telnetd/libtelnet/getaddrinfo.h
Stephen Heumann de9fad8d67 More small changes for GNO and ORCA/C compatibility.
In particular, address a couple instances where GNO's sockets implementation doesn't comply with modern standards.
Also, add a few missing prototypes so we can use ORCA/C prototype-checking lint functionality.
2015-05-31 19:52:28 -05:00

246 lines
5.4 KiB
C

/*
* Copyright (c) 2001, 02 Motoyuki Kasahara
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef GETADDRINFO_H
#define GETADDRINFO_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#ifdef WIN32
#include <time.h>
#include <winsock2.h>
#ifdef DO_IPV6
#include <ws2tcpip.h>
#endif /* DO_IPV6 */
#include <windows.h>
#else
#include <sys/socket.h>
#include <netdb.h>
#endif
#ifdef __GNO__
typedef int socklen_t;
typedef unsigned short in_port_t;
/* GNO calls actually expect an older form of "struct sockaddr",
* different from the "struct sockaddr" defined in the headers. */
# define sockaddr __SOCKADDR
#endif
/********************************************************************/
/*
* Undefine all the macros.
* <netdb.h> might defines some of them.
*/
#ifdef EAI_ADDRFAMILY
#undef EAI_ADDRFAMILY
#endif
#ifdef EAI_AGAIN
#undef EAI_AGAIN
#endif
#ifdef EAI_BADFLAGS
#undef EAI_BADFLAGS
#endif
#ifdef EAI_FAIL
#undef EAI_FAIL
#endif
#ifdef EAI_FAMILY
#undef EAI_FAMILY
#endif
#ifdef EAI_MEMORY
#undef EAI_MEMORY
#endif
#ifdef EAI_NONAME
#undef EAI_NONAME
#endif
#ifdef EAI_OVERFLOW
#undef EAI_OVERFLOW
#endif
#ifdef EAI_SERVICE
#undef EAI_SERVICE
#endif
#ifdef EAI_SOCKTYPE
#undef EAI_SOCKTYPE
#endif
#ifdef EAI_SYSTEM
#undef EAI_SYSTEM
#endif
#ifdef AI_PASSIVE
#undef AI_PASSIVE
#endif
#ifdef AI_CANONNAME
#undef AI_CANONNAME
#endif
#ifdef AI_NUMERICHOST
#undef AI_NUMERICHOST
#endif
#ifdef AI_NUMERICSERV
#undef AI_NUMERICSERV
#endif
#ifdef AI_V4MAPPED
#undef AI_V4MAPPED
#endif
#ifdef AI_ALL
#undef AI_ALL
#endif
#ifdef AI_ADDRCONFIG
#undef AI_ADDRCONFIG
#endif
#ifdef AI_DEFAULT
#undef AI_DEFAULT
#endif
#ifdef NI_NOFQDN
#undef NI_NOFQDN
#endif
#ifdef NI_NUMERICHOST
#undef NI_NUMERICHOST
#endif
#ifdef NI_NAMEREQD
#undef NI_NAMEREQD
#endif
#ifdef NI_NUMERICSERV
#undef NI_NUMERICSERV
#endif
#ifdef NI_NUMERICSCOPE
#undef NI_NUMERICSCOPE
#endif
#ifdef NI_DGRAM
#undef NI_DGRAM
#endif
#ifdef NI_MAXHOST
#undef NI_MAXHOST
#endif
#ifdef NI_MAXSERV
#undef NI_MAXSERV
#endif
/*
* Fake struct and function names.
* <netdb.h> might declares all or some of them.
*/
#if defined(HAVE_GETADDRINFO) || defined(HAVE_GETNAMEINFO)
#define addrinfo my_addrinfo
#define gai_strerror my_gai_strerror
#define freeaddrinfo my_freeaddrinfo
#define getaddrinfo my_getaddrinfo
#define getnameinfo my_getnameinfo
#endif
/********************************************************************/
/*
* Error codes.
*/
#define EAI_ADDRFAMILY 1
#define EAI_AGAIN 2
#define EAI_BADFLAGS 3
#define EAI_FAIL 4
#define EAI_FAMILY 5
#define EAI_MEMORY 6
#define EAI_NONAME 7
#define EAI_OVERFLOW 8
#define EAI_SERVICE 9
#define EAI_SOCKTYPE 10
#define EAI_SYSTEM 11
/*
* Flags for getaddrinfo().
*/
#define AI_ADDRCONFIG 0x0001
#define AI_ALL 0x0002
#define AI_CANONNAME 0x0004
#define AI_NUMERICHOST 0x0008
#define AI_NUMERICSERV 0x0010
#define AI_PASSIVE 0x0020
#define AI_V4MAPPED 0x0040
#define AI_DEFAULT (AI_V4MAPPED | AI_ADDRCONFIG)
/*
* Flags for getnameinfo().
*/
#define NI_DGRAM 0x0001
#define NI_NAMEREQD 0x0002
#define NI_NOFQDN 0x0004
#define NI_NUMERICHOST 0x0008
#define NI_NUMERICSCOPE 0x0010
#define NI_NUMERICSERV 0x0020
/*
* Maximum length of FQDN and servie name for getnameinfo().
*/
#define NI_MAXHOST 1025
#define NI_MAXSERV 32
/*
* Address families and Protocol families.
*/
#ifndef AF_UNSPEC
#define AF_UNSPEC AF_INET
#endif
#ifndef PF_UNSPEC
#define PF_UNSPEC PF_INET
#endif
/*
* struct addrinfo.
*/
struct addrinfo {
int ai_flags;
int ai_family;
int ai_socktype;
int ai_protocol;
socklen_t ai_addrlen;
char *ai_canonname;
struct sockaddr *ai_addr;
struct addrinfo *ai_next;
};
/*
* Functions.
*/
#ifdef __STDC__
const char *gai_strerror(int);
void freeaddrinfo(struct addrinfo *);
int getaddrinfo(const char *, const char *, const struct addrinfo *,
struct addrinfo **);
int getnameinfo(const struct sockaddr *, socklen_t, char *,
socklen_t, char *, socklen_t, int);
#else
const char *gai_strerror();
void freeaddrinfo();
int getaddrinfo();
int getnameinfo();
#endif
#endif /* not GETADDRINFO_H */