+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
- This file is part of systemd.
-
- Copyright 2008-2012 Kay Sievers <kay@vrfy.org>
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ Copyright © 2008-2014 Kay Sievers <kay@vrfy.org>
***/
+#include <ctype.h>
+#include <stdarg.h>
+#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
-#include <stddef.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <errno.h>
#include <string.h>
-#include <ctype.h>
-#include <time.h>
#include "libudev.h"
+
+#include "alloc-util.h"
+#include "fd-util.h"
#include "libudev-private.h"
#include "missing.h"
+#include "string-util.h"
/**
* SECTION:libudev
int priority, const char *file, int line, const char *fn,
const char *format, va_list args);
void *userdata;
- 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, ...)
-{
- va_list args;
-
- va_start(args, format);
- udev->log_fn(udev, priority, file, line, fn, format, args);
- va_end(args);
-}
-
-_printf_(6,0)
-static void log_stderr(struct udev *udev,
- 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);
-}
-
/**
* udev_get_userdata:
* @udev: udev library context
*
* Retrieve stored data pointer from library context. This might be useful
- * to access from callbacks like a custom logging function.
+ * to access from callbacks.
*
* Returns: stored userdata
**/
-_public_ void *udev_get_userdata(struct udev *udev)
-{
+_public_ void *udev_get_userdata(struct udev *udev) {
if (udev == NULL)
return NULL;
return udev->userdata;
*
* Store custom @userdata in the library context.
**/
-_public_ void udev_set_userdata(struct udev *udev, void *userdata)
-{
+_public_ void udev_set_userdata(struct udev *udev, void *userdata) {
if (udev == NULL)
return;
udev->userdata = userdata;
/**
* udev_new:
*
- * Create udev library context. This reads the udev configuration
- * file, and fills in the default values.
+ * Create udev library context. This only allocates the basic data structure.
*
* The initial refcount is 1, and needs to be decremented to
* release the resources of the udev library context.
*
* Returns: a new udev library context
**/
-_public_ struct udev *udev_new(void)
-{
+_public_ struct udev *udev_new(void) {
struct udev *udev;
- const char *env;
- _cleanup_free_ FILE *f = NULL;
udev = new0(struct udev, 1);
- if (udev == NULL)
+ if (!udev) {
+ errno = ENOMEM;
return NULL;
- udev->refcount = 1;
- udev->log_fn = log_stderr;
- udev->log_priority = LOG_INFO;
- udev_list_init(udev, &udev->properties_list, true);
-
- f = fopen("/etc/udev/udev.conf", "re");
- if (f != NULL) {
- char line[UTIL_LINE_SIZE];
- unsigned 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) {
- udev_err(udev, "/etc/udev/udev.conf:%u: missing assignment, skipping line.\n", 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]) {
- udev_err(udev, "/etc/udev/udev.conf:%u: inconsistent quoting, skipping line.\n", line_nr);
- continue;
- }
- val[len-1] = '\0';
- val++;
- }
-
- if (streq(key, "udev_log")) {
- int prio;
-
- prio = util_log_priority(val);
- if (prio < 0)
- udev_err(udev, "/etc/udev/udev.conf:%u: invalid logging level '%s', ignoring.\n", line_nr, val);
- else
- udev_set_log_priority(udev, prio);
- continue;
- }
- }
- }
-
- /* environment overrides config */
- env = secure_getenv("UDEV_LOG");
- if (env != NULL) {
- int prio;
-
- prio = util_log_priority(env);
- if (prio < 0)
- udev_err(udev, "$UDEV_LOG specifies invalid logging level '%s', ignoring.\n", env);
- else
- udev_set_log_priority(udev, prio);
}
+ udev->refcount = 1;
return udev;
}
*
* Returns: the passed udev library context
**/
-_public_ struct udev *udev_ref(struct udev *udev)
-{
+_public_ struct udev *udev_ref(struct udev *udev) {
if (udev == NULL)
return NULL;
udev->refcount++;
*
* Returns: the passed udev library context if it has still an active reference, or #NULL otherwise.
**/
-_public_ struct udev *udev_unref(struct udev *udev)
-{
+_public_ struct udev *udev_unref(struct udev *udev) {
if (udev == NULL)
return NULL;
udev->refcount--;
if (udev->refcount > 0)
return udev;
- udev_list_cleanup(&udev->properties_list);
- free(udev);
- return NULL;
+ return mfree(udev);
}
/**
* udev_set_log_fn:
* @udev: udev library context
- * @log_fn: function to be called for logging messages
+ * @log_fn: function to be called for log messages
*
- * The built-in logging writes to stderr. It can be
- * overridden by a custom function, to plug log messages
- * into the users' logging functionality.
+ * This function is deprecated.
*
**/
_public_ 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))
-{
- udev->log_fn = log_fn;
- udev_dbg(udev, "custom logging function %p registered\n", log_fn);
+ const char *format, va_list args)) {
+ return;
}
/**
* udev_get_log_priority:
* @udev: udev library context
*
- * The initial logging priority is read from the udev config file
- * at startup.
+ * This function is deprecated.
*
- * Returns: the current logging priority
**/
-_public_ int udev_get_log_priority(struct udev *udev)
-{
- return udev->log_priority;
+_public_ int udev_get_log_priority(struct udev *udev) {
+ return log_get_max_level();
}
/**
* udev_set_log_priority:
* @udev: udev library context
- * @priority: the new logging priority
+ * @priority: the new log priority
+ *
+ * This function is deprecated.
*
- * Set the current logging priority. The value controls which messages
- * are logged.
**/
-_public_ void udev_set_log_priority(struct udev *udev, int priority)
-{
- char num[32];
-
- udev->log_priority = priority;
- snprintf(num, sizeof(num), "%u", udev->log_priority);
- udev_add_property(udev, "UDEV_LOG", num);
-}
-
-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);
-}
-
-struct udev_list_entry *udev_get_properties_list_entry(struct udev *udev)
-{
- return udev_list_get_entry(&udev->properties_list);
+_public_ void udev_set_log_priority(struct udev *udev, int priority) {
+ log_set_max_level(priority);
}