mbedtls_asn1_write_len() function
Write a length field in ASN.1 format.
Syntax
int mbedtls_asn1_write_len( unsigned char **p,
unsigned char *start,
size_t len );
Arguments
p
The reference to the current position pointer.
start
The start of the buffer, for bounds-checking.
len
The length value to write.
Return value
The number of bytes written to \p p on success. A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure.
Notes
This function works backwards in data buffer.