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minidlna.c
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/* MiniDLNA project
*
* http://sourceforge.net/projects/minidlna/
*
* MiniDLNA media server
* Copyright (C) 2008-2012 Justin Maggard
*
* This file is part of MiniDLNA.
*
* MiniDLNA is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* MiniDLNA 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 MiniDLNA. If not, see <http://www.gnu.org/licenses/>.
*
* Portions of the code from the MiniUPnP project:
*
* Copyright (c) 2006-2007, Thomas Bernard
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/file.h>
#include <sys/time.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <time.h>
#include <signal.h>
#include <errno.h>
#include <pthread.h>
#include <limits.h>
#include <libgen.h>
#include <pwd.h>
#include <grp.h>
#include "config.h"
#ifdef ENABLE_NLS
#include <locale.h>
#include <libintl.h>
#endif
#include "upnpglobalvars.h"
#include "sql.h"
#include "upnphttp.h"
#include "upnpdescgen.h"
#include "minidlnapath.h"
#include "getifaddr.h"
#include "upnpsoap.h"
#include "options.h"
#include "utils.h"
#include "minissdp.h"
#include "minidlnatypes.h"
#include "process.h"
#include "upnpevents.h"
#include "scanner.h"
#include "monitor.h"
#include "log.h"
#include "tivo_beacon.h"
#include "tivo_utils.h"
#include "avahi.h"
#if SQLITE_VERSION_NUMBER < 3005001
# warning "Your SQLite3 library appears to be too old! Please use 3.5.1 or newer."
# define sqlite3_threadsafe() 0
#endif
/* OpenAndConfHTTPSocket() :
* setup the socket used to handle incoming HTTP connections. */
static int
OpenAndConfHTTPSocket(unsigned short port)
{
int s;
int i = 1;
struct sockaddr_in listenname;
/* Initialize client type cache */
memset(&clients, 0, sizeof(struct client_cache_s));
s = socket(PF_INET, SOCK_STREAM, 0);
if (s < 0)
{
DPRINTF(E_ERROR, L_GENERAL, "socket(http): %s\n", strerror(errno));
return -1;
}
if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i)) < 0)
DPRINTF(E_WARN, L_GENERAL, "setsockopt(http, SO_REUSEADDR): %s\n", strerror(errno));
memset(&listenname, 0, sizeof(struct sockaddr_in));
listenname.sin_family = AF_INET;
listenname.sin_port = htons(port);
listenname.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(s, (struct sockaddr *)&listenname, sizeof(struct sockaddr_in)) < 0)
{
DPRINTF(E_ERROR, L_GENERAL, "bind(http): %s\n", strerror(errno));
close(s);
return -1;
}
if (listen(s, 16) < 0)
{
DPRINTF(E_ERROR, L_GENERAL, "listen(http): %s\n", strerror(errno));
close(s);
return -1;
}
return s;
}
/* Handler for the SIGTERM signal (kill)
* SIGINT is also handled */
static void
sigterm(int sig)
{
signal(sig, SIG_IGN); /* Ignore this signal while we are quitting */
DPRINTF(E_WARN, L_GENERAL, "received signal %d, good-bye\n", sig);
quitting = 1;
}
static void
sigusr1(int sig)
{
signal(sig, sigusr1);
DPRINTF(E_WARN, L_GENERAL, "received signal %d, clear cache\n", sig);
memset(&clients, '\0', sizeof(clients));
}
static void
sighup(int sig)
{
signal(sig, sighup);
DPRINTF(E_WARN, L_GENERAL, "received signal %d, re-read\n", sig);
reload_ifaces(1);
}
/* record the startup time */
static void
set_startup_time(void)
{
startup_time = time(NULL);
}
static void
getfriendlyname(char *buf, int len)
{
char *p = NULL;
char hn[256];
int off;
if (gethostname(hn, sizeof(hn)) == 0)
{
strncpyt(buf, hn, len);
p = strchr(buf, '.');
if (p)
*p = '\0';
}
else
strcpy(buf, "Unknown");
off = strlen(buf);
off += snprintf(buf+off, len-off, ": ");
#ifdef READYNAS
FILE *info;
char ibuf[64], *key, *val;
snprintf(buf+off, len-off, "ReadyNAS");
info = fopen("/proc/sys/dev/boot/info", "r");
if (!info)
return;
while ((val = fgets(ibuf, 64, info)) != NULL)
{
key = strsep(&val, ": \t");
val = trim(val);
if (strcmp(key, "model") == 0)
{
snprintf(buf+off, len-off, "%s", val);
key = strchr(val, ' ');
if (key)
{
strncpyt(modelnumber, key+1, MODELNUMBER_MAX_LEN);
*key = '\0';
}
snprintf(modelname, MODELNAME_MAX_LEN,
"Windows Media Connect compatible (%s)", val);
}
else if (strcmp(key, "serial") == 0)
{
strncpyt(serialnumber, val, SERIALNUMBER_MAX_LEN);
if (serialnumber[0] == '\0')
{
char mac_str[13];
if (getsyshwaddr(mac_str, sizeof(mac_str)) == 0)
strcpy(serialnumber, mac_str);
else
strcpy(serialnumber, "0");
}
break;
}
}
fclose(info);
#else
char * logname;
logname = getenv("LOGNAME");
#ifndef STATIC // Disable for static linking
if (!logname)
{
struct passwd * pwent;
pwent = getpwuid(getuid());
if (pwent)
logname = pwent->pw_name;
}
#endif
snprintf(buf+off, len-off, "%s", logname?logname:"Unknown");
#endif
}
static time_t
_get_dbtime(void)
{
char path[PATH_MAX];
struct stat st;
snprintf(path, sizeof(path), "%s/files.db", db_path);
if (stat(path, &st) != 0)
return 0;
return st.st_mtime;
}
static int
open_db(sqlite3 **sq3)
{
char path[PATH_MAX];
int new_db = 0;
snprintf(path, sizeof(path), "%s/files.db", db_path);
if (access(path, F_OK) != 0)
{
new_db = 1;
make_dir(db_path, S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO);
}
if (sqlite3_open(path, &db) != SQLITE_OK)
DPRINTF(E_FATAL, L_GENERAL, "ERROR: Failed to open sqlite database! Exiting...\n");
if (sq3)
*sq3 = db;
sqlite3_busy_timeout(db, 5000);
sql_exec(db, "pragma page_size = 4096");
sql_exec(db, "pragma journal_mode = OFF");
sql_exec(db, "pragma synchronous = OFF;");
sql_exec(db, "pragma default_cache_size = 8192;");
return new_db;
}
static void
check_db(sqlite3 *db, int new_db, pid_t *scanner_pid)
{
struct media_dir_s *media_path = NULL;
char cmd[PATH_MAX*2];
char **result;
int i, rows = 0;
int ret;
if (!new_db)
{
/* Check if any new media dirs appeared */
media_path = media_dirs;
while (media_path)
{
ret = sql_get_int_field(db, "SELECT TIMESTAMP as TYPE from DETAILS where PATH = %Q",
media_path->path);
if (ret != media_path->types)
{
ret = 1;
goto rescan;
}
media_path = media_path->next;
}
/* Check if any media dirs disappeared */
sql_get_table(db, "SELECT VALUE from SETTINGS where KEY = 'media_dir'", &result, &rows, NULL);
for (i=1; i <= rows; i++)
{
media_path = media_dirs;
while (media_path)
{
if (strcmp(result[i], media_path->path) == 0)
break;
media_path = media_path->next;
}
if (!media_path)
{
ret = 2;
sqlite3_free_table(result);
goto rescan;
}
}
sqlite3_free_table(result);
}
ret = db_upgrade(db);
if (ret != 0)
{
rescan:
CLEARFLAG(RESCAN_MASK);
if (ret < 0)
DPRINTF(E_WARN, L_GENERAL, "Creating new database at %s/files.db\n", db_path);
else if (ret == 1)
DPRINTF(E_WARN, L_GENERAL, "New media_dir detected; rebuilding...\n");
else if (ret == 2)
DPRINTF(E_WARN, L_GENERAL, "Removed media_dir detected; rebuilding...\n");
else
DPRINTF(E_WARN, L_GENERAL, "Database version mismatch (%d => %d); need to recreate...\n",
ret, DB_VERSION);
sqlite3_close(db);
snprintf(cmd, sizeof(cmd), "rm -rf %s/files.db %s/art_cache", db_path, db_path);
if (system(cmd) != 0)
DPRINTF(E_FATAL, L_GENERAL, "Failed to clean old file cache! Exiting...\n");
open_db(&db);
if (CreateDatabase() != 0)
DPRINTF(E_FATAL, L_GENERAL, "ERROR: Failed to create sqlite database! Exiting...\n");
}
if (ret || GETFLAG(RESCAN_MASK))
{
#if USE_FORK
SETFLAG(SCANNING_MASK);
sqlite3_close(db);
*scanner_pid = fork();
open_db(&db);
if (*scanner_pid == 0) /* child (scanner) process */
{
start_scanner();
sqlite3_close(db);
log_close();
freeoptions();
free(children);
exit(EXIT_SUCCESS);
}
else if (*scanner_pid < 0)
{
start_scanner();
}
#else
start_scanner();
#endif
}
}
static int
writepidfile(const char *fname, int pid, uid_t uid)
{
FILE *pidfile;
struct stat st;
char path[PATH_MAX], *dir;
int ret = 0;
if(!fname || *fname == '\0')
return -1;
/* Create parent directory if it doesn't already exist */
strncpyt(path, fname, sizeof(path));
dir = dirname(path);
if (stat(dir, &st) == 0)
{
if (!S_ISDIR(st.st_mode))
{
DPRINTF(E_ERROR, L_GENERAL, "Pidfile path is not a directory: %s\n",
fname);
return -1;
}
}
else
{
if (make_dir(dir, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) != 0)
{
DPRINTF(E_ERROR, L_GENERAL, "Unable to create pidfile directory: %s\n",
fname);
return -1;
}
if (uid > 0)
{
if (chown(dir, uid, -1) != 0)
DPRINTF(E_WARN, L_GENERAL, "Unable to change pidfile %s ownership: %s\n",
dir, strerror(errno));
}
}
pidfile = fopen(fname, "w");
if (!pidfile)
{
DPRINTF(E_ERROR, L_GENERAL, "Unable to open pidfile for writing %s: %s\n",
fname, strerror(errno));
return -1;
}
if (fprintf(pidfile, "%d\n", pid) <= 0)
{
DPRINTF(E_ERROR, L_GENERAL,
"Unable to write to pidfile %s: %s\n", fname, strerror(errno));
ret = -1;
}
if (uid > 0)
{
if (fchown(fileno(pidfile), uid, -1) != 0)
DPRINTF(E_WARN, L_GENERAL, "Unable to change pidfile %s ownership: %s\n",
fname, strerror(errno));
}
fclose(pidfile);
return ret;
}
static int strtobool(const char *str)
{
return ((strcasecmp(str, "yes") == 0) ||
(strcasecmp(str, "true") == 0) ||
(atoi(str) == 1));
}
static void init_nls(void)
{
#ifdef ENABLE_NLS
const char *messages, *ctype, *locale_dir;
ctype = setlocale(LC_CTYPE, "");
if (!ctype || !strcmp(ctype, "C"))
ctype = setlocale(LC_CTYPE, "en_US.utf8");
if (!ctype)
DPRINTF(E_WARN, L_GENERAL, "Unset locale\n");
else if (!strstr(ctype, "utf8") && !strstr(ctype, "UTF8") &&
!strstr(ctype, "utf-8") && !strstr(ctype, "UTF-8"))
DPRINTF(E_WARN, L_GENERAL, "Using unsupported non-utf8 locale '%s'\n", ctype);
messages = setlocale(LC_MESSAGES, "");
if (!messages)
messages = "unset";
locale_dir = bindtextdomain("minidlna", getenv("TEXTDOMAINDIR"));
DPRINTF(E_DEBUG, L_GENERAL, "Using locale dir '%s' and locale langauge %s/%s\n", locale_dir, messages, ctype);
textdomain("minidlna");
#endif
}
/* init phase :
* 1) read configuration file
* 2) read command line arguments
* 3) daemonize
* 4) check and write pid file
* 5) set startup time stamp
* 6) compute presentation URL
* 7) set signal handlers */
static int
init(int argc, char **argv)
{
int i;
int pid;
int debug_flag = 0;
int verbose_flag = 0;
int options_flag = 0;
struct sigaction sa;
const char * presurl = NULL;
const char * optionsfile = "/etc/minidlna.conf";
char mac_str[13];
char *string, *word;
char *path;
char buf[PATH_MAX];
char log_str[75] = "general,artwork,database,inotify,scanner,metadata,http,ssdp,tivo=warn";
char *log_level = NULL;
struct media_dir_s *media_dir;
int ifaces = 0;
media_types types;
uid_t uid = 0;
gid_t gid = 0;
/* first check if "-f" option is used */
for (i=2; i<argc; i++)
{
if (strcmp(argv[i-1], "-f") == 0)
{
optionsfile = argv[i];
options_flag = 1;
break;
}
}
/* set up uuid based on mac address */
if (getsyshwaddr(mac_str, sizeof(mac_str)) < 0)
{
DPRINTF(E_OFF, L_GENERAL, "No MAC address found. Falling back to generic UUID.\n");
strcpy(mac_str, "554e4b4e4f57");
}
strcpy(uuidvalue+5, "4d696e69-444c-164e-9d41-");
strncat(uuidvalue, mac_str, 12);
getfriendlyname(friendly_name, FRIENDLYNAME_MAX_LEN);
runtime_vars.port = 8200;
runtime_vars.notify_interval = 895; /* seconds between SSDP announces */
runtime_vars.max_connections = 50;
runtime_vars.root_container = NULL;
runtime_vars.ifaces[0] = NULL;
/* read options file first since
* command line arguments have final say */
if (readoptionsfile(optionsfile) < 0)
{
/* only error if file exists or using -f */
if(access(optionsfile, F_OK) == 0 || options_flag)
DPRINTF(E_FATAL, L_GENERAL, "Error reading configuration file %s\n", optionsfile);
}
for (i=0; i<num_options; i++)
{
switch (ary_options[i].id)
{
case UPNPIFNAME:
for (string = ary_options[i].value; (word = strtok(string, ",")); string = NULL)
{
if (ifaces >= MAX_LAN_ADDR)
{
DPRINTF(E_ERROR, L_GENERAL, "Too many interfaces (max: %d), ignoring %s\n",
MAX_LAN_ADDR, word);
break;
}
while (isspace(*word))
word++;
runtime_vars.ifaces[ifaces++] = word;
}
break;
case UPNPPORT:
runtime_vars.port = atoi(ary_options[i].value);
break;
case UPNPPRESENTATIONURL:
presurl = ary_options[i].value;
break;
case UPNPNOTIFY_INTERVAL:
runtime_vars.notify_interval = atoi(ary_options[i].value);
break;
case UPNPSERIAL:
strncpyt(serialnumber, ary_options[i].value, SERIALNUMBER_MAX_LEN);
break;
case UPNPMODEL_NAME:
strncpyt(modelname, ary_options[i].value, MODELNAME_MAX_LEN);
break;
case UPNPMODEL_NUMBER:
strncpyt(modelnumber, ary_options[i].value, MODELNUMBER_MAX_LEN);
break;
case UPNPFRIENDLYNAME:
strncpyt(friendly_name, ary_options[i].value, FRIENDLYNAME_MAX_LEN);
break;
case UPNPMEDIADIR:
types = ALL_MEDIA;
path = ary_options[i].value;
word = strchr(path, ',');
if (word && (access(path, F_OK) != 0))
{
types = 0;
while (*path)
{
if (*path == ',')
{
path++;
break;
}
else if (*path == 'A' || *path == 'a')
types |= TYPE_AUDIO;
else if (*path == 'V' || *path == 'v')
types |= TYPE_VIDEO;
else if (*path == 'P' || *path == 'p')
types |= TYPE_IMAGE;
else
DPRINTF(E_FATAL, L_GENERAL, "Media directory entry not understood [%s]\n",
ary_options[i].value);
path++;
}
}
path = realpath(path, buf);
if (!path || access(path, F_OK) != 0)
{
DPRINTF(E_ERROR, L_GENERAL, "Media directory \"%s\" not accessible [%s]\n",
ary_options[i].value, strerror(errno));
break;
}
media_dir = calloc(1, sizeof(struct media_dir_s));
media_dir->path = strdup(path);
media_dir->types = types;
if (media_dirs)
{
struct media_dir_s *all_dirs = media_dirs;
while( all_dirs->next )
all_dirs = all_dirs->next;
all_dirs->next = media_dir;
}
else
media_dirs = media_dir;
break;
case UPNPALBUMART_NAMES:
for (string = ary_options[i].value; (word = strtok(string, "/")); string = NULL)
{
struct album_art_name_s * this_name = calloc(1, sizeof(struct album_art_name_s));
int len = strlen(word);
if (word[len-1] == '*')
{
word[len-1] = '\0';
this_name->wildcard = 1;
}
this_name->name = strdup(word);
if (album_art_names)
{
struct album_art_name_s * all_names = album_art_names;
while( all_names->next )
all_names = all_names->next;
all_names->next = this_name;
}
else
album_art_names = this_name;
}
break;
case UPNPDBDIR:
path = realpath(ary_options[i].value, buf);
if (!path)
path = (ary_options[i].value);
make_dir(path, S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO);
if (access(path, F_OK) != 0)
DPRINTF(E_FATAL, L_GENERAL, "Database path not accessible! [%s]\n", path);
strncpyt(db_path, path, PATH_MAX);
break;
case UPNPLOGDIR:
path = realpath(ary_options[i].value, buf);
if (!path)
path = (ary_options[i].value);
make_dir(path, S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO);
if (access(path, F_OK) != 0)
DPRINTF(E_FATAL, L_GENERAL, "Log path not accessible! [%s]\n", path);
strncpyt(log_path, path, PATH_MAX);
break;
case UPNPLOGLEVEL:
log_level = ary_options[i].value;
break;
case UPNPINOTIFY:
if (!strtobool(ary_options[i].value))
CLEARFLAG(INOTIFY_MASK);
break;
case ENABLE_TIVO:
if (strtobool(ary_options[i].value))
SETFLAG(TIVO_MASK);
break;
case ENABLE_DLNA_STRICT:
if (strtobool(ary_options[i].value))
SETFLAG(DLNA_STRICT_MASK);
break;
case ROOT_CONTAINER:
switch (ary_options[i].value[0]) {
case '.':
runtime_vars.root_container = NULL;
break;
case 'B':
case 'b':
runtime_vars.root_container = BROWSEDIR_ID;
break;
case 'M':
case 'm':
runtime_vars.root_container = MUSIC_ID;
break;
case 'V':
case 'v':
runtime_vars.root_container = VIDEO_ID;
break;
case 'P':
case 'p':
runtime_vars.root_container = IMAGE_ID;
break;
default:
runtime_vars.root_container = ary_options[i].value;
DPRINTF(E_WARN, L_GENERAL, "Using arbitrary root container [%s]\n",
ary_options[i].value);
break;
}
break;
case UPNPMINISSDPDSOCKET:
minissdpdsocketpath = ary_options[i].value;
break;
case UPNPUUID:
strcpy(uuidvalue+5, ary_options[i].value);
break;
case USER_ACCOUNT:
uid = strtoul(ary_options[i].value, &string, 0);
if (*string)
{
/* Symbolic username given, not UID. */
struct passwd *entry = getpwnam(ary_options[i].value);
if (!entry)
DPRINTF(E_FATAL, L_GENERAL, "Bad user '%s'.\n",
ary_options[i].value);
uid = entry->pw_uid;
}
break;
case FORCE_SORT_CRITERIA:
force_sort_criteria = ary_options[i].value;
break;
case MAX_CONNECTIONS:
runtime_vars.max_connections = atoi(ary_options[i].value);
break;
case MERGE_MEDIA_DIRS:
if (strtobool(ary_options[i].value))
SETFLAG(MERGE_MEDIA_DIRS_MASK);
break;
case WIDE_LINKS:
if (strtobool(ary_options[i].value))
SETFLAG(WIDE_LINKS_MASK);
break;
case TIVO_DISCOVERY:
if (strcasecmp(ary_options[i].value, "beacon") == 0)
CLEARFLAG(TIVO_BONJOUR_MASK);
break;
default:
DPRINTF(E_ERROR, L_GENERAL, "Unknown option in file %s\n",
optionsfile);
}
}
if (log_path[0] == '\0')
{
if (db_path[0] == '\0')
strncpyt(log_path, DEFAULT_LOG_PATH, PATH_MAX);
else
strncpyt(log_path, db_path, PATH_MAX);
}
if (db_path[0] == '\0')
strncpyt(db_path, DEFAULT_DB_PATH, PATH_MAX);
/* command line arguments processing */
for (i=1; i<argc; i++)
{
if (argv[i][0] != '-')
{
DPRINTF(E_FATAL, L_GENERAL, "Unknown option: %s\n", argv[i]);
}
else if (strcmp(argv[i], "--help") == 0)
{
runtime_vars.port = -1;
break;
}
else switch(argv[i][1])
{
case 't':
if (i+1 < argc)
runtime_vars.notify_interval = atoi(argv[++i]);
else
DPRINTF(E_FATAL, L_GENERAL, "Option -%c takes one argument.\n", argv[i][1]);
break;
case 's':
if (i+1 < argc)
strncpyt(serialnumber, argv[++i], SERIALNUMBER_MAX_LEN);
else
DPRINTF(E_FATAL, L_GENERAL, "Option -%c takes one argument.\n", argv[i][1]);
break;
case 'm':
if (i+1 < argc)
strncpyt(modelnumber, argv[++i], MODELNUMBER_MAX_LEN);
else
DPRINTF(E_FATAL, L_GENERAL, "Option -%c takes one argument.\n", argv[i][1]);
break;
case 'p':
if (i+1 < argc)
runtime_vars.port = atoi(argv[++i]);
else
DPRINTF(E_FATAL, L_GENERAL, "Option -%c takes one argument.\n", argv[i][1]);
break;
case 'P':
if (i+1 < argc)
{
if (argv[++i][0] != '/')
DPRINTF(E_FATAL, L_GENERAL, "Option -%c requires an absolute filename.\n", argv[i-1][1]);
else
pidfilename = argv[i];
}
else
DPRINTF(E_FATAL, L_GENERAL, "Option -%c takes one argument.\n", argv[i][1]);
break;
case 'd':
debug_flag = 1;
case 'v':
verbose_flag = 1;
break;
case 'L':
SETFLAG(NO_PLAYLIST_MASK);
break;
case 'w':
if (i+1 < argc)
presurl = argv[++i];
else
DPRINTF(E_FATAL, L_GENERAL, "Option -%c takes one argument.\n", argv[i][1]);
break;
case 'i':
if (i+1 < argc)
{
i++;
if (ifaces >= MAX_LAN_ADDR)
{
DPRINTF(E_ERROR, L_GENERAL, "Too many interfaces (max: %d), ignoring %s\n",
MAX_LAN_ADDR, argv[i]);
break;
}
runtime_vars.ifaces[ifaces++] = argv[i];
}
else
DPRINTF(E_FATAL, L_GENERAL, "Option -%c takes one argument.\n", argv[i][1]);
break;
case 'f':
i++; /* discarding, the config file is already read */
break;
case 'h':
runtime_vars.port = -1; // triggers help display
break;
case 'r':
SETFLAG(RESCAN_MASK);
break;
case 'R':
snprintf(buf, sizeof(buf), "rm -rf %s/files.db %s/art_cache", db_path, db_path);
if (system(buf) != 0)
DPRINTF(E_FATAL, L_GENERAL, "Failed to clean old file cache %s. EXITING\n", db_path);
break;
case 'u':
if (i+1 != argc)
{
i++;
uid = strtoul(argv[i], &string, 0);
if (*string)
{
/* Symbolic username given, not UID. */
struct passwd *entry = getpwnam(argv[i]);
if (!entry)
DPRINTF(E_FATAL, L_GENERAL, "Bad user '%s'.\n", argv[i]);
uid = entry->pw_uid;
}
}
else
DPRINTF(E_FATAL, L_GENERAL, "Option -%c takes one argument.\n", argv[i][1]);
break;
case 'g':
if (i+1 != argc)
{
i++;
gid = strtoul(argv[i], &string, 0);
if (*string)
{
/* Symbolic group given, not GID. */
struct group *grp = getgrnam(argv[i]);
if (!grp)
DPRINTF(E_FATAL, L_GENERAL, "Bad group '%s'.\n", argv[i]);
gid = grp->gr_gid;
}
}
else
DPRINTF(E_FATAL, L_GENERAL, "Option -%c takes one argument.\n", argv[i][1]);
break;
#ifdef __linux__
case 'S':
SETFLAG(SYSTEMD_MASK);
break;
#endif
case 'V':
printf("Version " MINIDLNA_VERSION "\n");
exit(0);
break;
default:
DPRINTF(E_ERROR, L_GENERAL, "Unknown option: %s\n", argv[i]);
runtime_vars.port = -1; // triggers help display
}
}
if (runtime_vars.port <= 0)
{
printf("Usage:\n\t"
"%s [-d] [-v] [-f config_file] [-p port]\n"
"\t\t[-i network_interface] [-u uid_to_run_as] [-g group_to_run_as]\n"
"\t\t[-t notify_interval] [-P pid_filename]\n"
"\t\t[-s serial] [-m model_number]\n"
#ifdef __linux__
"\t\t[-w url] [-r] [-R] [-L] [-S] [-V] [-h]\n"
#else
"\t\t[-w url] [-r] [-R] [-L] [-V] [-h]\n"
#endif
"\nNotes:\n\tNotify interval is in seconds. Default is 895 seconds.\n"
"\tDefault pid file is %s.\n"
"\tWith -d minidlna will run in debug mode (not daemonize).\n"
"\t-w sets the presentation url. Default is http address on port 80\n"
"\t-v enables verbose output\n"
"\t-h displays this text\n"
"\t-r forces a rescan\n"
"\t-R forces a rebuild\n"
"\t-L do not create playlists\n"
#ifdef __linux__
"\t-S changes behaviour for systemd\n"
#endif
"\t-V print the version number\n",
argv[0], pidfilename);
return 1;
}
if (verbose_flag)
{
strcpy(log_str+65, "debug");
log_level = log_str;
}
else if (!log_level)
log_level = log_str;
/* Set the default log file path to NULL (stdout) */
path = NULL;
if (debug_flag)
{
pid = getpid();
strcpy(log_str+65, "maxdebug");
log_level = log_str;
}
else if (GETFLAG(SYSTEMD_MASK))
{
pid = getpid();
}
else
{
pid = process_daemonize();
#ifdef READYNAS
unlink("/ramfs/.upnp-av_scan");
path = "/var/log/upnp-av.log";
#else
if (access(db_path, F_OK) != 0)
make_dir(db_path, S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO);
snprintf(buf, sizeof(buf), "%s/minidlna.log", log_path);
path = buf;
#endif
}
log_init(path, log_level);
if (process_check_if_running(pidfilename) < 0)
{
DPRINTF(E_ERROR, L_GENERAL, SERVER_NAME " is already running. EXITING.\n");
return 1;
}
set_startup_time();
/* presentation url */
if (presurl)
strncpyt(presentationurl, presurl, PRESENTATIONURL_MAX_LEN);
else
strcpy(presentationurl, "/");
/* set signal handlers */
memset(&sa, 0, sizeof(struct sigaction));
sa.sa_handler = sigterm;
if (sigaction(SIGTERM, &sa, NULL))
DPRINTF(E_FATAL, L_GENERAL, "Failed to set %s handler. EXITING.\n", "SIGTERM");
if (sigaction(SIGINT, &sa, NULL))
DPRINTF(E_FATAL, L_GENERAL, "Failed to set %s handler. EXITING.\n", "SIGINT");
if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
DPRINTF(E_FATAL, L_GENERAL, "Failed to set %s handler. EXITING.\n", "SIGPIPE");
if (signal(SIGHUP, &sighup) == SIG_ERR)