code.delx.au - pulseaudio/blob - polyp/cmdline.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   6   polypaudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   polypaudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with polypaudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27 #include <assert.h>
  28 #include <stdlib.h>
  29 #include <stdio.h>
  30 #include <getopt.h>
  31 #include <sys/stat.h>
  32
  33 #include "cmdline.h"
  34 #include "util.h"
  35 #include "strbuf.h"
  36 #include "xmalloc.h"
  37
  38 enum {
  39     ARG_HELP = 256,
  40     ARG_VERSION,
  41     ARG_DUMP_CONF,
  42     ARG_DUMP_MODULES,
  43     ARG_DAEMONIZE,
  44     ARG_FAIL,
  45     ARG_VERBOSE,
  46     ARG_HIGH_PRIORITY,
  47     ARG_DISALLOW_MODULE_LOADING,
  48     ARG_EXIT_IDLE_TIME,
  49     ARG_MODULE_IDLE_TIME,
  50     ARG_SCACHE_IDLE_TIME,
  51     ARG_LOG_TARGET,
  52     ARG_LOAD,
  53     ARG_FILE,
  54     ARG_DL_SEARCH_PATH,
  55     ARG_RESAMPLE_METHOD
  56 };
  57
  58 static struct option long_options[] = {
  59     {"help",                        0, 0, ARG_HELP},
  60     {"version",                     0, 0, ARG_VERSION},
  61     {"dump-conf",                   0, 0, ARG_DUMP_CONF},
  62     {"dump-modules",                0, 0, ARG_DUMP_MODULES},
  63     {"daemonize",                   2, 0, ARG_DAEMONIZE},
  64     {"fail",                        2, 0, ARG_FAIL},
  65     {"verbose",                     2, 0, ARG_VERBOSE},
  66     {"high-priority",               2, 0, ARG_HIGH_PRIORITY},
  67     {"disallow-module-loading",     2, 0, ARG_DISALLOW_MODULE_LOADING},
  68     {"exit-idle-time",              2, 0, ARG_EXIT_IDLE_TIME},
  69     {"module-idle-time",            2, 0, ARG_MODULE_IDLE_TIME},
  70     {"scache-idle-time",            2, 0, ARG_SCACHE_IDLE_TIME},
  71     {"log-target",                  1, 0, ARG_LOG_TARGET},
  72     {"load",                        1, 0, ARG_LOAD},
  73     {"file",                        1, 0, ARG_FILE},
  74     {"dl-search-path",              1, 0, ARG_DL_SEARCH_PATH},
  75     {"resample-method",             1, 0, ARG_RESAMPLE_METHOD},
  76     {NULL, 0, 0, 0}
  77 };
  78
  79
  80 void pa_cmdline_help(const char *argv0) {
  81     const char *e;
  82
  83     if ((e = strrchr(argv0, '/')))
  84         e++;
  85     else
  86         e = argv0;
  87
  88     printf("%s [options]\n"
  89            "  -h, --help                            Show this help\n"
  90            "      --version                         Show version\n"
  91            "      --dump-conf                       Dump default configuration\n"
  92            "      --dump-modules                    Dump list of available modules\n\n"
  93
  94            "  -D, --daemonize[=BOOL]                Daemonize after startup\n"
  95            "      --fail[=BOOL]                     Quit when startup fails\n"
  96            "      --verbose[=BOOL]                  Be slightly more verbose\n"
  97            "      --high-priority[=BOOL]            Try to set high process priority (only available as root)\n"
  98            "      --disallow-module-loading[=BOOL]  Disallow module loading after startup\n"
  99            "      --exit-idle-time=SECS             Terminate the daemon when idle and this time passed\n"
 100            "      --module-idle-time=SECS           Unload autoloaded modules when idle and this time passed\n"
 101            "      --scache-idle-time=SECS           Unload autoloaded samples when idle and this time passed\n"
 102            "      --log-target={auto,syslog,stderr} Specify the log target\n"
 103            "  -p, --dl-search-path=PATH             Set the search path for dynamic shared objects (plugins)\n"
 104            "      --resample-method=[METHOD]        Use the specified resampling method\n\n"
 105
 106            "  -L, --load=\"MODULE ARGUMENTS\"         Load the specified plugin module with the specified argument\n"
 107            "  -F, --file=FILENAME                   Run the specified script\n"
 108            "  -C                                    Open a command line on the running TTY after startup\n\n"
 109
 110            "  -n                                    Don't load default script file\n", e);
 111 }
 112
 113 int pa_cmdline_parse(struct pa_daemon_conf *conf, int argc, char *const argv [], int *d) {
 114     struct pa_strbuf *buf = NULL;
 115     int c;
 116     assert(conf && argc && argv);
 117
 118     buf = pa_strbuf_new();
 119
 120     if (conf->script_commands)
 121         pa_strbuf_puts(buf, conf->script_commands);
 122
 123     while ((c = getopt_long(argc, argv, "L:F:ChDnp:", long_options, NULL)) != -1) {
 124         switch (c) {
 125             case ARG_HELP:
 126             case 'h':
 127                 conf->cmd = PA_CMD_HELP;
 128                 break;
 129
 130             case ARG_VERSION:
 131                 conf->cmd = PA_CMD_VERSION;
 132                 break;
 133
 134             case ARG_DUMP_CONF:
 135                 conf->cmd = PA_CMD_DUMP_CONF;
 136                 break;
 137
 138             case ARG_DUMP_MODULES:
 139                 conf->cmd = PA_CMD_DUMP_MODULES;
 140                 break;
 141
 142             case ARG_LOAD:
 143             case 'L':
 144                 pa_strbuf_printf(buf, "load-module %s\n", optarg);
 145                 break;
 146
 147             case ARG_FILE:
 148             case 'F':
 149                 pa_strbuf_printf(buf, ".include %s\n", optarg);
 150                 break;
 151
 152             case 'C':
 153                 pa_strbuf_puts(buf, "load-module module-cli\n");
 154                 break;
 155
 156             case ARG_DAEMONIZE:
 157             case 'D':
 158                 if ((conf->daemonize = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
 159                     pa_log(__FILE__": --daemonize expects boolean argument\n");
 160                     goto fail;
 161                 }
 162                 break;
 163
 164             case ARG_FAIL:
 165                 if ((conf->fail = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
 166                     pa_log(__FILE__": --fail expects boolean argument\n");
 167                     goto fail;
 168                 }
 169                 break;
 170
 171             case ARG_VERBOSE:
 172                 if ((conf->verbose = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
 173                     pa_log(__FILE__": --verbose expects boolean argument\n");
 174                     goto fail;
 175                 }
 176                 break;
 177
 178             case ARG_HIGH_PRIORITY:
 179                 if ((conf->high_priority = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
 180                     pa_log(__FILE__": --high-priority expects boolean argument\n");
 181                     goto fail;
 182                 }
 183                 break;
 184
 185             case ARG_DISALLOW_MODULE_LOADING:
 186                 if ((conf->disallow_module_loading = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
 187                     pa_log(__FILE__": --disallow-module-loading expects boolean argument\n");
 188                     goto fail;
 189                 }
 190                 break;
 191
 192             case 'p':
 193             case ARG_DL_SEARCH_PATH:
 194                 pa_xfree(conf->dl_search_path);
 195                 conf->dl_search_path = *optarg ? pa_xstrdup(optarg) : NULL;
 196                 break;
 197
 198             case 'n':
 199                 pa_xfree(conf->default_script_file);
 200                 conf->default_script_file = NULL;
 201                 break;
 202
 203             case ARG_LOG_TARGET:
 204                 if (pa_daemon_conf_set_log_target(conf, optarg) < 0) {
 205                     pa_log(__FILE__": Invalid log target: use either 'syslog', 'stderr' or 'auto'.\n");
 206                     goto fail;
 207                 }
 208                 break;
 209
 210             case ARG_EXIT_IDLE_TIME:
 211                 conf->exit_idle_time = atoi(optarg);
 212                 break;
 213
 214             case ARG_MODULE_IDLE_TIME:
 215                 conf->module_idle_time = atoi(optarg);
 216                 break;
 217
 218             case ARG_SCACHE_IDLE_TIME:
 219                 conf->scache_idle_time = atoi(optarg);
 220                 break;
 221
 222             case ARG_RESAMPLE_METHOD:
 223                 if (pa_daemon_conf_set_resample_method(conf, optarg) < 0) {
 224                     pa_log(__FILE__": Invalid resample method '%s'.\n", optarg);
 225                     goto fail;
 226                 }
 227                 break;
 228
 229             default:
 230                 goto fail;
 231         }
 232     }
 233
 234     pa_xfree(conf->script_commands);
 235     conf->script_commands = pa_strbuf_tostring_free(buf);
 236
 237     if (!conf->script_commands) {
 238         pa_xfree(conf->script_commands);
 239         conf->script_commands = NULL;
 240     }
 241
 242     *d = optind;
 243
 244     return 0;
 245
 246 fail:
 247     if (buf)
 248         pa_strbuf_free(buf);
 249
 250     return -1;
 251 }