X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/72a12576750f52947eb043106ba5c12c0d07decf..b1ab9ed8d0e0f1c3b66d7daa8fd5564444c56195:/libsecurity_keychain/lib/debuggingP.c

diff --git a/libsecurity_keychain/lib/debuggingP.c b/libsecurity_keychain/lib/debuggingP.c
new file mode 100644
index 00000000..34ca70dd
--- /dev/null
+++ b/libsecurity_keychain/lib/debuggingP.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2006-2010 Apple Inc. All Rights Reserved.
+ * 
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+
+/* 
+ * debugging.c - non-trivial debug support
+ */
+#include <security_utilities/debugging.h>
+#include <CoreFoundation/CFSet.h>
+#include <CoreFoundation/CFString.h>
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <pthread.h>
+#include <asl.h>
+
+#if !defined(NDEBUG)
+#define MAX_SCOPE_LENGTH  12
+
+static CFStringRef copyScopeName(const char *scope, CFIndex scopeLen) {
+	if (scopeLen > MAX_SCOPE_LENGTH)
+		scopeLen = MAX_SCOPE_LENGTH - 1;
+	return CFStringCreateWithBytes(kCFAllocatorDefault, (const UInt8 *)scope,
+		scopeLen, kCFStringEncodingUTF8, false);
+}
+
+pthread_once_t __security_debug_once = PTHREAD_ONCE_INIT;
+static const char *gDebugScope;
+static CFMutableSetRef scopeSet;
+static bool negate = false;
+
+static void __security_debug_init(void) {
+	const char *cur_scope = gDebugScope = getenv("DEBUGSCOPE");
+	if (cur_scope) {
+		if (!strcmp(cur_scope, "all")) {
+			scopeSet = NULL;
+			negate = true;
+		} else if (!strcmp(cur_scope, "none")) {
+			scopeSet = NULL;
+			negate = false;
+		} else {
+			scopeSet = CFSetCreateMutable(kCFAllocatorDefault, 0,
+				&kCFTypeSetCallBacks);
+			if (cur_scope[0] == '-') {
+				negate = true;
+				cur_scope++;
+			} else {
+				negate = false;
+			}
+
+			const char *sep;
+			while ((sep = strchr(cur_scope, ','))) {
+				CFStringRef scopeName = copyScopeName(cur_scope,
+					sep - cur_scope);
+				CFSetAddValue(scopeSet, scopeName);
+				CFRelease(scopeName);
+				cur_scope = sep + 1;
+			}
+
+			CFStringRef scopeName = copyScopeName(cur_scope,
+				strlen(cur_scope));
+			CFSetAddValue(scopeSet, scopeName);
+			CFRelease(scopeName);
+		}
+	} else {
+		scopeSet = NULL;
+		negate = false;
+	}
+}
+
+#endif
+
+void __security_debug(const char *scope, const char *function,
+    const char *file, int line, const char *format, ...)
+{
+#if !defined(NDEBUG)
+	pthread_once(&__security_debug_once, __security_debug_init);
+
+	CFStringRef scopeName = NULL;
+	/* Scope NULL is always enabled. */
+	if (scope) {
+		/* Check if the scope is enabled. */
+		if (scopeSet) {
+			scopeName = copyScopeName(scope, strlen(scope));
+			if (negate == CFSetContainsValue(scopeSet, scopeName)) {
+				CFRelease(scopeName);
+				return;
+			}
+		} else if (!negate) {
+			return;
+		}
+	}
+
+	CFStringRef formatStr = CFStringCreateWithCString(kCFAllocatorDefault,
+		format, kCFStringEncodingUTF8);
+	va_list args;
+	va_start(args, format);
+	CFStringRef message = CFStringCreateWithFormatAndArguments(
+		kCFAllocatorDefault, NULL, formatStr, args);
+	va_end(args);
+	time_t now = time(NULL);
+	char *date = ctime(&now);
+	date[19] = '\0';
+	CFStringRef logStr = CFStringCreateWithFormat(kCFAllocatorDefault, NULL,
+		CFSTR("%s %-*s %s %@\n"), date + 4, MAX_SCOPE_LENGTH - 1,
+        scope ? scope : "", function, message);
+	CFShow(logStr);
+    char logMsg[4096];
+    if (CFStringGetCString(logStr, logMsg, sizeof(logMsg), kCFStringEncodingUTF8)) {
+#if 0
+        asl_log(NULL, NULL, ASL_LEVEL_INFO, logMsg);
+#else
+        aslmsg msg = asl_new(ASL_TYPE_MSG);
+        if (scope) {
+            asl_set(msg, ASL_KEY_FACILITY, scope);
+        }
+        asl_set(msg, ASL_KEY_LEVEL, ASL_STRING_INFO);
+        asl_set(msg, ASL_KEY_MSG, logMsg);
+        asl_send(NULL, msg);
+        asl_free(msg);
+#endif
+    }
+	CFRelease(logStr);
+	CFRelease(message);
+	CFRelease(formatStr);
+	if (scopeName)
+		CFRelease(scopeName);
+#endif
+}