apps/app_settransfercapability.c

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 2005, Frank Sautter, levigo holding gmbh, www.levigo.de
   5  *
   6  * Frank Sautter - asterisk+at+sautter+dot+com
   7  *
   8  * See http://www.asterisk.org for more information about
   9  * the Asterisk project. Please do not directly contact
  10  * any of the maintainers of this project for assistance;
  11  * the project provides a web site, mailing lists and IRC
  12  * channels for your use.
  13  *
  14  * This program is free software, distributed under the terms of
  15  * the GNU General Public License Version 2. See the LICENSE file
  16  * at the top of the source tree.
  17  */
  18
  19 /*! \file
  20  *
  21  * \brief App to set the ISDN Transfer Capability
  22  *
  23  * \author Frank Sautter - asterisk+at+sautter+dot+com
  24  *
  25  * \ingroup applications
  26  */
  27
  28 #include "asterisk.h"
  29
  30 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  31
  32 #include <string.h>
  33 #include <stdlib.h>
  34
  35 #include "asterisk/logger.h"
  36 #include "asterisk/channel.h"
  37 #include "asterisk/pbx.h"
  38 #include "asterisk/module.h"
  39 #include "asterisk/options.h"
  40 #include "asterisk/transcap.h"
  41
  42
  43 static char *app = "SetTransferCapability";
  44
  45 static char *synopsis = "Set ISDN Transfer Capability";
  46
  47
  48 static struct { int val; char *name; } transcaps[] = {
  49         { AST_TRANS_CAP_SPEECH,                         "SPEECH" },
  50         { AST_TRANS_CAP_DIGITAL,                        "DIGITAL" },
  51         { AST_TRANS_CAP_RESTRICTED_DIGITAL,     "RESTRICTED_DIGITAL" },
  52         { AST_TRANS_CAP_3_1K_AUDIO,                     "3K1AUDIO" },
  53         { AST_TRANS_CAP_DIGITAL_W_TONES,        "DIGITAL_W_TONES" },
  54         { AST_TRANS_CAP_VIDEO,                          "VIDEO" },
  55 };
  56
  57 static char *descrip =
  58 "  SetTransferCapability(transfercapability): Set the ISDN Transfer \n"
  59 "Capability of a call to a new value.\n"
  60 "Valid Transfer Capabilities are:\n"
  61 "\n"
  62 "  SPEECH             : 0x00 - Speech (default, voice calls)\n"
  63 "  DIGITAL            : 0x08 - Unrestricted digital information (data calls)\n"
  64 "  RESTRICTED_DIGITAL : 0x09 - Restricted digital information\n"
  65 "  3K1AUDIO           : 0x10 - 3.1kHz Audio (fax calls)\n"
  66 "  DIGITAL_W_TONES    : 0x11 - Unrestricted digital information with tones/announcements\n"
  67 "  VIDEO              : 0x18 - Video\n"
  68 "\n"
  69 "This application is deprecated in favor of Set(CHANNEL(transfercapability)=...)\n"
  70 ;
  71
  72 static int settransfercapability_exec(struct ast_channel *chan, void *data)
  73 {
  74         char *tmp = NULL;
  75         struct ast_module_user *u;
  76         int x;
  77         char *opts;
  78         int transfercapability = -1;
  79         static int dep_warning = 0;
  80
  81         u = ast_module_user_add(chan);
  82
  83         if (!dep_warning) {
  84                 dep_warning = 1;
  85                 ast_log(LOG_WARNING, "SetTransferCapability is deprecated.  Please use CHANNEL(transfercapability) instead.\n");
  86         }
  87
  88         if (data)
  89                 tmp = ast_strdupa(data);
  90         else
  91                 tmp = "";
  92
  93         opts = strchr(tmp, '|');
  94         if (opts)
  95                 *opts = '\0';
  96
  97         for (x = 0; x < (sizeof(transcaps) / sizeof(transcaps[0])); x++) {
  98                 if (!strcasecmp(transcaps[x].name, tmp)) {
  99                         transfercapability = transcaps[x].val;
 100                         break;
 101                 }
 102         }
 103         if (transfercapability < 0) {
 104                 ast_log(LOG_WARNING, "'%s' is not a valid transfer capability (see 'show application SetTransferCapability')\n", tmp);
 105                 ast_module_user_remove(u);
 106                 return 0;
 107         }
 108
 109         chan->transfercapability = (unsigned short)transfercapability;
 110
 111         if (option_verbose > 2)
 112                 ast_verbose(VERBOSE_PREFIX_3 "Setting transfer capability to: 0x%.2x - %s.\n", transfercapability, tmp);
 113
 114         ast_module_user_remove(u);
 115
 116         return 0;
 117 }
 118
 119
 120 static int unload_module(void)
 121 {
 122         int res;
 123
 124         res = ast_unregister_application(app);
 125
 126         ast_module_user_hangup_all();
 127
 128         return res;
 129 }
 130
 131 static int load_module(void)
 132 {
 133         return ast_register_application(app, settransfercapability_exec, synopsis, descrip);
 134 }
 135
 136 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Set ISDN Transfer Capability");