Re-tagging 0.13.0 release to fix a couple of bugs with the tarball.

git-svn-id: https://svn.musicpd.org/mpd/tags/release-0.13.0@6325 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 482 insertions, 0 deletions

diff --git a/trunk/src/main.c b/trunk/src/main.c
new file mode 100644
index 000000000..4c537eb1d
--- /dev/null
+++ b/trunk/src/main.c
@@ -0,0 +1,482 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
+ * This project's homepage is: http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "interface.h"
+#include "command.h"
+#include "playlist.h"
+#include "directory.h"
+#include "player.h"
+#include "listen.h"
+#include "conf.h"
+#include "path.h"
+#include "playerData.h"
+#include "stats.h"
+#include "sig_handlers.h"
+#include "audio.h"
+#include "volume.h"
+#include "log.h"
+#include "permission.h"
+#include "replayGain.h"
+#include "inputPlugin.h"
+#include "audioOutput.h"
+#include "inputStream.h"
+#include "state_file.h"
+#include "tag.h"
+#include "tagTracker.h"
+#include "dbUtils.h"
+#include "../config.h"
+#include "utils.h"
+#include "normalize.h"
+#include "zeroconf.h"
+
+#include <stdio.h>
+#include <sys/select.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pwd.h>
+#include <grp.h>
+#include <time.h>
+#include <unistd.h>
+
+#define SYSTEM_CONFIG_FILE_LOCATION	"/etc/mpd.conf"
+#define USER_CONFIG_FILE_LOCATION	"/.mpdconf"
+
+typedef struct _Options {
+	int kill;
+	int daemon;
+	int stdOutput;
+	int createDB;
+	int verbose;
+} Options;
+
+/* 
+ * from git-1.3.0, needed for solaris
+ */
+#ifndef HAVE_SETENV
+static int setenv(const char *name, const char *value, int replace)
+{
+	int out;
+	size_t namelen, valuelen;
+	char *envstr;
+
+	if (!name || !value)
+		return -1;
+	if (!replace) {
+		char *oldval = NULL;
+		oldval = getenv(name);
+		if (oldval)
+			return 0;
+	}
+
+	namelen = strlen(name);
+	valuelen = strlen(value);
+	envstr = xmalloc((namelen + valuelen + 2));
+	if (!envstr)
+		return -1;
+
+	memcpy(envstr, name, namelen);
+	envstr[namelen] = '=';
+	memcpy(envstr + namelen + 1, value, valuelen);
+	envstr[namelen + valuelen + 1] = 0;
+
+	out = putenv(envstr);
+	/* putenv(3) makes the argument string part of the environment,
+	 * and changing that string modifies the environment --- which
+	 * means we do not own that storage anymore.  Do not free
+	 * envstr.
+	 */
+
+	return out;
+}
+#endif /* HAVE_SETENV */
+
+static void usage(char *argv[])
+{
+	ERROR("usage:\n");
+	ERROR("   %s [options] <conf file>\n", argv[0]);
+	ERROR("   %s [options]   (searches for ~%s then %s)\n",
+	      argv[0], USER_CONFIG_FILE_LOCATION, SYSTEM_CONFIG_FILE_LOCATION);
+	ERROR("\n");
+	ERROR("options:\n");
+	ERROR("   --help             this usage statement\n");
+	ERROR("   --kill             kill the currently running mpd session\n");
+	ERROR
+	    ("   --create-db        force (re)creation of database and exit\n");
+	ERROR
+	    ("   --no-create-db     don't create database, even if it doesn't exist\n");
+	ERROR("   --no-daemon        don't detach from console\n");
+	ERROR("   --stdout           print messages to stdout and stderr\n");
+	ERROR("   --verbose          verbose logging\n");
+	ERROR("   --version          prints version information\n");
+}
+
+static void version(void)
+{
+	LOG("mpd (MPD: Music Player Daemon) %s\n", VERSION);
+	LOG("\n");
+	LOG("Copyright (C) 2003-2007 Warren Dukes <warren.dukes@gmail.com>\n");
+	LOG("This is free software; see the source for copying conditions.  There is NO\n");
+	LOG("warranty; not even MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
+	LOG("\n");
+	LOG("Supported formats:\n");
+
+	initInputPlugins();
+	printAllInputPluginSuffixes(stdout);
+
+	LOG("\n");
+	LOG("Supported outputs:\n");
+	loadAudioDrivers();
+	printAllOutputPluginTypes(stdout);
+}
+
+static void parseOptions(int argc, char **argv, Options * options)
+{
+	int argcLeft = argc;
+
+	options->verbose = 0;
+	options->daemon = 1;
+	options->stdOutput = 0;
+	options->createDB = 0;
+	options->kill = 0;
+
+	if (argc > 1) {
+		int i = 1;
+		while (i < argc) {
+			if (strncmp(argv[i], "--", 2) == 0) {
+				if (strcmp(argv[i], "--help") == 0) {
+					usage(argv);
+					exit(EXIT_SUCCESS);
+				} else if (strcmp(argv[i], "--kill") == 0) {
+					options->kill++;
+					argcLeft--;
+				} else if (strcmp(argv[i], "--no-daemon") == 0) {
+					options->daemon = 0;
+					argcLeft--;
+				} else if (strcmp(argv[i], "--stdout") == 0) {
+					options->stdOutput = 1;
+					argcLeft--;
+				} else if (strcmp(argv[i], "--create-db") == 0) {
+					options->stdOutput = 1;
+					options->createDB = 1;
+					argcLeft--;
+				} else if (strcmp(argv[i], "--no-create-db") ==
+					   0) {
+					options->createDB = -1;
+					argcLeft--;
+				} else if (strcmp(argv[i], "--verbose") == 0) {
+					options->verbose = 1;
+					argcLeft--;
+				} else if (strcmp(argv[i], "--version") == 0) {
+					version();
+					exit(EXIT_SUCCESS);
+				} else {
+					fprintf(stderr,
+					          "unknown command line option: %s\n",
+						  argv[i]);
+					exit(EXIT_FAILURE);
+				}
+			} else
+				break;
+			i++;
+		}
+	}
+
+	if (argcLeft <= 2) {
+		if (argcLeft == 2) {
+			readConf(argv[argc - 1]);
+			return;
+		} else if (argcLeft == 1) {
+			struct stat st;
+			char *homedir = getenv("HOME");
+			char userfile[MAXPATHLEN + 1] = "";
+			if (homedir && (strlen(homedir) +
+					strlen(USER_CONFIG_FILE_LOCATION)) <
+			    MAXPATHLEN) {
+				strcpy(userfile, homedir);
+				strcat(userfile, USER_CONFIG_FILE_LOCATION);
+			}
+			if (strlen(userfile) && (0 == stat(userfile, &st))) {
+				readConf(userfile);
+				return;
+			} else if (0 == stat(SYSTEM_CONFIG_FILE_LOCATION, &st)) {
+				readConf(SYSTEM_CONFIG_FILE_LOCATION);
+				return;
+			}
+		}
+	}
+
+	usage(argv);
+	exit(EXIT_FAILURE);
+}
+
+static void closeAllFDs(void)
+{
+	int i;
+	int fds = getdtablesize();
+
+	for (i = 3; i < fds; i++)
+		close(i);
+}
+
+static void changeToUser(void)
+{
+	ConfigParam *param = getConfigParam(CONF_USER);
+
+	if (param && strlen(param->value)) {
+		/* get uid */
+		struct passwd *userpwd;
+		if ((userpwd = getpwnam(param->value)) == NULL) {
+			FATAL("no such user \"%s\" at line %i\n", param->value,
+			      param->line);
+		}
+
+		if (setgid(userpwd->pw_gid) == -1) {
+			FATAL("cannot setgid for user \"%s\" at line %i: %s\n",
+			      param->value, param->line, strerror(errno));
+		}
+#ifdef _BSD_SOURCE
+		/* init suplementary groups 
+		 * (must be done before we change our uid)
+		 */
+		if (initgroups(param->value, userpwd->pw_gid) == -1) {
+			WARNING("cannot init supplementary groups "
+				"of user \"%s\" at line %i: %s\n",
+				param->value, param->line, strerror(errno));
+		}
+#endif
+
+		/* set uid */
+		if (setuid(userpwd->pw_uid) == -1) {
+			FATAL("cannot change to uid of user "
+			      "\"%s\" at line %i: %s\n",
+			      param->value, param->line, strerror(errno));
+		}
+
+		/* this is needed by libs such as arts */
+		if (userpwd->pw_dir) {
+			setenv("HOME", userpwd->pw_dir, 1);
+		}
+	}
+}
+
+static void openDB(Options * options, char *argv0)
+{
+	if (options->createDB > 0 || readDirectoryDB() < 0) {
+		if (options->createDB < 0) {
+			FATAL("can't open db file and using "
+			      "\"--no-create-db\" command line option\n"
+			      "try running \"%s --create-db\"\n", argv0);
+		}
+		flushWarningLog();
+		if (checkDirectoryDB() < 0)
+			exit(EXIT_FAILURE);
+		initMp3Directory();
+		if (writeDirectoryDB() < 0)
+			exit(EXIT_FAILURE);
+		if (options->createDB)
+			exit(EXIT_SUCCESS);
+	}
+}
+
+static void daemonize(Options * options)
+{
+	FILE *fp = NULL;
+	ConfigParam *pidFileParam = parseConfigFilePath(CONF_PID_FILE, 0);
+
+	if (pidFileParam) {
+		/* do this before daemon'izing so we can fail gracefully if we can't
+		 * write to the pid file */
+		DEBUG("opening pid file\n");
+		fp = fopen(pidFileParam->value, "w+");
+		if (!fp) {
+			FATAL("could not open %s \"%s\" (at line %i) for writing: %s\n",
+			     CONF_PID_FILE, pidFileParam->value,
+			     pidFileParam->line, strerror(errno));
+		}
+	}
+
+	if (options->daemon) {
+		int pid;
+
+		fflush(NULL);
+		pid = fork();
+		if (pid > 0)
+			_exit(EXIT_SUCCESS);
+		else if (pid < 0) {
+			FATAL("problems fork'ing for daemon!\n");
+		}
+
+		if (chdir("/") < 0) {
+			FATAL("problems changing to root directory\n");
+		}
+
+		if (setsid() < 0) {
+			FATAL("problems setsid'ing\n");
+		}
+
+		fflush(NULL);
+		pid = fork();
+		if (pid > 0)
+			_exit(EXIT_SUCCESS);
+		else if (pid < 0) {
+			FATAL("problems fork'ing for daemon!\n");
+		}
+
+		DEBUG("daemonized!\n");
+	}
+
+	if (pidFileParam) {
+		DEBUG("writing pid file\n");
+		fprintf(fp, "%lu\n", (unsigned long)getpid());
+		fclose(fp);
+	}
+}
+
+static void cleanUpPidFile(void)
+{
+	ConfigParam *pidFileParam = parseConfigFilePath(CONF_PID_FILE, 0);
+
+	if (!pidFileParam)
+		return;
+
+	DEBUG("cleaning up pid file\n");
+
+	unlink(pidFileParam->value);
+}
+
+static void killFromPidFile(char *cmd, int killOption)
+{
+	FILE *fp;
+	ConfigParam *pidFileParam = parseConfigFilePath(CONF_PID_FILE, 0);
+	int pid;
+
+	if (!pidFileParam) {
+		FATAL("no pid_file specified in the config file\n");
+	}
+
+	fp = fopen(pidFileParam->value, "r");
+	if (!fp) {
+		FATAL("unable to open %s \"%s\": %s\n",
+		      CONF_PID_FILE, pidFileParam->value, strerror(errno));
+	}
+	if (fscanf(fp, "%i", &pid) != 1) {
+		FATAL("unable to read the pid from file \"%s\"\n",
+		      pidFileParam->value);
+	}
+	fclose(fp);
+
+	if (kill(pid, SIGTERM)) {
+		FATAL("unable to kill proccess %i: %s\n", pid, strerror(errno));
+	}
+	exit(EXIT_SUCCESS);
+}
+
+int main(int argc, char *argv[])
+{
+	Options options;
+	clock_t start;
+
+	closeAllFDs();
+
+	initConf();
+
+	parseOptions(argc, argv, &options);
+
+	if (options.kill)
+		killFromPidFile(argv[0], options.kill);
+
+	initStats();
+	initTagConfig();
+	initLog(options.verbose);
+
+	if (options.createDB <= 0)
+		listenOnPort();
+
+	changeToUser();
+
+	open_log_files(options.stdOutput);
+
+	initPaths();
+	initPermissions();
+	initPlaylist();
+	initInputPlugins();
+
+	openDB(&options, argv[0]);
+
+	initCommands();
+	initPlayerData();
+	initAudioConfig();
+	initAudioDriver();
+	initVolume();
+	initInterfaces();
+	initZeroconf();
+	initReplayGainState();
+	initNormalization();
+	initInputStream();
+
+	daemonize(&options);
+
+	setup_log_output(options.stdOutput);
+
+
+
+	initSigHandlers();
+
+	openVolumeDevice();
+	read_state_file();
+
+	while (COMMAND_RETURN_KILL != doIOForInterfaces()) {
+		if (COMMAND_RETURN_KILL == handlePendingSignals())
+			break;
+		syncPlayerAndPlaylist();
+		closeOldInterfaces();
+		readDirectoryDBIfUpdateIsFinished();
+	}
+
+	write_state_file();
+	playerKill();
+	finishZeroconf();
+	freeAllInterfaces();
+	closeAllListenSockets();
+	finishPlaylist();
+
+	start = clock();
+	closeMp3Directory();
+	DEBUG("closeMp3Directory took %f seconds\n", 
+	      ((float)(clock()-start))/CLOCKS_PER_SEC);
+
+	finishNormalization();
+	finishAudioDriver();
+	finishAudioConfig();
+	finishVolume();
+	finishPaths();
+	finishPermissions();
+	finishCommands();
+	finishInputPlugins();
+	cleanUpPidFile();
+	finishConf();
+	freePlayerData();
+
+	close_log_files();
+	return EXIT_SUCCESS;
+}