mirror of
https://github.com/videolan/vlc.git
synced 2024-11-27 03:47:46 +08:00
4e6f2c60a3
It's officially supported by the Windows SDK. Callers of these POSIX API's don't expect to check errno is WSAEAFNOSUPPORT.
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
/*****************************************************************************
|
|
* inet_pton.c: POSIX/IETF inet_pton() and inet_ntop() replacements
|
|
*****************************************************************************
|
|
* Copyright © 2011 Rémi Denis-Courmont
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 2.1 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser 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.
|
|
*****************************************************************************/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
|
|
#include <sys/types.h>
|
|
#ifdef HAVE_SYS_SOCKET_H
|
|
# include <sys/socket.h>
|
|
#elif defined(_WIN32)
|
|
# include <winsock2.h>
|
|
# include <ws2tcpip.h>
|
|
#endif
|
|
|
|
int inet_pton (int af, const char *src, void *dst)
|
|
{
|
|
unsigned char *b = dst;
|
|
|
|
switch (af)
|
|
{
|
|
case AF_INET:
|
|
return sscanf (src, "%hhu.%hhu.%hhu.%hhu",
|
|
b + 0, b + 1, b + 2, b + 3) == 4;
|
|
}
|
|
errno = EAFNOSUPPORT;
|
|
return -1;
|
|
}
|
|
|
|
const char *inet_ntop (int af, const void *src, char *dst, socklen_t len)
|
|
{
|
|
const unsigned char *b = src;
|
|
|
|
switch (af)
|
|
{
|
|
case AF_INET:
|
|
if (snprintf (dst, len, "%hhu.%hhu.%hhu.%hhu",
|
|
b[0], b[1], b[2], b[3]) >= len)
|
|
{
|
|
errno = ENOSPC;
|
|
return NULL;
|
|
}
|
|
return dst;
|
|
}
|
|
errno = EAFNOSUPPORT;
|
|
return NULL;
|
|
}
|