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git://git.code.sf.net/p/cdesktopenv/code
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100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* 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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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser 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 Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/*%% (c) Copyright 1993, 1994 Hewlett-Packard Company */
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/*%% (c) Copyright 1993, 1994 International Business Machines Corp. */
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/*%% (c) Copyright 1993, 1994 Sun Microsystems, Inc. */
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/*%% (c) Copyright 1993, 1994 Novell, Inc. */
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/*%% $XConsortium: isapplmr.c /main/3 1995/10/23 11:35:25 rswiston $ */
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#ifndef lint
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static char sccsid[] = "@(#)isapplmr.c 1.5 89/07/17 Copyr 1988 Sun Micro";
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#endif
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/*
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* Copyright (c) 1988 by Sun Microsystems, Inc.
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*/
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/*
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* isapplmr.c
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*
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* Description:
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* Read Application magic string
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*/
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#include "isam_impl.h"
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#include <sys/file.h>
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#include <sys/time.h>
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#include "isam_impl.h"
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/*
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* string = isapplmr(isfd)
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*
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* Isapplmr() returns the aplication magic string written to the ISAM file
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* by isapplmw() function. No magic string is returned as "". The value
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* of -1 returned indicates an error (iserrno is set).
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*
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*/
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int
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_isapplmr(int isfd, char *buffer)
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{
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register Fab *fab;
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Fcb *fcb = NULL;
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char cntl_page[CP_NKEYS_OFF];
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/*
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* Get File Access Block.
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*/
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if ((fab = _isfd_find(isfd)) == NULL) {
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_setiserrno2(ENOTOPEN, '9', '0');
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return (ISERROR);
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}
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/*
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* Check that the open mode was ISINPUT, or ISINOUT.
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*/
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if (fab->openmode != OM_INPUT && fab->openmode != OM_INOUT) {
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_setiserrno2(ENOTOPEN, '9', '0');
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return (ISERROR);
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}
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_isam_entryhook();
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/*
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* Get FCB corresponding to the isfhandle handle.
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*/
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if ((fcb = _openfcb(&fab->isfhandle, &fab->errcode)) == NULL) {
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_isam_exithook();
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return (ISERROR);
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}
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_isseekpg(fcb->datfd, ISCNTLPGOFF);
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(void)read(fcb->datfd, cntl_page, sizeof(cntl_page));
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strncpy(buffer, cntl_page + CP_APPLMAGIC_OFF, CP_APPLMAGIC_LEN);
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_amseterrcode(&fab->errcode, ISOK);
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_isam_exithook();
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_seterr_errcode(&fab->errcode);
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return (ISOK); /* Successful write */
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}
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