* udev_device_get_devnum:
* @udev_device: udev device
*
- * Returns: the device major/minor number.
+ * Get the device major/minor number.
+ *
+ * Returns: the dev_t number.
**/
_public_ dev_t udev_device_get_devnum(struct udev_device *udev_device)
{
* udev_device_get_driver:
* @udev_device: udev device
*
- * Returns: the driver string, or #NULL if there is no driver attached.
+ * Get the kernel driver name.
+ *
+ * Returns: the driver name string, or #NULL if there is no driver attached.
**/
_public_ const char *udev_device_get_driver(struct udev_device *udev_device)
{
return udev_device->subsystem;
}
/* implicit names */
- if (strncmp(udev_device->devpath, "/module/", 8) == 0) {
+ if (startswith(udev_device->devpath, "/module/")) {
udev_device_set_subsystem(udev_device, "module");
return udev_device->subsystem;
}
udev_device_set_subsystem(udev_device, "drivers");
return udev_device->subsystem;
}
- if (strncmp(udev_device->devpath, "/subsystem/", 11) == 0 ||
- strncmp(udev_device->devpath, "/class/", 7) == 0 ||
- strncmp(udev_device->devpath, "/bus/", 5) == 0) {
+ if (startswith(udev_device->devpath, "/subsystem/") ||
+ startswith(udev_device->devpath, "/class/") ||
+ startswith(udev_device->devpath, "/bus/")) {
udev_device_set_subsystem(udev_device, "subsystem");
return udev_device->subsystem;
}
*/
void udev_device_add_property_from_string_parse(struct udev_device *udev_device, const char *property)
{
- if (strncmp(property, "DEVPATH=", 8) == 0) {
+ if (startswith(property, "DEVPATH=")) {
char path[UTIL_PATH_SIZE];
util_strscpyl(path, sizeof(path), TEST_PREFIX "/sys", &property[8], NULL);
udev_device_set_syspath(udev_device, path);
- } else if (strncmp(property, "SUBSYSTEM=", 10) == 0) {
+ } else if (startswith(property, "SUBSYSTEM=")) {
udev_device_set_subsystem(udev_device, &property[10]);
- } else if (strncmp(property, "DEVTYPE=", 8) == 0) {
+ } else if (startswith(property, "DEVTYPE=")) {
udev_device_set_devtype(udev_device, &property[8]);
- } else if (strncmp(property, "DEVNAME=", 8) == 0) {
+ } else if (startswith(property, "DEVNAME=")) {
udev_device_set_devnode(udev_device, &property[8]);
- } else if (strncmp(property, "DEVLINKS=", 9) == 0) {
+ } else if (startswith(property, "DEVLINKS=")) {
char devlinks[UTIL_PATH_SIZE];
char *slink;
char *next;
}
if (slink[0] != '\0')
udev_device_add_devlink(udev_device, slink, 0);
- } else if (strncmp(property, "TAGS=", 5) == 0) {
+ } else if (startswith(property, "TAGS=")) {
char tags[UTIL_PATH_SIZE];
char *next;
udev_device_add_tag(udev_device, tag);
}
}
- } else if (strncmp(property, "USEC_INITIALIZED=", 19) == 0) {
+ } else if (startswith(property, "USEC_INITIALIZED=")) {
udev_device_set_usec_initialized(udev_device, strtoull(&property[19], NULL, 10));
- } else if (strncmp(property, "DRIVER=", 7) == 0) {
+ } else if (startswith(property, "DRIVER=")) {
udev_device_set_driver(udev_device, &property[7]);
- } else if (strncmp(property, "ACTION=", 7) == 0) {
+ } else if (startswith(property, "ACTION=")) {
udev_device_set_action(udev_device, &property[7]);
- } else if (strncmp(property, "MAJOR=", 6) == 0) {
+ } else if (startswith(property, "MAJOR=")) {
udev_device->maj = strtoull(&property[6], NULL, 10);
- } else if (strncmp(property, "MINOR=", 6) == 0) {
+ } else if (startswith(property, "MINOR=")) {
udev_device->min = strtoull(&property[6], NULL, 10);
- } else if (strncmp(property, "DEVPATH_OLD=", 12) == 0) {
+ } else if (startswith(property, "DEVPATH_OLD=")) {
udev_device_set_devpath_old(udev_device, &property[12]);
- } else if (strncmp(property, "SEQNUM=", 7) == 0) {
+ } else if (startswith(property, "SEQNUM=")) {
udev_device_set_seqnum(udev_device, strtoull(&property[7], NULL, 10));
- } else if (strncmp(property, "IFINDEX=", 8) == 0) {
+ } else if (startswith(property, "IFINDEX=")) {
udev_device_set_ifindex(udev_device, strtoull(&property[8], NULL, 10));
- } else if (strncmp(property, "DEVMODE=", 8) == 0) {
+ } else if (startswith(property, "DEVMODE=")) {
udev_device_set_devnode_mode(udev_device, strtoul(&property[8], NULL, 8));
} else {
udev_device_add_property_from_string(udev_device, property);
* @udev_device: udev device
* @key: property name
*
- * Returns: the value of a device property, or #NULL if there is no such property.
+ * Get the value of a given property.
+ *
+ * Returns: the property string, or #NULL if there is no such property.
**/
_public_ const char *udev_device_get_property_value(struct udev_device *udev_device, const char *key)
{
continue;
pos[0] = '\0';
- if (strncmp(line, "DEVTYPE=", 8) == 0) {
+ if (startswith(line, "DEVTYPE=")) {
udev_device_set_devtype(udev_device, &line[8]);
continue;
}
- if (strncmp(line, "IFINDEX=", 8) == 0) {
+ if (startswith(line, "IFINDEX=")) {
udev_device_set_ifindex(udev_device, strtoull(&line[8], NULL, 10));
continue;
}
- if (strncmp(line, "DEVNAME=", 8) == 0) {
+ if (startswith(line, "DEVNAME=")) {
udev_device_set_devnode(udev_device, &line[8]);
continue;
}
- if (strncmp(line, "MAJOR=", 6) == 0)
+ if (startswith(line, "MAJOR="))
maj = strtoull(&line[6], NULL, 10);
- else if (strncmp(line, "MINOR=", 6) == 0)
+ else if (startswith(line, "MINOR="))
min = strtoull(&line[6], NULL, 10);
- else if (strncmp(line, "DEVMODE=", 8) == 0)
+ else if (startswith(line, "DEVMODE="))
udev_device->devnode_mode = strtoul(&line[8], NULL, 8);
udev_device_add_property_from_string(udev_device, line);
return NULL;
/* path starts in sys */
- if (strncmp(syspath, TEST_PREFIX "/sys", strlen(TEST_PREFIX "/sys")) != 0) {
+ if (!startswith(syspath, TEST_PREFIX "/sys")) {
dbg(udev, "not in sys :%s\n", syspath);
return NULL;
}
util_strscpy(path, sizeof(path), syspath);
util_resolve_sys_link(udev, path, sizeof(path));
- if (strncmp(path + strlen(TEST_PREFIX "/sys"), "/devices/", 9) == 0) {
+ if (startswith(path + strlen(TEST_PREFIX "/sys"), "/devices/")) {
char file[UTIL_PATH_SIZE];
/* all "devices" require a "uevent" file */
char path[UTIL_PATH_SIZE];
struct stat statbuf;
- if (strcmp(subsystem, "subsystem") == 0) {
+ if (streq(subsystem, "subsystem")) {
util_strscpyl(path, sizeof(path), TEST_PREFIX "/sys/subsystem/", sysname, NULL);
if (stat(path, &statbuf) == 0)
goto found;
goto out;
}
- if (strcmp(subsystem, "module") == 0) {
+ if (streq(subsystem, "module")) {
util_strscpyl(path, sizeof(path), TEST_PREFIX "/sys/module/", sysname, NULL);
if (stat(path, &statbuf) == 0)
goto found;
goto out;
}
- if (strcmp(subsystem, "drivers") == 0) {
+ if (streq(subsystem, "drivers")) {
char subsys[UTIL_NAME_SIZE];
char *driver;
const char *parent_devtype;
parent_subsystem = udev_device_get_subsystem(parent);
- if (parent_subsystem != NULL && strcmp(parent_subsystem, subsystem) == 0) {
+ if (parent_subsystem != NULL && streq(parent_subsystem, subsystem)) {
if (devtype == NULL)
break;
parent_devtype = udev_device_get_devtype(parent);
- if (parent_devtype != NULL && strcmp(parent_devtype, devtype) == 0)
+ if (parent_devtype != NULL && streq(parent_devtype, devtype))
break;
}
parent = udev_device_get_parent(parent);
* udev_device_get_sysname:
* @udev_device: udev device
*
- * Returns: the sys name of the device device
+ * Get the kernel device name in /sys.
+ *
+ * Returns: the name string of the device device
**/
_public_ const char *udev_device_get_sysname(struct udev_device *udev_device)
{
* udev_device_get_sysnum:
* @udev_device: udev device
*
- * Returns: the trailing number of of the device name
+ * Get the instance number of the device.
+ *
+ * Returns: the trailing number string of of the device name
**/
_public_ const char *udev_device_get_sysnum(struct udev_device *udev_device)
{
**/
_public_ unsigned long long int udev_device_get_usec_since_initialized(struct udev_device *udev_device)
{
- unsigned long long now;
+ unsigned long long now_ts;
if (udev_device == NULL)
return 0;
udev_device_read_db(udev_device, NULL);
if (udev_device->usec_initialized == 0)
return 0;
- now = now_usec();
- if (now == 0)
+ now_ts = now_usec();
+ if (now_ts == 0)
return 0;
- return now - udev_device->usec_initialized;
+ return now_ts - udev_device->usec_initialized;
}
unsigned long long udev_device_get_usec_initialized(struct udev_device *udev_device)
* Some core links return only the last element of the target path,
* these are just values, the paths should not be exposed.
*/
- if (strcmp(sysattr, "driver") == 0 ||
- strcmp(sysattr, "subsystem") == 0 ||
- strcmp(sysattr, "module") == 0) {
+ if (streq(sysattr, "driver") ||
+ streq(sysattr, "subsystem") ||
+ streq(sysattr, "module")) {
if (util_get_sys_core_link_value(udev_device->udev, sysattr,
udev_device->syspath, value, sizeof(value)) < 0)
return NULL;
if (major(udev_device_get_devnum(udev_device)) > 0) {
/* use dev_t -- b259:131072, c254:0 */
if (asprintf(&udev_device->id_filename, "%c%u:%u",
- strcmp(udev_device_get_subsystem(udev_device), "block") == 0 ? 'b' : 'c',
+ streq(udev_device_get_subsystem(udev_device), "block") ? 'b' : 'c',
major(udev_device_get_devnum(udev_device)),
minor(udev_device_get_devnum(udev_device))) < 0)
udev_device->id_filename = NULL;
return udev_list_get_entry(&udev_device->tags_list);
}
+/**
+ * udev_device_has_tag:
+ * @udev_device: udev device
+ * @tag: tag name
+ *
+ * Check if a given device has a certain tag associated.
+ *
+ * Returns: 1 if the tag is found. 0 otherwise.
+ **/
_public_ int udev_device_has_tag(struct udev_device *udev_device, const char *tag)
{
struct udev_list_entry *list_entry;
~ianmdlvl / elogind.git / blobdiff