Method input

lib_acl_cpp/src/stdlib/sha1.cpp:198–228

* input * * Description: * This function accepts an array of octets as the next portion of * the message. * * Parameters: * message_array: [in] * An array of characters representing the next portion of the * message. * * Returns: * Nothing. * * Comments: * */

 *
 */
void sha1::input(const unsigned char *message_array, unsigned length)
{
	if (!length) {
		return;
	}

	if (computed_ || corrupted_) {
		corrupted_ = true;
		return;
	}

	while (length-- && !corrupted_) {
		message_block_[message_block_index_++] = (*message_array & 0xFF);

		length_low_ += 8;
		length_low_ &= 0xFFFFFFFF;              // Force it to 32 bits
		if (length_low_ == 0) {
			length_high_++;
			length_high_ &= 0xFFFFFFFF;     // Force it to 32 bits
			if (length_high_ == 0) {
				corrupted_ = true;      // Message is too long
			}
		}

		if (message_block_index_ == 64) {
			process_message_block();
		}

		message_array++;
	}
}

/*  
 *  input