X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev_config.c;h=fe26850a87f69e7cc5e2036ba44c2d58c4217f89;hp=074bd7b35bae53a4a5cd1b7f89e4dac761b46cdf;hb=bbbe503ec1a5623a5a8abd003f46fdd8c3581054;hpb=3836a3c49a72b9ee0b092725628f30839f100c4f

diff --git a/udev_config.c b/udev_config.c
index 074bd7b35..fe26850a8 100644
--- a/udev_config.c
+++ b/udev_config.c
@@ -3,7 +3,7 @@
  *
  * Userspace devfs
  *
- * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
  *
  *
  *	This program is free software; you can redistribute it and/or modify it
@@ -32,10 +32,12 @@
 #include <errno.h>
 #include <ctype.h>
 
+#include "libsysfs/sysfs/libsysfs.h"
 #include "udev.h"
+#include "udev_lib.h"
 #include "udev_version.h"
+#include "logging.h"
 #include "namedev.h"
-#include "libsysfs/libsysfs.h"
 
 /* global variables */
 char sysfs_path[SYSFS_PATH_MAX];
@@ -44,9 +46,23 @@ char udev_db_filename[PATH_MAX+NAME_MAX];
 char udev_permissions_filename[PATH_MAX+NAME_MAX];
 char udev_rules_filename[PATH_MAX+NAME_MAX];
 char udev_config_filename[PATH_MAX+NAME_MAX];
-char default_mode_str[NAME_MAX];
+char default_mode_str[MODE_SIZE];
+char default_owner_str[OWNER_SIZE];
+char default_group_str[GROUP_SIZE];
+int udev_log;
+int udev_sleep;
+int udev_dev_d;
 
 
+static int string_is_true(char *str)
+{
+	if (strcasecmp(str, "true") == 0)
+		return 1;
+	if (strcasecmp(str, "yes") == 0)
+		return 1;
+	return 0;
+}
+
 static void init_variables(void)
 {
 	/* fill up the defaults.  
@@ -57,26 +73,78 @@ static void init_variables(void)
 	strfieldcpy(udev_config_filename, UDEV_CONFIG_FILE);
 	strfieldcpy(udev_rules_filename, UDEV_RULES_FILE);
 	strfieldcpy(udev_permissions_filename, UDEV_PERMISSION_FILE);
+	udev_log = string_is_true(UDEV_LOG_DEFAULT);
+
+	udev_sleep = 1;
+	if (getenv("UDEV_NO_SLEEP") != NULL)
+		udev_sleep = 0;
+
+	udev_dev_d = 1;
+	if (getenv("UDEV_NO_DEVD") != NULL)
+		udev_dev_d = 0;
 }
 
 #define set_var(_name, _var)				\
 	if (strcasecmp(variable, _name) == 0) {		\
 		dbg_parse("%s = '%s'", _name, value);	\
-		strncpy(_var, value, sizeof(_var));	\
+		strfieldcpymax(_var, value, sizeof(_var));\
 	}
 
+#define set_bool(_name, _var)				\
+	if (strcasecmp(variable, _name) == 0) {		\
+		dbg_parse("%s = '%s'", _name, value);	\
+		_var = string_is_true(value);		\
+	}
+
+int parse_get_pair(char **orig_string, char **left, char **right)
+{
+	char *temp;
+	char *string = *orig_string;
+
+	if (!string)
+		return -ENODEV;
+
+	/* eat any whitespace */
+	while (isspace(*string) || *string == ',')
+		++string;
+
+	/* split based on '=' */
+	temp = strsep(&string, "=");
+	*left = temp;
+	if (!string)
+		return -ENODEV;
+
+	/* take the right side and strip off the '"' */
+	while (isspace(*string))
+		++string;
+	if (*string == '"')
+		++string;
+	else
+		return -ENODEV;
+
+	temp = strsep(&string, "\"");
+	if (!string || *temp == '\0')
+		return -ENODEV;
+	*right = temp;
+	*orig_string = string;
+	
+	return 0;
+}
+
 static int parse_config_file(void)
 {
 	char line[255];
 	char *temp;
 	char *variable;
 	char *value;
-	FILE *fd;
-	int lineno = 0;
+	char *buf;
+	size_t bufsize;
+	size_t cur;
+	size_t count;
+	int lineno;
 	int retval = 0;
-	
-	fd = fopen(udev_config_filename, "r");
-	if (fd != NULL) {
+
+	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);
@@ -84,13 +152,20 @@ static int parse_config_file(void)
 	}
 
 	/* loop through the whole file */
+	lineno = 0;
+	cur = 0;
 	while (1) {
-		/* get a line */
-		temp = fgets(line, sizeof(line), fd);
-		if (temp == NULL)
-			goto exit;
+		count = buf_get_line(buf, bufsize, cur);
+
+		strncpy(line, buf + cur, count);
+		line[count] = '\0';
+		temp = line;
 		lineno++;
 
+		cur += count+1;
+		if (cur > bufsize)
+			break;
+
 		dbg_parse("read '%s'", temp);
 
 		/* eat the whitespace at the beginning of the line */
@@ -105,7 +180,7 @@ static int parse_config_file(void)
 		if (*temp == COMMENT_CHARACTER)
 			continue;
 
-		retval = get_pair(&temp, &variable, &value);
+		retval = parse_get_pair(&temp, &variable, &value);
 		if (retval)
 			break;
 		
@@ -116,11 +191,14 @@ static int parse_config_file(void)
 		set_var("udev_rules", udev_rules_filename);
 		set_var("udev_permissions", udev_permissions_filename);
 		set_var("default_mode", default_mode_str);
+		set_var("default_owner", default_owner_str);
+		set_var("default_group", default_group_str);
+		set_bool("udev_log", udev_log);
 	}
 	dbg_parse("%s:%d:%Zd: error parsing '%s'", udev_config_filename,
 		  lineno, temp - line, temp);
-exit:
-	fclose(fd);
+
+	file_unmap(buf, bufsize);
 	return retval;
 }
 
@@ -151,6 +229,7 @@ static void get_dirs(void)
 	dbg_parse("udev_db_filename = %s", udev_db_filename);
 	dbg_parse("udev_rules_filename = %s", udev_rules_filename);
 	dbg_parse("udev_permissions_filename = %s", udev_permissions_filename);
+	dbg_parse("udev_log = %d", udev_log);
 	parse_config_file();
 
 	dbg_parse("udev_root = %s", udev_root);
@@ -158,6 +237,7 @@ static void get_dirs(void)
 	dbg_parse("udev_db_filename = %s", udev_db_filename);
 	dbg_parse("udev_rules_filename = %s", udev_rules_filename);
 	dbg_parse("udev_permissions_filename = %s", udev_permissions_filename);
+	dbg_parse("udev_log_str = %d", udev_log);
 }
 
 void udev_init_config(void)