Security-54.1.7.tar.gz

[apple/security.git] / cdsa / cdsa_utilities / debugging.cpp

diff --git a/cdsa/cdsa_utilities/debugging.cpp b/cdsa/cdsa_utilities/debugging.cpp
index a1941e3ebde5956de3b8890dfab481d031a2893b..40085f6afa993f67eac9d2307fa01fe0195303e1 100644 (file)
--- a/cdsa/cdsa_utilities/debugging.cpp
+++ b/cdsa/cdsa_utilities/debugging.cpp
@@ -22,16 +22,29 @@
 #include <Security/debugsupport.h>
 #include <Security/globalizer.h>
 #include <cstdarg>
+#include <ctype.h>
 
 #define SYSLOG_NAMES   // compile syslog name tables
 #include <syslog.h>
 
+#if !defined(USE_CXXABI)
+#define USE_CXXABI 0   // only available in gcc3 >v1100
+#endif
+
+#if USE_CXXABI
+# include <cxxabi.h>   // for name demangling
+#endif //USE_CXXABI
+
+
 namespace Security {
 namespace Debug {
 
 
-#if !defined(NDEBUG)
+#if defined(NDEBUG)
+
+void Scope::operator () (const char *, ...)    { }
 
+#else // NDEBUG
 
 //
 // Main debug functions (global and in-scope)
@@ -112,7 +125,7 @@ void dumpData(const void *ptr, size_t size)
        } else {
                dump("0x");
                for (const char *p = addr; p < end; p++)
-                       dump("%2.2x", *p);
+                       dump("%2.2x", static_cast<unsigned char>(*p));
        }
 #endif //NDEBUG_STUBS
 }
@@ -127,16 +140,40 @@ void dumpData(const char *title, const void *ptr, size_t size)
 }
 
 
+//
+// Turn a C++ typeid into a nice type name.
+// This uses the C++ ABI where available.
+//
+string makeTypeName(const type_info &type)
+{
+#if USE_CXXABI
+       int status;
+       char *cname = abi::__cxa_demangle(type.name(), NULL, NULL, &status);
+       string name = cname; // save the value
+       ::free(cname);  // yes, really (ABI rule)
+       return name;
+#else
+       return type.name();             // can't demangle; just return internal name
+#endif
+}
+
+
 //
 // Target initialization
 //
 #if !defined(NDEBUG_STUBS)
 
-Target::Target() : showScope(false), showThread(false),        showPid(false), sink(NULL)
+Target::Target() 
+       : showScope(false), showThread(false),  showPid(false),
+         sink(NULL)
 {
        // put into singleton slot if first
        if (singleton == NULL)
                singleton = this;
+       
+       // insert terminate handler
+       if (!previousTerminator)        // first time we do this
+               previousTerminator = set_terminate(terminator);
 }
 
 Target::~Target()
@@ -188,7 +225,12 @@ bool Target::debugging(const char *scope)
 //
 void Target::dump(const char *format, va_list args)
 {
-       sink->dump(format, args);
+       char buffer[messageConstructionSize];   // building the message here
+       vsnprintf(buffer, sizeof(buffer), format, args);
+       for (char *p = buffer; *p; p++)
+               if (!isprint(*p) && !isspace(*p) || *p == '\r')
+                       *p = '?';
+       sink->dump(buffer);
 }
 
 bool Target::dump(const char *scope)
@@ -196,6 +238,7 @@ bool Target::dump(const char *scope)
        return dumpSelector(scope);
 }
 
+
 //
 // Selector objects.
 //
@@ -363,13 +406,27 @@ Target &Target::get()
 Target::Sink::~Sink()
 { }
 
-void Target::Sink::dump(const char *, va_list)
+void Target::Sink::dump(const char *)
 { }
 
 void Target::Sink::configure(const char *)
 { }
 
 
+//
+// The terminate handler installed when a Target is created
+//
+terminate_handler Target::previousTerminator;
+
+void Target::terminator()
+{
+       debug("exception", "uncaught exception terminates program");
+       previousTerminator();
+       debug("exception", "prior termination handler failed to abort; forcing abort");
+       abort();
+}
+
+
 //
 // File sinks (write to file via stdio)
 //
@@ -388,12 +445,12 @@ void FileSink::put(const char *buffer, unsigned int)
        putc('\n', file);
 }
 
-void FileSink::dump(const char *format, va_list args)
+void FileSink::dump(const char *text)
 {
        StLock<Mutex> locker(lock, false);
        if (lockIO)
                locker.lock();
-       vfprintf(file, format, args);
+       fputs(text, file);
 }
 
 void FileSink::configure(const char *options)
@@ -415,10 +472,10 @@ void SyslogSink::put(const char *buffer, unsigned int)
        syslog(priority, "%s", buffer);
 }
 
-void SyslogSink::dump(const char *format, va_list args)
+void SyslogSink::dump(const char *text)
 {
        // add to dump buffer
-       vsnprintf(dumpPtr, dumpBuffer + dumpBufferSize - dumpPtr, format, args);
+       snprintf(dumpPtr, dumpBuffer + dumpBufferSize - dumpPtr, "%s", text);
        
        // take off full lines and submit
        char *p = dumpBase;