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#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <unistd.h>
#include <stdbool.h>
#include <fcntl.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <netinet/in.h>
// int listen(int sockfd, int backlog);
#define __FAIL EXIT_FAILURE
#define BACKLOG 2
#define __PORT "62000"
int main () {
int sockfd = -1;
int gai_result;
int connect_result = -1;
struct addrinfo hints;
struct addrinfo *res;
struct addrinfo *p;
memset(&hints, 0, sizeof(hints));
//hints.ai_flags = ;
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
gai_result = getaddrinfo("192.168.1.18", __PORT, &hints, &res);
if (gai_result != 0) {
fprintf(stderr, "getaddrinfo: %d", gai_result);
exit(__FAIL);
}
for (p = res ; p != NULL ; p = p->ai_next) {
sockfd = socket(p->ai_family, p->ai_socktype, p->ai_protocol);
if (sockfd == -1) {
fprintf(stderr, "socket fail\n");
continue;
}
connect_result = connect(sockfd, p->ai_addr, p->ai_addrlen);
if (connect_result == -1) {
fprintf(stderr, "connect fail\n");
continue;
}
}
if (connect_result == -1 || sockfd == -1) {
exit(__FAIL);
}
char *msg = "Client says hello!\n";
size_t len = strlen(msg);
for (int i = 0 ; i < 10 ; i++) {
send(sockfd, msg, len, 0);
}
freeaddrinfo(res);
return 0;
}
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