NAME

       fmt_asn1derlength - encode unsigned integer like ASN.1 DER length

SYNTAX

       #include <fmt.h>

       size_t fmt_asn1derlength(char *dest,unsigned long long source);

DESCRIPTION

       fmt_asn1derlength  encodes  an  unsigned  integer  using  the  ASN.1  DER for encoding tag
       lengths.  This can take from 1 byte (0-0x7f) up to sizeof(source)+1 bytes.

       If dest equals FMT_LEN (i.e. is NULL), fmt_asn1derlength returns the number  of  bytes  it
       would have written.

       For  convenience,  fmt.h  defines  the  integer FMT_ASN1LENGTH to be big enough to contain
       every possible fmt_asn1derlength output.

SEE ALSO

       scan_asn1derlength(3)

                                                                             fmt_asn1derlength(3)