Function gnunet_sys::GNUNET_IDENTITY_read_signature_from_buffer

pub unsafe extern "C" fn GNUNET_IDENTITY_read_signature_from_buffer(
    sig: *mut GNUNET_IDENTITY_Signature, 
    buffer: *const c_void, 
    len: usize
) -> isize

Reads a #GNUNET_IDENTITY_Signature from a compact buffer. The buffer has to contain at least the compacted length of a #GNUNET_IDENTITY_Signature in bytes. If the buffer is too small, the function returns -1 as error. If the buffer does not contain a valid key, it returns -2 as error.

@param sig the signature @param buffer the buffer @param len the length of buffer @return -1 or -2 on error, else the amount of bytes read from the buffer