diff options
Diffstat (limited to 'gl/inet_ntop.c')
| -rw-r--r-- | gl/inet_ntop.c | 62 |
1 files changed, 44 insertions, 18 deletions
diff --git a/gl/inet_ntop.c b/gl/inet_ntop.c index baaa23f8..fdfd21dc 100644 --- a/gl/inet_ntop.c +++ b/gl/inet_ntop.c @@ -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 + +#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); +} -#define NS_IN6ADDRSZ 16 -#define NS_INT16SZ 2 +#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 |