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 #define ENV_CONFIG_FILE "POLYP_CONFIG"
  39
  40 char* config_file(void) {
  41     char *p, *h;
  42
  43     if ((p = getenv(ENV_CONFIG_FILE)))
  44         return pa_xstrdup(p);
  45
  46     if ((h = getenv("HOME"))) {
  47         struct stat st;
  48         p = pa_sprintf_malloc("%s/.polypaudio", h);
  49         if (stat(p, &st) >= 0)
  50             return p;
  51
  52         pa_xfree(p);
  53     }
  54
  55     return pa_xstrdup(DEFAULT_CONFIG_FILE);
  56 }
  57
  58 void pa_cmdline_help(const char *argv0) {
  59     const char *e;
  60     char *cfg = config_file();
  61
  62     if ((e = strrchr(argv0, '/')))
  63         e++;
  64     else
  65         e = argv0;
  66
  67     printf("%s [options]\n"
  68            "  -r         Try to set high process priority (only available as root)\n"
  69            "  -R         Don't drop root if SETUID root\n"
  70            "  -L MODULE  Load the specified plugin module with the specified argument\n"
  71            "  -F FILE    Run the specified script\n"
  72            "  -C         Open a command line on the running TTY\n"
  73            "  -n         Don't load configuration file (%s)\n"
  74            "  -D         Daemonize after loading the modules\n"
  75            "  -d         Disallow module loading after startup\n"
  76            "  -f         Dont quit when the startup fails\n"
  77            "  -v         Verbose startup\n"
  78            "  -h         Show this help\n"
  79            "  -V         Show version\n", e, cfg);
  80
  81     pa_xfree(cfg);
  82 }
  83
  84 struct pa_cmdline* pa_cmdline_parse(int argc, char * const argv []) {
  85     char c, *cfg;
  86     struct pa_cmdline *cmdline = NULL;
  87     struct pa_strbuf *buf = NULL;
  88     int no_default_config_file = 0;
  89     assert(argc && argv);
  90
  91     cmdline = pa_xmalloc(sizeof(struct pa_cmdline));
  92     cmdline->daemonize =
  93         cmdline->help =
  94         cmdline->verbose =
  95         cmdline->high_priority =
  96         cmdline->stay_root =
  97         cmdline->version =
  98         cmdline->disallow_module_loading = 0;
  99     cmdline->fail = 1;
 100
 101     buf = pa_strbuf_new();
 102     assert(buf);
 103
 104     while ((c = getopt(argc, argv, "L:F:CDhfvrRVnd")) != -1) {
 105         switch (c) {
 106             case 'L':
 107                 pa_strbuf_printf(buf, "load %s\n", optarg);
 108                 break;
 109             case 'F':
 110                 pa_strbuf_printf(buf, ".include %s\n", optarg);
 111                 break;
 112             case 'C':
 113                 pa_strbuf_puts(buf, "load module-cli\n");
 114                 break;
 115             case 'D':
 116                 cmdline->daemonize = 1;
 117                 break;
 118             case 'h':
 119                 cmdline->help = 1;
 120                 break;
 121             case 'f':
 122                 cmdline->fail = 0;
 123                 break;
 124             case 'v':
 125                 cmdline->verbose = 1;
 126                 break;
 127             case 'r':
 128                 cmdline->high_priority = 1;
 129                 break;
 130             case 'R':
 131                 cmdline->stay_root = 1;
 132                 break;
 133             case 'V':
 134                 cmdline->version = 1;
 135                 break;
 136             case 'n':
 137                 no_default_config_file = 1;
 138                 break;
 139             case 'd':
 140                 cmdline->disallow_module_loading = 1;
 141                 break;
 142             default:
 143                 goto fail;
 144         }
 145     }
 146
 147     if (!no_default_config_file) {
 148         cfg = config_file();
 149         pa_strbuf_printf(buf, ".include %s\n", cfg);
 150         pa_xfree(cfg);
 151     }
 152
 153     cmdline->cli_commands = pa_strbuf_tostring_free(buf);
 154     return cmdline;
 155
 156 fail:
 157     if (cmdline)
 158         pa_cmdline_free(cmdline);
 159     if (buf)
 160         pa_strbuf_free(buf);
 161     return NULL;
 162 }
 163
 164 void pa_cmdline_free(struct pa_cmdline *cmd) {
 165     assert(cmd);
 166     pa_xfree(cmd->cli_commands);
 167     pa_xfree(cmd);
 168 }