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
146
147
148
149
150
151
152
153
154
155
|
/*
* Copyright (c) 2015 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#define SOCKCLNT_SERVER_PORT 1234 /* whatever */
typedef signed char i8;
typedef signed short i16;
typedef signed int i32;
typedef signed long long i64;
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned long long u64;
typedef unsigned long uword;
#define VL_API_PACKED(x) x __attribute__ ((packed))
typedef VL_API_PACKED (struct _vl_api_sockclnt_create
{
u16 _vl_msg_id; u8 name[64];
u32 context;
}) vl_api_sockclnt_create_t;
typedef VL_API_PACKED (struct _vl_api_sockclnt_create_reply
{
u16 _vl_msg_id;
i32 response; u64 handle; u32 index; u32 context;
}) vl_api_sockclnt_create_reply_t;
typedef VL_API_PACKED (struct _vl_api_sockclnt_delete
{
u16 _vl_msg_id; u32 index;
u64 handle;
}) vl_api_sockclnt_delete_t;
typedef VL_API_PACKED (struct _vl_api_sockclnt_delete_reply
{
u16 _vl_msg_id; i32 response; u64 handle;
}) vl_api_sockclnt_delete_reply_t;
void
error (char *msg)
{
perror (msg);
exit (0);
}
int
main (int argc, char *argv[])
{
int sockfd, portno, n;
struct sockaddr_in serv_addr;
struct hostent *server;
char buffer[256];
int i;
u32 nbytes;
vl_api_sockclnt_create_t *mp;
vl_api_sockclnt_create_reply_t *rp;
char *rdptr;
int total_bytes;
for (i = 0; i < 1; i++)
{
portno = SOCKCLNT_SERVER_PORT;
sockfd = socket (AF_INET, SOCK_STREAM, 0);
if (sockfd < 0)
error ("ERROR opening socket");
server = gethostbyname ("localhost");
if (server == NULL)
{
fprintf (stderr, "ERROR, no such host\n");
exit (0);
}
bzero ((char *) &serv_addr, sizeof (serv_addr));
serv_addr.sin_family = AF_INET;
bcopy ((char *) server->h_addr,
(char *) &serv_addr.sin_addr.s_addr, server->h_length);
serv_addr.sin_port = htons (portno);
if (connect (sockfd, (const void *) &serv_addr, sizeof (serv_addr)) < 0)
error ("ERROR connecting");
memset (buffer, 0, sizeof (buffer));
mp = (vl_api_sockclnt_create_t *) buffer;
mp->_vl_msg_id = ntohs (13); /* VL_API_SOCKCLNT_CREATE */
strncpy ((char *) mp->name, "socket-test", sizeof (mp->name) - 1);
mp->name[sizeof (mp->name) - 1] = 0;
mp->context = 0xfeedface;
/* length of the message, including the length itself */
nbytes = sizeof (*mp) + sizeof (nbytes);
nbytes = ntohl (nbytes);
n = write (sockfd, &nbytes, sizeof (nbytes));
if (n < 0)
error ("ERROR writing len to socket");
n = write (sockfd, mp, sizeof (*mp));
if (n < 0)
error ("ERROR writing msg to socket");
memset (buffer, 0, sizeof (buffer));
total_bytes = 0;
rdptr = buffer;
do
{
n = read (sockfd, rdptr, sizeof (buffer) - (rdptr - buffer));
if (n < 0)
error ("ERROR reading from socket");
printf ("read %d bytes\n", n);
total_bytes += n;
rdptr += n;
}
while (total_bytes < sizeof (vl_api_sockclnt_create_reply_t) + 4);
rp = (vl_api_sockclnt_create_reply_t *) (buffer + 4);
/* VL_API_SOCKCLNT_CREATE_REPLY */
if (ntohs (rp->_vl_msg_id) != 14)
{
printf ("WARNING: msg id %d\n", ntohs (rp->_vl_msg_id));
}
printf ("response %d, handle 0x%llx, index %d, context 0x%x\n",
ntohl (rp->response), rp->handle, rp->index, rp->context);
close (sockfd);
}
return 0;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
