sockets.hpp File Reference

#include <cstddef>
#include <cstdint>
#include <cstring>
#include <stdexcept>
#include <ifaddrs.h>
#include <netinet/ip6.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/un.h>
#include <w/handle.hpp>
#include <w/iterators.hpp>
#include <w/posix.hpp>

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Classes
struct	w::ipv4_address
	Wraps struct sockaddr_in, adding constructors for convenient initialization. More...
struct	w::ipv6_address
	Wraps struct sockaddr_in6, adding constructors for convenient initialization. More...
struct	w::unix_domain_address
	Wraps struct sockaddr_in, adding constructors for convenient initialization. More...

Namespaces
namespace	w

Functions
w::fd	w::accept (int sockfd, struct sockaddr *addr, socklen_t *addrlen)
	Accepts a connection on a socket. More...
template<typename Address >
w::fd	w::accept (int sockfd, Address &addr)
	Accepts a connection on a socket. More...
void	w::bind (int sockfd, const struct sockaddr *addr, socklen_t addrlen)
	Binds a socket to an address. More...
template<typename Address >
void	w::bind (int sockfd, const Address &addr)
	Binds a socket. More...
void	w::connect (int sockfd, const struct sockaddr *addr, socklen_t addrlen)
	Connects a socket. More...
template<typename Address >
void	w::connect (int sockfd, const Address &addr)
	Connects a socket. More...
w::handle< struct ifaddrs *, nullptr, ::freeifaddrs >	w::getifaddrs ()
	Gets a pointer to the head of a linked list of the system's network interfaces. More...
int	w::getsockopt (int sockfd, int level, int optname, void *optval=nullptr, socklen_t *optlen=nullptr)
	Gets an option on a socket. More...
template<typename Value >
Value	w::getsockopt (int sockfd, int level, int optname)
	Gets an option on a socket. More...
unsigned	w::if_nametoindex (const char *ifname)
	Returns the index of the specified network interface. More...
char *	w::inet_ntop (int af, const void *src, char *dst, socklen_t size)
	Converts an IPv4 or IPv6 address to a string. More...
void *	w::inet_pton (int af, const char *src, void *dst)
	Converts an IPv4 or IPv6 address from a string to a binary value. More...
template<typename Address >
Address &	w::inet_pton (int af, const char *src, Address &dst)
	Converts an IPv4 or IPv6 address from a string to a binary value. More...
void	w::listen (int sockfd, int backlog)
	Puts a socket in a listening state. More...
std::size_t	w::recv (int sockfd, void *buf, std::size_t len, int flags=0)
	Receives a message from a socket. More...
std::size_t	w::recvmsg (int sockfd, struct msghdr *msg, int flags=0)
	Receives a message from a socket. More...
std::size_t	w::recvfrom (int sockfd, void *buf, std::size_t len, int flags, struct sockaddr *src_addr=nullptr, socklen_t *addrlen=nullptr)
	Receives a message from a socket. More...
template<typename Address >
std::size_t	w::recvfrom (int sockfd, void *buf, std::size_t len, int flags, Address &src_addr)
	Receives a message from a socket. More...
std::size_t	w::send (int sockfd, const void *buf, std::size_t len, int flags=0)
	Sends a message on a socket. More...
std::size_t	w::sendmsg (int sockfd, const struct msghdr *msg, int flags=0)
	Sends a message on a socket. More...
std::size_t	w::sendto (int sockfd, const void *buf, std::size_t len, int flags, const struct sockaddr *dest_addr, socklen_t addrlen)
	Sends a message on a socket. More...
template<typename Address >
std::size_t	w::sendto (int sockfd, const void *buf, std::size_t len, int flags, const Address &dest_addr)
	Sends a message on a socket. More...
int	w::setsockopt (int sockfd, int level, int optname, const void *optval=nullptr, socklen_t optlen=0)
	Sets an option on a socket. More...
template<typename Value >
void	w::setsockopt (int sockfd, int level, int optname, const Value &optval)
	Sets an option on a socket. More...
void	w::shutdown (int sockfd, int how)
	Shuts down part of a full-duplex connection. More...
w::fd	w::socket (int domain, int type, int protocol=0)
	Creates a socket. More...
auto	begin (const struct ifaddrs *ptr) noexcept
	Returns an input iterator pointing to the struct ifaddrs entry ptr. More...
auto	end (const struct ifaddrs *ptr) noexcept
	Returns an input iterator pointing to the end of a struct ifaddrs array. More...
bool	operator== (const in6_addr &a, const in6_addr &b) noexcept
	Compares two IPv6 addresses. More...
bool	operator!= (const in6_addr &a, const in6_addr &b) noexcept
	Compares two IPv6 addresses. More...
bool	operator< (const in6_addr &a, const in6_addr &b) noexcept
	Compares two IPv6 addresses. More...

Function Documentation

begin()

auto begin ( const struct ifaddrs *  ptr )

inlinenoexcept

Returns an input iterator pointing to the struct ifaddrs entry ptr.

Parameters

ptr	The struct ifaddrs entry to point to.

Returns

An input iterator.

end()

auto end ( const struct ifaddrs *  ptr )

inlinenoexcept

Returns an input iterator pointing to the end of a struct ifaddrs array.

Parameters

ptr	The struct ifaddrs array to point to the end of.

Returns

An input iterator.

operator!=()

bool operator!= ( const in6_addr &  a, const in6_addr &  b  )

inlinenoexcept

Compares two IPv6 addresses.

Parameters

a	The first address to compare.
b	The second address to compare.

Returns

true if a and b are different addresses.

operator<()

bool operator< ( const in6_addr &  a, const in6_addr &  b  )

inlinenoexcept

Compares two IPv6 addresses.

Parameters

a	The first address to compare.
b	The second address to compare.

Returns

true if a is a lower address than b.

operator==()

bool operator== ( const in6_addr &  a, const in6_addr &  b  )

inlinenoexcept

Compares two IPv6 addresses.

Parameters

a	The first address to compare.
b	The second address to compare.

Returns

true if a and b are the same address.