Heimdal wind library

Functions
int	wind_punycode_label_toascii (const uint32_t *in, size_t in_len, char *out, size_t *out_len)
int	wind_stringprep (const uint32_t *in, size_t in_len, uint32_t *out, size_t *out_len, wind_profile_flags flags)
int	wind_profile (const char *name, wind_profile_flags *flags)
int	wind_utf8ucs4 (const char *in, uint32_t *out, size_t *out_len)
int	wind_utf8ucs4_length (const char *in, size_t *out_len)
int	wind_ucs4utf8 (const uint32_t *in, size_t in_len, char *out, size_t *out_len)
int	wind_ucs4utf8_length (const uint32_t *in, size_t in_len, size_t *out_len)
int	wind_ucs2read (const void *ptr, size_t len, unsigned int *flags, uint16_t *out, size_t *out_len)
int	wind_ucs2write (const uint16_t *in, size_t in_len, unsigned int *flags, void *ptr, size_t *out_len)
int	wind_utf8ucs2 (const char *in, uint16_t *out, size_t *out_len)
int	wind_utf8ucs2_length (const char *in, size_t *out_len)
int	wind_ucs2utf8 (const uint16_t *in, size_t in_len, char *out, size_t *out_len)
int	wind_ucs2utf8_length (const uint16_t *in, size_t in_len, size_t *out_len)

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Detailed Description

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Function Documentation

int wind_profile	(	const char *	name,
		wind_profile_flags *	flags
	)

Try to find the profile given a name.

Parameters:

	name	name of the profile.
	flags	the resulting profile.

Returns:

returns 0 on success, an wind error code otherwise

int wind_punycode_label_toascii	(	const uint32_t *	in,
		size_t	in_len,
		char *	out,
		size_t *	out_len
	)

Convert an UCS4 string to a puny-coded DNS label string suitable when combined with delimiters and other labels for DNS lookup.

Parameters:

	in	an UCS4 string to convert
	in_len	the length of in.
	out	the resulting puny-coded string. The string is not NUL terminatied.
	out_len	before processing out_len should be the length of the out variable, after processing it will be the length of the out string.

Returns:

returns 0 on success, an wind error code otherwise

int wind_stringprep	(	const uint32_t *	in,
		size_t	in_len,
		uint32_t *	out,
		size_t *	out_len,
		wind_profile_flags	flags
	)

Process a input UCS4 string according a string-prep profile.

Parameters:

	in	input UCS4 string to process
	in_len	length of the input string
	out	output UCS4 string
	out_len	length of the output string.
	flags	stringprep profile.

Returns:

returns 0 on success, an wind error code otherwise

int wind_ucs2read	(	const void *	ptr,
		size_t	len,
		unsigned int *	flags,
		uint16_t *	out,
		size_t *	out_len
	)

Read in an UCS2 from a buffer.

Parameters:

	ptr	The input buffer to read from.
	len	the length of the input buffer.
	flags	Flags to control the behavior of the function.
	out	the output UCS2, the array must be at least out/2 long.
	out_len	the output length

Returns:

returns 0 on success, an wind error code otherwise.

if len is zero, flags are unchanged

if len is odd, WIND_ERR_LENGTH_NOT_MOD2 is returned

If the flags WIND_RW_BOM is set, check for BOM. If not BOM is found, check is LE/BE flag is already and use that otherwise fail with WIND_ERR_NO_BOM. When done, clear WIND_RW_BOM and the LE/BE flag and set the resulting LE/BE flag.

int wind_ucs2utf8	(	const uint16_t *	in,
		size_t	in_len,
		char *	out,
		size_t *	out_len
	)

Convert an UCS2 string to a UTF-8 string.

Parameters:

	in	an UCS2 string to convert.
	in_len	the length of the in UCS2 string.
	out	the resulting UTF-8 strint, must be at least wind_ucs2utf8_length() long. If out is NULL, the function will calculate the needed space for the out variable (just like wind_ucs2utf8_length()).
	out_len	before processing out_len should be the length of the out variable, after processing it will be the length of the out string.

Returns:

returns 0 on success, an wind error code otherwise

int wind_ucs2utf8_length	(	const uint16_t *	in,
		size_t	in_len,
		size_t *	out_len
	)

Calculate the length of from converting a UCS2 string to an UTF-8 string.

Parameters:

	in	an UCS2 string to convert.
	in_len	an UCS2 string length to convert.
	out_len	the length of the resulting UTF-8 string.

Returns:

returns 0 on success, an wind error code otherwise

int wind_ucs2write	(	const uint16_t *	in,
		size_t	in_len,
		unsigned int *	flags,
		void *	ptr,
		size_t *	out_len
	)

Write an UCS2 string to a buffer.

Parameters:

	in	The input UCS2 string.
	in_len	the length of the input buffer.
	flags	Flags to control the behavior of the function.
	ptr	The input buffer to write to, the array must be at least (in + 1) * 2 bytes long.
	out_len	the output length

Returns:

returns 0 on success, an wind error code otherwise.

If in buffer is not of length be mod 2, WIND_ERR_LENGTH_NOT_MOD2 is returned

On zero input length, flags are preserved

If flags have WIND_RW_BOM set, the byte order mark is written first to the output data

If the output wont fit into out_len, WIND_ERR_OVERRUN is returned

int wind_ucs4utf8	(	const uint32_t *	in,
		size_t	in_len,
		char *	out,
		size_t *	out_len
	)

Convert an UCS4 string to a UTF-8 string.

Parameters:

	in	an UCS4 string to convert.
	in_len	the length input array.
	out	the resulting UTF-8 strint, must be at least wind_ucs4utf8_length() + 1 long (the extra char for the NUL). If out is NULL, the function will calculate the needed space for the out variable (just like wind_ucs4utf8_length()).
	out_len	before processing out_len should be the length of the out variable, after processing it will be the length of the out string.

Returns:

returns 0 on success, an wind error code otherwise

int wind_ucs4utf8_length	(	const uint32_t *	in,
		size_t	in_len,
		size_t *	out_len
	)

Calculate the length of from converting a UCS4 string to an UTF-8 string.

Parameters:

	in	an UCS4 string to convert.
	in_len	the length of UCS4 string to convert.
	out_len	the length of the resulting UTF-8 string.

Returns:

returns 0 on success, an wind error code otherwise

int wind_utf8ucs2	(	const char *	in,
		uint16_t *	out,
		size_t *	out_len
	)

Convert an UTF-8 string to an UCS2 string.

Parameters:

	in	an UTF-8 string to convert.
	out	the resulting UCS2 strint, must be at least wind_utf8ucs2_length() long. If out is NULL, the function will calculate the needed space for the out variable (just like wind_utf8ucs2_length()).
	out_len	before processing out_len should be the length of the out variable, after processing it will be the length of the out string.

Returns:

returns 0 on success, an wind error code otherwise

int wind_utf8ucs2_length	(	const char *	in,
		size_t *	out_len
	)

Calculate the length of from converting a UTF-8 string to a UCS2 string.

Parameters:

	in	an UTF-8 string to convert.
	out_len	the length of the resulting UCS4 string.

Returns:

returns 0 on success, an wind error code otherwise

int wind_utf8ucs4	(	const char *	in,
		uint32_t *	out,
		size_t *	out_len
	)

Convert an UTF-8 string to an UCS4 string.

Parameters:

	in	an UTF-8 string to convert.
	out	the resulting UCS4 strint, must be at least wind_utf8ucs4_length() long. If out is NULL, the function will calculate the needed space for the out variable (just like wind_utf8ucs4_length()).
	out_len	before processing out_len should be the length of the out variable, after processing it will be the length of the out string.

Returns:

returns 0 on success, an wind error code otherwise

int wind_utf8ucs4_length	(	const char *	in,
		size_t *	out_len
	)

Calculate the length of from converting a UTF-8 string to a UCS4 string.

Parameters:

	in	an UTF-8 string to convert.
	out_len	the length of the resulting UCS4 string.

Returns:

returns 0 on success, an wind error code otherwise