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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <assert.h>
#include "utils.h"
#include "net.h"
#define MAX_PKT_SIZE 2048
int main(int argc,char *argv[])
{
char pkt[MAX_PKT_SIZE];
ssize_t pkt_size;
int sck = -1;
FILE *fd;
/* Wait connection */
if (ip_listen(NULL,atoi(argv[2]),SOCK_DGRAM,1,&sck) < 1) {
perror("ip_listen");
exit(EXIT_FAILURE);
}
/* Receive packet and store it */
if ((pkt_size = recvfrom(sck,pkt,sizeof(pkt),0,NULL,NULL)) < 0) {
perror("recvfrom");
exit(EXIT_FAILURE);
}
if (!(fd = fopen(argv[1],"w"))) {
perror("fopen");
exit(EXIT_FAILURE);
}
fwrite(pkt,1,pkt_size,fd);
fclose(fd);
close(sck);
return(0);
}
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