[deliverable/linux.git] / include / linux / string.h

#ifndef _LINUX_STRING_H_
#define _LINUX_STRING_H_

/* We don't want strings.h stuff being used by user stuff by accident */

#ifndef __KERNEL__
#include <string.h>
#else

#include <linux/compiler.h>	/* for inline */
#include <linux/types.h>	/* for size_t */
#include <linux/stddef.h>	/* for NULL */
#include <stdarg.h>

extern char *strndup_user(const char __user *, long);
extern void *memdup_user(const void __user *, size_t);

/*
 * Include machine specific inline routines
 */
#include <asm/string.h>

#ifndef __HAVE_ARCH_STRCPY
extern char * strcpy(char *,const char *);
#endif
#ifndef __HAVE_ARCH_STRNCPY
extern char * strncpy(char *,const char *, __kernel_size_t);
#endif
#ifndef __HAVE_ARCH_STRLCPY
size_t strlcpy(char *, const char *, size_t);
#endif
#ifndef __HAVE_ARCH_STRCAT
extern char * strcat(char *, const char *);
#endif
#ifndef __HAVE_ARCH_STRNCAT
extern char * strncat(char *, const char *, __kernel_size_t);
#endif
#ifndef __HAVE_ARCH_STRLCAT
extern size_t strlcat(char *, const char *, __kernel_size_t);
#endif
#ifndef __HAVE_ARCH_STRCMP
extern int strcmp(const char *,const char *);
#endif
#ifndef __HAVE_ARCH_STRNCMP
extern int strncmp(const char *,const char *,__kernel_size_t);
#endif
#ifndef __HAVE_ARCH_STRNICMP
extern int strnicmp(const char *, const char *, __kernel_size_t);
#endif
#ifndef __HAVE_ARCH_STRCASECMP
extern int strcasecmp(const char *s1, const char *s2);
#endif
#ifndef __HAVE_ARCH_STRNCASECMP
extern int strncasecmp(const char *s1, const char *s2, size_t n);
#endif
#ifndef __HAVE_ARCH_STRCHR
extern char * strchr(const char *,int);
#endif
#ifndef __HAVE_ARCH_STRNCHR
extern char * strnchr(const char *, size_t, int);
#endif
#ifndef __HAVE_ARCH_STRRCHR
extern char * strrchr(const char *,int);
#endif
extern char * __must_check skip_spaces(const char *);

extern char *strim(char *);

static inline __must_check char *strstrip(char *str)
{
	return strim(str);
}

#ifndef __HAVE_ARCH_STRSTR
extern char * strstr(const char *,const char *);
#endif
#ifndef __HAVE_ARCH_STRLEN
extern __kernel_size_t strlen(const char *);
#endif
#ifndef __HAVE_ARCH_STRNLEN
extern __kernel_size_t strnlen(const char *,__kernel_size_t);
#endif
#ifndef __HAVE_ARCH_STRPBRK
extern char * strpbrk(const char *,const char *);
#endif
#ifndef __HAVE_ARCH_STRSEP
extern char * strsep(char **,const char *);
#endif
#ifndef __HAVE_ARCH_STRSPN
extern __kernel_size_t strspn(const char *,const char *);
#endif
#ifndef __HAVE_ARCH_STRCSPN
extern __kernel_size_t strcspn(const char *,const char *);
#endif

#ifndef __HAVE_ARCH_MEMSET
extern void * memset(void *,int,__kernel_size_t);
#endif
#ifndef __HAVE_ARCH_MEMCPY
extern void * memcpy(void *,const void *,__kernel_size_t);
#endif
#ifndef __HAVE_ARCH_MEMMOVE
extern void * memmove(void *,const void *,__kernel_size_t);
#endif
#ifndef __HAVE_ARCH_MEMSCAN
extern void * memscan(void *,int,__kernel_size_t);
#endif
#ifndef __HAVE_ARCH_MEMCMP
extern int memcmp(const void *,const void *,__kernel_size_t);
#endif
#ifndef __HAVE_ARCH_MEMCHR
extern void * memchr(const void *,int,__kernel_size_t);
#endif

extern char *kstrdup(const char *s, gfp_t gfp);
extern char *kstrndup(const char *s, size_t len, gfp_t gfp);
extern void *kmemdup(const void *src, size_t len, gfp_t gfp);

extern char **argv_split(gfp_t gfp, const char *str, int *argcp);
extern void argv_free(char **argv);

extern bool sysfs_streq(const char *s1, const char *s2);

#ifdef CONFIG_BINARY_PRINTF
int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args);
int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf);
int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...) __printf(3, 4);
#endif

extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
			const void *from, size_t available);

/**
 * strstarts - does @str start with @prefix?
 * @str: string to examine
 * @prefix: prefix to look for.
 */
static inline bool strstarts(const char *str, const char *prefix)
{
	return strncmp(str, prefix, strlen(prefix)) == 0;
}
#endif
#endif /* _LINUX_STRING_H_ */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_STRING_H_
	2	#define _LINUX_STRING_H_
	3
4ac96572	4	/* We don't want strings.h stuff being used by user stuff by accident */
1da177e4	5
97ef1bb0 DM	6	#ifndef __KERNEL__
	7	#include <string.h>
	8	#else
1da177e4 LT	9
	10	#include <linux/compiler.h> /* for inline */
	11	#include <linux/types.h> /* for size_t */
	12	#include <linux/stddef.h> /* for NULL */
4370aa4a	13	#include <stdarg.h>
1da177e4	14
96840aa0	15	extern char strndup_user(const char __user , long);
610a77e0	16	extern void memdup_user(const void __user , size_t);
96840aa0	17
1da177e4 LT	18	/*
	19	* Include machine specific inline routines
	20	*/
	21	#include <asm/string.h>
	22
	23	#ifndef __HAVE_ARCH_STRCPY
	24	extern char * strcpy(char ,const char );
	25	#endif
	26	#ifndef __HAVE_ARCH_STRNCPY
	27	extern char * strncpy(char ,const char , __kernel_size_t);
	28	#endif
	29	#ifndef __HAVE_ARCH_STRLCPY
	30	size_t strlcpy(char , const char , size_t);
	31	#endif
	32	#ifndef __HAVE_ARCH_STRCAT
	33	extern char * strcat(char , const char );
	34	#endif
	35	#ifndef __HAVE_ARCH_STRNCAT
	36	extern char * strncat(char , const char , __kernel_size_t);
	37	#endif
	38	#ifndef __HAVE_ARCH_STRLCAT
	39	extern size_t strlcat(char , const char , __kernel_size_t);
	40	#endif
	41	#ifndef __HAVE_ARCH_STRCMP
	42	extern int strcmp(const char ,const char );
	43	#endif
	44	#ifndef __HAVE_ARCH_STRNCMP
	45	extern int strncmp(const char ,const char ,__kernel_size_t);
	46	#endif
	47	#ifndef __HAVE_ARCH_STRNICMP
	48	extern int strnicmp(const char , const char , __kernel_size_t);
	49	#endif
ded220bd DM	50	#ifndef __HAVE_ARCH_STRCASECMP
	51	extern int strcasecmp(const char s1, const char s2);
	52	#endif
	53	#ifndef __HAVE_ARCH_STRNCASECMP
	54	extern int strncasecmp(const char s1, const char s2, size_t n);
	55	#endif
1da177e4 LT	56	#ifndef __HAVE_ARCH_STRCHR
	57	extern char * strchr(const char *,int);
	58	#endif
	59	#ifndef __HAVE_ARCH_STRNCHR
	60	extern char * strnchr(const char *, size_t, int);
	61	#endif
	62	#ifndef __HAVE_ARCH_STRRCHR
	63	extern char * strrchr(const char *,int);
	64	#endif
f653398c	65	extern char * __must_check skip_spaces(const char *);
ca54cb8c KM	66
	67	extern char strim(char );
	68
	69	static inline __must_check char strstrip(char str)
	70	{
	71	return strim(str);
	72	}
	73
1da177e4 LT	74	#ifndef __HAVE_ARCH_STRSTR
	75	extern char * strstr(const char ,const char );
	76	#endif
	77	#ifndef __HAVE_ARCH_STRLEN
	78	extern __kernel_size_t strlen(const char *);
	79	#endif
	80	#ifndef __HAVE_ARCH_STRNLEN
	81	extern __kernel_size_t strnlen(const char *,__kernel_size_t);
	82	#endif
8833d328 KM	83	#ifndef __HAVE_ARCH_STRPBRK
	84	extern char * strpbrk(const char ,const char );
	85	#endif
	86	#ifndef __HAVE_ARCH_STRSEP
	87	extern char * strsep(char *,const char );
	88	#endif
	89	#ifndef __HAVE_ARCH_STRSPN
	90	extern __kernel_size_t strspn(const char ,const char );
	91	#endif
	92	#ifndef __HAVE_ARCH_STRCSPN
	93	extern __kernel_size_t strcspn(const char ,const char );
	94	#endif
1da177e4 LT	95
	96	#ifndef __HAVE_ARCH_MEMSET
	97	extern void * memset(void *,int,__kernel_size_t);
	98	#endif
	99	#ifndef __HAVE_ARCH_MEMCPY
	100	extern void * memcpy(void ,const void ,__kernel_size_t);
	101	#endif
	102	#ifndef __HAVE_ARCH_MEMMOVE
	103	extern void * memmove(void ,const void ,__kernel_size_t);
	104	#endif
	105	#ifndef __HAVE_ARCH_MEMSCAN
	106	extern void * memscan(void *,int,__kernel_size_t);
	107	#endif
	108	#ifndef __HAVE_ARCH_MEMCMP
	109	extern int memcmp(const void ,const void ,__kernel_size_t);
	110	#endif
	111	#ifndef __HAVE_ARCH_MEMCHR
	112	extern void * memchr(const void *,int,__kernel_size_t);
	113	#endif
	114
dd0fc66f	115	extern char kstrdup(const char s, gfp_t gfp);
1e66df3e	116	extern char kstrndup(const char s, size_t len, gfp_t gfp);
1a2f67b4	117	extern void kmemdup(const void src, size_t len, gfp_t gfp);
543537bd	118
d84d1cc7 JF	119	extern char *argv_split(gfp_t gfp, const char str, int *argcp);
	120	extern void argv_free(char **argv);
	121
34990cf7 DB	122	extern bool sysfs_streq(const char s1, const char s2);
34990cf7 DB	123
4370aa4a LJ	124	#ifdef CONFIG_BINARY_PRINTF
	125	int vbin_printf(u32 bin_buf, size_t size, const char fmt, va_list args);
	126	int bstr_printf(char buf, size_t size, const char fmt, const u32 *bin_buf);
	127	int bprintf(u32 bin_buf, size_t size, const char fmt, ...) __printf(3, 4);
	128	#endif
	129
e108526e AM	130	extern ssize_t memory_read_from_buffer(void to, size_t count, loff_t ppos,
	131	const void *from, size_t available);
	132
66f92cf9 RR	133	/**
	134	* strstarts - does @str start with @prefix?
	135	* @str: string to examine
	136	* @prefix: prefix to look for.
	137	*/
	138	static inline bool strstarts(const char str, const char prefix)
	139	{
	140	return strncmp(str, prefix, strlen(prefix)) == 0;
	141	}
1da177e4 LT	142	#endif
1da177e4 LT	143	#endif /* _LINUX_STRING_H_ */