1 #ifndef _LINUX_STRING_H_
2 #define _LINUX_STRING_H_
4 /* We don't want strings.h stuff being used by user stuff by accident */
10 #include <linux/compiler.h> /* for inline */
11 #include <linux/types.h> /* for size_t */
12 #include <linux/stddef.h> /* for NULL */
15 extern char *strndup_user(const char __user
*, long);
16 extern void *memdup_user(const void __user
*, size_t);
19 * Include machine specific inline routines
21 #include <asm/string.h>
23 #ifndef __HAVE_ARCH_STRCPY
24 extern char * strcpy(char *,const char *);
26 #ifndef __HAVE_ARCH_STRNCPY
27 extern char * strncpy(char *,const char *, __kernel_size_t
);
29 #ifndef __HAVE_ARCH_STRLCPY
30 size_t strlcpy(char *, const char *, size_t);
32 #ifndef __HAVE_ARCH_STRCAT
33 extern char * strcat(char *, const char *);
35 #ifndef __HAVE_ARCH_STRNCAT
36 extern char * strncat(char *, const char *, __kernel_size_t
);
38 #ifndef __HAVE_ARCH_STRLCAT
39 extern size_t strlcat(char *, const char *, __kernel_size_t
);
41 #ifndef __HAVE_ARCH_STRCMP
42 extern int strcmp(const char *,const char *);
44 #ifndef __HAVE_ARCH_STRNCMP
45 extern int strncmp(const char *,const char *,__kernel_size_t
);
47 #ifndef __HAVE_ARCH_STRNICMP
48 extern int strnicmp(const char *, const char *, __kernel_size_t
);
50 #ifndef __HAVE_ARCH_STRCASECMP
51 extern int strcasecmp(const char *s1
, const char *s2
);
53 #ifndef __HAVE_ARCH_STRNCASECMP
54 extern int strncasecmp(const char *s1
, const char *s2
, size_t n
);
56 #ifndef __HAVE_ARCH_STRCHR
57 extern char * strchr(const char *,int);
59 #ifndef __HAVE_ARCH_STRNCHR
60 extern char * strnchr(const char *, size_t, int);
62 #ifndef __HAVE_ARCH_STRRCHR
63 extern char * strrchr(const char *,int);
65 extern char * strstrip(char *);
66 #ifndef __HAVE_ARCH_STRSTR
67 extern char * strstr(const char *,const char *);
69 #ifndef __HAVE_ARCH_STRLEN
70 extern __kernel_size_t
strlen(const char *);
72 #ifndef __HAVE_ARCH_STRNLEN
73 extern __kernel_size_t
strnlen(const char *,__kernel_size_t
);
75 #ifndef __HAVE_ARCH_STRPBRK
76 extern char * strpbrk(const char *,const char *);
78 #ifndef __HAVE_ARCH_STRSEP
79 extern char * strsep(char **,const char *);
81 #ifndef __HAVE_ARCH_STRSPN
82 extern __kernel_size_t
strspn(const char *,const char *);
84 #ifndef __HAVE_ARCH_STRCSPN
85 extern __kernel_size_t
strcspn(const char *,const char *);
88 #ifndef __HAVE_ARCH_MEMSET
89 extern void * memset(void *,int,__kernel_size_t
);
91 #ifndef __HAVE_ARCH_MEMCPY
92 extern void * memcpy(void *,const void *,__kernel_size_t
);
94 #ifndef __HAVE_ARCH_MEMMOVE
95 extern void * memmove(void *,const void *,__kernel_size_t
);
97 #ifndef __HAVE_ARCH_MEMSCAN
98 extern void * memscan(void *,int,__kernel_size_t
);
100 #ifndef __HAVE_ARCH_MEMCMP
101 extern int memcmp(const void *,const void *,__kernel_size_t
);
103 #ifndef __HAVE_ARCH_MEMCHR
104 extern void * memchr(const void *,int,__kernel_size_t
);
107 extern char *kstrdup(const char *s
, gfp_t gfp
);
108 extern char *kstrndup(const char *s
, size_t len
, gfp_t gfp
);
109 extern void *kmemdup(const void *src
, size_t len
, gfp_t gfp
);
111 extern char **argv_split(gfp_t gfp
, const char *str
, int *argcp
);
112 extern void argv_free(char **argv
);
114 extern bool sysfs_streq(const char *s1
, const char *s2
);
116 #ifdef CONFIG_BINARY_PRINTF
117 int vbin_printf(u32
*bin_buf
, size_t size
, const char *fmt
, va_list args
);
118 int bstr_printf(char *buf
, size_t size
, const char *fmt
, const u32
*bin_buf
);
119 int bprintf(u32
*bin_buf
, size_t size
, const char *fmt
, ...) __printf(3, 4);
122 extern ssize_t
memory_read_from_buffer(void *to
, size_t count
, loff_t
*ppos
,
123 const void *from
, size_t available
);
126 * strstarts - does @str start with @prefix?
127 * @str: string to examine
128 * @prefix: prefix to look for.
130 static inline bool strstarts(const char *str
, const char *prefix
)
132 return strncmp(str
, prefix
, strlen(prefix
)) == 0;
135 #endif /* _LINUX_STRING_H_ */
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