Function File_Read

src/file.c:711–729

* Read bytes from a file into a buffer. * * @param index The index given by File_Open() of the file. * @param buffer The buffer to read into. * @param length The amount of bytes to read. * @return The amount of bytes truly read, or 0 if there was a failure. */

 * @return The amount of bytes truly read, or 0 if there was a failure.
 */
uint32 File_Read(uint8 index, void *buffer, uint32 length)
{
	if (index >= FILE_MAX) return 0;
	if (s_file[index].fp == NULL) return 0;
	if (s_file[index].position >= s_file[index].size) return 0;
	if (length == 0) return 0;

	if (length > s_file[index].size - s_file[index].position) length = s_file[index].size - s_file[index].position;

	if (fread(buffer, length, 1, s_file[index].fp) != 1) {
		Error("Read error\n");
		File_Close(index);

		length = 0;
	}

	s_file[index].position += length;
	return length;
}

/**
 * Read a 16bit unsigned from the file (written on disk in Little endian)