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diff --git a/geekos/src/lwip/netif/ppp/pppdebug.h b/geekos/src/lwip/netif/ppp/pppdebug.h
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+/*****************************************************************************
+* pppdebug.h - System debugging utilities.
+*
+* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
+* portions Copyright (c) 1998 Global Election Systems Inc.
+* portions Copyright (c) 2001 by Cognizant Pty Ltd.
+*
+* The authors hereby grant permission to use, copy, modify, distribute,
+* and license this software and its documentation for any purpose, provided
+* that existing copyright notices are retained in all copies and that this
+* notice and the following disclaimer are included verbatim in any 
+* distributions. No written agreement, license, or royalty fee is required
+* for any of the authorized uses.
+*
+* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
+* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
+* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+******************************************************************************
+* REVISION HISTORY (please don't use tabs!)
+*
+* 03-01-01 Marc Boucher <marc@mbsi.ca>
+*   Ported to lwIP.
+* 98-07-29 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
+*   Original.
+*
+*****************************************************************************
+*/
+#ifndef PPPDEBUG_H
+#define PPPDEBUG_H
+
+/************************
+*** PUBLIC DATA TYPES ***
+************************/
+/* Trace levels. */
+typedef enum {
+LOG_CRITICAL = 0,
+LOG_ERR      = 1,
+LOG_NOTICE   = 2,
+LOG_WARNING  = 3,
+LOG_INFO     = 5,
+LOG_DETAIL   = 6,
+LOG_DEBUG    = 7
+} LogCodes;
+
+
+/***********************
+*** PUBLIC FUNCTIONS ***
+***********************/
+/*
+ * ppp_trace - a form of printf to send tracing information to stderr
+ */
+void ppp_trace(int level, const char *format,...);
+
+#define TRACELCP PPP_DEBUG
+
+#if PPP_DEBUG
+
+#define AUTHDEBUG(a) ppp_trace a
+#define IPCPDEBUG(a) ppp_trace a
+#define UPAPDEBUG(a) ppp_trace a
+#define LCPDEBUG(a)  ppp_trace a
+#define FSMDEBUG(a)  ppp_trace a
+#define CHAPDEBUG(a) ppp_trace a
+#define PPPDEBUG(a)  ppp_trace a
+
+#else /* PPP_DEBUG */
+
+#define AUTHDEBUG(a)
+#define IPCPDEBUG(a)
+#define UPAPDEBUG(a)
+#define LCPDEBUG(a)
+#define FSMDEBUG(a)
+#define CHAPDEBUG(a)
+#define PPPDEBUG(a)
+
+#endif /* PPP_DEBUG */
+
+#endif /* PPPDEBUG_H */