2004-02-24 00:41:20 +01:00
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/* the Music Player Daemon (MPD)
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* (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "conf.h"
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#include "log.h"
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#include "utils.h"
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#include "buffer2array.h"
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2004-10-28 07:14:55 +02:00
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#include "list.h"
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2004-02-24 00:41:20 +01:00
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#include <sys/param.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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2004-02-24 22:20:16 +01:00
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#include <unistd.h>
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#include <sys/types.h>
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#include <pwd.h>
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2004-02-24 00:41:20 +01:00
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#define MAX_STRING_SIZE MAXPATHLEN+80
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2004-10-28 07:14:55 +02:00
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#define CONF_COMMENT '#'
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#define CONF_BLOCK_BEGIN "{"
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#define CONF_BLOCK_END "}"
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2004-02-24 00:41:20 +01:00
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2004-10-28 07:14:55 +02:00
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#define CONF_REPEATABLE_MASK 0x01
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#define CONF_BLOCK_MASK 0x02
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typedef struct _configEntry {
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unsigned char mask;
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List * configParamList;
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} ConfigEntry;
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static List * configEntriesList = NULL;
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static ConfigParam * newConfigParam(char * value, int line) {
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ConfigParam * ret = malloc(sizeof(ConfigParam));
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if(!value) ret->value = NULL;
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else ret->value = strdup(value);
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ret->line = line;
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ret->numberOfBlockParams = 0;
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ret->blockParams = NULL;
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return ret;
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}
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static void freeConfigParam(ConfigParam * param) {
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2004-02-24 00:41:20 +01:00
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int i;
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2004-10-28 07:14:55 +02:00
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if(param->value) free(param->value);
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for(i=0; i<param->numberOfBlockParams; i++) {
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if(param->blockParams[i].name) {
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free(param->blockParams[i].name);
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}
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if(param->blockParams[i].value) {
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free(param->blockParams[i].value);
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}
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}
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if(param->numberOfBlockParams) free(param->blockParams);
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free(param);
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2004-02-24 00:41:20 +01:00
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}
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2004-10-28 07:14:55 +02:00
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ConfigEntry * newConfigEntry(int repeatable, int block) {
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ConfigEntry * ret = malloc(sizeof(ConfigEntry));
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2004-02-24 00:41:20 +01:00
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2004-10-28 07:14:55 +02:00
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ret->mask = 0;
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ret->configParamList = makeList((ListFreeDataFunc *)freeConfigParam);
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if(repeatable) ret->mask |= CONF_REPEATABLE_MASK;
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if(block) ret->mask |= CONF_BLOCK_MASK;
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return ret;
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}
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void freeConfigEntry(ConfigEntry * entry) {
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freeList(entry->configParamList);
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free(entry);
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}
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void registerConfigParam(char * name, int repeatable, int block) {
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ConfigEntry * entry;
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if(findInList(configEntriesList, name, NULL)) {
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ERROR("config parameter \"%s\" already registered\n", name);
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exit(EXIT_FAILURE);
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}
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entry = newConfigEntry(repeatable, block);
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insertInList(configEntriesList, name, entry);
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}
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void initConf() {
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configEntriesList = makeList((ListFreeDataFunc *)freeConfigEntry);
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registerConfigParam(CONF_PORT, 0, 0);
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registerConfigParam(CONF_MUSIC_DIR, 0, 0);
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registerConfigParam(CONF_PLAYLIST_DIR, 0, 0);
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registerConfigParam(CONF_LOG_FILE, 0, 0);
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registerConfigParam(CONF_ERROR_FILE, 0, 0);
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registerConfigParam(CONF_CONN_TIMEOUT, 0, 0);
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registerConfigParam(CONF_MIXER_DEVICE, 0, 0);
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registerConfigParam(CONF_MAX_CONN, 0, 0);
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registerConfigParam(CONF_MAX_PLAYLIST_LENGTH, 0, 0);
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registerConfigParam(CONF_BUFFER_BEFORE_PLAY, 0, 0);
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registerConfigParam(CONF_MAX_COMMAND_LIST_SIZE, 0, 0);
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registerConfigParam(CONF_MAX_OUTPUT_BUFFER_SIZE, 0, 0);
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registerConfigParam(CONF_AUDIO_OUTPUT, 1, 1);
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registerConfigParam(CONF_SAVE_ABSOLUTE_PATHS, 0, 0);
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registerConfigParam(CONF_BIND_TO_ADDRESS, 1, 0);
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registerConfigParam(CONF_MIXER_TYPE, 0, 0);
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registerConfigParam(CONF_STATE_FILE, 0, 0);
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registerConfigParam(CONF_USER, 0, 0);
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registerConfigParam(CONF_DB_FILE, 0, 0);
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registerConfigParam(CONF_LOG_LEVEL, 0, 0);
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registerConfigParam(CONF_MIXER_CONTROL, 0, 0);
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registerConfigParam(CONF_AUDIO_WRITE_SIZE, 0, 0);
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registerConfigParam(CONF_FS_CHARSET, 0, 0);
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registerConfigParam(CONF_PASSWORD, 1, 0);
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registerConfigParam(CONF_DEFAULT_PERMS, 0, 0);
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registerConfigParam(CONF_AUDIO_BUFFER_SIZE, 0, 0);
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registerConfigParam(CONF_REPLAYGAIN, 0, 0);
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registerConfigParam(CONF_AUDIO_OUTPUT_FORMAT, 0, 0);
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registerConfigParam(CONF_HTTP_PROXY_HOST, 0, 0);
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registerConfigParam(CONF_HTTP_PROXY_PORT, 0, 0);
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registerConfigParam(CONF_HTTP_PROXY_USER, 0, 0);
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registerConfigParam(CONF_HTTP_PROXY_PASSWORD, 0, 0);
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registerConfigParam(CONF_REPLAYGAIN_PREAMP, 0, 0);
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registerConfigParam(CONF_ID3V1_ENCODING, 0, 0);
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}
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static void addBlockParam(ConfigParam * param, char * name, char * value,
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int line)
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{
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param->numberOfBlockParams++;
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param->blockParams = realloc(param->blockParams,
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param->numberOfBlockParams*sizeof(BlockParam));
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param->blockParams[param->numberOfBlockParams-1].name = strdup(name);
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param->blockParams[param->numberOfBlockParams-1].value = strdup(value);
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param->blockParams[param->numberOfBlockParams-1].line = line;
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}
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static ConfigParam * readConfigBlock(FILE * fp, int * count, char * string) {
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ConfigParam * ret = newConfigParam(NULL, *count);
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char ** array;
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int i;
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int numberOfArgs;
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int argsMinusComment;
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while(myFgets(string, MAX_STRING_SIZE ,fp)) {
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(*count)++;
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numberOfArgs = buffer2array(string, &array);
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for(i=0; i<numberOfArgs; i++) {
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if(array[i][0] == CONF_COMMENT) break;
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}
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argsMinusComment = i;
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if(0 == argsMinusComment) continue;
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if(1 == argsMinusComment &&
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0 == strcmp(array[0], CONF_BLOCK_END))
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{
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break;
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}
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if(2 != argsMinusComment) {
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ERROR("improperly formated config file at line %i:"
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2004-10-31 16:54:21 +01:00
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" %s\n", *count, string);
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2004-10-28 07:14:55 +02:00
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exit(EXIT_FAILURE);
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}
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if(0 == strcmp(array[0], CONF_BLOCK_BEGIN) ||
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0 == strcmp(array[1], CONF_BLOCK_BEGIN) ||
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0 == strcmp(array[0], CONF_BLOCK_END) ||
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0 == strcmp(array[1], CONF_BLOCK_END))
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{
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ERROR("improperly formated config file at line %i:"
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" %s\n", count, string);
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ERROR("in block begging at line %i\n", ret->line);
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exit(EXIT_FAILURE);
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}
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addBlockParam(ret, array[0], array[1], *count);
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freeArgArray(array, numberOfArgs);
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}
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return ret;
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}
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void readConf(char * file) {
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2004-02-24 00:41:20 +01:00
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FILE * fp;
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char string[MAX_STRING_SIZE+1];
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char ** array;
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int i;
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int numberOfArgs;
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2004-10-28 07:14:55 +02:00
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int argsMinusComment;
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2004-08-10 18:03:03 +02:00
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int count = 0;
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2004-10-28 07:14:55 +02:00
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ConfigEntry * entry;
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void * voidPtr;
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ConfigParam * param;
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2004-02-24 00:41:20 +01:00
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if(!(fp=fopen(file,"r"))) {
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ERROR("problems opening file %s for reading\n",file);
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2004-04-03 01:34:16 +02:00
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exit(EXIT_FAILURE);
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2004-02-24 00:41:20 +01:00
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}
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2004-10-28 07:14:55 +02:00
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while(myFgets(string, MAX_STRING_SIZE, fp)) {
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2004-08-10 18:03:03 +02:00
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count++;
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2004-10-28 07:14:55 +02:00
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numberOfArgs = buffer2array(string, &array);
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for(i=0; i<numberOfArgs; i++) {
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if(array[i][0] == CONF_COMMENT) break;
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}
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argsMinusComment = i;
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if(0 == argsMinusComment) continue;
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if(2 != argsMinusComment) {
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ERROR("improperly formated config file at line %i:"
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" %s\n", count, string);
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2004-04-03 01:34:16 +02:00
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exit(EXIT_FAILURE);
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2004-02-24 00:41:20 +01:00
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}
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2004-10-28 07:14:55 +02:00
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if(!findInList(configEntriesList, array[0], &voidPtr)) {
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ERROR("unrecognized paramater in config file at line "
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"%i: %s\n", count, string);
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2004-04-03 01:34:16 +02:00
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exit(EXIT_FAILURE);
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2004-02-24 00:41:20 +01:00
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}
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2004-10-28 07:14:55 +02:00
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entry = (ConfigEntry *) voidPtr;
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if( !(entry->mask & CONF_REPEATABLE_MASK) &&
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entry->configParamList->numberOfNodes)
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{
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param = entry->configParamList->firstNode->data;
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ERROR("config paramter \"%s\" is first defined on line "
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"%i and redefined on line %i\n",
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array[0], param->line, count);
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exit(EXIT_FAILURE);
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}
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if(entry->mask & CONF_BLOCK_MASK) {
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if(0 != strcmp(array[1], CONF_BLOCK_BEGIN)) {
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ERROR("improperly formated config file at "
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"line %i: %s\n", count, string);
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exit(EXIT_FAILURE);
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2004-02-24 00:41:20 +01:00
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}
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2004-10-28 07:14:55 +02:00
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param = readConfigBlock(fp, &count, string);
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2004-02-24 00:41:20 +01:00
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}
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2004-10-28 07:14:55 +02:00
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else param = newConfigParam(array[1], count);
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insertInListWithoutKey(entry->configParamList, param);
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freeArgArray(array, numberOfArgs);
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2004-02-24 00:41:20 +01:00
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}
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2004-10-28 07:14:55 +02:00
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}
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2004-02-24 00:41:20 +01:00
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2004-10-28 07:14:55 +02:00
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ConfigParam * getNextConfigParam(char * name, ConfigParam * last) {
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void * voidPtr;
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ConfigEntry * entry;
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ListNode * node;
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ConfigParam * param;
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2004-02-24 00:41:20 +01:00
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2004-10-28 07:14:55 +02:00
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if(!findInList(configEntriesList, name, &voidPtr)) return NULL;
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entry = voidPtr;
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node = entry->configParamList->firstNode;
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if(last) {
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while(node!=NULL) {
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param = node->data;
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node = node->nextNode;
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if(param == last) break;
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2004-02-24 00:41:20 +01:00
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}
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}
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2004-10-28 07:14:55 +02:00
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if(node == NULL) return NULL;
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param = node->data;
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return param;
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}
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char * getConfigParamValue(char * name) {
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ConfigParam * param = getConfigParam(name);
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if(!param) return NULL;
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return param->value;
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}
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char * forceAndGetConfigParamValue(char * name) {
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ConfigParam * param = getConfigParam(name);
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if(!param) {
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ERROR("\"%s\" not found in config file\n", name);
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exit(EXIT_FAILURE);
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}
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return param->value;
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}
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BlockParam * getBlockParam(ConfigParam * param, char * name) {
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BlockParam * ret = NULL;
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int i;
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for(i = 0; i < param->numberOfBlockParams; i++) {
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if(0 == strcmp(name, param->blockParams[i].name)) {
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if(ret) {
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ERROR("\"%s\" first defined on line %i, and "
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"redefined on line %i\n", name,
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ret->line, param->blockParams[i].line);
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}
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ret = param->blockParams+i;
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2004-02-24 00:41:20 +01:00
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}
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2004-10-28 07:14:55 +02:00
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}
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return ret;
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}
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char * parseConfigFilePath(char * name, int force) {
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|
|
|
ConfigParam * param = getConfigParam(name);
|
|
|
|
char * path;
|
|
|
|
|
|
|
|
if(!param && force) {
|
|
|
|
ERROR("config parameter \"%s\" not found\n", name);
|
|
|
|
exit(EXIT_FAILURE);
|
|
|
|
}
|
|
|
|
|
|
|
|
if(!param) return NULL;
|
|
|
|
|
|
|
|
path = param->value;
|
|
|
|
|
|
|
|
if(path[0] != '/' && path[0] != '~') {
|
|
|
|
ERROR("\"%s\" is not an absolute path at line %i\n",
|
|
|
|
param->value, param->line);
|
|
|
|
exit(EXIT_FAILURE);
|
|
|
|
}
|
|
|
|
// Parse ~ in path
|
|
|
|
else if(path[0] == '~') {
|
|
|
|
struct passwd * pwd = NULL;
|
|
|
|
char * newPath;
|
|
|
|
int pos = 1;
|
|
|
|
if(path[1]=='/' || path[1] == '\0') {
|
|
|
|
ConfigParam * userParam = getConfigParam(CONF_USER);
|
|
|
|
|
|
|
|
if(userParam) {
|
|
|
|
pwd = getpwnam(userParam->value);
|
|
|
|
if(!pwd) {
|
|
|
|
ERROR("no such user %s at line %i\n",
|
|
|
|
userParam->value,
|
|
|
|
userParam->line);
|
|
|
|
exit(EXIT_FAILURE);
|
2004-02-24 22:20:16 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
else {
|
2004-10-28 07:14:55 +02:00
|
|
|
uid_t uid = geteuid();
|
|
|
|
if((pwd = getpwuid(uid)) == NULL) {
|
|
|
|
ERROR("problems getting passwd entry "
|
|
|
|
"for current user\n");
|
2004-04-03 01:34:16 +02:00
|
|
|
exit(EXIT_FAILURE);
|
2004-02-24 22:20:16 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2004-10-28 07:14:55 +02:00
|
|
|
else {
|
|
|
|
int foundSlash = 0;
|
|
|
|
char * ch = path+1;
|
|
|
|
for(;*ch!='\0' && *ch!='/';ch++);
|
|
|
|
if(*ch=='/') foundSlash = 1;
|
|
|
|
* ch = '\0';
|
|
|
|
pos+= ch-path+1;
|
|
|
|
if((pwd = getpwnam(path+1)) == NULL) {
|
|
|
|
ERROR("user \"%s\" not found at line %i\n",
|
|
|
|
path+1, param->line);
|
|
|
|
exit(EXIT_FAILURE);
|
|
|
|
}
|
|
|
|
if(foundSlash) *ch = '/';
|
|
|
|
}
|
|
|
|
newPath = malloc(strlen(pwd->pw_dir)+strlen(path+pos)+1);
|
|
|
|
strcpy(newPath, pwd->pw_dir);
|
|
|
|
strcat(newPath, path+pos);
|
|
|
|
free(param->value);
|
|
|
|
param->value = newPath;
|
2004-02-24 00:41:20 +01:00
|
|
|
}
|
|
|
|
|
2004-10-28 07:14:55 +02:00
|
|
|
return param->value;
|
2004-02-24 00:41:20 +01:00
|
|
|
}
|