/*
- * udevinfo.c - fetches stored device information or sysfs attributes
- *
- * Copyright (C) 2004-2005 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2004-2006 Kay Sievers <kay.sievers@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 the
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include <unistd.h>
#include <dirent.h>
#include <errno.h>
+#include <getopt.h>
+#include <sys/stat.h>
+#include <sys/types.h>
#include "udev.h"
dir = opendir(path);
if (dir != NULL) {
for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+ struct stat statbuf;
+ char filename[PATH_SIZE];
char *attr_value;
char value[NAME_SIZE];
size_t len;
+ if (dent->d_name[0] == '.')
+ continue;
+
+ if (strcmp(dent->d_name, "uevent") == 0)
+ continue;
+
+ strlcpy(filename, path, sizeof(filename));
+ strlcat(filename, "/", sizeof(filename));
+ strlcat(filename, dent->d_name, sizeof(filename));
+ if (lstat(filename, &statbuf) != 0)
+ continue;
+ if (S_ISLNK(statbuf.st_mode))
+ continue;
+
attr_value = sysfs_attr_get_value(devpath, dent->d_name);
if (attr_value == NULL)
continue;
len = strlcpy(value, attr_value, sizeof(value));
+ if(len >= sizeof(value))
+ len = sizeof(value) - 1;
dbg("attr '%s'='%s'(%zi)", dent->d_name, value, len);
/* remove trailing newlines */
continue;
}
- replace_untrusted_chars(value);
+ replace_chars(value, ALLOWED_CHARS_INPUT);
printf(" %s{%s}==\"%s\"\n", key, dent->d_name, value);
}
}
{
struct sysfs_device *dev;
+ dev = sysfs_device_get(devpath);
+ if (dev == NULL)
+ return -1;
+
printf("\n"
"Udevinfo starts with the device specified by the devpath and then\n"
"walks up the chain of parent devices. It prints for every device\n"
"and the attributes from one single parent device.\n"
"\n");
- dev = sysfs_device_get(devpath);
- if (dev == NULL)
- return -1;
-
printf(" looking at device '%s':\n", dev->devpath);
printf(" KERNEL==\"%s\"\n", dev->kernel);
printf(" SUBSYSTEM==\"%s\"\n", dev->subsystem);
break;
printf(" looking at parent device '%s':\n", dev->devpath);
printf(" KERNELS==\"%s\"\n", dev->kernel);
- printf(" SUBSYTEMS==\"%s\"\n", dev->subsystem);
+ printf(" SUBSYSTEMS==\"%s\"\n", dev->subsystem);
printf(" DRIVERS==\"%s\"\n", dev->driver);
print_all_attributes(dev->devpath, "ATTRS");
printf("N: %s\n", udev->name);
list_for_each_entry(name_loop, &udev->symlink_list, node)
printf("S: %s\n", name_loop->name);
+ if (udev->link_priority != 0)
+ printf("L: %i\n", udev->link_priority);
+ if (udev->partitions != 0)
+ printf("A:%u\n", udev->partitions);
+ if (udev->ignore_remove)
+ printf("R:%u\n", udev->ignore_remove);
list_for_each_entry(name_loop, &udev->env_list, node)
printf("E: %s\n", name_loop->name);
}
-static void export_name_devpath(struct udevice *udev) {
- printf("%s=%s/%s\n", udev->dev->devpath, udev_root, udev->name);
-}
-
-static void export_record(struct udevice *udev) {
- print_record(udev);
- printf("\n");
-}
-
-static void export_db(void fnct(struct udevice *udev)) {
+static void export_db(void) {
LIST_HEAD(name_list);
struct name_entry *name_loop;
list_for_each_entry(name_loop, &name_list, node) {
struct udevice *udev_db;
- udev_db = udev_device_init();
+ udev_db = udev_device_init(NULL);
if (udev_db == NULL)
continue;
if (udev_db_get_device(udev_db, name_loop->name) == 0)
- fnct(udev_db);
+ print_record(udev_db);
+ printf("\n");
udev_device_cleanup(udev_db);
}
name_list_cleanup(&name_list);
}
+static int lookup_device_by_name(struct udevice *udev, const char *name)
+{
+ LIST_HEAD(name_list);
+ int count;
+ struct name_entry *device;
+ int rc = -1;
+
+ count = udev_db_get_devices_by_name(name, &name_list);
+ if (count <= 0)
+ goto out;
+
+ info("found %i devices for '%s'", count, name);
+
+ /* select the device that seems to match */
+ list_for_each_entry(device, &name_list, node) {
+ char filename[PATH_SIZE];
+ struct stat statbuf;
+
+ udev_device_init(udev);
+ if (udev_db_get_device(udev, device->name) != 0)
+ continue;
+ info("found db entry '%s'", device->name);
+
+ /* make sure, we don't get a link of a differnt device */
+ strlcpy(filename, udev_root, sizeof(filename));
+ strlcat(filename, "/", sizeof(filename));
+ strlcat(filename, name, sizeof(filename));
+ if (stat(filename, &statbuf) != 0)
+ continue;
+ if (major(udev->devt) > 0 && udev->devt != statbuf.st_rdev) {
+ info("skip '%s', dev_t doesn't match", udev->name);
+ continue;
+ }
+ rc = 0;
+ break;
+ }
+out:
+ name_list_cleanup(&name_list);
+ return rc;
+}
+
int main(int argc, char *argv[], char *envp[])
{
int option;
struct udevice *udev;
int root = 0;
+ static const struct option options[] = {
+ { "name", 1, NULL, 'n' },
+ { "path", 1, NULL, 'p' },
+ { "query", 1, NULL, 'q' },
+ { "attribute-walk", 0, NULL, 'a' },
+ { "export-db", 0, NULL, 'e' },
+ { "root", 0, NULL, 'r' },
+ { "version", 0, NULL, 1 }, /* -V outputs braindead format */
+ { "help", 0, NULL, 'h' },
+ {}
+ };
+
enum action_type {
ACTION_NONE,
ACTION_QUERY,
udev_config_init();
sysfs_init();
- udev = udev_device_init();
+ udev = udev_device_init(NULL);
if (udev == NULL) {
rc = 1;
goto exit;
}
- /* get command line options */
- opterr = 0;
while (1) {
- option = getopt(argc, argv, ":aden:p:q:rVh");
+ option = getopt_long(argc, argv, "aen:p:q:rVh", options, NULL);
if (option == -1)
break;
strlcpy(name, &optarg[strlen(udev_root)+1], sizeof(name));
else
strlcpy(name, optarg, sizeof(name));
- dbg("name: %s\n", name);
+ dbg("name: %s", name);
break;
case 'p':
/* remove /sys if given */
strlcpy(path, &optarg[strlen(sysfs_path)], sizeof(path));
else
strlcpy(path, optarg, sizeof(path));
- dbg("path: %s\n", path);
+ dbg("path: %s", path);
break;
case 'q':
- dbg("udev query: %s\n", optarg);
action = ACTION_QUERY;
if (strcmp(optarg, "name") == 0) {
query = QUERY_NAME;
case 'a':
action = ACTION_ATTRIBUTE_WALK;
break;
- case 'd':
- export_db(export_name_devpath);
- goto exit;
case 'e':
- export_db(export_record);
+ export_db();
+ goto exit;
+ case 1:
+ printf("%s\n", UDEV_VERSION);
goto exit;
case 'V':
printf("udevinfo, version %s\n", UDEV_VERSION);
goto exit;
case 'h':
- printf("Usage: udevinfo [-anpqrVh]\n"
- " -q TYPE query database for the specified value:\n"
- " 'name' name of device node\n"
- " 'symlink' pointing to node\n"
- " 'path' sysfs device path\n"
- " 'env' the device related imported environment\n"
- " 'all' all values\n"
+ printf("Usage: udevinfo OPTIONS\n"
+ " --query=<type> query database for the specified value:\n"
+ " name name of device node\n"
+ " symlink pointing to node\n"
+ " path sysfs device path\n"
+ " env the device related imported environment\n"
+ " all all values\n"
"\n"
- " -p PATH sysfs device path used for query or chain\n"
- " -n NAME node/symlink name used for query\n"
+ " --path=<devpath> sysfs device path used for query or chain\n"
+ " --name=<name> node or symlink name used for query\n"
"\n"
- " -r prepend to query result or print udev_root\n"
- " -a print all SYSFS_attributes along the device chain\n"
- " -e export the content of the udev database\n"
- " -V print udev version\n"
- " -h print this help text\n"
+ " --root prepend to query result or print udev_root\n"
+ " --attribute-walk print all SYSFS_attributes along the device chain\n"
+ " --export-db export the content of the udev database\n"
+ " --help print this text\n"
"\n");
goto exit;
- case ':':
- fprintf(stderr, "missing argument for '%c'\n", optopt);
- goto exit;
- case '?':
default:
- fprintf(stderr, "unrecognized option '%c'\n", optopt);
goto exit;
}
}
goto exit;
}
} else if (name[0] != '\0') {
- char devpath[PATH_SIZE];
-
- if (udev_db_lookup_name(name, devpath, sizeof(devpath)) != 0) {
+ if (lookup_device_by_name(udev, name) != 0) {
fprintf(stderr, "node name not found\n");
rc = 4;
goto exit;
}
- udev_db_get_device(udev, devpath);
} else {
- fprintf(stderr, "query needs device path(-p) or node name(-n) specified\n");
+ fprintf(stderr, "query needs --path or node --name specified\n");
rc = 4;
goto exit;
}
printf("%s\n", udev->name);
break;
case QUERY_SYMLINK:
- if (list_empty(&udev->symlink_list))
- goto exit;
- if (root)
- list_for_each_entry(name_loop, &udev->symlink_list, node)
- printf("%s/%s ", udev_root, name_loop->name);
- else
- list_for_each_entry(name_loop, &udev->symlink_list, node)
- printf("%s ", name_loop->name);
- printf("\n");
+ list_for_each_entry(name_loop, &udev->symlink_list, node) {
+ char c = name_loop->node.next != &udev->symlink_list ? ' ' : '\n';
+
+ if (root)
+ printf("%s/%s%c", udev_root, name_loop->name, c);
+ else
+ printf("%s%c", name_loop->name, c);
+ }
break;
case QUERY_PATH:
printf("%s\n", udev->dev->devpath);
break;
case ACTION_ATTRIBUTE_WALK:
if (path[0] != '\0') {
- print_device_chain(path);
+ if (print_device_chain(path) != 0) {
+ fprintf(stderr, "no valid sysfs device found\n");
+ rc = 4;
+ goto exit;
+ }
} else if (name[0] != '\0') {
- char devpath[PATH_SIZE];
-
- if (udev_db_lookup_name(name, devpath, sizeof(devpath)) != 0) {
+ if (lookup_device_by_name(udev, name) != 0) {
fprintf(stderr, "node name not found\n");
rc = 4;
goto exit;
}
- print_device_chain(devpath);
+ if (print_device_chain(udev->dev->devpath) != 0) {
+ fprintf(stderr, "no valid sysfs device found\n");
+ rc = 4;
+ goto exit;
+ }
} else {
- fprintf(stderr, "attribute walk needs device path(-p) or node name(-n) specified\n");
+ fprintf(stderr, "attribute walk needs --path or node --name specified\n");
rc = 5;
goto exit;
}
~ianmdlvl / elogind.git / blobdiff