#include <linux/types.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/bug.h>
#include <linux/errno.h>

Functions
int	strnicmp (const char s1, const char s2, size_t len)

	EXPORT_SYMBOL (strnicmp)

int	strcasecmp (const char s1, const char s2)

	EXPORT_SYMBOL (strcasecmp)

int	strncasecmp (const char s1, const char s2, size_t n)

	EXPORT_SYMBOL (strncasecmp)

char *	strcpy (char dest, const char src)

	EXPORT_SYMBOL (strcpy)

char *	strncpy (char dest, const char src, size_t count)

	EXPORT_SYMBOL (strncpy)

size_t	strlcpy (char dest, const char src, size_t size)

	EXPORT_SYMBOL (strlcpy)

char *	strcat (char dest, const char src)

	EXPORT_SYMBOL (strcat)

char *	strncat (char dest, const char src, size_t count)

	EXPORT_SYMBOL (strncat)

size_t	strlcat (char dest, const char src, size_t count)

	EXPORT_SYMBOL (strlcat)

int	strcmp (const char cs, const char ct)

	EXPORT_SYMBOL (strcmp)

int	strncmp (const char cs, const char ct, size_t count)

	EXPORT_SYMBOL (strncmp)

char *	strchr (const char *s, int c)

	EXPORT_SYMBOL (strchr)

char *	strrchr (const char *s, int c)

	EXPORT_SYMBOL (strrchr)

char *	strnchr (const char *s, size_t count, int c)

	EXPORT_SYMBOL (strnchr)

char *	skip_spaces (const char *str)

	EXPORT_SYMBOL (skip_spaces)

char *	strim (char *s)

	EXPORT_SYMBOL (strim)

size_t	strlen (const char *s)

	EXPORT_SYMBOL (strlen)

size_t	strnlen (const char *s, size_t count)

	EXPORT_SYMBOL (strnlen)

size_t	strspn (const char s, const char accept)

	EXPORT_SYMBOL (strspn)

size_t	strcspn (const char s, const char reject)

	EXPORT_SYMBOL (strcspn)

char *	strpbrk (const char cs, const char ct)

	EXPORT_SYMBOL (strpbrk)

char *	strsep (char *s, const char ct)

	EXPORT_SYMBOL (strsep)

bool	sysfs_streq (const char s1, const char s2)

	EXPORT_SYMBOL (sysfs_streq)

int	strtobool (const char s, bool res)

	EXPORT_SYMBOL (strtobool)

void *	memset (void *s, int c, size_t count)

	EXPORT_SYMBOL (memset)

void *	memcpy (void dest, const void src, size_t count)

	EXPORT_SYMBOL (memcpy)

void *	memmove (void dest, const void src, size_t count)

	EXPORT_SYMBOL (memmove)

int	memcmp (const void cs, const void ct, size_t count)

	EXPORT_SYMBOL (memcmp)

void *	memscan (void *addr, int c, size_t size)

	EXPORT_SYMBOL (memscan)

char *	strstr (const char s1, const char s2)

	EXPORT_SYMBOL (strstr)

char *	strnstr (const char s1, const char s2, size_t len)

	EXPORT_SYMBOL (strnstr)

void *	memchr (const void *s, int c, size_t n)

	EXPORT_SYMBOL (memchr)

void *	memchr_inv (const void *start, int c, size_t bytes)

	EXPORT_SYMBOL (memchr_inv)

Function Documentation

EXPORT_SYMBOL ( strnicmp )

EXPORT_SYMBOL ( strcasecmp )

EXPORT_SYMBOL ( strncasecmp )

EXPORT_SYMBOL ( strcpy )

EXPORT_SYMBOL ( strncpy )

EXPORT_SYMBOL ( strlcpy )

EXPORT_SYMBOL ( strcat )

EXPORT_SYMBOL ( strncat )

EXPORT_SYMBOL ( strlcat )

EXPORT_SYMBOL ( strcmp )

EXPORT_SYMBOL ( strncmp )

EXPORT_SYMBOL ( strchr )

EXPORT_SYMBOL ( strrchr )

EXPORT_SYMBOL ( strnchr )

EXPORT_SYMBOL ( skip_spaces )

EXPORT_SYMBOL ( strim )

EXPORT_SYMBOL ( strlen )

EXPORT_SYMBOL ( strnlen )

EXPORT_SYMBOL ( strspn )

EXPORT_SYMBOL ( strcspn )

EXPORT_SYMBOL ( strpbrk )

EXPORT_SYMBOL ( strsep )

EXPORT_SYMBOL ( sysfs_streq )

EXPORT_SYMBOL ( strtobool )

EXPORT_SYMBOL ( memset )

EXPORT_SYMBOL ( memcpy )

EXPORT_SYMBOL ( memmove )

EXPORT_SYMBOL ( memcmp )

EXPORT_SYMBOL ( memscan )

EXPORT_SYMBOL ( strstr )

EXPORT_SYMBOL ( strnstr )

EXPORT_SYMBOL ( memchr )

EXPORT_SYMBOL ( memchr_inv )

void* memchr	(	const void *	s,
		int	c,
		size_t	n
	)

memchr - Find a character in an area of memory. : The memory area : The byte to search for
: The size of the area.

returns the address of the first occurrence of , or NULL if is not found

Definition at line 749 of file string.c.

void* memchr_inv	(	const void *	start,
		int	c,
		size_t	bytes
	)

memchr_inv - Find an unmatching character in an area of memory. : The memory area : Find a character other than c : The size of the area.

returns the address of the first character other than , or NULL if the whole buffer contains just .

Definition at line 782 of file string.c.

int memcmp	(	const void *	cs,
		const void *	ct,
		size_t	count
	)

memcmp - Compare two areas of memory : One area of memory : Another area of memory : The size of the area.

Definition at line 651 of file string.c.

void* memcpy	(	void *	dest,
		const void *	src,
		size_t	count
	)

memcpy - Copy one area of memory to another : Where to copy to : Where to copy from : The size of the area.

You should not use this function to access IO space, use memcpy_toio() or memcpy_fromio() instead.

Definition at line 599 of file string.c.

void* memmove	(	void *	dest,
		const void *	src,
		size_t	count
	)

memmove - Copy one area of memory to another : Where to copy to : Where to copy from : The size of the area.

Unlike memcpy(), memmove() copes with overlapping areas.

Definition at line 620 of file string.c.

void* memscan	(	void *	addr,
		int	c,
		size_t	size
	)

memscan - Find a character in an area of memory. : The memory area : The byte to search for : The size of the area.

returns the address of the first occurrence of , or 1 byte past the area if is not found

Definition at line 674 of file string.c.

void* memset	(	void *	s,
		int	c,
		size_t	count
	)

memset - Fill a region of memory with the given value : Pointer to the start of the area. : The byte to fill the area with : The size of the area.

Do not use memset() to access IO space, use memset_io() instead.

Definition at line 578 of file string.c.

char* skip_spaces ( const char * str )

skip_spaces - Removes leading whitespace from . : The string to be stripped.

Returns a pointer to the first non-whitespace character in .

Definition at line 345 of file string.c.

int strcasecmp	(	const char *	s1,
		const char *	s2
	)

Definition at line 63 of file string.c.

char* strcat	(	char *	dest,
		const char *	src
	)

strcat - Append one NUL-terminated string to another : The string to be appended to : The string to append to it

Definition at line 170 of file string.c.

char* strchr	(	const char *	s,
		int	c
	)

strchr - Find the first occurrence of a character in a string : The string to be searched : The character to search for

Definition at line 294 of file string.c.

int strcmp	(	const char *	cs,
		const char *	ct
	)

strcmp - Compare two strings : One string : Another string

Definition at line 246 of file string.c.

char* strcpy	(	char *	dest,
		const char *	src
	)

strcpy - Copy a NUL terminated string : Where to copy the string to : Where to copy the string from

Definition at line 97 of file string.c.

size_t strcspn	(	const char *	s,
		const char *	reject
	)

strcspn - Calculate the length of the initial substring of which does not contain letters in : The string to be searched : The string to avoid

Definition at line 445 of file string.c.

char* strim ( char * s )

strim - Removes leading and trailing whitespace from . : The string to be stripped.

Note that the first trailing whitespace is replaced with a NUL-terminator in the given string . Returns a pointer to the first non-whitespace character in .

Definition at line 361 of file string.c.

size_t strlcat	(	char *	dest,
		const char *	src,
		size_t	count
	)

strlcat - Append a length-limited, NUL-terminated string to another : The string to be appended to : The string to append to it : The size of the destination buffer.

Definition at line 219 of file string.c.

size_t strlcpy	(	char *	dest,
		const char *	src,
		size_t	size
	)

strlcpy - Copy a NUL terminated string into a sized buffer : Where to copy the string to : Where to copy the string from : size of destination buffer

Compatible with *BSD: the result is always a valid NUL-terminated string that fits in the buffer (unless, of course, the buffer size is zero). It does not pad out the result like strncpy() does.

Definition at line 149 of file string.c.

size_t strlen ( const char * s )

strlen - Find the length of a string : The string to be sized

Definition at line 384 of file string.c.

int strncasecmp	(	const char *	s1,
		const char *	s2,
		size_t	n
	)

Definition at line 77 of file string.c.

char* strncat	(	char *	dest,
		const char *	src,
		size_t	count
	)

strncat - Append a length-limited, NUL-terminated string to another : The string to be appended to : The string to append to it : The maximum numbers of bytes to copy

Note that in contrast to strncpy(), strncat() ensures the result is terminated.

Definition at line 193 of file string.c.

char* strnchr	(	const char *	s,
		size_t	count,
		int	c
	)

strnchr - Find a character in a length limited string : The string to be searched : The number of characters to be searched : The character to search for

Definition at line 329 of file string.c.

int strncmp	(	const char *	cs,
		const char *	ct,
		size_t	count
	)

strncmp - Compare two length-limited strings : One string : Another string : The maximum number of bytes to compare

Definition at line 270 of file string.c.

char* strncpy	(	char *	dest,
		const char *	src,
		size_t	count
	)

strncpy - Copy a length-limited, NUL-terminated string : Where to copy the string to : Where to copy the string from : The maximum number of bytes to copy

The result is not NUL-terminated if the source exceeds bytes.

In the case where the length of is less than that of count, the remainder of will be padded with NUL.

Definition at line 122 of file string.c.

int strnicmp	(	const char *	s1,
		const char *	s2,
		size_t	len
	)

strnicmp - Case insensitive, length-limited string comparison : One string : The other string : the maximum number of characters to compare

Definition at line 37 of file string.c.

size_t strnlen	(	const char *	s,
		size_t	count
	)

strnlen - Find the length of a length-limited string : The string to be sized : The maximum number of bytes to search

Definition at line 401 of file string.c.

char* strnstr	(	const char *	s1,
		const char *	s2,
		size_t	len
	)

strnstr - Find the first substring in a length-limited string : The string to be searched : The string to search for : the maximum number of characters to search

Definition at line 721 of file string.c.

char* strpbrk	(	const char *	cs,
		const char *	ct
	)

strpbrk - Find the first occurrence of a set of characters : The string to be searched : The characters to search for

Definition at line 469 of file string.c.

char* strrchr	(	const char *	s,
		int	c
	)

strrchr - Find the last occurrence of a character in a string : The string to be searched : The character to search for

Definition at line 310 of file string.c.

char* strsep	(	char **	s,
		const char *	ct
	)

strsep - Split a string into tokens : The string to be searched : The characters to search for

strsep() updates to point after the token, ready for the next call.

It returns empty tokens, too, behaving exactly like the libc function of that name. In fact, it was stolen from glibc2 and de-fancy-fied. Same semantics, slimmer shape. ;)

Definition at line 496 of file string.c.

size_t strspn	(	const char *	s,
		const char *	accept
	)

strspn - Calculate the length of the initial substring of which only contain letters in : The string to be searched : The string to search for

Definition at line 418 of file string.c.

char* strstr	(	const char *	s1,
		const char *	s2
	)

strstr - Find the first substring in a NUL terminated string : The string to be searched : The string to search for

Definition at line 695 of file string.c.

int strtobool	(	const char *	s,
		bool *	res
	)

strtobool - convert common user inputs into boolean values : input string : result

This routine returns 0 iff the first character is one of 'Yy1Nn0'. Otherwise it will return -EINVAL. Value pointed to by res is updated upon finding a match.

Definition at line 549 of file string.c.

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

sysfs_streq - return true if strings are equal, modulo trailing newline : one string : another string

This routine returns true iff two strings are equal, treating both NUL and newline-then-NUL as equivalent string terminations. It's geared for use with sysfs input strings, which generally terminate with newlines but are compared against values without newlines.

Definition at line 523 of file string.c.

Functions

Function Documentation