From 50e18fe02468daf94a6d5f851f60543dbf015737 Mon Sep 17 00:00:00 2001
From: Jeffrey Altman <jaltman@mit.edu>
Date: Wed, 23 Jun 2004 09:12:07 +0000
Subject: [PATCH] wix-msi-loopback-20040622

convert wix installer to use msi interface to loopback dll instead
of instloop.exe
---
 src/WINNT/install/loopback/NTMakefile        |  3 +-
 src/WINNT/install/loopback/loopbackutils.cpp | 33 ++++++++++++++++++++
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/src/WINNT/install/loopback/NTMakefile b/src/WINNT/install/loopback/NTMakefile
index 587052144..2747726e2 100644
--- a/src/WINNT/install/loopback/NTMakefile
+++ b/src/WINNT/install/loopback/NTMakefile
@@ -16,7 +16,8 @@ DLLEXPORTS=\
 	-EXPORT:InstallLoopBack \
 	-EXPORT:doLoopBackEntryW \
 	-EXPORT:uninstallLoopBackEntryW \
-	-EXPORT:installLoopbackMSI
+	-EXPORT:installLoopbackMSI \
+	-EXPORT:uninstallLoopbackMSI
 
 DLLLIBFILES=\
 	setupapi.lib msi.lib uuid.lib Shell32.lib ole32.lib advapi32.lib wbemuuid.lib
diff --git a/src/WINNT/install/loopback/loopbackutils.cpp b/src/WINNT/install/loopback/loopbackutils.cpp
index e460af3a0..d6eeafd7e 100644
--- a/src/WINNT/install/loopback/loopbackutils.cpp
+++ b/src/WINNT/install/loopback/loopbackutils.cpp
@@ -627,3 +627,36 @@ UINT __stdcall installLoopbackMSI (MSIHANDLE hInstall)
 	return ERROR_SUCCESS;
 }
 
+UINT __stdcall uninstallLoopbackMSI (MSIHANDLE hInstall)
+{
+	LPWSTR szValueBuf;
+	DWORD cbValueBuf = 256;
+	Args args;
+	UINT rc;
+
+	szValueBuf = (LPWSTR) malloc (cbValueBuf * sizeof (WCHAR));
+	while (rc = MsiGetPropertyW(hInstall, L"CustomActionData", szValueBuf, &cbValueBuf)) {
+		free (szValueBuf);
+		if (rc == ERROR_MORE_DATA) {
+			cbValueBuf++;
+			szValueBuf = (LPWSTR) malloc (cbValueBuf * sizeof (WCHAR));
+		} 
+        else 
+            return ERROR_INSTALL_FAILURE;
+	}
+
+	if (!process_args(szValueBuf, args)) 
+        return ERROR_INSTALL_FAILURE;
+		
+	rc = UnInstallLoopBack ();
+
+	if (rc == 1) 
+        return ERROR_INSTALL_FAILURE;
+
+	if (rc == 2) {
+		MsiDoActionW (hInstall, L"ScheduleReboot");
+	}
+
+	return ERROR_SUCCESS;
+}
+
-- 
2.39.5