krnl386.exe16: Fail int 21, 4e if the volume label is an empty string.

Signed-off-by: Zebediah Figura <z.figura12@gmail.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

krnl386.exe16: Fail int 21, 4e if the volume label is an empty string.
6de3c8f1 · Zebediah Figura · Alexandre Julliard · b06dd7d8 · 6de3c8f1
Commit 6de3c8f1 authored Jul 20, 2017 by Zebediah Figura Committed by Alexandre Julliard Jul 21, 2017
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int21.c dlls/krnl386.exe16/int21.c +1 -0

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--- a/dlls/krnl386.exe16/int21.c
+++ b/dlls/krnl386.exe16/int21.c
@@ -3876,6 +3876,7 @@ static unsigned INT21_FindHelper(LPCWSTR fullPath, unsigned drive, unsigned coun
        if (count) return 0;
        path[0] = drive + 'A';
        if (!GetVolumeInformationW(path, entry->cAlternateFileName, 13, NULL, NULL, NULL, NULL, 0)) return 0;
+        if (!entry->cAlternateFileName[0]) return 0;
        RtlSecondsSince1970ToTime( 0, (LARGE_INTEGER *)&entry->ftCreationTime );
        RtlSecondsSince1970ToTime( 0, (LARGE_INTEGER *)&entry->ftLastAccessTime );
        RtlSecondsSince1970ToTime( 0, (LARGE_INTEGER *)&entry->ftLastWriteTime );