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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
static inline void die(const char* msg)
{
perror(msg);
exit(-1);
}
int main()
{
struct sockaddr_in addr = {
.sin_family = AF_INET,
.sin_port = htons(8000),
.sin_addr.s_addr = inet_addr("127.0.0.1")
};
char buf[256];
int cfd;
if ((cfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
die("Couldn't open the socket");
if (connect(cfd, (struct sockaddr*) &addr, sizeof(addr)) < 0)
die("Couldn't connect to socket");
for (int i = 0; i < 5; ++i)
{
if (write(cfd, "Ping", 4) < 0)
die("Couldn't send message");
printf("[send] Ping\n");
if (read(cfd, buf, sizeof(buf)) < 0)
die("Couldn't receive message");
printf("[recv] %s\n", buf);
}
close(cfd);
return 0;
}
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