From 53ac376cdc27ef9aac1b264aec5676b2ef4d6230 Mon Sep 17 00:00:00 2001 From: Warren Dukes Date: Wed, 2 Jun 2004 04:05:09 +0000 Subject: main() cleanup git-svn-id: https://svn.musicpd.org/mpd/trunk@1298 09075e82-0dd4-0310-85a5-a0d7c8717e4f --- src/main.c | 168 +++++++++++++++++++++++++++++++++++-------------------------- 1 file changed, 98 insertions(+), 70 deletions(-) (limited to 'src') diff --git a/src/main.c b/src/main.c index 91258712a..894b1552e 100644 --- a/src/main.c +++ b/src/main.c @@ -201,11 +201,7 @@ void parseOptions(int argc, char ** argv, Options * options) { exit(EXIT_FAILURE); } -int main(int argc, char * argv[]) { - int port, uid, gid; - FILE * out; - FILE * err; - Options options; +void closeAllFDs() { int i; for(i=0;iportStr))<0) { ERROR("problem with port number\n"); - return EXIT_FAILURE; + exit(EXIT_FAILURE); } - if(!options.createDB && !options.updateDB && + if(!options->createDB && !options->updateDB && (listenSocket = establish(port))<0) { ERROR("error binding port\n"); - return EXIT_FAILURE; + exit(EXIT_FAILURE); } +} - /* - * lose privileges as early as possible - */ - - /* change uid */ - if (options.usr && strlen(options.usr)) { +void changeToUser(Options * options) { + if (options->usr && strlen(options->usr)) { + int uid, gid; #ifdef _BSD_SOURCE gid_t gid_list[NGROUPS_MAX]; #endif /* get uid */ struct passwd * userpwd; - if ((userpwd = getpwnam(options.usr)) == NULL) { - ERROR("no such user: %s\n", options.usr); - return EXIT_FAILURE; + if ((userpwd = getpwnam(options->usr)) == NULL) { + ERROR("no such user: %s\n", options->usr); + exit(EXIT_FAILURE); } uid = userpwd->pw_uid; gid = userpwd->pw_gid; if(setgid(gid) == -1) { - ERROR("cannot setgid of user %s: %s\n", options.usr, + ERROR("cannot setgid of user %s: %s\n", options->usr, strerror(errno)); - return EXIT_FAILURE; + exit(EXIT_FAILURE); } #ifdef _BSD_SOURCE /* init suplementary groups * (must be done before we change our uid) */ - if (initgroups(options.usr, gid) == -1) { + if (initgroups(options->usr, gid) == -1) { ERROR("cannot init suplementary groups " - "of user %s: %s\n", options.usr, + "of user %s: %s\n", options->usr, strerror(errno)); } else if(getgroups(NGROUPS_MAX, gid_list) == -1) { ERROR("cannot get groups " - "of user %s: %s\n", options.usr, + "of user %s: %s\n", options->usr, strerror(errno)); - return EXIT_FAILURE; + exit(EXIT_FAILURE); } else if(setgroups(NGROUPS_MAX, gid_list) == -1) { ERROR("cannot set groups " - "of user %s: %s\n", options.usr, + "of user %s: %s\n", options->usr, strerror(errno)); - return EXIT_FAILURE; + exit(EXIT_FAILURE); } #endif /* set uid */ if (setuid(uid) == -1) { ERROR("cannot change to uid of user " - "%s: %s\n", options.usr, + "%s: %s\n", options->usr, strerror(errno)); - return EXIT_FAILURE; + exit(EXIT_FAILURE); } } +} + +void openLogFiles(Options * options, FILE ** out, FILE ** err) { + if(options->stdOutput) return; - if(NULL==(out=fopen(options.logFile,"a"))) { + if(NULL==(*out=fopen(options->logFile,"a"))) { ERROR("problem opening file \"%s\" for writing\n", - options.logFile); - return EXIT_FAILURE; + options->logFile); + exit(EXIT_FAILURE); } - if(NULL==(err=fopen(options.errorFile,"a"))) { + if(NULL==(*err=fopen(options->errorFile,"a"))) { ERROR("problem opening file \"%s\" for writing\n", - options.errorFile); - return EXIT_FAILURE; + options->errorFile); + exit(EXIT_FAILURE); } +} - initPaths(options.playlistDirArg,options.musicDirArg); - initPermissions(); - initReplayGainState(); - - initTables(); - initPlaylist(); - initInputPlugins(); - - if(!options.dbFile) directory_db = strdup(rpp2app(".mpddb")); - else directory_db = strdup(options.dbFile); +void openDB(Options * options, char * argv0) { + if(!options->dbFile) directory_db = strdup(rpp2app(".mpddb")); + else directory_db = strdup(options->dbFile); - if(options.createDB>0 || readDirectoryDB()<0) { - if(options.createDB<0) { + if(options->createDB>0 || readDirectoryDB()<0) { + if(options->createDB<0) { ERROR("can't open db file and using \"--no-create-db\"" " command line option\n"); - ERROR("try running \"%s --only-create-db\"\n", - argv[0]); + ERROR("try running \"%s --create-db\"\n", + argv0); exit(EXIT_FAILURE); } initMp3Directory(); @@ -332,21 +321,16 @@ int main(int argc, char * argv[]) { ERROR("problem opening db for reading or writing\n"); exit(EXIT_FAILURE); } - if(options.createDB) exit(EXIT_SUCCESS); + if(options->createDB) exit(EXIT_SUCCESS); } - if(options.updateDB) { + if(options->updateDB) { if(updateMp3Directory(stderr)<0) exit(EXIT_FAILURE); exit(EXIT_SUCCESS); } +} - initCommands(); - initAudioConfig(); - initAudioDriver(); - initPlayerData(); - initVolume(); - initInterfaces(); - - if(options.daemon) { +void daemonize(Options * options) { + if(options->daemon) { int pid; fflush(NULL); @@ -375,12 +359,10 @@ int main(int argc, char * argv[]) { exit(EXIT_FAILURE); } } +} - if(options.stdOutput) { - fclose(out); - fclose(err); - } - else { +void setupLogOutput(Options * options, FILE * out, FILE * err) { + if(!options->stdOutput) { fflush(NULL); if(dup2(fileno(out),STDOUT_FILENO)<0) { @@ -395,7 +377,8 @@ int main(int argc, char * argv[]) { exit(EXIT_FAILURE); } - myfprintfStdLogMode(out,err,options.logFile,options.errorFile); + myfprintfStdLogMode(out, err, options->logFile, + options->errorFile); } /* lets redirect stdin to dev null as a work around for libao bug */ @@ -412,6 +395,51 @@ int main(int argc, char * argv[]) { exit(EXIT_FAILURE); } } +} + +int main(int argc, char * argv[]) { + FILE * out; + FILE * err; + Options options; + + closeAllFDs(); + + initConf(); + + parseOptions(argc, argv, &options); + + initStats(); + initLog(); + + establishListen(&options); + + /* + * lose privileges as early as possible + */ + changeToUser(&options); + + openLogFiles(&options, &out, &err); + + initPaths(options.playlistDirArg,options.musicDirArg); + initPermissions(); + initReplayGainState(); + + initTables(); + initPlaylist(); + initInputPlugins(); + + openDB(&options, argv[0]); + + initCommands(); + initAudioConfig(); + initAudioDriver(); + initPlayerData(); + initVolume(); + initInterfaces(); + + daemonize(&options); + + setupLogOutput(&options, out, err); openVolumeDevice(); initSigHandlers(); -- cgit v1.2.3