diff options
Diffstat (limited to 'src/utils/pacmd.c')
| -rw-r--r-- | src/utils/pacmd.c | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/src/utils/pacmd.c b/src/utils/pacmd.c new file mode 100644 index 0000000..616573c --- /dev/null +++ b/src/utils/pacmd.c @@ -0,0 +1,359 @@ +/*** + This file is part of PulseAudio. + + Copyright 2004-2006 Lennart Poettering + + 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, see <http://www.gnu.org/licenses/>. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <signal.h> +#include <sys/socket.h> +#include <unistd.h> +#include <errno.h> +#include <string.h> +#include <sys/un.h> +#include <getopt.h> +#include <locale.h> + +#include <pulse/util.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/i18n.h> +#include <pulsecore/poll.h> +#include <pulsecore/macro.h> +#include <pulsecore/core-util.h> +#include <pulsecore/log.h> +#include <pulsecore/pid.h> + +static void help(const char *argv0) { + printf("%s %s\n", argv0, "exit"); + printf("%s %s\n", argv0, "help"); + printf("%s %s\n", argv0, "list-(modules|sinks|sources|clients|cards|samples)"); + printf("%s %s\n", argv0, "list-(sink-inputs|source-outputs)"); + printf("%s %s\n", argv0, "stat"); + printf("%s %s\n", argv0, "info"); + printf("%s %s %s\n", argv0, "load-module", _("NAME [ARGS ...]")); + printf("%s %s %s\n", argv0, "unload-module", _("NAME|#N")); + printf("%s %s %s\n", argv0, "describe-module", _("NAME")); + printf("%s %s %s\n", argv0, "set-(sink|source)-volume", _("NAME|#N VOLUME")); + printf("%s %s %s\n", argv0, "set-(sink-input|source-output)-volume", _("#N VOLUME")); + printf("%s %s %s\n", argv0, "set-(sink|source)-mute", _("NAME|#N 1|0")); + printf("%s %s %s\n", argv0, "set-(sink-input|source-output)-mute", _("#N 1|0")); + printf("%s %s %s\n", argv0, "update-(sink|source)-proplist", _("NAME|#N KEY=VALUE")); + printf("%s %s %s\n", argv0, "update-(sink-input|source-output)-proplist", _("#N KEY=VALUE")); + printf("%s %s %s\n", argv0, "set-default-(sink|source)", _("NAME|#N")); + printf("%s %s %s\n", argv0, "kill-(client|sink-input|source-output)", _("#N")); + printf("%s %s %s\n", argv0, "play-sample", _("NAME SINK|#N")); + printf("%s %s %s\n", argv0, "remove-sample", _("NAME")); + printf("%s %s %s\n", argv0, "load-sample", _("NAME FILENAME")); + printf("%s %s %s\n", argv0, "load-sample-lazy", _("NAME FILENAME")); + printf("%s %s %s\n", argv0, "load-sample-dir-lazy", _("PATHNAME")); + printf("%s %s %s\n", argv0, "play-file", _("FILENAME SINK|#N")); + printf("%s %s\n", argv0, "dump"); + printf("%s %s %s\n", argv0, "move-(sink-input|source-output)", _("#N SINK|SOURCE")); + printf("%s %s %s\n", argv0, "suspend-(sink|source)", _("NAME|#N 1|0")); + printf("%s %s %s\n", argv0, "suspend", _("1|0")); + printf("%s %s %s\n", argv0, "set-card-profile", _("CARD PROFILE")); + printf("%s %s %s\n", argv0, "set-(sink|source)-port", _("NAME|#N PORT")); + printf("%s %s %s\n", argv0, "set-port-latency-offset", _("CARD-NAME|CARD-#N PORT OFFSET")); + printf("%s %s %s\n", argv0, "set-log-target", _("TARGET")); + printf("%s %s %s\n", argv0, "set-log-level", _("NUMERIC-LEVEL")); + printf("%s %s %s\n", argv0, "set-log-meta", _("1|0")); + printf("%s %s %s\n", argv0, "set-log-time", _("1|0")); + printf("%s %s %s\n", argv0, "set-log-backtrace", _("FRAMES")); + + printf(_("\n" + " -h, --help Show this help\n" + " --version Show version\n" + "When no command is given pacmd starts in the interactive mode.\n" )); +} + +enum { + ARG_VERSION = 256 +}; + +int main(int argc, char*argv[]) { + pid_t pid; + int fd = -1; + int ret = 1, i; + struct sockaddr_un sa; + char *ibuf = NULL; + char *obuf = NULL; + size_t buf_size, ibuf_size, ibuf_index, ibuf_length, obuf_size, obuf_index, obuf_length; + char *cli; + bool ibuf_eof, obuf_eof, ibuf_closed, obuf_closed; + struct pollfd pollfd[3]; + struct pollfd *watch_socket, *watch_stdin, *watch_stdout; + int stdin_type = 0, stdout_type = 0, fd_type = 0; + + char *bn = NULL; + int c; + + static const struct option long_options[] = { + {"version", 0, NULL, ARG_VERSION}, + {"help", 0, NULL, 'h'}, + {NULL, 0, NULL, 0} + }; + + setlocale(LC_ALL, ""); +#ifdef ENABLE_NLS + bindtextdomain(GETTEXT_PACKAGE, PULSE_LOCALEDIR); +#endif + + bn = pa_path_get_filename(argv[0]); + + while ((c = getopt_long(argc, argv, "h", long_options, NULL)) != -1) { + switch (c) { + case 'h' : + help(bn); + ret = 0; + goto quit; + case ARG_VERSION: + printf(_("pacmd %s\n" + "Compiled with libpulse %s\n" + "Linked with libpulse %s\n"), + PACKAGE_VERSION, + pa_get_headers_version(), + pa_get_library_version()); + ret = 0; + goto quit; + default: + goto quit; + } + } + + if (pa_pid_file_check_running(&pid, "pulseaudio") < 0) { + pa_log(_("No PulseAudio daemon running, or not running as session daemon.")); + goto quit; + } + + if ((fd = pa_socket_cloexec(PF_UNIX, SOCK_STREAM, 0)) < 0) { + pa_log(_("socket(PF_UNIX, SOCK_STREAM, 0): %s"), strerror(errno)); + goto quit; + } + + pa_zero(sa); + sa.sun_family = AF_UNIX; + + if (!(cli = pa_runtime_path("cli"))) + goto quit; + + pa_strlcpy(sa.sun_path, cli, sizeof(sa.sun_path)); + pa_xfree(cli); + + for (i = 0; i < 5; i++) { + int r; + + if ((r = connect(fd, (struct sockaddr*) &sa, sizeof(sa))) < 0 && (errno != ECONNREFUSED && errno != ENOENT)) { + pa_log(_("connect(): %s"), strerror(errno)); + goto quit; + } + + if (r >= 0) + break; + + if (pa_pid_file_kill(SIGUSR2, NULL, "pulseaudio") < 0) { + pa_log(_("Failed to kill PulseAudio daemon.")); + goto quit; + } + + pa_msleep(300); + } + + if (i >= 5) { + pa_log(_("Daemon not responding.")); + goto quit; + } + + buf_size = pa_pipe_buf(fd); + ibuf_size = PA_MIN(buf_size, pa_pipe_buf(STDIN_FILENO)); + ibuf = pa_xmalloc(ibuf_size); + obuf_size = PA_MIN(buf_size, pa_pipe_buf(STDOUT_FILENO)); + obuf = pa_xmalloc(obuf_size); + ibuf_index = ibuf_length = obuf_index = obuf_length = 0; + ibuf_eof = obuf_eof = ibuf_closed = obuf_closed = false; + + if (argc > 1) { + for (i = 1; i < argc; i++) { + size_t k; + + k = PA_MIN(ibuf_size - ibuf_length, strlen(argv[i])); + memcpy(ibuf + ibuf_length, argv[i], k); + ibuf_length += k; + + if (ibuf_length < ibuf_size) { + ibuf[ibuf_length] = i < argc-1 ? ' ' : '\n'; + ibuf_length++; + } + } + + ibuf_eof = true; + } + + if (!ibuf_eof && isatty(STDIN_FILENO)) { + /* send hello to enable interactive mode (welcome message, prompt) */ + if (pa_write(fd, "hello\n", 6, &fd_type) < 0) { + pa_log(_("write(): %s"), strerror(errno)); + goto quit; + } + } + + for (;;) { + struct pollfd *p; + + if (ibuf_eof && + obuf_eof && + ibuf_length <= 0 && + obuf_length <= 0) + break; + + if (ibuf_length <= 0 && ibuf_eof && !ibuf_closed) { + shutdown(fd, SHUT_WR); + ibuf_closed = true; + } + + if (obuf_length <= 0 && obuf_eof && !obuf_closed) { + shutdown(fd, SHUT_RD); + obuf_closed = true; + } + + pa_zero(pollfd); + + p = pollfd; + + if (ibuf_length > 0 || (!obuf_eof && obuf_length <= 0)) { + watch_socket = p++; + watch_socket->fd = fd; + watch_socket->events = + (ibuf_length > 0 ? POLLOUT : 0) | + (!obuf_eof && obuf_length <= 0 ? POLLIN : 0); + } else + watch_socket = NULL; + + if (!ibuf_eof && ibuf_length <= 0) { + watch_stdin = p++; + watch_stdin->fd = STDIN_FILENO; + watch_stdin->events = POLLIN; + } else + watch_stdin = NULL; + + if (obuf_length > 0) { + watch_stdout = p++; + watch_stdout->fd = STDOUT_FILENO; + watch_stdout->events = POLLOUT; + } else + watch_stdout = NULL; + + if (pa_poll(pollfd, p-pollfd, -1) < 0) { + + if (errno == EINTR) + continue; + + pa_log(_("poll(): %s"), strerror(errno)); + goto quit; + } + + if (watch_stdin) { + if (watch_stdin->revents & POLLIN) { + ssize_t r; + pa_assert(ibuf_length <= 0); + + if ((r = pa_read(STDIN_FILENO, ibuf, ibuf_size, &stdin_type)) <= 0) { + if (r < 0) { + pa_log(_("read(): %s"), strerror(errno)); + goto quit; + } + + ibuf_eof = true; + } else { + ibuf_length = (size_t) r; + ibuf_index = 0; + } + } else if (watch_stdin->revents & POLLHUP) + ibuf_eof = true; + } + + if (watch_socket) { + if (watch_socket->revents & POLLIN) { + ssize_t r; + pa_assert(obuf_length <= 0); + + if ((r = pa_read(fd, obuf, obuf_size, &fd_type)) <= 0) { + if (r < 0) { + pa_log(_("read(): %s"), strerror(errno)); + goto quit; + } + + obuf_eof = true; + } else { + obuf_length = (size_t) r; + obuf_index = 0; + } + } else if (watch_socket->revents & POLLHUP) + obuf_eof = true; + } + + if (watch_stdout) { + if (watch_stdout->revents & POLLHUP) { + obuf_eof = true; + obuf_length = 0; + } else if (watch_stdout->revents & POLLOUT) { + ssize_t r; + pa_assert(obuf_length > 0); + + if ((r = pa_write(STDOUT_FILENO, obuf + obuf_index, obuf_length, &stdout_type)) < 0) { + pa_log(_("write(): %s"), strerror(errno)); + goto quit; + } + + obuf_length -= (size_t) r; + obuf_index += obuf_index; + } + } + + if (watch_socket) { + if (watch_socket->revents & POLLHUP) { + ibuf_eof = true; + ibuf_length = 0; + } else if (watch_socket->revents & POLLOUT) { + ssize_t r; + pa_assert(ibuf_length > 0); + + if ((r = pa_write(fd, ibuf + ibuf_index, ibuf_length, &fd_type)) < 0) { + pa_log(_("write(): %s"), strerror(errno)); + goto quit; + } + + ibuf_length -= (size_t) r; + ibuf_index += obuf_index; + } + } + } + + ret = 0; + +quit: + if (fd >= 0) + pa_close(fd); + + pa_xfree(obuf); + pa_xfree(ibuf); + + return ret; +} |