dec_stream_header

Name:Decode the Stream Header field (the first 12 bytes of the .xz Stream).

Proto:static enum xz_ret dec_stream_header(struct xz_dec *s)

Type:enum xz_ret

Parameter:

Type	Parameter	Name
struct xz_dec *	s

389

If Not FIXME: Not all basic memory functions are provided in architecture-specific* files (yet). We define our own versions here for now, but this should be* only a temporary solution.* memeq and memzero are not used much and any remotely sane implementation Then Return XZ_FORMAT_ERROR

392

If xz_crc32(buf + HEADER_MAGIC_SIZE, 2, 0) != get_le32(buf + HEADER_MAGIC_SIZE + 2) Then Return XZ_DATA_ERROR

396

If buf[HEADER_MAGIC_SIZE] != 0 Then Return XZ_OPTIONS_ERROR

405

Type of the integrity check calculated from uncompressed data = buf[HEADER_MAGIC_SIZE + 1]

414

If Type of the integrity check calculated from uncompressed data > XZ_CHECK_CRC32 Then Return XZ_OPTIONS_ERROR

418

Return XZ_OK

**Caller**
Name	Describe
dec_main

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion