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From Lucho: fixes the CHKDSK I: "Invalid drive specification" bug

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git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@773 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Bart Oldeman 2004-02-06 20:55:55 +00:00
parent d3447eef6c
commit 4950f7483b
1 changed files with 11 additions and 2 deletions
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13
kernel/task.c
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@ -225,6 +225,15 @@ void new_psp(seg para, int psize)
p->ps_cmd.ctBuffer[0] = 0xd; /* command tail */ p->ps_cmd.ctBuffer[0] = 0xd; /* command tail */
} }
STATIC UBYTE chkdrv(unsigned drive) /* from FCB: 0 = default, 1 = A:, ... */
{
if (drive)
drive--; /* 0 = A:, 1 = B:, ... */
else
drive = default_drive;
return get_cds(drive) ? 0 : 0xff; /* return 0 if drive is valid, else 0xff */
}
STATIC UWORD patchPSP(UWORD pspseg, UWORD envseg, exec_blk FAR * exb, STATIC UWORD patchPSP(UWORD pspseg, UWORD envseg, exec_blk FAR * exb,
BYTE FAR * fnam) BYTE FAR * fnam)
{ {
@ -278,8 +287,8 @@ set_name:
pspmcb->m_name[i] = '\0'; pspmcb->m_name[i] = '\0';
/* return value: AX value to be passed based on FCB values */ /* return value: AX value to be passed based on FCB values */
return (get_cds(psp->ps_fcb1.fcb_drive) ? 0 : 0xff) | return chkdrv(psp->ps_fcb1.fcb_drive) |
(get_cds(psp->ps_fcb2.fcb_drive) ? 0 : 0xff00); (chkdrv(psp->ps_fcb2.fcb_drive) << 8);
} }
int load_transfer(UWORD ds, exec_blk *exp, UWORD fcbcode, COUNT mode) int load_transfer(UWORD ds, exec_blk *exp, UWORD fcbcode, COUNT mode)