/* * Copyright (c) 2000-2012 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)libkern.h 8.1 (Berkeley) 6/10/93 */ /* * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce * support for mandatory and extensible security protections. This notice * is included in support of clause 2.2 (b) of the Apple Public License, * Version 2.0. */ #ifndef _LIBKERN_LIBKERN_H_ #define _LIBKERN_LIBKERN_H_ #include <sys/appleapiopts.h> #include <stdint.h> #include <stdarg.h> /* for platform-specific va_list */ #include <string.h> #include <sys/cdefs.h> #include <sys/types.h> #include <mach/vm_param.h> #ifdef __APPLE_API_OBSOLETE /* BCD conversions. */ extern u_char const bcd2bin_data[]; extern u_char const bin2bcd_data[]; #define bcd2bin(bcd) (bcd2bin_data[bcd]) #define bin2bcd(bin) (bin2bcd_data[bin]) #endif /* __APPLE_API_OBSOLETE */ #ifdef __APPLE_API_PRIVATE extern char const hex2ascii_data[]; #define hex2ascii(hex) (hex2ascii_data[hex]) #endif /* __APPLE_API_PRIVATE */ __BEGIN_DECLS static inline int imax(int a, int b) { return (a > b ? a : b); } static inline int imin(int a, int b) { return (a < b ? a : b); } static inline long lmax(long a, long b) { return (a > b ? a : b); } static inline long lmin(long a, long b) { return (a < b ? a : b); } static inline u_int max(u_int a, u_int b) { return (a > b ? a : b); } static inline u_int min(u_int a, u_int b) { return (a < b ? a : b); } static inline u_int32_t ulmax(u_int32_t a, u_int32_t b) { return (a > b ? a : b); } static inline u_int32_t ulmin(u_int32_t a, u_int32_t b) { return (a < b ? a : b); } /* Prototypes for non-quad routines. */ extern int ffs(int); extern u_int32_t random(void); extern int scanc(u_int, u_char *, const u_char *, int); extern int skpc(int, int, char *); extern long strtol(const char*, char **, int); extern u_long strtoul(const char *, char **, int); extern quad_t strtoq(const char *, char **, int); extern u_quad_t strtouq(const char *, char **, int); extern char *strsep(char **, const char *); extern void *memchr(const void *, int, size_t); int snprintf(char *, size_t, const char *, ...) __printflike(3,4); /* sprintf() is being deprecated. Please use snprintf() instead. */ int sprintf(char *bufp, const char *, ...) __deprecated; int sscanf(const char *, char const *, ...) __scanflike(2,3); int printf(const char *, ...) __printflike(1,2); #if KERNEL_PRIVATE int _consume_printf_args(int, ...); #endif #if CONFIG_NO_PRINTF_STRINGS #if KERNEL_PRIVATE #define printf(x, ...) _consume_printf_args( 0, ## __VA_ARGS__ ) #else #define printf(x, ...) do {} while (0) #endif #endif uint32_t crc32(uint32_t crc, const void *bufp, size_t len); int copystr(const void *kfaddr, void *kdaddr, size_t len, size_t *done); int copyinstr(const user_addr_t uaddr, void *kaddr, size_t len, size_t *done); int copyoutstr(const void *kaddr, user_addr_t udaddr, size_t len, size_t *done); int copyin(const user_addr_t uaddr, void *kaddr, size_t len); int copyout(const void *kaddr, user_addr_t udaddr, size_t len); int vsscanf(const char *, char const *, va_list); extern int vprintf(const char *, va_list); extern int vsnprintf(char *, size_t, const char *, va_list); /* vsprintf() is being deprecated. Please use vsnprintf() instead. */ extern int vsprintf(char *bufp, const char *, va_list) __deprecated; #ifdef KERNEL_PRIVATE extern void invalidate_icache(vm_offset_t, unsigned, int); extern void flush_dcache(vm_offset_t, unsigned, int); #else extern void invalidate_icache(vm_offset_t, unsigned, int); extern void flush_dcache(vm_offset_t, unsigned, int); #endif extern void invalidate_icache64(addr64_t, unsigned, int); extern void flush_dcache64(addr64_t, unsigned, int); /* * assembly versions of clz... ideally we would just call * __builtin_clz(num), unfortunately this one is ill defined * by gcc for num=0 */ static __inline__ unsigned int clz(unsigned int num) { return num?__builtin_clz(num):__builtin_clz(0); } __END_DECLS #endif /* _LIBKERN_LIBKERN_H_ */