INTHNDLR.C, 428
if (lr.AH != 0x59)
CritErrCode = SUCCESS;
}
/* Clear carry by default for these functions */
+ /* see PATCH TE 5 jul 04 explanation at end */
+ if (ErrorMode && lr.AH > 0x0c && lr.AH != 0x30 && lr.AH != 0x59)
+ {
+ ErrorMode = 0;
+ fnode[0].f_count = 0; /* don't panic - THEY ARE unused !! */
+ fnode[1].f_count = 0;
+ }
INTHNDLR.C:1514
real_exit:;
/* PATCH !! TE 5 JUL 04
what happened:
Application does FindFirst("I:\*.*");
this fails, and causes Int24
this sets ErrorMode, and calls Int24
Application decides NOT to return to DOS,
but instead pop the stack and return to itself
(this is legal; see RBIL/INT 24 description
a) now the alloc()'ed fnode[0] never gets free()'ed
b) errormode NEVER gets set back to 0 unyil exit()
I have NO idea how real DOS handles this;
the appended patch cures the worst symptoms
*/
if (fnode[0].f_count != 0 ||
fnode[1].f_count != 0 )
{
if (ErrorMode == 0)
put_string("near_fnodes not 0"); /* panic ?? */
fnode[0].f_count = 0; /* don't panic - THEY ARE unused !! */
fnode[1].f_count = 0;
}
/* PATCH !! END TE 5 JUL 04 */
tom
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