f7caeade24
popular names. Hence: - comment current index() and rindex() functions, as these serve the same functionality as, respectively, strchr() and strrchr() from userland; - add inlined version of strchr() and strrchr(), as we tend to use them more often; - remove str[r]chr() definitions from ZFS code; Reviewed by: pjd Approved by: cognet (mentor)
181 lines
6.0 KiB
C
181 lines
6.0 KiB
C
/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)libkern.h 8.1 (Berkeley) 6/10/93
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* $FreeBSD$
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*/
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#ifndef _SYS_LIBKERN_H_
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#define _SYS_LIBKERN_H_
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#ifdef _KERNEL
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#include <sys/systm.h>
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#endif
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/* BCD conversions. */
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extern u_char const bcd2bin_data[];
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extern u_char const bin2bcd_data[];
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extern char const hex2ascii_data[];
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#define bcd2bin(bcd) (bcd2bin_data[bcd])
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#define bin2bcd(bin) (bin2bcd_data[bin])
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#define hex2ascii(hex) (hex2ascii_data[hex])
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static __inline int imax(int a, int b) { return (a > b ? a : b); }
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static __inline int imin(int a, int b) { return (a < b ? a : b); }
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static __inline long lmax(long a, long b) { return (a > b ? a : b); }
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static __inline long lmin(long a, long b) { return (a < b ? a : b); }
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static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); }
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static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); }
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static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); }
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static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); }
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static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); }
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static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); }
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static __inline off_t omax(off_t a, off_t b) { return (a > b ? a : b); }
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static __inline off_t omin(off_t a, off_t b) { return (a < b ? a : b); }
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static __inline int abs(int a) { return (a < 0 ? -a : a); }
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static __inline long labs(long a) { return (a < 0 ? -a : a); }
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static __inline quad_t qabs(quad_t a) { return (a < 0 ? -a : a); }
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/* Prototypes for non-quad routines. */
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struct malloc_type;
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uint32_t arc4random(void);
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void arc4rand(void *ptr, u_int len, int reseed);
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int bcmp(const void *, const void *, size_t);
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void *bsearch(const void *, const void *, size_t,
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size_t, int (*)(const void *, const void *));
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#ifndef HAVE_INLINE_FFS
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int ffs(int);
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#endif
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#ifndef HAVE_INLINE_FFSL
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int ffsl(long);
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#endif
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#ifndef HAVE_INLINE_FLS
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int fls(int);
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#endif
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#ifndef HAVE_INLINE_FLSL
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int flsl(long);
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#endif
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int fnmatch(const char *, const char *, int);
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void gets(char *, size_t, int);
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int locc(int, char *, u_int);
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void qsort(void *base, size_t nmemb, size_t size,
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int (*compar)(const void *, const void *));
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void qsort_r(void *base, size_t nmemb, size_t size, void *thunk,
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int (*compar)(void *, const void *, const void *));
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u_long random(void);
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char *index(const char *, int);
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char *rindex(const char *, int);
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int scanc(u_int, const u_char *, const u_char *, int);
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int skpc(int, int, char *);
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void srandom(u_long);
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int strcasecmp(const char *, const char *);
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char *strcat(char * __restrict, const char * __restrict);
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int strcmp(const char *, const char *);
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char *strcpy(char * __restrict, const char * __restrict);
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char *strdup(const char *__restrict, struct malloc_type *);
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size_t strlcat(char *, const char *, size_t);
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size_t strlcpy(char *, const char *, size_t);
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size_t strlen(const char *);
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int strncasecmp(const char *, const char *, size_t);
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int strncmp(const char *, const char *, size_t);
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char *strncpy(char * __restrict, const char * __restrict, size_t);
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char *strsep(char **, const char *delim);
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size_t strspn(const char *, const char *);
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char *strstr(const char *, const char *);
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int strvalid(const char *, size_t);
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extern uint32_t crc32_tab[];
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static __inline uint32_t
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crc32_raw(const void *buf, size_t size, uint32_t crc)
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{
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const uint8_t *p = (const uint8_t *)buf;
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while (size--)
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crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
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return (crc);
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}
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static __inline uint32_t
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crc32(const void *buf, size_t size)
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{
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uint32_t crc;
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crc = crc32_raw(buf, size, ~0U);
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return (crc ^ ~0U);
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}
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static __inline int
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memcmp(const void *b1, const void *b2, size_t len)
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{
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return (bcmp(b1, b2, len));
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}
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static __inline void *
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memset(void *b, int c, size_t len)
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{
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char *bb;
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if (c == 0)
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bzero(b, len);
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else
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for (bb = (char *)b; len--; )
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*bb++ = c;
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return (b);
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}
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static __inline char *
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strchr(const char *p, int ch)
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{
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return (index(p, ch));
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}
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static __inline char *
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strrchr(const char *p, int ch)
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{
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return (rindex(p, ch));
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}
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/* fnmatch() return values. */
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#define FNM_NOMATCH 1 /* Match failed. */
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/* fnmatch() flags. */
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#define FNM_NOESCAPE 0x01 /* Disable backslash escaping. */
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#define FNM_PATHNAME 0x02 /* Slash must be matched by slash. */
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#define FNM_PERIOD 0x04 /* Period must be matched by period. */
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#define FNM_LEADING_DIR 0x08 /* Ignore /<tail> after Imatch. */
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#define FNM_CASEFOLD 0x10 /* Case insensitive search. */
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#define FNM_IGNORECASE FNM_CASEFOLD
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#define FNM_FILE_NAME FNM_PATHNAME
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#endif /* !_SYS_LIBKERN_H_ */
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