X-Git-Url: https://git.saurik.com/apple/libc.git/blobdiff_plain/5b2abdfbf4211b6592cdd02b9507555a0ecbb04b..b5d655f7532a546b54809da387f7467d128a756b:/gen/getpeereid.3

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-.\"
-.\" Copyright (c) 2001 Dima Dorfman.
-.\" 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.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
-.\"
-.\" $FreeBSD: src/lib/libc/gen/getpeereid.3,v 1.2 2001/08/21 19:32:47 dd Exp $
-.\"
-.Dd July 15, 2001
-.Dt GETPEEREID 3
-.Os
-.Sh NAME
-.Nm getpeereid
-.Nd get the effective credentials of a UNIX-domain peer
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In sys/types.h
-.In unistd.h
-.Ft int
-.Fn getpeereid "int s" "uid_t *euid" "gid_t *egid"
-.Sh DESCRIPTION
-The
-.Fn getpeereid
-function returns the effective user and group IDs of the
-peer connected to a
-.Ux Ns -domain
-socket.
-The argument
-.Fa s
-must be a
-.Ux Ns -domain
-socket
-.Pq Xr unix 4
-of type
-.Dv SOCK_STREAM
-on which either
-.Xr connect 2
-or
-.Xr listen 2
-have been called.
-The effective used ID is placed in
-.Fa euid ,
-and the effective group ID in
-.Fa egid .
-.Pp
-The credentials returned to the
-.Xr listen 2
-caller are those of its peer at the time it called
-.Xr connect 2 ;
-the credentials returned to the
-.Xr connect 2
-caller are those of its peer at the time it called
-.Xr listen 2 .
-This mechanism is reliable; there is no way for either side to influence
-the credentials returned to its peer except by calling the appropriate
-system call (i.e., either
-.Xr connect 2
-or
-.Xr listen 2 )
-under different effective credentials.
-.Pp
-One common use of this routine is for a
-.Ux Ns -domain
-server
-to verify the credentials of its client.
-Likewise, the client can verify the credentials of the server.
-.Sh IMPLEMENTATION NOTES
-On
-.Fx ,
-.Fn getpeereid
-is implemented in terms of the
-.Dv LOCAL_PEERCRED
-.Xr unix 4
-socket option.
-.Sh RETURN VALUES
-.Rv -std getpeerid
-.Sh ERRORS
-.Fn getpeerid
-fails if:
-.Bl -tag -width Er
-.It Bq Er EBADF
-The argument
-.Fa s
-is not a valid descriptor.
-.It Bq Er ENOTSOCK
-The argument
-.Fa s
-is a file, not a socket.
-.It Bq Er ENOTCONN
-The argument
-.Fa s
-does not refer to a socket on which
-.Xr connect 2
-or
-.Xr listen 2
-have been called.
-.It Bq Er EINVAL
-The argument
-.Fa s
-does not refer to a socket of type
-.Dv SOCK_STREAM .
-.El
-.Sh SEE ALSO
-.Xr connect 2 ,
-.Xr getpeername 2 ,
-.Xr getsockname 2 ,
-.Xr getsockopt 2 ,
-.Xr listen 2 ,
-.Xr unix 4
-.Sh HISTORY
-The
-.Fn getpeereid
-function appeared in
-.Fx 5.0 .
diff --git a/gen/getpeereid.3 b/gen/getpeereid.3
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+./getpeereid.3
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