2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013-2017 Mellanox Technologies, Ltd.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice unmodified, this list of conditions, and the following
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #ifndef _LINUX_STRING_H_
32 #define _LINUX_STRING_H_
34 #include <sys/ctype.h>
36 #include <linux/types.h>
37 #include <linux/gfp.h>
38 #include <linux/slab.h>
39 #include <linux/uaccess.h>
40 #include <linux/err.h>
42 #include <sys/libkern.h>
44 #define strnicmp(...) strncasecmp(__VA_ARGS__)
47 match_string(const char *const *table, int n, const char *key)
51 for (i = 0; i != n && table[i] != NULL; i++) {
52 if (strcmp(table[i], key) == 0)
59 memdup_user(const void *ptr, size_t len)
64 retval = malloc(len, M_KMALLOC, M_WAITOK);
65 error = linux_copyin(ptr, retval, len);
67 free(retval, M_KMALLOC);
68 return (ERR_PTR(error));
74 memdup_user_nul(const void *ptr, size_t len)
79 retval = malloc(len + 1, M_KMALLOC, M_WAITOK);
80 error = linux_copyin(ptr, retval, len);
82 free(retval, M_KMALLOC);
83 return (ERR_PTR(error));
90 kmemdup(const void *src, size_t len, gfp_t gfp)
94 dst = kmalloc(len, gfp);
96 memcpy(dst, src, len);
101 kstrdup(const char *string, gfp_t gfp)
106 len = strlen(string) + 1;
107 retval = kmalloc(len, gfp);
109 memcpy(retval, string, len);
114 kstrndup(const char *string, size_t len, gfp_t gfp)
118 retval = kmalloc(len + 1, gfp);
120 strncpy(retval, string, len);
124 static inline const char *
125 kstrdup_const(const char *src, gfp_t gfp)
127 return (kmemdup(src, strlen(src) + 1, gfp));
131 skip_spaces(const char *str)
133 while (isspace(*str))
135 return (__DECONST(char *, str));
139 memchr_inv(const void *start, int c, size_t length)
151 return (__DECONST(void *, ptr));
157 #endif /* _LINUX_STRING_H_ */