[PATCH] msi: Fix crash when calling MsiGetActiveDatabase with invalid remote handle.
Octavian Voicu
octavian.voicu at gmail.com
Mon Apr 19 04:49:40 CDT 2010
---
dlls/msi/package.c | 16 +++++++++++++---
1 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/dlls/msi/package.c b/dlls/msi/package.c
index b1741ae..71346f4 100644
--- a/dlls/msi/package.c
+++ b/dlls/msi/package.c
@@ -1357,6 +1357,7 @@ MSIHANDLE WINAPI MsiGetActiveDatabase(MSIHANDLE hInstall)
{
MSIPACKAGE *package;
MSIHANDLE handle = 0;
+ IUnknown *remote_unk;
IWineMsiRemotePackage *remote_package;
TRACE("(%d)\n",hInstall);
@@ -1367,10 +1368,19 @@ MSIHANDLE WINAPI MsiGetActiveDatabase(MSIHANDLE hInstall)
handle = alloc_msihandle( &package->db->hdr );
msiobj_release( &package->hdr );
}
- else if ((remote_package = (IWineMsiRemotePackage *)msi_get_remote( hInstall )))
+ else if ((remote_unk = msi_get_remote(hInstall)))
{
- IWineMsiRemotePackage_GetActiveDatabase(remote_package, &handle);
- IWineMsiRemotePackage_Release(remote_package);
+ if (IUnknown_QueryInterface(remote_unk, &IID_IWineMsiRemotePackage,
+ (LPVOID *)&remote_package) == S_OK)
+ {
+ IWineMsiRemotePackage_GetActiveDatabase(remote_package, &handle);
+ IWineMsiRemotePackage_Release(remote_package);
+ }
+ else
+ {
+ WARN("remote handle %d is not a package\n", hInstall);
+ }
+ IUnknown_Release(remote_unk);
}
return handle;
--
1.6.3.3
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