Framework for glueing BIO layer and Win32 compiler run-time. Goal is to

make it possible to produce for a unified binary build, which can be
used with a variety of Win32 compilers.

1 files changed, 168 insertions, 0 deletions

diff --git a/ms/uplink.c b/ms/uplink.c
new file mode 100644
index 0000000000..c839f9b087
--- /dev/null
+++ b/ms/uplink.c
@@ -0,0 +1,168 @@
+#if defined(_WIN64) && !defined(UNICODE)
+#define UNICODE
+#endif
+#if defined(UNICODE) && !defined(_UNICODE)
+#define _UNICODE
+#endif
+#if defined(_UNICODE) && !defined(UNICODE)
+#define UNICODE
+#endif
+#if defined(_MSC_VER) && !defined(_WIN32_WINNT)
+#define _WIN32_WINNT 0x0333	/* 3.51 */
+#endif
+
+#include <windows.h>
+#include <tchar.h>
+#include <stdio.h>
+#include <malloc.h>
+#include "uplink.h"
+
+#ifdef _MSC_VER
+#pragma comment(lib,"delayimp")
+/*
+ * CL command line should also be complemented with following:
+ *
+ *	/link /delayload:advapi32.dll /delayload:user32.dll
+ *
+ * This is required if/as we want to support Win9x. With delayloaded
+ * DLLs in question all we have to do is to make sure NT-specific
+ * functions are not actually called under Win9x.
+ */
+#endif
+
+#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
+int IsService()
+{ HWINSTA h;
+  DWORD len;
+  WCHAR *name;
+
+    GetDesktopWindow(); /* return value is ignored */
+
+    h = GetProcessWindowStation();
+    if (h==NULL) return -1;
+
+    if (GetUserObjectInformationW (h,UOI_NAME,NULL,0,&len) ||
+	GetLastError() != ERROR_INSUFFICIENT_BUFFER)
+	return -1;
+
+    if (len>512) return -1;		/* paranoia */
+    len++,len&=~1;			/* paranoia */
+#ifdef _MSC_VER
+    name=(WCHAR *)_alloca(len+sizeof(WCHAR));
+#else
+    name=(WCHAR *)alloca(len+sizeof(WCHAR));
+#endif
+    if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len))
+	return -1;
+
+    len++,len&=~1;			/* paranoia */
+    name[len/sizeof(WCHAR)]=L'\0';	/* paranoia */
+#if 1
+    /* This doesn't cover "interactive" services [working with real
+     * WinSta0's] nor programs started non-interactively by Task
+     * Scheduler [those are working with SAWinSta]. */
+    if (wcsstr(name,L"Service-0x"))	return 1;
+#else
+    /* This covers all non-interactive programs such as services. */
+    if (!wcsstr(name,L"WinSta0"))	return 1;
+#endif
+    else				return 0;
+}
+#endif
+
+static TCHAR msg[128];
+
+static void unimplemented ()
+{
+#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
+    /* this -------------v--- guards NT-specific calls */
+    if (GetVersion() < 0x80000000 && IsService())
+    {	HANDLE h = RegisterEventSource(0,_T("OPENSSL"));
+	TCHAR *pmsg=msg;
+	ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0);
+	DeregisterEventSource(h);
+    }
+    else
+#endif
+    {	MSGBOXPARAMS         m;
+
+	m.cbSize             = sizeof(m);
+	m.hwndOwner          = NULL;
+	m.lpszCaption        = _T("OpenSSL: FATAL");
+	m.dwStyle            = MB_OK;
+	m.hInstance          = NULL;
+	m.lpszIcon           = IDI_ERROR;
+	m.dwContextHelpId    = 0;
+	m.lpfnMsgBoxCallback = NULL;
+	m.dwLanguageId       = MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US);
+	m.lpszText           = msg;
+
+	MessageBoxIndirect (&m);
+    }
+    ExitProcess (1);
+}
+
+void OPENSSL_Uplink (void **table, int index)
+{ static HMODULE app=NULL;
+  static void **applinktable=NULL;
+  int len;
+
+    len = _stprintf (msg,_T("OPENSSL_Uplink(%p,%02X): "),table,index);
+    _tcscpy (msg+len,_T("unimplemented function"));
+    table [index] = unimplemented;
+
+    if (app==NULL && (app=GetModuleHandle(NULL))==NULL)
+    {	app=(HMODULE)-1; _tcscpy (msg+len,_T("no host application"));
+	return;
+    }
+    else if (app==(HMODULE)-1)	{ return; }
+
+    if (applinktable==NULL)
+    { void**(*applink)();
+
+	applink=(void**(*)())GetProcAddress(app,"OPENSSL_Applink");
+	if (applink==NULL)
+	{   app=(HMODULE)-1; _tcscpy (msg+len,_T("no OPENSSL_Applink"));
+	    return;
+	}
+	applinktable = (*applink)();
+	if (applinktable==NULL)
+	{   app=(HMODULE)-1; _tcscpy (msg+len,_T("no ApplinkTable"));
+	    return;
+	}
+    }
+
+    if (index > (int)applinktable[0])	{ return; }
+
+    if (applinktable[index]) table[index] = applinktable[index];
+}    
+
+#if defined(_MSC_VER) && defined(_M_IX86)
+#define LAZY(i)		\
+__declspec(naked) static void lazy##i () { 	\
+	_asm	push i				\
+	_asm	push OFFSET OPENSSL_UplinkTable	\
+	_asm	call OPENSSL_Uplink		\
+	_asm	add  esp,8			\
+	_asm	jmp  OPENSSL_UplinkTable+4*i	}
+
+#if APPLINK_MAX>20
+#error "Add more stubs..."
+#endif
+/* make some in advance... */
+LAZY(1)  LAZY(2)  LAZY(3)  LAZY(4)  LAZY(5)
+LAZY(6)  LAZY(7)  LAZY(8)  LAZY(9)  LAZY(10)
+LAZY(11) LAZY(12) LAZY(13) LAZY(14) LAZY(15)
+LAZY(16) LAZY(17) LAZY(18) LAZY(19) LAZY(20)
+void *OPENSSL_UplinkTable[] = {
+	(void *)APPLINK_MAX,
+	lazy1, lazy2, lazy3, lazy4, lazy5,
+	lazy6, lazy7, lazy8, lazy9, lazy10,
+	lazy11,lazy12,lazy13,lazy14,lazy15,
+	lazy16,lazy17,lazy18,lazy19,lazy20,
+};
+#endif
+
+#ifdef SELFTEST
+main() {  UP_fprintf(UP_stdout,"hello, world!\n"); }
+#endif