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187 lines
4.6 KiB
187 lines
4.6 KiB
/*
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* $Id: memo.c,v 1.27 2006/11/22 22:52:25 adridg Exp $
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*
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* memo.c: Translate Pilot memopad data formats
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*
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* Copyright (c) 1996, Kenneth Albanowski
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Library General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library
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* General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "pi-macros.h"
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#include "pi-memo.h"
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/***********************************************************************
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*
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* Function: free_Memo
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*
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* Summary: Frees all record data associated with the Memo database
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*
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* Parameters: Memo_t*
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*
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* Returns: void
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*
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***********************************************************************/
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void
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free_Memo(Memo_t *memo)
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{
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if (memo->text != NULL) {
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free(memo->text);
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memo->text = NULL;
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}
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}
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/***********************************************************************
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*
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* Function: unpack_Memo
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*
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* Summary: Unpack the memo structure from the buffer
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*
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* Parameters: Memo_t*, char* to buffer, length
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*
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* Returns: Length in bytes of the buffer allocated
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*
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***********************************************************************/
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int
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unpack_Memo(Memo_t *memo, const pi_buffer_t *record, memoType type)
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{
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if (type != memo_v1)
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/* Don't support anything else yet */
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return -1;
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if (record == NULL || record->data == NULL || record->used < 1)
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return -1;
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memo->text = strdup((char *) record->data);
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return 0;
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}
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/***********************************************************************
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*
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* Function: pack_Memo
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*
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* Summary: Pack the memo structure into the buffer allocated
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*
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* Parameters: Memo_t*, char* to buffer, length of buffer
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*
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* Returns: buffer length
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*
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***********************************************************************/
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int
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pack_Memo(const Memo_t *memo, pi_buffer_t *record, memoType type)
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{
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size_t destlen = (memo->text ? strlen(memo->text) : 0) + 1;
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if (type != memo_v1)
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/* Don't support anything else yet */
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return -1;
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if (record == NULL)
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return -1;
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pi_buffer_expect(record, destlen);
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record->used = destlen;
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if (memo->text)
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strcpy((char *) record->data, memo->text);
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else
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record->data[0] = 0;
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return 0;
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}
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/***********************************************************************
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*
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* Function: unpack_MemoAppInfo
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*
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* Summary: Unpack the memo AppInfo block structure
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*
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* Parameters: MemoAppInfo_t*, char* to record, record length
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*
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* Returns: effective record length
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*
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***********************************************************************/
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int
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unpack_MemoAppInfo(struct MemoAppInfo *appinfo, const unsigned char *record,
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size_t len)
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{
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int i = unpack_CategoryAppInfo(&appinfo->category, record, len);
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unsigned char *start = record;
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appinfo->type = memo_v1;
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if (!i)
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return i;
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record += i;
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len -= i;
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if (len >= 4) {
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record += 2;
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appinfo->sortByAlpha = get_byte(record);
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record += 2;
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} else {
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appinfo->sortByAlpha = 0;
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}
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return (record - start);
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}
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/***********************************************************************
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*
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* Function: pack_MemoAppInfo
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*
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* Summary: Pack the memo AppInfo block structure
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*
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* Parameters: MemoAppInfo_t*, char* to record, record length
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*
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* Returns: effective record length
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*
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***********************************************************************/
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int
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pack_MemoAppInfo(const MemoAppInfo_t *appinfo, unsigned char *record, size_t len)
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{
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int i;
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unsigned char *start = record;
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i = pack_CategoryAppInfo(&appinfo->category, record, len);
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if (!record)
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return i + 4;
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if (i == 0) /* category pack failed */
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return 0;
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record += i;
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len -= i;
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if (len < 4)
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return (record - start);
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set_short(record, 0); /* gapfill new for 2.0 */
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record += 2;
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set_byte(record, appinfo->sortByAlpha); /* new for 2.0 */
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record++;
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set_byte(record, 0); /* gapfill new for 2.0 */
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record++;
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return (record - start);
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}
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/* vi: set ts=8 sw=4 sts=4 noexpandtab: cin */
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/* ex: set tabstop=4 expandtab: */
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/* Local Variables: */
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/* indent-tabs-mode: t */
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/* c-basic-offset: 8 */
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/* End: */
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