fortify-headers

standalone fortify-source implementation
git clone git://git.2f30.org/fortify-headers
Log | Files | Refs | README | LICENSE

socket.h (2334B)

      1 /*
      2  * Copyright (C) 2015-2016 Dimitris Papastamos <sin@2f30.org>
      3  * Copyright (C) 2022 q66 <q66@chimera-linux.org>
      4  *
      5  * Permission to use, copy, modify, and/or distribute this software for any
      6  * purpose with or without fee is hereby granted.
      7  *
      8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
      9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     15  */
     16 
     17 #ifndef _FORTIFY_SYS_SOCKET_H
     18 #define _FORTIFY_SYS_SOCKET_H
     19 
     20 #if !defined(__cplusplus) && !defined(__clang__)
     21 __extension__
     22 #endif
     23 #include_next <sys/socket.h>
     24 
     25 #if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
     26 #include "../fortify-headers.h"
     27 
     28 #ifdef __cplusplus
     29 extern "C" {
     30 #endif
     31 
     32 #undef recv
     33 #undef recvfrom
     34 #undef send
     35 #undef sendto
     36 
     37 _FORTIFY_FN(recv) ssize_t recv(int __f, void * _FORTIFY_POS0 __s, size_t __n,
     38                                int __fl)
     39 {
     40 	size_t __b = __bos(__s, 0);
     41 
     42 	if (__n > __b)
     43 		__builtin_trap();
     44 	return __orig_recv(__f, __s, __n, __fl);
     45 }
     46 
     47 _FORTIFY_FN(recvfrom) ssize_t recvfrom(int __f, void * _FORTIFY_POS0 __s,
     48                                        size_t __n, int __fl,
     49                                        struct sockaddr *__a, socklen_t *__l)
     50 {
     51 	size_t __b = __bos(__s, 0);
     52 
     53 	if (__n > __b)
     54 		__builtin_trap();
     55 	return __orig_recvfrom(__f, __s, __n, __fl, __a, __l);
     56 }
     57 
     58 _FORTIFY_FN(send) ssize_t send(int __f, const void * _FORTIFY_POS0 __s,
     59                                size_t __n, int __fl)
     60 {
     61 	size_t __b = __bos(__s, 0);
     62 
     63 	if (__n > __b)
     64 		__builtin_trap();
     65 	return __orig_send(__f, __s, __n, __fl);
     66 }
     67 
     68 _FORTIFY_FN(sendto) ssize_t sendto(int __f, const void * _FORTIFY_POS0 __s,
     69                                    size_t __n, int __fl,
     70                                    const struct sockaddr *__a, socklen_t __l)
     71 {
     72 	size_t __b = __bos(__s, 0);
     73 
     74 	if (__n > __b)
     75 		__builtin_trap();
     76 	return __orig_sendto(__f, __s, __n, __fl, __a, __l);
     77 }
     78 
     79 #ifdef __cplusplus
     80 }
     81 #endif
     82 
     83 #endif
     84 
     85 #endif