97 lines
2.9 KiB
C
97 lines
2.9 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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/* $XConsortium: recread.c /main/2 1996/05/09 04:15:18 drk $ */
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/*
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* COMPONENT_NAME: austext
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*
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* FUNCTIONS: d_recread
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*
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* ORIGINS: 157
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*
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* OBJECT CODE ONLY SOURCE MATERIALS
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*/
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/*-----------------------------------------------------------------------
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recread.c -- db_VISTA current record read module.
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(C) Copyright 1987 by Raima Corporation.
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-----------------------------------------------------------------------*/
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/* ********************** EDIT HISTORY *******************************
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SCR DATE INI DESCRIPTION
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----- --------- --- -----------------------------------------------------
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103 27-Jun-88 RSC Improve generation of single user version
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04-Aug-88 RTK MULTI_TASK changes
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*/
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#include <stdio.h>
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#include "vista.h"
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#include "dbtype.h"
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/* Read contents of current record
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*/
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int
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d_recread(
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char *rec, /* ptr to record area */
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int dbn
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)
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{
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INT rt; /* record type */
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DB_ADDR dba;
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RECORD_ENTRY *rec_ptr;
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DB_ENTER(DB_ID TASK_ID LOCK_SET(RECORD_IO));
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if ( ! dbopen ) RETURN( dberr(S_DBOPEN) );
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/* Make sure we have a current record */
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if ( ! curr_rec )
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RETURN( dberr(S_NOCR) );
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/* set up to allow unlocked read access */
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/* read current record */
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dio_read( curr_rec, (char * *)&crloc, NOPGHOLD);
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if ( db_status != S_OKAY )
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RETURN( db_status );
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/* copy record type from record */
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bytecpy(&rt, crloc, sizeof(INT));
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if ( rt < 0 )
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RETURN( db_status = S_DELETED );
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rec_ptr = &record_table[NUM2INT(rt, rt_offset)];
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/* Copy db_addr from record and check with curr_rec */
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bytecpy(&dba, crloc+sizeof(INT), DB_ADDR_SIZE);
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if ( ADDRcmp(&dba, &curr_rec) != 0 )
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RETURN( dberr(S_INVADDR) );
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/* Copy data from crloc into rec */
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bytecpy(rec, &crloc[rec_ptr->rt_data], rec_ptr->rt_len - rec_ptr->rt_data);
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RETURN( db_status = S_OKAY );
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}
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/* vpp -nOS2 -dUNIX -nBSD -nVANILLA_BSD -nVMS -nMEMLOCK -nWINDOWS -nFAR_ALLOC -f/usr/users/master/config/nonwin recread.c */
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