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shutdown(2) System Calls Manual shutdown(2) NAME shutdown - Shuts down socket send and receive operations SYNOPSIS #include <sys/socket.h> int shutdown ( int socket, int how ); STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: shutdown(): XPG4-UNIX Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. PARAMETERS Specifies the file descriptor of the socket. Specifies the type of shutdown. Values are: To disable further receive operations To disable further send operations To disable further send operations and receive operations DESCRIPTION The shutdown() function disables receive and/or send operations on the specified socket. RETURN VALUES Upon successful completion, a value of 0 (zero) is returned. Other- wise, a value of -1 is returned and errno is set to indicate the error. ERRORS If the shutdown() function fails, errno may be set to one of the fol- lowing values: The socket parameter is not valid. The how argument is invalid. The socket is not connected. The socket parameter refers to a file, not a socket. RELATED INFORMATION Functions: getsockopt(2), read(2), recv(2), recvfrom(2), recvmsg(2), select(2), send(2), sendto(2), setsockopt(2), socket(2), write(2) Standards: standards(5) delim off shutdown(2)