/*
- * Copyright (C) 2004-2009 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2004-2009 Kay Sievers <kay@vrfy.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stddef.h>
#include <ctype.h>
-#include <stdarg.h>
#include <unistd.h>
#include <dirent.h>
#include <errno.h>
#include <getopt.h>
#include <fcntl.h>
#include <sys/stat.h>
-#include <sys/types.h>
#include "udev.h"
+#include "udev-util.h"
+#include "udevadm-util.h"
-static bool skip_attribute(const char *name)
-{
- static const char const *skip[] = {
+static bool skip_attribute(const char *name) {
+ static const char* const skip[] = {
"uevent",
"dev",
"modalias",
};
unsigned int i;
- for (i = 0; i < ARRAY_SIZE(skip); i++)
- if (strcmp(name, skip[i]) == 0)
+ for (i = 0; i < ELEMENTSOF(skip); i++)
+ if (streq(name, skip[i]))
return true;
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)
-{
- size_t len;
+static void print_record(struct udev_device *device) {
const char *str;
int i;
struct udev_list_entry *list_entry;
printf("P: %s\n", udev_device_get_devpath(device));
- len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
str = udev_device_get_devnode(device);
if (str != NULL)
- printf("N: %s\n", &str[len+1]);
+ printf("N: %s\n", str + strlen("/dev/"));
i = udev_device_get_devlink_priority(device);
if (i != 0)
printf("L: %i\n", i);
- udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device)) {
- len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
- printf("S: %s\n", &udev_list_entry_get_name(list_entry)[len+1]);
- }
+ udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device))
+ printf("S: %s\n", udev_list_entry_get_name(list_entry) + strlen("/dev/"));
udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(device))
printf("E: %s=%s\n",
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)
if (export) {
if (prefix == NULL)
prefix = "INFO_";
- printf("%sMAJOR=%d\n"
- "%sMINOR=%d\n",
+ printf("%sMAJOR=%u\n"
+ "%sMINOR=%u\n",
prefix, major(statbuf.st_dev),
prefix, minor(statbuf.st_dev));
} else
- printf("%d:%d\n", major(statbuf.st_dev), minor(statbuf.st_dev));
+ printf("%u:%u\n", major(statbuf.st_dev), minor(statbuf.st_dev));
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)
-{
- char filename[UTIL_PATH_SIZE];
+static void cleanup_db(struct udev *udev) {
DIR *dir;
- util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/queue.bin", NULL);
- unlink(filename);
+ unlink("/run/udev/queue.bin");
- util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/data", NULL);
- dir = opendir(filename);
+ dir = opendir("/run/udev/data");
if (dir != NULL) {
cleanup_dir(dir, S_ISVTX, 1);
closedir(dir);
}
- util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/links", NULL);
- dir = opendir(filename);
+ dir = opendir("/run/udev/links");
if (dir != NULL) {
cleanup_dir(dir, 0, 2);
closedir(dir);
}
- util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/tags", NULL);
- dir = opendir(filename);
+ dir = opendir("/run/udev/tags");
if (dir != NULL) {
cleanup_dir(dir, 0, 2);
closedir(dir);
}
- util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/watch", NULL);
- dir = opendir(filename);
+ dir = opendir("/run/udev/static_node-tags");
if (dir != NULL) {
- cleanup_dir(dir, 0, 1);
+ cleanup_dir(dir, 0, 2);
closedir(dir);
}
- util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/firmware-missing", NULL);
- dir = opendir(filename);
+ dir = opendir("/run/udev/watch");
if (dir != NULL) {
cleanup_dir(dir, 0, 1);
closedir(dir);
}
}
-static int uinfo(struct udev *udev, int argc, char *argv[])
-{
- struct udev_device *device = NULL;
+static void help(void) {
+
+ printf("%s info [OPTIONS] [DEVPATH|FILE]\n\n"
+ "Query sysfs or the udev database.\n\n"
+ " -h --help Print this message\n"
+ " --version Print version of the program\n"
+ " -q --query=TYPE Query device information:\n"
+ " name Name of device node\n"
+ " symlink Pointing to node\n"
+ " path sysfs device path\n"
+ " property The device properties\n"
+ " all All values\n"
+ " -p --path=SYSPATH sysfs 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"
+ " -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 Clean up the udev database\n"
+ , program_invocation_short_name);
+}
+
+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 path[UTIL_PATH_SIZE];
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' },
- { "run", 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' },
{}
};
enum action_type {
- ACTION_NONE,
ACTION_QUERY,
ACTION_ATTRIBUTE_WALK,
- ACTION_ROOT,
ACTION_DEVICE_ID_FILE,
- } action = ACTION_NONE;
+ } action = ACTION_QUERY;
enum query_type {
- QUERY_NONE,
QUERY_NAME,
QUERY_PATH,
QUERY_SYMLINK,
QUERY_PROPERTY,
QUERY_ALL,
- } query = QUERY_NONE;
-
- for (;;) {
- int option;
- struct stat statbuf;
-
- option = getopt_long(argc, argv, "aced:n:p:q:rxP:RVh", options, NULL);
- if (option == -1)
- break;
+ } query = QUERY_ALL;
- switch (option) {
- case 'n':
+ 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;
}
- /* remove /dev if given */
- if (strncmp(optarg, udev_get_dev_path(udev), strlen(udev_get_dev_path(udev))) != 0)
- util_strscpyl(name, sizeof(name), udev_get_dev_path(udev), "/", optarg, NULL);
- else
- util_strscpy(name, sizeof(name), optarg);
- util_remove_trailing_chars(name, '/');
- if (stat(name, &statbuf) < 0) {
+
+ device = find_device(udev, optarg, "/dev/");
+ if (device == NULL) {
fprintf(stderr, "device node not found\n");
- rc = 2;
- goto exit;
- } else {
- char type;
-
- if (S_ISBLK(statbuf.st_mode)) {
- type = 'b';
- } else if (S_ISCHR(statbuf.st_mode)) {
- type = 'c';
- } else {
- fprintf(stderr, "device node has wrong file type\n");
- rc = 2;
- goto exit;
- }
- device = udev_device_new_from_devnum(udev, type, statbuf.st_rdev);
- 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;
}
- /* add sys dir if needed */
- if (strncmp(optarg, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0)
- util_strscpyl(path, sizeof(path), udev_get_sys_path(udev), optarg, NULL);
- else
- util_strscpy(path, sizeof(path), optarg);
- util_remove_trailing_chars(path, '/');
- device = udev_device_new_from_syspath(udev, path);
+
+ device = find_device(udev, optarg, "/sys");
if (device == NULL) {
- fprintf(stderr, "device path not found\n");
- rc = 2;
- goto exit;
+ fprintf(stderr, "syspath not found\n");
+ return 2;
}
break;
case 'q':
action = ACTION_QUERY;
- if (strcmp(optarg, "property") == 0 || strcmp(optarg, "env") == 0) {
+ if (streq(optarg, "property") || streq(optarg, "env"))
query = QUERY_PROPERTY;
- } else if (strcmp(optarg, "name") == 0) {
+ else if (streq(optarg, "name"))
query = QUERY_NAME;
- } else if (strcmp(optarg, "symlink") == 0) {
+ else if (streq(optarg, "symlink"))
query = QUERY_SYMLINK;
- } else if (strcmp(optarg, "path") == 0) {
+ else if (streq(optarg, "path"))
query = QUERY_PATH;
- } else if (strcmp(optarg, "all") == 0) {
+ 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':
- if (action == ACTION_NONE)
- action = ACTION_ROOT;
root = true;
break;
- case 'R':
- printf("%s\n", udev_get_run_path(udev));
- goto exit;
case 'd':
action = ACTION_DEVICE_ID_FILE;
- util_strscpy(name, sizeof(name), optarg);
+ strscpy(name, sizeof(name), optarg);
break;
case 'a':
action = ACTION_ATTRIBUTE_WALK;
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("Usage: udevadm info OPTIONS\n"
- " --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"
- " 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\n");
- goto exit;
+ help();
+ return 0;
default:
- rc = 1;
- goto exit;
+ return 1;
}
- }
switch (action) {
case ACTION_QUERY:
- if (device == NULL) {
- fprintf(stderr, "query needs a valid device specified by --path= or --name=\n");
- rc = 4;
- goto exit;
+ if (!device) {
+ if (!argv[optind]) {
+ help();
+ 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");
+ return 4;
+ }
}
switch(query) {
if (node == NULL) {
fprintf(stderr, "no device node found\n");
- rc = 5;
- goto exit;
+ return 5;
}
- if (root) {
+ if (root)
printf("%s\n", udev_device_get_devnode(device));
- } else {
- size_t len = strlen(udev_get_dev_path(udev));
-
- printf("%s\n", &udev_device_get_devnode(device)[len+1]);
- }
+ else
+ printf("%s\n", udev_device_get_devnode(device) + strlen("/dev/"));
break;
}
case QUERY_SYMLINK:
list_entry = udev_device_get_devlinks_list_entry(device);
while (list_entry != NULL) {
- if (root) {
+ if (root)
printf("%s", udev_list_entry_get_name(list_entry));
- } else {
- size_t len;
-
- len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
- printf("%s", &udev_list_entry_get_name(list_entry)[len+1]);
- }
+ else
+ printf("%s", udev_list_entry_get_name(list_entry) + strlen("/dev/"));
list_entry = udev_list_entry_get_next(list_entry);
if (list_entry != NULL)
printf(" ");
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:
- if (device == NULL) {
- fprintf(stderr, "query needs a valid device specified by --path= or --name=\n");
- rc = 4;
- goto exit;
+ if (!device && argv[optind]) {
+ device = find_device(udev, argv[optind], NULL);
+ if (!device) {
+ fprintf(stderr, "Unknown device, absolute path in /dev/ or /sys expected.\n");
+ return 4;
+ }
+ }
+ if (!device) {
+ fprintf(stderr, "Unknown device, --name=, --path=, or absolute path in /dev/ or /sys expected.\n");
+ return 4;
}
print_device_chain(device);
break;
case ACTION_DEVICE_ID_FILE:
if (stat_device(name, export, export_prefix) != 0)
- rc = 1;
- break;
- case ACTION_ROOT:
- printf("%s\n", udev_get_dev_path(udev));
- break;
- default:
- fprintf(stderr, "missing option\n");
- rc = 1;
+ return 1;
break;
}
-exit:
- udev_device_unref(device);
- return rc;
+ return 0;
}
const struct udevadm_cmd udevadm_info = {
.name = "info",
.cmd = uinfo,
- .help = "query sysfs or the udev database",
+ .help = "Query sysfs or the udev database",
};
~ianmdlvl / elogind.git / blobdiff