2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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 * 3. 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.
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
29 * @(#)libkern.h 8.1 (Berkeley) 6/10/93
30 * $FreeBSD: src/sys/sys/libkern.h,v 1.20.2.2 2001/09/30 21:12:54 luigi Exp $
33 #ifndef _SYS_LIBKERN_H_
34 #define _SYS_LIBKERN_H_
37 #error "This file should not be included by userland programs."
41 * Hacks to prevent conflicts with standard header files
45 #include <sys/cdefs.h>
48 #include <sys/types.h>
51 #include <sys/systm.h>
54 /* BCD conversions. */
55 extern u_char
const bcd2bin_data
[];
56 extern u_char
const bin2bcd_data
[];
57 extern char const hex2ascii_data
[];
59 #define bcd2bin(bcd) (bcd2bin_data[bcd])
60 #define bin2bcd(bin) (bin2bcd_data[bin])
61 #define hex2ascii(hex) (hex2ascii_data[hex])
64 * Number of bytes needed for hexadecimal representation
67 #define HEX_NCPYLEN(s) (s * 3)
69 static __inline
int imax(int a
, int b
) { return (a
> b
? a
: b
); }
70 static __inline
int imin(int a
, int b
) { return (a
< b
? a
: b
); }
71 static __inline
long lmax(long a
, long b
) { return (a
> b
? a
: b
); }
72 static __inline
long lmin(long a
, long b
) { return (a
< b
? a
: b
); }
73 static __inline u_int
umax(u_int a
, u_int b
) { return (a
> b
? a
: b
); }
74 static __inline u_int
umin(u_int a
, u_int b
) { return (a
< b
? a
: b
); }
75 static __inline u_int
max(u_int a
, u_int b
) { return (a
> b
? a
: b
); }
76 static __inline u_int
min(u_int a
, u_int b
) { return (a
< b
? a
: b
); }
77 static __inline quad_t
qmax(quad_t a
, quad_t b
) { return (a
> b
? a
: b
); }
78 static __inline quad_t
qmin(quad_t a
, quad_t b
) { return (a
< b
? a
: b
); }
79 static __inline u_long
ulmax(u_long a
, u_long b
) { return (a
> b
? a
: b
); }
80 static __inline u_long
ulmin(u_long a
, u_long b
) { return (a
< b
? a
: b
); }
81 static __inline u_int64_t
u64max(u_int64_t a
, u_int64_t b
) { return (a
> b
? a
: b
); }
82 static __inline u_int64_t
u64min(u_int64_t a
, u_int64_t b
) { return (a
< b
? a
: b
); }
83 static __inline
int64_t i64max(int64_t a
, int64_t b
) { return (a
> b
? a
: b
); }
84 static __inline
int64_t i64min(int64_t a
, int64_t b
) { return (a
< b
? a
: b
); }
85 static __inline
size_t szmax(size_t a
, size_t b
) { return (a
> b
? a
: b
); }
86 static __inline
size_t szmin(size_t a
, size_t b
) { return (a
< b
? a
: b
); }
88 static __inline
int abs(int a
) { return (a
< 0 ? -a
: a
); }
89 static __inline
long labs(long a
) { return (a
< 0 ? -a
: a
); }
90 static __inline quad_t
qabs(quad_t a
) { return (a
< 0 ? -a
: a
); }
92 /* Prototypes for non-quad routines. */
93 u_int32_t
karc4random(void);
94 void karc4rand(void *, size_t);
95 int bcmp(const void *, const void *, size_t);
96 void *kbsearch(const void *, const void *, size_t,
97 size_t, int (*)(const void *, const void *));
98 #ifndef HAVE_INLINE_FFS
101 #ifndef HAVE_INLINE_FFSL
104 #ifndef HAVE_INLINE_FLS
107 #ifndef HAVE_INLINE_FLSL
110 #ifndef HAVE_INLINE_FLSLL
111 int flsll(long long);
113 void kqsort(void *base
, size_t nmemb
, size_t size
,
114 int (*compar
)(const void *, const void *));
115 void kqsort_r(void *base
, size_t nmemb
, size_t size
, void *thunk
,
116 int (*compar
)(void *, const void *, const void *));
117 u_long
krandom(void);
118 char *index(const char *, int);
119 char *rindex(const char *, int);
120 int scanc(u_int
, const u_char
*, const u_char
*, int);
121 int skpc(int, int, char *);
122 void skrandom(u_long
);
123 char *strcat(char * __restrict
, const char * __restrict
);
124 char *strncat(char * __restrict
, const char * __restrict
, size_t);
125 int strcmp(const char *, const char *);
126 int strcasecmp(const char *, const char *);
127 char *strcpy(char * __restrict
, const char * __restrict
);
128 size_t strlcat(char *, const char *, size_t);
129 size_t strlcpy(char *, const char *, size_t);
130 size_t strlen(const char *);
131 int strncmp(const char *, const char *, size_t);
132 int strncasecmp(const char *, const char *, size_t);
133 char *strncpy(char * __restrict
, const char * __restrict
, size_t);
134 size_t strnlen(const char *, size_t);
135 char *strsep(char **, const char *);
136 char *strstr(const char *, const char *);
137 int _kfnmatch(const char *, const char *, int, int);
138 void *memcchr(const void *, int, size_t);
139 char *hexncpy(const u_char
*, int, char *, int, const char *);
142 * memset can't be an inline, it is used by gcc-4.x directly.
144 void *memset(void *, int, size_t);
145 void *memmove(void *, const void *, size_t);
149 kfnmatch(const char *pattern
, const char *string
, int flags
)
151 return(_kfnmatch(pattern
, string
, flags
, 0));
155 memcmp(const void *b1
, const void *b2
, size_t len
)
157 return (bcmp(b1
, b2
, len
));
160 static __inline
char *
161 strchr(const char *p
, int ch
)
163 return (index(p
, ch
));
166 static __inline
char *
167 strrchr(const char *p
, int ch
)
169 return (rindex(p
, ch
));
172 /* kfnmatch() return values. */
173 #define FNM_NOMATCH 1 /* Match failed. */
175 /* kfnmatch() flags. */
176 #define FNM_NOESCAPE 0x01 /* Disable backslash escaping. */
177 #define FNM_PATHNAME 0x02 /* Slash must be matched by slash. */
178 #define FNM_PERIOD 0x04 /* Period must be matched by period. */
179 #define FNM_LEADING_DIR 0x08 /* Ignore /<tail> after Imatch. */
180 #define FNM_CASEFOLD 0x10 /* Case insensitive search. */
181 #define FNM_IGNORECASE FNM_CASEFOLD
182 #define FNM_FILE_NAME FNM_PATHNAME
185 #endif /* !_SYS_LIBKERN_H_ */