Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Fix issues 3535 (dosbox-x hang on zip-mounted drives) and 3347 (minor bug fix and related) #3678

Merged
merged 2 commits into from
Aug 31, 2022
Merged

Fix issues 3535 (dosbox-x hang on zip-mounted drives) and 3347 (minor bug fix and related) #3678

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
96439da
fix and code cleanup for #3347 where a MEM_BlockRead is used instead …
Aug 14, 2022
a754da6
fix for issue #3535 where dosbox would hang when accessing files on a…
tbr Aug 14, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
38 changes: 15 additions & 23 deletions src/dos/dos.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1941,30 +1941,24 @@ static Bitu DOS_21Handler(void) {
}

dos.echo=true;

if(handle >= DOS_FILES) {
DOS_SetError(DOSERR_INVALID_HANDLE);
} else
if(!Files[handle] || !Files[handle]->IsOpen())
if(handle >= DOS_FILES || !Files[handle] || !Files[handle]->IsOpen()) {
DOS_SetError(DOSERR_INVALID_HANDLE);
else if(Files[handle]->GetInformation() & EXT_DEVICE_BIT)
{
}
else if(Files[handle]->GetInformation() & EXT_DEVICE_BIT) {
fRead = !(((DOS_ExtDevice*)Files[handle])->CallDeviceFunction(4, 26, SegValue(ds), reg_dx, toread) & 0x8000);
#if defined(USE_TTF)
if(fRead && ttf.inUse && reg_bx == WPvga512CHMhandle)
MEM_BlockRead(SegPhys(ds) + reg_dx, dos_copybuf, toread);
fRead &= ttf.inUse && reg_bx == WPvga512CHMhandle;
#endif
}
else
{
if((fRead = DOS_ReadFile(reg_bx, dos_copybuf, &toread)))
MEM_BlockWrite(SegPhys(ds) + reg_dx, dos_copybuf, toread);
else {
fRead = DOS_ReadFile(reg_bx, dos_copybuf, &toread);
}

if (fRead) {
MEM_BlockWrite(SegPhys(ds) + reg_dx, dos_copybuf, toread);
reg_ax=toread;
#if defined(USE_TTF)
if (ttf.inUse && reg_bx == WPvga512CHMhandle){
if (ttf.inUse && reg_bx == WPvga512CHMhandle) {
if (toread == 26 || toread == 2) {
if (toread == 2)
WP5chars = *(uint16_t*)dos_copybuf;
Expand Down Expand Up @@ -2033,17 +2027,15 @@ static Bitu DOS_21Handler(void) {
{
uint32_t handle = RealHandle(reg_bx);

if(handle >= DOS_FILES) {
if(handle >= DOS_FILES || !Files[handle] || !Files[handle]->IsOpen()) {
DOS_SetError(DOSERR_INVALID_HANDLE);
}
else
if(!Files[handle] || !Files[handle]->IsOpen())
DOS_SetError(DOSERR_INVALID_HANDLE);
else if(Files[handle]->GetInformation() & EXT_DEVICE_BIT)
{
fWritten = !(((DOS_ExtDevice*)Files[handle])->CallDeviceFunction(8, 26, SegValue(ds), reg_dx, towrite) & 0x8000);
}
else fWritten = DOS_WriteFile(reg_bx, dos_copybuf, &towrite);
else if(Files[handle]->GetInformation() & EXT_DEVICE_BIT) {
fWritten = !(((DOS_ExtDevice*)Files[handle])->CallDeviceFunction(8, 26, SegValue(ds), reg_dx, towrite) & 0x8000);
}
else {
fWritten = DOS_WriteFile(reg_bx, dos_copybuf, &towrite);
}
}
if (fWritten) {
reg_ax=towrite;
Expand Down
4 changes: 2 additions & 2 deletions src/dos/drive_physfs.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -407,7 +407,7 @@ bool physfsDrive::FileOpen(DOS_File * * file,const char * name,uint32_t flags) {
return false;
}

*file=new physfsFile(name,hand,0x202,newname,false);
*file=new physfsFile(name,hand,0x2,newname,false);
(*file)->flags=flags; //for the inheritance flag and maybe check for others.
return true;
}
Expand Down Expand Up @@ -447,7 +447,7 @@ bool physfsDrive::FileCreate(DOS_File * * file,const char * name,uint16_t attrib
}

/* Make the 16 bit device information */
*file=new physfsFile(name,hand,0x202,newname,true);
*file=new physfsFile(name,hand,0x2,newname,true);
(*file)->flags=OPEN_READWRITE;
if(!existing_file) {
strcpy(newname,basedir);
Expand Down