1 /* $NetBSD: stdio.h,v 1.5 2011/07/17 20:54:34 joerg Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #ifndef _SSP_STDIO_H_ 32 #define _SSP_STDIO_H_ 33 34 #include <ssp/ssp.h> 35 36 __BEGIN_DECLS 37 int __sprintf_chk(char *__restrict, int, size_t, const char *__restrict, ...) 38 __printflike(4, 5); 39 int __vsprintf_chk(char *__restrict, int, size_t, const char *__restrict, 40 va_list) 41 __printflike(4, 0); 42 int __snprintf_chk(char *__restrict, size_t, int, size_t, 43 const char *__restrict, ...) 44 __printflike(5, 6); 45 int __vsnprintf_chk(char *__restrict, size_t, int, size_t, 46 const char *__restrict, va_list) 47 __printflike(5, 0); 48 char *__gets_chk(char *, size_t); 49 __END_DECLS 50 51 #if __SSP_FORTIFY_LEVEL > 0 52 53 54 #define sprintf(str, ...) \ 55 __builtin___sprintf_chk(str, 0, __ssp_bos(str), __VA_ARGS__) 56 57 #define vsprintf(str, fmt, ap) \ 58 __builtin___vsprintf_chk(str, 0, __ssp_bos(str), fmt, ap) 59 60 #define snprintf(str, len, ...) \ 61 __builtin___snprintf_chk(str, len, 0, __ssp_bos(str), __VA_ARGS__) 62 63 #define vsnprintf(str, len, fmt, ap) \ 64 __builtin___vsnprintf_chk(str, len, 0, __ssp_bos(str), fmt, ap) 65 66 #define gets(str) \ 67 __gets_chk(str, __ssp_bos(str)) 68 69 __ssp_decl(char *, fgets, (char *__restrict __buf, int __len, FILE *__fp)) 70 { 71 if (__len > 0) 72 __ssp_check(__buf, (size_t)__len, __ssp_bos); 73 return __ssp_real_fgets(__buf, __len, __fp); 74 } 75 76 #if __GNU_VISIBLE 77 __ssp_decl(char *, fgets_unlocked, (char *__restrict __buf, int __len, FILE *__fp)) 78 { 79 if (__len > 0) 80 __ssp_check(__buf, (size_t)__len, __ssp_bos); 81 return __ssp_real_fgets_unlocked(__buf, __len, __fp); 82 } 83 #endif /* __GNU_VISIBLE */ 84 85 __ssp_decl(size_t, fread, (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __fp)) 86 { 87 __ssp_check(__ptr, __size * __n, __ssp_bos0); 88 return __ssp_real_fread(__ptr, __size, __n, __fp); 89 } 90 91 #if __MISC_VISIBLE 92 __ssp_decl(size_t, fread_unlocked, (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __fp)) 93 { 94 __ssp_check(__ptr, __size * __n, __ssp_bos0); 95 return __ssp_real_fread_unlocked(__ptr, __size, __n, __fp); 96 } 97 #endif /* __MISC_VISIBLE */ 98 99 #endif /* __SSP_FORTIFY_LEVEL > 0 */ 100 101 #endif /* _SSP_STDIO_H_ */ 102
