136 lines
4.2 KiB
Groff
136 lines
4.2 KiB
Groff
.\" Copyright (c) 1992, 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. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 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.
|
|
.\"
|
|
.\" @(#)getnetgrent.3 8.1 (Berkeley) 6/4/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd June 4, 1993
|
|
.Dt GETNETGRENT 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm getnetgrent ,
|
|
.Nm innetgr ,
|
|
.Nm setnetgrent ,
|
|
.Nm endnetgrent
|
|
.Nd netgroup database operations
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In netdb.h
|
|
.Ft int
|
|
.Fn getnetgrent "char **host" "char **user" "char **domain"
|
|
.Ft int
|
|
.Fn innetgr "const char *netgroup" "const char *host" "const char *user" "const char *domain"
|
|
.Ft void
|
|
.Fn setnetgrent "const char *netgroup"
|
|
.Ft void
|
|
.Fn endnetgrent void
|
|
.Sh DESCRIPTION
|
|
These functions operate on the netgroup database file
|
|
.Pa /etc/netgroup
|
|
which is described
|
|
in
|
|
.Xr netgroup 5 .
|
|
The database defines a set of netgroups, each made up of one or more triples:
|
|
.Bd -literal -offset indent
|
|
(host, user, domain)
|
|
.Ed
|
|
that defines a combination of host, user and domain.
|
|
Any of the three fields may be specified as ``wildcards'' that match any
|
|
string.
|
|
.Pp
|
|
The function
|
|
.Fn getnetgrent
|
|
sets the three pointer arguments to the strings of the next member of the
|
|
current netgroup.
|
|
If any of the string pointers are
|
|
.Sy (char *)0
|
|
that field is considered a wildcard.
|
|
.Pp
|
|
The functions
|
|
.Fn setnetgrent
|
|
and
|
|
.Fn endnetgrent
|
|
set the current netgroup and terminate the current netgroup respectively.
|
|
If
|
|
.Fn setnetgrent
|
|
is called with a different netgroup than the previous call, an implicit
|
|
.Fn endnetgrent
|
|
is implied.
|
|
The
|
|
.Fn setnetgrent
|
|
function
|
|
also sets the offset to the first member of the netgroup.
|
|
.Pp
|
|
The function
|
|
.Fn innetgr
|
|
searches for a match of all fields within the specified group.
|
|
If any of the
|
|
.Sy host ,
|
|
.Sy user ,
|
|
or
|
|
.Sy domain
|
|
arguments are
|
|
.Sy (char *)0
|
|
those fields will match any string value in the netgroup member.
|
|
.Sh RETURN VALUES
|
|
The function
|
|
.Fn getnetgrent
|
|
returns 0 for ``no more netgroup members'' and 1 otherwise.
|
|
The function
|
|
.Fn innetgr
|
|
returns 1 for a successful match and 0 otherwise.
|
|
The functions
|
|
.Fn setnetgrent
|
|
and
|
|
.Fn endnetgrent
|
|
have no return value.
|
|
.Sh FILES
|
|
.Bl -tag -width /etc/netgroup -compact
|
|
.It Pa /etc/netgroup
|
|
netgroup database file
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr netgroup 5
|
|
.Sh COMPATIBILITY
|
|
The netgroup members have three string fields to maintain compatibility
|
|
with other vendor implementations, however it is not obvious what use the
|
|
.Sy domain
|
|
string has within
|
|
.Bx .
|
|
.Sh BUGS
|
|
The function
|
|
.Fn getnetgrent
|
|
returns pointers to dynamically allocated data areas that are freed when
|
|
the function
|
|
.Fn endnetgrent
|
|
is called.
|