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FCB: Rename return value lost

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Two variables named 'result' were defined, at the outer level a
UBYTE to hold the function return value and the inner a COUNT to
hold returns from 'truename()'. The overall function return value
was always FCB_SUCCESS due to shadowing, however removing the
inner variable definition as a fix does not work due to sign
issues and intermixing of the variable uses, so rename the inner
variable.

Tested this patch using FDPP platform
1/ Simple rename of file with conditions for success (ok)
2/ Simple rename of file with conditions for failure - source missing (ok)
3/ Simple rename of file with conditions for failure - target exists (ok)

Fixes #16
This commit is contained in:
Andrew Bird 2018-10-18 09:37:17 +01:00 committed by Kenneth J Davis
parent e6d427834f
commit d5b5505013
1 changed files with 5 additions and 5 deletions
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10
kernel/fcbfns.c
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@ -526,7 +526,7 @@ UBYTE FcbRename(xfcb FAR * lpXfcb)
else
{
dmatch Dmatch;
COUNT result;
COUNT rc;
wAttr = (lpXfcb->xfcb_flag == 0xff ? lpXfcb->xfcb_attrib : D_ALL);
dta = &Dmatch;
@ -561,9 +561,9 @@ UBYTE FcbRename(xfcb FAR * lpXfcb)
SecPathName[0] = 'A' + FcbDrive - 1;
SecPathName[1] = ':';
strcpy(&SecPathName[2], Dmatch.dm_name);
result = truename(SecPathName, PriPathName, 0);
rc = truename(SecPathName, PriPathName, 0);
if (result < SUCCESS || (result & IS_DEVICE))
if (rc < SUCCESS || (rc & IS_DEVICE))
{
result = FCB_ERROR;
break;
@ -571,8 +571,8 @@ UBYTE FcbRename(xfcb FAR * lpXfcb)
/* now to build a dos name again */
LocalFcb.fcb_drive = FcbDrive;
FcbNameInit(&LocalFcb, loc_szBuffer, &FcbDrive);
result = truename(loc_szBuffer, SecPathName, 0);
if (result < SUCCESS || (result & (IS_NETWORK|IS_DEVICE)) == IS_DEVICE
rc = truename(loc_szBuffer, SecPathName, 0);
if (rc < SUCCESS || (rc & (IS_NETWORK|IS_DEVICE)) == IS_DEVICE
|| DosRenameTrue(PriPathName, SecPathName, wAttr) != SUCCESS)
{
result = FCB_ERROR;