/*** This file is part of PulseAudio. Copyright 2006 Lennart Poettering Copyright 2006-2007 Pierre Ossman for Cendio AB PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. PulseAudio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. ***/ #ifdef HAVE_CONFIG_H #include #endif #ifdef _FILE_OFFSET_BITS #undef _FILE_OFFSET_BITS #endif #ifndef _LARGEFILE64_SOURCE #define _LARGEFILE64_SOURCE 1 #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef __linux__ #include #endif #include #include #include #include /* On some systems SIOCINQ isn't defined, but FIONREAD is just an alias */ #if !defined(SIOCINQ) && defined(FIONREAD) # define SIOCINQ FIONREAD #endif /* make sure gcc doesn't redefine open and friends as macros */ #undef open #undef open64 typedef enum { FD_INFO_MIXER, FD_INFO_STREAM, } fd_info_type_t; typedef struct fd_info fd_info; struct fd_info { pthread_mutex_t mutex; int ref; int unusable; fd_info_type_t type; int app_fd, thread_fd; pa_sample_spec sample_spec; size_t fragment_size; unsigned n_fragments; pa_threaded_mainloop *mainloop; pa_context *context; pa_stream *play_stream; pa_stream *rec_stream; int play_precork; int rec_precork; pa_io_event *io_event; pa_io_event_flags_t io_flags; void *buf; size_t rec_offset; int operation_success; pa_cvolume sink_volume, source_volume; uint32_t sink_index, source_index; int volume_modify_count; int optr_n_blocks; PA_LLIST_FIELDS(fd_info); }; static int dsp_drain(fd_info *i); static void fd_info_remove_from_list(fd_info *i); static pthread_mutex_t fd_infos_mutex = PTHREAD_MUTEX_INITIALIZER; static pthread_mutex_t func_mutex = PTHREAD_MUTEX_INITIALIZER; static PA_LLIST_HEAD(fd_info, fd_infos) = NULL; static int (*_ioctl)(int, int, void*) = NULL; static int (*_close)(int) = NULL; static int (*_open)(const char *, int, mode_t) = NULL; static int (*___open_2)(const char *, int) = NULL; static FILE* (*_fopen)(const char *path, const char *mode) = NULL; static int (*_stat)(const char *, struct stat *) = NULL; #ifdef _STAT_VER static int (*___xstat)(int, const char *, struct stat *) = NULL; #endif #ifdef HAVE_OPEN64 static int (*_open64)(const char *, int, mode_t) = NULL; static int (*___open64_2)(const char *, int) = NULL; static FILE* (*_fopen64)(const char *path, const char *mode) = NULL; static int (*_stat64)(const char *, struct stat64 *) = NULL; #ifdef _STAT_VER static int (*___xstat64)(int, const char *, struct stat64 *) = NULL; #endif #endif static int (*_fclose)(FILE *f) = NULL; static int (*_access)(const char *, int) = NULL; /* dlsym() violates ISO C, so confide the breakage into this function to * avoid warnings. */ typedef void (*fnptr)(void); static inline fnptr dlsym_fn(void *handle, const char *symbol) { return (fnptr) (long) dlsym(handle, symbol); } #define LOAD_IOCTL_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!_ioctl) \ _ioctl = (int (*)(int, int, void*)) dlsym_fn(RTLD_NEXT, "ioctl"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_OPEN_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!_open) \ _open = (int (*)(const char *, int, mode_t)) dlsym_fn(RTLD_NEXT, "open"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD___OPEN_2_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!___open_2) \ ___open_2 = (int (*)(const char *, int)) dlsym_fn(RTLD_NEXT, "__open_2"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_OPEN64_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!_open64) \ _open64 = (int (*)(const char *, int, mode_t)) dlsym_fn(RTLD_NEXT, "open64"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD___OPEN64_2_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!___open64_2) \ ___open64_2 = (int (*)(const char *, int)) dlsym_fn(RTLD_NEXT, "__open64_2"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_CLOSE_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!_close) \ _close = (int (*)(int)) dlsym_fn(RTLD_NEXT, "close"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_ACCESS_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!_access) \ _access = (int (*)(const char*, int)) dlsym_fn(RTLD_NEXT, "access"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_STAT_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!_stat) \ _stat = (int (*)(const char *, struct stat *)) dlsym_fn(RTLD_NEXT, "stat"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_STAT64_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!_stat64) \ _stat64 = (int (*)(const char *, struct stat64 *)) dlsym_fn(RTLD_NEXT, "stat64"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_XSTAT_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!___xstat) \ ___xstat = (int (*)(int, const char *, struct stat *)) dlsym_fn(RTLD_NEXT, "__xstat"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_XSTAT64_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!___xstat64) \ ___xstat64 = (int (*)(int, const char *, struct stat64 *)) dlsym_fn(RTLD_NEXT, "__xstat64"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_FOPEN_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!_fopen) \ _fopen = (FILE* (*)(const char *, const char*)) dlsym_fn(RTLD_NEXT, "fopen"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_FOPEN64_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!_fopen64) \ _fopen64 = (FILE* (*)(const char *, const char*)) dlsym_fn(RTLD_NEXT, "fopen64"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define LOAD_FCLOSE_FUNC() \ do { \ pthread_mutex_lock(&func_mutex); \ if (!_fclose) \ _fclose = (int (*)(FILE *)) dlsym_fn(RTLD_NEXT, "fclose"); \ pthread_mutex_unlock(&func_mutex); \ } while(0) #define CONTEXT_CHECK_DEAD_GOTO(i, label) do { \ if (!(i)->context || pa_context_get_state((i)->context) != PA_CONTEXT_READY) { \ debug(DEBUG_LEVEL_NORMAL, __FILE__": Not connected: %s\n", (i)->context ? pa_strerror(pa_context_errno((i)->context)) : "NULL"); \ goto label; \ } \ } while(0) #define PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, label) do { \ if (!(i)->context || pa_context_get_state((i)->context) != PA_CONTEXT_READY || \ !(i)->play_stream || pa_stream_get_state((i)->play_stream) != PA_STREAM_READY) { \ debug(DEBUG_LEVEL_NORMAL, __FILE__": Not connected: %s\n", (i)->context ? pa_strerror(pa_context_errno((i)->context)) : "NULL"); \ goto label; \ } \ } while(0) #define RECORD_STREAM_CHECK_DEAD_GOTO(i, label) do { \ if (!(i)->context || pa_context_get_state((i)->context) != PA_CONTEXT_READY || \ !(i)->rec_stream || pa_stream_get_state((i)->rec_stream) != PA_STREAM_READY) { \ debug(DEBUG_LEVEL_NORMAL, __FILE__": Not connected: %s\n", (i)->context ? pa_strerror(pa_context_errno((i)->context)) : "NULL"); \ goto label; \ } \ } while(0) static void debug(int level, const char *format, ...) PA_GCC_PRINTF_ATTR(2,3); #define DEBUG_LEVEL_ALWAYS 0 #define DEBUG_LEVEL_NORMAL 1 #define DEBUG_LEVEL_VERBOSE 2 static void debug(int level, const char *format, ...) { va_list ap; const char *dlevel_s; int dlevel; dlevel_s = getenv("PADSP_DEBUG"); if (!dlevel_s) return; dlevel = atoi(dlevel_s); if (dlevel < level) return; va_start(ap, format); vfprintf(stderr, format, ap); va_end(ap); } static int padsp_disabled(void) { static int *sym; static int sym_resolved = 0; /* If the current process has a symbol __padsp_disabled__ we use * it to detect whether we should enable our stuff or not. A * program needs to be compiled with -rdynamic for this to work! * The symbol must be an int containing a three bit bitmask: bit 1 * -> disable /dev/dsp emulation, bit 2 -> disable /dev/sndstat * emulation, bit 3 -> disable /dev/mixer emulation. Hence a value * of 7 disables padsp entirely. */ pthread_mutex_lock(&func_mutex); if (!sym_resolved) { sym = (int*) dlsym(RTLD_DEFAULT, "__padsp_disabled__"); sym_resolved = 1; } pthread_mutex_unlock(&func_mutex); if (!sym) return 0; return *sym; } static int dsp_cloak_enable(void) { if (padsp_disabled() & 1) return 0; if (getenv("PADSP_NO_DSP") || getenv("PULSE_INTERNAL")) return 0; return 1; } static int sndstat_cloak_enable(void) { if (padsp_disabled() & 2) return 0; if (getenv("PADSP_NO_SNDSTAT") || getenv("PULSE_INTERNAL")) return 0; return 1; } static int mixer_cloak_enable(void) { if (padsp_disabled() & 4) return 0; if (getenv("PADSP_NO_MIXER") || getenv("PULSE_INTERNAL")) return 0; return 1; } static pthread_key_t recursion_key; static void recursion_key_alloc(void) { pthread_key_create(&recursion_key, NULL); } static int function_enter(void) { /* Avoid recursive calls */ static pthread_once_t recursion_key_once = PTHREAD_ONCE_INIT; pthread_once(&recursion_key_once, recursion_key_alloc); if (pthread_getspecific(recursion_key)) return 0; pthread_setspecific(recursion_key, (void*) 1); return 1; } static void function_exit(void) { pthread_setspecific(recursion_key, NULL); } static void fd_info_free(fd_info *i) { assert(i); debug(DEBUG_LEVEL_NORMAL, __FILE__": freeing fd info (fd=%i)\n", i->app_fd); dsp_drain(i); if (i->mainloop) pa_threaded_mainloop_stop(i->mainloop); if (i->play_stream) { pa_stream_disconnect(i->play_stream); pa_stream_unref(i->play_stream); } if (i->rec_stream) { pa_stream_disconnect(i->rec_stream); pa_stream_unref(i->rec_stream); } if (i->context) { pa_context_disconnect(i->context); pa_context_unref(i->context); } if (i->mainloop) pa_threaded_mainloop_free(i->mainloop); if (i->app_fd >= 0) { LOAD_CLOSE_FUNC(); _close(i->app_fd); } if (i->thread_fd >= 0) { LOAD_CLOSE_FUNC(); _close(i->thread_fd); } free(i->buf); pthread_mutex_destroy(&i->mutex); free(i); } static fd_info *fd_info_ref(fd_info *i) { assert(i); pthread_mutex_lock(&i->mutex); assert(i->ref >= 1); i->ref++; debug(DEBUG_LEVEL_VERBOSE, __FILE__": ref++, now %i\n", i->ref); pthread_mutex_unlock(&i->mutex); return i; } static void fd_info_unref(fd_info *i) { int r; pthread_mutex_lock(&i->mutex); assert(i->ref >= 1); r = --i->ref; debug(DEBUG_LEVEL_VERBOSE, __FILE__": ref--, now %i\n", i->ref); pthread_mutex_unlock(&i->mutex); if (r <= 0) fd_info_free(i); } static void context_state_cb(pa_context *c, void *userdata) { fd_info *i = userdata; assert(c); switch (pa_context_get_state(c)) { case PA_CONTEXT_READY: case PA_CONTEXT_TERMINATED: case PA_CONTEXT_FAILED: pa_threaded_mainloop_signal(i->mainloop, 0); break; case PA_CONTEXT_UNCONNECTED: case PA_CONTEXT_CONNECTING: case PA_CONTEXT_AUTHORIZING: case PA_CONTEXT_SETTING_NAME: break; } } static void reset_params(fd_info *i) { assert(i); i->sample_spec.format = PA_SAMPLE_U8; i->sample_spec.channels = 1; i->sample_spec.rate = 8000; i->fragment_size = 0; i->n_fragments = 0; } static const char *client_name(char *buf, size_t n) { char *p; const char *e; if ((e = getenv("PADSP_CLIENT_NAME"))) return e; if ((p = pa_get_binary_name_malloc())) { snprintf(buf, n, "OSS Emulation[%s]", p); pa_xfree(p); } else snprintf(buf, n, "OSS"); return buf; } static const char *stream_name(void) { const char *e; if ((e = getenv("PADSP_STREAM_NAME"))) return e; return "Audio Stream"; } static void atfork_prepare(void) { fd_info *i; debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_prepare() enter\n"); function_enter(); pthread_mutex_lock(&fd_infos_mutex); for (i = fd_infos; i; i = i->next) { pthread_mutex_lock(&i->mutex); pa_threaded_mainloop_lock(i->mainloop); } pthread_mutex_lock(&func_mutex); debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_prepare() exit\n"); } static void atfork_parent(void) { fd_info *i; debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_parent() enter\n"); pthread_mutex_unlock(&func_mutex); for (i = fd_infos; i; i = i->next) { pa_threaded_mainloop_unlock(i->mainloop); pthread_mutex_unlock(&i->mutex); } pthread_mutex_unlock(&fd_infos_mutex); function_exit(); debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_parent() exit\n"); } static void atfork_child(void) { fd_info *i; debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_child() enter\n"); /* We do only the bare minimum to get all fds closed */ pthread_mutex_init(&func_mutex, NULL); pthread_mutex_init(&fd_infos_mutex, NULL); for (i = fd_infos; i; i = i->next) { pthread_mutex_init(&i->mutex, NULL); if (i->context) { pa_context_disconnect(i->context); pa_context_unref(i->context); i->context = NULL; } if (i->play_stream) { pa_stream_unref(i->play_stream); i->play_stream = NULL; } if (i->rec_stream) { pa_stream_unref(i->rec_stream); i->rec_stream = NULL; } if (i->app_fd >= 0) { LOAD_CLOSE_FUNC(); _close(i->app_fd); i->app_fd = -1; } if (i->thread_fd >= 0) { LOAD_CLOSE_FUNC(); _close(i->thread_fd); i->thread_fd = -1; } i->unusable = 1; } function_exit(); debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_child() exit\n"); } static void install_atfork(void) { pthread_atfork(atfork_prepare, atfork_parent, atfork_child); } static void stream_success_cb(pa_stream *s, int success, void *userdata) { fd_info *i = userdata; assert(s); assert(i); i->operation_success = success; pa_threaded_mainloop_signal(i->mainloop, 0); } static void context_success_cb(pa_context *c, int success, void *userdata) { fd_info *i = userdata; assert(c); assert(i); i->operation_success = success; pa_threaded_mainloop_signal(i->mainloop, 0); } static fd_info* fd_info_new(fd_info_type_t type, int *_errno) { fd_info *i; int sfds[2] = { -1, -1 }; char name[64]; static pthread_once_t install_atfork_once = PTHREAD_ONCE_INIT; debug(DEBUG_LEVEL_NORMAL, __FILE__": fd_info_new()\n"); signal(SIGPIPE, SIG_IGN); /* Yes, ugly as hell */ pthread_once(&install_atfork_once, install_atfork); if (!(i = malloc(sizeof(fd_info)))) { *_errno = ENOMEM; goto fail; } i->app_fd = i->thread_fd = -1; i->type = type; i->mainloop = NULL; i->context = NULL; i->play_stream = NULL; i->rec_stream = NULL; i->play_precork = 0; i->rec_precork = 0; i->io_event = NULL; i->io_flags = 0; pthread_mutex_init(&i->mutex, NULL); i->ref = 1; i->buf = NULL; i->rec_offset = 0; i->unusable = 0; pa_cvolume_reset(&i->sink_volume, 2); pa_cvolume_reset(&i->source_volume, 2); i->volume_modify_count = 0; i->sink_index = (uint32_t) -1; i->source_index = (uint32_t) -1; i->optr_n_blocks = 0; PA_LLIST_INIT(fd_info, i); reset_params(i); if (socketpair(AF_UNIX, SOCK_STREAM, 0, sfds) < 0) { *_errno = errno; debug(DEBUG_LEVEL_NORMAL, __FILE__": socket() failed: %s\n", strerror(errno)); goto fail; } i->app_fd = sfds[0]; i->thread_fd = sfds[1]; if (!(i->mainloop = pa_threaded_mainloop_new())) { *_errno = EIO; debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_threaded_mainloop_new() failed\n"); goto fail; } if (!(i->context = pa_context_new(pa_threaded_mainloop_get_api(i->mainloop), client_name(name, sizeof(name))))) { *_errno = EIO; debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_context_new() failed\n"); goto fail; } pa_context_set_state_callback(i->context, context_state_cb, i); if (pa_context_connect(i->context, NULL, 0, NULL) < 0) { *_errno = ECONNREFUSED; debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_context_connect() failed: %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } pa_threaded_mainloop_lock(i->mainloop); if (pa_threaded_mainloop_start(i->mainloop) < 0) { *_errno = EIO; debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_threaded_mainloop_start() failed\n"); goto unlock_and_fail; } /* Wait until the context is ready */ pa_threaded_mainloop_wait(i->mainloop); if (pa_context_get_state(i->context) != PA_CONTEXT_READY) { *_errno = ECONNREFUSED; debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_context_connect() failed: %s\n", pa_strerror(pa_context_errno(i->context))); goto unlock_and_fail; } pa_threaded_mainloop_unlock(i->mainloop); return i; unlock_and_fail: pa_threaded_mainloop_unlock(i->mainloop); fail: if (i) fd_info_unref(i); return NULL; } static void fd_info_add_to_list(fd_info *i) { assert(i); pthread_mutex_lock(&fd_infos_mutex); PA_LLIST_PREPEND(fd_info, fd_infos, i); pthread_mutex_unlock(&fd_infos_mutex); fd_info_ref(i); } static void fd_info_remove_from_list(fd_info *i) { assert(i); pthread_mutex_lock(&fd_infos_mutex); PA_LLIST_REMOVE(fd_info, fd_infos, i); pthread_mutex_unlock(&fd_infos_mutex); fd_info_unref(i); } static fd_info* fd_info_find(int fd) { fd_info *i; pthread_mutex_lock(&fd_infos_mutex); for (i = fd_infos; i; i = i->next) if (i->app_fd == fd && !i->unusable) { fd_info_ref(i); break; } pthread_mutex_unlock(&fd_infos_mutex); return i; } static void fix_metrics(fd_info *i) { size_t fs; char t[PA_SAMPLE_SPEC_SNPRINT_MAX]; fs = pa_frame_size(&i->sample_spec); /* Don't fix things more than necessary */ if ((i->fragment_size % fs) == 0 && i->n_fragments >= 2 && i->fragment_size > 0) return; i->fragment_size = (i->fragment_size/fs)*fs; /* Number of fragments set? */ if (i->n_fragments < 2) { if (i->fragment_size > 0) { i->n_fragments = (unsigned) (pa_bytes_per_second(&i->sample_spec) / 2 / i->fragment_size); if (i->n_fragments < 2) i->n_fragments = 2; } else i->n_fragments = 12; } /* Fragment size set? */ if (i->fragment_size <= 0) { i->fragment_size = pa_bytes_per_second(&i->sample_spec) / 2 / i->n_fragments; if (i->fragment_size < 1024) i->fragment_size = 1024; } debug(DEBUG_LEVEL_NORMAL, __FILE__": sample spec: %s\n", pa_sample_spec_snprint(t, sizeof(t), &i->sample_spec)); debug(DEBUG_LEVEL_NORMAL, __FILE__": fixated metrics to %i fragments, %li bytes each.\n", i->n_fragments, (long)i->fragment_size); } static void stream_request_cb(pa_stream *s, size_t length, void *userdata) { fd_info *i = userdata; assert(s); if (i->io_event) { pa_mainloop_api *api; size_t n; api = pa_threaded_mainloop_get_api(i->mainloop); if (s == i->play_stream) { n = pa_stream_writable_size(i->play_stream); if (n == (size_t)-1) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_writable_size(): %s\n", pa_strerror(pa_context_errno(i->context))); } if (n >= i->fragment_size) i->io_flags |= PA_IO_EVENT_INPUT; else i->io_flags &= ~PA_IO_EVENT_INPUT; } if (s == i->rec_stream) { n = pa_stream_readable_size(i->rec_stream); if (n == (size_t)-1) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_readable_size(): %s\n", pa_strerror(pa_context_errno(i->context))); } if (n >= i->fragment_size) i->io_flags |= PA_IO_EVENT_OUTPUT; else i->io_flags &= ~PA_IO_EVENT_OUTPUT; } api->io_enable(i->io_event, i->io_flags); } } static void stream_latency_update_cb(pa_stream *s, void *userdata) { fd_info *i = userdata; assert(s); pa_threaded_mainloop_signal(i->mainloop, 0); } static void fd_info_shutdown(fd_info *i) { assert(i); if (i->io_event) { pa_mainloop_api *api; api = pa_threaded_mainloop_get_api(i->mainloop); api->io_free(i->io_event); i->io_event = NULL; i->io_flags = 0; } if (i->thread_fd >= 0) { close(i->thread_fd); i->thread_fd = -1; } } static int fd_info_copy_data(fd_info *i, int force) { size_t n; if (!i->play_stream && !i->rec_stream) return -1; if ((i->play_stream) && (pa_stream_get_state(i->play_stream) == PA_STREAM_READY)) { n = pa_stream_writable_size(i->play_stream); if (n == (size_t)-1) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_writable_size(): %s\n", pa_strerror(pa_context_errno(i->context))); return -1; } while (n >= i->fragment_size || force) { ssize_t r; if (!i->buf) { if (!(i->buf = malloc(i->fragment_size))) { debug(DEBUG_LEVEL_NORMAL, __FILE__": malloc() failed.\n"); return -1; } } if ((r = read(i->thread_fd, i->buf, i->fragment_size)) <= 0) { if (errno == EAGAIN) break; debug(DEBUG_LEVEL_NORMAL, __FILE__": read(): %s\n", r == 0 ? "EOF" : strerror(errno)); return -1; } if (pa_stream_write(i->play_stream, i->buf, (size_t) r, free, 0LL, PA_SEEK_RELATIVE) < 0) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_write(): %s\n", pa_strerror(pa_context_errno(i->context))); return -1; } i->buf = NULL; assert(n >= (size_t) r); n -= (size_t) r; } if (n >= i->fragment_size) i->io_flags |= PA_IO_EVENT_INPUT; else i->io_flags &= ~PA_IO_EVENT_INPUT; } if ((i->rec_stream) && (pa_stream_get_state(i->rec_stream) == PA_STREAM_READY)) { n = pa_stream_readable_size(i->rec_stream); if (n == (size_t)-1) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_readable_size(): %s\n", pa_strerror(pa_context_errno(i->context))); return -1; } while (n >= i->fragment_size || force) { ssize_t r; const void *data; const char *buf; size_t len; if (pa_stream_peek(i->rec_stream, &data, &len) < 0) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_peek(): %s\n", pa_strerror(pa_context_errno(i->context))); return -1; } if (!data) break; buf = (const char*)data + i->rec_offset; if ((r = write(i->thread_fd, buf, len - i->rec_offset)) <= 0) { if (errno == EAGAIN) break; debug(DEBUG_LEVEL_NORMAL, __FILE__": write(): %s\n", strerror(errno)); return -1; } assert((size_t)r <= len - i->rec_offset); i->rec_offset += (size_t) r; if (i->rec_offset == len) { if (pa_stream_drop(i->rec_stream) < 0) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_drop(): %s\n", pa_strerror(pa_context_errno(i->context))); return -1; } i->rec_offset = 0; } assert(n >= (size_t) r); n -= (size_t) r; } if (n >= i->fragment_size) i->io_flags |= PA_IO_EVENT_OUTPUT; else i->io_flags &= ~PA_IO_EVENT_OUTPUT; } if (i->io_event) { pa_mainloop_api *api; api = pa_threaded_mainloop_get_api(i->mainloop); api->io_enable(i->io_event, i->io_flags); } /* So, we emptied the socket now, let's tell dsp_empty_socket() * about this */ pa_threaded_mainloop_signal(i->mainloop, 0); return 0; } static void stream_state_cb(pa_stream *s, void * userdata) { fd_info *i = userdata; assert(s); switch (pa_stream_get_state(s)) { case PA_STREAM_READY: debug(DEBUG_LEVEL_NORMAL, __FILE__": stream established.\n"); break; case PA_STREAM_FAILED: if (s == i->play_stream) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(i->context))); pa_stream_unref(i->play_stream); i->play_stream = NULL; } else if (s == i->rec_stream) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(i->context))); pa_stream_unref(i->rec_stream); i->rec_stream = NULL; } fd_info_shutdown(i); break; case PA_STREAM_TERMINATED: case PA_STREAM_UNCONNECTED: case PA_STREAM_CREATING: break; } } static int create_playback_stream(fd_info *i) { pa_buffer_attr attr; int n, flags; assert(i); fix_metrics(i); if (!(i->play_stream = pa_stream_new(i->context, stream_name(), &i->sample_spec, NULL))) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } pa_stream_set_state_callback(i->play_stream, stream_state_cb, i); pa_stream_set_write_callback(i->play_stream, stream_request_cb, i); pa_stream_set_latency_update_callback(i->play_stream, stream_latency_update_cb, i); memset(&attr, 0, sizeof(attr)); attr.maxlength = (uint32_t) (i->fragment_size * (i->n_fragments+1)); attr.tlength = (uint32_t) (i->fragment_size * i->n_fragments); attr.prebuf = (uint32_t) i->fragment_size; attr.minreq = (uint32_t) i->fragment_size; flags = PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE|PA_STREAM_EARLY_REQUESTS; if (i->play_precork) { flags |= PA_STREAM_START_CORKED; debug(DEBUG_LEVEL_NORMAL, __FILE__": creating stream corked\n"); } if (pa_stream_connect_playback(i->play_stream, NULL, &attr, flags, NULL, NULL) < 0) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } n = (int) i->fragment_size; setsockopt(i->app_fd, SOL_SOCKET, SO_SNDBUF, &n, sizeof(n)); n = (int) i->fragment_size; setsockopt(i->thread_fd, SOL_SOCKET, SO_RCVBUF, &n, sizeof(n)); return 0; fail: return -1; } static int create_record_stream(fd_info *i) { pa_buffer_attr attr; int n, flags; assert(i); fix_metrics(i); if (!(i->rec_stream = pa_stream_new(i->context, stream_name(), &i->sample_spec, NULL))) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } pa_stream_set_state_callback(i->rec_stream, stream_state_cb, i); pa_stream_set_read_callback(i->rec_stream, stream_request_cb, i); pa_stream_set_latency_update_callback(i->rec_stream, stream_latency_update_cb, i); memset(&attr, 0, sizeof(attr)); attr.maxlength = (uint32_t) (i->fragment_size * (i->n_fragments+1)); attr.fragsize = (uint32_t) i->fragment_size; flags = PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE; if (i->rec_precork) { flags |= PA_STREAM_START_CORKED; debug(DEBUG_LEVEL_NORMAL, __FILE__": creating stream corked\n"); } if (pa_stream_connect_record(i->rec_stream, NULL, &attr, flags) < 0) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } n = (int) i->fragment_size; setsockopt(i->app_fd, SOL_SOCKET, SO_RCVBUF, &n, sizeof(n)); n = (int) i->fragment_size; setsockopt(i->thread_fd, SOL_SOCKET, SO_SNDBUF, &n, sizeof(n)); return 0; fail: return -1; } static void free_streams(fd_info *i) { assert(i); if (i->play_stream) { pa_stream_disconnect(i->play_stream); pa_stream_unref(i->play_stream); i->play_stream = NULL; i->io_flags |= PA_IO_EVENT_INPUT; } if (i->rec_stream) { pa_stream_disconnect(i->rec_stream); pa_stream_unref(i->rec_stream); i->rec_stream = NULL; i->io_flags |= PA_IO_EVENT_OUTPUT; } if (i->io_event) { pa_mainloop_api *api; api = pa_threaded_mainloop_get_api(i->mainloop); api->io_enable(i->io_event, i->io_flags); } } static void io_event_cb(pa_mainloop_api *api, pa_io_event *e, int fd, pa_io_event_flags_t flags, void *userdata) { fd_info *i = userdata; pa_threaded_mainloop_signal(i->mainloop, 0); if (flags & PA_IO_EVENT_INPUT) { if (!i->play_stream) { if (create_playback_stream(i) < 0) goto fail; } else { if (fd_info_copy_data(i, 0) < 0) goto fail; } } else if (flags & PA_IO_EVENT_OUTPUT) { if (!i->rec_stream) { if (create_record_stream(i) < 0) goto fail; } else { if (fd_info_copy_data(i, 0) < 0) goto fail; } } else if (flags & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR)) goto fail; return; fail: /* We can't do anything better than removing the event source */ fd_info_shutdown(i); } static int dsp_open(int flags, int *_errno) { fd_info *i; pa_mainloop_api *api; int ret; int f; debug(DEBUG_LEVEL_NORMAL, __FILE__": dsp_open()\n"); if (!(i = fd_info_new(FD_INFO_STREAM, _errno))) return -1; if ((flags & O_NONBLOCK) == O_NONBLOCK) { if ((f = fcntl(i->app_fd, F_GETFL)) >= 0) fcntl(i->app_fd, F_SETFL, f|O_NONBLOCK); } if ((f = fcntl(i->thread_fd, F_GETFL)) >= 0) fcntl(i->thread_fd, F_SETFL, f|O_NONBLOCK); fcntl(i->app_fd, F_SETFD, FD_CLOEXEC); fcntl(i->thread_fd, F_SETFD, FD_CLOEXEC); pa_threaded_mainloop_lock(i->mainloop); api = pa_threaded_mainloop_get_api(i->mainloop); switch (flags & O_ACCMODE) { case O_RDONLY: i->io_flags = PA_IO_EVENT_OUTPUT; shutdown(i->thread_fd, SHUT_RD); shutdown(i->app_fd, SHUT_WR); break; case O_WRONLY: i->io_flags = PA_IO_EVENT_INPUT; shutdown(i->thread_fd, SHUT_WR); shutdown(i->app_fd, SHUT_RD); break; case O_RDWR: i->io_flags = PA_IO_EVENT_INPUT | PA_IO_EVENT_OUTPUT; break; default: return -1; } if (!(i->io_event = api->io_new(api, i->thread_fd, i->io_flags, io_event_cb, i))) goto fail; pa_threaded_mainloop_unlock(i->mainloop); debug(DEBUG_LEVEL_NORMAL, __FILE__": dsp_open() succeeded, fd=%i\n", i->app_fd); fd_info_add_to_list(i); ret = i->app_fd; fd_info_unref(i); return ret; fail: pa_threaded_mainloop_unlock(i->mainloop); if (i) fd_info_unref(i); *_errno = EIO; debug(DEBUG_LEVEL_NORMAL, __FILE__": dsp_open() failed\n"); return -1; } static void sink_info_cb(pa_context *context, const pa_sink_info *si, int eol, void *userdata) { fd_info *i = userdata; if (eol < 0) { i->operation_success = 0; pa_threaded_mainloop_signal(i->mainloop, 0); return; } if (eol) return; if (!pa_cvolume_equal(&i->sink_volume, &si->volume)) i->volume_modify_count++; i->sink_volume = si->volume; i->sink_index = si->index; i->operation_success = 1; pa_threaded_mainloop_signal(i->mainloop, 0); } static void source_info_cb(pa_context *context, const pa_source_info *si, int eol, void *userdata) { fd_info *i = userdata; if (eol < 0) { i->operation_success = 0; pa_threaded_mainloop_signal(i->mainloop, 0); return; } if (eol) return; if (!pa_cvolume_equal(&i->source_volume, &si->volume)) i->volume_modify_count++; i->source_volume = si->volume; i->source_index = si->index; i->operation_success = 1; pa_threaded_mainloop_signal(i->mainloop, 0); } static void subscribe_cb(pa_context *context, pa_subscription_event_type_t t, uint32_t idx, void *userdata) { fd_info *i = userdata; pa_operation *o = NULL; if (i->sink_index != idx) return; if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) != PA_SUBSCRIPTION_EVENT_CHANGE) return; if (!(o = pa_context_get_sink_info_by_index(i->context, i->sink_index, sink_info_cb, i))) { debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get sink info: %s", pa_strerror(pa_context_errno(i->context))); return; } pa_operation_unref(o); } static int mixer_open(int flags, int *_errno) { fd_info *i; pa_operation *o = NULL; int ret; debug(DEBUG_LEVEL_NORMAL, __FILE__": mixer_open()\n"); if (!(i = fd_info_new(FD_INFO_MIXER, _errno))) return -1; pa_threaded_mainloop_lock(i->mainloop); pa_context_set_subscribe_callback(i->context, subscribe_cb, i); if (!(o = pa_context_subscribe(i->context, PA_SUBSCRIPTION_MASK_SINK | PA_SUBSCRIPTION_MASK_SOURCE, context_success_cb, i))) { debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to subscribe to events: %s", pa_strerror(pa_context_errno(i->context))); *_errno = EIO; goto fail; } i->operation_success = 0; while (pa_operation_get_state(o) != PA_OPERATION_DONE) { pa_threaded_mainloop_wait(i->mainloop); CONTEXT_CHECK_DEAD_GOTO(i, fail); } pa_operation_unref(o); o = NULL; if (!i->operation_success) { debug(DEBUG_LEVEL_NORMAL, __FILE__":Failed to subscribe to events: %s", pa_strerror(pa_context_errno(i->context))); *_errno = EIO; goto fail; } /* Get sink info */ if (!(o = pa_context_get_sink_info_by_name(i->context, NULL, sink_info_cb, i))) { debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get sink info: %s", pa_strerror(pa_context_errno(i->context))); *_errno = EIO; goto fail; } i->operation_success = 0; while (pa_operation_get_state(o) != PA_OPERATION_DONE) { pa_threaded_mainloop_wait(i->mainloop); CONTEXT_CHECK_DEAD_GOTO(i, fail); } pa_operation_unref(o); o = NULL; if (!i->operation_success) { debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get sink info: %s", pa_strerror(pa_context_errno(i->context))); *_errno = EIO; goto fail; } /* Get source info */ if (!(o = pa_context_get_source_info_by_name(i->context, NULL, source_info_cb, i))) { debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get source info: %s", pa_strerror(pa_context_errno(i->context))); *_errno = EIO; goto fail; } i->operation_success = 0; while (pa_operation_get_state(o) != PA_OPERATION_DONE) { pa_threaded_mainloop_wait(i->mainloop); CONTEXT_CHECK_DEAD_GOTO(i, fail); } pa_operation_unref(o); o = NULL; if (!i->operation_success) { debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get source info: %s", pa_strerror(pa_context_errno(i->context))); *_errno = EIO; goto fail; } pa_threaded_mainloop_unlock(i->mainloop); debug(DEBUG_LEVEL_NORMAL, __FILE__": mixer_open() succeeded, fd=%i\n", i->app_fd); fd_info_add_to_list(i); ret = i->app_fd; fd_info_unref(i); return ret; fail: if (o) pa_operation_unref(o); pa_threaded_mainloop_unlock(i->mainloop); if (i) fd_info_unref(i); *_errno = EIO; debug(DEBUG_LEVEL_NORMAL, __FILE__": mixer_open() failed\n"); return -1; } static int sndstat_open(int flags, int *_errno) { static const char sndstat[] = "Sound Driver:3.8.1a-980706 (PulseAudio Virtual OSS)\n" "Kernel: POSIX\n" "Config options: 0\n" "\n" "Installed drivers:\n" "Type 255: PulseAudio Virtual OSS\n" "\n" "Card config:\n" "PulseAudio Virtual OSS\n" "\n" "Audio devices:\n" "0: PulseAudio Virtual OSS\n" "\n" "Synth devices: NOT ENABLED IN CONFIG\n" "\n" "Midi devices:\n" "\n" "Timers:\n" "\n" "Mixers:\n" "0: PulseAudio Virtual OSS\n"; char *fn; mode_t u; int fd = -1; int e; fn = pa_sprintf_malloc("%s" PA_PATH_SEP "padsp-sndstat-XXXXXX", pa_get_temp_dir()); debug(DEBUG_LEVEL_NORMAL, __FILE__": sndstat_open()\n"); if (flags != O_RDONLY #ifdef O_LARGEFILE && flags != (O_RDONLY|O_LARGEFILE) #endif ) { *_errno = EACCES; debug(DEBUG_LEVEL_NORMAL, __FILE__": bad access!\n"); goto fail; } u = umask(0077); fd = mkstemp(fn); e = errno; umask(u); if (fd < 0) { *_errno = e; debug(DEBUG_LEVEL_NORMAL, __FILE__": mkstemp() failed: %s\n", strerror(errno)); goto fail; } unlink(fn); pa_xfree(fn); fn = NULL; if (write(fd, sndstat, sizeof(sndstat) -1) != sizeof(sndstat)-1) { *_errno = errno; debug(DEBUG_LEVEL_NORMAL, __FILE__": write() failed: %s\n", strerror(errno)); goto fail; } if (lseek(fd, SEEK_SET, 0) < 0) { *_errno = errno; debug(DEBUG_LEVEL_NORMAL, __FILE__": lseek() failed: %s\n", strerror(errno)); goto fail; } return fd; fail: pa_xfree(fn); if (fd >= 0) close(fd); return -1; } static int real_open(const char *filename, int flags, mode_t mode) { int r, _errno = 0; debug(DEBUG_LEVEL_VERBOSE, __FILE__": open(%s)\n", filename?filename:"NULL"); if (!function_enter()) { LOAD_OPEN_FUNC(); return _open(filename, flags, mode); } if (filename && dsp_cloak_enable() && (pa_streq(filename, "/dev/dsp") || pa_streq(filename, "/dev/adsp") || pa_streq(filename, "/dev/audio"))) r = dsp_open(flags, &_errno); else if (filename && mixer_cloak_enable() && pa_streq(filename, "/dev/mixer")) r = mixer_open(flags, &_errno); else if (filename && sndstat_cloak_enable() && pa_streq(filename, "/dev/sndstat")) r = sndstat_open(flags, &_errno); else { function_exit(); LOAD_OPEN_FUNC(); return _open(filename, flags, mode); } function_exit(); if (_errno) errno = _errno; return r; } int open(const char *filename, int flags, ...) { va_list args; mode_t mode = 0; if (flags & O_CREAT) { va_start(args, flags); if (sizeof(mode_t) < sizeof(int)) mode = (mode_t) va_arg(args, int); else mode = va_arg(args, mode_t); va_end(args); } return real_open(filename, flags, mode); } static pa_bool_t is_audio_device_node(const char *path) { return pa_streq(path, "/dev/dsp") || pa_streq(path, "/dev/adsp") || pa_streq(path, "/dev/audio") || pa_streq(path, "/dev/sndstat") || pa_streq(path, "/dev/mixer"); } int __open_2(const char *filename, int flags) { debug(DEBUG_LEVEL_VERBOSE, __FILE__": __open_2(%s)\n", filename?filename:"NULL"); if ((flags & O_CREAT) || !filename || !is_audio_device_node(filename)) { LOAD___OPEN_2_FUNC(); return ___open_2(filename, flags); } return real_open(filename, flags, 0); } static int mixer_ioctl(fd_info *i, unsigned long request, void*argp, int *_errno) { int ret = -1; switch (request) { case SOUND_MIXER_READ_DEVMASK : debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_DEVMASK\n"); *(int*) argp = SOUND_MASK_PCM | SOUND_MASK_IGAIN; break; case SOUND_MIXER_READ_RECMASK : debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_RECMASK\n"); *(int*) argp = SOUND_MASK_IGAIN; break; case SOUND_MIXER_READ_STEREODEVS: debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_STEREODEVS\n"); pa_threaded_mainloop_lock(i->mainloop); *(int*) argp = 0; if (i->sink_volume.channels > 1) *(int*) argp |= SOUND_MASK_PCM; if (i->source_volume.channels > 1) *(int*) argp |= SOUND_MASK_IGAIN; pa_threaded_mainloop_unlock(i->mainloop); break; case SOUND_MIXER_READ_RECSRC: debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_RECSRC\n"); *(int*) argp = SOUND_MASK_IGAIN; break; case SOUND_MIXER_WRITE_RECSRC: debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_WRITE_RECSRC\n"); break; case SOUND_MIXER_READ_CAPS: debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_CAPS\n"); *(int*) argp = 0; break; case SOUND_MIXER_READ_PCM: case SOUND_MIXER_READ_IGAIN: { pa_cvolume *v; if (request == SOUND_MIXER_READ_PCM) debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_PCM\n"); else debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_IGAIN\n"); pa_threaded_mainloop_lock(i->mainloop); if (request == SOUND_MIXER_READ_PCM) v = &i->sink_volume; else v = &i->source_volume; *(int*) argp = ((v->values[0]*100/PA_VOLUME_NORM)) | ((v->values[v->channels > 1 ? 1 : 0]*100/PA_VOLUME_NORM) << 8); pa_threaded_mainloop_unlock(i->mainloop); break; } case SOUND_MIXER_WRITE_PCM: case SOUND_MIXER_WRITE_IGAIN: { pa_cvolume v, *pv; if (request == SOUND_MIXER_WRITE_PCM) debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_WRITE_PCM\n"); else debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_WRITE_IGAIN\n"); pa_threaded_mainloop_lock(i->mainloop); if (request == SOUND_MIXER_WRITE_PCM) { v = i->sink_volume; pv = &i->sink_volume; } else { v = i->source_volume; pv = &i->source_volume; } pv->values[0] = ((*(int*) argp & 0xFF)*PA_VOLUME_NORM)/100; pv->values[1] = ((*(int*) argp >> 8)*PA_VOLUME_NORM)/100; if (!pa_cvolume_equal(pv, &v)) { pa_operation *o; if (request == SOUND_MIXER_WRITE_PCM) o = pa_context_set_sink_volume_by_index(i->context, i->sink_index, pv, context_success_cb, i); else o = pa_context_set_source_volume_by_index(i->context, i->source_index, pv, context_success_cb, i); if (!o) debug(DEBUG_LEVEL_NORMAL, __FILE__":Failed set volume: %s", pa_strerror(pa_context_errno(i->context))); else { i->operation_success = 0; while (pa_operation_get_state(o) != PA_OPERATION_DONE) { CONTEXT_CHECK_DEAD_GOTO(i, exit_loop); pa_threaded_mainloop_wait(i->mainloop); } exit_loop: if (!i->operation_success) debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to set volume: %s\n", pa_strerror(pa_context_errno(i->context))); pa_operation_unref(o); } /* We don't wait for completion here */ i->volume_modify_count++; } pa_threaded_mainloop_unlock(i->mainloop); break; } case SOUND_MIXER_INFO: { mixer_info *mi = argp; debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_INFO\n"); memset(mi, 0, sizeof(mixer_info)); strncpy(mi->id, "PULSEAUDIO", sizeof(mi->id)); strncpy(mi->name, "PulseAudio Virtual OSS", sizeof(mi->name)); pa_threaded_mainloop_lock(i->mainloop); mi->modify_counter = i->volume_modify_count; pa_threaded_mainloop_unlock(i->mainloop); break; } default: debug(DEBUG_LEVEL_NORMAL, __FILE__": unknown ioctl 0x%08lx\n", request); *_errno = EINVAL; goto fail; } ret = 0; fail: return ret; } static int map_format(int *fmt, pa_sample_spec *ss) { switch (*fmt) { case AFMT_MU_LAW: ss->format = PA_SAMPLE_ULAW; break; case AFMT_A_LAW: ss->format = PA_SAMPLE_ALAW; break; case AFMT_S8: *fmt = AFMT_U8; /* fall through */ case AFMT_U8: ss->format = PA_SAMPLE_U8; break; case AFMT_U16_BE: *fmt = AFMT_S16_BE; /* fall through */ case AFMT_S16_BE: ss->format = PA_SAMPLE_S16BE; break; case AFMT_U16_LE: *fmt = AFMT_S16_LE; /* fall through */ case AFMT_S16_LE: ss->format = PA_SAMPLE_S16LE; break; default: ss->format = PA_SAMPLE_S16NE; *fmt = AFMT_S16_NE; break; } return 0; } static int map_format_back(pa_sample_format_t format) { switch (format) { case PA_SAMPLE_S16LE: return AFMT_S16_LE; case PA_SAMPLE_S16BE: return AFMT_S16_BE; case PA_SAMPLE_ULAW: return AFMT_MU_LAW; case PA_SAMPLE_ALAW: return AFMT_A_LAW; case PA_SAMPLE_U8: return AFMT_U8; default: abort(); } } static int dsp_flush_fd(int fd) { #ifdef SIOCINQ int l; if (ioctl(fd, SIOCINQ, &l) < 0) { debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ: %s\n", strerror(errno)); return -1; } while (l > 0) { char buf[1024]; size_t k; k = (size_t) l > sizeof(buf) ? sizeof(buf) : (size_t) l; if (read(fd, buf, k) < 0) debug(DEBUG_LEVEL_NORMAL, __FILE__": read(): %s\n", strerror(errno)); l -= k; } return 0; #else # warning "Your platform does not support SIOCINQ, something might not work as intended." return 0; #endif } static int dsp_flush_socket(fd_info *i) { int res = 0; if ((i->thread_fd < 0) && (i->app_fd < 0)) return -1; if (i->thread_fd >= 0) res = dsp_flush_fd(i->thread_fd); if (res < 0) return res; if (i->app_fd >= 0) res = dsp_flush_fd(i->app_fd); if (res < 0) return res; return 0; } static int dsp_empty_socket(fd_info *i) { #ifdef SIOCINQ int ret = -1; /* Empty the socket */ for (;;) { int l; if (i->thread_fd < 0) break; if (ioctl(i->thread_fd, SIOCINQ, &l) < 0) { debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ: %s\n", strerror(errno)); break; } if (!l) { ret = 0; break; } pa_threaded_mainloop_wait(i->mainloop); } return ret; #else # warning "Your platform does not support SIOCINQ, something might not work as intended." return 0; #endif } static int dsp_drain(fd_info *i) { pa_operation *o = NULL; int r = -1; if (!i->mainloop) return 0; debug(DEBUG_LEVEL_NORMAL, __FILE__": Draining.\n"); pa_threaded_mainloop_lock(i->mainloop); if (dsp_empty_socket(i) < 0) goto fail; if (!i->play_stream) goto fail; debug(DEBUG_LEVEL_NORMAL, __FILE__": Really draining.\n"); if (!(o = pa_stream_drain(i->play_stream, stream_success_cb, i))) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } i->operation_success = 0; while (pa_operation_get_state(o) != PA_OPERATION_DONE) { PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, fail); pa_threaded_mainloop_wait(i->mainloop); } if (!i->operation_success) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_drain() 2: %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } r = 0; fail: if (o) pa_operation_unref(o); pa_threaded_mainloop_unlock(i->mainloop); return r; } static int dsp_trigger(fd_info *i) { pa_operation *o = NULL; int r = -1; if (!i->play_stream) return 0; pa_threaded_mainloop_lock(i->mainloop); if (dsp_empty_socket(i) < 0) goto fail; debug(DEBUG_LEVEL_NORMAL, __FILE__": Triggering.\n"); if (!(o = pa_stream_trigger(i->play_stream, stream_success_cb, i))) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_trigger(): %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } i->operation_success = 0; while (!pa_operation_get_state(o) != PA_OPERATION_DONE) { PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, fail); pa_threaded_mainloop_wait(i->mainloop); } if (!i->operation_success) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_trigger(): %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } r = 0; fail: if (o) pa_operation_unref(o); pa_threaded_mainloop_unlock(i->mainloop); return r; } static int dsp_cork(fd_info *i, pa_stream *s, int b) { pa_operation *o = NULL; int r = -1; pa_threaded_mainloop_lock(i->mainloop); if (!(o = pa_stream_cork(s, b, stream_success_cb, i))) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_cork(): %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } i->operation_success = 0; while (!pa_operation_get_state(o) != PA_OPERATION_DONE) { if (s == i->play_stream) PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, fail); else if (s == i->rec_stream) RECORD_STREAM_CHECK_DEAD_GOTO(i, fail); pa_threaded_mainloop_wait(i->mainloop); } if (!i->operation_success) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_cork(): %s\n", pa_strerror(pa_context_errno(i->context))); goto fail; } r = 0; fail: if (o) pa_operation_unref(o); pa_threaded_mainloop_unlock(i->mainloop); return r; } static int dsp_ioctl(fd_info *i, unsigned long request, void*argp, int *_errno) { int ret = -1; if (i->thread_fd == -1) { /* * We've encountered some fatal error and are just waiting * for a close. */ debug(DEBUG_LEVEL_NORMAL, __FILE__": got ioctl 0x%08lx in fatal error state\n", request); *_errno = EIO; return -1; } switch (request) { case SNDCTL_DSP_SETFMT: { debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETFMT: %i\n", *(int*) argp); pa_threaded_mainloop_lock(i->mainloop); if (*(int*) argp == AFMT_QUERY) *(int*) argp = map_format_back(i->sample_spec.format); else { map_format((int*) argp, &i->sample_spec); free_streams(i); } pa_threaded_mainloop_unlock(i->mainloop); break; } case SNDCTL_DSP_SPEED: { pa_sample_spec ss; int valid; char t[256]; debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SPEED: %i\n", *(int*) argp); pa_threaded_mainloop_lock(i->mainloop); ss = i->sample_spec; ss.rate = *(int*) argp; if ((valid = pa_sample_spec_valid(&ss))) { i->sample_spec = ss; free_streams(i); } debug(DEBUG_LEVEL_NORMAL, __FILE__": ss: %s\n", pa_sample_spec_snprint(t, sizeof(t), &i->sample_spec)); pa_threaded_mainloop_unlock(i->mainloop); if (!valid) { *_errno = EINVAL; goto fail; } break; } case SNDCTL_DSP_STEREO: debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_STEREO: %i\n", *(int*) argp); pa_threaded_mainloop_lock(i->mainloop); i->sample_spec.channels = *(int*) argp ? 2 : 1; free_streams(i); pa_threaded_mainloop_unlock(i->mainloop); return 0; case SNDCTL_DSP_CHANNELS: { pa_sample_spec ss; int valid; debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_CHANNELS: %i\n", *(int*) argp); pa_threaded_mainloop_lock(i->mainloop); ss = i->sample_spec; ss.channels = *(int*) argp; if ((valid = pa_sample_spec_valid(&ss))) { i->sample_spec = ss; free_streams(i); } pa_threaded_mainloop_unlock(i->mainloop); if (!valid) { *_errno = EINVAL; goto fail; } break; } case SNDCTL_DSP_GETBLKSIZE: debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETBLKSIZE\n"); pa_threaded_mainloop_lock(i->mainloop); fix_metrics(i); *(int*) argp = i->fragment_size; pa_threaded_mainloop_unlock(i->mainloop); break; case SNDCTL_DSP_SETFRAGMENT: debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETFRAGMENT: 0x%08x\n", *(int*) argp); pa_threaded_mainloop_lock(i->mainloop); i->fragment_size = 1 << ((*(int*) argp) & 31); i->n_fragments = (*(int*) argp) >> 16; /* 0x7FFF means that we can set whatever we like */ if (i->n_fragments == 0x7FFF) i->n_fragments = 12; free_streams(i); pa_threaded_mainloop_unlock(i->mainloop); break; case SNDCTL_DSP_GETCAPS: debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_CAPS\n"); *(int*) argp = DSP_CAP_DUPLEX | DSP_CAP_TRIGGER #ifdef DSP_CAP_MULTI | DSP_CAP_MULTI #endif ; break; case SNDCTL_DSP_GETODELAY: { int l; debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETODELAY\n"); pa_threaded_mainloop_lock(i->mainloop); *(int*) argp = 0; for (;;) { pa_usec_t usec; PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, exit_loop); if (pa_stream_get_latency(i->play_stream, &usec, NULL) >= 0) { *(int*) argp = pa_usec_to_bytes(usec, &i->sample_spec); break; } if (pa_context_errno(i->context) != PA_ERR_NODATA) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_get_latency(): %s\n", pa_strerror(pa_context_errno(i->context))); break; } pa_threaded_mainloop_wait(i->mainloop); } exit_loop: #ifdef SIOCINQ if (ioctl(i->thread_fd, SIOCINQ, &l) < 0) debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ failed: %s\n", strerror(errno)); else *(int*) argp += l; #else # warning "Your platform does not support SIOCINQ, something might not work as intended." #endif pa_threaded_mainloop_unlock(i->mainloop); debug(DEBUG_LEVEL_NORMAL, __FILE__": ODELAY: %i\n", *(int*) argp); break; } case SNDCTL_DSP_RESET: { debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_RESET\n"); pa_threaded_mainloop_lock(i->mainloop); free_streams(i); dsp_flush_socket(i); i->optr_n_blocks = 0; pa_threaded_mainloop_unlock(i->mainloop); break; } case SNDCTL_DSP_GETFMTS: { debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETFMTS\n"); *(int*) argp = AFMT_MU_LAW|AFMT_A_LAW|AFMT_U8|AFMT_S16_LE|AFMT_S16_BE; break; } case SNDCTL_DSP_POST: debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_POST\n"); if (dsp_trigger(i) < 0) *_errno = EIO; break; case SNDCTL_DSP_GETTRIGGER: debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETTRIGGER\n"); *(int*) argp = 0; if (!i->play_precork) *(int*) argp |= PCM_ENABLE_OUTPUT; if (!i->rec_precork) *(int*) argp |= PCM_ENABLE_INPUT; break; case SNDCTL_DSP_SETTRIGGER: debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETTRIGGER: 0x%08x\n", *(int*) argp); if (!i->io_event) { *_errno = EIO; break; } i->play_precork = !((*(int*) argp) & PCM_ENABLE_OUTPUT); if (i->play_stream) { if (dsp_cork(i, i->play_stream, !((*(int*) argp) & PCM_ENABLE_OUTPUT)) < 0) *_errno = EIO; if (dsp_trigger(i) < 0) *_errno = EIO; } i->rec_precork = !((*(int*) argp) & PCM_ENABLE_INPUT); if (i->rec_stream) { if (dsp_cork(i, i->rec_stream, !((*(int*) argp) & PCM_ENABLE_INPUT)) < 0) *_errno = EIO; } break; case SNDCTL_DSP_SYNC: debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SYNC\n"); if (dsp_drain(i) < 0) *_errno = EIO; break; case SNDCTL_DSP_GETOSPACE: case SNDCTL_DSP_GETISPACE: { audio_buf_info *bi = (audio_buf_info*) argp; int l = 0; size_t k = 0; if (request == SNDCTL_DSP_GETOSPACE) debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETOSPACE\n"); else debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETISPACE\n"); pa_threaded_mainloop_lock(i->mainloop); fix_metrics(i); if (request == SNDCTL_DSP_GETOSPACE) { if (i->play_stream) { if ((k = pa_stream_writable_size(i->play_stream)) == (size_t) -1) debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_writable_size(): %s\n", pa_strerror(pa_context_errno(i->context))); } else k = i->fragment_size * i->n_fragments; #ifdef SIOCINQ if (ioctl(i->thread_fd, SIOCINQ, &l) < 0) { debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ failed: %s\n", strerror(errno)); l = 0; } #else # warning "Your platform does not dsp_flush_fd, something might not work as intended." #endif bi->bytes = k > (size_t) l ? k - l : 0; } else { if (i->rec_stream) { if ((k = pa_stream_readable_size(i->rec_stream)) == (size_t) -1) debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_readable_size(): %s\n", pa_strerror(pa_context_errno(i->context))); } else k = 0; #ifdef SIOCINQ if (ioctl(i->app_fd, SIOCINQ, &l) < 0) { debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ failed: %s\n", strerror(errno)); l = 0; } #else # warning "Your platform does not dsp_flush_fd, something might not work as intended." #endif bi->bytes = k + l; } bi->fragsize = i->fragment_size; bi->fragstotal = i->n_fragments; bi->fragments = bi->bytes / bi->fragsize; pa_threaded_mainloop_unlock(i->mainloop); debug(DEBUG_LEVEL_NORMAL, __FILE__": fragsize=%i, fragstotal=%i, bytes=%i, fragments=%i\n", bi->fragsize, bi->fragstotal, bi->bytes, bi->fragments); break; } case SOUND_PCM_READ_RATE: debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_RATE\n"); pa_threaded_mainloop_lock(i->mainloop); *(int*) argp = i->sample_spec.rate; pa_threaded_mainloop_unlock(i->mainloop); break; case SOUND_PCM_READ_CHANNELS: debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_CHANNELS\n"); pa_threaded_mainloop_lock(i->mainloop); *(int*) argp = i->sample_spec.channels; pa_threaded_mainloop_unlock(i->mainloop); break; case SOUND_PCM_READ_BITS: debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_BITS\n"); pa_threaded_mainloop_lock(i->mainloop); *(int*) argp = pa_sample_size(&i->sample_spec)*8; pa_threaded_mainloop_unlock(i->mainloop); break; case SNDCTL_DSP_GETOPTR: { count_info *info; debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETOPTR\n"); info = (count_info*) argp; memset(info, 0, sizeof(*info)); pa_threaded_mainloop_lock(i->mainloop); for (;;) { pa_usec_t usec; PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, exit_loop2); if (pa_stream_get_time(i->play_stream, &usec) >= 0) { size_t k = pa_usec_to_bytes(usec, &i->sample_spec); int m; info->bytes = (int) k; m = k / i->fragment_size; info->blocks = m - i->optr_n_blocks; i->optr_n_blocks = m; break; } if (pa_context_errno(i->context) != PA_ERR_NODATA) { debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_get_latency(): %s\n", pa_strerror(pa_context_errno(i->context))); break; } pa_threaded_mainloop_wait(i->mainloop); } exit_loop2: pa_threaded_mainloop_unlock(i->mainloop); debug(DEBUG_LEVEL_NORMAL, __FILE__": GETOPTR bytes=%i, blocks=%i, ptr=%i\n", info->bytes, info->blocks, info->ptr); break; } case SNDCTL_DSP_GETIPTR: debug(DEBUG_LEVEL_NORMAL, __FILE__": invalid ioctl SNDCTL_DSP_GETIPTR\n"); goto inval; case SNDCTL_DSP_SETDUPLEX: debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETDUPLEX\n"); /* this is a no-op */ break; default: /* Mixer ioctls are valid on /dev/dsp as well */ return mixer_ioctl(i, request, argp, _errno); inval: *_errno = EINVAL; goto fail; } ret = 0; fail: return ret; } #ifdef sun int ioctl(int fd, int request, ...) { #else int ioctl(int fd, unsigned long request, ...) { #endif fd_info *i; va_list args; void *argp; int r, _errno = 0; debug(DEBUG_LEVEL_VERBOSE, __FILE__": ioctl()\n"); va_start(args, request); argp = va_arg(args, void *); va_end(args); if (!function_enter()) { LOAD_IOCTL_FUNC(); return _ioctl(fd, request, argp); } if (!(i = fd_info_find(fd))) { function_exit(); LOAD_IOCTL_FUNC(); return _ioctl(fd, request, argp); } if (i->type == FD_INFO_MIXER) r = mixer_ioctl(i, request, argp, &_errno); else r = dsp_ioctl(i, request, argp, &_errno); fd_info_unref(i); if (_errno) errno = _errno; function_exit(); return r; } int close(int fd) { fd_info *i; debug(DEBUG_LEVEL_VERBOSE, __FILE__": close()\n"); if (!function_enter()) { LOAD_CLOSE_FUNC(); return _close(fd); } if (!(i = fd_info_find(fd))) { function_exit(); LOAD_CLOSE_FUNC(); return _close(fd); } fd_info_remove_from_list(i); fd_info_unref(i); function_exit(); return 0; } int access(const char *pathname, int mode) { debug(DEBUG_LEVEL_VERBOSE, __FILE__": access(%s)\n", pathname?pathname:"NULL"); if (!pathname || !is_audio_device_node(pathname)) { LOAD_ACCESS_FUNC(); return _access(pathname, mode); } if (mode & X_OK) { debug(DEBUG_LEVEL_NORMAL, __FILE__": access(%s, %x) = EACCESS\n", pathname, mode); errno = EACCES; return -1; } debug(DEBUG_LEVEL_NORMAL, __FILE__": access(%s, %x) = OK\n", pathname, mode); return 0; } int stat(const char *pathname, struct stat *buf) { #ifdef HAVE_OPEN64 struct stat64 parent; #else struct stat parent; #endif int ret; if (!pathname || !buf || !is_audio_device_node(pathname)) { debug(DEBUG_LEVEL_VERBOSE, __FILE__": stat(%s)\n", pathname?pathname:"NULL"); LOAD_STAT_FUNC(); return _stat(pathname, buf); } debug(DEBUG_LEVEL_NORMAL, __FILE__": stat(%s)\n", pathname); #ifdef _STAT_VER #ifdef HAVE_OPEN64 ret = __xstat64(_STAT_VER, "/dev", &parent); #else ret = __xstat(_STAT_VER, "/dev", &parent); #endif #else #ifdef HAVE_OPEN64 ret = stat64("/dev", &parent); #else ret = stat("/dev", &parent); #endif #endif if (ret) { debug(DEBUG_LEVEL_NORMAL, __FILE__": unable to stat \"/dev\"\n"); return -1; } buf->st_dev = parent.st_dev; buf->st_ino = 0xDEADBEEF; /* FIXME: Can we do this in a safe way? */ buf->st_mode = S_IFCHR | S_IRUSR | S_IWUSR; buf->st_nlink = 1; buf->st_uid = getuid(); buf->st_gid = getgid(); buf->st_rdev = 0x0E03; /* FIXME: Linux specific */ buf->st_size = 0; buf->st_atime = 1181557705; buf->st_mtime = 1181557705; buf->st_ctime = 1181557705; buf->st_blksize = 1; buf->st_blocks = 0; return 0; } #ifdef HAVE_OPEN64 int stat64(const char *pathname, struct stat64 *buf) { struct stat oldbuf; int ret; debug(DEBUG_LEVEL_VERBOSE, __FILE__": stat64(%s)\n", pathname?pathname:"NULL"); if (!pathname || !buf || !is_audio_device_node(pathname)) { LOAD_STAT64_FUNC(); return _stat64(pathname, buf); } ret = stat(pathname, &oldbuf); if (ret) return ret; buf->st_dev = oldbuf.st_dev; buf->st_ino = oldbuf.st_ino; buf->st_mode = oldbuf.st_mode; buf->st_nlink = oldbuf.st_nlink; buf->st_uid = oldbuf.st_uid; buf->st_gid = oldbuf.st_gid; buf->st_rdev = oldbuf.st_rdev; buf->st_size = oldbuf.st_size; buf->st_atime = oldbuf.st_atime; buf->st_mtime = oldbuf.st_mtime; buf->st_ctime = oldbuf.st_ctime; buf->st_blksize = oldbuf.st_blksize; buf->st_blocks = oldbuf.st_blocks; return 0; } int open64(const char *filename, int flags, ...) { va_list args; mode_t mode = 0; debug(DEBUG_LEVEL_VERBOSE, __FILE__": open64(%s)\n", filename?filename:"NULL"); if (flags & O_CREAT) { va_start(args, flags); if (sizeof(mode_t) < sizeof(int)) mode = va_arg(args, int); else mode = va_arg(args, mode_t); va_end(args); } if (!filename || !is_audio_device_node(filename)) { LOAD_OPEN64_FUNC(); return _open64(filename, flags, mode); } return real_open(filename, flags, mode); } int __open64_2(const char *filename, int flags) { debug(DEBUG_LEVEL_VERBOSE, __FILE__": __open64_2(%s)\n", filename?filename:"NULL"); if ((flags & O_CREAT) || !filename || !is_audio_device_node(filename)) { LOAD___OPEN64_2_FUNC(); return ___open64_2(filename, flags); } return real_open(filename, flags, 0); } #endif #ifdef _STAT_VER int __xstat(int ver, const char *pathname, struct stat *buf) { debug(DEBUG_LEVEL_VERBOSE, __FILE__": __xstat(%s)\n", pathname?pathname:"NULL"); if (!pathname || !buf || !is_audio_device_node(pathname)) { LOAD_XSTAT_FUNC(); return ___xstat(ver, pathname, buf); } if (ver != _STAT_VER) { errno = EINVAL; return -1; } return stat(pathname, buf); } #ifdef HAVE_OPEN64 int __xstat64(int ver, const char *pathname, struct stat64 *buf) { debug(DEBUG_LEVEL_VERBOSE, __FILE__": __xstat64(%s)\n", pathname?pathname:"NULL"); if (!pathname || !buf || !is_audio_device_node(pathname)) { LOAD_XSTAT64_FUNC(); return ___xstat64(ver, pathname, buf); } if (ver != _STAT_VER) { errno = EINVAL; return -1; } return stat64(pathname, buf); } #endif #endif FILE* fopen(const char *filename, const char *mode) { FILE *f = NULL; int fd; mode_t m; debug(DEBUG_LEVEL_VERBOSE, __FILE__": fopen(%s)\n", filename?filename:"NULL"); if (!filename || !mode || !is_audio_device_node(filename)) { LOAD_FOPEN_FUNC(); return _fopen(filename, mode); } switch (mode[0]) { case 'r': m = O_RDONLY; break; case 'w': case 'a': m = O_WRONLY; break; default: errno = EINVAL; return NULL; } if ((((mode[1] == 'b') || (mode[1] == 't')) && (mode[2] == '+')) || (mode[1] == '+')) m = O_RDWR; if ((fd = real_open(filename, m, 0)) < 0) return NULL; if (!(f = fdopen(fd, mode))) { close(fd); return NULL; } return f; } #ifdef HAVE_OPEN64 FILE *fopen64(const char *filename, const char *mode) { debug(DEBUG_LEVEL_VERBOSE, __FILE__": fopen64(%s)\n", filename?filename:"NULL"); if (!filename || !mode || !is_audio_device_node(filename)) { LOAD_FOPEN64_FUNC(); return _fopen64(filename, mode); } return fopen(filename, mode); } #endif int fclose(FILE *f) { fd_info *i; debug(DEBUG_LEVEL_VERBOSE, __FILE__": fclose()\n"); if (!function_enter()) { LOAD_FCLOSE_FUNC(); return _fclose(f); } if (!(i = fd_info_find(fileno(f)))) { function_exit(); LOAD_FCLOSE_FUNC(); return _fclose(f); } fd_info_remove_from_list(i); /* Dirty trick to avoid that the fd is not freed twice, once by us * and once by the real fclose() */ i->app_fd = -1; fd_info_unref(i); function_exit(); LOAD_FCLOSE_FUNC(); return _fclose(f); }