tools/alias.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <string.h>
   5 #include <getopt.h>
   6
   7 #include <config.h>
   8
   9 #include <jack/jack.h>
  10
  11 char * my_name;
  12
  13 void
  14 show_version (void)
  15 {
  16         fprintf (stderr, "%s: JACK Audio Connection Kit version " VERSION "\n",
  17                 my_name);
  18 }
  19
  20 void
  21 show_usage (void)
  22 {
  23         show_version ();
  24         fprintf (stderr, "\nUsage: %s [options] portname alias\n", my_name);
  25         fprintf (stderr, "List active Jack ports, and optionally display extra information.\n\n");
  26         fprintf (stderr, "Display options:\n");
  27         fprintf (stderr, "        -u, --unalias         remove `alias' as an alias for `port'\n");
  28         fprintf (stderr, "        -h, --help            Display this help message\n");
  29         fprintf (stderr, "        --version             Output version information and exit\n\n");
  30         fprintf (stderr, "For more information see http://jackaudio.org/\n");
  31 }
  32
  33 int
  34 main (int argc, char *argv[])
  35 {
  36         jack_client_t *client;
  37         jack_status_t status;
  38         char* portname;
  39         char* alias;
  40         int unset = 0;
  41         int ret;
  42         int c;
  43         int option_index;
  44         extern int optind;
  45         jack_port_t* port;
  46
  47         struct option long_options[] = {
  48                 { "unalias", 0, 0, 'u' },
  49                 { "help", 0, 0, 'h' },
  50                 { "version", 0, 0, 'v' },
  51                 { 0, 0, 0, 0 }
  52         };
  53
  54         if (argc < 3) {
  55                 show_usage ();
  56                 return 1;
  57         }
  58
  59         my_name = strrchr(argv[0], '/');
  60         if (my_name == 0) {
  61                 my_name = argv[0];
  62         } else {
  63                 my_name ++;
  64         }
  65
  66         while ((c = getopt_long (argc, argv, "uhv", long_options, &option_index)) >= 0) {
  67                 switch (c) {
  68                 case 'u':
  69                         unset = 1;
  70                         break;
  71                 case 'h':
  72                         show_usage ();
  73                         return 1;
  74                         break;
  75                 case 'v':
  76                         show_version ();
  77                         return 1;
  78                         break;
  79                 default:
  80                         show_usage ();
  81                         return 1;
  82                         break;
  83                 }
  84         }
  85
  86         portname = argv[optind++];
  87         alias = argv[optind];
  88
  89         /* Open a client connection to the JACK server.  Starting a
  90          * new server only to list its ports seems pointless, so we
  91          * specify JackNoStartServer. */
  92         //JOQ: need a new server name option
  93
  94         client = jack_client_open ("lsp", JackNoStartServer, &status);
  95
  96         if (client == NULL) {
  97                 if (status & JackServerFailed) {
  98                         fprintf (stderr, "JACK server not running\n");
  99                 } else {
 100                         fprintf (stderr, "jack_client_open() failed, "
 101                                  "status = 0x%2.0x\n", status);
 102                 }
 103                 return 1;
 104         }
 105
 106         if ((port = jack_port_by_name (client, portname)) == 0) {
 107                 fprintf (stderr, "No port named \"%s\"\n", portname);
 108                 return 1;
 109         }
 110
 111         if (!unset) {
 112                 ret = jack_port_set_alias (port, alias);
 113         } else {
 114                 ret = jack_port_unset_alias (port, alias);
 115         }
 116
 117         jack_client_close (client);
 118
 119         return ret;
 120
 121 }