#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define PORT 8080
#define SERVER_IP "localhost"
int main() {
int client_fd;
struct sockaddr_in server_address;
char message[1024];
// Create socket
client_fd = socket(AF_INET, SOCK_STREAM, 0);
if (client_fd < 0) {
perror("socket");
exit(1);
}
// Set server address
memset(&server;_address, 0, sizeof(server_address));
server_address.sin_family = AF_INET;
server_address.sin_port = htons(PORT);
inet_pton(AF_INET, SERVER_IP, &server;_address.sin_addr);
// Connect to server
if (connect(client_fd, (struct sockaddr *)&server;_address, sizeof(server_address)) < 0) {
perror("connect");
exit(1);
}
printf("Connected to server\n");
while (1) {
// Get target ID and message from user
printf("Enter target ID (0 - 4) and message (separated by space): ");
fgets(message, sizeof(message), stdin);
// Extract target ID and message content
char *target_id_str = strtok(message, " ");
 char *message_c "\n");
if (target_id_str != NULL && message_content != NULL) {
int target_id = atoi(target_id_str);
// Send target ID and message to server
sprintf(message, "%d %s", target_id, message_content); // Combine ID and message
int bytes_sent = send(client_fd, message, strlen(message), 0);
if (bytes_sent < 0) {
perror("send");
break;
}
// Receive and print server response (optional)
int bytes_received = recv(client_fd, message, sizeof(message), 0);
if (bytes_received > 0) {
message[bytes_received] = '\0'; // Null terminate received data
printf("Server: %s\n", message);
} else {
if (bytes_received == 0) {
printf("Server disconnected\n");
} else {
perror("recv");
}
break;
}
} else {
printf("Invalid message format\n");
}
}
// Close connection
close(client_fd);
return 0;
}