{"id":7766,"date":"2025-11-01T01:52:51","date_gmt":"2025-11-01T01:52:51","guid":{"rendered":"https:\/\/www.raxpower.com\/?page_id=7766"},"modified":"2026-08-12T04:22:11","modified_gmt":"2026-08-12T04:22:11","slug":"socket-socket","status":"publish","type":"page","link":"https:\/\/www.raxpower.com\/fr\/link-fitting\/socket-socket\/","title":{"rendered":"Douille douille"},"content":{"rendered":"
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Socket Socket<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>
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The socket() function creates an unbound socket in a communications domain, returning a file descriptor for subsequent network operations. It requires three arguments: the address family (such as AF_INET for IPv4 or AF_INET6 for IPv6), the socket type (like SOCK_STREAM for reliable byte streams or SOCK_DGRAM for connectionless datagrams), and the protocol that specifies the transport mechanism. Setting the protocol to zero typically selects the default protocol for the given address family and type, such as Transmission Control Protocol (TCP) for SOCK_STREAM.<\/p>\n

Upon successful execution, socket() returns a non-negative integer representing the socket descriptor used in subsequent network operations. If an error occurs, a value of -1 or INVALID_SOCKET is returned, with error codes indicating issues such as unsupported address families (WSAEAFNOSUPPORT), insufficient resources, or incompatible protocols (WSAEPROTONOSUPPORT).<\/p>\n

The function provides a standardized interface across different implementations, including Berkeley Socket Distribution (BSD) 4.3, UNIX 98 compatible interfaces, and Windows Sockets (Winsock). These parameters allow applications to tailor the socket to specific networking requirements, supporting various protocols including IPv4, IPv6, Bluetooth, and reliable multicast.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>