*
*/
-/* define this to enable parsing debugging */
-/* #define DEBUG_PARSER */
-
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <ctype.h>
+#include <syslog.h>
#include "libsysfs/sysfs/libsysfs.h"
+#include "udev_libc_wrapper.h"
#include "udev.h"
#include "udev_utils.h"
#include "udev_version.h"
#include "logging.h"
-#include "namedev.h"
/* global variables */
-char sysfs_path[SYSFS_PATH_MAX];
-char udev_root[PATH_MAX];
-char udev_db_path[PATH_MAX+NAME_MAX];
-char udev_rules_filename[PATH_MAX+NAME_MAX];
-char udev_config_filename[PATH_MAX+NAME_MAX];
-int udev_log;
-int udev_dev_d;
-int udev_hotplug_d;
-
-
-static int string_is_true(const char *str)
+char sysfs_path[PATH_SIZE];
+char udev_root[PATH_SIZE];
+char udev_db_path[PATH_SIZE];
+char udev_config_filename[PATH_SIZE];
+char udev_rules_filename[PATH_SIZE];
+int udev_log_priority;
+int udev_run;
+
+static int get_key(char **line, char **key, char **value)
{
- if (strcasecmp(str, "true") == 0)
- return 1;
- if (strcasecmp(str, "yes") == 0)
- return 1;
- if (strcasecmp(str, "1") == 0)
- return 1;
- return 0;
-}
+ char *linepos;
+ char *temp;
-static void init_variables(void)
-{
- const char *env;
+ linepos = *line;
+ if (!linepos)
+ return -1;
+
+ /* skip whitespace */
+ while (isspace(linepos[0]))
+ linepos++;
+
+ /* get the key */
+ *key = linepos;
+ while (1) {
+ linepos++;
+ if (linepos[0] == '\0')
+ return -1;
+ if (isspace(linepos[0]))
+ break;
+ if (linepos[0] == '=')
+ break;
+ }
- /* If any config values are specified, they will override these values. */
- strcpy(udev_root, UDEV_ROOT);
- strcpy(udev_db_path, UDEV_DB);
- strcpy(udev_config_filename, UDEV_CONFIG_FILE);
- strcpy(udev_rules_filename, UDEV_RULES_FILE);
+ /* terminate key */
+ linepos[0] = '\0';
+ linepos++;
- udev_log = string_is_true(UDEV_LOG_DEFAULT);
+ /* skip whitespace */
+ while (isspace(linepos[0]))
+ linepos++;
- udev_dev_d = 1;
- env = getenv("UDEV_NO_DEVD");
- if (env && string_is_true(env))
- udev_dev_d = 0;
+ /* get the value*/
+ if (linepos[0] == '"')
+ linepos++;
+ else
+ return -1;
+ *value = linepos;
- udev_hotplug_d = 1;
- env = getenv("UDEV_NO_HOTPLUGD");
- if (env && string_is_true(env))
- udev_hotplug_d = 0;
+ temp = strchr(linepos, '"');
+ if (!temp)
+ return -1;
+ temp[0] = '\0';
+
+ return 0;
}
static int parse_config_file(void)
{
char line[LINE_SIZE];
char *bufline;
- char *temp;
+ char *linepos;
char *variable;
char *value;
char *buf;
int lineno;
int retval = 0;
- if (file_map(udev_config_filename, &buf, &bufsize) == 0) {
- dbg("reading '%s' as config file", udev_config_filename);
- } else {
- dbg("can't open '%s' as config file", udev_config_filename);
+ if (file_map(udev_config_filename, &buf, &bufsize) != 0) {
+ err("can't open '%s' as config file", udev_config_filename);
return -ENODEV;
}
cur += count+1;
lineno++;
- if (count >= LINE_SIZE) {
- info("line too long, conf line skipped %s, line %d",
- udev_config_filename, lineno);
+ if (count >= sizeof(line)) {
+ err("line too long, conf line skipped %s, line %d", udev_config_filename, lineno);
continue;
}
if (bufline[0] == COMMENT_CHARACTER)
continue;
- strncpy(line, bufline, count);
- line[count] = '\0';
- temp = line;
- dbg_parse("read '%s'", temp);
-
- retval = parse_get_pair(&temp, &variable, &value);
- if (retval != 0)
- info("%s:%d:%Zd: error parsing '%s'",
- udev_config_filename, lineno, temp-line, temp);
+ strlcpy(line, bufline, count+1);
- dbg_parse("variable='%s', value='%s'", variable, value);
+ linepos = line;
+ retval = get_key(&linepos, &variable, &value);
+ if (retval != 0) {
+ err("error parsing %s, line %d:%d", udev_config_filename, lineno, (int) (linepos-line));
+ continue;
+ }
if (strcasecmp(variable, "udev_root") == 0) {
- strfieldcpy(udev_root, value);
- no_trailing_slash(udev_root);
+ strlcpy(udev_root, value, sizeof(udev_root));
+ remove_trailing_char(udev_root, '/');
continue;
}
if (strcasecmp(variable, "udev_db") == 0) {
- strfieldcpy(udev_db_path, value);
- no_trailing_slash(udev_db_path);
+ strlcpy(udev_db_path, value, sizeof(udev_db_path));
+ remove_trailing_char(udev_db_path, '/');
continue;
}
if (strcasecmp(variable, "udev_rules") == 0) {
- strfieldcpy(udev_rules_filename, value);
- no_trailing_slash(udev_rules_filename);
+ strlcpy(udev_rules_filename, value, sizeof(udev_rules_filename));
+ remove_trailing_char(udev_rules_filename, '/');
continue;
}
if (strcasecmp(variable, "udev_log") == 0) {
- udev_log = string_is_true(value);
+ udev_log_priority = log_priority(value);
continue;
}
-
- info("%s:%d:%Zd: unknown key '%s'",
- udev_config_filename, lineno, temp-line, temp);
}
file_unmap(buf, bufsize);
return retval;
}
-static void get_dirs(void)
+void udev_init_config(void)
{
- char *temp;
- int retval;
-
- retval = sysfs_get_mnt_path(sysfs_path, SYSFS_PATH_MAX);
- if (retval)
- dbg("sysfs_get_mnt_path failed");
-
- /* see if we should try to override any of the default values */
- if (getenv("UDEV_TEST") != NULL) {
- temp = getenv("SYSFS_PATH");
- if (temp != NULL) {
- strfieldcpy(sysfs_path, temp);
- no_trailing_slash(sysfs_path);
- }
+ const char *env;
- temp = getenv("UDEV_CONFIG_FILE");
- if (temp != NULL)
- strfieldcpy(udev_config_filename, temp);
+ strcpy(udev_root, UDEV_ROOT);
+ strcpy(udev_db_path, UDEV_DB);
+ strcpy(udev_config_filename, UDEV_CONFIG_FILE);
+ strcpy(udev_rules_filename, UDEV_RULES_FILE);
+ udev_log_priority = LOG_ERR;
+ udev_run = 1;
+ sysfs_get_mnt_path(sysfs_path, sizeof(sysfs_path));
+
+ /* disable RUN key execution */
+ env = getenv("UDEV_RUN");
+ if (env && !string_is_true(env))
+ udev_run = 0;
+
+ env = getenv("UDEV_CONFIG_FILE");
+ if (env) {
+ strlcpy(udev_config_filename, env, sizeof(udev_config_filename));
+ remove_trailing_char(udev_config_filename, '/');
}
parse_config_file();
+
+ env = getenv("UDEV_LOG");
+ if (env)
+ udev_log_priority = log_priority(env);
+
dbg("sysfs_path='%s'", sysfs_path);
+ dbg("UDEV_CONFIG_FILE='%s'", udev_config_filename);
dbg("udev_root='%s'", udev_root);
- dbg("udev_config_filename='%s'", udev_config_filename);
- dbg("udev_db_path='%s'", udev_db_path);
- dbg("udev_rules_filename='%s'", udev_rules_filename);
- dbg("udev_log=%d", udev_log);
-}
-
-void udev_init_config(void)
-{
- init_variables();
- get_dirs();
+ dbg("udev_db='%s'", udev_db_path);
+ dbg("udev_rules='%s'", udev_rules_filename);
+ dbg("udev_log=%d", udev_log_priority);
}
~ianmdlvl / elogind.git / blobdiff