unbound/sldns/sbuffer.h

312  * ensures BUFFER can contain at least AMOUNT more bytes.  The buffer's
324  * returns a pointer to the data at the indicated position.
326  * \param[in] at position
330 sldns_buffer_at(const sldns_buffer *buffer, size_t at)
332 	assert(at <= buffer->_limit);
333 	return buffer->_data + at;
337  * returns a pointer to the beginning of the buffer (the data at
349  * returns a pointer to the end of the buffer (the data at the buffer's
361  * returns a pointer to the data at the buffer's current position.
375  * \param[in] at indicated position
379 sldns_buffer_remaining_at(sldns_buffer *buffer, size_t at)
382 	assert(at <= buffer->_limit);
383 	return at < buffer->_limit ? buffer->_limit - at : 0;
399  * checks if the buffer has at least COUNT more bytes available.
403  * \param[in] at indicated position
408 sldns_buffer_available_at(sldns_buffer *buffer, size_t at, size_t count)
410 	return count <= sldns_buffer_remaining_at(buffer, at);
414  * checks if the buffer has count bytes available at the current position
426  * writes the given data to the buffer at the specified position
428  * \param[in] at the position (in number of bytes) to write the data at
433 sldns_buffer_write_at(sldns_buffer *buffer, size_t at, const void *data, size_t count)
435 	assert(sldns_buffer_available_at(buffer, at, count));
436 	memcpy(buffer->_data + at, data, count);
440  * set the given byte to the buffer at the specified position
442  * \param[in] at the position (in number of bytes) to write the data at
448 sldns_buffer_set_at(sldns_buffer *buffer, size_t at, int c, size_t count)
450 	assert(sldns_buffer_available_at(buffer, at, count));
451 	memset(buffer->_data + at, c, count);
469  * copies the given (null-delimited) string to the specified position at the buffer
471  * \param[in] at the position in the buffer
475 sldns_buffer_write_string_at(sldns_buffer *buffer, size_t at, const char *str)
477 	sldns_buffer_write_at(buffer, at, str, strlen(str));
481  * copies the given (null-delimited) string to the current position at the buffer
492  * writes the given byte of data at the given position in the buffer
494  * \param[in] at the position in the buffer
498 sldns_buffer_write_u8_at(sldns_buffer *buffer, size_t at, uint8_t data)
500 	assert(sldns_buffer_available_at(buffer, at, sizeof(data)));
501 	buffer->_data[at] = data;
505  * writes the given byte of data at the current position in the buffer
517  * writes the given 2 byte integer at the given position in the buffer
519  * \param[in] at the position in the buffer
523 sldns_buffer_write_u16_at(sldns_buffer *buffer, size_t at, uint16_t data)
525 	assert(sldns_buffer_available_at(buffer, at, sizeof(data)));
526 	sldns_write_uint16(buffer->_data + at, data);
530  * writes the given 2 byte integer at the current position in the buffer
542  * writes the given 4 byte integer at the given position in the buffer
544  * \param[in] at the position in the buffer
548 sldns_buffer_write_u32_at(sldns_buffer *buffer, size_t at, uint32_t data)
550 	assert(sldns_buffer_available_at(buffer, at, sizeof(data)));
551 	sldns_write_uint32(buffer->_data + at, data);
555  * writes the given 6 byte integer at the given position in the buffer
557  * \param[in] at the position in the buffer
561 sldns_buffer_write_u48_at(sldns_buffer *buffer, size_t at, uint64_t data)
563 	assert(sldns_buffer_available_at(buffer, at, 6));
564 	sldns_write_uint48(buffer->_data + at, data);
568  * writes the given 4 byte integer at the current position in the buffer
580  * writes the given 6 byte integer at the current position in the buffer
592  * copies count bytes of data at the given position to the given data-array
594  * \param[in] at the position in the buffer to start
599 sldns_buffer_read_at(sldns_buffer *buffer, size_t at, void *data, size_t count)
601 	assert(sldns_buffer_available_at(buffer, at, count));
602 	memcpy(data, buffer->_data + at, count);
606  * copies count bytes of data at the current position to the given data-array
619  * returns the byte value at the given position in the buffer
621  * \param[in] at the position in the buffer
625 sldns_buffer_read_u8_at(sldns_buffer *buffer, size_t at)
627 	assert(sldns_buffer_available_at(buffer, at, sizeof(uint8_t)));
628 	return buffer->_data[at];
632  * returns the byte value at the current position in the buffer
645  * returns the 2-byte integer value at the given position in the buffer
647  * \param[in] at position in the buffer
651 sldns_buffer_read_u16_at(sldns_buffer *buffer, size_t at)
653 	assert(sldns_buffer_available_at(buffer, at, sizeof(uint16_t)));
654 	return sldns_read_uint16(buffer->_data + at);
658  * returns the 2-byte integer value at the current position in the buffer
671  * returns the 4-byte integer value at the given position in the buffer
673  * \param[in] at position in the buffer
677 sldns_buffer_read_u32_at(sldns_buffer *buffer, size_t at)
679 	assert(sldns_buffer_available_at(buffer, at, sizeof(uint32_t)));
680 	return sldns_read_uint32(buffer->_data + at);
684  * returns the 4-byte integer value at the current position in the buffer