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8292866: Java_sun_awt_shell_Win32ShellFolder2_getLinkLocation check MultiByteToWideChar return value for failures

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Reviewed-by: mdoerr, stuefe
This commit is contained in:
Matthias Baesken 2022-09-12 06:41:48 +00:00
parent 68da02c7b5
commit 699c42962e
1 changed files with 10 additions and 3 deletions
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13
src/java.desktop/windows/native/libawt/windows/ShellFolder2.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2003, 2021, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2003, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -700,6 +700,7 @@ JNIEXPORT jlong JNICALL Java_sun_awt_shell_Win32ShellFolder2_getLinkLocation
STRRET strret;
OLECHAR olePath[MAX_PATH]; // wide-char version of path name
LPWSTR wstr;
int ret;
IShellFolder* pParent = (IShellFolder*)parentIShellFolder;
if (pParent == NULL) {
@ -719,12 +720,18 @@ JNIEXPORT jlong JNICALL Java_sun_awt_shell_Win32ShellFolder2_getLinkLocation
switch (strret.uType) {
case STRRET_CSTR :
// IShellFolder::ParseDisplayName requires the path name in Unicode.
MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, strret.cStr, -1, olePath, MAX_PATH);
ret = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, strret.cStr, -1, olePath, MAX_PATH);
if (ret == 0) {
return NULL;
}
wstr = olePath;
break;
case STRRET_OFFSET :
MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, (CHAR *)pidl + strret.uOffset, -1, olePath, MAX_PATH);
ret = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, (CHAR *)pidl + strret.uOffset, -1, olePath, MAX_PATH);
if (ret == 0) {
return NULL;
}
wstr = olePath;
break;