protocols/ipv4/ipv4_address.cpp

24 /*!	Routing utility function: copies address \a from into a new address
26 	If \a replaceWithZeros is set \a from will be replaced by an empty
28 	If a \a mask is given it is applied to \a from (such that \a to is the
29 	result of \a from & \a mask).
32 	\return B_BAD_VALUE if any of \a from or \a mask refers to an uninitialized
37 ipv4_copy_address(const sockaddr *from, sockaddr **to,
49 		if (from == NULL)
51 		if (from->sa_len == 0 || (mask != NULL && mask->sa_len == 0))
53 		if (from->sa_family != AF_INET)
60 		memcpy(*to, from, sizeof(sockaddr_in));
113 	\return false if \a address is NULL, or with family different from AF_INET
246 	// A mask (from LSB) starts with zeros, after the first one, only ones
342 /*!	Sets \a address to \a from.
343 	\return B_OK if \a from has been copied into \a address
344 	\return B_BAD_VALUE if either \a address or \a from is NULL or if the
345 			address given in from has not been initialized
346 	\return B_MISMATCHED_VALUES if from is not of family AF_INET
349 ipv4_set_to(sockaddr *address, const sockaddr *from)
351 	if (address == NULL || from == NULL || from->sa_len == 0)
354 	if (from->sa_family != AF_INET)
357 	memcpy(address, from, sizeof(sockaddr_in));
363 /*!	Updates missing parts in \a address with the values in \a from.
364 	\return B_OK if \a address has been updated from \a from
365 	\return B_BAD_VALUE if either \a address or \a from is NULL or if the
366 			address given in from has not been initialized
367 	\return B_MISMATCHED_VALUES if from is not of family AF_INET
373 	const sockaddr_in *from = (const sockaddr_in *)_from;
375 	if (address == NULL || from == NULL || from->sin_len == 0)
378 	if (from->sin_family != AF_INET)
385 		address->sin_port = from->sin_port;
388 		address->sin_addr.s_addr = from->sin_addr.s_addr;