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Return an error for generic block device request on unmounted floppy drives. Fixes bug #481.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4112
This commit is contained in:
ripsaw8080 2018-06-02 18:21:21 +00:00
parent 825999f3b8
commit cb8bf9f8f6
1 changed files with 4 additions and 0 deletions
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4
src/dos/dos_ioctl.cpp
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@ -152,6 +152,10 @@ bool DOS_IOCTL(void) {
return true;
case 0x0D: /* Generic block device request */
{
if (drive < 2 && !Drives[drive]) {
DOS_SetError(DOSERR_ACCESS_DENIED);
return false;
}
if (Drives[drive]->isRemovable()) {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;