/* * Shairport, an Apple Airplay receiver * Copyright (c) James Laird 2013 * All rights reserved. * Modifications (c) Mike Brady 2014--2018 * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "config.h" #ifdef HAVE_LIBMBEDTLS #include #endif #ifdef HAVE_LIBPOLARSSL #include #endif #ifdef HAVE_LIBSSL #include #endif #if defined(HAVE_DBUS) #include #endif #if defined(HAVE_DACP_CLIENT) #include "dacp.h" #endif #if defined(HAVE_METADATA_HUB) #include "metadata_hub.h" #endif #ifdef HAVE_DBUS #include "dbus-service.h" #endif #ifdef HAVE_MPRIS #include "mpris-service.h" #endif #include "common.h" #include "mdns.h" #include "rtp.h" #include "rtsp.h" #include #include #include #include #include #ifdef CONFIG_CONVOLUTION #include #endif static int shutting_down = 0; char configuration_file_path[4096 + 1]; char actual_configuration_file_path[4096 + 1]; void shairport_shutdown() { if (shutting_down) return; shutting_down = 1; mdns_unregister(); rtsp_request_shutdown_stream(); if (config.output) config.output->deinit(); } static void sig_ignore(__attribute__((unused)) int foo, __attribute__((unused)) siginfo_t *bar, __attribute__((unused)) void *baz) {} static void sig_shutdown(__attribute__((unused)) int foo, __attribute__((unused)) siginfo_t *bar, __attribute__((unused)) void *baz) { debug(1, "shutdown requested..."); shairport_shutdown(); // daemon_log(LOG_NOTICE, "exit..."); daemon_retval_send(255); daemon_pid_file_remove(); exit(0); } static void sig_child(__attribute__((unused)) int foo, __attribute__((unused)) siginfo_t *bar, __attribute__((unused)) void *baz) { pid_t pid; while ((pid = waitpid((pid_t)-1, 0, WNOHANG)) > 0) { if (pid == mdns_pid && !shutting_down) { die("MDNS child process died unexpectedly!"); } } } static void sig_disconnect_audio_output(__attribute__((unused)) int foo, __attribute__((unused)) siginfo_t *bar, __attribute__((unused)) void *baz) { debug(1, "disconnect audio output requested."); set_requested_connection_state_to_output(0); } static void sig_connect_audio_output(__attribute__((unused)) int foo, __attribute__((unused)) siginfo_t *bar, __attribute__((unused)) void *baz) { debug(1, "connect audio output requested."); set_requested_connection_state_to_output(1); } void print_version(void) { char *version_string = get_version_string(); if (version_string) { printf("%s\n", version_string); free(version_string); } else { debug(1, "Can't print version string!"); } } void usage(char *progname) { printf("Usage: %s [options...]\n", progname); printf(" or: %s [options...] -- [audio output-specific options]\n", progname); printf("\n"); printf("Options:\n"); printf(" -h, --help show this help.\n"); printf(" -d, --daemon daemonise.\n"); printf(" -j, --justDaemoniseNoPIDFile daemonise without a PID file.\n"); printf(" -V, --version show version information.\n"); printf(" -k, --kill kill the existing shairport daemon.\n"); printf(" -D, --disconnectFromOutput disconnect immediately from the output device.\n"); printf(" -R, --reconnectToOutput reconnect to the output device.\n"); printf(" -c, --configfile=FILE read configuration settings from FILE. Default is " "/etc/shairport-sync.conf.\n"); printf("\n"); printf("The following general options are for backward compatibility. These and all new options " "have settings in the configuration file, by default /etc/shairport-sync.conf:\n"); printf(" -v, --verbose -v print debug information; -vv more; -vvv lots.\n"); printf(" -p, --port=PORT set RTSP listening port.\n"); printf(" -a, --name=NAME set advertised name.\n"); printf(" -L, --latency=FRAMES [Deprecated] Set the latency for audio sent from an unknown " "device.\n"); printf(" The default is to set it automatically.\n"); printf(" The default is to set it automatically.\n"); printf(" -S, --stuffing=MODE set how to adjust current latency to match desired latency, " "where \n"); printf(" \"basic\" (default) inserts or deletes audio frames from " "packet frames with low processor overhead, and \n"); printf(" \"soxr\" uses libsoxr to minimally resample packet frames -- " "moderate processor overhead.\n"); printf( " \"soxr\" option only available if built with soxr support.\n"); printf(" -B, --on-start=PROGRAM run PROGRAM when playback is about to begin.\n"); printf(" -E, --on-stop=PROGRAM run PROGRAM when playback has ended.\n"); printf(" For -B and -E options, specify the full path to the program, " "e.g. /usr/bin/logger.\n"); printf( " Executable scripts work, but must have the appropriate shebang " "(#!/bin/sh) in the headline.\n"); printf( " -w, --wait-cmd wait until the -B or -E programs finish before continuing.\n"); printf(" -o, --output=BACKEND select audio output method.\n"); printf(" -m, --mdns=BACKEND force the use of BACKEND to advertize the service.\n"); printf(" if no mdns provider is specified,\n"); printf(" shairport tries them all until one works.\n"); printf(" -r, --resync=THRESHOLD [Deprecated] resync if error exceeds this number of frames. " "Set to 0 to " "stop resyncing.\n"); printf(" -t, --timeout=SECONDS go back to idle mode from play mode after a break in " "communications of this many seconds (default 120). Set to 0 never to exit play mode.\n"); printf(" --statistics print some interesting statistics -- output to the logfile " "if running as a daemon.\n"); printf(" --tolerance=TOLERANCE [Deprecated] allow a synchronization error of TOLERANCE " "frames (default " "88) before trying to correct it.\n"); printf(" --password=PASSWORD require PASSWORD to connect. Default is not to require a " "password.\n"); printf(" --logOutputLevel log the output level setting -- useful for setting maximum " "volume.\n"); #ifdef CONFIG_METADATA printf(" --metadata-pipename=PIPE send metadata to PIPE, e.g. " "--metadata-pipename=/tmp/shairport-sync-metadata.\n"); printf(" The default is /tmp/shairport-sync-metadata.\n"); printf(" --get-coverart send cover art through the metadata pipe.\n"); #endif printf("\n"); mdns_ls_backends(); printf("\n"); audio_ls_outputs(); } int parse_options(int argc, char **argv) { // there are potential memory leaks here -- it's called a second time, previously allocated // strings will dangle. char *raw_service_name = NULL; /* Used to pick up the service name before possibly expanding it */ char *stuffing = NULL; /* used for picking up the stuffing option */ signed char c; /* used for argument parsing */ // int i = 0; /* used for tracking options */ int fResyncthreshold = (int)(config.resyncthreshold * 44100); int fTolerance = (int)(config.tolerance * 44100); poptContext optCon; /* context for parsing command-line options */ int daemonisewith = 0; int daemonisewithout = 0; struct poptOption optionsTable[] = { {"verbose", 'v', POPT_ARG_NONE, NULL, 'v', NULL, NULL}, {"disconnectFromOutput", 'D', POPT_ARG_NONE, NULL, 0, NULL, NULL}, {"reconnectToOutput", 'R', POPT_ARG_NONE, NULL, 0, NULL, NULL}, {"kill", 'k', POPT_ARG_NONE, NULL, 0, NULL, NULL}, {"daemon", 'd', POPT_ARG_NONE, &daemonisewith, 0, NULL, NULL}, {"justDaemoniseNoPIDFile", 'j', POPT_ARG_NONE, &daemonisewithout, 0, NULL, NULL}, {"configfile", 'c', POPT_ARG_STRING, &config.configfile, 0, NULL, NULL}, {"statistics", 0, POPT_ARG_NONE, &config.statistics_requested, 0, NULL, NULL}, {"logOutputLevel", 0, POPT_ARG_NONE, &config.logOutputLevel, 0, NULL, NULL}, {"version", 'V', POPT_ARG_NONE, NULL, 0, NULL, NULL}, {"port", 'p', POPT_ARG_INT, &config.port, 0, NULL, NULL}, {"name", 'a', POPT_ARG_STRING, &raw_service_name, 0, NULL, NULL}, {"output", 'o', POPT_ARG_STRING, &config.output_name, 0, NULL, NULL}, {"on-start", 'B', POPT_ARG_STRING, &config.cmd_start, 0, NULL, NULL}, {"on-stop", 'E', POPT_ARG_STRING, &config.cmd_stop, 0, NULL, NULL}, {"wait-cmd", 'w', POPT_ARG_NONE, &config.cmd_blocking, 0, NULL, NULL}, {"mdns", 'm', POPT_ARG_STRING, &config.mdns_name, 0, NULL, NULL}, {"latency", 'L', POPT_ARG_INT, &config.userSuppliedLatency, 0, NULL, NULL}, {"stuffing", 'S', POPT_ARG_STRING, &stuffing, 'S', NULL, NULL}, {"resync", 'r', POPT_ARG_INT, &fResyncthreshold, 0, NULL, NULL}, {"timeout", 't', POPT_ARG_INT, &config.timeout, 't', NULL, NULL}, {"password", 0, POPT_ARG_STRING, &config.password, 0, NULL, NULL}, {"tolerance", 'z', POPT_ARG_INT, &fTolerance, 0, NULL, NULL}, #ifdef CONFIG_METADATA {"metadata-pipename", 'M', POPT_ARG_STRING, &config.metadata_pipename, 'M', NULL, NULL}, {"get-coverart", 'g', POPT_ARG_NONE, &config.get_coverart, 'g', NULL, NULL}, #endif POPT_AUTOHELP{NULL, 0, 0, NULL, 0, NULL, NULL}}; // we have to parse the command line arguments to look for a config file int optind; optind = argc; int j; for (j = 0; j < argc; j++) if (strcmp(argv[j], "--") == 0) optind = j; optCon = poptGetContext(NULL, optind, (const char **)argv, optionsTable, 0); if (optCon == NULL) die("Can not get a secondary popt context."); poptSetOtherOptionHelp(optCon, "[OPTIONS]* "); /* Now do options processing just to get a debug level */ debuglev = 0; while ((c = poptGetNextOpt(optCon)) >= 0) { switch (c) { case 'v': debuglev++; break; case 'D': inform("Warning: the option -D or --disconnectFromOutput is deprecated."); break; case 'R': inform("Warning: the option -R or --reconnectToOutput is deprecated."); break; case 'A': inform("Warning: the option -A or --AirPlayLatency is deprecated and ignored. This setting " "is now " "automatically received from the AirPlay device."); break; case 'i': inform("Warning: the option -i or --iTunesLatency is deprecated and ignored. This setting is " "now " "automatically received from iTunes"); break; case 'f': inform( "Warning: the option --forkedDaapdLatency is deprecated and ignored. This setting is now " "automatically received from forkedDaapd"); break; case 'r': inform("Warning: the option -r or --resync is deprecated. Please use the " "\"resync_threshold_in_seconds\" setting in the config file instead."); break; case 'z': inform("Warning: the option --tolerance is deprecated. Please use the " "\"drift_tolerance_in_seconds\" setting in the config file instead."); break; } } if (c < -1) { die("%s: %s", poptBadOption(optCon, POPT_BADOPTION_NOALIAS), poptStrerror(c)); } poptFreeContext(optCon); if ((daemonisewith) && (daemonisewithout)) die("Select either daemonize_with_pid_file or daemonize_without_pid_file -- you have selected " "both!"); if ((daemonisewith) || (daemonisewithout)) { config.daemonise = 1; if (daemonisewith) config.daemonise_store_pid = 1; }; config.resyncthreshold = 1.0 * fResyncthreshold / 44100; config.tolerance = 1.0 * fTolerance / 44100; config.audio_backend_silent_lead_in_time = -1.0; // flag to indicate it has not been set config.airplay_volume = -18.0; // if no volume is ever set, default to initial default value if // nothing else comes in first. config.fixedLatencyOffset = 11025; // this sounds like it works properly. config.diagnostic_drop_packet_fraction = 0.0; #ifdef HAVE_METADATA_HUB config.cover_art_cache_dir = "/tmp/shairport-sync/.cache/coverart"; config.scan_interval_when_active = 1; // number of seconds between DACP server scans when playing something config.scan_interval_when_inactive = 3; // number of seconds between DACP server scans playing nothing config.scan_max_bad_response_count = 5; // number of successive bad results to ignore before giving up config.scan_max_inactive_count = (15 * 60) / config.scan_interval_when_inactive; // number of scans to do before stopping if // not made active again (15 minutes) // config.scan_max_inactive_count = 5; // number of scans to do before stopping if not made active // again (15 minutes ) #endif // config_setting_t *setting; const char *str = 0; int value = 0; double dvalue = 0.0; // debug(1, "Looking for the configuration file \"%s\".", config.configfile); config_init(&config_file_stuff); char *config_file_real_path = realpath(config.configfile, NULL); if (config_file_real_path == NULL) { debug(2, "Can't resolve the configuration file \"%s\".", config.configfile); } else { debug(2, "Looking for configuration file at full path \"%s\"", config_file_real_path); /* Read the file. If there is an error, report it and exit. */ if (config_read_file(&config_file_stuff, config_file_real_path)) { // make config.cfg point to it config.cfg = &config_file_stuff; /* Get the Service Name. */ if (config_lookup_string(config.cfg, "general.name", &str)) { raw_service_name = (char *)str; } int daemonisewithout = 0; int daemonisewith = 0; /* Get the Daemonize setting. */ if (config_lookup_string(config.cfg, "sessioncontrol.daemonize_with_pid_file", &str)) { if (strcasecmp(str, "no") == 0) daemonisewith = 0; else if (strcasecmp(str, "yes") == 0) daemonisewith = 1; else die("Invalid daemonize_with_pid_file option choice \"%s\". It should be \"yes\" or " "\"no\""); } /* Get the Just_Daemonize setting. */ if (config_lookup_string(config.cfg, "sessioncontrol.daemonize_without_pid_file", &str)) { if (strcasecmp(str, "no") == 0) daemonisewithout = 0; else if (strcasecmp(str, "yes") == 0) daemonisewithout = 1; else die("Invalid daemonize_without_pid_file option choice \"%s\". It should be \"yes\" or " "\"no\""); } if ((daemonisewith) && (daemonisewithout)) die("Select either daemonize_with_pid_file or daemonize_without_pid_file -- you have " "selected both!"); if ((daemonisewith) || (daemonisewithout)) { config.daemonise = 1; if (daemonisewith) config.daemonise_store_pid = 1; } /* Get the directory path for the pid file created when the program is daemonised. */ if (config_lookup_string(config.cfg, "sessioncontrol.daemon_pid_dir", &str)) config.piddir = (char *)str; /* Get the mdns_backend setting. */ if (config_lookup_string(config.cfg, "general.mdns_backend", &str)) config.mdns_name = (char *)str; /* Get the output_backend setting. */ if (config_lookup_string(config.cfg, "general.output_backend", &str)) config.output_name = (char *)str; /* Get the port setting. */ if (config_lookup_int(config.cfg, "general.port", &value)) { if ((value < 0) || (value > 65535)) die("Invalid port number \"%sd\". It should be between 0 and 65535, default is 5000", value); else config.port = value; } /* Get the udp port base setting. */ if (config_lookup_int(config.cfg, "general.udp_port_base", &value)) { if ((value < 0) || (value > 65535)) die("Invalid port number \"%sd\". It should be between 0 and 65535, default is 6001", value); else config.udp_port_base = value; } /* Get the udp port range setting. This is number of ports that will be tried for free ports , * starting at the port base. Only three ports are needed. */ if (config_lookup_int(config.cfg, "general.udp_port_range", &value)) { if ((value < 0) || (value > 65535)) die("Invalid port range \"%sd\". It should be between 0 and 65535, default is 100", value); else config.udp_port_range = value; } /* Get the password setting. */ if (config_lookup_string(config.cfg, "general.password", &str)) config.password = (char *)str; if (config_lookup_string(config.cfg, "general.interpolation", &str)) { if (strcasecmp(str, "basic") == 0) config.packet_stuffing = ST_basic; else if (strcasecmp(str, "soxr") == 0) #ifdef HAVE_LIBSOXR config.packet_stuffing = ST_soxr; #else die("The soxr option not available because this version of shairport-sync was built " "without libsoxr " "support. Change the \"general/interpolation\" setting in the configuration file."); #endif else die("Invalid interpolation option choice. It should be \"basic\" or \"soxr\""); } /* Get the statistics setting. */ if (config_lookup_string(config.cfg, "general.statistics", &str)) { warn("The \"general\" \"statistics\" setting is deprecated. Please use the \"diagnostics\" " "\"statistics\" setting instead."); if (strcasecmp(str, "no") == 0) config.statistics_requested = 0; else if (strcasecmp(str, "yes") == 0) config.statistics_requested = 1; else die("Invalid statistics option choice \"%s\". It should be \"yes\" or \"no\""); } /* The old drift tolerance setting. */ if (config_lookup_int(config.cfg, "general.drift", &value)) { inform("The drift setting is deprecated. Use " "drift_tolerance_in_seconds instead"); config.tolerance = 1.0 * value / 44100; } /* The old resync setting. */ if (config_lookup_int(config.cfg, "general.resync_threshold", &value)) { inform("The resync_threshold setting is deprecated. Use " "resync_threshold_in_seconds instead"); config.resyncthreshold = 1.0 * value / 44100; } /* Get the drift tolerance setting. */ if (config_lookup_float(config.cfg, "general.drift_tolerance_in_seconds", &dvalue)) config.tolerance = dvalue; /* Get the resync setting. */ if (config_lookup_float(config.cfg, "general.resync_threshold_in_seconds", &dvalue)) config.resyncthreshold = dvalue; /* Get the verbosity setting. */ if (config_lookup_int(config.cfg, "general.log_verbosity", &value)) { warn("The \"general\" \"log_verbosity\" setting is deprecated. Please use the " "\"diagnostics\" \"log_verbosity\" setting instead."); if ((value >= 0) && (value <= 3)) debuglev = value; else die("Invalid log verbosity setting option choice \"%d\". It should be between 0 and 3, " "inclusive.", value); } /* Get the verbosity setting. */ if (config_lookup_int(config.cfg, "diagnostics.log_verbosity", &value)) { if ((value >= 0) && (value <= 3)) debuglev = value; else die("Invalid diagnostics log_verbosity setting option choice \"%d\". It should be " "between 0 and 3, " "inclusive.", value); } /* Get the show elapsed time in debug messages setting. */ if (config_lookup_string(config.cfg, "diagnostics.log_show_time_since_startup", &str)) { if (strcasecmp(str, "no") == 0) config.debugger_show_elapsed_time = 0; else if (strcasecmp(str, "yes") == 0) config.debugger_show_elapsed_time = 1; else die("Invalid diagnostics log_show_time_since_startup option choice \"%s\". It should be " "\"yes\" or \"no\""); } /* Get the show relative time in debug messages setting. */ if (config_lookup_string(config.cfg, "diagnostics.log_show_time_since_last_message", &str)) { if (strcasecmp(str, "no") == 0) config.debugger_show_relative_time = 0; else if (strcasecmp(str, "yes") == 0) config.debugger_show_relative_time = 1; else die("Invalid diagnostics log_show_time_since_last_message option choice \"%s\". It " "should be \"yes\" or \"no\""); } /* Get the statistics setting. */ if (config_lookup_string(config.cfg, "diagnostics.statistics", &str)) { if (strcasecmp(str, "no") == 0) config.statistics_requested = 0; else if (strcasecmp(str, "yes") == 0) config.statistics_requested = 1; else die("Invalid diagnostics statistics option choice \"%s\". It should be \"yes\" or " "\"no\""); } /* Get the disable_resend_requests setting. */ if (config_lookup_string(config.cfg, "diagnostics.disable_resend_requests", &str)) { config.disable_resend_requests = 0; // this is for legacy -- only set by -t 0 if (strcasecmp(str, "no") == 0) config.disable_resend_requests = 0; else if (strcasecmp(str, "yes") == 0) config.disable_resend_requests = 1; else die("Invalid diagnostic disable_resend_requests option choice \"%s\". It should be " "\"yes\" " "or \"no\""); } /* Get the drop packets setting. */ if (config_lookup_float(config.cfg, "diagnostics.drop_this_fraction_of_audio_packets", &dvalue)) { if ((dvalue >= 0.0) && (dvalue <= 3.0)) config.diagnostic_drop_packet_fraction = dvalue; else die("Invalid diagnostics drop_this_fraction_of_audio_packets setting \"%d\". It should " "be " "between 0.0 and 1.0, " "inclusive.", dvalue); } /* Get the ignore_volume_control setting. */ if (config_lookup_string(config.cfg, "general.ignore_volume_control", &str)) { if (strcasecmp(str, "no") == 0) config.ignore_volume_control = 0; else if (strcasecmp(str, "yes") == 0) config.ignore_volume_control = 1; else die("Invalid ignore_volume_control option choice \"%s\". It should be \"yes\" or \"no\""); } /* Get the optional volume_max_db setting. */ if (config_lookup_float(config.cfg, "general.volume_max_db", &dvalue)) { // debug(1, "Max volume setting of %f dB", dvalue); config.volume_max_db = dvalue; config.volume_max_db_set = 1; } if (config_lookup_string(config.cfg, "general.run_this_when_volume_is_set", &str)) { config.cmd_set_volume = (char *)str; } /* Get the playback_mode setting */ if (config_lookup_string(config.cfg, "general.playback_mode", &str)) { if (strcasecmp(str, "stereo") == 0) config.playback_mode = ST_stereo; else if (strcasecmp(str, "mono") == 0) config.playback_mode = ST_mono; else if (strcasecmp(str, "reverse stereo") == 0) config.playback_mode = ST_reverse_stereo; else if (strcasecmp(str, "both left") == 0) config.playback_mode = ST_left_only; else if (strcasecmp(str, "both right") == 0) config.playback_mode = ST_right_only; else die("Invalid playback_mode choice \"%s\". It should be \"stereo\" (default), \"mono\", " "\"reverse stereo\", \"both left\", \"both right\""); } /* Get the volume control profile setting -- "standard" or "flat" */ if (config_lookup_string(config.cfg, "general.volume_control_profile", &str)) { if (strcasecmp(str, "standard") == 0) config.volume_control_profile = VCP_standard; else if (strcasecmp(str, "flat") == 0) config.volume_control_profile = VCP_flat; else die("Invalid volume_control_profile choice \"%s\". It should be \"standard\" (default) " "or \"flat\""); } /* Get the interface to listen on, if specified Default is all interfaces */ /* we keep the interface name and the index */ if (config_lookup_string(config.cfg, "general.interface", &str)) config.interface = strdup(str); if (config_lookup_string(config.cfg, "general.interface", &str)) { int specified_interface_found = 0; struct if_nameindex *if_ni, *i; if_ni = if_nameindex(); if (if_ni == NULL) { debug(1, "Can't get a list of interface names."); } else { for (i = if_ni; !(i->if_index == 0 && i->if_name == NULL); i++) { // printf("%u: %s\n", i->if_index, i->if_name); if (strcmp(i->if_name, str) == 0) { config.interface_index = i->if_index; specified_interface_found = 1; } } } if_freenameindex(if_ni); if (specified_interface_found == 0) { inform( "The mdns service interface \"%s\" was not found, so the setting has been ignored.", config.interface); free(config.interface); config.interface = NULL; config.interface_index = 0; } } /* Get the regtype -- the service type and protocol, separated by a dot. Default is * "_raop._tcp" */ if (config_lookup_string(config.cfg, "general.regtype", &str)) config.regtype = strdup(str); /* Get the volume range, in dB, that should be used If not set, it means you just use the * range set by the mixer. */ if (config_lookup_int(config.cfg, "general.volume_range_db", &value)) { if ((value < 30) || (value > 150)) die("Invalid volume range \"%sd\". It should be between 30 and 150 dB. Zero means use " "the mixer's native range", value); else config.volume_range_db = value; } /* Get the alac_decoder setting. */ if (config_lookup_string(config.cfg, "general.alac_decoder", &str)) { if (strcasecmp(str, "hammerton") == 0) config.use_apple_decoder = 0; else if (strcasecmp(str, "apple") == 0) { if ((config.decoders_supported & 1 << decoder_apple_alac) != 0) config.use_apple_decoder = 1; else inform("Support for the Apple ALAC decoder has not been compiled into this version of " "Shairport Sync. The default decoder will be used."); } else die("Invalid alac_decoder option choice \"%s\". It should be \"hammerton\" or \"apple\""); } /* Get the default latency. Deprecated! */ if (config_lookup_int(config.cfg, "latencies.default", &value)) config.userSuppliedLatency = value; #ifdef CONFIG_METADATA /* Get the metadata setting. */ if (config_lookup_string(config.cfg, "metadata.enabled", &str)) { if (strcasecmp(str, "no") == 0) config.metadata_enabled = 0; else if (strcasecmp(str, "yes") == 0) config.metadata_enabled = 1; else die("Invalid metadata enabled option choice \"%s\". It should be \"yes\" or \"no\""); } if (config_lookup_string(config.cfg, "metadata.include_cover_art", &str)) { if (strcasecmp(str, "no") == 0) config.get_coverart = 0; else if (strcasecmp(str, "yes") == 0) config.get_coverart = 1; else die("Invalid metadata include_cover_art option choice \"%s\". It should be \"yes\" or " "\"no\""); } if (config_lookup_string(config.cfg, "metadata.pipe_name", &str)) { config.metadata_pipename = (char *)str; } if (config_lookup_string(config.cfg, "metadata.socket_address", &str)) { config.metadata_sockaddr = (char *)str; } if (config_lookup_int(config.cfg, "metadata.socket_port", &value)) { config.metadata_sockport = value; } config.metadata_sockmsglength = 500; if (config_lookup_int(config.cfg, "metadata.socket_msglength", &value)) { config.metadata_sockmsglength = value < 500 ? 500 : value > 65000 ? 65000 : value; } #endif if (config_lookup_string(config.cfg, "sessioncontrol.run_this_before_play_begins", &str)) { config.cmd_start = (char *)str; } if (config_lookup_string(config.cfg, "sessioncontrol.run_this_after_play_ends", &str)) { config.cmd_stop = (char *)str; } if (config_lookup_string(config.cfg, "sessioncontrol.wait_for_completion", &str)) { if (strcasecmp(str, "no") == 0) config.cmd_blocking = 0; else if (strcasecmp(str, "yes") == 0) config.cmd_blocking = 1; else die("Invalid session control wait_for_completion option choice \"%s\". It should be " "\"yes\" or \"no\""); } if (config_lookup_string(config.cfg, "sessioncontrol.before_play_begins_returns_output", &str)) { if (strcasecmp(str, "no") == 0) config.cmd_start_returns_output = 0; else if (strcasecmp(str, "yes") == 0) config.cmd_start_returns_output = 1; else die("Invalid session control before_play_begins_returns_output option choice \"%s\". It " "should be " "\"yes\" or \"no\""); } if (config_lookup_string(config.cfg, "sessioncontrol.allow_session_interruption", &str)) { config.dont_check_timeout = 0; // this is for legacy -- only set by -t 0 if (strcasecmp(str, "no") == 0) config.allow_session_interruption = 0; else if (strcasecmp(str, "yes") == 0) config.allow_session_interruption = 1; else die("Invalid session control allow_interruption option choice \"%s\". It should be " "\"yes\" " "or \"no\""); } if (config_lookup_int(config.cfg, "sessioncontrol.session_timeout", &value)) { config.timeout = value; config.dont_check_timeout = 0; // this is for legacy -- only set by -t 0 } #ifdef CONFIG_CONVOLUTION if (config_lookup_string(config.cfg, "dsp.convolution", &str)) { if (strcasecmp(str, "no") == 0) config.convolution = 0; else if (strcasecmp(str, "yes") == 0) config.convolution = 1; else die("Invalid dsp.convolution. It should be \"yes\" or \"no\""); } if (config_lookup_float(config.cfg, "dsp.convolution_gain", &dvalue)) { config.convolution_gain = dvalue; if (dvalue > 10 || dvalue < -50) die("Invalid value \"%f\" for dsp.convolution_gain. It should be between -50 and +10 dB", dvalue); } config.convolution_max_length = 8192; if (config_lookup_int(config.cfg, "dsp.convolution_max_length", &value)) { config.convolution_max_length = value; if (value < 1 || value > 200000) die("dsp.convolution_max_length must be within 1 and 200000"); } if (config_lookup_string(config.cfg, "dsp.convolution_ir_file", &str)) { config.convolution_ir_file = str; convolver_init(config.convolution_ir_file, config.convolution_max_length); } if (config.convolution && config.convolution_ir_file == NULL) { die("Convolution enabled but no convolution_ir_file provided"); } #endif if (config_lookup_string(config.cfg, "dsp.loudness", &str)) { if (strcasecmp(str, "no") == 0) config.loudness = 0; else if (strcasecmp(str, "yes") == 0) config.loudness = 1; else die("Invalid dsp.convolution. It should be \"yes\" or \"no\""); } config.loudness_reference_volume_db = -20; if (config_lookup_float(config.cfg, "dsp.loudness_reference_volume_db", &dvalue)) { config.loudness_reference_volume_db = dvalue; if (dvalue > 0 || dvalue < -100) die("Invalid value \"%f\" for dsp.loudness_reference_volume_db. It should be between " "-100 and 0", dvalue); } if (config.loudness == 1 && config_lookup_string(config.cfg, "alsa.mixer_control_name", &str)) die("Loudness activated but hardware volume is active. You must remove " "\"alsa.mixer_control_name\" to use the loudness filter."); } else { if (config_error_type(&config_file_stuff) == CONFIG_ERR_FILE_IO) debug(1, "Error reading configuration file \"%s\": \"%s\".", config_error_file(&config_file_stuff), config_error_text(&config_file_stuff)); else { die("Line %d of the configuration file \"%s\":\n%s", config_error_line(&config_file_stuff), config_error_file(&config_file_stuff), config_error_text(&config_file_stuff)); } } #if defined(HAVE_DBUS) /* Get the dbus service sbus setting. */ if (config_lookup_string(config.cfg, "general.dbus_service_bus", &str)) { if (strcasecmp(str, "system") == 0) config.dbus_service_bus_type = DBT_system; else if (strcasecmp(str, "session") == 0) config.dbus_service_bus_type = DBT_session; else die("Invalid dbus_service_bus option choice \"%s\". It should be \"system\" (default) or " "\"session\""); } #endif #if defined(HAVE_MPRIS) /* Get the mpris service sbus setting. */ if (config_lookup_string(config.cfg, "general.mpris_service_bus", &str)) { if (strcasecmp(str, "system") == 0) config.mpris_service_bus_type = DBT_system; else if (strcasecmp(str, "session") == 0) config.mpris_service_bus_type = DBT_session; else die("Invalid mpris_service_bus option choice \"%s\". It should be \"system\" (default) or " "\"session\""); } #endif free(config_file_real_path); } // now, do the command line options again, but this time do them fully -- it's a unix convention // that command line // arguments have precedence over configuration file settings. optind = argc; for (j = 0; j < argc; j++) if (strcmp(argv[j], "--") == 0) optind = j; optCon = poptGetContext(NULL, optind, (const char **)argv, optionsTable, 0); if (optCon == NULL) die("Can not get a popt context."); poptSetOtherOptionHelp(optCon, "[OPTIONS]* "); /* Now do options processing, get portname */ int tdebuglev = 0; while ((c = poptGetNextOpt(optCon)) >= 0) { switch (c) { case 'v': tdebuglev++; break; case 't': if (config.timeout == 0) { config.dont_check_timeout = 1; config.allow_session_interruption = 1; } else { config.dont_check_timeout = 0; config.allow_session_interruption = 0; } break; #ifdef CONFIG_METADATA case 'M': config.metadata_enabled = 1; break; case 'g': if (config.metadata_enabled == 0) die("If you want to get cover art, you must also select the --metadata-pipename option."); break; #endif case 'S': if (strcmp(stuffing, "basic") == 0) config.packet_stuffing = ST_basic; else if (strcmp(stuffing, "soxr") == 0) #ifdef HAVE_LIBSOXR config.packet_stuffing = ST_soxr; #else die("The soxr option not available because this version of shairport-sync was built " "without libsoxr " "support. Change the -S option setting."); #endif else die("Illegal stuffing option \"%s\" -- must be \"basic\" or \"soxr\"", stuffing); break; } } if (c < -1) { die("%s: %s", poptBadOption(optCon, POPT_BADOPTION_NOALIAS), poptStrerror(c)); } poptFreeContext(optCon); #ifdef CONFIG_METADATA if ((config.metadata_enabled == 1) && (config.metadata_pipename == NULL)) config.metadata_pipename = strdup("/tmp/shairport-sync-metadata"); #endif /* if the regtype hasn't been set, do it now */ if (config.regtype == NULL) config.regtype = strdup("_raop._tcp"); if (tdebuglev != 0) debuglev = tdebuglev; /* if the Service Name wasn't specified, do it now */ if (raw_service_name == NULL) raw_service_name = strdup("%H"); // now, do the substitutions in the service name char hostname[100]; gethostname(hostname, 100); char *i1 = str_replace(raw_service_name, "%h", hostname); if (raw_service_name) { free(raw_service_name); raw_service_name = NULL; } if ((hostname[0] >= 'a') && (hostname[0] <= 'z')) hostname[0] = hostname[0] - 0x20; // convert a lowercase first letter into a capital letter char *i2 = str_replace(i1, "%H", hostname); char *i3 = str_replace(i2, "%v", PACKAGE_VERSION); char *vs = get_version_string(); config.service_name = str_replace(i3, "%V", vs); free(i1); free(i2); free(i3); free(vs); // now, check and calculate the pid directory #ifdef USE_CUSTOM_PID_DIR char *use_this_pid_dir = PIDDIR; #else char *use_this_pid_dir = "/var/run/shairport-sync"; #endif // debug(1,"config.piddir \"%s\".",config.piddir); if (config.piddir) use_this_pid_dir = config.piddir; if (use_this_pid_dir) config.computed_piddir = strdup(use_this_pid_dir); return optind + 1; } #if defined(HAVE_DBUS) || defined(HAVE_MPRIS) GMainLoop *loop; pthread_t dbus_thread; void *dbus_thread_func(__attribute__((unused)) void *arg) { loop = g_main_loop_new(NULL, FALSE); g_main_loop_run(loop); return NULL; } #endif void signal_setup(void) { // mask off all signals before creating threads. // this way we control which thread gets which signals. // for now, we don't care which thread gets the following. sigset_t set; sigfillset(&set); sigdelset(&set, SIGINT); sigdelset(&set, SIGTERM); sigdelset(&set, SIGHUP); sigdelset(&set, SIGSTOP); sigdelset(&set, SIGCHLD); sigdelset(&set, SIGUSR2); pthread_sigmask(SIG_BLOCK, &set, NULL); // SIGUSR1 is used to interrupt a thread if blocked in pselect pthread_sigmask(SIG_SETMASK, NULL, &pselect_sigset); sigdelset(&pselect_sigset, SIGUSR1); // setting this to SIG_IGN would prevent signalling any threads. struct sigaction sa; memset(&sa, 0, sizeof(sa)); sa.sa_flags = SA_SIGINFO; sa.sa_sigaction = &sig_ignore; sigaction(SIGUSR1, &sa, NULL); sa.sa_flags = SA_SIGINFO | SA_RESTART; sa.sa_sigaction = &sig_shutdown; sigaction(SIGINT, &sa, NULL); sigaction(SIGTERM, &sa, NULL); sa.sa_sigaction = &sig_disconnect_audio_output; sigaction(SIGUSR2, &sa, NULL); sa.sa_sigaction = &sig_connect_audio_output; sigaction(SIGHUP, &sa, NULL); sa.sa_sigaction = &sig_child; sigaction(SIGCHLD, &sa, NULL); } // forked daemon lets the spawner know it's up and running OK // should be called only once! void shairport_startup_complete(void) { if (config.daemonise) { // daemon_ready(); } } char pid_file_path_string[4096] = "\0"; const char *pid_file_proc(void) { snprintf(pid_file_path_string, sizeof(pid_file_path_string), "%s/%s.pid", config.computed_piddir, daemon_pid_file_ident ? daemon_pid_file_ident : "unknown"); // debug(1,"pid_file_path_string \"%s\".",pid_file_path_string); return pid_file_path_string; } void exit_function() { // debug(1, "exit function called..."); if (config.cfg) config_destroy(config.cfg); if (config.appName) free(config.appName); // probably should be freeing malloc'ed memory here, including strdup-created strings... } int main(int argc, char **argv) { fp_time_at_startup = get_absolute_time_in_fp(); fp_time_at_last_debug_message = fp_time_at_startup; // debug(1,"startup"); daemon_set_verbosity(LOG_DEBUG); memset(&config, 0, sizeof(config)); // also clears all strings, BTW atexit(exit_function); // this is a bit weird, but apparently necessary char *basec = strdup(argv[0]); char *bname = basename(basec); config.appName = strdup(bname); if (config.appName == NULL) die("can not allocate memory for the app name!"); free(basec); // set defaults // get thje endianness union { uint32_t u32; uint8_t arr[4]; } xn; xn.arr[0] = 0x44; /* Lowest-address byte */ xn.arr[1] = 0x33; xn.arr[2] = 0x22; xn.arr[3] = 0x11; /* Highest-address byte */ if (xn.u32 == 0x11223344) endianness = SS_LITTLE_ENDIAN; else if (xn.u32 == 0x33441122) endianness = SS_PDP_ENDIAN; else if (xn.u32 == 0x44332211) endianness = SS_BIG_ENDIAN; else die("Can not recognise the endianness of the processor."); // set non-zero / non-NULL default values here // but note that audio back ends also have a chance to set defaults strcpy(configuration_file_path, SYSCONFDIR); // strcat(configuration_file_path, "/shairport-sync"); // thinking about adding a special // shairport-sync directory strcat(configuration_file_path, "/"); strcat(configuration_file_path, config.appName); strcat(configuration_file_path, ".conf"); config.configfile = configuration_file_path; // config.statistics_requested = 0; // don't print stats in the log // config.userSuppliedLatency = 0; // zero means none supplied config.resyncthreshold = 0.05; // 50 ms config.timeout = 120; // this number of seconds to wait for [more] audio before switching to idle. config.tolerance = 0.002; // this number of seconds of timing error before attempting to correct it. config.buffer_start_fill = 220; config.port = 5000; config.packet_stuffing = ST_basic; // simple interpolation or deletion // char hostname[100]; // gethostname(hostname, 100); // config.service_name = malloc(20 + 100); // snprintf(config.service_name, 20 + 100, "Shairport Sync on %s", hostname); set_requested_connection_state_to_output( 1); // we expect to be able to connect to the output device config.audio_backend_buffer_desired_length = 6615; // 0.15 seconds. config.udp_port_base = 6001; config.udp_port_range = 100; config.output_format = SPS_FORMAT_S16; // default config.output_rate = 44100; // default config.decoders_supported = 1 << decoder_hammerton; // David Hammerton's decoder supported by default #ifdef HAVE_APPLE_ALAC config.decoders_supported += 1 << decoder_apple_alac; #endif // initialise random number generator r64init(0); // initialise the randomw number array r64arrayinit(); /* Check if we are called with -V or --version parameter */ if (argc >= 2 && ((strcmp(argv[1], "-V") == 0) || (strcmp(argv[1], "--version") == 0))) { print_version(); exit(1); } /* Check if we are called with -h or --help parameter */ if (argc >= 2 && ((strcmp(argv[1], "-h") == 0) || (strcmp(argv[1], "--help") == 0))) { usage(argv[0]); exit(1); } pid_t pid; /* Reset signal handlers */ if (daemon_reset_sigs(-1) < 0) { daemon_log(LOG_ERR, "Failed to reset all signal handlers: %s", strerror(errno)); return 1; } /* Unblock signals */ if (daemon_unblock_sigs(-1) < 0) { daemon_log(LOG_ERR, "Failed to unblock all signals: %s", strerror(errno)); return 1; } /* Set indentification string for the daemon for both syslog and PID file */ daemon_pid_file_ident = daemon_log_ident = daemon_ident_from_argv0(argv[0]); daemon_pid_file_proc = pid_file_proc; /* Check if we are called with -D or --disconnectFromOutput parameter */ if (argc >= 2 && ((strcmp(argv[1], "-D") == 0) || (strcmp(argv[1], "--disconnectFromOutput") == 0))) { if ((pid = daemon_pid_file_is_running()) >= 0) { if (kill(pid, SIGUSR2) != 0) { // try to send the signal daemon_log(LOG_WARNING, "Failed trying to send disconnectFromOutput command to daemon pid: %d: %s", pid, strerror(errno)); } } else { daemon_log(LOG_WARNING, "Can't send a disconnectFromOutput request -- Failed to find daemon: %s", strerror(errno)); } exit(1); } /* Check if we are called with -R or --reconnectToOutput parameter */ if (argc >= 2 && ((strcmp(argv[1], "-R") == 0) || (strcmp(argv[1], "--reconnectToOutput") == 0))) { if ((pid = daemon_pid_file_is_running()) >= 0) { if (kill(pid, SIGHUP) != 0) { // try to send the signal daemon_log(LOG_WARNING, "Failed trying to send reconnectToOutput command to daemon pid: %d: %s", pid, strerror(errno)); } } else { daemon_log(LOG_WARNING, "Can't send a reconnectToOutput request -- Failed to find daemon: %s", strerror(errno)); } exit(1); } // parse arguments into config -- needed to locate pid_dir int audio_arg = parse_options(argc, argv); /* Check if we are called with -k or --kill parameter */ if (argc >= 2 && ((strcmp(argv[1], "-k") == 0) || (strcmp(argv[1], "--kill") == 0))) { int ret; /* Kill daemon with SIGTERM */ /* Check if the new function daemon_pid_file_kill_wait() is available, if it is, use it. */ if ((ret = daemon_pid_file_kill_wait(SIGTERM, 5)) < 0) daemon_log(LOG_WARNING, "Failed to kill daemon: %s", strerror(errno)); else daemon_pid_file_remove(); return ret < 0 ? 1 : 0; } /* If we are going to daemonise, check that the daemon is not running already.*/ if ((config.daemonise) && ((pid = daemon_pid_file_is_running()) >= 0)) { daemon_log(LOG_ERR, "Daemon already running on PID file %u", pid); return 1; } // mDNS supports maximum of 63-character names (we append 13). if (strlen(config.service_name) > 50) { warn("Supplied name too long (max 50 characters)"); config.service_name[50] = '\0'; // truncate it and carry on... } /* here, daemonise with libdaemon */ if (config.daemonise) { /* Prepare for return value passing from the initialization procedure of the daemon process */ if (daemon_retval_init() < 0) { daemon_log(LOG_ERR, "Failed to create pipe."); return 1; } /* Do the fork */ if ((pid = daemon_fork()) < 0) { /* Exit on error */ daemon_retval_done(); return 1; } else if (pid) { /* The parent */ int ret; /* Wait for 20 seconds for the return value passed from the daemon process */ if ((ret = daemon_retval_wait(20)) < 0) { daemon_log(LOG_ERR, "Could not receive return value from daemon process: %s", strerror(errno)); return 255; } switch (ret) { case 0: break; case 1: daemon_log(LOG_ERR, "daemon failed to launch: could not close open file descriptors after forking."); break; case 2: daemon_log(LOG_ERR, "daemon failed to launch: could not create PID file."); break; case 3: daemon_log(LOG_ERR, "daemon failed to launch: could not create or access PID directory."); break; default: daemon_log(LOG_ERR, "daemon failed to launch, error %i.", ret); } return ret; } else { /* The daemon */ /* Close FDs */ if (daemon_close_all(-1) < 0) { daemon_log(LOG_ERR, "Failed to close all file descriptors: %s", strerror(errno)); /* Send the error condition to the parent process */ daemon_retval_send(1); goto finish; } /* Create the PID file if required */ if (config.daemonise_store_pid) { /* Create the PID directory if required -- we don't really care about the result */ printf("PID directory is \"%s\".", config.computed_piddir); int result = mkpath(config.computed_piddir, 0700); if ((result != 0) && (result != -EEXIST)) { // error creating or accessing the PID file directory daemon_retval_send(3); goto finish; } if (daemon_pid_file_create() < 0) { daemon_log(LOG_ERR, "Could not create PID file (%s).", strerror(errno)); daemon_retval_send(2); goto finish; } } /* Send OK to parent process */ daemon_retval_send(0); } /* end libdaemon stuff */ } signal_setup(); // make sure the program can create files that group and world can read umask(S_IWGRP | S_IWOTH); config.output = audio_get_output(config.output_name); if (!config.output) { audio_ls_outputs(); die("Invalid audio output specified!"); } config.output->init(argc - audio_arg, argv + audio_arg); // daemon_log(LOG_NOTICE, "startup"); switch (endianness) { case SS_LITTLE_ENDIAN: debug(2, "The processor is running little-endian."); break; case SS_BIG_ENDIAN: debug(2, "The processor is running big-endian."); break; case SS_PDP_ENDIAN: debug(2, "The processor is running pdp-endian."); break; } /* Mess around with the latency options */ // Basically, we expect the source to set the latency and add a fixed offset of 11025 frames to // it, which sounds right // If this latency is outside the max and min latensies that may be set by the source, clamp it to // fit. // If they specify a non-standard latency, we suggest the user to use the // audio_backend_latency_offset instead. if (config.userSuppliedLatency) { inform("The fixed latency setting is deprecated, as Shairport Sync gets the correct " "latency automatically from the source."); inform("Use the audio_backend_latency_offset_in_seconds setting " "instead to compensate for timing issues."); if ((config.userSuppliedLatency != 0) && ((config.userSuppliedLatency < 4410) || (config.userSuppliedLatency > BUFFER_FRAMES * 352 - 22050))) die("An out-of-range fixed latency has been specified. It must be between 4410 and %d (at " "44100 frames per second).", BUFFER_FRAMES * 352 - 22050); } /* print out version */ char *version_dbs = get_version_string(); if (version_dbs) { debug(1, "Version: \"%s\"", version_dbs); free(version_dbs); } else { debug(1, "Can't print the version information!"); } /* Print out options */ debug(1, "statistics_requester status is %d.", config.statistics_requested); debug(1, "daemon status is %d.", config.daemonise); debug(1, "deamon pid file path is \"%s\".", pid_file_proc()); debug(1, "rtsp listening port is %d.", config.port); debug(1, "udp base port is %d.", config.udp_port_base); debug(1, "udp port range is %d.", config.udp_port_range); debug(1, "player name is \"%s\".", config.service_name); debug(1, "backend is \"%s\".", config.output_name); debug(1, "on-start action is \"%s\".", config.cmd_start); debug(1, "on-stop action is \"%s\".", config.cmd_stop); debug(1, "wait-cmd status is %d.", config.cmd_blocking); debug(1, "on-start returns output is %d.", config.cmd_start_returns_output); debug(1, "mdns backend \"%s\".", config.mdns_name); debug(2, "userSuppliedLatency is %d.", config.userSuppliedLatency); debug(1, "stuffing option is \"%d\" (0-basic, 1-soxr).", config.packet_stuffing); debug(1, "resync time is %f seconds.", config.resyncthreshold); debug(1, "allow a session to be interrupted: %d.", config.allow_session_interruption); debug(1, "busy timeout time is %d.", config.timeout); debug(1, "drift tolerance is %f seconds.", config.tolerance); debug(1, "password is \"%s\".", config.password); debug(1, "ignore_volume_control is %d.", config.ignore_volume_control); if (config.volume_max_db_set) debug(1, "volume_max_db is %d.", config.volume_max_db); else debug(1, "volume_max_db is not set"); debug(1, "playback_mode is %d (0-stereo, 1-mono, 1-reverse_stereo, 2-both_left, 3-both_right).", config.playback_mode); debug(1, "disable_synchronization is %d.", config.no_sync); debug(1, "use_mmap_if_available is %d.", config.no_mmap ? 0 : 1); debug(1, "output_rate is %d.", config.output_rate); debug(1, "output_format is %d (0-unknown, 1-S8, 2-U8, 3-S16, 4-S24, 5-S24_3LE, 6-S24_3BE, 7-S32).", config.output_format); debug(1, "audio backend desired buffer length is %f seconds.", config.audio_backend_buffer_desired_length); debug(1, "audio backend latency offset is %f seconds.", config.audio_backend_latency_offset); debug(1, "audio backend silence lead-in time is %f seconds. A value -1.0 means use the default.", config.audio_backend_silent_lead_in_time); debug(1, "volume range in dB (zero means use the range specified by the mixer): %u.", config.volume_range_db); debug(1, "zeroconf regtype is \"%s\".", config.regtype); debug(1, "decoders_supported field is %d.", config.decoders_supported); debug(1, "use_apple_decoder is %d.", config.use_apple_decoder); debug(1, "alsa_use_hardware_mute is %d.", config.alsa_use_hardware_mute); if (config.interface) debug(1, "mdns service interface \"%s\" requested.", config.interface); else debug(1, "no special mdns service interface was requested."); char *realConfigPath = realpath(config.configfile, NULL); if (realConfigPath) { debug(1, "configuration file name \"%s\" resolves to \"%s\".", config.configfile, realConfigPath); free(realConfigPath); } else { debug(1, "configuration file name \"%s\" can not be resolved.", config.configfile); } #ifdef CONFIG_METADATA debug(1, "metadata enabled is %d.", config.metadata_enabled); debug(1, "metadata pipename is \"%s\".", config.metadata_pipename); debug(1, "metadata socket address is \"%s\" port %d.", config.metadata_sockaddr, config.metadata_sockport); debug(1, "metadata socket packet size is \"%d\".", config.metadata_sockmsglength); debug(1, "get-coverart is %d.", config.get_coverart); #endif #ifdef CONFIG_CONVOLUTION debug(1, "convolution is %d.", config.convolution); debug(1, "convolution IR file is \"%s\"", config.convolution_ir_file); debug(1, "convolution max length %d", config.convolution_max_length); debug(1, "convolution gain is %f", config.convolution_gain); #endif debug(1, "loudness is %d.", config.loudness); debug(1, "loudness reference level is %f", config.loudness_reference_volume_db); debug(1, "disable resend requests is %s.", config.disable_resend_requests ? "on" : "off"); debug(1, "diagnostic_drop_packet_fraction is %f. A value of 0.0 means no packets will be dropped " "deliberately.", config.diagnostic_drop_packet_fraction); uint8_t ap_md5[16]; #ifdef HAVE_LIBSSL MD5_CTX ctx; MD5_Init(&ctx); MD5_Update(&ctx, config.service_name, strlen(config.service_name)); MD5_Final(ap_md5, &ctx); #endif #ifdef HAVE_LIBMBEDTLS mbedtls_md5_context tctx; mbedtls_md5_starts(&tctx); mbedtls_md5_update(&tctx, (unsigned char *)config.service_name, strlen(config.service_name)); mbedtls_md5_finish(&tctx, ap_md5); #endif #ifdef HAVE_LIBPOLARSSL md5_context tctx; md5_starts(&tctx); md5_update(&tctx, (unsigned char *)config.service_name, strlen(config.service_name)); md5_finish(&tctx, ap_md5); #endif memcpy(config.hw_addr, ap_md5, sizeof(config.hw_addr)); #ifdef CONFIG_METADATA metadata_init(); // create the metadata pipe if necessary #endif #ifdef HAVE_METADATA_HUB // debug(1, "Initialising metadata hub"); metadata_hub_init(); #endif #ifdef HAVE_DACP_CLIENT // debug(1, "Requesting DACP Monitor"); dacp_monitor_start(); #endif #if defined(HAVE_DBUS) || defined(HAVE_MPRIS) // Start up DBUS services after initial settings are all made // debug(1, "Starting up D-Bus services"); pthread_create(&dbus_thread, NULL, &dbus_thread_func, NULL); #ifdef HAVE_DBUS start_dbus_service(); #endif #ifdef HAVE_MPRIS start_mpris_service(); #endif #endif // daemon_log(LOG_INFO, "Successful Startup"); rtsp_listen_loop(); // should not reach this... shairport_shutdown(); finish: daemon_log(LOG_NOTICE, "Unexpected exit..."); daemon_retval_send(255); daemon_pid_file_remove(); return 1; }