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75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/*
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* Copyright (c) 2006-2008 Bjorn Andersson <flex@kryo.se>, Erik Ekman <yarrick@kryo.se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __COMMON_H__
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#define __COMMON_H__
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#include <arpa/inet.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#ifndef MIN
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#define MIN(a,b) ((a)<(b)?(a):(b))
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#endif
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#ifndef MAX
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#define MAX(a,b) ((a)>(b)?(a):(b))
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#endif
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#define QUERY_NAME_SIZE 256
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#define DATAHEADER_TOTLEN 2
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#define MAKE_DATAHEADER(last,compressed,fragno) \
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((((last) & 0x1) << 7) | (((compressed) & 0x1) << 6) | ((fragno) & 0x3f))
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#if defined IP_RECVDSTADDR
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# define DSTADDR_SOCKOPT IP_RECVDSTADDR
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# define dstaddr(x) (CMSG_DATA(x))
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#elif defined IP_PKTINFO
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# define DSTADDR_SOCKOPT IP_PKTINFO
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# define dstaddr(x) (&(((struct in_pktinfo *)(CMSG_DATA(x)))->ipi_addr))
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#endif
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struct packet
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{
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int len; /* Total packet length */
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int sentlen; /* Length of chunk currently transmitted */
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int offset; /* Current offset */
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char data[64*1024]; /* The data */
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char seqno; /* The packet sequence number */
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char fragment; /* Fragment index */
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};
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struct query {
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char name[QUERY_NAME_SIZE];
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short type;
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short id;
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struct in_addr destination;
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struct sockaddr from;
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int fromlen;
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};
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int open_dns(int, in_addr_t);
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void close_dns(int);
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void do_chroot(char *);
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void do_detach();
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void read_password(char*, size_t);
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int check_topdomain(char *);
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#endif
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