Zebediah Figura : msi: Return an error if trying to run a 64-bit custom action in a 32-bit prefix.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 408662379281aa24f41b680f1aba9abf2b40c603
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=408662379281aa24f41b680f1...

Author: Zebediah Figura <z.figura12(a)gmail.com>
Date:   Sat Jan 23 17:42:42 2021 -0600

msi: Return an error if trying to run a 64-bit custom action in a 32-bit prefix.

This matches native behaviour (manually tested).

This allows the Research in Motion (Blackberry) USB and Modem driver to fail
cleanly instead of hanging, if run in a 32-bit prefix.

Signed-off-by: Zebediah Figura <z.figura12(a)gmail.com>
Signed-off-by: Hans Leidekker <hans(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/msi/custom.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/dlls/msi/custom.c b/dlls/msi/custom.c
index 7ae7e45af29..fb03958eb11 100644
--- a/dlls/msi/custom.c
+++ b/dlls/msi/custom.c
@@ -748,6 +748,13 @@ static msi_custom_action_info *do_msidbCustomActionTypeDll(
     if (!ret)
         info->arch = (sizeof(void *) == 8 ? SCS_64BIT_BINARY : SCS_32BIT_BINARY);
 
+    if (info->arch == SCS_64BIT_BINARY && sizeof(void *) == 4 && !is_wow64)
+    {
+        ERR("Attempt to run a 64-bit custom action inside a 32-bit WINEPREFIX.\n");
+        free_custom_action_data( info );
+        return NULL;
+    }
+
     custom_start_server(package, info->arch);
 
     info->handle = CreateThread(NULL, 0, custom_client_thread, info, 0, NULL);