sirboderafael

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>

int main()
{
    int sock;
    struct sockaddr_in server_addr;
    struct hostent *host;
    char send_data[1024];

    host = (struct hostent *) gethostbyname((char *)"SEU-HOST-OU-IP");

    if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
        perror("Erro: Socket");
        exit(1);
    }

    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(25000);
    server_addr.sin_addr = *((struct in_addr *)host->h_addr);
    bzero(&(server_addr.sin_zero),8);

    while (1) {

        printf("Digite algo (\\s ou \\S para sair):");
        gets(send_data);

        if ((strcmp(send_data , "\\s") == 0) || strcmp(send_data , "\\S") == 0) {
            break;
        } else {
            sendto(
                sock,
                send_data,
                strlen(send_data),
                0,
                (struct sockaddr *)&server_addr,
                sizeof(struct sockaddr)
            );
        }
    }
}