\brief An error message \param[in] return_value the error return value from [getaddrinfo(3)](\ref man3::getaddrinfo) or [getnameinfo(3)](\ref man3::ge

The name of the wrapped error

\brief Whether the two integers are not equal.

\brief The point `b` steps past `a`.

\brief The offset of `a` relative to `b` \param b the starting point \param a the ending point \returns the number of increments needed to get from `b

\brief Whether the two integers are equal.

equality

\param[in] buffer string/Buffer to be parsed \param[in] datagram_layer_checksum pseudo-checksum from the lower-layer protocol

\param[in,out] p is a NetParser from which the IP fields will be extracted \returns a ParseResult indicating success or the reason for failure \detail

\returns the socket's peer's Address

\param[in] ipaddr the IPv4 address waits for resolving \param[in] dgram the IPv4 datagram queued to be sent push the datagram into the waiting queue r

Attempts to read and parse an IPv4 datagram containing a TCP segment related to the current connection

\brief Read from the underlying AdapterT instance, potentially dropping the read datagram \returns std::optional<TCPSegment> that is empty if the segm

\param[in] limit is the maximum number of bytes to read; fewer bytes may be returned \param[out] str is the string to be read

- If type is IPv4, pushes to the `datagrams_out` queue for later retrieval by the owner. - If type is ARP request, learn a mapping from the "sender" f

< increment read count

\param[in] dgram The datagram to be routed

\param[in] MAC_addr the destination Ethernet Address \param[in] dgram the IPv4 datagram to be sent

\param[in] datagram_layer_checksum pseudo-checksum from the lower-layer protocol

Serialize the IPv4Header to a string (does not recompute the checksum)

Indicate that the stream suffered an error.

@{

Size of the underlying address storage.

\brief Construct from a category, an attempt, and an error code \param[in] category is the category of error \param[in] attempt is what was supposed t

\param[in] ms_since_last_tick number of milliseconds since the last call to this method

\param[in] ms_since_last_tick the number of milliseconds since the last call to this method

< FdAdapterBase::config_mut passthrough

Called periodically when time elapses

\returns A string with the header's contents

\returns A string with the header's contents

\brief number of bytes stored but not yet reassembled

brief Construct from a syscall name and the resulting errno \param[in] attempt is the name of the syscall attempted \param[in] error is the [errno(3)]

\details This function attempts to parse a TCP segment from the IP datagram's payload. If this succeeds, it then checks that the received segment is