From e01f5ac2de18b2e2c0fcc48c0c5a711cde7a7b6e Mon Sep 17 00:00:00 2001
From: HaRoLd <303926+HarryR@users.noreply.github.com>
Date: Thu, 16 Apr 2026 15:31:34 +0530
Subject: [PATCH] Fix import table handling for older PE formats

Handle older PE formats by using import address table if import lookup table is missing.

Fixes https://github.com/decompals/wibo/issues/116
---
 src/loader.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/loader.cpp b/src/loader.cpp
index ea6e69c..f5509b7 100644
--- a/src/loader.cpp
+++ b/src/loader.cpp
@@ -678,7 +678,11 @@ bool wibo::Executable::resolveImports() {
 	while (dir->name) {
 		char *dllName = fromRVA<char>(dir->name);
 		DEBUG_LOG("DLL Name: %s\n", dllName);
-		uint32_t *lookupTable = fromRVA<uint32_t>(dir->importLookupTable);
+
+		// Older PEs (NT 3.5-era) omit the ILT and only ship the IAT, which
+		// on disk holds the hint/name RVAs that later get overwritten.
+		uint32_t iltRVA = dir->importLookupTable ? dir->importLookupTable : dir->importAddressTable;
+		uint32_t *lookupTable = fromRVA<uint32_t>(iltRVA);
 		uint32_t *addressTable = fromRVA<uint32_t>(dir->importAddressTable);
 
 		ModuleInfo *module = loadModule(dllName);