Copyright (c) 1983, 1991, 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.
3. 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.
.Dd June 4, 1993 .Dt GETPEERNAME 2 .Os .Sh NAME .Nm getpeername .Nd get name of connected peer .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/types.h n sys/socket.h .Ft int .Fn getpeername "int s" "struct sockaddr * restrict name" "socklen_t * restrict namelen" .Sh DESCRIPTION The .Fn getpeername system call returns the name of the peer connected to socket .Fa s . The .Fa namelen argument should be initialized to indicate the amount of space pointed to by .Fa name . On return it contains the actual size of the name returned (in bytes). The name is truncated if the buffer provided is too small. .Sh RETURN VALUES .Rv -std getpeername .Sh ERRORS The call succeeds unless: l -tag -width Er t Bq Er EBADF The argument .Fa s is not a valid descriptor. t Bq Er ECONNRESET The connection has been reset by the peer. t Bq Er EINVAL The value of the .Fa namelen argument is not valid. t Bq Er ENOTSOCK The argument .Fa s is a file, not a socket. t Bq Er ENOTCONN The socket is not connected. t Bq Er ENOBUFS Insufficient resources were available in the system to perform the operation. t Bq Er EFAULT The .Fa name argument points to memory not in a valid part of the process address space. .El .Sh SEE ALSO .Xr accept 2 , .Xr bind 2 , .Xr getsockname 2 , .Xr socket 2 .Sh HISTORY The .Fn getpeername system call appeared in x 4.2 .
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.
3. 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.
.Dd June 4, 1993 .Dt GETPEERNAME 2 .Os .Sh NAME .Nm getpeername .Nd get name of connected peer .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/types.h n sys/socket.h .Ft int .Fn getpeername "int s" "struct sockaddr * restrict name" "socklen_t * restrict namelen" .Sh DESCRIPTION The .Fn getpeername system call returns the name of the peer connected to socket .Fa s . The .Fa namelen argument should be initialized to indicate the amount of space pointed to by .Fa name . On return it contains the actual size of the name returned (in bytes). The name is truncated if the buffer provided is too small. .Sh RETURN VALUES .Rv -std getpeername .Sh ERRORS The call succeeds unless: l -tag -width Er t Bq Er EBADF The argument .Fa s is not a valid descriptor. t Bq Er ECONNRESET The connection has been reset by the peer. t Bq Er EINVAL The value of the .Fa namelen argument is not valid. t Bq Er ENOTSOCK The argument .Fa s is a file, not a socket. t Bq Er ENOTCONN The socket is not connected. t Bq Er ENOBUFS Insufficient resources were available in the system to perform the operation. t Bq Er EFAULT The .Fa name argument points to memory not in a valid part of the process address space. .El .Sh SEE ALSO .Xr accept 2 , .Xr bind 2 , .Xr getsockname 2 , .Xr socket 2 .Sh HISTORY The .Fn getpeername system call appeared in x 4.2 .