diff options
Diffstat (limited to '3rdParty/CAres/src/inet_ntop.c')
-rw-r--r-- | 3rdParty/CAres/src/inet_ntop.c | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/3rdParty/CAres/src/inet_ntop.c b/3rdParty/CAres/src/inet_ntop.c deleted file mode 100644 index 5b0d097..0000000 --- a/3rdParty/CAres/src/inet_ntop.c +++ /dev/null @@ -1,232 +0,0 @@ -/* $Id: inet_ntop.c,v 1.12 2009-11-02 11:55:54 yangtse Exp $ */ - -/* Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#include "ares_setup.h" - -#ifdef HAVE_SYS_SOCKET_H -# include <sys/socket.h> -#endif -#ifdef HAVE_NETINET_IN_H -# include <netinet/in.h> -#endif -#ifdef HAVE_ARPA_INET_H -# include <arpa/inet.h> -#endif -#ifdef HAVE_ARPA_NAMESER_H -# include <arpa/nameser.h> -#else -# include "nameser.h" -#endif -#ifdef HAVE_ARPA_NAMESER_COMPAT_H -# include <arpa/nameser_compat.h> -#endif - -#include <ctype.h> -#include <errno.h> -#include <stdio.h> -#include <string.h> -#include <stdlib.h> - -#include "ares_ipv6.h" -#include "inet_ntop.h" - - -#ifndef HAVE_INET_NTOP - -#ifdef SPRINTF_CHAR -# define SPRINTF(x) strlen(sprintf/**/x) -#else -# define SPRINTF(x) ((size_t)sprintf x) -#endif - -/* - * 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. - */ - -static const char *inet_ntop4(const unsigned char *src, char *dst, size_t size); -static const char *inet_ntop6(const unsigned char *src, char *dst, size_t size); - -/* 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). - * note: - * On Windows we store the error in the thread errno, not - * in the winsock error code. This is to avoid loosing the - * actual last winsock error. So use macro ERRNO to fetch the - * errno this funtion sets when returning NULL, not SOCKERRNO. - * author: - * Paul Vixie, 1996. - */ -const char * -ares_inet_ntop(int af, const void *src, char *dst, size_t size) -{ - switch (af) - { - case AF_INET: - return (inet_ntop4(src, dst, size)); - case AF_INET6: - return (inet_ntop6(src, dst, size)); - default: - SET_ERRNO(EAFNOSUPPORT); - return (NULL); - } - /* NOTREACHED */ -} - -/* const char * - * inet_ntop4(src, dst, size) - * format an IPv4 address, more or less like inet_ntoa() - * return: - * `dst' (as a const) - * notes: - * (1) uses no statics - * (2) takes a unsigned char* not an in_addr as input - * author: - * Paul Vixie, 1996. - */ -static const char * -inet_ntop4(const unsigned char *src, char *dst, size_t size) -{ - static const char fmt[] = "%u.%u.%u.%u"; - char tmp[sizeof "255.255.255.255"]; - - if (SPRINTF((tmp, fmt, src[0], src[1], src[2], src[3])) > size) - { - SET_ERRNO(ENOSPC); - return (NULL); - } - strcpy(dst, tmp); - return (dst); -} - -/* const char * - * inet_ntop6(src, dst, size) - * convert IPv6 binary address into presentation (printable) format - * author: - * Paul Vixie, 1996. - */ -static const char * -inet_ntop6(const unsigned char *src, char *dst, size_t size) -{ - /* - * Note that int32_t and int16_t need only be "at least" large enough - * to contain a value of the specified size. On some systems, like - * Crays, there is no such thing as an integer variable with 16 bits. - * Keep this in mind if you think this function should have been coded - * to use pointer overlays. All the world's not a VAX. - */ - char tmp[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")]; - char *tp; - struct { - long base; - long len; - } best, cur; - unsigned long words[NS_IN6ADDRSZ / NS_INT16SZ]; - int i; - - /* - * Preprocess: - * Copy the input (bytewise) array into a wordwise array. - * Find the longest run of 0x00's in src[] for :: shorthanding. - */ - memset(words, '\0', sizeof(words)); - for (i = 0; i < NS_IN6ADDRSZ; i++) - words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3)); - - best.base = -1; - cur.base = -1; - best.len = 0; - cur.len = 0; - - for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) - { - if (words[i] == 0) - { - if (cur.base == -1) - cur.base = i, cur.len = 1; - else - cur.len++; - } - else - { - if (cur.base != -1) - { - if (best.base == -1 || cur.len > best.len) - best = cur; - cur.base = -1; - } - } - } - if (cur.base != -1) - { - if (best.base == -1 || cur.len > best.len) - best = cur; - } - if (best.base != -1 && best.len < 2) - best.base = -1; - - /* - * Format the result. - */ - tp = tmp; - for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) - { - /* Are we inside the best run of 0x00's? */ - if (best.base != -1 && i >= best.base && - i < (best.base + best.len)) - { - if (i == best.base) - *tp++ = ':'; - continue; - } - /* Are we following an initial run of 0x00s or any real hex? */ - if (i != 0) - *tp++ = ':'; - /* Is this address an encapsulated IPv4? */ - if (i == 6 && best.base == 0 && - (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) - { - if (!inet_ntop4(src+12, tp, sizeof(tmp) - (tp - tmp))) - return (NULL); - tp += strlen(tp); - break; - } - tp += SPRINTF((tp, "%lx", words[i])); - } - - /* Was it a trailing run of 0x00's? */ - if (best.base != -1 && (best.base + best.len) == (NS_IN6ADDRSZ / NS_INT16SZ)) - *tp++ = ':'; - *tp++ = '\0'; - - /* - * Check for overflow, copy, and we're done. - */ - if ((size_t)(tp - tmp) > size) - { - SET_ERRNO(ENOSPC); - return (NULL); - } - strcpy(dst, tmp); - return (dst); -} -#endif - |