mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
39ca997ab3
Rename the identifier sz to __sz everywhere.
Fixes: a643f60c53 ("Make sure that the fortified function conditionals are constant")
84 lines
3.5 KiB
C
84 lines
3.5 KiB
C
/* Checking macros for socket functions.
|
|
Copyright (C) 2005-2024 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/>. */
|
|
|
|
#ifndef _SYS_SOCKET_H
|
|
# error "Never include <bits/socket2.h> directly; use <sys/socket.h> instead."
|
|
#endif
|
|
|
|
extern ssize_t __recv_chk (int __fd, void *__buf, size_t __n, size_t __buflen,
|
|
int __flags);
|
|
extern ssize_t __REDIRECT (__recv_alias, (int __fd, void *__buf, size_t __n,
|
|
int __flags), recv);
|
|
extern ssize_t __REDIRECT (__recv_chk_warn,
|
|
(int __fd, void *__buf, size_t __n, size_t __buflen,
|
|
int __flags), __recv_chk)
|
|
__warnattr ("recv called with bigger length than size of destination "
|
|
"buffer");
|
|
|
|
__fortify_function __attribute_overloadable__ ssize_t
|
|
recv (int __fd, __fortify_clang_overload_arg0 (void *, ,__buf), size_t __n,
|
|
int __flags)
|
|
__fortify_clang_warning_only_if_bos0_lt (__n, __buf,
|
|
"recv called with bigger length than "
|
|
"size of destination buffer")
|
|
{
|
|
size_t __sz = __glibc_objsize0 (__buf);
|
|
if (__glibc_safe_or_unknown_len (__n, sizeof (char), __sz))
|
|
return __recv_alias (__fd, __buf, __n, __flags);
|
|
#if !__fortify_use_clang
|
|
if (__glibc_unsafe_len (__n, sizeof (char), __sz))
|
|
return __recv_chk_warn (__fd, __buf, __n, __sz, __flags);
|
|
#endif
|
|
return __recv_chk (__fd, __buf, __n, __sz, __flags);
|
|
}
|
|
|
|
extern ssize_t __recvfrom_chk (int __fd, void *__restrict __buf, size_t __n,
|
|
size_t __buflen, int __flags,
|
|
__SOCKADDR_ARG __addr,
|
|
socklen_t *__restrict __addr_len);
|
|
extern ssize_t __REDIRECT (__recvfrom_alias,
|
|
(int __fd, void *__restrict __buf, size_t __n,
|
|
int __flags, __SOCKADDR_ARG __addr,
|
|
socklen_t *__restrict __addr_len), recvfrom);
|
|
extern ssize_t __REDIRECT (__recvfrom_chk_warn,
|
|
(int __fd, void *__restrict __buf, size_t __n,
|
|
size_t __buflen, int __flags,
|
|
__SOCKADDR_ARG __addr,
|
|
socklen_t *__restrict __addr_len), __recvfrom_chk)
|
|
__warnattr ("recvfrom called with bigger length than size of "
|
|
"destination buffer");
|
|
|
|
__fortify_function __attribute_overloadable__ ssize_t
|
|
recvfrom (int __fd, __fortify_clang_overload_arg0 (void *, __restrict, __buf),
|
|
size_t __n, int __flags,
|
|
__SOCKADDR_ARG __addr, socklen_t *__restrict __addr_len)
|
|
__fortify_clang_warning_only_if_bos0_lt (__n, __buf,
|
|
"recvfrom called with bigger length "
|
|
"than size of destination buffer")
|
|
{
|
|
size_t __sz = __glibc_objsize0 (__buf);
|
|
if (__glibc_safe_or_unknown_len (__n, sizeof (char), __sz))
|
|
return __recvfrom_alias (__fd, __buf, __n, __flags, __addr, __addr_len);
|
|
#if !__fortify_use_clang
|
|
if (__glibc_unsafe_len (__n, sizeof (char), __sz))
|
|
return __recvfrom_chk_warn (__fd, __buf, __n, __sz, __flags, __addr,
|
|
__addr_len);
|
|
#endif
|
|
return __recvfrom_chk (__fd, __buf, __n, __sz, __flags, __addr, __addr_len);
|
|
}
|