code.delx.au - pulseaudio/blob - src/daemon/cmdline.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2004-2006 Lennart Poettering
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <getopt.h>
  30 #include <sys/stat.h>
  31
  32 #include <pulse/xmalloc.h>
  33 #include <pulse/i18n.h>
  34
  35 #include <pulsecore/core-util.h>
  36 #include <pulsecore/strbuf.h>
  37 #include <pulsecore/macro.h>
  38
  39 #include "cmdline.h"
  40
  41 /* Argument codes for getopt_long() */
  42 enum {
  43     ARG_HELP = 256,
  44     ARG_VERSION,
  45     ARG_DUMP_CONF,
  46     ARG_DUMP_MODULES,
  47     ARG_DAEMONIZE,
  48     ARG_FAIL,
  49     ARG_LOG_LEVEL,
  50     ARG_HIGH_PRIORITY,
  51     ARG_REALTIME,
  52     ARG_DISALLOW_MODULE_LOADING,
  53     ARG_DISALLOW_EXIT,
  54     ARG_EXIT_IDLE_TIME,
  55     ARG_MODULE_IDLE_TIME,
  56     ARG_SCACHE_IDLE_TIME,
  57     ARG_LOG_TARGET,
  58     ARG_LOAD,
  59     ARG_FILE,
  60     ARG_DL_SEARCH_PATH,
  61     ARG_RESAMPLE_METHOD,
  62     ARG_KILL,
  63     ARG_USE_PID_FILE,
  64     ARG_CHECK,
  65     ARG_NO_CPU_LIMIT,
  66     ARG_DISABLE_SHM,
  67     ARG_DUMP_RESAMPLE_METHODS,
  68     ARG_SYSTEM,
  69     ARG_CLEANUP_SHM,
  70     ARG_START
  71 };
  72
  73 /* Tabel for getopt_long() */
  74 static const struct option long_options[] = {
  75     {"help",                        0, 0, ARG_HELP},
  76     {"version",                     0, 0, ARG_VERSION},
  77     {"dump-conf",                   0, 0, ARG_DUMP_CONF},
  78     {"dump-modules",                0, 0, ARG_DUMP_MODULES},
  79     {"daemonize",                   2, 0, ARG_DAEMONIZE},
  80     {"fail",                        2, 0, ARG_FAIL},
  81     {"verbose",                     2, 0, ARG_LOG_LEVEL},
  82     {"log-level",                   2, 0, ARG_LOG_LEVEL},
  83     {"high-priority",               2, 0, ARG_HIGH_PRIORITY},
  84     {"realtime",                    2, 0, ARG_REALTIME},
  85     {"disallow-module-loading",     2, 0, ARG_DISALLOW_MODULE_LOADING},
  86     {"disallow-exit",               2, 0, ARG_DISALLOW_EXIT},
  87     {"exit-idle-time",              2, 0, ARG_EXIT_IDLE_TIME},
  88     {"module-idle-time",            2, 0, ARG_MODULE_IDLE_TIME},
  89     {"scache-idle-time",            2, 0, ARG_SCACHE_IDLE_TIME},
  90     {"log-target",                  1, 0, ARG_LOG_TARGET},
  91     {"load",                        1, 0, ARG_LOAD},
  92     {"file",                        1, 0, ARG_FILE},
  93     {"dl-search-path",              1, 0, ARG_DL_SEARCH_PATH},
  94     {"resample-method",             1, 0, ARG_RESAMPLE_METHOD},
  95     {"kill",                        0, 0, ARG_KILL},
  96     {"start",                       0, 0, ARG_START},
  97     {"use-pid-file",                2, 0, ARG_USE_PID_FILE},
  98     {"check",                       0, 0, ARG_CHECK},
  99     {"system",                      2, 0, ARG_SYSTEM},
 100     {"no-cpu-limit",                2, 0, ARG_NO_CPU_LIMIT},
 101     {"disable-shm",                 2, 0, ARG_DISABLE_SHM},
 102     {"dump-resample-methods",       2, 0, ARG_DUMP_RESAMPLE_METHODS},
 103     {"cleanup-shm",                 2, 0, ARG_CLEANUP_SHM},
 104     {NULL, 0, 0, 0}
 105 };
 106
 107 void pa_cmdline_help(const char *argv0) {
 108     const char *e;
 109
 110     pa_assert(argv0);
 111
 112     if ((e = strrchr(argv0, '/')))
 113         e++;
 114     else
 115         e = argv0;
 116
 117     printf(_("%s [options]\n\n"
 118            "COMMANDS:\n"
 119            "  -h, --help                            Show this help\n"
 120            "      --version                         Show version\n"
 121            "      --dump-conf                       Dump default configuration\n"
 122            "      --dump-modules                    Dump list of available modules\n"
 123            "      --dump-resample-methods           Dump available resample methods\n"
 124            "      --cleanup-shm                     Cleanup stale shared memory segments\n"
 125            "      --start                           Start the daemon if it is not running\n"
 126            "  -k  --kill                            Kill a running daemon\n"
 127            "      --check                           Check for a running daemon\n\n"
 128
 129            "OPTIONS:\n"
 130            "      --system[=BOOL]                   Run as system-wide instance\n"
 131            "  -D, --daemonize[=BOOL]                Daemonize after startup\n"
 132            "      --fail[=BOOL]                     Quit when startup fails\n"
 133            "      --high-priority[=BOOL]            Try to set high nice level\n"
 134            "                                        (only available as root, when SUID or\n"
 135            "                                        with elevated RLIMIT_NICE)\n"
 136            "      --realtime[=BOOL]                 Try to enable realtime scheduling\n"
 137            "                                        (only available as root, when SUID or\n"
 138            "                                        with elevated RLIMIT_RTPRIO)\n"
 139            "      --disallow-module-loading[=BOOL]  Disallow module user requested module\n"
 140            "                                        loading/unloading after startup\n"
 141            "      --disallow-exit[=BOOL]            Disallow user requested exit\n"
 142            "      --exit-idle-time=SECS             Terminate the daemon when idle and this\n"
 143            "                                        time passed\n"
 144            "      --module-idle-time=SECS           Unload autoloaded modules when idle and\n"
 145            "                                        this time passed\n"
 146            "      --scache-idle-time=SECS           Unload autoloaded samples when idle and\n"
 147            "                                        this time passed\n"
 148            "      --log-level[=LEVEL]               Increase or set verbosity level\n"
 149            "  -v                                    Increase the verbosity level\n"
 150            "      --log-target={auto,syslog,stderr} Specify the log target\n"
 151            "  -p, --dl-search-path=PATH             Set the search path for dynamic shared\n"
 152            "                                        objects (plugins)\n"
 153            "      --resample-method=METHOD          Use the specified resampling method\n"
 154            "                                        (See --dump-resample-methods for\n"
 155            "                                        possible values)\n"
 156            "      --use-pid-file[=BOOL]             Create a PID file\n"
 157            "      --no-cpu-limit[=BOOL]             Do not install CPU load limiter on\n"
 158            "                                        platforms that support it.\n"
 159            "      --disable-shm[=BOOL]              Disable shared memory support.\n\n"
 160
 161            "STARTUP SCRIPT:\n"
 162            "  -L, --load=\"MODULE ARGUMENTS\"         Load the specified plugin module with\n"
 163            "                                        the specified argument\n"
 164            "  -F, --file=FILENAME                   Run the specified script\n"
 165            "  -C                                    Open a command line on the running TTY\n"
 166            "                                        after startup\n\n"
 167
 168            "  -n                                    Don't load default script file\n"), e);
 169 }
 170
 171 int pa_cmdline_parse(pa_daemon_conf *conf, int argc, char *const argv [], int *d) {
 172     pa_strbuf *buf = NULL;
 173     int c;
 174
 175     pa_assert(conf);
 176     pa_assert(argc > 0);
 177     pa_assert(argv);
 178
 179     buf = pa_strbuf_new();
 180
 181     if (conf->script_commands)
 182         pa_strbuf_puts(buf, conf->script_commands);
 183
 184     while ((c = getopt_long(argc, argv, "L:F:ChDnp:kv", long_options, NULL)) != -1) {
 185         switch (c) {
 186             case ARG_HELP:
 187             case 'h':
 188                 conf->cmd = PA_CMD_HELP;
 189                 break;
 190
 191             case ARG_VERSION:
 192                 conf->cmd = PA_CMD_VERSION;
 193                 break;
 194
 195             case ARG_DUMP_CONF:
 196                 conf->cmd = PA_CMD_DUMP_CONF;
 197                 break;
 198
 199             case ARG_DUMP_MODULES:
 200                 conf->cmd = PA_CMD_DUMP_MODULES;
 201                 break;
 202
 203             case ARG_DUMP_RESAMPLE_METHODS:
 204                 conf->cmd = PA_CMD_DUMP_RESAMPLE_METHODS;
 205                 break;
 206
 207             case ARG_CLEANUP_SHM:
 208                 conf->cmd = PA_CMD_CLEANUP_SHM;
 209                 break;
 210
 211             case 'k':
 212             case ARG_KILL:
 213                 conf->cmd = PA_CMD_KILL;
 214                 break;
 215
 216             case ARG_START:
 217                 conf->cmd = PA_CMD_START;
 218                 conf->daemonize = TRUE;
 219                 break;
 220
 221             case ARG_CHECK:
 222                 conf->cmd = PA_CMD_CHECK;
 223                 break;
 224
 225             case ARG_LOAD:
 226             case 'L':
 227                 pa_strbuf_printf(buf, "load-module %s\n", optarg);
 228                 break;
 229
 230             case ARG_FILE:
 231             case 'F': {
 232                 char *p;
 233                 pa_strbuf_printf(buf, ".include %s\n", p = pa_make_path_absolute(optarg));
 234                 pa_xfree(p);
 235                 break;
 236             }
 237
 238             case 'C':
 239                 pa_strbuf_puts(buf, "load-module module-cli exit_on_eof=1\n");
 240                 break;
 241
 242             case ARG_DAEMONIZE:
 243             case 'D':
 244                 if ((conf->daemonize = optarg ? pa_parse_boolean(optarg) : TRUE) < 0) {
 245                     pa_log(_("--daemonize expects boolean argument"));
 246                     goto fail;
 247                 }
 248                 break;
 249
 250             case ARG_FAIL:
 251                 if ((conf->fail = optarg ? pa_parse_boolean(optarg) : TRUE) < 0) {
 252                     pa_log(_("--fail expects boolean argument"));
 253                     goto fail;
 254                 }
 255                 break;
 256
 257             case 'v':
 258             case ARG_LOG_LEVEL:
 259
 260                 if (optarg) {
 261                     if (pa_daemon_conf_set_log_level(conf, optarg) < 0) {
 262                         pa_log(_("--log-level expects log level argument (either numeric in range 0..4 or one of debug, info, notice, warn, error)."));
 263                         goto fail;
 264                     }
 265                 } else {
 266                     if (conf->log_level < PA_LOG_LEVEL_MAX-1)
 267                         conf->log_level++;
 268                 }
 269
 270                 break;
 271
 272             case ARG_HIGH_PRIORITY:
 273                 if ((conf->high_priority = optarg ? pa_parse_boolean(optarg) : TRUE) < 0) {
 274                     pa_log(_("--high-priority expects boolean argument"));
 275                     goto fail;
 276                 }
 277                 break;
 278
 279             case ARG_REALTIME:
 280                 if ((conf->realtime_scheduling = optarg ? pa_parse_boolean(optarg) : TRUE) < 0) {
 281                     pa_log(_("--realtime expects boolean argument"));
 282                     goto fail;
 283                 }
 284                 break;
 285
 286             case ARG_DISALLOW_MODULE_LOADING:
 287                 if ((conf->disallow_module_loading = optarg ? pa_parse_boolean(optarg) : TRUE) < 0) {
 288                     pa_log(_("--disallow-module-loading expects boolean argument"));
 289                     goto fail;
 290                 }
 291                 break;
 292
 293             case ARG_DISALLOW_EXIT:
 294                 if ((conf->disallow_exit = optarg ? pa_parse_boolean(optarg) : TRUE) < 0) {
 295                     pa_log(_("--disallow-exit boolean argument"));
 296                     goto fail;
 297                 }
 298                 break;
 299
 300             case ARG_USE_PID_FILE:
 301                 if ((conf->use_pid_file = optarg ? pa_parse_boolean(optarg) : TRUE) < 0) {
 302                     pa_log(_("--use-pid-file expects boolean argument"));
 303                     goto fail;
 304                 }
 305                 break;
 306
 307             case 'p':
 308             case ARG_DL_SEARCH_PATH:
 309                 pa_xfree(conf->dl_search_path);
 310                 conf->dl_search_path = *optarg ? pa_xstrdup(optarg) : NULL;
 311                 break;
 312
 313             case 'n':
 314                 conf->load_default_script_file = FALSE;
 315                 break;
 316
 317             case ARG_LOG_TARGET:
 318                 if (pa_daemon_conf_set_log_target(conf, optarg) < 0) {
 319                     pa_log(_("Invalid log target: use either 'syslog', 'stderr' or 'auto'."));
 320                     goto fail;
 321                 }
 322                 break;
 323
 324             case ARG_EXIT_IDLE_TIME:
 325                 conf->exit_idle_time = atoi(optarg);
 326                 break;
 327
 328             case ARG_MODULE_IDLE_TIME:
 329                 conf->module_idle_time = atoi(optarg);
 330                 break;
 331
 332             case ARG_SCACHE_IDLE_TIME:
 333                 conf->scache_idle_time = atoi(optarg);
 334                 break;
 335
 336             case ARG_RESAMPLE_METHOD:
 337                 if (pa_daemon_conf_set_resample_method(conf, optarg) < 0) {
 338                     pa_log(_("Invalid resample method '%s'."), optarg);
 339                     goto fail;
 340                 }
 341                 break;
 342
 343             case ARG_SYSTEM:
 344                 if ((conf->system_instance = optarg ? pa_parse_boolean(optarg) : TRUE) < 0) {
 345                     pa_log(_("--system expects boolean argument"));
 346                     goto fail;
 347                 }
 348                 break;
 349
 350             case ARG_NO_CPU_LIMIT:
 351                 if ((conf->no_cpu_limit = optarg ? pa_parse_boolean(optarg) : TRUE) < 0) {
 352                     pa_log(_("--no-cpu-limit expects boolean argument"));
 353                     goto fail;
 354                 }
 355                 break;
 356
 357             case ARG_DISABLE_SHM:
 358                 if ((conf->disable_shm = optarg ? pa_parse_boolean(optarg) : TRUE) < 0) {
 359                     pa_log(_("--disable-shm expects boolean argument"));
 360                     goto fail;
 361                 }
 362                 break;
 363
 364             default:
 365                 goto fail;
 366         }
 367     }
 368
 369     pa_xfree(conf->script_commands);
 370     conf->script_commands = pa_strbuf_tostring_free(buf);
 371
 372     if (!conf->script_commands) {
 373         pa_xfree(conf->script_commands);
 374         conf->script_commands = NULL;
 375     }
 376
 377     *d = optind;
 378
 379     return 0;
 380
 381 fail:
 382     if (buf)
 383         pa_strbuf_free(buf);
 384
 385     return -1;
 386 }