The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/sys/libkern.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 1992, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 4. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  *      @(#)libkern.h   8.1 (Berkeley) 6/10/93
   30  * $FreeBSD: releng/7.3/sys/sys/libkern.h 182381 2008-08-28 17:58:01Z obrien $
   31  */
   32 
   33 #ifndef _SYS_LIBKERN_H_
   34 #define _SYS_LIBKERN_H_
   35 
   36 #include <sys/cdefs.h>
   37 #include <sys/types.h>
   38 #ifdef _KERNEL
   39 #include <sys/systm.h>
   40 #endif
   41 
   42 #ifndef LIBKERN_INLINE
   43 #define LIBKERN_INLINE  static __inline
   44 #define LIBKERN_BODY
   45 #endif
   46 
   47 /* BCD conversions. */
   48 extern u_char const     bcd2bin_data[];
   49 extern u_char const     bin2bcd_data[];
   50 extern char const       hex2ascii_data[];
   51 
   52 #define bcd2bin(bcd)    (bcd2bin_data[bcd])
   53 #define bin2bcd(bin)    (bin2bcd_data[bin])
   54 #define hex2ascii(hex)  (hex2ascii_data[hex])
   55 
   56 static __inline int imax(int a, int b) { return (a > b ? a : b); }
   57 static __inline int imin(int a, int b) { return (a < b ? a : b); }
   58 static __inline long lmax(long a, long b) { return (a > b ? a : b); }
   59 static __inline long lmin(long a, long b) { return (a < b ? a : b); }
   60 static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); }
   61 static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); }
   62 static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); }
   63 static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); }
   64 static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); }
   65 static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); }
   66 static __inline off_t omax(off_t a, off_t b) { return (a > b ? a : b); }
   67 static __inline off_t omin(off_t a, off_t b) { return (a < b ? a : b); }
   68 
   69 static __inline int abs(int a) { return (a < 0 ? -a : a); }
   70 static __inline long labs(long a) { return (a < 0 ? -a : a); }
   71 static __inline quad_t qabs(quad_t a) { return (a < 0 ? -a : a); }
   72 
   73 /* Prototypes for non-quad routines. */
   74 struct malloc_type;
   75 uint32_t arc4random(void);
   76 void     arc4rand(void *ptr, u_int len, int reseed);
   77 int      bcmp(const void *, const void *, size_t);
   78 void    *bsearch(const void *, const void *, size_t,
   79             size_t, int (*)(const void *, const void *));
   80 #ifndef HAVE_INLINE_FFS
   81 int      ffs(int);
   82 #endif
   83 #ifndef HAVE_INLINE_FFSL
   84 int      ffsl(long);
   85 #endif
   86 #ifndef HAVE_INLINE_FLS
   87 int      fls(int);
   88 #endif
   89 #ifndef HAVE_INLINE_FLSL
   90 int      flsl(long);
   91 #endif
   92 int      fnmatch(const char *, const char *, int);
   93 void     gets(char *, size_t, int);
   94 int      locc(int, char *, u_int);
   95 void     qsort(void *base, size_t nmemb, size_t size,
   96             int (*compar)(const void *, const void *));
   97 void     qsort_r(void *base, size_t nmemb, size_t size, void *thunk,
   98             int (*compar)(void *, const void *, const void *));
   99 u_long   random(void);
  100 char    *index(const char *, int);
  101 char    *rindex(const char *, int);
  102 int      scanc(u_int, const u_char *, const u_char *, int);
  103 int      skpc(int, int, char *);
  104 void     srandom(u_long);
  105 int      strcasecmp(const char *, const char *);
  106 char    *strcat(char * __restrict, const char * __restrict);
  107 int      strcmp(const char *, const char *);
  108 char    *strcpy(char * __restrict, const char * __restrict);
  109 char    *strdup(const char *__restrict, struct malloc_type *);
  110 size_t   strlcat(char *, const char *, size_t);
  111 size_t   strlcpy(char *, const char *, size_t);
  112 size_t   strlen(const char *);
  113 int      strncasecmp(const char *, const char *, size_t);
  114 int      strncmp(const char *, const char *, size_t);
  115 char    *strncpy(char * __restrict, const char * __restrict, size_t);
  116 char    *strsep(char **, const char *delim);
  117 size_t   strspn(const char *, const char *);
  118 char    *strstr(const char *, const char *);
  119 int      strvalid(const char *, size_t);
  120 
  121 extern uint32_t crc32_tab[];
  122 
  123 static __inline uint32_t
  124 crc32_raw(const void *buf, size_t size, uint32_t crc)
  125 {
  126         const uint8_t *p = (const uint8_t *)buf;
  127 
  128         while (size--)
  129                 crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
  130         return (crc);
  131 }
  132 
  133 static __inline uint32_t
  134 crc32(const void *buf, size_t size)
  135 {
  136         uint32_t crc;
  137 
  138         crc = crc32_raw(buf, size, ~0U);
  139         return (crc ^ ~0U);
  140 }
  141 
  142 static __inline int
  143 memcmp(const void *b1, const void *b2, size_t len)
  144 {
  145         return (bcmp(b1, b2, len));
  146 }
  147 
  148 LIBKERN_INLINE void *memset(void *, int, size_t);
  149 #ifdef LIBKERN_BODY
  150 LIBKERN_INLINE void *
  151 memset(void *b, int c, size_t len)
  152 {
  153         char *bb;
  154 
  155         if (c == 0)
  156                 bzero(b, len);
  157         else
  158                 for (bb = (char *)b; len--; )
  159                         *bb++ = c;
  160         return (b);
  161 }
  162 #endif
  163 
  164 static __inline char *
  165 strchr(const char *p, int ch)
  166 {
  167         return (index(p, ch));
  168 }
  169 
  170 static __inline char *
  171 strrchr(const char *p, int ch)
  172 {
  173         return (rindex(p, ch));
  174 }
  175 
  176 /* fnmatch() return values. */
  177 #define FNM_NOMATCH     1       /* Match failed. */
  178 
  179 /* fnmatch() flags. */
  180 #define FNM_NOESCAPE    0x01    /* Disable backslash escaping. */
  181 #define FNM_PATHNAME    0x02    /* Slash must be matched by slash. */
  182 #define FNM_PERIOD      0x04    /* Period must be matched by period. */
  183 #define FNM_LEADING_DIR 0x08    /* Ignore /<tail> after Imatch. */
  184 #define FNM_CASEFOLD    0x10    /* Case insensitive search. */
  185 #define FNM_IGNORECASE  FNM_CASEFOLD
  186 #define FNM_FILE_NAME   FNM_PATHNAME
  187 
  188 #endif /* !_SYS_LIBKERN_H_ */

Cache object: f5dab4da442eaf9c3c224e3ba2450984


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.