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