Function

FwupdPlugininput_stream_compute_crc32

since: 2.0.0

Declaration [src]

gboolean
fu_input_stream_compute_crc32 (
  GInputStream* stream,
  guint32* crc,
  guint32 polynomial,
  GError** error
)

Description [src]

Returns the cyclic redundancy check value for the given memory buffer.

NOTE: The initial crc differs from fu_crc32_full() in that it is inverted (to make it symmetrical, and chainable), so for most uses you want to use the value of 0x0, not 0xFFFFFFFF.

Available since: 2.0.0

Parameters

stream

Type: GInputStream

A GInputStream.

The data is owned by the caller of the function.

crc

Type: guint32*

Initial and final CRC value, typically 0x0

The argument will be set by the function.

polynomial

Type: guint32

CRC polynomial, typically 0xEDB88320

error

Type: GError **

The return location for a recoverable error.

The argument can be NULL.

If the return location is not NULL, then you must initialize it to a NULL GError*.

The argument will be left initialized to NULL by the function if there are no errors.

In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.

Return value

Type: gboolean

TRUE for success.