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- //
- // Copyright 2026 Aarav Ravindra Kharade
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- //
- /* Checking macros for socket functions.
- Copyright (C) 2005-2026 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);
- }
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