1 files changed, 95 insertions, 0 deletions
diff --git a/mDNSResponder/mDNSShared/mDNSDebug.c b/mDNSResponder/mDNSShared/mDNSDebug.c
new file mode 100644
index 00000000..cb4da6ec
--- /dev/null
+++ b/mDNSResponder/mDNSShared/mDNSDebug.c
@@ -0,0 +1,95 @@
+/* -*- Mode: C; tab-width: 4 -*-
+ *
+ * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+
+    File:		mDNSDebug.c
+
+    Contains:	Implementation of debugging utilities. Requires a POSIX environment.
+
+    Version:	1.0
+
+ */
+
+#include "mDNSDebug.h"
+
+#include <stdio.h>
+
+#if defined(WIN32) || defined(EFI32) || defined(EFI64) || defined(EFIX64)
+// Need to add Windows/EFI syslog support here
+#define LOG_PID 0x01
+#define LOG_CONS 0x02
+#define LOG_PERROR 0x20
+#else
+#include <syslog.h>
+#endif
+
+#include "mDNSEmbeddedAPI.h"
+
+mDNSexport int mDNS_LoggingEnabled       = 0;
+mDNSexport int mDNS_PacketLoggingEnabled = 0;
+mDNSexport int mDNS_McastLoggingEnabled  = 0;
+mDNSexport int mDNS_McastTracingEnabled  = 0; 
+
+#if MDNS_DEBUGMSGS
+mDNSexport int mDNS_DebugMode = mDNStrue;
+#else
+mDNSexport int mDNS_DebugMode = mDNSfalse;
+#endif
+
+// Note, this uses mDNS_vsnprintf instead of standard "vsnprintf", because mDNS_vsnprintf knows
+// how to print special data types like IP addresses and length-prefixed domain names
+#if MDNS_DEBUGMSGS > 1
+mDNSexport void verbosedebugf_(const char *format, ...)
+{
+    char buffer[512];
+    va_list ptr;
+    va_start(ptr,format);
+    buffer[mDNS_vsnprintf(buffer, sizeof(buffer), format, ptr)] = 0;
+    va_end(ptr);
+    mDNSPlatformWriteDebugMsg(buffer);
+}
+#endif
+
+// Log message with default "mDNSResponder" ident string at the start
+mDNSlocal void LogMsgWithLevelv(mDNSLogLevel_t logLevel, const char *format, va_list ptr)
+{
+    char buffer[512];
+    buffer[mDNS_vsnprintf((char *)buffer, sizeof(buffer), format, ptr)] = 0;
+    mDNSPlatformWriteLogMsg(ProgramName, buffer, logLevel);
+}
+
+#define LOG_HELPER_BODY(L) \
+    { \
+        va_list ptr; \
+        va_start(ptr,format); \
+        LogMsgWithLevelv(L, format, ptr); \
+        va_end(ptr); \
+    }
+
+// see mDNSDebug.h
+#if !MDNS_HAS_VA_ARG_MACROS
+void LogMsg_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_MSG)
+void LogOperation_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_OPERATION)
+void LogSPS_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_SPS)
+void LogInfo_(const char *format, ...)      LOG_HELPER_BODY(MDNS_LOG_INFO)
+#endif
+
+#if MDNS_DEBUGMSGS
+void debugf_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_DEBUG)
+#endif
+
+// Log message with default "mDNSResponder" ident string at the start
+mDNSexport void LogMsgWithLevel(mDNSLogLevel_t logLevel, const char *format, ...)
+LOG_HELPER_BODY(logLevel)