mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-28 23:34:53 +03:00
02c17c8c14
Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
107 lines
2.9 KiB
C
107 lines
2.9 KiB
C
/* Copyright (C) 2015-2021 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library 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.
|
|
|
|
The GNU C Library 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 the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <sys/socket.h>
|
|
#include <time.h>
|
|
#include <sysdep.h>
|
|
#include <socketcall.h>
|
|
#include <socket-constants-time64.h>
|
|
|
|
static int
|
|
getsockopt_syscall (int fd, int level, int optname, void *optval,
|
|
socklen_t *len)
|
|
{
|
|
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
|
|
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
|
|
#else
|
|
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
|
|
#endif
|
|
}
|
|
|
|
#ifndef __ASSUME_TIME64_SYSCALLS
|
|
static int
|
|
getsockopt32 (int fd, int level, int optname, void *optval,
|
|
socklen_t *len)
|
|
{
|
|
int r = -1;
|
|
|
|
if (level != SOL_SOCKET)
|
|
return r;
|
|
|
|
switch (optname)
|
|
{
|
|
case COMPAT_SO_RCVTIMEO_NEW:
|
|
case COMPAT_SO_SNDTIMEO_NEW:
|
|
{
|
|
if (optname == COMPAT_SO_RCVTIMEO_NEW)
|
|
optname = COMPAT_SO_RCVTIMEO_OLD;
|
|
if (optname == COMPAT_SO_SNDTIMEO_NEW)
|
|
optname = COMPAT_SO_SNDTIMEO_OLD;
|
|
|
|
struct __timeval32 tv32;
|
|
r = getsockopt_syscall (fd, level, optname, &tv32,
|
|
(socklen_t[]) { sizeof tv32 });
|
|
if (r < 0)
|
|
break;
|
|
|
|
/* POSIX states that if the size of the option value is greater than
|
|
then option length, the option value argument shall be silently
|
|
truncated. */
|
|
if (*len >= sizeof (struct __timeval64))
|
|
{
|
|
struct __timeval64 *tv64 = (struct __timeval64 *) optval;
|
|
*tv64 = valid_timeval32_to_timeval64 (tv32);
|
|
*len = sizeof (*tv64);
|
|
}
|
|
else
|
|
memcpy (optval, &tv32, sizeof tv32);
|
|
}
|
|
break;
|
|
|
|
case COMPAT_SO_TIMESTAMP_NEW:
|
|
case COMPAT_SO_TIMESTAMPNS_NEW:
|
|
{
|
|
if (optname == COMPAT_SO_TIMESTAMP_NEW)
|
|
optname = COMPAT_SO_TIMESTAMP_OLD;
|
|
if (optname == COMPAT_SO_TIMESTAMPNS_NEW)
|
|
optname = COMPAT_SO_TIMESTAMPNS_OLD;
|
|
r = getsockopt_syscall (fd, level, optname, optval, len);
|
|
}
|
|
break;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
#endif
|
|
|
|
int
|
|
__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
|
|
{
|
|
int r = getsockopt_syscall (fd, level, optname, optval, len);
|
|
|
|
#ifndef __ASSUME_TIME64_SYSCALLS
|
|
if (r == -1 && errno == ENOPROTOOPT)
|
|
r = getsockopt32 (fd, level, optname, optval, len);
|
|
#endif
|
|
|
|
return r;
|
|
}
|
|
weak_alias (__getsockopt, getsockopt)
|
|
#if __TIMESIZE != 64
|
|
weak_alias (__getsockopt, __getsockopt64)
|
|
#endif
|