1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
* muniacli.cc
*
* Fri May 4 15:39:06 CEST 2012
* Copyright 2012 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of Munia.
*
* Munia is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Munia is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Munia; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include <string.h>
#include <libwebsockets.h>
enum demo_protocols {
PROTOCOL_TASK,
};
static int callback_task(struct libwebsocket_context *me,
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason,
void *user, void *in, size_t len)
{
unsigned char buf[LWS_SEND_BUFFER_PRE_PADDING + 4096 +
LWS_SEND_BUFFER_POST_PADDING];
int l;
char msg[4096];
switch (reason) {
case LWS_CALLBACK_CLOSED:
fprintf(stderr, "mirror: LWS_CALLBACK_CLOSED\n");
// wsi_mirror = NULL;
break;
case LWS_CALLBACK_CLIENT_ESTABLISHED:
libwebsocket_callback_on_writable(me, wsi);
break;
case LWS_CALLBACK_CLIENT_RECEIVE:
fprintf(stderr, "rx %d '", (int)len);
fwrite(in, len, 1, stderr);
fprintf(stderr, "'\n");
libwebsocket_callback_on_writable(me, wsi);
break;
case LWS_CALLBACK_CLIENT_WRITEABLE:
fgets(msg, sizeof(msg), stdin);
printf("send...\n");
l = sprintf((char *)&buf[LWS_SEND_BUFFER_PRE_PADDING], "%s", msg);
libwebsocket_write(wsi, &buf[LWS_SEND_BUFFER_PRE_PADDING],
l, LWS_WRITE_TEXT);
break;
default:
break;
}
return 0;
}
static struct libwebsocket_protocols protocols[] = {
{ "lws-task-protocol", callback_task, 0, },
{ NULL, NULL, 0 }
};
int client(const char *address, int port)
{
struct libwebsocket_context *context;
struct libwebsocket *wsi_task = NULL;
int ietf_version = -1; // latest
context = libwebsocket_create_context(CONTEXT_PORT_NO_LISTEN, NULL,
protocols,
libwebsocket_internal_extensions,
NULL, NULL, -1, -1, 0);
if (context == NULL) {
fprintf(stderr, "Creating libwebsocket context failed\n");
return 1;
}
/*
* sit there servicing the websocket context to handle incoming
* packets, and drawing random circles on the mirror protocol websocket
*/
int n = 1;
while(n >= 0) {
n = libwebsocket_service(context, 1000);
if (wsi_task == NULL) {
wsi_task = libwebsocket_client_connect(context, address, port,
0, "/", address, address,
protocols[PROTOCOL_TASK].name,
ietf_version);
if (wsi_task == NULL) {
fprintf(stderr, "libwebsocket task connect failed\n");
return -1;
}
} else {
/*
fprintf(stderr, "closing mirror session\n");
libwebsocket_close_and_free_session(context,
wsi_mirror, LWS_CLOSE_STATUS_GOINGAWAY);
*/
}
}
fprintf(stderr, "Exiting\n");
libwebsocket_context_destroy(context);
return 0;
}
int main()
{
client("localhost", 10001);
return 0;
}
|
