116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* nmap.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/10/08 19:10:07 by jhalford #+# #+# */
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/* Updated: 2017/10/09 17:12:31 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "nmap.h"
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t_scanner g_scanners[SCAN_MAX]
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{
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scan_tcp,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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/* scan_syn, */
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/* scan_ack, */
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/* scan_fin, */
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/* scan_xmas, */
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/* scan_udp, */
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}
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coroutine void nmap_scan_port(int ch, t_data *data, t_target target)
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{
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int fan_in;
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int fan_in_local;
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int scan;
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fan_in = chmake(sizeof(t_scan_result));
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while (scan = bitfield_lsb(data.scans, USHRT_MAX + 1))
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{
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data.scans &= ~scan;
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fan_in_local = hdup(fan_in);
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scanner = g_scanners[scan];
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go(scanner(fan_in_local, sock, target));
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}
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while (nport)
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{
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int res;
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if ((res = choose(clauses, nport, -1)) < 0)
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printf("choose failed\n");
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nhost--;
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printf("finished scanning port %i\n", res);
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}
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chsend(ch, &host, sizeof(host), -1);
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hclose(ch);
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}
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coroutine void nmap_scan_host(int ch, t_data *data, t_target target)
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{
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int fan_in;
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int fan_in_local;
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t_target target;
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int port;
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fan_in = chmake(sizeof(t_scan_result * SCAN_MAX));
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while (port = bitfield_lsb(data.ports, USHRT_MAX + 1))
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{
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data.ports &= ~port;
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fan_in_local = hdup(fan_in);
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target.port = port;
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go(nmap_scan_port(fan_in_local, data, port));
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}
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while (nport)
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{
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int res;
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if ((res = choose(clauses, nport, -1)) < 0)
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printf("choose failed\n");
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nhost--;
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printf("finished scanning port #%i\n", res);
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}
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chsend(ch, &host, sizeof(host), -1);
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hclose(ch);
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}
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void nmap(t_data *data)
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{
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t_list *list;
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t_host *host;
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int nhost;
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int fan_in_local;
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struct chclause clause[ft_lstsize(data->host)];
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int buf;
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nhost = 0;
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for (t_list *list = data->host; list != NULL; list = list->next)
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{
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host = list->content;
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fan_in_local = hdup(fan_in);
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target.host = host;
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go(nmap_scan_host(fan_in_local, data, target));
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nhost++;
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}
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while (nhost)
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{
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int res;
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if ((res = choose(clauses, nhost, -1)) < 0)
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printf("choose failed\n");
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nhost--;
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printf("host %s has finished scanning\n", host->dn);
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}
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printf("nmap has finished\n");
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return (fan_in);
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}
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