42-archive/nmap/srcs/scanners.c
2017-10-09 17:13:02 +02:00

47 lines
1.7 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* scanners.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/10/09 15:28:42 by jhalford #+# #+# */
/* Updated: 2017/10/09 16:14:35 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "nmap.h"
coroutine void nmap_scan_tcp(int ch, t_data *data, t_target target)
{
int listen;
t_scan_result res;
t_tcp_packet pkt;
listen = capture_chan(target);
iphdr_init(&pkt.iph);
pkt.iph.protocol = IPPROTO_TCP;
pkt.iph.saddr = *(uint32_t*)&((struct sockaddr_in*)&data->out_sa[target.scan])->sin_addr;
pkt.iph.daddr = *(uint32_t*)&((struct sockaddr_in*)target.host->addr)->sin_addr;
pkt.iph.tot_len = htons(sizeof(t_tcp_packet));
tcphdr_init(&pkt.tcph);
packet.tcph.dest = htons(target.port);
packet.tcph.check = cksum(&packet, sizeof(t_tcp_packet));
if (sendto(sock, &packet, sizeof(packet), 0,
host->addr, host->addrlen) < 0)
{
perror("sendto");
exit(1);
}
/* chrecv(channel, &buf, sizeof()) */
hexdump(&packet, sizeof(packet));
chsend(ch, res, sizeof(res), -1);
printf("result sent\n");
hclose(ch);
}