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(), read(), recv(), recvfrom(), recvmsg(), select(), send(), sendto(), setsockopt(), socket(), write(), the Base Definitions volume of IEEE Std 1003.1-2001, <sys/socket.h>
First released in Issue 6. Derived from the XNS, Issue 5.2 specification.