2 * Copyright (c) 2006-2009 Bjorn Andersson <flex@kryo.se>, Erik Ekman <yarrick@kryo.se>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <arpa/inet.h>
21 #include <sys/types.h>
22 #include <sys/socket.h>
23 #include <netinet/in.h>
26 #define MIN(a,b) ((a)<(b)?(a):(b))
29 #define MAX(a,b) ((a)>(b)?(a):(b))
32 #define QUERY_NAME_SIZE 256
34 #if defined IP_RECVDSTADDR
35 # define DSTADDR_SOCKOPT IP_RECVDSTADDR
36 # define dstaddr(x) ((struct in_addr *) CMSG_DATA(x))
37 #elif defined IP_PKTINFO
38 # define DSTADDR_SOCKOPT IP_PKTINFO
39 # define dstaddr(x) (&(((struct in_pktinfo *)(CMSG_DATA(x)))->ipi_addr))
44 int len; /* Total packet length */
45 int sentlen; /* Length of chunk currently transmitted */
46 int offset; /* Current offset */
47 char data[64*1024]; /* The data */
48 char seqno; /* The packet sequence number */
49 char fragment; /* Fragment index */
53 char name[QUERY_NAME_SIZE];
56 struct in_addr destination;
61 int open_dns(int, in_addr_t);
64 void do_chroot(char *);
67 void read_password(char*, size_t);
69 int check_topdomain(char *);