hooklib/dns.c

@@ -175,20 +175,24 @@ static void dns_hook_init(void)
     dns_hook_initted = true;
     InitializeCriticalSection(&dns_hook_lock);
 
+    dns_hook_apply_hooks(NULL);
+}
+
+void dns_hook_apply_hooks(HMODULE mod){
     hook_table_apply(
-            NULL,
+            mod,
             "dnsapi.dll",
             dns_hook_syms_dnsapi,
             _countof(dns_hook_syms_dnsapi));
 
     hook_table_apply(
-            NULL,
+            mod,
             "ws2_32.dll",
             dns_hook_syms_ws2,
             _countof(dns_hook_syms_ws2));
-    
+
     hook_table_apply(
-            NULL,
+            mod,
             "winhttp.dll",
             dns_hook_syms_winhttp,
             _countof(dns_hook_syms_winhttp));
@@ -488,6 +492,8 @@ static int WSAAPI hook_getaddrinfo(
         goto end;
     }
 
+    dprintf("getaddrinfo: %s, %s\n", pNodeName, pServiceName);
+
     mbstowcs_s(&wstr_c, NULL, 0, pNodeName, 0);
     wstr = malloc(wstr_c * sizeof(wchar_t));
 

hooklib/dns.h

@@ -7,3 +7,4 @@
 // if to_src is NULL, all lookups for from_src will fail
 HRESULT dns_hook_push(const wchar_t *from_src, const wchar_t *to_src);
 
+void dns_hook_apply_hooks(HMODULE mod);

platform/epay.c

@@ -7,6 +7,7 @@
 
 #include "hook/table.h"
 
+#include "hooklib/dns.h"
 #include "hooklib/reg.h"
 
 #include "platform/epay.h"
@@ -172,6 +173,15 @@ HRESULT epay_hook_init(const struct epay_config *cfg) {
         return hr;
     }
 
+    dprintf("EPay: Registry initialized\n");
+
+    // HACK:(?) thincahttpclient.dll is loaded dynamically so we just preload it and apply DNS hooks to it
+    HMODULE thincahttpclient = LoadLibraryA("thincahttpclient.dll");
+    if (thincahttpclient != NULL){
+        dns_hook_apply_hooks(thincahttpclient);
+        dprintf("EPay: DNS hooked\n");
+    }
+
     if (cfg->hook) {
         hook_table_apply(
                 NULL,
@@ -199,7 +209,7 @@ HRESULT epay_hook_init(const struct epay_config *cfg) {
         thinca_stub->impl1->unk220 = thinca_unk;
         thinca_stub->impl1->unk228 = thinca_unk;
 
-        dprintf("Epay: Init\n");
+        dprintf("Epay: Hooks initialized\n");
     }
 
     return hr;