shutdown - shut down socket send and receive operations
int shutdown(int socket, int how);
The shutdown() function shall cause all or part of a full-duplex connection on the socket associated with the file descriptor socket to be shut down.
The shutdown() function takes the following arguments:
- Specifies the file descriptor of the socket.
- Specifies the type of shutdown. The values are as follows:
- Disables further receive operations.
- Disables further send operations.
- Disables further send and receive operations.
The shutdown() function disables subsequent send and/or receive operations on a socket, depending on the value of the how argument.
Upon successful completion, shutdown() shall return 0; otherwise, -1 shall be returned and errno set to indicate the error.
The shutdown() function shall fail if:
- The socket argument is not a valid file descriptor.
- The how argument is invalid.
- The socket is not connected.
- The socket argument does not refer to a socket.
The shutdown() function may fail if:
- Insufficient resources were available in the system to perform the operation.
getsockopt, pselect, read, recv, recvfrom, recvmsg, send, sendto, setsockopt, socket, write
First released in Issue 6. Derived from the XNS, Issue 5.2 specification.
return to top of page