root
91 lines
3.5 KiB
Plaintext
Executable File
91 lines
3.5 KiB
Plaintext
Executable File
.\"############################################################################
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.\" $Id: genders_isnode.3,v 1.8 2010-02-02 00:04:34 chu11 Exp $
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.\"############################################################################
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.\" Copyright (C) 2007-2019 Lawrence Livermore National Security, LLC.
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.\" Copyright (C) 2001-2007 The Regents of the University of California.
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.\" Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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.\" Written by Jim Garlick <garlick@llnl.gov> and Albert Chu <chu11@llnl.gov>.
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.\" UCRL-CODE-2003-004.
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.\"
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.\" This file is part of Genders, a cluster configuration database.
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.\" For details, see <http://www.llnl.gov/linux/genders/>.
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.\"
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.\" Genders is free software; you can redistribute it and/or modify it under
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.\" the terms of the GNU General Public License as published by the Free
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.\" Software Foundation; either version 2 of the License, or (at your option)
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.\" any later version.
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.\"
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.\" Genders is distributed in the hope that it will be useful, but WITHOUT ANY
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.\" WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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.\" FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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.\" details.
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.\"
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.\" You should have received a copy of the GNU General Public License along
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.\" with Genders. If not, see <http://www.gnu.org/licenses/>.
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.\"############################################################################
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.TH GENDERS_ISNODE 3 "August 2003" "LLNL" "LIBGENDERS"
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.SH NAME
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genders_isnode, genders_isattr, genders_isattrval \- node, attribute, value check routines
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.SH SYNOPSIS
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.B #include <genders.h>
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.sp
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.BI "int genders_isnode(genders_t handle, const char *node);"
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.sp
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.BI "int genders_isattr(genders_t handle, const char *attr);"
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.sp
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.BI "int genders_isattrval(genders_t handle, const char *attr, const char *val);"
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.br
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.SH DESCRIPTION
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\fBgenders_isnode()\fR tests if the node pointed to by \fInode\fR is
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listed in the genders file. If \fInode\fR is NULL, the current node
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is tested.
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\fBgenders_isattr()\fR tests if the attribute pointed to by \fIattr\fR
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is listed for some node in the genders file.
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\fBgenders_isattrval()\fR tests if the attribute pointed to by
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\fIattr\fR is equal to the value pointed to by \fIval\fR for some node
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in the genders file.
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.br
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.SH RETURN VALUES
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For \fBgenders_isnode()\fR, if \fInode\fR is listed in the genders
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file, 1 is returned. If it is not listed, 0 is returned.
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For \fBgenders_isattr()\fR, if \fIattr\fR is listed in the genders
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file, 1 is returned. If it is not listed, 0 is returned.
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For \fBgenders_isattrval()\fR, if \fIattr\fR=\fIval\fR is listed in
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the genders file, 1 is returned. If it is not listed, 0 is returned.
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On error, all three return -1 and an error code is returned in
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\fIhandle\fR. The error code can be retrieved via
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.BR genders_errnum (3)
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, and a description of the error code can be retrieved via
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.BR genders_strerror (3).
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Error codes are defined in genders.h.
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.br
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.SH ERRORS
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.TP
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.B GENDERS_ERR_NULLHANDLE
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The \fIhandle\fR parameter is NULL. The genders handle must be
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created with
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.BR genders_handle_create (3).
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.TP
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.B GENDERS_ERR_NOTLOADED
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.BR genders_load_data (3)
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has not been called to load genders data.
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.TP
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.B GENDERS_ERR_PARAMETERS
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An incorrect parameter has been passed in.
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.TP
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.B GENDERS_ERR_MAGIC
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\fIhandle\fR has an incorrect magic number. \fIhandle\fR does not
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point to a genders handle or \fIhandle\fR has been destroyed by
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.BR genders_handle_destroy (3).
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.br
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.SH FILES
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/usr/include/genders.h
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.SH SEE ALSO
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libgenders(3), genders_handle_create(3), genders_load_data(3),
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genders_errnum(3), genders_strerror(3)
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