OSX/libsecurity_utilities/lib/debugging_internal.cpp

   1 /*
   2  * Copyright (c) 2000-2012,2014 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24
  25 #include "debugging_internal.h"
  26 #include <stdarg.h>
  27 #include <CoreFoundation/CoreFoundation.h>
  28
  29 void secdebug_internal(const char* scope, const char* format, ...)
  30 {
  31     if (__builtin_expect(SECURITY_DEBUG_LOG_ENABLED(), 0))
  32     {
  33         va_list list;
  34         va_start(list, format);
  35
  36         CFStringRef formatString = CFStringCreateWithCString(NULL, format, kCFStringEncodingUTF8);
  37         CFStringRef message = CFStringCreateWithFormatAndArguments(kCFAllocatorDefault, NULL, formatString, list);
  38         CFRelease(formatString);
  39         CFIndex maxLength = CFStringGetMaximumSizeForEncoding(CFStringGetLength(message), kCFStringEncodingUTF8) + 1;
  40         char buffer[maxLength];
  41         CFStringGetCString(message, buffer, sizeof(buffer), kCFStringEncodingUTF8);
  42         CFRelease(message);
  43         SECURITY_DEBUG_LOG((char *)(scope), (buffer));
  44
  45         va_end(list);
  46     }
  47 }