+++ /dev/null
-/***
- This file is part of systemd.
-
- Copyright 2008-2014 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/>.
-***/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <stdarg.h>
-#include <string.h>
-#include <ctype.h>
-
-#include "libudev.h"
-#include "libudev-private.h"
-#include "missing.h"
-
-/**
- * SECTION:libudev
- * @short_description: libudev context
- *
- * The context contains the default values read from the udev config file,
- * and is passed to all library operations.
- */
-
-/**
- * udev:
- *
- * 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;
-};
-
-/**
- * udev_get_userdata:
- * @udev: udev library context
- *
- * Retrieve stored data pointer from library context. This might be useful
- * to access from callbacks.
- *
- * Returns: stored userdata
- **/
-_public_ void *udev_get_userdata(struct udev *udev) {
- if (udev == NULL)
- return NULL;
- return udev->userdata;
-}
-
-/**
- * udev_set_userdata:
- * @udev: udev library context
- * @userdata: data pointer
- *
- * Store custom @userdata in the library context.
- **/
-_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.
- *
- * 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) {
- struct udev *udev;
- _cleanup_fclose_ FILE *f = NULL;
-
- udev = new0(struct udev, 1);
- if (udev == NULL)
- return NULL;
- udev->refcount = 1;
-
- 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) {
- log_debug("/etc/udev/udev.conf:%u: missing assignment, skipping line.", 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]) {
- log_debug("/etc/udev/udev.conf:%u: inconsistent quoting, skipping line.", line_nr);
- continue;
- }
- val[len-1] = '\0';
- val++;
- }
-
- if (streq(key, "udev_log")) {
- int prio;
-
- prio = util_log_priority(val);
- if (prio < 0)
- log_debug("/etc/udev/udev.conf:%u: invalid log level '%s', ignoring.", line_nr, val);
- else
- log_set_max_level(prio);
- continue;
- }
- }
- }
-
- return udev;
-}
-
-/**
- * udev_ref:
- * @udev: udev library context
- *
- * Take a reference of the udev library context.
- *
- * Returns: the passed udev library context
- **/
-_public_ struct udev *udev_ref(struct udev *udev) {
- if (udev == NULL)
- return NULL;
- udev->refcount++;
- return udev;
-}
-
-/**
- * udev_unref:
- * @udev: udev library context
- *
- * Drop a reference of the udev library context. If the refcount
- * reaches zero, the resources of the context will be released.
- *
- * Returns: the passed udev library context if it has still an active reference, or #NULL otherwise.
- **/
-_public_ struct udev *udev_unref(struct udev *udev) {
- if (udev == NULL)
- return NULL;
- udev->refcount--;
- if (udev->refcount > 0)
- return udev;
- free(udev);
- return NULL;
-}
-
-/**
- * udev_set_log_fn:
- * @udev: udev library context
- * @log_fn: function to be called for log messages
- *
- * 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)) {
- return;
-}
-
-/**
- * udev_get_log_priority:
- * @udev: udev library context
- *
- * This function is deprecated.
- *
- **/
-_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 log priority
- *
- * This function is deprecated.
- *
- **/
-_public_ void udev_set_log_priority(struct udev *udev, int priority) {
- log_set_max_level(priority);
-}
~ianmdlvl / elogind.git / blobdiff