Fix for bug #8690 : On Windows 7 isql exits silently right after the start.

builds/win32/defs/compatibility.manifest

@@ -0,0 +1,19 @@
+<!-- compatibility.manifest -->
+<!-- see https://learn.microsoft.com/en-us/windows/win32/sysinfo/targeting-your-application-at-windows-8-1 -->
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+    <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+        <application>
+            <!-- Windows 10 and Windows 11 -->
+            <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+            <!-- Windows 8.1 -->
+            <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+            <!-- Windows 8 -->
+            <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+            <!-- Windows 7 -->
+            <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+            <!-- Windows Vista -->
+            <!-- supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/ --> 
+        </application>
+    </compatibility>
+</assembly>

builds/win32/msvc15/FirebirdCommon.props

@@ -43,5 +43,8 @@
     <ResourceCompile>
       <PreprocessorDefinitions>RC_ARH_$(Platform);RC_TARGET_$(TargetName);RC_TARGET_NAME=$(TargetName);RC_TARGET_FILENAME=$(TargetFileName);%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ResourceCompile>
+    <Manifest>
+      <AdditionalManifestFiles>..\defs\compatibility.manifest %(AdditionalManifestFiles)</AdditionalManifestFiles>
+    </Manifest>
   </ItemDefinitionGroup>
 </Project>

src/isql/isql.epp

@@ -99,6 +99,7 @@ enum literal_string_type
 
 #if defined(WIN_NT)
 #include <windows.h>
+#include <VersionHelpers.h>
 #endif
 #include "ibase.h"
 #include "../isql/isql.h"
@@ -349,14 +350,21 @@ static int win32ReadConsole(FILE* file, CharBuffer& mbBuffer)
 			SetConsoleMode(handle, oldMode);
 	});
 
-	const size_t MAX_LINE_LENGTH = MAX_USHORT;
-	WCHAR* wideBuf = wideBuffer->getBuffer(MAX_LINE_LENGTH, false);
+	// Before Windows 10, ReadConsole() can't work with relatively large input
+	// buffers and set ERROR_NOT_ENOUGH_MEMORY error. Thus, use initial buffer size
+	// twice less than for Windows 10 and handle error by reducing the buffer size.
+
+	static size_t maxLineLength = IsWindows10OrGreater() ? MAX_USHORT : MAX_SSHORT;
+	WCHAR* wideBuf = wideBuffer->getBuffer(maxLineLength, false);
 
 	DWORD charsRead;
-	if (!ReadConsoleW(handle, wideBuf, MAX_LINE_LENGTH, &charsRead, NULL))
+	while (!ReadConsoleW(handle, wideBuf, maxLineLength, &charsRead, NULL))
 	{
-		fb_assert(false);
-		return -1;
+		const DWORD error = GetLastError();
+		if (error == ERROR_NOT_ENOUGH_MEMORY && maxLineLength > 256)
+			maxLineLength -= 256;
+		else
+			Firebird::system_error::raise("ReadConsoleW", error);
 	}
 
 	if (!charsRead)
@@ -764,20 +772,17 @@ static void atexit_fb_shutdown()
 
 int CLIB_ROUTINE main(int argc, char* argv[])
 {
-/**************************************
- *
- *	m a i n
- *
- **************************************
- *
- * Functional description
- *	This calls ISQL_main, and exists to
- *	isolate main which does not exist under
- *	MS Windows.
- *
- **************************************/
-
-	return ISQL_main(argc, argv);
+	try
+	{
+		return ISQL_main(argc, argv);
+	}
+	catch (const Firebird::Exception& ex)
+	{
+		Firebird::StaticStatusVector st;
+		ex.stuffException(st);
+		isc_print_status(st.begin());
+	}
+	return 1;
 }