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IPv6 infrastructure support

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Add autoconf rules to detect IPv6 availability and some of the neeeded
support functions. Add stubs for getaddrinfo and inet_ntop.
You can disable IPv6 at compile time with
./configure --without-ipv6

Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Karsten Keil 2008-07-23 17:05:24 +02:00 • committed by H. Peter Anvin
parent 57ca281980
commit 7fe0fb941c
5 changed files with 355 additions and 6 deletions
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46
config.h
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@ -106,6 +106,9 @@
#endif
#endif
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_GETOPT_H
#include <getopt.h>
@ -301,6 +304,49 @@ int dup2(int, int);
int daemon(int, int);
#endif
#ifndef HAVE_GETADDRINFO
#ifndef HAVE_STRUCT_ADDRINFO
struct addrinfo {
int ai_flags;
int ai_family;
int ai_socktype;
int ai_protocol;
size_t ai_addrlen;
struct sockaddr *ai_addr;
char *ai_canonname;
struct addrinfo *ai_next;
};
#endif
int getaddrinfo(const char *, const char *, const struct addrinfo *,
struct addrinfo **);
void freeaddrinfo(struct addrinfo *);
const char *gai_strerror(int);
#ifndef AI_CANONNAME
#define AI_CANONNAME 0x0002 /* Request for canonical name. */
#endif
#ifndef EAI_NONAME
#define EAI_NONAME -2 /* NAME or SERVICE is unknown. */
#endif
#ifndef EAI_ADDRFAMILY
#define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */
#endif
#ifndef EAI_MEMORY
#define EAI_MEMORY -10 /* Memory allocation failure. */
#endif
#ifndef EAI_SYSTEM
#define EAI_SYSTEM -11 /* System error returned in rrno'. */
#endif
#endif
#ifndef HAVE_INET_NTOP
const char *inet_ntop(int, const void *, char *, socklen_t);
#ifndef INET6_ADDRSTRLEN
#define INET6_ADDRSTRLEN 48
#endif
#endif
/* tftp-hpa version and configuration strings */
#include "version.h"