scan_uuencoded - decode uuencoded data

       scan_uuencoded  decodes uuencoded 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 uuencoded data is sometimes permitted to contain whitespace characters or new lines.
       This function will not allow those and return the decoded data until then.

       uudecoding  works  on  lines,  and the first byte in each line contains the length of the line (encoded).
       scan_uuencoded expects one such line as input, and it will decode all the bytes in it.

       uuencoded data can contain bytes from 0x21 to 0x96, which means it is  not  "string  safe"  (can  contain
       single and double quotes and backslash).

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

       scan_uuencoded("&9FYO<F0*",buf,&i) -> return 9, i=5, buf="fnord"

       scan_uuencoded - decode uuencoded data

       scan_uuencoded returns the number of bytes successfully scanned and processed from src.

scan_xlong(3), scan_8long(3), fmt_ulong(3)

                                                                                               scan_uuencoded(3)

#include<libowfat/textcode.h>

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