X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fudev%2Fsrc%2Flibudev.c;fp=src%2Fudev%2Fsrc%2Flibudev.c;h=0000000000000000000000000000000000000000;hb=3e2147858f21943d5f4a781c60f33ac22c6096ed;hp=d954daef68dd674ec567efd14198593a5de362f4;hpb=19c5f19d69bb5f520fa7213239490c55de06d99d;p=elogind.git

diff --git a/src/udev/src/libudev.c b/src/udev/src/libudev.c
deleted file mode 100644
index d954daef6..000000000
--- a/src/udev/src/libudev.c
+++ /dev/null
@@ -1,457 +0,0 @@
-/*
- * libudev - interface to udev device information
- *
- * Copyright (C) 2008-2010 Kay Sievers <kay.sievers@vrfy.org>
- *
- * This library 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.
- */
-
-#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 "libudev-private.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;
-        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, ...)
-{
-        va_list 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)
-{
-        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.
- *
- * Returns: stored userdata
- **/
-UDEV_EXPORT 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.
- **/
-UDEV_EXPORT void udev_set_userdata(struct udev *udev, void *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;
-}
-
-/**
- * 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
- **/
-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 overrides 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;
-
-                /* /run/udev -- runtime rules */
-                if (asprintf(&udev->rules_path[2], "%s/rules.d", udev->run_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;
-
-                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;
-}
-
-/**
- * udev_ref:
- * @udev: udev library context
- *
- * Take a reference of the udev library context.
- *
- * Returns: the passed udev library context
- **/
-UDEV_EXPORT 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.
- *
- **/
-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);
-}
-
-/**
- * udev_set_log_fn:
- * @udev: udev library context
- * @log_fn: function to be called for logging 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.
- *
- **/
-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))
-{
-        udev->log_fn = log_fn;
-        info(udev, "custom logging function %p registered\n", log_fn);
-}
-
-/**
- * udev_get_log_priority:
- * @udev: udev library context
- *
- * The initial logging priority is read from the udev config file
- * at startup.
- *
- * Returns: the current logging priority
- **/
-UDEV_EXPORT int udev_get_log_priority(struct udev *udev)
-{
-        return udev->log_priority;
-}
-
-/**
- * udev_set_log_priority:
- * @udev: udev library context
- * @priority: the new logging priority
- *
- * Set the current logging priority. The value controls which messages
- * are logged.
- **/
-UDEV_EXPORT 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);
-}
-
-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;
-}
-
-/**
- * udev_get_sys_path:
- * @udev: udev library context
- *
- * Retrieve the sysfs mount point. The default is "/sys". For
- * testing purposes, it can be overridden with udev_sys=
- * in the udev configuration file.
- *
- * Returns: the sys mount point
- **/
-UDEV_EXPORT const char *udev_get_sys_path(struct udev *udev)
-{
-        if (udev == NULL)
-                return NULL;
-        return udev->sys_path;
-}
-
-/**
- * udev_get_dev_path:
- * @udev: udev library context
- *
- * Retrieve the device directory path. The default value is "/dev",
- * the actual value may be overridden in the udev configuration
- * file.
- *
- * Returns: the device directory path
- **/
-UDEV_EXPORT const char *udev_get_dev_path(struct udev *udev)
-{
-        if (udev == NULL)
-                return NULL;
-        return udev->dev_path;
-}
-
-/**
- * udev_get_run_path:
- * @udev: udev library context
- *
- * Retrieve the udev runtime directory path. The default is "/run/udev".
- *
- * Returns: the runtime directory path
- **/
-UDEV_EXPORT const char *udev_get_run_path(struct udev *udev)
-{
-        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);
-}
-
-struct udev_list_entry *udev_get_properties_list_entry(struct udev *udev)
-{
-        return udev_list_get_entry(&udev->properties_list);
-}