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.
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11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)libkern.h 8.1 (Berkeley) 6/10/93
37 #ifndef _SYS_LIBKERN_H_
38 #define _SYS_LIBKERN_H_
40 #include <sys/cdefs.h>
41 #include <sys/types.h>
43 #include <sys/systm.h>
46 /* BCD conversions. */
47 extern u_char const bcd2bin_data[];
48 extern u_char const bin2bcd_data[];
49 extern char const hex2ascii_data[];
51 #define bcd2bin(bcd) (bcd2bin_data[bcd])
52 #define bin2bcd(bin) (bin2bcd_data[bin])
53 #define hex2ascii(hex) (hex2ascii_data[hex])
55 static __inline int imax(int a, int b) { return (a > b ? a : b); }
56 static __inline int imin(int a, int b) { return (a < b ? a : b); }
57 static __inline long lmax(long a, long b) { return (a > b ? a : b); }
58 static __inline long lmin(long a, long b) { return (a < b ? a : b); }
59 static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); }
60 static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); }
61 static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); }
62 static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); }
63 static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); }
64 static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); }
66 static __inline int abs(int a) { return (a < 0 ? -a : a); }
67 static __inline long labs(long a) { return (a < 0 ? -a : a); }
68 static __inline quad_t qabs(quad_t a) { return (a < 0 ? -a : a); }
70 /* Prototypes for non-quad routines. */
72 uint32_t arc4random(void);
73 void arc4rand(void *ptr, u_int len, int reseed);
74 int bcmp(const void *, const void *, size_t);
75 void *bsearch(const void *, const void *, size_t,
76 size_t, int (*)(const void *, const void *));
77 #ifndef HAVE_INLINE_FFS
80 #ifndef HAVE_INLINE_FLS
83 int fnmatch(const char *, const char *, int);
84 int locc(int, char *, u_int);
85 void qsort(void *base, size_t nmemb, size_t size,
86 int (*compar)(const void *, const void *));
88 char *index(const char *, int);
89 char *rindex(const char *, int);
90 int scanc(u_int, const u_char *, const u_char *, int);
91 int skpc(int, int, char *);
93 char *strcat(char * __restrict, const char * __restrict);
94 int strcmp(const char *, const char *);
95 char *strcpy(char * __restrict, const char * __restrict);
96 char *strdup(const char *__restrict, struct malloc_type *);
97 size_t strlcat(char *, const char *, size_t);
98 size_t strlcpy(char *, const char *, size_t);
99 size_t strlen(const char *);
100 int strncmp(const char *, const char *, size_t);
101 char *strncpy(char * __restrict, const char * __restrict, size_t);
102 char *strsep(char **, const char *delim);
103 int strvalid(const char *, size_t);
107 memcmp(const void *b1, const void *b2, size_t len)
109 return (bcmp(b1, b2, len));
112 static __inline void *
113 memset(void *b, int c, size_t len)
120 for (bb = (char *)b; len--; )
125 /* fnmatch() return values. */
126 #define FNM_NOMATCH 1 /* Match failed. */
128 /* fnmatch() flags. */
129 #define FNM_NOESCAPE 0x01 /* Disable backslash escaping. */
130 #define FNM_PATHNAME 0x02 /* Slash must be matched by slash. */
131 #define FNM_PERIOD 0x04 /* Period must be matched by period. */
132 #define FNM_LEADING_DIR 0x08 /* Ignore /<tail> after Imatch. */
133 #define FNM_CASEFOLD 0x10 /* Case insensitive search. */
134 #define FNM_IGNORECASE FNM_CASEFOLD
135 #define FNM_FILE_NAME FNM_PATHNAME
137 #endif /* !_SYS_LIBKERN_H_ */