 << 6) - 1,
- OPT_F = (1 << 6), /* field name */
- OPT_0 = (1 << 7), /* \0 as separator */
+ OPT_TAGS = (1 << 12) - 1, /* shortcut count */
+ OPT_F = (1 << 12), /* field name */
+ OPT_0 = (1 << 13), /* \0 as separator */
};
struct modinfo_env {
return printf("%s%c", data, (option_mask32 & OPT_0) ? '\0' : '\n');
}
-static void modinfo(const char *path, struct modinfo_env *env)
+static void modinfo(const char *path, const char *version,
+ const struct modinfo_env *env)
{
static const char *const shortcuts[] = {
"filename",
- "description",
- "author",
"license",
+ "author",
+ "description",
+ "version",
+ "alias",
+ "srcversion",
+ "depends",
+ "uts_release",
"vermagic",
"parm",
+ "firmware",
};
size_t len;
int j, length;
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)
- return;
+ 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 = field;
- if ((1<<j) & OPT_TAGS)
- pattern = shortcuts[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) {
if (ptr == NULL) /* no occurance left, done */
break;
if (strncmp(ptr, pattern, length) == 0 && ptr[length] == '=') {
- ptr += length + 1;
- ptr += display(ptr, pattern, (1<<j) != tags);
+ /* field prefixes are 0x80 or 0x00 */
+ if ((ptr[-1] & 0x7F) == '\0') {
+ ptr += length + 1;
+ ptr += display(ptr, pattern, (1<<j) != tags);
+ }
}
++ptr;
}
//usage:#define modinfo_trivial_usage
//usage: "[-adlp0] [-F keyword] MODULE"
//usage:#define modinfo_full_usage "\n\n"
-//usage: "Options:"
-//usage: "\n -a Shortcut for '-F author'"
+//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'"
struct modinfo_env env;
char name[MODULE_NAME_LEN];
struct utsname uts;
- parser_t *p;
+ parser_t *parser;
char *colon, *tokens[2];
unsigned opts;
unsigned i;
env.field = NULL;
opt_complementary = "-1"; /* minimum one param */
- opts = getopt32(argv, "fdalvpF:0", &env.field);
+ opts = getopt32(argv, "nladvAsDumpF:0", &env.field);
env.tags = opts & OPT_TAGS ? opts & OPT_TAGS : OPT_TAGS;
argv += optind;
uname(&uts);
- p = config_open2(
- concat_path_file(
- concat_path_file(CONFIG_DEFAULT_MODULES_DIR, uts.release),
- CONFIG_DEFAULT_DEPMOD_FILE),
+ parser = config_open2(
+ xasprintf("%s/%s/%s", CONFIG_DEFAULT_MODULES_DIR, uts.release, CONFIG_DEFAULT_DEPMOD_FILE),
xfopen_for_read
);
- while (config_read(p, tokens, 2, 1, "# \t", PARSE_NORMAL)) {
+ while (config_read(parser, tokens, 2, 1, "# \t", PARSE_NORMAL)) {
colon = last_char_is(tokens[0], ':');
if (colon == NULL)
continue;
filename2modname(tokens[0], name);
for (i = 0; argv[i]; i++) {
if (fnmatch(argv[i], name, 0) == 0) {
- modinfo(tokens[0], &env);
+ 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], &env);
+ modinfo(argv[i], uts.release, &env);
}
}
+
return 0;
}