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Casting bug

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1965
This commit is contained in:
Peter Veenstra 2004-09-10 18:57:53 +00:00
parent c002268376
commit fefa216210
1 changed files with 23 additions and 14 deletions
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37
src/dos/dos_programs.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dos_programs.cpp,v 1.27 2004-09-05 14:23:04 qbix79 Exp $ */
/* $Id: dos_programs.cpp,v 1.28 2004-09-10 18:57:53 qbix79 Exp $ */
#include <stdlib.h>
#include <string.h>
@ -221,23 +221,32 @@ private:
localDrive* ldp=0;
if (!DOS_MakeName((char *)filename,fullname,&drive)) return NULL;
ldp=(localDrive*)Drives[drive];
tmpfile = ldp->GetSystemFilePtr(fullname, "r");
if(tmpfile == NULL) {
WriteOut(MSG_Get("PROGRAM_BOOT_NOT_EXIST"));
return NULL;
try {
ldp=dynamic_cast<localDrive*>(Drives[drive]);
if(!ldp) return NULL;
tmpfile = ldp->GetSystemFilePtr(fullname, "r");
if(tmpfile == NULL) {
WriteOut(MSG_Get("PROGRAM_BOOT_NOT_EXIST"));
return NULL;
}
fclose(tmpfile);
tmpfile = ldp->GetSystemFilePtr(fullname, "rb+");
if(tmpfile == NULL) {
WriteOut(MSG_Get("PROGRAM_BOOT_NOT_OPEN"));
return NULL;
}
fseek(tmpfile,0L, SEEK_END);
*ksize = (ftell(tmpfile) / 1024);
*bsize = ftell(tmpfile);
return tmpfile;
}
fclose(tmpfile);
tmpfile = ldp->GetSystemFilePtr(fullname, "rb+");
if(tmpfile == NULL) {
WriteOut(MSG_Get("PROGRAM_BOOT_NOT_OPEN"));
catch(...) {
return NULL;
}
fseek(tmpfile,0L, SEEK_END);
*ksize = (ftell(tmpfile) / 1024);
*bsize = ftell(tmpfile);
return tmpfile;
}
void printError(void) {