#include <sys/types.h>
#include "udev.h"
+#include "udev-util.h"
+#include "udevadm-util.h"
-static bool skip_attribute(const char *name)
-{
+static bool skip_attribute(const char *name) {
static const char* const skip[] = {
"uevent",
"dev",
return false;
}
-static void print_all_attributes(struct udev_device *device, const char *key)
-{
+static void print_all_attributes(struct udev_device *device, const char *key) {
struct udev_list_entry *sysattr;
udev_list_entry_foreach(sysattr, udev_device_get_sysattr_list_entry(device)) {
printf("\n");
}
-static int print_device_chain(struct udev_device *device)
-{
+static int print_device_chain(struct udev_device *device) {
struct udev_device *device_parent;
const char *str;
return 0;
}
-static void print_record(struct udev_device *device)
-{
+static void print_record(struct udev_device *device) {
const char *str;
int i;
struct udev_list_entry *list_entry;
printf("\n");
}
-static int stat_device(const char *name, bool export, const char *prefix)
-{
+static int stat_device(const char *name, bool export, const char *prefix) {
struct stat statbuf;
if (stat(name, &statbuf) != 0)
return 0;
}
-static int export_devices(struct udev *udev)
-{
+static int export_devices(struct udev *udev) {
struct udev_enumerate *udev_enumerate;
struct udev_list_entry *list_entry;
return 0;
}
-static void cleanup_dir(DIR *dir, mode_t mask, int depth)
-{
+static void cleanup_dir(DIR *dir, mode_t mask, int depth) {
struct dirent *dent;
if (depth <= 0)
}
}
-static void cleanup_db(struct udev *udev)
-{
+static void cleanup_db(struct udev *udev) {
DIR *dir;
unlink("/run/udev/queue.bin");
}
}
-static struct udev_device *find_device(struct udev *udev, const char *id, const char *prefix)
-{
- char name[UTIL_PATH_SIZE];
-
- if (prefix && !startswith(id, prefix)) {
- strscpyl(name, sizeof(name), prefix, id, NULL);
- id = name;
- }
-
- if (startswith(id, "/dev/")) {
- struct stat statbuf;
- char type;
-
- if (stat(id, &statbuf) < 0)
- return NULL;
-
- if (S_ISBLK(statbuf.st_mode))
- type = 'b';
- else if (S_ISCHR(statbuf.st_mode))
- type = 'c';
- else
- return NULL;
-
- return udev_device_new_from_devnum(udev, type, statbuf.st_rdev);
- } else if (startswith(id, "/sys/"))
- return udev_device_new_from_syspath(udev, id);
- else
- return NULL;
-}
-
-static int uinfo(struct udev *udev, int argc, char *argv[])
-{
- struct udev_device *device = NULL;
+static int uinfo(struct udev *udev, int argc, char *argv[]) {
+ _cleanup_udev_device_unref_ struct udev_device *device = NULL;
bool root = 0;
bool export = 0;
const char *export_prefix = NULL;
char name[UTIL_PATH_SIZE];
struct udev_list_entry *list_entry;
- int rc = 0;
+ int c;
static const struct option options[] = {
- { "name", required_argument, NULL, 'n' },
- { "path", required_argument, NULL, 'p' },
- { "query", required_argument, NULL, 'q' },
- { "attribute-walk", no_argument, NULL, 'a' },
- { "cleanup-db", no_argument, NULL, 'c' },
- { "export-db", no_argument, NULL, 'e' },
- { "root", no_argument, NULL, 'r' },
+ { "name", required_argument, NULL, 'n' },
+ { "path", required_argument, NULL, 'p' },
+ { "query", required_argument, NULL, 'q' },
+ { "attribute-walk", no_argument, NULL, 'a' },
+ { "cleanup-db", no_argument, NULL, 'c' },
+ { "export-db", no_argument, NULL, 'e' },
+ { "root", no_argument, NULL, 'r' },
{ "device-id-of-file", required_argument, NULL, 'd' },
- { "export", no_argument, NULL, 'x' },
- { "export-prefix", required_argument, NULL, 'P' },
- { "version", no_argument, NULL, 'V' },
- { "help", no_argument, NULL, 'h' },
+ { "export", no_argument, NULL, 'x' },
+ { "export-prefix", required_argument, NULL, 'P' },
+ { "version", no_argument, NULL, 'V' },
+ { "help", no_argument, NULL, 'h' },
{}
};
static const char *usage =
- "Usage: udevadm info OPTIONS\n"
- " --query=<type> query device information:\n"
+ "Usage: udevadm info [OPTIONS] [DEVPATH|FILE]\n"
+ " -q,--query=TYPE query device information:\n"
" name name of device node\n"
" symlink pointing to node\n"
" path sys device path\n"
" property the device properties\n"
" all all values\n"
- " --path=<syspath> sys device path used for query or attribute walk\n"
- " --name=<name> node or symlink name used for query or attribute walk\n"
- " --root prepend dev directory to path names\n"
- " --attribute-walk print all key matches while walking along the chain\n"
+ " -p,--path=SYSPATH sys device path used for query or attribute walk\n"
+ " -n,--name=NAME node or symlink name used for query or attribute walk\n"
+ " -r,--root prepend dev directory to path names\n"
+ " -a,--attribute-walk print all key matches walking along the chain\n"
" of parent devices\n"
- " --device-id-of-file=<file> print major:minor of device containing this file\n"
- " --export export key/value pairs\n"
- " --export-prefix export the key name with a prefix\n"
- " --export-db export the content of the udev database\n"
- " --cleanup-db cleanup the udev database\n"
- " --help\n";
+ " -d,--device-id-of-file=FILE print major:minor of device containing this file\n"
+ " -x,--export export key/value pairs\n"
+ " -P,--export-prefix export the key name with a prefix\n"
+ " -e,--export-db export the content of the udev database\n"
+ " -c,--cleanup-db cleanup the udev database\n"
+ " --version print version of the program\n"
+ " -h,--help print this message\n";
enum action_type {
ACTION_QUERY,
QUERY_ALL,
} query = QUERY_ALL;
- for (;;) {
- int option;
-
- option = getopt_long(argc, argv, "aced:n:p:q:rxP:RVh", options, NULL);
- if (option == -1)
- break;
-
- switch (option) {
+ while ((c = getopt_long(argc, argv, "aced:n:p:q:rxP:RVh", options, NULL)) >= 0)
+ switch (c) {
case 'n': {
if (device != NULL) {
fprintf(stderr, "device already specified\n");
- rc = 2;
- goto exit;
+ return 2;
}
device = find_device(udev, optarg, "/dev/");
if (device == NULL) {
fprintf(stderr, "device node not found\n");
- rc = 2;
- goto exit;
+ return 2;
}
break;
}
case 'p':
if (device != NULL) {
fprintf(stderr, "device already specified\n");
- rc = 2;
- goto exit;
+ return 2;
}
device = find_device(udev, optarg, "/sys");
if (device == NULL) {
fprintf(stderr, "syspath not found\n");
- rc = 2;
- goto exit;
+ return 2;
}
break;
case 'q':
action = ACTION_QUERY;
- if (streq(optarg, "property") || streq(optarg, "env")) {
+ if (streq(optarg, "property") || streq(optarg, "env"))
query = QUERY_PROPERTY;
- } else if (streq(optarg, "name")) {
+ else if (streq(optarg, "name"))
query = QUERY_NAME;
- } else if (streq(optarg, "symlink")) {
+ else if (streq(optarg, "symlink"))
query = QUERY_SYMLINK;
- } else if (streq(optarg, "path")) {
+ else if (streq(optarg, "path"))
query = QUERY_PATH;
- } else if (streq(optarg, "all")) {
+ else if (streq(optarg, "all"))
query = QUERY_ALL;
- } else {
+ else {
fprintf(stderr, "unknown query type\n");
- rc = 3;
- goto exit;
+ return 3;
}
break;
case 'r':
break;
case 'e':
export_devices(udev);
- goto exit;
+ return 0;
case 'c':
cleanup_db(udev);
- goto exit;
+ return 0;
case 'x':
export = true;
break;
break;
case 'V':
printf("%s\n", VERSION);
- goto exit;
+ return 0;
case 'h':
printf("%s\n", usage);
- goto exit;
+ return 0;
default:
- rc = 1;
- goto exit;
+ return 1;
}
- }
switch (action) {
case ACTION_QUERY:
if (!device) {
if (!argv[optind]) {
fprintf(stderr, "%s\n", usage);
- rc = 2;
- goto exit;
+ return 2;
}
device = find_device(udev, argv[optind], NULL);
if (!device) {
fprintf(stderr, "Unknown device, --name=, --path=, or absolute path in /dev/ or /sys expected.\n");
- rc = 4;
- goto exit;
+ return 4;
}
}
if (node == NULL) {
fprintf(stderr, "no device node found\n");
- rc = 5;
- goto exit;
+ return 5;
}
if (root)
break;
case QUERY_PATH:
printf("%s\n", udev_device_get_devpath(device));
- goto exit;
+ return 0;
case QUERY_PROPERTY:
list_entry = udev_device_get_properties_list_entry(device);
while (list_entry != NULL) {
print_record(device);
break;
default:
- fprintf(stderr, "unknown query type\n");
- break;
+ assert_not_reached("unknown query type");
}
break;
case ACTION_ATTRIBUTE_WALK:
device = find_device(udev, argv[optind], NULL);
if (!device) {
fprintf(stderr, "Unknown device, absolute path in /dev/ or /sys expected.\n");
- rc = 4;
- goto exit;
+ return 4;
}
}
if (!device) {
fprintf(stderr, "Unknown device, --name=, --path=, or absolute path in /dev/ or /sys expected.\n");
- rc = 4;
- goto exit;
+ return 4;
}
print_device_chain(device);
break;
case ACTION_DEVICE_ID_FILE:
if (stat_device(name, export, export_prefix) != 0)
- rc = 1;
+ return 1;
break;
}
-exit:
- udev_device_unref(device);
- return rc;
+ return 0;
}
const struct udevadm_cmd udevadm_info = {
~ianmdlvl / elogind.git / blobdiff