1/*
2 * tcp.h - builtin FTP client
3 *
4 * This file is part of zsh, the Z shell.
5 *
6 * Copyright (c) 1998-2001 Peter Stephenson
7 * All rights reserved.
8 *
9 * Permission is hereby granted, without written agreement and without
10 * license or royalty fees, to use, copy, modify, and distribute this
11 * software and to distribute modified versions of this software for any
12 * purpose, provided that the above copyright notice and the following
13 * two paragraphs appear in all copies of this software.
14 *
15 * In no event shall Peter Stephenson or the Zsh Development
16 * Group be liable to any party for direct, indirect, special, incidental,
17 * or consequential damages arising out of the use of this software and
18 * its documentation, even if Peter Stephenson, and the Zsh
19 * Development Group have been advised of the possibility of such damage.
20 *
21 * Peter Stephenson and the Zsh Development Group specifically
22 * disclaim any warranties, including, but not limited to, the implied
23 * warranties of merchantability and fitness for a particular purpose.  The
24 * software provided hereunder is on an "as is" basis, and Peter Stephenson
25 * and the Zsh Development Group have no obligation to provide maintenance,
26 * support, updates, enhancements, or modifications.
27 *
28 */
29
30/*
31 * We need to include the zsh headers later to avoid clashes with
32 * the definitions on some systems, however we need the configuration
33 * file to decide whether we can include netinet/in_systm.h, which
34 * doesn't exist on cygwin.
35 */
36#include "../../config.h"
37
38#include <sys/types.h>
39#include <sys/socket.h>
40
41#ifdef HAVE_BIND_NETDB_H
42/*
43 * On systems where we're using -lbind, this has more definitions
44 * than the standard header.
45 */
46#include <bind/netdb.h>
47#else
48#include <netdb.h>
49#endif
50
51/*
52 * For some reason, configure doesn't always detect netinet/in_systm.h.
53 * On some systems, including linux, this seems to be because gcc is
54 * throwing up a warning message about the redefinition of
55 * __USE_LARGEFILE.  This means the problem is somewhere in the
56 * header files where we can't get at it.  For now, revert to
57 * not including this file only on systems where we know it's missing.
58 * Currently this is just some older versions of cygwin.
59 */
60#if defined(HAVE_NETINET_IN_SYSTM_H) || !defined(__CYGWIN__)
61# include <netinet/in_systm.h>
62#endif
63#include <netinet/in.h>
64#include <netinet/ip.h>
65#include <arpa/inet.h>
66
67/* Is IPv6 supported by the library? */
68
69#if defined(AF_INET6) && defined(IN6ADDR_LOOPBACK_INIT) \
70	&& defined(HAVE_INET_NTOP) && defined(HAVE_INET_PTON)
71# define SUPPORT_IPV6 1
72#endif
73
74union tcp_sockaddr {
75    struct sockaddr a;
76    struct sockaddr_in in;
77#ifdef SUPPORT_IPV6
78    struct sockaddr_in6 in6;
79#endif
80};
81
82typedef struct tcp_session *Tcp_session;
83
84#define ZTCP_LISTEN  1
85#define ZTCP_INBOUND 2
86#define ZTCP_ZFTP    16
87
88struct tcp_session {
89    int fd;				/* file descriptor */
90    union tcp_sockaddr sock;  	/* local address   */
91    union tcp_sockaddr peer;  	/* remote address  */
92    int flags;
93};
94
95#include "tcp.pro"
96
97#ifndef INET_ADDRSTRLEN
98# define INET_ADDRSTRLEN 16
99#endif
100
101#ifndef INET6_ADDRSTRLEN
102# define INET6_ADDRSTRLEN 46
103#endif
104