recv_common.c

   1 /*
   2  * Copyright (C) 2006 Andre Noll <maan@systemlinux.org>
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     This program is distributed in the hope that it will be useful,
  10  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *     GNU General Public License for more details.
  13  *
  14  *     You should have received a copy of the GNU General Public License
  15  *     along with this program; if not, write to the Free Software
  16  *     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  17  */
  18
  19 /** \file recv_common.c common functions of para_recv and para_audiod */
  20
  21 #include "para.h"
  22
  23 #include "list.h"
  24 #include "sched.h"
  25 #include "recv.h"
  26 #include "string.h"
  27
  28 void (*crypt_function_recv)(unsigned long len, const unsigned char *indata, unsigned char *outdata) = NULL;
  29 void (*crypt_function_send)(unsigned long len, const unsigned char *indata, unsigned char *outdata) = NULL;
  30
  31 DEFINE_RECEIVER_ARRAY;
  32 static void *parse_receiver_args(int receiver_num, char *options)
  33 {
  34         struct receiver *r = &receivers[receiver_num];
  35         char **argv;
  36         int argc, i;
  37         void *conf;
  38
  39
  40 //      PARA_DEBUG_LOG("%s, options: %s\n", r->name,
  41 //              options? options : "(none)");
  42         if (options) {
  43                 PARA_DEBUG_LOG("options: %s\n", options);
  44                 argc = split_args(options, &argv, " \t");
  45                 for (i = argc - 1; i >= 0; i--)
  46                         argv[i + 1] = argv[i];
  47                 argv[0] = para_strdup(r->name);
  48                 argc += 1;
  49                 PARA_DEBUG_LOG("argc = %d, argv[0]: %s\n", argc, argv[0]);
  50         } else {
  51                 argc = 1;
  52                 argv = para_malloc(2 * sizeof(char*));
  53                 argv[0] = NULL;
  54                 argv[1] = NULL;
  55         }
  56         conf = r->parse_config(argc, argv);
  57         if (!conf) {
  58                 for (i = 0; i < argc; i++)
  59                         free(argv[i]);
  60                 free(argv);
  61                 return NULL;
  62         }
  63         return conf;
  64 }
  65
  66 void *check_receiver_arg(char *ra, int *receiver_num)
  67 {
  68         int j;
  69
  70         PARA_DEBUG_LOG("checking %s\n", ra);
  71         for (j = 0; receivers[j].name; j++) {
  72                 const char *name = receivers[j].name;
  73                 size_t len = strlen(name);
  74                 char c;
  75                 if (strlen(ra) < len)
  76                         continue;
  77                 if (strncmp(name, ra, len))
  78                         continue;
  79                 c = ra[len];
  80                 if (c && c != ' ')
  81                         continue;
  82                 if (c && !receivers[j].parse_config)
  83                         return NULL;
  84                 *receiver_num = j;
  85                 return parse_receiver_args(j, c? ra + len + 1: NULL);
  86         }
  87         PARA_ERROR_LOG("%s", "receiver not found\n");
  88         return NULL;
  89 }