* Opaque object representing the library context.
*/
struct udev {
- int refcount;
- void (*log_fn)(struct udev *udev,
- int priority, const char *file, int line, const char *fn,
- const char *format, va_list args);
- void *userdata;
- char *sys_path;
- char *dev_path;
- char *rules_path[4];
- unsigned long long rules_path_ts[4];
- int rules_path_count;
- char *run_path;
- struct udev_list properties_list;
- int log_priority;
+ int refcount;
+ void (*log_fn)(struct udev *udev,
+ int priority, const char *file, int line, const char *fn,
+ const char *format, va_list args);
+ void *userdata;
+ char *sys_path;
+ char *dev_path;
+ char *rules_path[4];
+ unsigned long long rules_path_ts[4];
+ int rules_path_count;
+ char *run_path;
+ struct udev_list properties_list;
+ int log_priority;
};
void udev_log(struct udev *udev,
- int priority, const char *file, int line, const char *fn,
- const char *format, ...)
+ int priority, const char *file, int line, const char *fn,
+ const char *format, ...)
{
- va_list args;
+ va_list args;
- va_start(args, format);
- udev->log_fn(udev, priority, file, line, fn, format, args);
- va_end(args);
+ va_start(args, format);
+ udev->log_fn(udev, priority, file, line, fn, format, args);
+ va_end(args);
}
static void log_stderr(struct udev *udev,
- int priority, const char *file, int line, const char *fn,
- const char *format, va_list args)
+ int priority, const char *file, int line, const char *fn,
+ const char *format, va_list args)
{
- fprintf(stderr, "libudev: %s: ", fn);
- vfprintf(stderr, format, args);
+ fprintf(stderr, "libudev: %s: ", fn);
+ vfprintf(stderr, format, args);
}
/**
**/
UDEV_EXPORT void *udev_get_userdata(struct udev *udev)
{
- if (udev == NULL)
- return NULL;
- return udev->userdata;
+ if (udev == NULL)
+ return NULL;
+ return udev->userdata;
}
/**
**/
UDEV_EXPORT void udev_set_userdata(struct udev *udev, void *userdata)
{
- if (udev == NULL)
- return;
- udev->userdata = userdata;
+ if (udev == NULL)
+ return;
+ udev->userdata = userdata;
}
static char *set_value(char **s, const char *v)
{
- free(*s);
- *s = strdup(v);
- util_remove_trailing_chars(*s, '/');
- return *s;
+ free(*s);
+ *s = strdup(v);
+ util_remove_trailing_chars(*s, '/');
+ return *s;
}
/**
**/
UDEV_EXPORT struct udev *udev_new(void)
{
- struct udev *udev;
- const char *env;
- char *config_file = NULL;
- FILE *f;
-
- udev = calloc(1, sizeof(struct udev));
- if (udev == NULL)
- return NULL;
- udev->refcount = 1;
- udev->log_fn = log_stderr;
- udev->log_priority = LOG_ERR;
- udev_list_init(udev, &udev->properties_list, true);
-
- /* custom config file */
- env = getenv("UDEV_CONFIG_FILE");
- if (env != NULL) {
- if (set_value(&config_file, env) == NULL)
- goto err;
- udev_add_property(udev, "UDEV_CONFIG_FILE", config_file);
- }
-
- /* default config file */
- if (config_file == NULL)
- config_file = strdup(SYSCONFDIR "/udev/udev.conf");
- if (config_file == NULL)
- goto err;
-
- f = fopen(config_file, "re");
- if (f != NULL) {
- char line[UTIL_LINE_SIZE];
- int line_nr = 0;
-
- while (fgets(line, sizeof(line), f)) {
- size_t len;
- char *key;
- char *val;
-
- line_nr++;
-
- /* find key */
- key = line;
- while (isspace(key[0]))
- key++;
-
- /* comment or empty line */
- if (key[0] == '#' || key[0] == '\0')
- continue;
-
- /* split key/value */
- val = strchr(key, '=');
- if (val == NULL) {
- err(udev, "missing <key>=<value> in '%s'[%i], skip line\n", config_file, line_nr);
- continue;
- }
- val[0] = '\0';
- val++;
-
- /* find value */
- while (isspace(val[0]))
- val++;
-
- /* terminate key */
- len = strlen(key);
- if (len == 0)
- continue;
- while (isspace(key[len-1]))
- len--;
- key[len] = '\0';
-
- /* terminate value */
- len = strlen(val);
- if (len == 0)
- continue;
- while (isspace(val[len-1]))
- len--;
- val[len] = '\0';
-
- if (len == 0)
- continue;
-
- /* unquote */
- if (val[0] == '"' || val[0] == '\'') {
- if (val[len-1] != val[0]) {
- err(udev, "inconsistent quoting in '%s'[%i], skip line\n", config_file, line_nr);
- continue;
- }
- val[len-1] = '\0';
- val++;
- }
-
- if (strcmp(key, "udev_log") == 0) {
- udev_set_log_priority(udev, util_log_priority(val));
- continue;
- }
- if (strcmp(key, "udev_root") == 0) {
- set_value(&udev->dev_path, val);
- continue;
- }
- if (strcmp(key, "udev_run") == 0) {
- set_value(&udev->run_path, val);
- continue;
- }
- if (strcmp(key, "udev_sys") == 0) {
- set_value(&udev->sys_path, val);
- continue;
- }
- if (strcmp(key, "udev_rules") == 0) {
- set_value(&udev->rules_path[0], val);
- udev->rules_path_count = 1;
- continue;
- }
- }
- fclose(f);
- }
-
- /* environment overwrites config */
- env = getenv("UDEV_LOG");
- if (env != NULL)
- udev_set_log_priority(udev, util_log_priority(env));
-
- /* set defaults */
- if (udev->dev_path == NULL)
- if (set_value(&udev->dev_path, "/dev") == NULL)
- goto err;
-
- if (udev->sys_path == NULL)
- if (set_value(&udev->sys_path, "/sys") == NULL)
- goto err;
-
- if (udev->run_path == NULL)
- if (set_value(&udev->run_path, "/run/udev") == NULL)
- goto err;
-
- if (udev->rules_path[0] == NULL) {
- /* /usr/lib/udev -- system rules */
- udev->rules_path[0] = strdup(PKGLIBEXECDIR "/rules.d");
- if (!udev->rules_path[0])
- goto err;
-
- /* /etc/udev -- local administration rules */
- udev->rules_path[1] = strdup(SYSCONFDIR "/udev/rules.d");
- if (!udev->rules_path[1])
- goto err;
-
- /* /run/udev -- runtime rules */
- if (asprintf(&udev->rules_path[2], "%s/rules.d", udev->run_path) < 0)
- goto err;
-
- udev->rules_path_count = 3;
- }
-
- dbg(udev, "context %p created\n", udev);
- dbg(udev, "log_priority=%d\n", udev->log_priority);
- dbg(udev, "config_file='%s'\n", config_file);
- dbg(udev, "dev_path='%s'\n", udev->dev_path);
- dbg(udev, "sys_path='%s'\n", udev->sys_path);
- dbg(udev, "run_path='%s'\n", udev->run_path);
- dbg(udev, "rules_path='%s':'%s':'%s'\n", udev->rules_path[0], udev->rules_path[1], udev->rules_path[2]);
- free(config_file);
- return udev;
+ struct udev *udev;
+ const char *env;
+ char *config_file = NULL;
+ FILE *f;
+
+ udev = calloc(1, sizeof(struct udev));
+ if (udev == NULL)
+ return NULL;
+ udev->refcount = 1;
+ udev->log_fn = log_stderr;
+ udev->log_priority = LOG_ERR;
+ udev_list_init(udev, &udev->properties_list, true);
+
+ /* custom config file */
+ env = getenv("UDEV_CONFIG_FILE");
+ if (env != NULL) {
+ if (set_value(&config_file, env) == NULL)
+ goto err;
+ udev_add_property(udev, "UDEV_CONFIG_FILE", config_file);
+ }
+
+ /* default config file */
+ if (config_file == NULL)
+ config_file = strdup(SYSCONFDIR "/udev/udev.conf");
+ if (config_file == NULL)
+ goto err;
+
+ f = fopen(config_file, "re");
+ if (f != NULL) {
+ char line[UTIL_LINE_SIZE];
+ int line_nr = 0;
+
+ while (fgets(line, sizeof(line), f)) {
+ size_t len;
+ char *key;
+ char *val;
+
+ line_nr++;
+
+ /* find key */
+ key = line;
+ while (isspace(key[0]))
+ key++;
+
+ /* comment or empty line */
+ if (key[0] == '#' || key[0] == '\0')
+ continue;
+
+ /* split key/value */
+ val = strchr(key, '=');
+ if (val == NULL) {
+ err(udev, "missing <key>=<value> in '%s'[%i], skip line\n", config_file, line_nr);
+ continue;
+ }
+ val[0] = '\0';
+ val++;
+
+ /* find value */
+ while (isspace(val[0]))
+ val++;
+
+ /* terminate key */
+ len = strlen(key);
+ if (len == 0)
+ continue;
+ while (isspace(key[len-1]))
+ len--;
+ key[len] = '\0';
+
+ /* terminate value */
+ len = strlen(val);
+ if (len == 0)
+ continue;
+ while (isspace(val[len-1]))
+ len--;
+ val[len] = '\0';
+
+ if (len == 0)
+ continue;
+
+ /* unquote */
+ if (val[0] == '"' || val[0] == '\'') {
+ if (val[len-1] != val[0]) {
+ err(udev, "inconsistent quoting in '%s'[%i], skip line\n", config_file, line_nr);
+ continue;
+ }
+ val[len-1] = '\0';
+ val++;
+ }
+
+ if (strcmp(key, "udev_log") == 0) {
+ udev_set_log_priority(udev, util_log_priority(val));
+ continue;
+ }
+ if (strcmp(key, "udev_root") == 0) {
+ set_value(&udev->dev_path, val);
+ continue;
+ }
+ if (strcmp(key, "udev_run") == 0) {
+ set_value(&udev->run_path, val);
+ continue;
+ }
+ if (strcmp(key, "udev_sys") == 0) {
+ set_value(&udev->sys_path, val);
+ continue;
+ }
+ if (strcmp(key, "udev_rules") == 0) {
+ set_value(&udev->rules_path[0], val);
+ udev->rules_path_count = 1;
+ continue;
+ }
+ }
+ fclose(f);
+ }
+
+ /* environment overwrites config */
+ env = getenv("UDEV_LOG");
+ if (env != NULL)
+ udev_set_log_priority(udev, util_log_priority(env));
+
+ /* set defaults */
+ if (udev->dev_path == NULL)
+ if (set_value(&udev->dev_path, "/dev") == NULL)
+ goto err;
+
+ if (udev->sys_path == NULL)
+ if (set_value(&udev->sys_path, "/sys") == NULL)
+ goto err;
+
+ if (udev->run_path == NULL)
+ if (set_value(&udev->run_path, "/run/udev") == NULL)
+ goto err;
+
+ if (udev->rules_path[0] == NULL) {
+ /* /usr/lib/udev -- system rules */
+ udev->rules_path[0] = strdup(PKGLIBEXECDIR "/rules.d");
+ if (!udev->rules_path[0])
+ goto err;
+
+ /* /etc/udev -- local administration rules */
+ udev->rules_path[1] = strdup(SYSCONFDIR "/udev/rules.d");
+ if (!udev->rules_path[1])
+ goto err;
+
+ /* /run/udev -- runtime rules */
+ if (asprintf(&udev->rules_path[2], "%s/rules.d", udev->run_path) < 0)
+ goto err;
+
+ udev->rules_path_count = 3;
+ }
+
+ dbg(udev, "context %p created\n", udev);
+ dbg(udev, "log_priority=%d\n", udev->log_priority);
+ dbg(udev, "config_file='%s'\n", config_file);
+ dbg(udev, "dev_path='%s'\n", udev->dev_path);
+ dbg(udev, "sys_path='%s'\n", udev->sys_path);
+ dbg(udev, "run_path='%s'\n", udev->run_path);
+ dbg(udev, "rules_path='%s':'%s':'%s'\n", udev->rules_path[0], udev->rules_path[1], udev->rules_path[2]);
+ free(config_file);
+ return udev;
err:
- free(config_file);
- err(udev, "context creation failed\n");
- udev_unref(udev);
- return NULL;
+ free(config_file);
+ err(udev, "context creation failed\n");
+ udev_unref(udev);
+ return NULL;
}
/**
**/
UDEV_EXPORT struct udev *udev_ref(struct udev *udev)
{
- if (udev == NULL)
- return NULL;
- udev->refcount++;
- return udev;
+ if (udev == NULL)
+ return NULL;
+ udev->refcount++;
+ return udev;
}
/**
**/
UDEV_EXPORT void udev_unref(struct udev *udev)
{
- if (udev == NULL)
- return;
- udev->refcount--;
- if (udev->refcount > 0)
- return;
- udev_list_cleanup(&udev->properties_list);
- free(udev->dev_path);
- free(udev->sys_path);
- free(udev->rules_path[0]);
- free(udev->rules_path[1]);
- free(udev->rules_path[2]);
- free(udev->run_path);
- dbg(udev, "context %p released\n", udev);
- free(udev);
+ if (udev == NULL)
+ return;
+ udev->refcount--;
+ if (udev->refcount > 0)
+ return;
+ udev_list_cleanup(&udev->properties_list);
+ free(udev->dev_path);
+ free(udev->sys_path);
+ free(udev->rules_path[0]);
+ free(udev->rules_path[1]);
+ free(udev->rules_path[2]);
+ free(udev->run_path);
+ dbg(udev, "context %p released\n", udev);
+ free(udev);
}
/**
*
**/
UDEV_EXPORT void udev_set_log_fn(struct udev *udev,
- void (*log_fn)(struct udev *udev,
- int priority, const char *file, int line, const char *fn,
- const char *format, va_list args))
+ void (*log_fn)(struct udev *udev,
+ int priority, const char *file, int line, const char *fn,
+ const char *format, va_list args))
{
- udev->log_fn = log_fn;
- info(udev, "custom logging function %p registered\n", log_fn);
+ udev->log_fn = log_fn;
+ info(udev, "custom logging function %p registered\n", log_fn);
}
/**
**/
UDEV_EXPORT int udev_get_log_priority(struct udev *udev)
{
- return udev->log_priority;
+ return udev->log_priority;
}
/**
**/
UDEV_EXPORT void udev_set_log_priority(struct udev *udev, int priority)
{
- char num[32];
+ char num[32];
- udev->log_priority = priority;
- snprintf(num, sizeof(num), "%u", udev->log_priority);
- udev_add_property(udev, "UDEV_LOG", num);
+ udev->log_priority = priority;
+ snprintf(num, sizeof(num), "%u", udev->log_priority);
+ udev_add_property(udev, "UDEV_LOG", num);
}
int udev_get_rules_path(struct udev *udev, char **path[], unsigned long long *stamp_usec[])
{
- *path = udev->rules_path;
- if (stamp_usec)
- *stamp_usec = udev->rules_path_ts;
- return udev->rules_path_count;
+ *path = udev->rules_path;
+ if (stamp_usec)
+ *stamp_usec = udev->rules_path_ts;
+ return udev->rules_path_count;
}
/**
**/
UDEV_EXPORT const char *udev_get_sys_path(struct udev *udev)
{
- if (udev == NULL)
- return NULL;
- return udev->sys_path;
+ if (udev == NULL)
+ return NULL;
+ return udev->sys_path;
}
/**
**/
UDEV_EXPORT const char *udev_get_dev_path(struct udev *udev)
{
- if (udev == NULL)
- return NULL;
- return udev->dev_path;
+ if (udev == NULL)
+ return NULL;
+ return udev->dev_path;
}
/**
**/
UDEV_EXPORT const char *udev_get_run_path(struct udev *udev)
{
- if (udev == NULL)
- return NULL;
- return udev->run_path;
+ if (udev == NULL)
+ return NULL;
+ return udev->run_path;
}
struct udev_list_entry *udev_add_property(struct udev *udev, const char *key, const char *value)
{
- if (value == NULL) {
- struct udev_list_entry *list_entry;
-
- list_entry = udev_get_properties_list_entry(udev);
- list_entry = udev_list_entry_get_by_name(list_entry, key);
- if (list_entry != NULL)
- udev_list_entry_delete(list_entry);
- return NULL;
- }
- return udev_list_entry_add(&udev->properties_list, key, value);
+ if (value == NULL) {
+ struct udev_list_entry *list_entry;
+
+ list_entry = udev_get_properties_list_entry(udev);
+ list_entry = udev_list_entry_get_by_name(list_entry, key);
+ if (list_entry != NULL)
+ udev_list_entry_delete(list_entry);
+ return NULL;
+ }
+ return udev_list_entry_add(&udev->properties_list, key, value);
}
struct udev_list_entry *udev_get_properties_list_entry(struct udev *udev)
{
- return udev_list_get_entry(&udev->properties_list);
+ return udev_list_get_entry(&udev->properties_list);
}
~ianmdlvl / elogind.git / blobdiff