bind(3N-xs) (X/OPEN SOCKETS) bind(3N-xs)
NAME
bind - bind a name to a socket
SYNOPSIS
cc [flag ...] file ... -lxnet [library ...]
#include <sys/socket.h>
int bind(int socket, const struct sockaddr *address,
sizet addresslen);
DESCRIPTION
The bind function assigns an address to an unnamed socket. Sockets
created with socket function are initially unnamed; they are identi-
fied only by their address family.
The function takes the following arguments:
socket Specifies the file descriptor of the socket to be
bound.
address Points to a sockaddr structure containing the
address to be bound to the socket. The length and
format of the address depend on the address family
of the socket.
addresslen Specifies the length of the sockaddr structure
pointed to by the address argument.
RETURN VALUE
Upon successful completion, bind returns 0. Otherwise, -1 is returned
and errno is set to indicate the error.
ERRORS
The bind function will fail if:
EBADF The socket argument is not a valid file descriptor.
ENOTSOCK The socket argument does not refer to a socket.
EADDRNOTAVAIL The specified address is not available from the
local machine.
EADDRINUSE The specified address is already in use.
EINVAL The socket is already bound to an address, and the
protocol does not support binding to a new address;
or the socket has been shut down.
EACCES The specified address is protected and the current
user does not have permission to bind to it.
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bind(3N-xs) (X/OPEN SOCKETS) bind(3N-xs)
EAFNOSUPPORT The specified address is not a valid address for the
address family of the specified socket.
EOPNOTSUPP The socket type of the specified socket does not
support binding to an address.
If the address family of the socket is AFUNIX, then bind will fail
if:
EDESTADDRREQ or EISDIR
The address argument is a null pointer.
EACCES A component of the path prefix denies search permis-
sion, or the requested name requires writing in a
directory with a mode that denies write permission.
ENOTDIR A component of the path prefix of the pathname in
address is not a directory.
ENAMETOOLONG A component of a pathname exceeded {NAMEMAX} char-
acters, or an entire pathname exceeded {PATHMAX}
characters.
ENOENT A component of the pathname does not name an exist-
ing file or the pathname is an empty string.
ELOOP Too many symbolic links were encountered in
translating the pathname in address.
EIO An I/O error occurred.
EROFS The name would reside on a read-only file system.
The bind function may fail if:
EINVAL The addresslen argument is not a valid length for
the address family.
EISCONN The socket is already connected.
ENAMETOOLONG Pathname resolution of a symbolic link produced an
intermediate result whose length exceeds {PATHMAX}.
ENOBUFS Insufficient resources were available to complete
the call.
ENOSR There were insufficient STREAMS resources for the
operation to complete.
APPLICATION USAGE
An application program can retrieve the assigned socket name with the
getsockname function.
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bind(3N-xs) (X/OPEN SOCKETS) bind(3N-xs)
SEE ALSO
connect(3N-xs), getsockname(3N-xs), listen(3N-xs), socket(3N-xs).
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