code.delx.au - pulseaudio/blob - src/utils/padsp.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2006 Lennart Poettering
   7   Copyright 2006-2007 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 #ifdef _FILE_OFFSET_BITS
  30 #undef _FILE_OFFSET_BITS
  31 #endif
  32
  33 #ifndef _LARGEFILE64_SOURCE
  34 #define _LARGEFILE64_SOURCE 1
  35 #endif
  36
  37 #include <sys/soundcard.h>
  38 #include <sys/ioctl.h>
  39 #include <pthread.h>
  40 #include <unistd.h>
  41 #include <sys/socket.h>
  42 #include <sys/stat.h>
  43 #include <dlfcn.h>
  44 #include <errno.h>
  45 #include <fcntl.h>
  46 #include <string.h>
  47 #include <stdarg.h>
  48 #include <stdio.h>
  49 #include <signal.h>
  50
  51 #ifdef __linux__
  52 #include <linux/sockios.h>
  53 #endif
  54
  55 #include <pulse/pulseaudio.h>
  56 #include <pulse/gccmacro.h>
  57 #include <pulsecore/llist.h>
  58
  59 /* On some systems SIOCINQ isn't defined, but FIONREAD is just an alias */
  60 #if !defined(SIOCINQ) && defined(FIONREAD)
  61 # define SIOCINQ FIONREAD
  62 #endif
  63
  64 /* make sure gcc doesn't redefine open and friends as macros */
  65 #undef open
  66 #undef open64
  67
  68 typedef enum {
  69     FD_INFO_MIXER,
  70     FD_INFO_STREAM,
  71 } fd_info_type_t;
  72
  73 typedef struct fd_info fd_info;
  74
  75 struct fd_info {
  76     pthread_mutex_t mutex;
  77     int ref;
  78     int unusable;
  79
  80     fd_info_type_t type;
  81     int app_fd, thread_fd;
  82
  83     pa_sample_spec sample_spec;
  84     size_t fragment_size;
  85     unsigned n_fragments;
  86
  87     pa_threaded_mainloop *mainloop;
  88     pa_context *context;
  89     pa_stream *play_stream;
  90     pa_stream *rec_stream;
  91     int play_precork;
  92     int rec_precork;
  93
  94     pa_io_event *io_event;
  95     pa_io_event_flags_t io_flags;
  96
  97     void *buf;
  98     size_t rec_offset;
  99
 100     int operation_success;
 101
 102     pa_cvolume sink_volume, source_volume;
 103     uint32_t sink_index, source_index;
 104     int volume_modify_count;
 105
 106     int optr_n_blocks;
 107
 108     PA_LLIST_FIELDS(fd_info);
 109 };
 110
 111 static int dsp_drain(fd_info *i);
 112 static void fd_info_remove_from_list(fd_info *i);
 113
 114 static pthread_mutex_t fd_infos_mutex = PTHREAD_MUTEX_INITIALIZER;
 115 static pthread_mutex_t func_mutex = PTHREAD_MUTEX_INITIALIZER;
 116
 117 static PA_LLIST_HEAD(fd_info, fd_infos) = NULL;
 118
 119 static int (*_ioctl)(int, int, void*) = NULL;
 120 static int (*_close)(int) = NULL;
 121 static int (*_open)(const char *, int, mode_t) = NULL;
 122 static FILE* (*_fopen)(const char *path, const char *mode) = NULL;
 123 static int (*_stat)(const char *, struct stat *) = NULL;
 124 #ifdef _STAT_VER
 125 static int (*___xstat)(int, const char *, struct stat *) = NULL;
 126 #endif
 127 #ifdef HAVE_OPEN64
 128 static int (*_open64)(const char *, int, mode_t) = NULL;
 129 static FILE* (*_fopen64)(const char *path, const char *mode) = NULL;
 130 static int (*_stat64)(const char *, struct stat64 *) = NULL;
 131 #ifdef _STAT_VER
 132 static int (*___xstat64)(int, const char *, struct stat64 *) = NULL;
 133 #endif
 134 #endif
 135 static int (*_fclose)(FILE *f) = NULL;
 136 static int (*_access)(const char *, int) = NULL;
 137
 138 /* dlsym() violates ISO C, so confide the breakage into this function to
 139  * avoid warnings. */
 140 typedef void (*fnptr)(void);
 141 static inline fnptr dlsym_fn(void *handle, const char *symbol) {
 142     return (fnptr) (long) dlsym(handle, symbol);
 143 }
 144
 145 #define LOAD_IOCTL_FUNC() \
 146 do { \
 147     pthread_mutex_lock(&func_mutex); \
 148     if (!_ioctl)  \
 149         _ioctl = (int (*)(int, int, void*)) dlsym_fn(RTLD_NEXT, "ioctl"); \
 150     pthread_mutex_unlock(&func_mutex); \
 151 } while(0)
 152
 153 #define LOAD_OPEN_FUNC() \
 154 do { \
 155     pthread_mutex_lock(&func_mutex); \
 156     if (!_open) \
 157         _open = (int (*)(const char *, int, mode_t)) dlsym_fn(RTLD_NEXT, "open"); \
 158     pthread_mutex_unlock(&func_mutex); \
 159 } while(0)
 160
 161 #define LOAD_OPEN64_FUNC() \
 162 do { \
 163     pthread_mutex_lock(&func_mutex); \
 164     if (!_open64) \
 165         _open64 = (int (*)(const char *, int, mode_t)) dlsym_fn(RTLD_NEXT, "open64"); \
 166     pthread_mutex_unlock(&func_mutex); \
 167 } while(0)
 168
 169 #define LOAD_CLOSE_FUNC() \
 170 do { \
 171     pthread_mutex_lock(&func_mutex); \
 172     if (!_close) \
 173         _close = (int (*)(int)) dlsym_fn(RTLD_NEXT, "close"); \
 174     pthread_mutex_unlock(&func_mutex); \
 175 } while(0)
 176
 177 #define LOAD_ACCESS_FUNC() \
 178 do { \
 179     pthread_mutex_lock(&func_mutex); \
 180     if (!_access) \
 181         _access = (int (*)(const char*, int)) dlsym_fn(RTLD_NEXT, "access"); \
 182     pthread_mutex_unlock(&func_mutex); \
 183 } while(0)
 184
 185 #define LOAD_STAT_FUNC() \
 186 do { \
 187     pthread_mutex_lock(&func_mutex); \
 188     if (!_stat) \
 189         _stat = (int (*)(const char *, struct stat *)) dlsym_fn(RTLD_NEXT, "stat"); \
 190     pthread_mutex_unlock(&func_mutex); \
 191 } while(0)
 192
 193 #define LOAD_STAT64_FUNC() \
 194 do { \
 195     pthread_mutex_lock(&func_mutex); \
 196     if (!_stat64) \
 197         _stat64 = (int (*)(const char *, struct stat64 *)) dlsym_fn(RTLD_NEXT, "stat64"); \
 198     pthread_mutex_unlock(&func_mutex); \
 199 } while(0)
 200
 201 #define LOAD_XSTAT_FUNC() \
 202 do { \
 203     pthread_mutex_lock(&func_mutex); \
 204     if (!___xstat) \
 205         ___xstat = (int (*)(int, const char *, struct stat *)) dlsym_fn(RTLD_NEXT, "__xstat"); \
 206     pthread_mutex_unlock(&func_mutex); \
 207 } while(0)
 208
 209 #define LOAD_XSTAT64_FUNC() \
 210 do { \
 211     pthread_mutex_lock(&func_mutex); \
 212     if (!___xstat64) \
 213         ___xstat64 = (int (*)(int, const char *, struct stat64 *)) dlsym_fn(RTLD_NEXT, "__xstat64"); \
 214     pthread_mutex_unlock(&func_mutex); \
 215 } while(0)
 216
 217 #define LOAD_FOPEN_FUNC() \
 218 do { \
 219     pthread_mutex_lock(&func_mutex); \
 220     if (!_fopen) \
 221         _fopen = (FILE* (*)(const char *, const char*)) dlsym_fn(RTLD_NEXT, "fopen"); \
 222     pthread_mutex_unlock(&func_mutex); \
 223 } while(0)
 224
 225 #define LOAD_FOPEN64_FUNC() \
 226 do { \
 227     pthread_mutex_lock(&func_mutex); \
 228     if (!_fopen64) \
 229         _fopen64 = (FILE* (*)(const char *, const char*)) dlsym_fn(RTLD_NEXT, "fopen64"); \
 230     pthread_mutex_unlock(&func_mutex); \
 231 } while(0)
 232
 233 #define LOAD_FCLOSE_FUNC() \
 234 do { \
 235     pthread_mutex_lock(&func_mutex); \
 236     if (!_fclose) \
 237         _fclose = (int (*)(FILE *)) dlsym_fn(RTLD_NEXT, "fclose"); \
 238     pthread_mutex_unlock(&func_mutex); \
 239 } while(0)
 240
 241 #define CONTEXT_CHECK_DEAD_GOTO(i, label) do { \
 242 if (!(i)->context || pa_context_get_state((i)->context) != PA_CONTEXT_READY) { \
 243     debug(DEBUG_LEVEL_NORMAL, __FILE__": Not connected: %s\n", (i)->context ? pa_strerror(pa_context_errno((i)->context)) : "NULL"); \
 244     goto label; \
 245 } \
 246 } while(0)
 247
 248 #define PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, label) do { \
 249 if (!(i)->context || pa_context_get_state((i)->context) != PA_CONTEXT_READY || \
 250     !(i)->play_stream || pa_stream_get_state((i)->play_stream) != PA_STREAM_READY) { \
 251     debug(DEBUG_LEVEL_NORMAL, __FILE__": Not connected: %s\n", (i)->context ? pa_strerror(pa_context_errno((i)->context)) : "NULL"); \
 252     goto label; \
 253 } \
 254 } while(0)
 255
 256 #define RECORD_STREAM_CHECK_DEAD_GOTO(i, label) do { \
 257 if (!(i)->context || pa_context_get_state((i)->context) != PA_CONTEXT_READY || \
 258     !(i)->rec_stream || pa_stream_get_state((i)->rec_stream) != PA_STREAM_READY) { \
 259     debug(DEBUG_LEVEL_NORMAL, __FILE__": Not connected: %s\n", (i)->context ? pa_strerror(pa_context_errno((i)->context)) : "NULL"); \
 260     goto label; \
 261 } \
 262 } while(0)
 263
 264 static void debug(int level, const char *format, ...) PA_GCC_PRINTF_ATTR(2,3);
 265
 266 #define DEBUG_LEVEL_ALWAYS                0
 267 #define DEBUG_LEVEL_NORMAL                1
 268 #define DEBUG_LEVEL_VERBOSE                2
 269
 270 static void debug(int level, const char *format, ...) {
 271     va_list ap;
 272     const char *dlevel_s;
 273     int dlevel;
 274
 275     dlevel_s = getenv("PADSP_DEBUG");
 276     if (!dlevel_s)
 277         return;
 278
 279     dlevel = atoi(dlevel_s);
 280
 281     if (dlevel < level)
 282         return;
 283
 284     va_start(ap, format);
 285     vfprintf(stderr, format, ap);
 286     va_end(ap);
 287 }
 288
 289 static int padsp_disabled(void) {
 290     static int *sym;
 291     static int sym_resolved = 0;
 292
 293     /* If the current process has a symbol __padsp_disabled__ we use
 294      * it to detect whether we should enable our stuff or not. A
 295      * program needs to be compiled with -rdynamic for this to work!
 296      * The symbol must be an int containing a three bit bitmask: bit 1
 297      * -> disable /dev/dsp emulation, bit 2 -> disable /dev/sndstat
 298      * emulation, bit 3 -> disable /dev/mixer emulation. Hence a value
 299      * of 7 disables padsp entirely. */
 300
 301     pthread_mutex_lock(&func_mutex);
 302     if (!sym_resolved) {
 303         sym = (int*) dlsym(RTLD_DEFAULT, "__padsp_disabled__");
 304         sym_resolved = 1;
 305     }
 306     pthread_mutex_unlock(&func_mutex);
 307
 308     if (!sym)
 309         return 0;
 310
 311     return *sym;
 312 }
 313
 314 static int dsp_cloak_enable(void) {
 315     if (padsp_disabled() & 1)
 316         return 0;
 317
 318     if (getenv("PADSP_NO_DSP") || getenv("PULSE_INTERNAL"))
 319         return 0;
 320
 321     return 1;
 322 }
 323
 324 static int sndstat_cloak_enable(void) {
 325     if (padsp_disabled() & 2)
 326         return 0;
 327
 328     if (getenv("PADSP_NO_SNDSTAT") || getenv("PULSE_INTERNAL"))
 329         return 0;
 330
 331     return 1;
 332 }
 333
 334 static int mixer_cloak_enable(void) {
 335     if (padsp_disabled() & 4)
 336         return 0;
 337
 338     if (getenv("PADSP_NO_MIXER") || getenv("PULSE_INTERNAL"))
 339         return 0;
 340
 341     return 1;
 342 }
 343 static pthread_key_t recursion_key;
 344
 345 static void recursion_key_alloc(void) {
 346     pthread_key_create(&recursion_key, NULL);
 347 }
 348
 349 static int function_enter(void) {
 350     /* Avoid recursive calls */
 351     static pthread_once_t recursion_key_once = PTHREAD_ONCE_INIT;
 352     pthread_once(&recursion_key_once, recursion_key_alloc);
 353
 354     if (pthread_getspecific(recursion_key))
 355         return 0;
 356
 357     pthread_setspecific(recursion_key, (void*) 1);
 358     return 1;
 359 }
 360
 361 static void function_exit(void) {
 362     pthread_setspecific(recursion_key, NULL);
 363 }
 364
 365 static void fd_info_free(fd_info *i) {
 366     assert(i);
 367
 368     debug(DEBUG_LEVEL_NORMAL, __FILE__": freeing fd info (fd=%i)\n", i->app_fd);
 369
 370     dsp_drain(i);
 371
 372     if (i->mainloop)
 373         pa_threaded_mainloop_stop(i->mainloop);
 374
 375     if (i->play_stream) {
 376         pa_stream_disconnect(i->play_stream);
 377         pa_stream_unref(i->play_stream);
 378     }
 379
 380     if (i->rec_stream) {
 381         pa_stream_disconnect(i->rec_stream);
 382         pa_stream_unref(i->rec_stream);
 383     }
 384
 385     if (i->context) {
 386         pa_context_disconnect(i->context);
 387         pa_context_unref(i->context);
 388     }
 389
 390     if (i->mainloop)
 391         pa_threaded_mainloop_free(i->mainloop);
 392
 393     if (i->app_fd >= 0) {
 394         LOAD_CLOSE_FUNC();
 395         _close(i->app_fd);
 396     }
 397
 398     if (i->thread_fd >= 0) {
 399         LOAD_CLOSE_FUNC();
 400         _close(i->thread_fd);
 401     }
 402
 403     free(i->buf);
 404
 405     pthread_mutex_destroy(&i->mutex);
 406     free(i);
 407 }
 408
 409 static fd_info *fd_info_ref(fd_info *i) {
 410     assert(i);
 411
 412     pthread_mutex_lock(&i->mutex);
 413     assert(i->ref >= 1);
 414     i->ref++;
 415
 416     debug(DEBUG_LEVEL_VERBOSE, __FILE__": ref++, now %i\n", i->ref);
 417     pthread_mutex_unlock(&i->mutex);
 418
 419     return i;
 420 }
 421
 422 static void fd_info_unref(fd_info *i) {
 423     int r;
 424     pthread_mutex_lock(&i->mutex);
 425     assert(i->ref >= 1);
 426     r = --i->ref;
 427         debug(DEBUG_LEVEL_VERBOSE, __FILE__": ref--, now %i\n", i->ref);
 428     pthread_mutex_unlock(&i->mutex);
 429
 430     if (r <= 0)
 431         fd_info_free(i);
 432 }
 433
 434 static void context_state_cb(pa_context *c, void *userdata) {
 435     fd_info *i = userdata;
 436     assert(c);
 437
 438     switch (pa_context_get_state(c)) {
 439         case PA_CONTEXT_READY:
 440         case PA_CONTEXT_TERMINATED:
 441         case PA_CONTEXT_FAILED:
 442             pa_threaded_mainloop_signal(i->mainloop, 0);
 443             break;
 444
 445         case PA_CONTEXT_UNCONNECTED:
 446         case PA_CONTEXT_CONNECTING:
 447         case PA_CONTEXT_AUTHORIZING:
 448         case PA_CONTEXT_SETTING_NAME:
 449             break;
 450     }
 451 }
 452
 453 static void reset_params(fd_info *i) {
 454     assert(i);
 455
 456     i->sample_spec.format = PA_SAMPLE_U8;
 457     i->sample_spec.channels = 1;
 458     i->sample_spec.rate = 8000;
 459     i->fragment_size = 0;
 460     i->n_fragments = 0;
 461 }
 462
 463 static const char *client_name(char *buf, size_t n) {
 464     char p[PATH_MAX];
 465     const char *e;
 466
 467     if ((e = getenv("PADSP_CLIENT_NAME")))
 468         return e;
 469
 470     if (pa_get_binary_name(p, sizeof(p)))
 471         snprintf(buf, n, "OSS Emulation[%s]", p);
 472     else
 473         snprintf(buf, n, "OSS");
 474
 475     return buf;
 476 }
 477
 478 static const char *stream_name(void) {
 479     const char *e;
 480
 481     if ((e = getenv("PADSP_STREAM_NAME")))
 482         return e;
 483
 484     return "Audio Stream";
 485 }
 486
 487 static void atfork_prepare(void) {
 488     fd_info *i;
 489
 490     debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_prepare() enter\n");
 491
 492     function_enter();
 493
 494     pthread_mutex_lock(&fd_infos_mutex);
 495
 496     for (i = fd_infos; i; i = i->next) {
 497         pthread_mutex_lock(&i->mutex);
 498         pa_threaded_mainloop_lock(i->mainloop);
 499     }
 500
 501     pthread_mutex_lock(&func_mutex);
 502
 503
 504     debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_prepare() exit\n");
 505 }
 506
 507 static void atfork_parent(void) {
 508     fd_info *i;
 509
 510     debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_parent() enter\n");
 511
 512     pthread_mutex_unlock(&func_mutex);
 513
 514     for (i = fd_infos; i; i = i->next) {
 515         pa_threaded_mainloop_unlock(i->mainloop);
 516         pthread_mutex_unlock(&i->mutex);
 517     }
 518
 519     pthread_mutex_unlock(&fd_infos_mutex);
 520
 521     function_exit();
 522
 523     debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_parent() exit\n");
 524 }
 525
 526 static void atfork_child(void) {
 527     fd_info *i;
 528
 529     debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_child() enter\n");
 530
 531     /* We do only the bare minimum to get all fds closed */
 532     pthread_mutex_init(&func_mutex, NULL);
 533     pthread_mutex_init(&fd_infos_mutex, NULL);
 534
 535     for (i = fd_infos; i; i = i->next) {
 536         pthread_mutex_init(&i->mutex, NULL);
 537
 538         if (i->context) {
 539             pa_context_disconnect(i->context);
 540             pa_context_unref(i->context);
 541             i->context = NULL;
 542         }
 543
 544         if (i->play_stream) {
 545             pa_stream_unref(i->play_stream);
 546             i->play_stream = NULL;
 547         }
 548
 549         if (i->rec_stream) {
 550             pa_stream_unref(i->rec_stream);
 551             i->rec_stream = NULL;
 552         }
 553
 554         if (i->app_fd >= 0) {
 555             close(i->app_fd);
 556             i->app_fd = -1;
 557         }
 558
 559         if (i->thread_fd >= 0) {
 560             close(i->thread_fd);
 561             i->thread_fd = -1;
 562         }
 563
 564         i->unusable = 1;
 565     }
 566
 567     function_exit();
 568
 569     debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_child() exit\n");
 570 }
 571
 572 static void install_atfork(void) {
 573     pthread_atfork(atfork_prepare, atfork_parent, atfork_child);
 574 }
 575
 576 static void stream_success_cb(pa_stream *s, int success, void *userdata) {
 577     fd_info *i = userdata;
 578
 579     assert(s);
 580     assert(i);
 581
 582     i->operation_success = success;
 583     pa_threaded_mainloop_signal(i->mainloop, 0);
 584 }
 585
 586 static void context_success_cb(pa_context *c, int success, void *userdata) {
 587     fd_info *i = userdata;
 588
 589     assert(c);
 590     assert(i);
 591
 592     i->operation_success = success;
 593     pa_threaded_mainloop_signal(i->mainloop, 0);
 594 }
 595
 596 static fd_info* fd_info_new(fd_info_type_t type, int *_errno) {
 597     fd_info *i;
 598     int sfds[2] = { -1, -1 };
 599     char name[64];
 600     static pthread_once_t install_atfork_once = PTHREAD_ONCE_INIT;
 601
 602     debug(DEBUG_LEVEL_NORMAL, __FILE__": fd_info_new()\n");
 603
 604     signal(SIGPIPE, SIG_IGN); /* Yes, ugly as hell */
 605
 606     pthread_once(&install_atfork_once, install_atfork);
 607
 608     if (!(i = malloc(sizeof(fd_info)))) {
 609         *_errno = ENOMEM;
 610         goto fail;
 611     }
 612
 613     i->app_fd = i->thread_fd = -1;
 614     i->type = type;
 615
 616     i->mainloop = NULL;
 617     i->context = NULL;
 618     i->play_stream = NULL;
 619     i->rec_stream = NULL;
 620     i->play_precork = 0;
 621     i->rec_precork = 0;
 622     i->io_event = NULL;
 623     i->io_flags = 0;
 624     pthread_mutex_init(&i->mutex, NULL);
 625     i->ref = 1;
 626     i->buf = NULL;
 627     i->rec_offset = 0;
 628     i->unusable = 0;
 629     pa_cvolume_reset(&i->sink_volume, 2);
 630     pa_cvolume_reset(&i->source_volume, 2);
 631     i->volume_modify_count = 0;
 632     i->sink_index = (uint32_t) -1;
 633     i->source_index = (uint32_t) -1;
 634     i->optr_n_blocks = 0;
 635     PA_LLIST_INIT(fd_info, i);
 636
 637     reset_params(i);
 638
 639     if (socketpair(AF_UNIX, SOCK_STREAM, 0, sfds) < 0) {
 640         *_errno = errno;
 641         debug(DEBUG_LEVEL_NORMAL, __FILE__": socket() failed: %s\n", strerror(errno));
 642         goto fail;
 643     }
 644
 645     i->app_fd = sfds[0];
 646     i->thread_fd = sfds[1];
 647
 648     if (!(i->mainloop = pa_threaded_mainloop_new())) {
 649         *_errno = EIO;
 650         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_threaded_mainloop_new() failed\n");
 651         goto fail;
 652     }
 653
 654     if (!(i->context = pa_context_new(pa_threaded_mainloop_get_api(i->mainloop), client_name(name, sizeof(name))))) {
 655         *_errno = EIO;
 656         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_context_new() failed\n");
 657         goto fail;
 658     }
 659
 660     pa_context_set_state_callback(i->context, context_state_cb, i);
 661
 662     if (pa_context_connect(i->context, NULL, 0, NULL) < 0) {
 663         *_errno = ECONNREFUSED;
 664         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_context_connect() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
 665         goto fail;
 666     }
 667
 668     pa_threaded_mainloop_lock(i->mainloop);
 669
 670     if (pa_threaded_mainloop_start(i->mainloop) < 0) {
 671         *_errno = EIO;
 672         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_threaded_mainloop_start() failed\n");
 673         goto unlock_and_fail;
 674     }
 675
 676     /* Wait until the context is ready */
 677     pa_threaded_mainloop_wait(i->mainloop);
 678
 679     if (pa_context_get_state(i->context) != PA_CONTEXT_READY) {
 680         *_errno = ECONNREFUSED;
 681         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_context_connect() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
 682         goto unlock_and_fail;
 683     }
 684
 685     pa_threaded_mainloop_unlock(i->mainloop);
 686     return i;
 687
 688 unlock_and_fail:
 689
 690     pa_threaded_mainloop_unlock(i->mainloop);
 691
 692 fail:
 693
 694     if (i)
 695         fd_info_unref(i);
 696
 697     return NULL;
 698 }
 699
 700 static void fd_info_add_to_list(fd_info *i) {
 701     assert(i);
 702
 703     pthread_mutex_lock(&fd_infos_mutex);
 704     PA_LLIST_PREPEND(fd_info, fd_infos, i);
 705     pthread_mutex_unlock(&fd_infos_mutex);
 706
 707     fd_info_ref(i);
 708 }
 709
 710 static void fd_info_remove_from_list(fd_info *i) {
 711     assert(i);
 712
 713     pthread_mutex_lock(&fd_infos_mutex);
 714     PA_LLIST_REMOVE(fd_info, fd_infos, i);
 715     pthread_mutex_unlock(&fd_infos_mutex);
 716
 717     fd_info_unref(i);
 718 }
 719
 720 static fd_info* fd_info_find(int fd) {
 721     fd_info *i;
 722
 723     pthread_mutex_lock(&fd_infos_mutex);
 724
 725     for (i = fd_infos; i; i = i->next)
 726         if (i->app_fd == fd && !i->unusable) {
 727             fd_info_ref(i);
 728             break;
 729         }
 730
 731     pthread_mutex_unlock(&fd_infos_mutex);
 732
 733     return i;
 734 }
 735
 736 static void fix_metrics(fd_info *i) {
 737     size_t fs;
 738     char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
 739
 740     fs = pa_frame_size(&i->sample_spec);
 741
 742     /* Don't fix things more than necessary */
 743     if ((i->fragment_size % fs) == 0 &&
 744         i->n_fragments >= 2 &&
 745         i->fragment_size > 0)
 746         return;
 747
 748     i->fragment_size = (i->fragment_size/fs)*fs;
 749
 750     /* Number of fragments set? */
 751     if (i->n_fragments < 2) {
 752         if (i->fragment_size > 0) {
 753             i->n_fragments = pa_bytes_per_second(&i->sample_spec) / 2 / i->fragment_size;
 754             if (i->n_fragments < 2)
 755                 i->n_fragments = 2;
 756         } else
 757             i->n_fragments = 12;
 758     }
 759
 760     /* Fragment size set? */
 761     if (i->fragment_size <= 0) {
 762         i->fragment_size = pa_bytes_per_second(&i->sample_spec) / 2 / i->n_fragments;
 763         if (i->fragment_size < 1024)
 764             i->fragment_size = 1024;
 765     }
 766
 767     debug(DEBUG_LEVEL_NORMAL, __FILE__": sample spec: %s\n", pa_sample_spec_snprint(t, sizeof(t), &i->sample_spec));
 768     debug(DEBUG_LEVEL_NORMAL, __FILE__": fixated metrics to %i fragments, %li bytes each.\n", i->n_fragments, (long)i->fragment_size);
 769 }
 770
 771 static void stream_request_cb(pa_stream *s, size_t length, void *userdata) {
 772     fd_info *i = userdata;
 773     assert(s);
 774
 775     if (i->io_event) {
 776         pa_mainloop_api *api;
 777         size_t n;
 778
 779         api = pa_threaded_mainloop_get_api(i->mainloop);
 780
 781         if (s == i->play_stream) {
 782             n = pa_stream_writable_size(i->play_stream);
 783             if (n == (size_t)-1) {
 784                 debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_writable_size(): %s\n",
 785                     pa_strerror(pa_context_errno(i->context)));
 786             }
 787
 788             if (n >= i->fragment_size)
 789                 i->io_flags |= PA_IO_EVENT_INPUT;
 790             else
 791                 i->io_flags &= ~PA_IO_EVENT_INPUT;
 792         }
 793
 794         if (s == i->rec_stream) {
 795             n = pa_stream_readable_size(i->rec_stream);
 796             if (n == (size_t)-1) {
 797                 debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_readable_size(): %s\n",
 798                     pa_strerror(pa_context_errno(i->context)));
 799             }
 800
 801             if (n >= i->fragment_size)
 802                 i->io_flags |= PA_IO_EVENT_OUTPUT;
 803             else
 804                 i->io_flags &= ~PA_IO_EVENT_OUTPUT;
 805         }
 806
 807         api->io_enable(i->io_event, i->io_flags);
 808     }
 809 }
 810
 811 static void stream_latency_update_cb(pa_stream *s, void *userdata) {
 812     fd_info *i = userdata;
 813     assert(s);
 814
 815     pa_threaded_mainloop_signal(i->mainloop, 0);
 816 }
 817
 818 static void fd_info_shutdown(fd_info *i) {
 819     assert(i);
 820
 821     if (i->io_event) {
 822         pa_mainloop_api *api;
 823         api = pa_threaded_mainloop_get_api(i->mainloop);
 824         api->io_free(i->io_event);
 825         i->io_event = NULL;
 826         i->io_flags = 0;
 827     }
 828
 829     if (i->thread_fd >= 0) {
 830         close(i->thread_fd);
 831         i->thread_fd = -1;
 832     }
 833 }
 834
 835 static int fd_info_copy_data(fd_info *i, int force) {
 836     size_t n;
 837
 838     if (!i->play_stream && !i->rec_stream)
 839         return -1;
 840
 841     if ((i->play_stream) && (pa_stream_get_state(i->play_stream) == PA_STREAM_READY)) {
 842         n = pa_stream_writable_size(i->play_stream);
 843
 844         if (n == (size_t)-1) {
 845             debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_writable_size(): %s\n",
 846                 pa_strerror(pa_context_errno(i->context)));
 847             return -1;
 848         }
 849
 850         while (n >= i->fragment_size || force) {
 851             ssize_t r;
 852
 853             if (!i->buf) {
 854                 if (!(i->buf = malloc(i->fragment_size))) {
 855                     debug(DEBUG_LEVEL_NORMAL, __FILE__": malloc() failed.\n");
 856                     return -1;
 857                 }
 858             }
 859
 860             if ((r = read(i->thread_fd, i->buf, i->fragment_size)) <= 0) {
 861
 862                 if (errno == EAGAIN)
 863                     break;
 864
 865                 debug(DEBUG_LEVEL_NORMAL, __FILE__": read(): %s\n", r == 0 ? "EOF" : strerror(errno));
 866                 return -1;
 867             }
 868
 869             if (pa_stream_write(i->play_stream, i->buf, r, free, 0, PA_SEEK_RELATIVE) < 0) {
 870                 debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_write(): %s\n", pa_strerror(pa_context_errno(i->context)));
 871                 return -1;
 872             }
 873
 874             i->buf = NULL;
 875
 876             assert(n >= (size_t) r);
 877             n -= r;
 878         }
 879
 880         if (n >= i->fragment_size)
 881             i->io_flags |= PA_IO_EVENT_INPUT;
 882         else
 883             i->io_flags &= ~PA_IO_EVENT_INPUT;
 884     }
 885
 886     if ((i->rec_stream) && (pa_stream_get_state(i->rec_stream) == PA_STREAM_READY)) {
 887         n = pa_stream_readable_size(i->rec_stream);
 888
 889         if (n == (size_t)-1) {
 890             debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_readable_size(): %s\n",
 891                 pa_strerror(pa_context_errno(i->context)));
 892             return -1;
 893         }
 894
 895         while (n >= i->fragment_size || force) {
 896             ssize_t r;
 897             const void *data;
 898             const char *buf;
 899             size_t len;
 900
 901             if (pa_stream_peek(i->rec_stream, &data, &len) < 0) {
 902                 debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_peek(): %s\n", pa_strerror(pa_context_errno(i->context)));
 903                 return -1;
 904             }
 905
 906             if (!data)
 907                 break;
 908
 909             buf = (const char*)data + i->rec_offset;
 910
 911             if ((r = write(i->thread_fd, buf, len - i->rec_offset)) <= 0) {
 912
 913                 if (errno == EAGAIN)
 914                     break;
 915
 916                 debug(DEBUG_LEVEL_NORMAL, __FILE__": write(): %s\n", strerror(errno));
 917                 return -1;
 918             }
 919
 920             assert((size_t)r <= len - i->rec_offset);
 921             i->rec_offset += r;
 922
 923             if (i->rec_offset == len) {
 924                 if (pa_stream_drop(i->rec_stream) < 0) {
 925                     debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_drop(): %s\n", pa_strerror(pa_context_errno(i->context)));
 926                     return -1;
 927                 }
 928                 i->rec_offset = 0;
 929             }
 930
 931             assert(n >= (size_t) r);
 932             n -= r;
 933         }
 934
 935         if (n >= i->fragment_size)
 936             i->io_flags |= PA_IO_EVENT_OUTPUT;
 937         else
 938             i->io_flags &= ~PA_IO_EVENT_OUTPUT;
 939     }
 940
 941     if (i->io_event) {
 942         pa_mainloop_api *api;
 943
 944         api = pa_threaded_mainloop_get_api(i->mainloop);
 945         api->io_enable(i->io_event, i->io_flags);
 946     }
 947
 948     return 0;
 949 }
 950
 951 static void stream_state_cb(pa_stream *s, void * userdata) {
 952     fd_info *i = userdata;
 953     assert(s);
 954
 955     switch (pa_stream_get_state(s)) {
 956
 957         case PA_STREAM_READY:
 958             debug(DEBUG_LEVEL_NORMAL, __FILE__": stream established.\n");
 959             break;
 960
 961         case PA_STREAM_FAILED:
 962             if (s == i->play_stream) {
 963                 debug(DEBUG_LEVEL_NORMAL,
 964                     __FILE__": pa_stream_connect_playback() failed: %s\n",
 965                     pa_strerror(pa_context_errno(i->context)));
 966                 pa_stream_unref(i->play_stream);
 967                 i->play_stream = NULL;
 968             } else if (s == i->rec_stream) {
 969                 debug(DEBUG_LEVEL_NORMAL,
 970                     __FILE__": pa_stream_connect_record() failed: %s\n",
 971                     pa_strerror(pa_context_errno(i->context)));
 972                 pa_stream_unref(i->rec_stream);
 973                 i->rec_stream = NULL;
 974             }
 975             fd_info_shutdown(i);
 976             break;
 977
 978         case PA_STREAM_TERMINATED:
 979         case PA_STREAM_UNCONNECTED:
 980         case PA_STREAM_CREATING:
 981             break;
 982     }
 983 }
 984
 985 static int create_playback_stream(fd_info *i) {
 986     pa_buffer_attr attr;
 987     int n, flags;
 988
 989     assert(i);
 990
 991     fix_metrics(i);
 992
 993     if (!(i->play_stream = pa_stream_new(i->context, stream_name(), &i->sample_spec, NULL))) {
 994         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
 995         goto fail;
 996     }
 997
 998     pa_stream_set_state_callback(i->play_stream, stream_state_cb, i);
 999     pa_stream_set_write_callback(i->play_stream, stream_request_cb, i);
1000     pa_stream_set_latency_update_callback(i->play_stream, stream_latency_update_cb, i);
1001
1002     memset(&attr, 0, sizeof(attr));
1003     attr.maxlength = i->fragment_size * (i->n_fragments+1);
1004     attr.tlength = i->fragment_size * i->n_fragments;
1005     attr.prebuf = i->fragment_size;
1006     attr.minreq = i->fragment_size;
1007
1008     flags = PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE;
1009     if (i->play_precork) {
1010         flags |= PA_STREAM_START_CORKED;
1011         debug(DEBUG_LEVEL_NORMAL, __FILE__": creating stream corked\n");
1012     }
1013     if (pa_stream_connect_playback(i->play_stream, NULL, &attr, flags, NULL, NULL) < 0) {
1014         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
1015         goto fail;
1016     }
1017
1018     n = i->fragment_size;
1019     setsockopt(i->app_fd, SOL_SOCKET, SO_SNDBUF, &n, sizeof(n));
1020     n = i->fragment_size;
1021     setsockopt(i->thread_fd, SOL_SOCKET, SO_RCVBUF, &n, sizeof(n));
1022
1023     return 0;
1024
1025 fail:
1026     return -1;
1027 }
1028
1029 static int create_record_stream(fd_info *i) {
1030     pa_buffer_attr attr;
1031     int n, flags;
1032
1033     assert(i);
1034
1035     fix_metrics(i);
1036
1037     if (!(i->rec_stream = pa_stream_new(i->context, stream_name(), &i->sample_spec, NULL))) {
1038         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
1039         goto fail;
1040     }
1041
1042     pa_stream_set_state_callback(i->rec_stream, stream_state_cb, i);
1043     pa_stream_set_read_callback(i->rec_stream, stream_request_cb, i);
1044     pa_stream_set_latency_update_callback(i->rec_stream, stream_latency_update_cb, i);
1045
1046     memset(&attr, 0, sizeof(attr));
1047     attr.maxlength = i->fragment_size * (i->n_fragments+1);
1048     attr.fragsize = i->fragment_size;
1049
1050     flags = PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE;
1051     if (i->rec_precork) {
1052         flags |= PA_STREAM_START_CORKED;
1053         debug(DEBUG_LEVEL_NORMAL, __FILE__": creating stream corked\n");
1054     }
1055     if (pa_stream_connect_record(i->rec_stream, NULL, &attr, flags) < 0) {
1056         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
1057         goto fail;
1058     }
1059
1060     n = i->fragment_size;
1061     setsockopt(i->app_fd, SOL_SOCKET, SO_RCVBUF, &n, sizeof(n));
1062     n = i->fragment_size;
1063     setsockopt(i->thread_fd, SOL_SOCKET, SO_SNDBUF, &n, sizeof(n));
1064
1065     return 0;
1066
1067 fail:
1068     return -1;
1069 }
1070
1071 static void free_streams(fd_info *i) {
1072     assert(i);
1073
1074     if (i->play_stream) {
1075         pa_stream_disconnect(i->play_stream);
1076         pa_stream_unref(i->play_stream);
1077         i->play_stream = NULL;
1078         i->io_flags |= PA_IO_EVENT_INPUT;
1079     }
1080
1081     if (i->rec_stream) {
1082         pa_stream_disconnect(i->rec_stream);
1083         pa_stream_unref(i->rec_stream);
1084         i->rec_stream = NULL;
1085         i->io_flags |= PA_IO_EVENT_OUTPUT;
1086     }
1087
1088     if (i->io_event) {
1089         pa_mainloop_api *api;
1090
1091         api = pa_threaded_mainloop_get_api(i->mainloop);
1092         api->io_enable(i->io_event, i->io_flags);
1093     }
1094 }
1095
1096 static void io_event_cb(pa_mainloop_api *api, pa_io_event *e, int fd, pa_io_event_flags_t flags, void *userdata) {
1097     fd_info *i = userdata;
1098
1099     pa_threaded_mainloop_signal(i->mainloop, 0);
1100
1101     if (flags & PA_IO_EVENT_INPUT) {
1102
1103         if (!i->play_stream) {
1104             if (create_playback_stream(i) < 0)
1105                 goto fail;
1106         } else {
1107             if (fd_info_copy_data(i, 0) < 0)
1108                 goto fail;
1109         }
1110
1111     } else if (flags & PA_IO_EVENT_OUTPUT) {
1112
1113         if (!i->rec_stream) {
1114             if (create_record_stream(i) < 0)
1115                 goto fail;
1116         } else {
1117             if (fd_info_copy_data(i, 0) < 0)
1118                 goto fail;
1119         }
1120
1121     } else if (flags & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR))
1122         goto fail;
1123
1124     return;
1125
1126 fail:
1127     /* We can't do anything better than removing the event source */
1128     fd_info_shutdown(i);
1129 }
1130
1131 static int dsp_open(int flags, int *_errno) {
1132     fd_info *i;
1133     pa_mainloop_api *api;
1134     int ret;
1135     int f;
1136
1137     debug(DEBUG_LEVEL_NORMAL, __FILE__": dsp_open()\n");
1138
1139     if (!(i = fd_info_new(FD_INFO_STREAM, _errno)))
1140         return -1;
1141
1142     if ((flags & O_NONBLOCK) == O_NONBLOCK) {
1143         if ((f = fcntl(i->app_fd, F_GETFL)) >= 0)
1144             fcntl(i->app_fd, F_SETFL, f|O_NONBLOCK);
1145     }
1146     if ((f = fcntl(i->thread_fd, F_GETFL)) >= 0)
1147         fcntl(i->thread_fd, F_SETFL, f|O_NONBLOCK);
1148
1149     fcntl(i->app_fd, F_SETFD, FD_CLOEXEC);
1150     fcntl(i->thread_fd, F_SETFD, FD_CLOEXEC);
1151
1152     pa_threaded_mainloop_lock(i->mainloop);
1153     api = pa_threaded_mainloop_get_api(i->mainloop);
1154
1155     switch (flags & O_ACCMODE) {
1156     case O_RDONLY:
1157         i->io_flags = PA_IO_EVENT_OUTPUT;
1158         shutdown(i->thread_fd, SHUT_RD);
1159         shutdown(i->app_fd, SHUT_WR);
1160         break;
1161     case O_WRONLY:
1162         i->io_flags = PA_IO_EVENT_INPUT;
1163         shutdown(i->thread_fd, SHUT_WR);
1164         shutdown(i->app_fd, SHUT_RD);
1165         break;
1166     case O_RDWR:
1167         i->io_flags = PA_IO_EVENT_INPUT | PA_IO_EVENT_OUTPUT;
1168         break;
1169     default:
1170         return -1;
1171     }
1172
1173     if (!(i->io_event = api->io_new(api, i->thread_fd, i->io_flags, io_event_cb, i)))
1174         goto fail;
1175
1176     pa_threaded_mainloop_unlock(i->mainloop);
1177
1178     debug(DEBUG_LEVEL_NORMAL, __FILE__": dsp_open() succeeded, fd=%i\n", i->app_fd);
1179
1180     fd_info_add_to_list(i);
1181     ret = i->app_fd;
1182     fd_info_unref(i);
1183
1184     return ret;
1185
1186 fail:
1187     pa_threaded_mainloop_unlock(i->mainloop);
1188
1189     if (i)
1190         fd_info_unref(i);
1191
1192     *_errno = EIO;
1193
1194     debug(DEBUG_LEVEL_NORMAL, __FILE__": dsp_open() failed\n");
1195
1196     return -1;
1197 }
1198
1199 static void sink_info_cb(pa_context *context, const pa_sink_info *si, int eol, void *userdata) {
1200     fd_info *i = userdata;
1201
1202     if (!si && eol < 0) {
1203         i->operation_success = 0;
1204         pa_threaded_mainloop_signal(i->mainloop, 0);
1205         return;
1206     }
1207
1208     if (eol)
1209         return;
1210
1211     if (!pa_cvolume_equal(&i->sink_volume, &si->volume))
1212         i->volume_modify_count++;
1213
1214     i->sink_volume = si->volume;
1215     i->sink_index = si->index;
1216
1217     i->operation_success = 1;
1218     pa_threaded_mainloop_signal(i->mainloop, 0);
1219 }
1220
1221 static void source_info_cb(pa_context *context, const pa_source_info *si, int eol, void *userdata) {
1222     fd_info *i = userdata;
1223
1224     if (!si && eol < 0) {
1225         i->operation_success = 0;
1226         pa_threaded_mainloop_signal(i->mainloop, 0);
1227         return;
1228     }
1229
1230     if (eol)
1231         return;
1232
1233     if (!pa_cvolume_equal(&i->source_volume, &si->volume))
1234         i->volume_modify_count++;
1235
1236     i->source_volume = si->volume;
1237     i->source_index = si->index;
1238
1239     i->operation_success = 1;
1240     pa_threaded_mainloop_signal(i->mainloop, 0);
1241 }
1242
1243 static void subscribe_cb(pa_context *context, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
1244     fd_info *i = userdata;
1245     pa_operation *o = NULL;
1246
1247     if (i->sink_index != idx)
1248         return;
1249
1250     if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) != PA_SUBSCRIPTION_EVENT_CHANGE)
1251         return;
1252
1253     if (!(o = pa_context_get_sink_info_by_index(i->context, i->sink_index, sink_info_cb, i))) {
1254         debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get sink info: %s", pa_strerror(pa_context_errno(i->context)));
1255         return;
1256     }
1257
1258     pa_operation_unref(o);
1259 }
1260
1261 static int mixer_open(int flags, int *_errno) {
1262     fd_info *i;
1263     pa_operation *o = NULL;
1264     int ret;
1265
1266     debug(DEBUG_LEVEL_NORMAL, __FILE__": mixer_open()\n");
1267
1268     if (!(i = fd_info_new(FD_INFO_MIXER, _errno)))
1269         return -1;
1270
1271     pa_threaded_mainloop_lock(i->mainloop);
1272
1273     pa_context_set_subscribe_callback(i->context, subscribe_cb, i);
1274
1275     if (!(o = pa_context_subscribe(i->context, PA_SUBSCRIPTION_MASK_SINK | PA_SUBSCRIPTION_MASK_SOURCE, context_success_cb, i))) {
1276         debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to subscribe to events: %s", pa_strerror(pa_context_errno(i->context)));
1277         *_errno = EIO;
1278         goto fail;
1279     }
1280
1281     i->operation_success = 0;
1282     while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
1283         pa_threaded_mainloop_wait(i->mainloop);
1284         CONTEXT_CHECK_DEAD_GOTO(i, fail);
1285     }
1286
1287     pa_operation_unref(o);
1288     o = NULL;
1289
1290     if (!i->operation_success) {
1291         debug(DEBUG_LEVEL_NORMAL, __FILE__":Failed to subscribe to events: %s", pa_strerror(pa_context_errno(i->context)));
1292         *_errno = EIO;
1293         goto fail;
1294     }
1295
1296     /* Get sink info */
1297
1298     if (!(o = pa_context_get_sink_info_by_name(i->context, NULL, sink_info_cb, i))) {
1299         debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get sink info: %s", pa_strerror(pa_context_errno(i->context)));
1300         *_errno = EIO;
1301         goto fail;
1302     }
1303
1304     i->operation_success = 0;
1305     while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
1306         pa_threaded_mainloop_wait(i->mainloop);
1307         CONTEXT_CHECK_DEAD_GOTO(i, fail);
1308     }
1309
1310     pa_operation_unref(o);
1311     o = NULL;
1312
1313     if (!i->operation_success) {
1314         debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get sink info: %s", pa_strerror(pa_context_errno(i->context)));
1315         *_errno = EIO;
1316         goto fail;
1317     }
1318
1319     /* Get source info */
1320
1321     if (!(o = pa_context_get_source_info_by_name(i->context, NULL, source_info_cb, i))) {
1322         debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get source info: %s", pa_strerror(pa_context_errno(i->context)));
1323         *_errno = EIO;
1324         goto fail;
1325     }
1326
1327     i->operation_success = 0;
1328     while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
1329         pa_threaded_mainloop_wait(i->mainloop);
1330         CONTEXT_CHECK_DEAD_GOTO(i, fail);
1331     }
1332
1333     pa_operation_unref(o);
1334     o = NULL;
1335
1336     if (!i->operation_success) {
1337         debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get source info: %s", pa_strerror(pa_context_errno(i->context)));
1338         *_errno = EIO;
1339         goto fail;
1340     }
1341
1342     pa_threaded_mainloop_unlock(i->mainloop);
1343
1344     debug(DEBUG_LEVEL_NORMAL, __FILE__": mixer_open() succeeded, fd=%i\n", i->app_fd);
1345
1346     fd_info_add_to_list(i);
1347     ret = i->app_fd;
1348     fd_info_unref(i);
1349
1350     return ret;
1351
1352 fail:
1353     if (o)
1354         pa_operation_unref(o);
1355
1356     pa_threaded_mainloop_unlock(i->mainloop);
1357
1358     if (i)
1359         fd_info_unref(i);
1360
1361     *_errno = EIO;
1362
1363     debug(DEBUG_LEVEL_NORMAL, __FILE__": mixer_open() failed\n");
1364
1365     return -1;
1366 }
1367
1368 static int sndstat_open(int flags, int *_errno) {
1369     static const char sndstat[] =
1370         "Sound Driver:3.8.1a-980706 (PulseAudio Virtual OSS)\n"
1371         "Kernel: POSIX\n"
1372         "Config options: 0\n"
1373         "\n"
1374         "Installed drivers:\n"
1375         "Type 255: PulseAudio Virtual OSS\n"
1376         "\n"
1377         "Card config:\n"
1378         "PulseAudio Virtual OSS\n"
1379         "\n"
1380         "Audio devices:\n"
1381         "0: PulseAudio Virtual OSS\n"
1382         "\n"
1383         "Synth devices: NOT ENABLED IN CONFIG\n"
1384         "\n"
1385         "Midi devices:\n"
1386         "\n"
1387         "Timers:\n"
1388         "\n"
1389         "Mixers:\n"
1390         "0: PulseAudio Virtual OSS\n";
1391
1392     char fn[] = "/tmp/padsp-sndstat-XXXXXX";
1393     mode_t u;
1394     int fd = -1;
1395     int e;
1396
1397     debug(DEBUG_LEVEL_NORMAL, __FILE__": sndstat_open()\n");
1398
1399     if (flags != O_RDONLY
1400 #ifdef O_LARGEFILE
1401         && flags != (O_RDONLY|O_LARGEFILE)
1402 #endif
1403        ) {
1404         *_errno = EACCES;
1405         debug(DEBUG_LEVEL_NORMAL, __FILE__": bad access!\n");
1406         goto fail;
1407     }
1408
1409     u = umask(0077);
1410     fd = mkstemp(fn);
1411     e = errno;
1412     umask(u);
1413
1414     if (fd < 0) {
1415         *_errno = e;
1416         debug(DEBUG_LEVEL_NORMAL, __FILE__": mkstemp() failed: %s\n", strerror(errno));
1417         goto fail;
1418     }
1419
1420     unlink(fn);
1421
1422     if (write(fd, sndstat, sizeof(sndstat) -1) != sizeof(sndstat)-1) {
1423         *_errno = errno;
1424         debug(DEBUG_LEVEL_NORMAL, __FILE__": write() failed: %s\n", strerror(errno));
1425         goto fail;
1426     }
1427
1428     if (lseek(fd, SEEK_SET, 0) < 0) {
1429         *_errno = errno;
1430         debug(DEBUG_LEVEL_NORMAL, __FILE__": lseek() failed: %s\n", strerror(errno));
1431         goto fail;
1432     }
1433
1434     return fd;
1435
1436 fail:
1437     if (fd >= 0)
1438         close(fd);
1439     return -1;
1440 }
1441
1442 static int real_open(const char *filename, int flags, mode_t mode) {
1443     int r, _errno = 0;
1444
1445     debug(DEBUG_LEVEL_VERBOSE, __FILE__": open(%s)\n", filename?filename:"NULL");
1446
1447     if (!function_enter()) {
1448         LOAD_OPEN_FUNC();
1449         return _open(filename, flags, mode);
1450     }
1451
1452     if (filename && dsp_cloak_enable() && (strcmp(filename, "/dev/dsp") == 0 || strcmp(filename, "/dev/adsp") == 0))
1453         r = dsp_open(flags, &_errno);
1454     else if (filename && mixer_cloak_enable() && strcmp(filename, "/dev/mixer") == 0)
1455         r = mixer_open(flags, &_errno);
1456     else if (filename && sndstat_cloak_enable() && strcmp(filename, "/dev/sndstat") == 0)
1457         r = sndstat_open(flags, &_errno);
1458     else {
1459         function_exit();
1460         LOAD_OPEN_FUNC();
1461         return _open(filename, flags, mode);
1462     }
1463
1464     function_exit();
1465
1466     if (_errno)
1467         errno = _errno;
1468
1469     return r;
1470 }
1471
1472 int open(const char *filename, int flags, ...) {
1473     va_list args;
1474     mode_t mode = 0;
1475
1476     if (flags & O_CREAT) {
1477         va_start(args, flags);
1478         if (sizeof(mode_t) < sizeof(int))
1479             mode = va_arg(args, int);
1480         else
1481             mode = va_arg(args, mode_t);
1482         va_end(args);
1483     }
1484
1485     return real_open(filename, flags, mode);
1486 }
1487
1488 static int mixer_ioctl(fd_info *i, unsigned long request, void*argp, int *_errno) {
1489     int ret = -1;
1490
1491     switch (request) {
1492         case SOUND_MIXER_READ_DEVMASK :
1493             debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_DEVMASK\n");
1494
1495             *(int*) argp = SOUND_MASK_PCM | SOUND_MASK_IGAIN;
1496             break;
1497
1498         case SOUND_MIXER_READ_RECMASK :
1499             debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_RECMASK\n");
1500
1501             *(int*) argp = SOUND_MASK_IGAIN;
1502             break;
1503
1504         case SOUND_MIXER_READ_STEREODEVS:
1505             debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_STEREODEVS\n");
1506
1507             pa_threaded_mainloop_lock(i->mainloop);
1508             *(int*) argp = 0;
1509             if (i->sink_volume.channels > 1)
1510                 *(int*) argp |= SOUND_MASK_PCM;
1511             if (i->source_volume.channels > 1)
1512                 *(int*) argp |= SOUND_MASK_IGAIN;
1513             pa_threaded_mainloop_unlock(i->mainloop);
1514
1515             break;
1516
1517         case SOUND_MIXER_READ_RECSRC:
1518             debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_RECSRC\n");
1519
1520             *(int*) argp = SOUND_MASK_IGAIN;
1521             break;
1522
1523         case SOUND_MIXER_WRITE_RECSRC:
1524             debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_WRITE_RECSRC\n");
1525             break;
1526
1527         case SOUND_MIXER_READ_CAPS:
1528             debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_CAPS\n");
1529
1530             *(int*) argp = 0;
1531             break;
1532
1533         case SOUND_MIXER_READ_PCM:
1534         case SOUND_MIXER_READ_IGAIN: {
1535             pa_cvolume *v;
1536
1537             if (request == SOUND_MIXER_READ_PCM)
1538                 debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_PCM\n");
1539             else
1540                 debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_IGAIN\n");
1541
1542             pa_threaded_mainloop_lock(i->mainloop);
1543
1544             if (request == SOUND_MIXER_READ_PCM)
1545                 v = &i->sink_volume;
1546             else
1547                 v = &i->source_volume;
1548
1549             *(int*) argp =
1550                 ((v->values[0]*100/PA_VOLUME_NORM)) |
1551                 ((v->values[v->channels > 1 ? 1 : 0]*100/PA_VOLUME_NORM)  << 8);
1552
1553             pa_threaded_mainloop_unlock(i->mainloop);
1554
1555             break;
1556         }
1557
1558         case SOUND_MIXER_WRITE_PCM:
1559         case SOUND_MIXER_WRITE_IGAIN: {
1560             pa_cvolume v, *pv;
1561
1562             if (request == SOUND_MIXER_WRITE_PCM)
1563                 debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_WRITE_PCM\n");
1564             else
1565                 debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_WRITE_IGAIN\n");
1566
1567             pa_threaded_mainloop_lock(i->mainloop);
1568
1569             if (request == SOUND_MIXER_WRITE_PCM) {
1570                 v = i->sink_volume;
1571                 pv = &i->sink_volume;
1572             } else {
1573                 v = i->source_volume;
1574                 pv = &i->source_volume;
1575             }
1576
1577             pv->values[0] = ((*(int*) argp & 0xFF)*PA_VOLUME_NORM)/100;
1578             pv->values[1] = ((*(int*) argp >> 8)*PA_VOLUME_NORM)/100;
1579
1580             if (!pa_cvolume_equal(pv, &v)) {
1581                 pa_operation *o;
1582
1583                 if (request == SOUND_MIXER_WRITE_PCM)
1584                     o = pa_context_set_sink_volume_by_index(i->context, i->sink_index, pv, context_success_cb, i);
1585                 else
1586                     o = pa_context_set_source_volume_by_index(i->context, i->source_index, pv, context_success_cb, i);
1587
1588                 if (!o)
1589                     debug(DEBUG_LEVEL_NORMAL, __FILE__":Failed set volume: %s", pa_strerror(pa_context_errno(i->context)));
1590                 else {
1591
1592                     i->operation_success = 0;
1593                     while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
1594                         CONTEXT_CHECK_DEAD_GOTO(i, exit_loop);
1595
1596                         pa_threaded_mainloop_wait(i->mainloop);
1597                     }
1598                 exit_loop:
1599
1600                     if (!i->operation_success)
1601                         debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to set volume: %s\n", pa_strerror(pa_context_errno(i->context)));
1602
1603                     pa_operation_unref(o);
1604                 }
1605
1606                 /* We don't wait for completion here */
1607                 i->volume_modify_count++;
1608             }
1609
1610             pa_threaded_mainloop_unlock(i->mainloop);
1611
1612             break;
1613         }
1614
1615         case SOUND_MIXER_INFO: {
1616             mixer_info *mi = argp;
1617
1618             debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_INFO\n");
1619
1620             memset(mi, 0, sizeof(mixer_info));
1621             strncpy(mi->id, "PULSEAUDIO", sizeof(mi->id));
1622             strncpy(mi->name, "PulseAudio Virtual OSS", sizeof(mi->name));
1623             pa_threaded_mainloop_lock(i->mainloop);
1624             mi->modify_counter = i->volume_modify_count;
1625             pa_threaded_mainloop_unlock(i->mainloop);
1626             break;
1627         }
1628
1629         default:
1630             debug(DEBUG_LEVEL_NORMAL, __FILE__": unknown ioctl 0x%08lx\n", request);
1631
1632             *_errno = EINVAL;
1633             goto fail;
1634     }
1635
1636     ret = 0;
1637
1638 fail:
1639
1640     return ret;
1641 }
1642
1643 static int map_format(int *fmt, pa_sample_spec *ss) {
1644
1645     switch (*fmt) {
1646         case AFMT_MU_LAW:
1647             ss->format = PA_SAMPLE_ULAW;
1648             break;
1649
1650         case AFMT_A_LAW:
1651             ss->format = PA_SAMPLE_ALAW;
1652             break;
1653
1654         case AFMT_S8:
1655             *fmt = AFMT_U8;
1656             /* fall through */
1657         case AFMT_U8:
1658             ss->format = PA_SAMPLE_U8;
1659             break;
1660
1661         case AFMT_U16_BE:
1662             *fmt = AFMT_S16_BE;
1663             /* fall through */
1664         case AFMT_S16_BE:
1665             ss->format = PA_SAMPLE_S16BE;
1666             break;
1667
1668         case AFMT_U16_LE:
1669             *fmt = AFMT_S16_LE;
1670             /* fall through */
1671         case AFMT_S16_LE:
1672             ss->format = PA_SAMPLE_S16LE;
1673             break;
1674
1675         default:
1676             ss->format = PA_SAMPLE_S16NE;
1677             *fmt = AFMT_S16_NE;
1678             break;
1679     }
1680
1681     return 0;
1682 }
1683
1684 static int map_format_back(pa_sample_format_t format) {
1685     switch (format) {
1686         case PA_SAMPLE_S16LE: return AFMT_S16_LE;
1687         case PA_SAMPLE_S16BE: return AFMT_S16_BE;
1688         case PA_SAMPLE_ULAW: return AFMT_MU_LAW;
1689         case PA_SAMPLE_ALAW: return AFMT_A_LAW;
1690         case PA_SAMPLE_U8: return AFMT_U8;
1691         default:
1692             abort();
1693     }
1694 }
1695
1696 static int dsp_flush_fd(int fd) {
1697 #ifdef SIOCINQ
1698     int l;
1699
1700     if (ioctl(fd, SIOCINQ, &l) < 0) {
1701         debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ: %s\n", strerror(errno));
1702         return -1;
1703     }
1704
1705     while (l > 0) {
1706         char buf[1024];
1707         size_t k;
1708
1709         k = (size_t) l > sizeof(buf) ? sizeof(buf) : (size_t) l;
1710         if (read(fd, buf, k) < 0)
1711             debug(DEBUG_LEVEL_NORMAL, __FILE__": read(): %s\n", strerror(errno));
1712         l -= k;
1713     }
1714
1715     return 0;
1716 #else
1717 # warning "Your platform does not support SIOCINQ, something might not work as intended."
1718     return 0;
1719 #endif
1720 }
1721
1722 static int dsp_flush_socket(fd_info *i) {
1723     int res = 0;
1724
1725     if ((i->thread_fd < 0) && (i->app_fd < 0))
1726         return -1;
1727
1728     if (i->thread_fd >= 0)
1729         res = dsp_flush_fd(i->thread_fd);
1730
1731     if (res < 0)
1732         return res;
1733
1734     if (i->app_fd >= 0)
1735         res = dsp_flush_fd(i->app_fd);
1736
1737     if (res < 0)
1738         return res;
1739
1740     return 0;
1741 }
1742
1743 static int dsp_empty_socket(fd_info *i) {
1744 #ifdef SIOCINQ
1745     int ret = -1;
1746
1747     /* Empty the socket */
1748     for (;;) {
1749         int l;
1750
1751         if (i->thread_fd < 0)
1752             break;
1753
1754         if (ioctl(i->thread_fd, SIOCINQ, &l) < 0) {
1755             debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ: %s\n", strerror(errno));
1756             break;
1757         }
1758
1759         if (!l) {
1760             ret = 0;
1761             break;
1762         }
1763
1764         pa_threaded_mainloop_wait(i->mainloop);
1765     }
1766
1767     return ret;
1768 #else
1769 # warning "Your platform does not support SIOCINQ, something might not work as intended."
1770     return 0;
1771 #endif
1772 }
1773
1774 static int dsp_drain(fd_info *i) {
1775     pa_operation *o = NULL;
1776     int r = -1;
1777
1778     if (!i->mainloop)
1779         return 0;
1780
1781     debug(DEBUG_LEVEL_NORMAL, __FILE__": Draining.\n");
1782
1783     pa_threaded_mainloop_lock(i->mainloop);
1784
1785     if (dsp_empty_socket(i) < 0)
1786         goto fail;
1787
1788     if (!i->play_stream)
1789         goto fail;
1790
1791     debug(DEBUG_LEVEL_NORMAL, __FILE__": Really draining.\n");
1792
1793     if (!(o = pa_stream_drain(i->play_stream, stream_success_cb, i))) {
1794         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(i->context)));
1795         goto fail;
1796     }
1797
1798     i->operation_success = 0;
1799     while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
1800         PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, fail);
1801
1802         pa_threaded_mainloop_wait(i->mainloop);
1803     }
1804
1805     if (!i->operation_success) {
1806         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_drain() 2: %s\n", pa_strerror(pa_context_errno(i->context)));
1807         goto fail;
1808     }
1809
1810     r = 0;
1811
1812 fail:
1813
1814     if (o)
1815         pa_operation_unref(o);
1816
1817     pa_threaded_mainloop_unlock(i->mainloop);
1818
1819     return 0;
1820 }
1821
1822 static int dsp_trigger(fd_info *i) {
1823     pa_operation *o = NULL;
1824     int r = -1;
1825
1826     if (!i->play_stream)
1827         return 0;
1828
1829     pa_threaded_mainloop_lock(i->mainloop);
1830
1831     if (dsp_empty_socket(i) < 0)
1832         goto fail;
1833
1834     debug(DEBUG_LEVEL_NORMAL, __FILE__": Triggering.\n");
1835
1836     if (!(o = pa_stream_trigger(i->play_stream, stream_success_cb, i))) {
1837         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_trigger(): %s\n", pa_strerror(pa_context_errno(i->context)));
1838         goto fail;
1839     }
1840
1841     i->operation_success = 0;
1842     while (!pa_operation_get_state(o) != PA_OPERATION_DONE) {
1843         PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, fail);
1844
1845         pa_threaded_mainloop_wait(i->mainloop);
1846     }
1847
1848     if (!i->operation_success) {
1849         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_trigger(): %s\n", pa_strerror(pa_context_errno(i->context)));
1850         goto fail;
1851     }
1852
1853     r = 0;
1854
1855 fail:
1856
1857     if (o)
1858         pa_operation_unref(o);
1859
1860     pa_threaded_mainloop_unlock(i->mainloop);
1861
1862     return 0;
1863 }
1864
1865 static int dsp_cork(fd_info *i, pa_stream *s, int b) {
1866     pa_operation *o = NULL;
1867     int r = -1;
1868
1869     pa_threaded_mainloop_lock(i->mainloop);
1870
1871     if (!(o = pa_stream_cork(s, b, stream_success_cb, i))) {
1872         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_cork(): %s\n", pa_strerror(pa_context_errno(i->context)));
1873         goto fail;
1874     }
1875
1876     i->operation_success = 0;
1877     while (!pa_operation_get_state(o) != PA_OPERATION_DONE) {
1878         if (s == i->play_stream)
1879             PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, fail);
1880         else if (s == i->rec_stream)
1881             RECORD_STREAM_CHECK_DEAD_GOTO(i, fail);
1882
1883         pa_threaded_mainloop_wait(i->mainloop);
1884     }
1885
1886     if (!i->operation_success) {
1887         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_cork(): %s\n", pa_strerror(pa_context_errno(i->context)));
1888         goto fail;
1889     }
1890
1891     r = 0;
1892
1893 fail:
1894
1895     if (o)
1896         pa_operation_unref(o);
1897
1898     pa_threaded_mainloop_unlock(i->mainloop);
1899
1900     return 0;
1901 }
1902
1903 static int dsp_ioctl(fd_info *i, unsigned long request, void*argp, int *_errno) {
1904     int ret = -1;
1905
1906     if (i->thread_fd == -1) {
1907         /*
1908          * We've encountered some fatal error and are just waiting
1909          * for a close.
1910          */
1911         debug(DEBUG_LEVEL_NORMAL, __FILE__": got ioctl 0x%08lx in fatal error state\n", request);
1912         *_errno = EIO;
1913         return -1;
1914     }
1915
1916     switch (request) {
1917         case SNDCTL_DSP_SETFMT: {
1918             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETFMT: %i\n", *(int*) argp);
1919
1920             pa_threaded_mainloop_lock(i->mainloop);
1921
1922             if (*(int*) argp == AFMT_QUERY)
1923                 *(int*) argp = map_format_back(i->sample_spec.format);
1924             else {
1925                 map_format((int*) argp, &i->sample_spec);
1926                 free_streams(i);
1927             }
1928
1929             pa_threaded_mainloop_unlock(i->mainloop);
1930             break;
1931         }
1932
1933         case SNDCTL_DSP_SPEED: {
1934             pa_sample_spec ss;
1935             int valid;
1936             char t[256];
1937
1938             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SPEED: %i\n", *(int*) argp);
1939
1940             pa_threaded_mainloop_lock(i->mainloop);
1941
1942             ss = i->sample_spec;
1943             ss.rate = *(int*) argp;
1944
1945             if ((valid = pa_sample_spec_valid(&ss))) {
1946                 i->sample_spec = ss;
1947                 free_streams(i);
1948             }
1949
1950             debug(DEBUG_LEVEL_NORMAL, __FILE__": ss: %s\n", pa_sample_spec_snprint(t, sizeof(t), &i->sample_spec));
1951
1952             pa_threaded_mainloop_unlock(i->mainloop);
1953
1954             if (!valid) {
1955                 *_errno = EINVAL;
1956                 goto fail;
1957             }
1958
1959             break;
1960         }
1961
1962         case SNDCTL_DSP_STEREO:
1963             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_STEREO: %i\n", *(int*) argp);
1964
1965             pa_threaded_mainloop_lock(i->mainloop);
1966
1967             i->sample_spec.channels = *(int*) argp ? 2 : 1;
1968             free_streams(i);
1969
1970             pa_threaded_mainloop_unlock(i->mainloop);
1971             return 0;
1972
1973         case SNDCTL_DSP_CHANNELS: {
1974             pa_sample_spec ss;
1975             int valid;
1976
1977             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_CHANNELS: %i\n", *(int*) argp);
1978
1979             pa_threaded_mainloop_lock(i->mainloop);
1980
1981             ss = i->sample_spec;
1982             ss.channels = *(int*) argp;
1983
1984             if ((valid = pa_sample_spec_valid(&ss))) {
1985                 i->sample_spec = ss;
1986                 free_streams(i);
1987             }
1988
1989             pa_threaded_mainloop_unlock(i->mainloop);
1990
1991             if (!valid) {
1992                 *_errno = EINVAL;
1993                 goto fail;
1994             }
1995
1996             break;
1997         }
1998
1999         case SNDCTL_DSP_GETBLKSIZE:
2000             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETBLKSIZE\n");
2001
2002             pa_threaded_mainloop_lock(i->mainloop);
2003
2004             fix_metrics(i);
2005             *(int*) argp = i->fragment_size;
2006
2007             pa_threaded_mainloop_unlock(i->mainloop);
2008
2009             break;
2010
2011         case SNDCTL_DSP_SETFRAGMENT:
2012             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETFRAGMENT: 0x%08x\n", *(int*) argp);
2013
2014             pa_threaded_mainloop_lock(i->mainloop);
2015
2016             i->fragment_size = 1 << ((*(int*) argp) & 31);
2017             i->n_fragments = (*(int*) argp) >> 16;
2018
2019             /* 0x7FFF means that we can set whatever we like */
2020             if (i->n_fragments == 0x7FFF)
2021                 i->n_fragments = 12;
2022
2023             free_streams(i);
2024
2025             pa_threaded_mainloop_unlock(i->mainloop);
2026
2027             break;
2028
2029         case SNDCTL_DSP_GETCAPS:
2030             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_CAPS\n");
2031
2032             *(int*)  argp = DSP_CAP_DUPLEX | DSP_CAP_TRIGGER
2033 #ifdef DSP_CAP_MULTI
2034               | DSP_CAP_MULTI
2035 #endif
2036               ;
2037             break;
2038
2039         case SNDCTL_DSP_GETODELAY: {
2040             int l;
2041
2042             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETODELAY\n");
2043
2044             pa_threaded_mainloop_lock(i->mainloop);
2045
2046             *(int*) argp = 0;
2047
2048             for (;;) {
2049                 pa_usec_t usec;
2050
2051                 PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, exit_loop);
2052
2053                 if (pa_stream_get_latency(i->play_stream, &usec, NULL) >= 0) {
2054                     *(int*) argp = pa_usec_to_bytes(usec, &i->sample_spec);
2055                     break;
2056                 }
2057
2058                 if (pa_context_errno(i->context) != PA_ERR_NODATA) {
2059                     debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_get_latency(): %s\n", pa_strerror(pa_context_errno(i->context)));
2060                     break;
2061                 }
2062
2063                 pa_threaded_mainloop_wait(i->mainloop);
2064             }
2065
2066         exit_loop:
2067
2068 #ifdef SIOCINQ
2069             if (ioctl(i->thread_fd, SIOCINQ, &l) < 0)
2070                 debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ failed: %s\n", strerror(errno));
2071             else
2072                 *(int*) argp += l;
2073 #else
2074 # warning "Your platform does not support SIOCINQ, something might not work as intended."
2075 #endif
2076
2077             pa_threaded_mainloop_unlock(i->mainloop);
2078
2079             debug(DEBUG_LEVEL_NORMAL, __FILE__": ODELAY: %i\n", *(int*) argp);
2080
2081             break;
2082         }
2083
2084         case SNDCTL_DSP_RESET: {
2085             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_RESET\n");
2086
2087             pa_threaded_mainloop_lock(i->mainloop);
2088
2089             free_streams(i);
2090             dsp_flush_socket(i);
2091
2092             i->optr_n_blocks = 0;
2093
2094             pa_threaded_mainloop_unlock(i->mainloop);
2095             break;
2096         }
2097
2098         case SNDCTL_DSP_GETFMTS: {
2099             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETFMTS\n");
2100
2101             *(int*) argp = AFMT_MU_LAW|AFMT_A_LAW|AFMT_U8|AFMT_S16_LE|AFMT_S16_BE;
2102             break;
2103         }
2104
2105         case SNDCTL_DSP_POST:
2106             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_POST\n");
2107
2108             if (dsp_trigger(i) < 0)
2109                 *_errno = EIO;
2110             break;
2111
2112         case SNDCTL_DSP_GETTRIGGER:
2113             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETTRIGGER\n");
2114
2115             *(int*) argp = 0;
2116             if (!i->play_precork)
2117                 *(int*) argp |= PCM_ENABLE_OUTPUT;
2118             if (!i->rec_precork)
2119                 *(int*) argp |= PCM_ENABLE_INPUT;
2120
2121             break;
2122
2123         case SNDCTL_DSP_SETTRIGGER:
2124             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETTRIGGER: 0x%08x\n", *(int*) argp);
2125
2126             if (!i->io_event) {
2127                 *_errno = EIO;
2128                 break;
2129             }
2130
2131             i->play_precork = !((*(int*) argp) & PCM_ENABLE_OUTPUT);
2132
2133             if (i->play_stream) {
2134                 if (dsp_cork(i, i->play_stream, !((*(int*) argp) & PCM_ENABLE_OUTPUT)) < 0)
2135                     *_errno = EIO;
2136                 if (dsp_trigger(i) < 0)
2137                     *_errno = EIO;
2138             }
2139
2140             i->rec_precork = !((*(int*) argp) & PCM_ENABLE_INPUT);
2141
2142             if (i->rec_stream) {
2143                 if (dsp_cork(i, i->rec_stream, !((*(int*) argp) & PCM_ENABLE_INPUT)) < 0)
2144                     *_errno = EIO;
2145             }
2146
2147             break;
2148
2149         case SNDCTL_DSP_SYNC:
2150             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SYNC\n");
2151
2152             if (dsp_drain(i) < 0)
2153                 *_errno = EIO;
2154
2155             break;
2156
2157         case SNDCTL_DSP_GETOSPACE:
2158         case SNDCTL_DSP_GETISPACE: {
2159             audio_buf_info *bi = (audio_buf_info*) argp;
2160             int l = 0;
2161             size_t k = 0;
2162
2163             if (request == SNDCTL_DSP_GETOSPACE)
2164                 debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETOSPACE\n");
2165             else
2166                 debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETISPACE\n");
2167
2168             pa_threaded_mainloop_lock(i->mainloop);
2169
2170             fix_metrics(i);
2171
2172             if (request == SNDCTL_DSP_GETOSPACE) {
2173                 if (i->play_stream) {
2174                     if ((k = pa_stream_writable_size(i->play_stream)) == (size_t) -1)
2175                         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_writable_size(): %s\n", pa_strerror(pa_context_errno(i->context)));
2176                 } else
2177                     k = i->fragment_size * i->n_fragments;
2178
2179 #ifdef SIOCINQ
2180                 if (ioctl(i->thread_fd, SIOCINQ, &l) < 0) {
2181                     debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ failed: %s\n", strerror(errno));
2182                     l = 0;
2183                 }
2184 #else
2185 # warning "Your platform does not dsp_flush_fd, something might not work as intended."
2186 #endif
2187
2188                 bi->bytes = k > (size_t) l ? k - l : 0;
2189             } else {
2190                 if (i->rec_stream) {
2191                     if ((k = pa_stream_readable_size(i->rec_stream)) == (size_t) -1)
2192                         debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_readable_size(): %s\n", pa_strerror(pa_context_errno(i->context)));
2193                 } else
2194                     k = 0;
2195
2196 #ifdef SIOCINQ
2197                 if (ioctl(i->app_fd, SIOCINQ, &l) < 0) {
2198                     debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ failed: %s\n", strerror(errno));
2199                     l = 0;
2200                 }
2201 #else
2202 # warning "Your platform does not dsp_flush_fd, something might not work as intended."
2203 #endif
2204                 bi->bytes = k + l;
2205             }
2206
2207             bi->fragsize = i->fragment_size;
2208             bi->fragstotal = i->n_fragments;
2209             bi->fragments = bi->bytes / bi->fragsize;
2210
2211             pa_threaded_mainloop_unlock(i->mainloop);
2212
2213             debug(DEBUG_LEVEL_NORMAL, __FILE__": fragsize=%i, fragstotal=%i, bytes=%i, fragments=%i\n", bi->fragsize, bi->fragstotal, bi->bytes, bi->fragments);
2214
2215             break;
2216         }
2217
2218         case SOUND_PCM_READ_RATE:
2219             debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_RATE\n");
2220
2221             pa_threaded_mainloop_lock(i->mainloop);
2222             *(int*) argp = i->sample_spec.rate;
2223             pa_threaded_mainloop_unlock(i->mainloop);
2224             break;
2225
2226         case SOUND_PCM_READ_CHANNELS:
2227             debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_CHANNELS\n");
2228
2229             pa_threaded_mainloop_lock(i->mainloop);
2230             *(int*) argp = i->sample_spec.channels;
2231             pa_threaded_mainloop_unlock(i->mainloop);
2232             break;
2233
2234         case SOUND_PCM_READ_BITS:
2235             debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_BITS\n");
2236
2237             pa_threaded_mainloop_lock(i->mainloop);
2238             *(int*) argp = pa_sample_size(&i->sample_spec)*8;
2239             pa_threaded_mainloop_unlock(i->mainloop);
2240             break;
2241
2242         case SNDCTL_DSP_GETOPTR: {
2243             count_info *info;
2244
2245             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETOPTR\n");
2246
2247             info = (count_info*) argp;
2248             memset(info, 0, sizeof(*info));
2249
2250             pa_threaded_mainloop_lock(i->mainloop);
2251
2252             for (;;) {
2253                 pa_usec_t usec;
2254
2255                 PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, exit_loop);
2256
2257                 if (pa_stream_get_time(i->play_stream, &usec) >= 0) {
2258                     size_t k = pa_usec_to_bytes(usec, &i->sample_spec);
2259                     int m;
2260
2261                     info->bytes = (int) k;
2262                     m = k / i->fragment_size;
2263                     info->blocks = m - i->optr_n_blocks;
2264                     i->optr_n_blocks = m;
2265
2266                     break;
2267                 }
2268
2269                 if (pa_context_errno(i->context) != PA_ERR_NODATA) {
2270                     debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_get_latency(): %s\n", pa_strerror(pa_context_errno(i->context)));
2271                     break;
2272                 }
2273
2274                 pa_threaded_mainloop_wait(i->mainloop);
2275             }
2276
2277             pa_threaded_mainloop_unlock(i->mainloop);
2278
2279             debug(DEBUG_LEVEL_NORMAL, __FILE__": GETOPTR bytes=%i, blocks=%i, ptr=%i\n", info->bytes, info->blocks, info->ptr);
2280
2281             break;
2282         }
2283
2284         case SNDCTL_DSP_GETIPTR:
2285             debug(DEBUG_LEVEL_NORMAL, __FILE__": invalid ioctl SNDCTL_DSP_GETIPTR\n");
2286             goto inval;
2287
2288         case SNDCTL_DSP_SETDUPLEX:
2289             debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETDUPLEX\n");
2290             /* this is a no-op */
2291             break;
2292
2293         default:
2294             /* Mixer ioctls are valid on /dev/dsp aswell */
2295             return mixer_ioctl(i, request, argp, _errno);
2296
2297 inval:
2298             *_errno = EINVAL;
2299             goto fail;
2300     }
2301
2302     ret = 0;
2303
2304 fail:
2305
2306     return ret;
2307 }
2308
2309 #ifdef sun
2310 int ioctl(int fd, int request, ...) {
2311 #else
2312 int ioctl(int fd, unsigned long request, ...) {
2313 #endif
2314     fd_info *i;
2315     va_list args;
2316     void *argp;
2317     int r, _errno = 0;
2318
2319     debug(DEBUG_LEVEL_VERBOSE, __FILE__": ioctl()\n");
2320
2321     va_start(args, request);
2322     argp = va_arg(args, void *);
2323     va_end(args);
2324
2325     if (!function_enter()) {
2326         LOAD_IOCTL_FUNC();
2327         return _ioctl(fd, request, argp);
2328     }
2329
2330     if (!(i = fd_info_find(fd))) {
2331         function_exit();
2332         LOAD_IOCTL_FUNC();
2333         return _ioctl(fd, request, argp);
2334     }
2335
2336     if (i->type == FD_INFO_MIXER)
2337         r = mixer_ioctl(i, request, argp, &_errno);
2338     else
2339         r = dsp_ioctl(i, request, argp, &_errno);
2340
2341     fd_info_unref(i);
2342
2343     if (_errno)
2344         errno = _errno;
2345
2346     function_exit();
2347
2348     return r;
2349 }
2350
2351 int close(int fd) {
2352     fd_info *i;
2353
2354     debug(DEBUG_LEVEL_VERBOSE, __FILE__": close()\n");
2355
2356     if (!function_enter()) {
2357         LOAD_CLOSE_FUNC();
2358         return _close(fd);
2359     }
2360
2361     if (!(i = fd_info_find(fd))) {
2362         function_exit();
2363         LOAD_CLOSE_FUNC();
2364         return _close(fd);
2365     }
2366
2367     fd_info_remove_from_list(i);
2368     fd_info_unref(i);
2369
2370     function_exit();
2371
2372     return 0;
2373 }
2374
2375 int access(const char *pathname, int mode) {
2376
2377     debug(DEBUG_LEVEL_VERBOSE, __FILE__": access(%s)\n", pathname?pathname:"NULL");
2378
2379     if (!pathname ||
2380         ( strcmp(pathname, "/dev/dsp") != 0 &&
2381           strcmp(pathname, "/dev/adsp") != 0 &&
2382           strcmp(pathname, "/dev/sndstat") != 0 &&
2383           strcmp(pathname, "/dev/mixer") != 0 )) {
2384         LOAD_ACCESS_FUNC();
2385         return _access(pathname, mode);
2386     }
2387
2388     if (mode & (W_OK | X_OK)) {
2389         debug(DEBUG_LEVEL_NORMAL, __FILE__": access(%s, %x) = EACCESS\n", pathname, mode);
2390         errno = EACCES;
2391         return -1;
2392     }
2393
2394     debug(DEBUG_LEVEL_NORMAL, __FILE__": access(%s, %x) = OK\n", pathname, mode);
2395
2396     return 0;
2397 }
2398
2399 int stat(const char *pathname, struct stat *buf) {
2400 #ifdef HAVE_OPEN64
2401     struct stat64 parent;
2402 #else
2403     struct stat parent;
2404 #endif
2405     int ret;
2406
2407     if (!pathname ||
2408         !buf ||
2409         ( strcmp(pathname, "/dev/dsp") != 0 &&
2410           strcmp(pathname, "/dev/adsp") != 0 &&
2411           strcmp(pathname, "/dev/sndstat") != 0 &&
2412           strcmp(pathname, "/dev/mixer") != 0 )) {
2413         debug(DEBUG_LEVEL_VERBOSE, __FILE__": stat(%s)\n", pathname?pathname:"NULL");
2414         LOAD_STAT_FUNC();
2415         return _stat(pathname, buf);
2416     }
2417
2418     debug(DEBUG_LEVEL_NORMAL, __FILE__": stat(%s)\n", pathname);
2419
2420 #ifdef _STAT_VER
2421 #ifdef HAVE_OPEN64
2422     ret = __xstat64(_STAT_VER, "/dev", &parent);
2423 #else
2424     ret = __xstat(_STAT_VER, "/dev", &parent);
2425 #endif
2426 #else
2427 #ifdef HAVE_OPEN64
2428     ret = stat64("/dev", &parent);
2429 #else
2430     ret = stat("/dev", &parent);
2431 #endif
2432 #endif
2433
2434     if (ret) {
2435         debug(DEBUG_LEVEL_NORMAL, __FILE__": unable to stat \"/dev\"\n");
2436         return -1;
2437     }
2438
2439     buf->st_dev = parent.st_dev;
2440     buf->st_ino = 0xDEADBEEF;   /* FIXME: Can we do this in a safe way? */
2441     buf->st_mode = S_IFCHR | S_IRUSR | S_IWUSR;
2442     buf->st_nlink = 1;
2443     buf->st_uid = getuid();
2444     buf->st_gid = getgid();
2445     buf->st_rdev = 0x0E03;      /* FIXME: Linux specific */
2446     buf->st_size = 0;
2447     buf->st_atime = 1181557705;
2448     buf->st_mtime = 1181557705;
2449     buf->st_ctime = 1181557705;
2450     buf->st_blksize = 1;
2451     buf->st_blocks = 0;
2452
2453     return 0;
2454 }
2455
2456 #ifdef HAVE_OPEN64
2457
2458 int stat64(const char *pathname, struct stat64 *buf) {
2459     struct stat oldbuf;
2460     int ret;
2461
2462     debug(DEBUG_LEVEL_VERBOSE, __FILE__": stat64(%s)\n", pathname?pathname:"NULL");
2463
2464     if (!pathname ||
2465         !buf ||
2466         ( strcmp(pathname, "/dev/dsp") != 0 &&
2467           strcmp(pathname, "/dev/adsp") != 0 &&
2468           strcmp(pathname, "/dev/sndstat") != 0 &&
2469           strcmp(pathname, "/dev/mixer") != 0 )) {
2470         LOAD_STAT64_FUNC();
2471         return _stat64(pathname, buf);
2472     }
2473
2474     ret = stat(pathname, &oldbuf);
2475     if (ret)
2476         return ret;
2477
2478     buf->st_dev = oldbuf.st_dev;
2479     buf->st_ino = oldbuf.st_ino;
2480     buf->st_mode = oldbuf.st_mode;
2481     buf->st_nlink = oldbuf.st_nlink;
2482     buf->st_uid = oldbuf.st_uid;
2483     buf->st_gid = oldbuf.st_gid;
2484     buf->st_rdev = oldbuf.st_rdev;
2485     buf->st_size = oldbuf.st_size;
2486     buf->st_atime = oldbuf.st_atime;
2487     buf->st_mtime = oldbuf.st_mtime;
2488     buf->st_ctime = oldbuf.st_ctime;
2489     buf->st_blksize = oldbuf.st_blksize;
2490     buf->st_blocks = oldbuf.st_blocks;
2491
2492     return 0;
2493 }
2494
2495 int open64(const char *filename, int flags, ...) {
2496     va_list args;
2497     mode_t mode = 0;
2498
2499     debug(DEBUG_LEVEL_VERBOSE, __FILE__": open64(%s)\n", filename?filename:"NULL");
2500
2501     if (flags & O_CREAT) {
2502         va_start(args, flags);
2503         if (sizeof(mode_t) < sizeof(int))
2504             mode = va_arg(args, int);
2505         else
2506             mode = va_arg(args, mode_t);
2507         va_end(args);
2508     }
2509
2510     if (!filename ||
2511         ( strcmp(filename, "/dev/dsp") != 0 &&
2512           strcmp(filename, "/dev/adsp") != 0 &&
2513           strcmp(filename, "/dev/sndstat") != 0 &&
2514           strcmp(filename, "/dev/mixer") != 0 )) {
2515         LOAD_OPEN64_FUNC();
2516         return _open64(filename, flags, mode);
2517     }
2518
2519     return real_open(filename, flags, mode);
2520 }
2521
2522 #endif
2523
2524 #ifdef _STAT_VER
2525
2526 int __xstat(int ver, const char *pathname, struct stat *buf) {
2527     debug(DEBUG_LEVEL_VERBOSE, __FILE__": __xstat(%s)\n", pathname?pathname:"NULL");
2528
2529     if (!pathname ||
2530         !buf ||
2531         ( strcmp(pathname, "/dev/dsp") != 0 &&
2532           strcmp(pathname, "/dev/adsp") != 0 &&
2533           strcmp(pathname, "/dev/sndstat") != 0 &&
2534           strcmp(pathname, "/dev/mixer") != 0 )) {
2535         LOAD_XSTAT_FUNC();
2536         return ___xstat(ver, pathname, buf);
2537     }
2538
2539     if (ver != _STAT_VER) {
2540         errno = EINVAL;
2541         return -1;
2542     }
2543
2544     return stat(pathname, buf);
2545 }
2546
2547 #ifdef HAVE_OPEN64
2548
2549 int __xstat64(int ver, const char *pathname, struct stat64 *buf) {
2550     debug(DEBUG_LEVEL_VERBOSE, __FILE__": __xstat64(%s)\n", pathname?pathname:"NULL");
2551
2552     if (!pathname ||
2553         !buf ||
2554         ( strcmp(pathname, "/dev/dsp") != 0 &&
2555           strcmp(pathname, "/dev/adsp") != 0 &&
2556           strcmp(pathname, "/dev/sndstat") != 0 &&
2557           strcmp(pathname, "/dev/mixer") != 0 )) {
2558         LOAD_XSTAT64_FUNC();
2559         return ___xstat64(ver, pathname, buf);
2560     }
2561
2562     if (ver != _STAT_VER) {
2563         errno = EINVAL;
2564         return -1;
2565     }
2566
2567     return stat64(pathname, buf);
2568 }
2569
2570 #endif
2571
2572 #endif
2573
2574 FILE* fopen(const char *filename, const char *mode) {
2575     FILE *f = NULL;
2576     int fd;
2577     mode_t m;
2578
2579     debug(DEBUG_LEVEL_VERBOSE, __FILE__": fopen(%s)\n", filename?filename:"NULL");
2580
2581     if (!filename ||
2582         !mode ||
2583         ( strcmp(filename, "/dev/dsp") != 0 &&
2584           strcmp(filename, "/dev/adsp") != 0 &&
2585           strcmp(filename, "/dev/sndstat") != 0 &&
2586           strcmp(filename, "/dev/mixer") != 0 )) {
2587         LOAD_FOPEN_FUNC();
2588         return _fopen(filename, mode);
2589     }
2590
2591     switch (mode[0]) {
2592     case 'r':
2593         m = O_RDONLY;
2594         break;
2595     case 'w':
2596     case 'a':
2597         m = O_WRONLY;
2598         break;
2599     default:
2600         errno = EINVAL;
2601         return NULL;
2602     }
2603
2604     if ((((mode[1] == 'b') || (mode[1] == 't')) && (mode[2] == '+')) || (mode[1] == '+'))
2605         m = O_RDWR;
2606
2607     if ((fd = real_open(filename, m, 0)) < 0)
2608         return NULL;
2609
2610     if (!(f = fdopen(fd, mode))) {
2611         close(fd);
2612         return NULL;
2613     }
2614
2615     return f;
2616 }
2617
2618 #ifdef HAVE_OPEN64
2619
2620 FILE *fopen64(const char *filename, const char *mode) {
2621
2622     debug(DEBUG_LEVEL_VERBOSE, __FILE__": fopen64(%s)\n", filename?filename:"NULL");
2623
2624     if (!filename ||
2625         !mode ||
2626         ( strcmp(filename, "/dev/dsp") != 0 &&
2627           strcmp(filename, "/dev/adsp") != 0 &&
2628           strcmp(filename, "/dev/sndstat") != 0 &&
2629           strcmp(filename, "/dev/mixer") != 0 )) {
2630         LOAD_FOPEN64_FUNC();
2631         return _fopen64(filename, mode);
2632     }
2633
2634     return fopen(filename, mode);
2635 }
2636
2637 #endif
2638
2639 int fclose(FILE *f) {
2640     fd_info *i;
2641
2642     debug(DEBUG_LEVEL_VERBOSE, __FILE__": fclose()\n");
2643
2644     if (!function_enter()) {
2645         LOAD_FCLOSE_FUNC();
2646         return _fclose(f);
2647     }
2648
2649     if (!(i = fd_info_find(fileno(f)))) {
2650         function_exit();
2651         LOAD_FCLOSE_FUNC();
2652         return _fclose(f);
2653     }
2654
2655     fd_info_remove_from_list(i);
2656
2657     /* Dirty trick to avoid that the fd is not freed twice, once by us
2658      * and once by the real fclose() */
2659     i->app_fd = -1;
2660
2661     fd_info_unref(i);
2662
2663     function_exit();
2664
2665     LOAD_FCLOSE_FUNC();
2666     return _fclose(f);
2667 }