1.\" Copyright (c) 2013 The FreeBSD Foundation 2.\" All rights reserved. 3.\" 4.\" This documentation was written by Pawel Jakub Dawidek under sponsorship from 5.\" the FreeBSD Foundation. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" $FreeBSD$ 29.\" 30.Dd February 13, 2013 31.Dt BINDAT 2 32.Os 33.Sh NAME 34.Nm bindat 35.Nd assign a local protocol address to a socket 36.Sh LIBRARY 37.Lb libc 38.Sh SYNOPSIS 39.In sys/types.h 40.In sys/socket.h 41.Pp 42.In fcntl.h 43.Ft int 44.Fn bindat "int fd" "int s" "const struct sockaddr *addr" "socklen_t addrlen" 45.Sh DESCRIPTION 46The 47.Fn bindat 48system call assigns the local protocol address to a socket. 49When passed the special value 50.Dv AT_FDCWD 51in the 52.Fa fd 53parameter, the behavior is identical to a call to 54.Xr bind 2 . 55Otherwise, 56.Fn bindat 57works like the 58.Xr bind 2 59system call with two exceptions: 60.Pp 61.Bl -enum -offset indent -compact 62.It 63It is limited to sockets in the PF_LOCAL domain. 64.Pp 65.It 66If the file path stored in the 67.Fa sun_path 68field of the sockaddr_un structure is a relative path, it is located relative 69to the directory associated with the file descriptor 70.Fa fd . 71.El 72.Sh RETURN VALUES 73.Rv -std bindat 74.Sh ERRORS 75The 76.Fn bindat 77system call may fail with the same errors as the 78.Xr bind 2 79system call or with the following errors: 80.Bl -tag -width Er 81.It Bq Er EBADF 82The 83.Fa sun_path 84field does not specify an absolute path and the 85.Fa fd 86argument is neither 87.Dv AT_FDCWD 88nor a valid file descriptor. 89.It Bq Er ENOTDIR 90The 91.Fa sun_path 92field is not an absolute path and 93.Fa fd 94is neither 95.Dv AT_FDCWD 96nor a file descriptor associated with a directory. 97.El 98.Sh SEE ALSO 99.Xr bind 2 , 100.Xr connectat 2 , 101.Xr socket 2 , 102.Xr unix 4 103.Sh AUTHORS 104The 105.Nm 106was developed by 107.An Pawel Jakub Dawidek Aq Mt [email protected] 108under sponsorship from the FreeBSD Foundation. 109