#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>
#include "system.c"
#define PORT 55228
int main() {
int socket_desc, client_sock, c, read_size;
struct sockaddr_in server, client;
int addrlen = sizeof(client);
char client_message[2048];
char *call_result;
// Create socket
socket_desc = socket(AF_INET, SOCK_STREAM, 0);
// Prepare the sockaddr_in structure
server.sin_family = AF_INET;
server.sin_addr.s_addr = INADDR_ANY;
server.sin_port = htons(PORT);
// Bind
bind(socket_desc, (struct sockaddr *)&server, sizeof(server));
// Listen
listen(socket_desc, 3);
// Accept
while ( (client_sock = accept(socket_desc, (struct sockaddr *)&client, (socklen_t*)&addrlen)) ) {
// Receive a message from client
while ( (read_size = recv(client_sock, client_message, sizeof(client_message), 0)) > 0 ) {
// Send the message back to client
call_result = call(client_message);
if (strlen(call_result) > 0) {
write(client_sock, call_result, strlen(call_result));
} else {
write(client_sock, "1", 1);
}
}
}
return 0;
}