122 lines
2.6 KiB
C
122 lines
2.6 KiB
C
#include "nmap.h"
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#define NMAP_USAGE1 " [--ip HOST] [--file FILE]"
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#define NMAP_USAGE2 " [--ports PORTS] [--speedup [NOMBRE]] [--scan [TYPE]] HOST"
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int nmap_get_host(char *opt_arg, t_data *data)
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{
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t_host *host;
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host = opt_arg;
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struct sockaddr_in *addr;
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struct addrinfo *servinfo, hints;
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char addrstr[INET_ADDRSTRLEN];
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int sockfd;
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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(host, NULL, &hints, &servinfo))
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{
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fprintf(stderr, "Failed to resolve \"%s\"\n", host);
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return (1);
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}
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host->addr = (struct sockaddr_in*)servinfo->ai_addr;
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inet_ntop(AF_INET, &(addr->sin_addr), addrstr, INET_ADDRSTRLEN);
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host->addrstr = addrstr;
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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 ((sockfd = socket(AF_INET, SOCK_RAW, IPPROTO_TCP)) == -1)
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perror("server: socket");
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ft_lsteadd(&data->host, &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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static t_cliopts g_opts[] =
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{
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{'i', "ip", 0, 0, nmap_get_host, 0},
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/* {'f', "file", 0, 0, nmap_get_file, 0}, */
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/* {'p', "ports", 0, 0, nmap_get_ports, 0}, */
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{'t', "threads", 0, 0, nmap_get_threads, 0},
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{'s', "scan", 0, 0, nmap_get_scan, 0},
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{0, 0, 0, 0, 0, 0},
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};
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int nmap_parse(int ac, char **av, t_data *data)
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{
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(void)ac;
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data->host = NULL;
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data->port = 0;
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data->threads = 0;
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data->scan = 0;
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if (cliopts_get(av, g_opts, data))
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return (ft_perror("nmap"));
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if (!data->host && data->av_data)
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data->host = *data->av_data;
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if (!data->scan)
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data->scan = SCAN_TCP;
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return (0);
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}
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int main(int ac, char **av)
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{
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t_data data;
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if (nmap_parse(ac, av, &data))
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{
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printf("usage: nmap --help\n");
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printf("or nmap"NMAP_USAGE1 NMAP_USAGE2"\n");
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exit(1);
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}
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pthread_t listener;
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pthread_create(&listener, NULL, &nmap_listener, &data);
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nmap(&data);
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return (0);
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}
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