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#include <arpa/inet.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
int
main(int argc, char* argv[])
{
int sockfd;
struct sockaddr_in addr;
socklen_t addrlen;
if ((sockfd = socket(PF_INET, SOCK_DGRAM, 0)) == -1) {
perror("Error with socket");
exit(1);
}
addr.sin_family = AF_INET;
addr.sin_port = htons(atoi(argv[1]));
if (inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr) == -1) {
perror("Can't convert IP in bytes");
exit(1);
}
addrlen = sizeof(addr);
if (sendto(sockfd, argv[2], strlen(argv[2]), 0, (struct sockaddr*)&addr, addrlen) == -1) {
perror("Message not sent");
}
close(sockfd);
return 0;
}
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