mirror of https://code.videolan.org/videolan/vlc
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
/*****************************************************************************
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* inet_pton.c: POSIX/IETF inet_pton() and inet_ntop() replacements
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*****************************************************************************
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* Copyright © 2011 Rémi Denis-Courmont
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#include <errno.h>
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#include <sys/types.h>
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#ifdef HAVE_SYS_SOCKET_H
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# include <sys/socket.h>
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#elif defined(_WIN32)
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# include <winsock2.h>
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# include <ws2tcpip.h>
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#endif
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int inet_pton (int af, const char *src, void *dst)
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{
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unsigned char *b = dst;
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switch (af)
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{
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case AF_INET:
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return sscanf (src, "%hhu.%hhu.%hhu.%hhu",
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b + 0, b + 1, b + 2, b + 3) == 4;
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}
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errno = EAFNOSUPPORT;
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return -1;
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}
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const char *inet_ntop (int af, const void *src, char *dst, socklen_t len)
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{
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const unsigned char *b = src;
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switch (af)
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{
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case AF_INET:
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if (snprintf (dst, len, "%hhu.%hhu.%hhu.%hhu",
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b[0], b[1], b[2], b[3]) >= len)
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{
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errno = ENOSPC;
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return NULL;
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}
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return dst;
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}
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errno = EAFNOSUPPORT;
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return NULL;
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}
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