src/daemon/daemon-conf.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2004-2006 Lennart Poettering
   7   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   8
   9   PulseAudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as published
  11   by the Free Software Foundation; either version 2 of the License,
  12   or (at your option) any later version.
  13
  14   PulseAudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with PulseAudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include <config.h>
  27 #endif
  28
  29 #include <errno.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <unistd.h>
  33 #include <sched.h>
  34
  35 #include <pulse/xmalloc.h>
  36
  37 #include <pulsecore/core-error.h>
  38 #include <pulsecore/core-util.h>
  39 #include <pulsecore/strbuf.h>
  40 #include <pulsecore/conf-parser.h>
  41 #include <pulsecore/resampler.h>
  42 #include <pulsecore/macro.h>
  43
  44 #include "daemon-conf.h"
  45
  46 #define DEFAULT_SCRIPT_FILE PA_DEFAULT_CONFIG_DIR PA_PATH_SEP "default.pa"
  47 #define DEFAULT_SCRIPT_FILE_USER PA_PATH_SEP "default.pa"
  48 #define DEFAULT_CONFIG_FILE PA_DEFAULT_CONFIG_DIR PA_PATH_SEP "daemon.conf"
  49 #define DEFAULT_CONFIG_FILE_USER PA_PATH_SEP "daemon.conf"
  50
  51 #define ENV_SCRIPT_FILE "PULSE_SCRIPT"
  52 #define ENV_CONFIG_FILE "PULSE_CONFIG"
  53 #define ENV_DL_SEARCH_PATH "PULSE_DLPATH"
  54
  55 static const pa_daemon_conf default_conf = {
  56     .cmd = PA_CMD_DAEMON,
  57     .daemonize = FALSE,
  58     .fail = TRUE,
  59     .high_priority = TRUE,
  60     .nice_level = -11,
  61     .realtime_scheduling = FALSE,
  62     .realtime_priority = 5,  /* Half of JACK's default rtprio */
  63     .disallow_module_loading = FALSE,
  64     .exit_idle_time = -1,
  65     .module_idle_time = 20,
  66     .scache_idle_time = 20,
  67     .auto_log_target = 1,
  68     .script_commands = NULL,
  69     .dl_search_path = NULL,
  70     .default_script_file = NULL,
  71     .log_target = PA_LOG_SYSLOG,
  72     .log_level = PA_LOG_NOTICE,
  73     .resample_method = PA_RESAMPLER_AUTO,
  74     .disable_remixing = FALSE,
  75     .config_file = NULL,
  76     .use_pid_file = TRUE,
  77     .system_instance = FALSE,
  78     .no_cpu_limit = FALSE,
  79     .disable_shm = FALSE,
  80     .default_n_fragments = 4,
  81     .default_fragment_size_msec = 25,
  82     .default_sample_spec = { .format = PA_SAMPLE_S16NE, .rate = 44100, .channels = 2 }
  83 #ifdef HAVE_SYS_RESOURCE_H
  84     , .rlimit_as = { .value = 0, .is_set = FALSE },
  85     .rlimit_core = { .value = 0, .is_set = FALSE },
  86     .rlimit_data = { .value = 0, .is_set = FALSE },
  87     .rlimit_fsize = { .value = 0, .is_set = FALSE },
  88     .rlimit_nofile = { .value = 256, .is_set = TRUE },
  89     .rlimit_stack = { .value = 0, .is_set = FALSE }
  90 #ifdef RLIMIT_NPROC
  91     , .rlimit_nproc = { .value = 0, .is_set = FALSE }
  92 #endif
  93 #ifdef RLIMIT_MEMLOCK
  94     , .rlimit_memlock = { .value = 0, .is_set = FALSE }
  95 #endif
  96 #ifdef RLIMIT_NICE
  97     , .rlimit_nice = { .value = 31, .is_set = TRUE }     /* nice level of -11 */
  98 #endif
  99 #ifdef RLIMIT_RTPRIO
 100     , .rlimit_rtprio = { .value = 9, .is_set = TRUE }      /* One below JACK's default for the server */
 101 #endif
 102 #endif
 103 };
 104
 105 pa_daemon_conf* pa_daemon_conf_new(void) {
 106     FILE *f;
 107     pa_daemon_conf *c = pa_xnewdup(pa_daemon_conf, &default_conf, 1);
 108
 109     if ((f = pa_open_config_file(DEFAULT_SCRIPT_FILE, DEFAULT_SCRIPT_FILE_USER, ENV_SCRIPT_FILE, &c->default_script_file, "r")))
 110         fclose(f);
 111
 112     c->dl_search_path = pa_xstrdup(PA_DLSEARCHPATH);
 113     return c;
 114 }
 115
 116 void pa_daemon_conf_free(pa_daemon_conf *c) {
 117     pa_assert(c);
 118     pa_xfree(c->script_commands);
 119     pa_xfree(c->dl_search_path);
 120     pa_xfree(c->default_script_file);
 121     pa_xfree(c->config_file);
 122     pa_xfree(c);
 123 }
 124
 125 int pa_daemon_conf_set_log_target(pa_daemon_conf *c, const char *string) {
 126     pa_assert(c);
 127     pa_assert(string);
 128
 129     if (!strcmp(string, "auto"))
 130         c->auto_log_target = 1;
 131     else if (!strcmp(string, "syslog")) {
 132         c->auto_log_target = 0;
 133         c->log_target = PA_LOG_SYSLOG;
 134     } else if (!strcmp(string, "stderr")) {
 135         c->auto_log_target = 0;
 136         c->log_target = PA_LOG_STDERR;
 137     } else
 138         return -1;
 139
 140     return 0;
 141 }
 142
 143 int pa_daemon_conf_set_log_level(pa_daemon_conf *c, const char *string) {
 144     uint32_t u;
 145     pa_assert(c);
 146     pa_assert(string);
 147
 148     if (pa_atou(string, &u) >= 0) {
 149         if (u >= PA_LOG_LEVEL_MAX)
 150             return -1;
 151
 152         c->log_level = (pa_log_level_t) u;
 153     } else if (pa_startswith(string, "debug"))
 154         c->log_level = PA_LOG_DEBUG;
 155     else if (pa_startswith(string, "info"))
 156         c->log_level = PA_LOG_INFO;
 157     else if (pa_startswith(string, "notice"))
 158         c->log_level = PA_LOG_NOTICE;
 159     else if (pa_startswith(string, "warn"))
 160         c->log_level = PA_LOG_WARN;
 161     else if (pa_startswith(string, "err"))
 162         c->log_level = PA_LOG_ERROR;
 163     else
 164         return -1;
 165
 166     return 0;
 167 }
 168
 169 int pa_daemon_conf_set_resample_method(pa_daemon_conf *c, const char *string) {
 170     int m;
 171     pa_assert(c);
 172     pa_assert(string);
 173
 174     if ((m = pa_parse_resample_method(string)) < 0)
 175         return -1;
 176
 177     c->resample_method = m;
 178     return 0;
 179 }
 180
 181 static int parse_log_target(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 182     pa_daemon_conf *c = data;
 183
 184     pa_assert(filename);
 185     pa_assert(lvalue);
 186     pa_assert(rvalue);
 187     pa_assert(data);
 188
 189     if (pa_daemon_conf_set_log_target(c, rvalue) < 0) {
 190         pa_log("[%s:%u] Invalid log target '%s'.", filename, line, rvalue);
 191         return -1;
 192     }
 193
 194     return 0;
 195 }
 196
 197 static int parse_log_level(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 198     pa_daemon_conf *c = data;
 199
 200     pa_assert(filename);
 201     pa_assert(lvalue);
 202     pa_assert(rvalue);
 203     pa_assert(data);
 204
 205     if (pa_daemon_conf_set_log_level(c, rvalue) < 0) {
 206         pa_log("[%s:%u] Invalid log level '%s'.", filename, line, rvalue);
 207         return -1;
 208     }
 209
 210     return 0;
 211 }
 212
 213 static int parse_resample_method(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 214     pa_daemon_conf *c = data;
 215
 216     pa_assert(filename);
 217     pa_assert(lvalue);
 218     pa_assert(rvalue);
 219     pa_assert(data);
 220
 221     if (pa_daemon_conf_set_resample_method(c, rvalue) < 0) {
 222         pa_log("[%s:%u] Invalid resample method '%s'.", filename, line, rvalue);
 223         return -1;
 224     }
 225
 226     return 0;
 227 }
 228
 229 static int parse_rlimit(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 230 #ifdef HAVE_SYS_RESOURCE_H
 231     struct pa_rlimit *r = data;
 232
 233     pa_assert(filename);
 234     pa_assert(lvalue);
 235     pa_assert(rvalue);
 236     pa_assert(r);
 237
 238     if (rvalue[strspn(rvalue, "\t ")] == 0) {
 239         /* Empty string */
 240         r->is_set = 0;
 241         r->value = 0;
 242     } else {
 243         int32_t k;
 244         if (pa_atoi(rvalue, &k) < 0) {
 245             pa_log("[%s:%u] Invalid rlimit '%s'.", filename, line, rvalue);
 246             return -1;
 247         }
 248         r->is_set = k >= 0;
 249         r->value = k >= 0 ? (rlim_t) k : 0;
 250     }
 251 #else
 252     pa_log_warn("[%s:%u] rlimit not supported on this platform.", filename, line);
 253 #endif
 254
 255     return 0;
 256 }
 257
 258 static int parse_sample_format(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 259     pa_daemon_conf *c = data;
 260     pa_sample_format_t f;
 261
 262     pa_assert(filename);
 263     pa_assert(lvalue);
 264     pa_assert(rvalue);
 265     pa_assert(data);
 266
 267     if ((f = pa_parse_sample_format(rvalue)) < 0) {
 268         pa_log("[%s:%u] Invalid sample format '%s'.", filename, line, rvalue);
 269         return -1;
 270     }
 271
 272     c->default_sample_spec.format = f;
 273     return 0;
 274 }
 275
 276 static int parse_sample_rate(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 277     pa_daemon_conf *c = data;
 278     int32_t r;
 279
 280     pa_assert(filename);
 281     pa_assert(lvalue);
 282     pa_assert(rvalue);
 283     pa_assert(data);
 284
 285     if (pa_atoi(rvalue, &r) < 0 || r > PA_RATE_MAX || r <= 0) {
 286         pa_log("[%s:%u] Invalid sample rate '%s'.", filename, line, rvalue);
 287         return -1;
 288     }
 289
 290     c->default_sample_spec.rate = r;
 291     return 0;
 292 }
 293
 294 static int parse_sample_channels(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 295     pa_daemon_conf *c = data;
 296     int32_t n;
 297
 298     pa_assert(filename);
 299     pa_assert(lvalue);
 300     pa_assert(rvalue);
 301     pa_assert(data);
 302
 303     if (pa_atoi(rvalue, &n) < 0 || n > PA_CHANNELS_MAX || n <= 0) {
 304         pa_log("[%s:%u] Invalid sample channels '%s'.", filename, line, rvalue);
 305         return -1;
 306     }
 307
 308     c->default_sample_spec.channels = (uint8_t) n;
 309     return 0;
 310 }
 311
 312 static int parse_fragments(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 313     pa_daemon_conf *c = data;
 314     int32_t n;
 315
 316     pa_assert(filename);
 317     pa_assert(lvalue);
 318     pa_assert(rvalue);
 319     pa_assert(data);
 320
 321     if (pa_atoi(rvalue, &n) < 0 || n < 2) {
 322         pa_log("[%s:%u] Invalid number of fragments '%s'.", filename, line, rvalue);
 323         return -1;
 324     }
 325
 326     c->default_n_fragments = (unsigned) n;
 327     return 0;
 328 }
 329
 330 static int parse_fragment_size_msec(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 331     pa_daemon_conf *c = data;
 332     int32_t n;
 333
 334     pa_assert(filename);
 335     pa_assert(lvalue);
 336     pa_assert(rvalue);
 337     pa_assert(data);
 338
 339     if (pa_atoi(rvalue, &n) < 0 || n < 1) {
 340         pa_log("[%s:%u] Invalid fragment size '%s'.", filename, line, rvalue);
 341         return -1;
 342     }
 343
 344     c->default_fragment_size_msec = (unsigned) n;
 345     return 0;
 346 }
 347
 348 static int parse_nice_level(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 349     pa_daemon_conf *c = data;
 350     int32_t level;
 351
 352     pa_assert(filename);
 353     pa_assert(lvalue);
 354     pa_assert(rvalue);
 355     pa_assert(data);
 356
 357     if (pa_atoi(rvalue, &level) < 0 || level < -20 || level > 19) {
 358         pa_log("[%s:%u] Invalid nice level '%s'.", filename, line, rvalue);
 359         return -1;
 360     }
 361
 362     c->nice_level = (int) level;
 363     return 0;
 364 }
 365
 366 static int parse_rtprio(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 367     pa_daemon_conf *c = data;
 368     int32_t rtprio;
 369
 370     pa_assert(filename);
 371     pa_assert(lvalue);
 372     pa_assert(rvalue);
 373     pa_assert(data);
 374
 375     if (pa_atoi(rvalue, &rtprio) < 0 || rtprio < sched_get_priority_min(SCHED_FIFO) || rtprio > sched_get_priority_max(SCHED_FIFO)) {
 376         pa_log("[%s:%u] Invalid realtime priority '%s'.", filename, line, rvalue);
 377         return -1;
 378     }
 379
 380     c->realtime_priority = (int) rtprio;
 381     return 0;
 382 }
 383
 384 int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
 385     int r = -1;
 386     FILE *f = NULL;
 387
 388     pa_config_item table[] = {
 389         { "daemonize",                  pa_config_parse_bool,     NULL },
 390         { "fail",                       pa_config_parse_bool,     NULL },
 391         { "high-priority",              pa_config_parse_bool,     NULL },
 392         { "realtime-scheduling",        pa_config_parse_bool,     NULL },
 393         { "disallow-module-loading",    pa_config_parse_bool,     NULL },
 394         { "use-pid-file",               pa_config_parse_bool,     NULL },
 395         { "system-instance",            pa_config_parse_bool,     NULL },
 396         { "no-cpu-limit",               pa_config_parse_bool,     NULL },
 397         { "disable-shm",                pa_config_parse_bool,     NULL },
 398         { "exit-idle-time",             pa_config_parse_int,      NULL },
 399         { "module-idle-time",           pa_config_parse_int,      NULL },
 400         { "scache-idle-time",           pa_config_parse_int,      NULL },
 401         { "realtime-priority",          parse_rtprio,             NULL },
 402         { "dl-search-path",             pa_config_parse_string,   NULL },
 403         { "default-script-file",        pa_config_parse_string,   NULL },
 404         { "log-target",                 parse_log_target,         NULL },
 405         { "log-level",                  parse_log_level,          NULL },
 406         { "verbose",                    parse_log_level,          NULL },
 407         { "resample-method",            parse_resample_method,    NULL },
 408         { "default-sample-format",      parse_sample_format,      NULL },
 409         { "default-sample-rate",        parse_sample_rate,        NULL },
 410         { "default-sample-channels",    parse_sample_channels,    NULL },
 411         { "default-fragments",          parse_fragments,          NULL },
 412         { "default-fragment-size-msec", parse_fragment_size_msec, NULL },
 413         { "nice-level",                 parse_nice_level,         NULL },
 414         { "disable-remixing",           pa_config_parse_bool,     NULL },
 415 #ifdef HAVE_SYS_RESOURCE_H
 416         { "rlimit-as",                  parse_rlimit,             NULL },
 417         { "rlimit-core",                parse_rlimit,             NULL },
 418         { "rlimit-data",                parse_rlimit,             NULL },
 419         { "rlimit-fsize",               parse_rlimit,             NULL },
 420         { "rlimit-nofile",              parse_rlimit,             NULL },
 421         { "rlimit-stack",               parse_rlimit,             NULL },
 422 #ifdef RLIMIT_NPROC
 423         { "rlimit-nproc",               parse_rlimit,             NULL },
 424 #endif
 425 #ifdef RLIMIT_MEMLOCK
 426         { "rlimit-memlock",             parse_rlimit,             NULL },
 427 #endif
 428 #ifdef RLIMIT_NICE
 429         { "rlimit-nice",                parse_rlimit,             NULL },
 430 #endif
 431 #ifdef RLIMIT_RTPRIO
 432         { "rlimit-rtprio",              parse_rlimit,             NULL },
 433 #endif
 434 #endif
 435         { NULL,                         NULL,                     NULL },
 436     };
 437
 438     table[0].data = &c->daemonize;
 439     table[1].data = &c->fail;
 440     table[2].data = &c->high_priority;
 441     table[3].data = &c->realtime_scheduling;
 442     table[4].data = &c->disallow_module_loading;
 443     table[5].data = &c->use_pid_file;
 444     table[6].data = &c->system_instance;
 445     table[7].data = &c->no_cpu_limit;
 446     table[8].data = &c->disable_shm;
 447     table[9].data = &c->exit_idle_time;
 448     table[10].data = &c->module_idle_time;
 449     table[11].data = &c->scache_idle_time;
 450     table[12].data = c;
 451     table[13].data = &c->dl_search_path;
 452     table[14].data = &c->default_script_file;
 453     table[15].data = c;
 454     table[16].data = c;
 455     table[17].data = c;
 456     table[18].data = c;
 457     table[19].data = c;
 458     table[20].data = c;
 459     table[21].data = c;
 460     table[22].data = c;
 461     table[23].data = c;
 462     table[24].data = c;
 463     table[25].data = &c->disable_remixing;
 464 #ifdef HAVE_SYS_RESOURCE_H
 465     table[26].data = &c->rlimit_as;
 466     table[27].data = &c->rlimit_core;
 467     table[28].data = &c->rlimit_data;
 468     table[29].data = &c->rlimit_fsize;
 469     table[30].data = &c->rlimit_nofile;
 470     table[31].data = &c->rlimit_stack;
 471 #ifdef RLIMIT_NPROC
 472     table[32].data = &c->rlimit_nproc;
 473 #endif
 474 #ifdef RLIMIT_MEMLOCK
 475 #ifndef RLIMIT_NPROC
 476 #error "Houston, we have a numbering problem!"
 477 #endif
 478     table[33].data = &c->rlimit_memlock;
 479 #endif
 480 #ifdef RLIMIT_NICE
 481 #ifndef RLIMIT_MEMLOCK
 482 #error "Houston, we have a numbering problem!"
 483 #endif
 484     table[34].data = &c->rlimit_nice;
 485 #endif
 486 #ifdef RLIMIT_RTPRIO
 487 #ifndef RLIMIT_NICE
 488 #error "Houston, we have a numbering problem!"
 489 #endif
 490     table[35].data = &c->rlimit_rtprio;
 491 #endif
 492 #endif
 493
 494     pa_xfree(c->config_file);
 495     c->config_file = NULL;
 496
 497     f = filename ?
 498         fopen(c->config_file = pa_xstrdup(filename), "r") :
 499         pa_open_config_file(DEFAULT_CONFIG_FILE, DEFAULT_CONFIG_FILE_USER, ENV_CONFIG_FILE, &c->config_file, "r");
 500
 501     if (!f && errno != ENOENT) {
 502         pa_log_warn("Failed to open configuration file '%s': %s", c->config_file, pa_cstrerror(errno));
 503         goto finish;
 504     }
 505
 506     r = f ? pa_config_parse(c->config_file, f, table, NULL) : 0;
 507
 508 finish:
 509     if (f)
 510         fclose(f);
 511
 512     return r;
 513 }
 514
 515 int pa_daemon_conf_env(pa_daemon_conf *c) {
 516     char *e;
 517
 518     if ((e = getenv(ENV_DL_SEARCH_PATH))) {
 519         pa_xfree(c->dl_search_path);
 520         c->dl_search_path = pa_xstrdup(e);
 521     }
 522     if ((e = getenv(ENV_SCRIPT_FILE))) {
 523         pa_xfree(c->default_script_file);
 524         c->default_script_file = pa_xstrdup(e);
 525     }
 526
 527     return 0;
 528 }
 529
 530 static const char* const log_level_to_string[] = {
 531     [PA_LOG_DEBUG] = "debug",
 532     [PA_LOG_INFO] = "info",
 533     [PA_LOG_NOTICE] = "notice",
 534     [PA_LOG_WARN] = "warning",
 535     [PA_LOG_ERROR] = "error"
 536 };
 537
 538 char *pa_daemon_conf_dump(pa_daemon_conf *c) {
 539     pa_strbuf *s;
 540
 541     pa_assert(c);
 542
 543     s = pa_strbuf_new();
 544
 545     if (c->config_file)
 546         pa_strbuf_printf(s, "### Read from configuration file: %s ###\n", c->config_file);
 547
 548     pa_assert(c->log_level <= PA_LOG_LEVEL_MAX);
 549
 550     pa_strbuf_printf(s, "daemonize = %s\n", pa_yes_no(c->daemonize));
 551     pa_strbuf_printf(s, "fail = %s\n", pa_yes_no(c->fail));
 552     pa_strbuf_printf(s, "high-priority = %s\n", pa_yes_no(c->high_priority));
 553     pa_strbuf_printf(s, "nice-level = %i\n", c->nice_level);
 554     pa_strbuf_printf(s, "realtime-scheduling = %s\n", pa_yes_no(c->realtime_scheduling));
 555     pa_strbuf_printf(s, "realtime-priority = %i\n", c->realtime_priority);
 556     pa_strbuf_printf(s, "disallow-module-loading = %s\n", pa_yes_no(c->disallow_module_loading));
 557     pa_strbuf_printf(s, "use-pid-file = %s\n", pa_yes_no(c->use_pid_file));
 558     pa_strbuf_printf(s, "system-instance = %s\n", pa_yes_no(c->system_instance));
 559     pa_strbuf_printf(s, "no-cpu-limit = %s\n", pa_yes_no(c->no_cpu_limit));
 560     pa_strbuf_printf(s, "disable-shm = %s\n", pa_yes_no(c->disable_shm));
 561     pa_strbuf_printf(s, "exit-idle-time = %i\n", c->exit_idle_time);
 562     pa_strbuf_printf(s, "module-idle-time = %i\n", c->module_idle_time);
 563     pa_strbuf_printf(s, "scache-idle-time = %i\n", c->scache_idle_time);
 564     pa_strbuf_printf(s, "dl-search-path = %s\n", c->dl_search_path ? c->dl_search_path : "");
 565     pa_strbuf_printf(s, "default-script-file = %s\n", c->default_script_file);
 566     pa_strbuf_printf(s, "log-target = %s\n", c->auto_log_target ? "auto" : (c->log_target == PA_LOG_SYSLOG ? "syslog" : "stderr"));
 567     pa_strbuf_printf(s, "log-level = %s\n", log_level_to_string[c->log_level]);
 568     pa_strbuf_printf(s, "resample-method = %s\n", pa_resample_method_to_string(c->resample_method));
 569     pa_strbuf_printf(s, "disable-remixing = %s\n", pa_yes_no(c->disable_remixing));
 570     pa_strbuf_printf(s, "default-sample-format = %s\n", pa_sample_format_to_string(c->default_sample_spec.format));
 571     pa_strbuf_printf(s, "default-sample-rate = %u\n", c->default_sample_spec.rate);
 572     pa_strbuf_printf(s, "default-sample-channels = %u\n", c->default_sample_spec.channels);
 573     pa_strbuf_printf(s, "default-fragments = %u\n", c->default_n_fragments);
 574     pa_strbuf_printf(s, "default-fragment-size-msec = %u\n", c->default_fragment_size_msec);
 575 #ifdef HAVE_SYS_RESOURCE_H
 576     pa_strbuf_printf(s, "rlimit-as = %li\n", c->rlimit_as.is_set ? (long int) c->rlimit_as.value : -1);
 577     pa_strbuf_printf(s, "rlimit-core = %li\n", c->rlimit_core.is_set ? (long int) c->rlimit_core.value : -1);
 578     pa_strbuf_printf(s, "rlimit-data = %li\n", c->rlimit_data.is_set ? (long int) c->rlimit_data.value : -1);
 579     pa_strbuf_printf(s, "rlimit-fsize = %li\n", c->rlimit_fsize.is_set ? (long int) c->rlimit_fsize.value : -1);
 580     pa_strbuf_printf(s, "rlimit-nofile = %li\n", c->rlimit_nofile.is_set ? (long int) c->rlimit_nofile.value : -1);
 581     pa_strbuf_printf(s, "rlimit-stack = %li\n", c->rlimit_stack.is_set ? (long int) c->rlimit_stack.value : -1);
 582 #ifdef RLIMIT_NPROC
 583     pa_strbuf_printf(s, "rlimit-nproc = %li\n", c->rlimit_nproc.is_set ? (long int) c->rlimit_nproc.value : -1);
 584 #endif
 585 #ifdef RLIMIT_MEMLOCK
 586     pa_strbuf_printf(s, "rlimit-memlock = %li\n", c->rlimit_memlock.is_set ? (long int) c->rlimit_memlock.value : -1);
 587 #endif
 588 #ifdef RLIMIT_NICE
 589     pa_strbuf_printf(s, "rlimit-nice = %li\n", c->rlimit_memlock.is_set ? (long int) c->rlimit_nice.value : -1);
 590 #endif
 591 #ifdef RLIMIT_RTPRIO
 592     pa_strbuf_printf(s, "rlimit-rtprio = %li\n", c->rlimit_memlock.is_set ? (long int) c->rlimit_rtprio.value : -1);
 593 #endif
 594 #endif
 595
 596     return pa_strbuf_tostring_free(s);
 597 }