91 lines
2 KiB
C
91 lines
2 KiB
C
#include "nmap.h"
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int nmap_get_host(char *node, t_data *data)
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{
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t_host host;
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struct addrinfo *servinfo, hints;
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memset (&hints, 0, sizeof (hints));
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hints.ai_family = PF_UNSPEC;
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hints.ai_socktype = SOCK_RAW;
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hints.ai_flags = AI_CANONNAME;
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if (getaddrinfo(node, NULL, &hints, &servinfo))
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{
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fprintf(stderr, "Failed to resolve \"%s\"\n", node);
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return (1);
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}
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host.addr = servinfo->ai_addr;
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host.addrlen = servinfo->ai_addrlen;
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host.node = node;
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host.dn = servinfo->ai_canonname;
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void *addr;
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if (servinfo->ai_family == AF_INET) { // IPv4
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struct sockaddr_in *ipv4 = (struct sockaddr_in *)servinfo->ai_addr;
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addr = &(ipv4->sin_addr);
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} else { // IPv6
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struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)servinfo->ai_addr;
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addr = &(ipv6->sin6_addr);
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}
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// convert the IP to a string and print it:
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inet_ntop(servinfo->ai_family, addr, host.ip, sizeof(host.ip));
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printf("dn=%s\n", host.dn);
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printf("ip=%s\n", host.ip);
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/* MUST DO AND rDNS search here */
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/* printf("rDNS record for %s: %s\n", addrstr, DOMAIN NAME WITH RDNS); */
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if ((host.sock_tcp = socket(AF_INET, SOCK_RAW, IPPROTO_TCP)) == -1)
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perror("server: socket");
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int val = 1;
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if (setsockopt(host.sock_tcp, IPPROTO_IP, IP_HDRINCL, &val, sizeof(val)) == -1)
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return (1);
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ft_lsteadd(&data->host, ft_lstnew(&host, sizeof(host)));
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return (0);
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}
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/* int nmap_get_file(char *opt_arg, t_data *data) */
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/* { */
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/* } */
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/* int nmap_get_ports(char *opt_arg, t_data *data) */
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/* { */
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/* } */
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int nmap_get_threads(char *opt_arg, t_data *data)
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{
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data->threads = ft_atoi(opt_arg);
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return (0);
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}
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int nmap_get_scan(char *opt_arg, t_data *data)
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{
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while (*opt_arg)
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{
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if (*opt_arg == 'T')
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data->scan |= SCAN_TCP;
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else if (*opt_arg == 'S')
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data->scan |= SCAN_SYN;
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else if (*opt_arg == 'N')
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data->scan |= SCAN_NULL;
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else if (*opt_arg == 'A')
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data->scan |= SCAN_ACK;
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else if (*opt_arg == 'F')
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data->scan |= SCAN_FIN;
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else if (*opt_arg == 'X')
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data->scan |= SCAN_XMAS;
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else if (*opt_arg == 'U')
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data->scan |= SCAN_UDP;
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else
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return (1);
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opt_arg++;
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}
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return (0);
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}
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