mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
521aa90cb8
This also follows r124335-r124336, r225827. PR: 191382 MFC after: 1 week Sponsored by: Nginx, Inc.
141 lines
4.3 KiB
Groff
141 lines
4.3 KiB
Groff
.\" Copyright (c) 1983, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)bind.2 8.1 (Berkeley) 6/4/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd June 26, 2014
|
|
.Dt BIND 2
|
|
.Os
|
|
.Sh NAME
|
|
.Nm bind
|
|
.Nd assign a local protocol address to a socket
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In sys/types.h
|
|
.In sys/socket.h
|
|
.Ft int
|
|
.Fn bind "int s" "const struct sockaddr *addr" "socklen_t addrlen"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn bind
|
|
system call
|
|
assigns the local protocol address to a socket.
|
|
When a socket is created
|
|
with
|
|
.Xr socket 2
|
|
it exists in an address family space but has no protocol address assigned.
|
|
The
|
|
.Fn bind
|
|
system call requests that
|
|
.Fa addr
|
|
be assigned to the socket.
|
|
.Sh NOTES
|
|
Binding an address in the UNIX domain creates a socket in the file
|
|
system that must be deleted by the caller when it is no longer
|
|
needed (using
|
|
.Xr unlink 2 ) .
|
|
.Pp
|
|
The rules used in address binding vary between communication domains.
|
|
Consult the manual entries in section 4 for detailed information.
|
|
.Pp
|
|
For maximum portability, you should always zero the socket address structure
|
|
before populating it and passing it to
|
|
.Fn bind .
|
|
.Sh RETURN VALUES
|
|
.Rv -std bind
|
|
.Sh ERRORS
|
|
The
|
|
.Fn bind
|
|
system call will fail if:
|
|
.Bl -tag -width Er
|
|
.It Bq Er EAGAIN
|
|
Kernel resources to complete the request are
|
|
temporarily unavailable.
|
|
.It Bq Er EBADF
|
|
The
|
|
.Fa s
|
|
argument
|
|
is not a valid descriptor.
|
|
.It Bq Er 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.
|
|
.It Bq Er EINVAL
|
|
The
|
|
.Fa addrlen
|
|
argument is not a valid length for the address family.
|
|
.It Bq Er ENOTSOCK
|
|
The
|
|
.Fa s
|
|
argument
|
|
is not a socket.
|
|
.It Bq Er EADDRNOTAVAIL
|
|
The specified address is not available from the local machine.
|
|
.It Bq Er EADDRINUSE
|
|
The specified address is already in use.
|
|
.It Bq Er EAFNOSUPPORT
|
|
Addresses in the specified address family cannot be used with this socket.
|
|
.It Bq Er EACCES
|
|
The requested address is protected, and the current user
|
|
has inadequate permission to access it.
|
|
.It Bq Er EFAULT
|
|
The
|
|
.Fa addr
|
|
argument is not in a valid part of the user
|
|
address space.
|
|
.El
|
|
.Pp
|
|
The following errors are specific to binding addresses in the UNIX domain.
|
|
.Bl -tag -width EADDRNOTAVA
|
|
.It Bq Er ENOTDIR
|
|
A component of the path prefix is not a directory.
|
|
.It Bq Er ENAMETOOLONG
|
|
A component of a pathname exceeded 255 characters,
|
|
or an entire path name exceeded 1023 characters.
|
|
.It Bq Er ENOENT
|
|
A prefix component of the path name does not exist.
|
|
.It Bq Er ELOOP
|
|
Too many symbolic links were encountered in translating the pathname.
|
|
.It Bq Er EIO
|
|
An I/O error occurred while making the directory entry or allocating the inode.
|
|
.It Bq Er EROFS
|
|
The name would reside on a read-only file system.
|
|
.It Bq Er EISDIR
|
|
An empty pathname was specified.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr connect 2 ,
|
|
.Xr getsockname 2 ,
|
|
.Xr listen 2 ,
|
|
.Xr socket 2
|
|
.Sh HISTORY
|
|
The
|
|
.Fn bind
|
|
system call appeared in
|
|
.Bx 4.2 .
|