1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2019 Kyle Evans <kevans@FreeBSD.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/types.h>
29
30 #include <stdarg.h>
31 #include <stdlib.h>
32
33 /* Signatures grabbed from LSB Core Specification 4.1 */
34 void *__memcpy_chk(void *dst, const void *src, size_t len,
35 size_t dstlen);
36 void *__memset_chk(void *dst, int c, size_t len, size_t dstlen);
37 int __snprintf_chk(char *str, size_t maxlen, int flag, size_t strlen,
38 const char *fmt, ...);
39 int __sprintf_chk(char *str, int flag, size_t strlen, const char *fmt, ...);
40 char *__stpcpy_chk(char *dst, const char *src, size_t dstlen);
41 char *__strcat_chk(char *dst, const char *src, size_t dstlen);
42 char *__strcpy_chk(char *dst, const char *src, size_t dstlen);
43 char *__strncat_chk(char *dst, const char *src, size_t len, size_t dstlen);
44 char *__strncpy_chk(char *dst, const char *src, size_t len, size_t dstlen);
45 int __vsnprintf_chk(char *str, size_t size, int flags, size_t len,
46 const char *format, va_list ap);
47 int __vsprintf_chk(char *str, int flag, size_t slen, const char *format,
48 va_list ap);
49
50 #define ABORT() abort2("_FORTIFY_SOURCE not supported", 0, NULL)
51
52 void *
__memcpy_chk(void * dst,const void * src,size_t len,size_t dstlen)53 __memcpy_chk(void *dst, const void *src, size_t len,
54 size_t dstlen)
55 {
56
57 ABORT();
58 }
59
60 void *
__memset_chk(void * dst,int c,size_t len,size_t dstlen)61 __memset_chk(void *dst, int c, size_t len, size_t dstlen)
62 {
63
64 ABORT();
65 }
66
67 int
__snprintf_chk(char * str,size_t maxlen,int flag,size_t strlen,const char * fmt,...)68 __snprintf_chk(char *str, size_t maxlen, int flag, size_t strlen,
69 const char *fmt, ...)
70 {
71
72 ABORT();
73 }
74
75 int
__sprintf_chk(char * str,int flag,size_t strlen,const char * fmt,...)76 __sprintf_chk(char *str, int flag, size_t strlen, const char *fmt, ...)
77 {
78
79 ABORT();
80 }
81
82 char *
__stpcpy_chk(char * dst,const char * src,size_t dstlen)83 __stpcpy_chk(char *dst, const char *src, size_t dstlen)
84 {
85
86 ABORT();
87 }
88
89 char *
__strcat_chk(char * dst,const char * src,size_t dstlen)90 __strcat_chk(char *dst, const char *src, size_t dstlen)
91 {
92
93 ABORT();
94 }
95
96 char *
__strcpy_chk(char * dst,const char * src,size_t dstlen)97 __strcpy_chk(char *dst, const char *src, size_t dstlen)
98 {
99
100 ABORT();
101 }
102
103 char *
__strncat_chk(char * dst,const char * src,size_t len,size_t dstlen)104 __strncat_chk(char *dst, const char *src, size_t len, size_t dstlen)
105 {
106
107 ABORT();
108 }
109
110 char *
__strncpy_chk(char * dst,const char * src,size_t len,size_t dstlen)111 __strncpy_chk(char *dst, const char *src, size_t len, size_t dstlen)
112 {
113
114 ABORT();
115 }
116
117 int
__vsnprintf_chk(char * str,size_t size,int flags,size_t len,const char * format,va_list ap)118 __vsnprintf_chk(char *str, size_t size, int flags, size_t len,
119 const char *format, va_list ap)
120 {
121
122 ABORT();
123 }
124
125 int
__vsprintf_chk(char * str,int flag,size_t slen,const char * format,va_list ap)126 __vsprintf_chk(char *str, int flag, size_t slen, const char *format,
127 va_list ap)
128 {
129
130 ABORT();
131 }
132