libkern.h revision 1.82.8.5
1 /* $NetBSD: libkern.h,v 1.82.8.5 2014/02/14 18:38:15 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)libkern.h 8.2 (Berkeley) 8/5/94 32 */ 33 34 #ifndef _LIB_LIBKERN_LIBKERN_H_ 35 #define _LIB_LIBKERN_LIBKERN_H_ 36 37 #include <sys/types.h> 38 #include <sys/inttypes.h> 39 #include <sys/null.h> 40 41 #ifndef LIBKERN_INLINE 42 #define LIBKERN_INLINE static __inline 43 #define LIBKERN_BODY 44 #endif 45 46 LIBKERN_INLINE int imax __P((int, int)) __unused; 47 LIBKERN_INLINE int imin __P((int, int)) __unused; 48 LIBKERN_INLINE u_int max __P((u_int, u_int)) __unused; 49 LIBKERN_INLINE u_int min __P((u_int, u_int)) __unused; 50 LIBKERN_INLINE long lmax __P((long, long)) __unused; 51 LIBKERN_INLINE long lmin __P((long, long)) __unused; 52 LIBKERN_INLINE u_long ulmax __P((u_long, u_long)) __unused; 53 LIBKERN_INLINE u_long ulmin __P((u_long, u_long)) __unused; 54 LIBKERN_INLINE int abs __P((int)) __unused; 55 56 LIBKERN_INLINE int isspace __P((int)) __unused; 57 LIBKERN_INLINE int isascii __P((int)) __unused; 58 LIBKERN_INLINE int isupper __P((int)) __unused; 59 LIBKERN_INLINE int islower __P((int)) __unused; 60 LIBKERN_INLINE int isalpha __P((int)) __unused; 61 LIBKERN_INLINE int isdigit __P((int)) __unused; 62 LIBKERN_INLINE int isxdigit __P((int)) __unused; 63 LIBKERN_INLINE int toupper __P((int)) __unused; 64 LIBKERN_INLINE int tolower __P((int)) __unused; 65 66 #ifdef LIBKERN_BODY 67 LIBKERN_INLINE int 68 imax(int a, int b) 69 { 70 return (a > b ? a : b); 71 } 72 LIBKERN_INLINE int 73 imin(int a, int b) 74 { 75 return (a < b ? a : b); 76 } 77 LIBKERN_INLINE long 78 lmax(long a, long b) 79 { 80 return (a > b ? a : b); 81 } 82 LIBKERN_INLINE long 83 lmin(long a, long b) 84 { 85 return (a < b ? a : b); 86 } 87 LIBKERN_INLINE u_int 88 max(u_int a, u_int b) 89 { 90 return (a > b ? a : b); 91 } 92 LIBKERN_INLINE u_int 93 min(u_int a, u_int b) 94 { 95 return (a < b ? a : b); 96 } 97 LIBKERN_INLINE u_long 98 ulmax(u_long a, u_long b) 99 { 100 return (a > b ? a : b); 101 } 102 LIBKERN_INLINE u_long 103 ulmin(u_long a, u_long b) 104 { 105 return (a < b ? a : b); 106 } 107 108 LIBKERN_INLINE int 109 abs(int j) 110 { 111 return(j < 0 ? -j : j); 112 } 113 114 LIBKERN_INLINE int 115 isspace(int ch) 116 { 117 return (ch == ' ' || (ch >= '\t' && ch <= '\r')); 118 } 119 120 LIBKERN_INLINE int 121 isascii(int ch) 122 { 123 return ((ch & ~0x7f) == 0); 124 } 125 126 LIBKERN_INLINE int 127 isupper(int ch) 128 { 129 return (ch >= 'A' && ch <= 'Z'); 130 } 131 132 LIBKERN_INLINE int 133 islower(int ch) 134 { 135 return (ch >= 'a' && ch <= 'z'); 136 } 137 138 LIBKERN_INLINE int 139 isalpha(int ch) 140 { 141 return (isupper(ch) || islower(ch)); 142 } 143 144 LIBKERN_INLINE int 145 isdigit(int ch) 146 { 147 return (ch >= '0' && ch <= '9'); 148 } 149 150 LIBKERN_INLINE int 151 isxdigit(int ch) 152 { 153 return (isdigit(ch) || 154 (ch >= 'A' && ch <= 'F') || 155 (ch >= 'a' && ch <= 'f')); 156 } 157 158 LIBKERN_INLINE int 159 toupper(int ch) 160 { 161 if (islower(ch)) 162 return (ch - 0x20); 163 return (ch); 164 } 165 166 LIBKERN_INLINE int 167 tolower(int ch) 168 { 169 if (isupper(ch)) 170 return (ch + 0x20); 171 return (ch); 172 } 173 #endif 174 175 #define __NULL_STMT do { } while (/* CONSTCOND */ 0) 176 177 #define _KASSERTSTR "kernel %sassertion \"%s\" failed: file \"%s\", line %d " 178 179 180 #ifdef NDEBUG /* tradition! */ 181 #define assert(e) ((void)0) 182 #else 183 #ifdef __STDC__ 184 #define assert(e) (__predict_true((e)) ? (void)0 : \ 185 __kernassert(_KASSERTSTR, __FILE__, __LINE__, #e)) 186 #else 187 #define assert(e) (__predict_true((e)) ? (void)0 : \ 188 __kernassert(_KASSERTSTR, __FILE__, __LINE__, "e")) 189 #endif 190 #endif 191 192 #ifdef __COVERITY__ 193 #ifndef DIAGNOSTIC 194 #define DIAGNOSTIC 195 #endif 196 #endif 197 198 #define CTASSERT(x) __CTASSERT(x) 199 200 #ifndef DIAGNOSTIC 201 #define _DIAGASSERT(a) (void)0 202 #ifdef lint 203 #define KASSERTMSG(e, msg, ...) /* NOTHING */ 204 #define KASSERT(e) /* NOTHING */ 205 #else /* !lint */ 206 #define KASSERTMSG(e, msg, ...) ((void)0) 207 #define KASSERT(e) ((void)0) 208 #endif /* !lint */ 209 #else /* DIAGNOSTIC */ 210 #define _DIAGASSERT(a) assert(a) 211 #define KASSERTMSG(e, msg, ...) \ 212 (__predict_true((e)) ? (void)0 \ 213 : __kernassert(_KASSERTSTR msg, "diagnostic ", #e, \ 214 __FILE__, __LINE__, ## __VA_ARGS__ )) 215 #ifdef __STDC__ 216 #define KASSERT(e) (__predict_true((e)) ? (void)0 : \ 217 __kernassert(_KASSERTSTR, "diagnostic ", __FILE__, __LINE__, #e)) 218 #else 219 #define KASSERT(e) (__predict_true((e)) ? (void)0 : \ 220 __kernassert(_KASSERTSTR, "diagnostic ", __FILE__, __LINE__,"e")) 221 #endif 222 #endif 223 224 #ifndef DEBUG 225 #ifdef lint 226 #define KDASSERTMSG(e, msg, ...) /* NOTHING */ 227 #define KDASSERT(e) /* NOTHING */ 228 #else /* lint */ 229 #define KDASSERTMSG(e, msg, ...) ((void)0) 230 #define KDASSERT(e) ((void)0) 231 #endif /* lint */ 232 #else 233 #define KDASSERTMSG(e, msg, ...) \ 234 (__predict_true((e)) ? (void)0 \ 235 : __kernassert(_KASSERTSTR msg, "debuggin ", #e, \ 236 __FILE__, __LINE__, ## __VA_ARGS__ )) 237 #ifdef __STDC__ 238 #define KDASSERT(e) (__predict_true((e)) ? (void)0 : \ 239 __kernassert(_KASSERTSTR, "debugging ", __FILE__, __LINE__, #e)) 240 #else 241 #define KDASSERT(e) (__predict_true((e)) ? (void)0 : \ 242 __kernassert(_KASSERTSTR, "debugging ", __FILE__, __LINE__, "e")) 243 #endif 244 #endif 245 /* 246 * XXX: For compatibility we use SMALL_RANDOM by default. 247 */ 248 #define SMALL_RANDOM 249 250 #ifndef offsetof 251 #define offsetof(type, member) \ 252 ((size_t)(unsigned long)(&(((type *)0)->member))) 253 #endif 254 255 #define MTPRNG_RLEN 624 256 struct mtprng_state { 257 unsigned int mt_idx; 258 uint32_t mt_elem[MTPRNG_RLEN]; 259 uint32_t mt_count; 260 uint32_t mt_sparse[3]; 261 }; 262 263 /* Prototypes for non-quad routines. */ 264 /* XXX notyet #ifdef _STANDALONE */ 265 int bcmp __P((const void *, const void *, size_t)); 266 void bcopy __P((const void *, void *, size_t)); 267 void bzero __P((void *, size_t)); 268 /* #endif */ 269 270 /* Prototypes for which GCC built-ins exist. */ 271 void *memcpy __P((void *, const void *, size_t)); 272 int memcmp __P((const void *, const void *, size_t)); 273 void *memset __P((void *, int, size_t)); 274 #if __GNUC_PREREQ__(2, 95) && (__GNUC_PREREQ__(4, 0) || !defined(__vax__)) 275 #define memcpy(d, s, l) __builtin_memcpy(d, s, l) 276 #define memcmp(a, b, l) __builtin_memcmp(a, b, l) 277 #endif 278 #if __GNUC_PREREQ__(2, 95) && !defined(__vax__) 279 #define memset(d, v, l) __builtin_memset(d, v, l) 280 #endif 281 282 char *strcpy __P((char *, const char *)); 283 int strcmp __P((const char *, const char *)); 284 size_t strlen __P((const char *)); 285 char *strsep(char **, const char *); 286 #if __GNUC_PREREQ__(2, 95) 287 #define strcpy(d, s) __builtin_strcpy(d, s) 288 #define strcmp(a, b) __builtin_strcmp(a, b) 289 #define strlen(a) __builtin_strlen(a) 290 #endif 291 292 /* Functions for which we always use built-ins. */ 293 #ifdef __GNUC__ 294 #define alloca(s) __builtin_alloca(s) 295 #endif 296 297 /* These exist in GCC 3.x, but we don't bother. */ 298 char *strcat __P((char *, const char *)); 299 char *strncpy __P((char *, const char *, size_t)); 300 int strncmp __P((const char *, const char *, size_t)); 301 char *strchr __P((const char *, int)); 302 char *strrchr __P((const char *, int)); 303 304 char *strstr __P((const char *, const char *)); 305 306 /* 307 * ffs is an instruction on vax. 308 */ 309 int ffs __P((int)); 310 #if __GNUC_PREREQ__(2, 95) && (!defined(__vax__) || __GNUC_PREREQ__(4,1)) 311 #define ffs(x) __builtin_ffs(x) 312 #endif 313 314 void __kernassert (const char *, ...); 315 unsigned int 316 bcdtobin __P((unsigned int)); 317 unsigned int 318 bintobcd __P((unsigned int)); 319 u_int32_t 320 inet_addr __P((const char *)); 321 struct in_addr; 322 int inet_aton __P((const char *, struct in_addr *)); 323 char *intoa __P((u_int32_t)); 324 #define inet_ntoa(a) intoa((a).s_addr) 325 void *memchr __P((const void *, int, size_t)); 326 void *memmove __P((void *, const void *, size_t)); 327 int pmatch __P((const char *, const char *, const char **)); 328 u_int32_t arc4random __P((void)); 329 void arc4randbytes __P((void *, size_t)); 330 #ifndef SMALL_RANDOM 331 void srandom __P((unsigned long)); 332 char *initstate __P((unsigned long, char *, size_t)); 333 char *setstate __P((char *)); 334 #endif /* SMALL_RANDOM */ 335 long random __P((void)); 336 void mtprng_init32(struct mtprng_state *, uint32_t); 337 void mtprng_initarray(struct mtprng_state *, const uint32_t *, size_t); 338 uint32_t mtprng_rawrandom(struct mtprng_state *); 339 uint32_t mtprng_random(struct mtprng_state *); 340 int scanc __P((u_int, const u_char *, const u_char *, int)); 341 int skpc __P((int, size_t, u_char *)); 342 int strcasecmp __P((const char *, const char *)); 343 size_t strlcpy __P((char *, const char *, size_t)); 344 size_t strlcat __P((char *, const char *, size_t)); 345 int strncasecmp __P((const char *, const char *, size_t)); 346 u_long strtoul __P((const char *, char **, int)); 347 uint32_t crc32(uint32_t, const uint8_t *, size_t); 348 long long strtoll __P((const char *, char **, int)); 349 unsigned long long strtoull __P((const char *, char **, int)); 350 uintmax_t strtoumax __P((const char *, char **, int)); 351 unsigned int popcount(unsigned int); 352 unsigned int popcountl(unsigned long); 353 unsigned int popcountll(unsigned long long); 354 unsigned int popcount32(uint32_t); 355 unsigned int popcount64(uint64_t); 356 #endif /* !_LIB_LIBKERN_LIBKERN_H_ */ 357
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