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scan_base64(3)		   Library Functions Manual		scan_base64(3)

NAME
       scan_base64 - decode base64 encoded data

SYNTAX
       #include	<libowfat/textcode.h>

       size_t scan_base64(const	char *src,char *dest,size_t* destlen);

DESCRIPTION
       scan_base64  decodes  base64  encoded data from src into	dest.  It will
       stop when it encounters any non-valid input characters.	It  will  then
       write the number	of decoded bytes in dest into *destlen,	and return the
       number of bytes decoded from src.

       Note that real world base64 encoded data	is sometimes permitted to con-
       tain  whitespace	 characters or new lines. This function	will not allow
       those and return	the decoded data until then.

       Many base64 variants demand padding in the last block. Some don't. This
       implementation  will  consume padding if	it is there, but will not com-
       plain if	it is not.

       dest can	be NULL. destlen can be	NULL. dest can be src.

RETURN VALUE
       scan_base64 returns the number of bytes successfully scanned  and  pro-
       cessed from src.

EXAMPLES
       scan_base64("Zm5vcmQ=",buf,&i) -> return	8, i=5,	buf="fnord"

SEE ALSO
       scan_base64url(3), scan_xlong(3), scan_8long(3),	fmt_ulong(3)

								scan_base64(3)

NAME | SYNTAX | DESCRIPTION | RETURN VALUE | EXAMPLES | SEE ALSO

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