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
|
/*
* Copyright (C) 2014 Tomasz Kramkowski <tk@the-tk.com>
*
* This program is free software. It is licensed under version 3 of the
* GNU General Public License.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see [http://www.gnu.org/licenses/].
*/
// A total mess of attempts at socket programming. (Relatively successful.)
#include<stdio.h>
#include<string.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<netdb.h>
#define messagelength 1000000
int main(int argc, char *argv[]) {
char *hostname = "feeds.feedburner.com";
char ip[100];
struct hostent *he;
struct in_addr **addr_list;
int i;
if ( (he = gethostbyname( hostname ) ) == NULL) {
//gethostbyname failed
herror("gethostbyname");
return 1;
}
addr_list = (struct in_addr **) he->h_addr_list;
for(i = 0; addr_list[i] != NULL; i++) {
strcpy(ip, inet_ntoa(*addr_list[i]) );
}
printf("%s resolved to : %s\n", hostname, ip);
int socket_desc;
struct sockaddr_in server;
char *message, server_reply[messagelength];
socket_desc = socket(AF_INET, SOCK_STREAM, 0);
if (socket_desc == -1) {
printf("Could not create socket");
}
server.sin_addr.s_addr = inet_addr(ip);
server.sin_family = AF_INET;
server.sin_port = htons( 80 );
if (connect(socket_desc, (struct sockaddr *)&server, sizeof(server)) < 0) {
puts("connect error");
return 1;
}
puts("Connected\n");
message = "HEAD /Explosm HTTP/1.1\r\nHost: feeds.feedburner.com\r\n\r\n";
if( send(socket_desc , message , strlen(message) , 0) < 0) {
puts("Send failed");
return 1;
}
puts("Data Send\n");
if( recv(socket_desc, server_reply , messagelength, 0) < 0) {
puts("recv failed");
}
puts("Reply received\n");
puts(server_reply);
return 0;
}
|
