1 /*
2 * MP3val - a program for MPEG audio file validation
3 * Copyright (C) 2005-2009 Alexey Kuznetsov (ring0) and Eugen Tikhonov (jetsys)
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 #include "out.h"
21 #include "crossapi.h"
22
23 static int iPrevSize=0;
24
GetLastFrameSize()25 int GetLastFrameSize() {
26 return iPrevSize;
27 }
28
WriteToFile(int hFile,char * baseptr,int index,int bytes,int iFileSize)29 int WriteToFile(int hFile,char *baseptr,int index,int bytes,int iFileSize) {
30 int tmp;
31 int iBytesWritten,iBytesWrittenTotal=0;
32
33 if(bytes<0) {
34 if(iPrevSize) CrossAPI_SetFilePointer(hFile,-iPrevSize,true);
35 tmp=iPrevSize;
36 iPrevSize=0;
37 return tmp;
38 }
39
40 if(iFileSize>=0) {
41 if(index+bytes>iFileSize) bytes=iFileSize-index;
42 }
43
44 while(iBytesWrittenTotal<bytes) {
45 if(!CrossAPI_WriteFile(hFile,&baseptr[index+iBytesWrittenTotal],bytes-iBytesWrittenTotal,&iBytesWritten)) {
46 return -1;
47 }
48 iBytesWrittenTotal+=iBytesWritten;
49 }
50
51 iPrevSize=bytes;
52
53 return bytes;
54 }
55