From: Emanuele Aliberti <ea@iol.it>
Date: Fri, 4 Aug 2000 21:49:31 +0000 (+0000)
Subject: Simple utility to list the so called "DOS Devices", that is
X-Git-Tag: backups/FreeLoader@12428~619
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=65ecb0b98b4422cd29ca44325521e37ad96f92c2;hp=66d2f292ef0c607e08bb9559b31cf13139adf8c1

Simple utility to list the so called "DOS Devices", that is
symbolic links in the \?? directory of the Ob name space.

svn path=/trunk/; revision=1285
---

diff --git a/rosapps/sysutils/ldd.c b/rosapps/sysutils/ldd.c
new file mode 100644
index 00000000000..bcfc44cc5e5
--- /dev/null
+++ b/rosapps/sysutils/ldd.c
@@ -0,0 +1,117 @@
+/* $Id: ldd.c,v 1.1 2000/08/04 21:49:31 ea Exp $
+ *
+ * FILE  : ldd.c
+ * AUTHOR: Emanuele ALIBERTI
+ * DATE  : 2000-08-04
+ * DESC  : List DOS devices, i.e. symbolic links created
+ *         in the \?? object manager's name space.
+ */
+#include <windows.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "win32err.h"
+
+#define LINKS_SIZE 32768
+#define DEVICE_SIZE 8192
+
+static char SymbolicLinks [LINKS_SIZE];
+static char DosDeviceName [DEVICE_SIZE];
+
+static char DeviceNames [DEVICE_SIZE];
+static char DeviceName [DEVICE_SIZE];
+
+
+BOOL
+STDCALL
+GetNextString (
+	char *	BufferIn,
+	char *	BufferOut,
+	char ** Next
+	)
+{
+	char * next = *Next;
+	char * w;
+
+	if ('\0' == *next) return FALSE;
+	for (	w = BufferOut;
+		('\0' != *next);
+		next ++
+		)
+	{
+		*(w ++) = *next;
+	}
+	*w = '\0';
+	*Next = ++ next;
+	return TRUE;
+}
+
+
+int
+main (int argc, char * argv [] )
+{
+	printf (
+		"ReactOS W32 - List DOS Devices\n"
+		"Written by E.Aliberti (%s)\n\n",
+		__DATE__
+		);
+
+	if (0 != QueryDosDevice (
+			NULL, /* dump full directory */
+			SymbolicLinks,
+			sizeof SymbolicLinks
+			)
+		)
+	{
+		char * NextDosDevice = SymbolicLinks;
+		char * NextDevice;
+		
+		while (TRUE == GetNextString (
+					SymbolicLinks,
+					DosDeviceName,
+					& NextDosDevice
+					)
+				)
+		{
+			printf ("%s\n", DosDeviceName);
+			if (0 != QueryDosDevice (
+					DosDeviceName,
+					DeviceNames,
+					sizeof DeviceNames
+					)
+				)
+			{
+				NextDevice = DeviceNames;
+				while (TRUE == GetNextString (
+							DeviceNames,
+							DeviceName,
+							& NextDevice
+						)
+					)
+				{
+					printf ("  %s\n", DeviceName);
+				}
+			}
+			else
+			{
+				PrintWin32Error (
+					L"ldd: ", 
+					GetLastError ()
+					);
+			}
+			printf ("\n");
+		}
+	}
+	else
+	{
+		PrintWin32Error (
+			L"ldd: ", 
+			GetLastError ()
+			);
+		return EXIT_FAILURE;
+	}
+	return EXIT_SUCCESS;
+}
+
+
+/* EOF */