63 lines
1.2 KiB
C
63 lines
1.2 KiB
C
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
|
|
unsigned int ip2int(const char * s) {
|
|
int ip[4];
|
|
sscanf(s,"%d.%d.%d.%d",ip,ip+1,ip+2,ip+3);
|
|
return ip[0]<<24|ip[1]<<16|ip[2]<<8|ip[3];
|
|
}
|
|
|
|
int sendall(int s, char *buf, int len, int flags)
|
|
{
|
|
int total = 0;
|
|
int n;
|
|
|
|
while(total < len)
|
|
{
|
|
n = send(s, buf+total, len-total, flags);
|
|
if(n == -1) { break; }
|
|
total += n;
|
|
}
|
|
|
|
return (n==-1 ? -1 : total);
|
|
}
|
|
|
|
char message[] = "Hello there!\n";
|
|
char buf[sizeof(message)];
|
|
|
|
int main()
|
|
{
|
|
int sock;
|
|
struct sockaddr_in addr;
|
|
|
|
sock = socket(AF_INET, SOCK_STREAM, 0);
|
|
if(sock < 0)
|
|
{
|
|
perror("socket");
|
|
exit(1);
|
|
}
|
|
|
|
addr.sin_family = AF_INET;
|
|
addr.sin_port = htons(3425); // или любой другой порт...
|
|
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); // (ip2int("192.168.2.1"));
|
|
if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
|
|
{
|
|
perror("connect");
|
|
exit(2);
|
|
}
|
|
|
|
send(sock, message, sizeof(message), 0);
|
|
recv(sock, buf, sizeof(message), 0);
|
|
|
|
printf("%s\n",buf);
|
|
close(sock);
|
|
|
|
return 0;
|
|
}
|