SHUTDOWN(2) - Linux man page online | System calls
Shut down part of a full-duplex connection.
SHUTDOWN(2) Linux Programmer's Manual SHUTDOWN(2)
Linux 2016-03-15 SHUTDOWN(2)
NAMEshutdown - shut down part of a full-duplex connection
SYNOPSIS#include <sys/socket.h> int shutdown(int sockfd, int how);
DESCRIPTIONThe shutdown() call causes all or part of a full-duplex connection on the socket associ‐ ated with sockfd to be shut down. If how is SHUT_RD, further receptions will be disal‐ lowed. If how is SHUT_WR, further transmissions will be disallowed. If how is SHUT_RDWR, further receptions and transmissions will be disallowed.
RETURN VALUEOn success, zero is returned. On error, -1 is returned, and errno is set appropriately.
ERRORSEBADF sockfd is not a valid file descriptor. EINVAL An invalid value was specified in how (but see BUGS). ENOTCONN The specified socket is not connected. ENOTSOCK The file descriptor sockfd does not refer to a socket.
CONFORMING TOPOSIX.1-2001, POSIX.1-2008, 4.4BSD (shutdown() first appeared in 4.2BSD).
NOTESThe constants SHUT_RD, SHUT_WR, SHUT_RDWR have the value 0, 1, 2, respectively, and are defined in <sys/socket.h> since glibc-2.1.91.
BUGSChecks for the validity of how are done in domain-specific code, and before Linux 3.7 not all domains performed these checks. Most notably, UNIX domain sockets simply ignored invalid values. This problem was fixed for UNIX domain sockets in Linux 3.7.
SEE ALSOconnect(2), socket(2), socket(7)
COLOPHONThis page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
|This manual||Reference||Other manuals|
close(2) | Config::Model::models::Systemd::Section::Socket(3pm) | errno(2freebsd) | faucet(1) | hose(1) | intro(2freebsd) | iv_fd_pump(3) | lsof(8) | msocket(2viewos) | nc_openbsd(1) | Net::SNPP::Server(3pm) | netpipes(1) | pnscan(1) | recv(2) | rights(4freebsd) | route(4freebsd) | sa(3) | send(2) | shutdown(2freebsd) | signal-safety(7)
|refer to||connect(2) | socket(2) | socket(7)|