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Imported Upstream version 1.4.16+git20130902

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This commit is contained in:
Jan Wagner 2013-11-26 23:59:47 +01:00
parent e76be63abf
commit e70fb8c051
517 changed files with 44015 additions and 43295 deletions
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62
gl/inet_ntop.c
View file

@ -1,6 +1,6 @@
/* inet_ntop.c -- convert IPv4 and IPv6 addresses from binary to text form
Copyright (C) 2005-2006, 2008-2010 Free Software Foundation, Inc.
Copyright (C) 2005-2006, 2008-2013 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -13,8 +13,7 @@
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
along with this program; if not, see <http://www.gnu.org/licenses/>. */
/*
* Copyright (c) 1996-1999 by Internet Software Consortium.
@ -38,30 +37,53 @@
/* Specification. */
#include <arpa/inet.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
/* Use this to suppress gcc's "...may be used before initialized" warnings.
Beware: The Code argument must not contain commas. */
#ifndef IF_LINT
# ifdef lint
# define IF_LINT(Code) Code
# else
# define IF_LINT(Code) /* empty */
# endif
#endif
#define NS_IN6ADDRSZ 16
#define NS_INT16SZ 2
#if HAVE_DECL_INET_NTOP
# undef inet_ntop
const char *
rpl_inet_ntop (int af, const void *restrict src,
char *restrict dst, socklen_t cnt)
{
return inet_ntop (af, src, dst, cnt);
}
#else
# include <stdio.h>
# include <string.h>
# include <errno.h>
# define NS_IN6ADDRSZ 16
# define NS_INT16SZ 2
/*
* WARNING: Don't even consider trying to compile this on a system where
* sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
*/
typedef int verify_int_size[2 * sizeof (int) - 7];
typedef int verify_int_size[4 <= sizeof (int) ? 1 : -1];
static const char *inet_ntop4 (const unsigned char *src, char *dst, socklen_t size);
#if HAVE_IPV6
# if HAVE_IPV6
static const char *inet_ntop6 (const unsigned char *src, char *dst, socklen_t size);
#endif
# endif
/* char *
* inet_ntop(af, src, dst, size)
* convert a network format address to presentation format.
* return:
* pointer to presentation format address (`dst'), or NULL (see errno).
* pointer to presentation format address ('dst'), or NULL (see errno).
* author:
* Paul Vixie, 1996.
*/
@ -71,15 +93,15 @@ inet_ntop (int af, const void *restrict src,
{
switch (af)
{
#if HAVE_IPV4
# if HAVE_IPV4
case AF_INET:
return (inet_ntop4 (src, dst, cnt));
#endif
# endif
#if HAVE_IPV6
# if HAVE_IPV6
case AF_INET6:
return (inet_ntop6 (src, dst, cnt));
#endif
# endif
default:
errno = EAFNOSUPPORT;
@ -92,7 +114,7 @@ inet_ntop (int af, const void *restrict src,
* inet_ntop4(src, dst, size)
* format an IPv4 address
* return:
* `dst' (as a const)
* 'dst' (as a const)
* notes:
* (1) uses no statics
* (2) takes a u_char* not an in_addr as input
@ -118,7 +140,7 @@ inet_ntop4 (const unsigned char *src, char *dst, socklen_t size)
return strcpy (dst, tmp);
}
#if HAVE_IPV6
# if HAVE_IPV6
/* const char *
* inet_ntop6(src, dst, size)
@ -154,6 +176,8 @@ inet_ntop6 (const unsigned char *src, char *dst, socklen_t size)
words[i / 2] = (src[i] << 8) | src[i + 1];
best.base = -1;
cur.base = -1;
IF_LINT(best.len = 0);
IF_LINT(cur.len = 0);
for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++)
{
if (words[i] == 0)
@ -231,4 +255,6 @@ inet_ntop6 (const unsigned char *src, char *dst, socklen_t size)
return strcpy (dst, tmp);
}
# endif
#endif