1 /* $OpenBSD: libkern.h,v 1.34 2014/07/13 23:49:40 uebayasi Exp $ */ 2 /* $NetBSD: libkern.h,v 1.7 1996/03/14 18:52:08 christos Exp $ */ 3 4 /*- 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)libkern.h 8.1 (Berkeley) 6/10/93 33 */ 34 35 #ifndef __LIBKERN_H__ 36 #define __LIBKERN_H__ 37 38 #include <sys/types.h> 39 40 #ifndef LIBKERN_INLINE 41 #define LIBKERN_INLINE static __inline 42 #define LIBKERN_BODY 43 #endif 44 45 46 LIBKERN_INLINE int imax(int, int); 47 LIBKERN_INLINE int imin(int, int); 48 LIBKERN_INLINE u_int max(u_int, u_int); 49 LIBKERN_INLINE u_int min(u_int, u_int); 50 LIBKERN_INLINE long lmax(long, long); 51 LIBKERN_INLINE long lmin(long, long); 52 LIBKERN_INLINE u_long ulmax(u_long, u_long); 53 LIBKERN_INLINE u_long ulmin(u_long, u_long); 54 LIBKERN_INLINE int abs(int); 55 56 #ifdef LIBKERN_BODY 57 LIBKERN_INLINE int 58 imax(int a, int b) 59 { 60 return (a > b ? a : b); 61 } 62 LIBKERN_INLINE int 63 imin(int a, int b) 64 { 65 return (a < b ? a : b); 66 } 67 LIBKERN_INLINE long 68 lmax(long a, long b) 69 { 70 return (a > b ? a : b); 71 } 72 LIBKERN_INLINE long 73 lmin(long a, long b) 74 { 75 return (a < b ? a : b); 76 } 77 LIBKERN_INLINE u_int 78 max(u_int a, u_int b) 79 { 80 return (a > b ? a : b); 81 } 82 LIBKERN_INLINE u_int 83 min(u_int a, u_int b) 84 { 85 return (a < b ? a : b); 86 } 87 LIBKERN_INLINE u_long 88 ulmax(u_long a, u_long b) 89 { 90 return (a > b ? a : b); 91 } 92 LIBKERN_INLINE u_long 93 ulmin(u_long a, u_long b) 94 { 95 return (a < b ? a : b); 96 } 97 98 LIBKERN_INLINE int 99 abs(int j) 100 { 101 return(j < 0 ? -j : j); 102 } 103 #endif 104 105 #ifdef NDEBUG /* tradition! */ 106 #define assert(e) ((void)0) 107 #else 108 #ifdef __STDC__ 109 #define assert(e) ((e) ? (void)0 : \ 110 __assert("", __FILE__, __LINE__, #e)) 111 #else 112 #define assert(e) ((e) ? (void)0 : \ 113 __assert("", __FILE__, __LINE__, "e")) 114 #endif 115 #endif 116 117 #define __KASSERTSTR "kernel %sassertion \"%s\" failed: file \"%s\", line %d" 118 119 #ifndef DIAGNOSTIC 120 #define KASSERTMSG(e, msg, ...) ((void)0) 121 #define KASSERT(e) ((void)0) 122 #else 123 #ifdef __STDC__ 124 #define KASSERTMSG(e, msg, ...) ((e) ? (void)0 : \ 125 panic(__KASSERTSTR " " msg, "diagnostic ", #e, \ 126 __FILE__, __LINE__, ## __VA_ARGS__)) 127 #define KASSERT(e) ((e) ? (void)0 : \ 128 __assert("diagnostic ", __FILE__, __LINE__, #e)) 129 #else 130 #define KASSERTMSG(e, msg, ...) ((e) ? (void)0 : \ 131 panic(__KASSERTSTR " " msg, "diagnostic ", "e", \ 132 __FILE__, __LINE__, ## __VA_ARGS__)) 133 #define KASSERT(e) ((e) ? (void)0 : \ 134 __assert("diagnostic ", __FILE__, __LINE__, "e")) 135 #endif 136 #endif 137 138 #ifndef DEBUG 139 #define KDASSERTMSG(e, msg, ...) ((void)0) 140 #define KDASSERT(e) ((void)0) 141 #else 142 #ifdef __STDC__ 143 #define KDASSERTMSG(e, msg, ...) ((e) ? (void)0 : \ 144 panic(__KASSERTSTR " " msg, "debugging ", #e, \ 145 __FILE__, __LINE__, ## __VA_ARGS__)) 146 #define KDASSERT(e) ((e) ? (void)0 : \ 147 __assert("debugging ", __FILE__, __LINE__, #e)) 148 #else 149 #define KDASSERTMSG(e, msg, ...) ((e) ? (void)0 : \ 150 panic(__KASSERTSTR " " msg, "debugging ", "e", \ 151 __FILE__, __LINE__, ## __VA_ARGS__)) 152 #define KDASSERT(e) ((e) ? (void)0 : \ 153 __assert("debugging ", __FILE__, __LINE__, "e")) 154 #endif 155 #endif 156 157 #define CTASSERT(x) extern char _ctassert[(x) ? 1 : -1 ] \ 158 __attribute__((__unused__)) 159 160 /* Prototypes for non-quad routines. */ 161 void __assert(const char *, const char *, int, const char *) 162 __attribute__ ((__noreturn__)); 163 int bcmp(const void *, const void *, size_t); 164 void bzero(void *, size_t); 165 void explicit_bzero(void *, size_t); 166 int ffs(int); 167 int fls(int); 168 int flsl(long); 169 void *memchr(const void *, int, size_t); 170 int memcmp(const void *, const void *, size_t); 171 void *memset(void *, int c, size_t len); 172 u_int32_t random(void); 173 int scanc(u_int, const u_char *, const u_char [], int); 174 int skpc(int, size_t, u_char *); 175 size_t strlen(const char *); 176 char *strncpy(char *, const char *, size_t) 177 __attribute__ ((__bounded__(__string__,1,3))); 178 size_t strnlen(const char *, size_t); 179 size_t strlcpy(char *, const char *, size_t) 180 __attribute__ ((__bounded__(__string__,1,3))); 181 size_t strlcat(char *, const char *, size_t) 182 __attribute__ ((__bounded__(__string__,1,3))); 183 int strcmp(const char *, const char *); 184 int strncmp(const char *, const char *, size_t); 185 int strncasecmp(const char *, const char *, size_t); 186 int getsn(char *, int); 187 char *strchr(const char *, int); 188 char *strrchr(const char *, int); 189 int timingsafe_bcmp(const void *, const void *, size_t); 190 191 #endif /* __LIBKERN_H__ */ 192