142 lines
3.3 KiB
C
142 lines
3.3 KiB
C
/*-
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* Copyright (c) 2010 Isilon Systems, Inc.
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* Copyright (c) 2010 iX Systems, Inc.
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* Copyright (c) 2010 Panasas, Inc.
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* Copyright (c) 2013-2017 Mellanox Technologies, Ltd.
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* 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 unmodified, this list of conditions, and the following
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LINUX_STRING_H_
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#define _LINUX_STRING_H_
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#include <sys/ctype.h>
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#include <linux/types.h>
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#include <linux/gfp.h>
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#include <linux/slab.h>
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#include <linux/uaccess.h>
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#include <linux/err.h>
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#include <sys/libkern.h>
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#define strnicmp(...) strncasecmp(__VA_ARGS__)
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static inline int
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match_string(const char *const *table, int n, const char *key)
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{
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int i;
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for (i = 0; i != n && table[i] != NULL; i++) {
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if (strcmp(table[i], key) == 0)
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return (i);
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}
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return (-EINVAL);
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}
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static inline void *
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memdup_user(const void *ptr, size_t len)
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{
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void *retval;
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int error;
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retval = malloc(len, M_KMALLOC, M_WAITOK);
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error = linux_copyin(ptr, retval, len);
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if (error != 0) {
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free(retval, M_KMALLOC);
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return (ERR_PTR(error));
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}
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return (retval);
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}
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static inline void *
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kmemdup(const void *src, size_t len, gfp_t gfp)
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{
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void *dst;
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dst = kmalloc(len, gfp);
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if (dst != NULL)
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memcpy(dst, src, len);
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return (dst);
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}
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static inline char *
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kstrdup(const char *string, gfp_t gfp)
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{
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char *retval;
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size_t len;
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len = strlen(string) + 1;
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retval = kmalloc(len, gfp);
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if (retval != NULL)
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memcpy(retval, string, len);
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return (retval);
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}
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static inline char *
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kstrndup(const char *string, size_t len, gfp_t gfp)
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{
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char *retval;
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retval = kmalloc(len + 1, gfp);
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if (retval != NULL)
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strncpy(retval, string, len);
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return (retval);
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}
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static inline const char *
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kstrdup_const(const char *src, gfp_t gfp)
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{
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return (kmemdup(src, strlen(src) + 1, gfp));
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}
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static inline char *
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skip_spaces(const char *str)
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{
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while (isspace(*str))
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++str;
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return (__DECONST(char *, str));
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}
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static inline void *
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memchr_inv(const void *start, int c, size_t length)
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{
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const u8 *ptr;
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const u8 *end;
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u8 ch;
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ch = c;
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ptr = start;
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end = ptr + length;
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while (ptr != end) {
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if (*ptr != ch)
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return (__DECONST(void *, ptr));
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ptr++;
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}
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return (NULL);
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}
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#endif /* _LINUX_STRING_H_ */
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