1 /*
2  *  Copyright 2012 The WebRTC Project Authors. All rights reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #include "webrtc/examples/peerconnection/client/defaults.h"
12 
13 #include <stdlib.h>
14 #include <string.h>
15 
16 #ifdef WIN32
17 #include <winsock2.h>
18 #else
19 #include <unistd.h>
20 #endif
21 
22 #include "webrtc/base/arraysize.h"
23 #include "webrtc/base/common.h"
24 
25 const char kAudioLabel[] = "audio_label";
26 const char kVideoLabel[] = "video_label";
27 const char kStreamLabel[] = "stream_label";
28 const uint16_t kDefaultServerPort = 8888;
29 
GetEnvVarOrDefault(const char * env_var_name,const char * default_value)30 std::string GetEnvVarOrDefault(const char* env_var_name,
31                                const char* default_value) {
32   std::string value;
33   const char* env_var = getenv(env_var_name);
34   if (env_var)
35     value = env_var;
36 
37   if (value.empty())
38     value = default_value;
39 
40   return value;
41 }
42 
GetPeerConnectionString()43 std::string GetPeerConnectionString() {
44   return GetEnvVarOrDefault("WEBRTC_CONNECT", "stun:stun.l.google.com:19302");
45 }
46 
GetDefaultServerName()47 std::string GetDefaultServerName() {
48   return GetEnvVarOrDefault("WEBRTC_SERVER", "localhost");
49 }
50 
GetPeerName()51 std::string GetPeerName() {
52   char computer_name[256];
53   std::string ret(GetEnvVarOrDefault("USERNAME", "user"));
54   ret += '@';
55   if (gethostname(computer_name, arraysize(computer_name)) == 0) {
56     ret += computer_name;
57   } else {
58     ret += "host";
59   }
60   return ret;
61 }
62