Package portage :: Module checksum

Module checksum

source code

Functions

[hide private]

_generate_hash_function(hashtype, hashobject, origin='unknown') source code

sha1hash(filename)
Run a checksum against a file.

source code

sha256hash(filename)
Run a checksum against a file.

source code

rmd160()

source code

rmd160hash(filename)
Run a checksum against a file.

source code

md5hash(filename)
Run a checksum against a file.

source code

getsize(filename)

source code

perform_md5(x, calc_prelink=0)

source code

perform_all(x, calc_prelink=0)

source code

get_valid_checksum_keys()

source code

get_hash_origin(hashtype)

source code

Tuple

verify_all(filename, mydict, calc_prelink=0, strict=0)
Verify all checksums against a file.

source code

Tuple

perform_checksum(filename, hashname='MD5', calc_prelink=0)
Run a specific checksum against a file. source code

Tuple

perform_multiple_checksums(filename, hashes=['MD5'], calc_prelink=0)
Run a group of checksums against a file. source code

Variables

[hide private]

hashfunc_map = {}

hashorigin_map = {'MD5': 'hashlib', 'RMD160': 'hashlib', 'SHA1...

prelink_capable = False

Imports: PRIVATE_PATH, PRELINK_BINARY, HASHING_BLOCKSIZE, os, errno, stat, tempfile, portage, commands, _new_md5, _new_sha1, MD5, SHA, SHA256, RIPEMD, hashlib, fchksum

Function Details

[hide private]

sha1hash(filename)

source code

Run a checksum against a file.

Parameters:

filename (String) - File to run the checksum against

Returns:

The hash and size of the data

sha256hash(filename)

source code

Run a checksum against a file.

Parameters:

filename (String) - File to run the checksum against

Returns:

The hash and size of the data

rmd160hash(filename)

source code

Run a checksum against a file.

Parameters:

filename (String) - File to run the checksum against

Returns:

The hash and size of the data

md5hash(filename)

source code

Run a checksum against a file.

Parameters:

filename (String) - File to run the checksum against

Returns:

The hash and size of the data

verify_all(filename, mydict, calc_prelink=0, strict=0)

source code

Verify all checksums against a file.

Parameters:

filename (String) - File to run the checksums against
calc_prelink (Integer) - Whether or not to reverse prelink before running the checksum
strict (Integer) - Enable/Disable strict checking (which stops exactly at a checksum failure and throws an exception)

Returns: Tuple

Result of the checks and possible message: 1) If size fails, False, and a tuple containing a message, the given size, and the actual size 2) If there is an os error, False, and a tuple containing the system error followed by 2 nulls 3) If a checksum fails, False and a tuple containing a message, the given hash, and the actual hash 4) If all checks succeed, return True and a fake reason

perform_checksum(filename, hashname=`'MD5'`, calc_prelink=0)

source code

Run a specific checksum against a file.

Parameters:

filename (String) - File to run the checksum against
hashname (String) - The type of hash function to run
calc_prelink (Integer) - Whether or not to reverse prelink before running the checksum

Returns: Tuple

The hash and size of the data

perform_multiple_checksums(filename, hashes=`['MD5']`, calc_prelink=0)

source code

Run a group of checksums against a file.

Parameters:

filename (String) - File to run the checksums against
hashes - A list of checksum functions to run against the file
calc_prelink (Integer) - Whether or not to reverse prelink before running the checksum
hashname (List)

Returns: Tuple

A dictionary in the form: return_value[hash_name] = (hash_result,size) for each given checksum

Variables Details

[hide private]

hashorigin_map

Value:

{'MD5': 'hashlib',
 'RMD160': 'hashlib',
 'SHA1': 'hashlib',
 'SHA256': 'hashlib'}

Module checksum

sha1hash(filename)

sha256hash(filename)

rmd160hash(filename)

md5hash(filename)

verify_all(filename, mydict, calc_prelink=0, strict=0)

perform_checksum(filename, hashname='MD5', calc_prelink=0)

perform_multiple_checksums(filename, hashes=['MD5'], calc_prelink=0)

hashorigin_map

perform_checksum(filename, hashname=`'MD5'`, calc_prelink=0)

perform_multiple_checksums(filename, hashes=`['MD5']`, calc_prelink=0)