Package netaddr :: Package strategy :: Module ipv4

Module ipv4

IPv4 address logic.

Functions

valid_str(addr)
Returns: True if IPv4 address is valid, False otherwise.

str_to_int(addr)
Returns: The equivalent unsigned integer for a given IPv4 address.

int_to_str(int_val, dialect=None)
Returns: The IPv4 presentation (string) format address equivalent to the unsigned integer provided.

int_to_arpa(int_val)
Returns: The reverse DNS lookup for an IPv4 address in network byte order integer form.

int_to_packed(int_val)
Returns: a packed string that is equivalent to value represented by an unsigned integer.

packed_to_int(packed_int)
Returns: An unsigned integer equivalent to value of network address represented by packed binary string.

valid_words(words)

int_to_words(int_val)
Returns: An integer word (octet) sequence that is equivalent to value represented by an unsigned integer.

words_to_int(words)
Returns: An unsigned integer that is equivalent to value represented by word (octet) sequence.

valid_bits(bits)

bits_to_int(bits)

int_to_bits(int_val, word_sep=None)

valid_bin(bin_val)

int_to_bin(int_val)

bin_to_int(bin_val)

Variables

[hide private]

OPT_IMPORTS = True

width = 32

word_size = 8

word_fmt = '%d'

word_sep = '.'

family = 2

family_name = 'IPv4'

version = 4

word_base = 10

max_int = 4294967295

num_words = 4

max_word = 255

__package__ = 'netaddr.strategy'

Function Details

[hide private]

valid_str(addr)

Parameters:

addr - An IPv4 address in presentation (string) format.

Returns:

True if IPv4 address is valid, False otherwise.

str_to_int(addr)

Parameters:

addr - An IPv4 dotted decimal address in string form.

Returns:

The equivalent unsigned integer for a given IPv4 address.

int_to_str(int_val, dialect=None)

Parameters:

int_val - An unsigned integer.
dialect - (unused) Any value passed in is ignored.

Returns:

The IPv4 presentation (string) format address equivalent to the unsigned integer provided.

int_to_arpa(int_val)

Parameters:

int_val - An unsigned integer.

Returns:

The reverse DNS lookup for an IPv4 address in network byte order integer form.

int_to_packed(int_val)

Parameters:

int_val - the integer to be packed.

Returns:

a packed string that is equivalent to value represented by an unsigned integer.

packed_to_int(packed_int)

Parameters:

packed_int - a packed string containing an unsigned integer. It is assumed that string is packed in network byte order.

Returns:

An unsigned integer equivalent to value of network address represented by packed binary string.

int_to_words(int_val)

Parameters:

int_val - An unsigned integer.

Returns:

An integer word (octet) sequence that is equivalent to value represented by an unsigned integer.

words_to_int(words)

Parameters:

words - A list or tuple containing integer octets.

Returns:

An unsigned integer that is equivalent to value represented by word (octet) sequence.