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 void pa_cmdline_help(const char *argv0) {
  80     const char *e;
  81
  82     if ((e = strrchr(argv0, '/')))
  83         e++;
  84     else
  85         e = argv0;
  86
  87     printf("%s [options]\n\n"
  88            "  -h, --help                            Show this help\n"
  89            "      --version                         Show version\n"
  90            "      --dump-conf                       Dump default configuration\n"
  91            "      --dump-modules                    Dump list of available modules\n\n"
  92
  93            "  -D, --daemonize[=BOOL]                Daemonize after startup\n"
  94            "      --fail[=BOOL]                     Quit when startup fails\n"
  95            "      --verbose[=BOOL]                  Be slightly more verbose\n"
  96            "      --high-priority[=BOOL]            Try to set high process priority (only available as root)\n"
  97            "      --disallow-module-loading[=BOOL]  Disallow module loading after startup\n"
  98            "      --exit-idle-time=SECS             Terminate the daemon when idle and this time passed\n"
  99            "      --module-idle-time=SECS           Unload autoloaded modules when idle and this time passed\n"
 100            "      --scache-idle-time=SECS           Unload autoloaded samples when idle and this time passed\n"
 101            "      --log-target={auto,syslog,stderr} Specify the log target\n"
 102            "  -p, --dl-search-path=PATH             Set the search path for dynamic shared objects (plugins)\n"
 103            "      --resample-method=[METHOD]        Use the specified resampling method\n\n"
 104
 105            "  -L, --load=\"MODULE ARGUMENTS\"         Load the specified plugin module with the specified argument\n"
 106            "  -F, --file=FILENAME                   Run the specified script\n"
 107            "  -C                                    Open a command line on the running TTY after startup\n\n"
 108
 109            "  -n                                    Don't load default script file\n", e);
 110 }
 111
 112 int pa_cmdline_parse(struct pa_daemon_conf *conf, int argc, char *const argv [], int *d) {
 113     struct pa_strbuf *buf = NULL;
 114     int c;
 115     assert(conf && argc && argv);
 116
 117     buf = pa_strbuf_new();
 118
 119     if (conf->script_commands)
 120         pa_strbuf_puts(buf, conf->script_commands);
 121
 122     while ((c = getopt_long(argc, argv, "L:F:ChDnp:", long_options, NULL)) != -1) {
 123         switch (c) {
 124             case ARG_HELP:
 125             case 'h':
 126                 conf->cmd = PA_CMD_HELP;
 127                 break;
 128
 129             case ARG_VERSION:
 130                 conf->cmd = PA_CMD_VERSION;
 131                 break;
 132
 133             case ARG_DUMP_CONF:
 134                 conf->cmd = PA_CMD_DUMP_CONF;
 135                 break;
 136
 137             case ARG_DUMP_MODULES:
 138                 conf->cmd = PA_CMD_DUMP_MODULES;
 139                 break;
 140
 141             case ARG_LOAD:
 142             case 'L':
 143                 pa_strbuf_printf(buf, "load-module %s\n", optarg);
 144                 break;
 145
 146             case ARG_FILE:
 147             case 'F':
 148                 pa_strbuf_printf(buf, ".include %s\n", optarg);
 149                 break;
 150
 151             case 'C':
 152                 pa_strbuf_puts(buf, "load-module module-cli\n");
 153                 break;
 154
 155             case ARG_DAEMONIZE:
 156             case 'D':
 157                 if ((conf->daemonize = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
 158                     pa_log(__FILE__": --daemonize expects boolean argument\n");
 159                     goto fail;
 160                 }
 161                 break;
 162
 163             case ARG_FAIL:
 164                 if ((conf->fail = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
 165                     pa_log(__FILE__": --fail expects boolean argument\n");
 166                     goto fail;
 167                 }
 168                 break;
 169
 170             case ARG_VERBOSE:
 171                 if ((conf->verbose = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
 172                     pa_log(__FILE__": --verbose expects boolean argument\n");
 173                     goto fail;
 174                 }
 175                 break;
 176
 177             case ARG_HIGH_PRIORITY:
 178                 if ((conf->high_priority = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
 179                     pa_log(__FILE__": --high-priority expects boolean argument\n");
 180                     goto fail;
 181                 }
 182                 break;
 183
 184             case ARG_DISALLOW_MODULE_LOADING:
 185                 if ((conf->disallow_module_loading = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
 186                     pa_log(__FILE__": --disallow-module-loading expects boolean argument\n");
 187                     goto fail;
 188                 }
 189                 break;
 190
 191             case 'p':
 192             case ARG_DL_SEARCH_PATH:
 193                 pa_xfree(conf->dl_search_path);
 194                 conf->dl_search_path = *optarg ? pa_xstrdup(optarg) : NULL;
 195                 break;
 196
 197             case 'n':
 198                 pa_xfree(conf->default_script_file);
 199                 conf->default_script_file = NULL;
 200                 break;
 201
 202             case ARG_LOG_TARGET:
 203                 if (pa_daemon_conf_set_log_target(conf, optarg) < 0) {
 204                     pa_log(__FILE__": Invalid log target: use either 'syslog', 'stderr' or 'auto'.\n");
 205                     goto fail;
 206                 }
 207                 break;
 208
 209             case ARG_EXIT_IDLE_TIME:
 210                 conf->exit_idle_time = atoi(optarg);
 211                 break;
 212
 213             case ARG_MODULE_IDLE_TIME:
 214                 conf->module_idle_time = atoi(optarg);
 215                 break;
 216
 217             case ARG_SCACHE_IDLE_TIME:
 218                 conf->scache_idle_time = atoi(optarg);
 219                 break;
 220
 221             case ARG_RESAMPLE_METHOD:
 222                 if (pa_daemon_conf_set_resample_method(conf, optarg) < 0) {
 223                     pa_log(__FILE__": Invalid resample method '%s'.\n", optarg);
 224                     goto fail;
 225                 }
 226                 break;
 227
 228             default:
 229                 goto fail;
 230         }
 231     }
 232
 233     pa_xfree(conf->script_commands);
 234     conf->script_commands = pa_strbuf_tostring_free(buf);
 235
 236     if (!conf->script_commands) {
 237         pa_xfree(conf->script_commands);
 238         conf->script_commands = NULL;
 239     }
 240
 241     *d = optind;
 242
 243     return 0;
 244
 245 fail:
 246     if (buf)
 247         pa_strbuf_free(buf);
 248
 249     return -1;
 250 }