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