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efi_loader: new function utf8_to_utf16

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Provide a conversion function from utf8 to utf16.

Add missing #include <linux/types.h> in include/charset.h.
Remove superfluous #include <common.h> in lib/charset.c.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt
2017-10-18 18:13:06 +02:00
committed by Alexander Graf
parent 30a0045a54
commit f58c5ecb87
2 changed files with 71 additions and 1 deletions
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15
include/charset.h
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@@ -9,6 +9,8 @@
#ifndef __CHARSET_H_
#define __CHARSET_H_
#include <linux/types.h>
#define MAX_UTF8_PER_UTF16 3
/**
@@ -62,4 +64,17 @@ uint16_t *utf16_strdup(const uint16_t *s);
*/
uint8_t *utf16_to_utf8(uint8_t *dest, const uint16_t *src, size_t size);
/**
* utf8_to_utf16() - Convert an utf8 string to utf16
*
* Converts up to 'size' characters of the utf16 string 'src' to utf8
* written to the 'dest' buffer. Stops at 0x00.
*
* @dest the destination buffer to write the utf8 characters
* @src the source utf16 string
* @size maximum number of utf16 characters to convert
* @return the pointer to the first unwritten byte in 'dest'
*/
uint16_t *utf8_to_utf16(uint16_t *dest, const uint8_t *src, size_t size);
#endif /* __CHARSET_H_ */