syslog-385.tar.gz

[apple/syslog.git] / libsystem_asl.tproj / src / syslog.c

diff --git a/libsystem_asl.tproj/src/syslog.c b/libsystem_asl.tproj/src/syslog.c
index ae0c402f15ef137da7ec8e8790d69f8992d87348..6894d49863ac7b941e77b21961fd5ffeedf7f53c 100644 (file)
--- a/libsystem_asl.tproj/src/syslog.c
+++ b/libsystem_asl.tproj/src/syslog.c
@@ -60,6 +60,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdint.h>

+#include <stdarg.h>

 #include <pthread.h>
 #include <dispatch/dispatch.h>
 #include <asl.h>
 #include <pthread.h>
 #include <dispatch/dispatch.h>
 #include <asl.h>


@@ -68,12 +69,6 @@
 #include <os/log.h>
 #include <os/log_private.h>
 
 #include <os/log.h>
 #include <os/log_private.h>
 

-#ifdef __STDC__
-#include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
-

 #define        LOG_NO_NOTIFY   0x1000
 extern const char *asl_syslog_faciliy_num_to_name(int n);
 
 #define        LOG_NO_NOTIFY   0x1000
 extern const char *asl_syslog_faciliy_num_to_name(int n);
 


@@ -110,9 +105,7 @@ extern uint32_t _asl_evaluate_send(asl_object_t client, asl_object_t m, int slev
 extern uint32_t _asl_lib_vlog(asl_object_t obj, uint32_t eval, asl_object_t msg, const char *format, va_list ap);
 extern uint32_t _asl_lib_vlog_text(asl_object_t obj, uint32_t eval, asl_object_t msg, const char *format, va_list ap);
 
 extern uint32_t _asl_lib_vlog(asl_object_t obj, uint32_t eval, asl_object_t msg, const char *format, va_list ap);
 extern uint32_t _asl_lib_vlog_text(asl_object_t obj, uint32_t eval, asl_object_t msg, const char *format, va_list ap);
 

-
-/* SHIM SPI */
-asl_object_t
+static void

 _syslog_asl_client()
 {
        pthread_mutex_lock(&_sl_lock);
 _syslog_asl_client()
 {
        pthread_mutex_lock(&_sl_lock);


@@ -123,35 +116,31 @@ _syslog_asl_client()
                asl_set_filter(_sl_asl, _sl_mask);
        }
        pthread_mutex_unlock(&_sl_lock);
                asl_set_filter(_sl_asl, _sl_mask);
        }
        pthread_mutex_unlock(&_sl_lock);

-
-       return _sl_asl;

 }
 
 }
 

-/*
- * syslog, vsyslog --
- *     print message on log file; output is intended for syslogd(8).
- */
-
-void
-vsyslog(int pri, const char *fmt, va_list ap)
+static void
+_vsyslog(int pri, const char *fmt, va_list ap, void *addr, bool mirror)

 {
        int level = pri & LOG_PRIMASK;
        int fac = pri & LOG_FACMASK;
 {
        int level = pri & LOG_PRIMASK;
        int fac = pri & LOG_FACMASK;

+       asl_object_t msg;

        uint32_t eval;
        uint32_t eval;

-       void *addr;
+       bool trace;

 
        _syslog_asl_client();
 
 
        _syslog_asl_client();
 

-       eval = _asl_evaluate_send(_sl_asl, NULL, level);
+       msg = asl_new(ASL_TYPE_MSG);

 
 

-       /* don't send install messages to Activity Tracing */
-       if (fac == LOG_INSTALL || (fac == 0 && _sl_fac == LOG_INSTALL)) {
-               eval &= ~EVAL_SEND_TRACE;
+       if (fac != 0)
+       {
+               const char *facility = asl_syslog_faciliy_num_to_name(fac);
+               if (facility != NULL) asl_set(msg, ASL_KEY_FACILITY, facility);

        }
 
        }
 

-       addr = __builtin_return_address(0);
+       eval = _asl_evaluate_send(_sl_asl, msg, level);
+       trace = (eval & EVAL_SEND_TRACE) && os_log_shim_enabled(addr);

 
 

-       if ((eval & EVAL_SEND_TRACE) && os_log_shim_enabled(addr))
+       if (trace)

        {
                va_list ap_copy;
                os_log_type_t type = shim_syslog_to_log_type[level];
        {
                va_list ap_copy;
                os_log_type_t type = shim_syslog_to_log_type[level];


@@ -160,123 +149,60 @@ vsyslog(int pri, const char *fmt, va_list ap)
                os_log_with_args(OS_LOG_DEFAULT, type, fmt, ap_copy, addr);
                va_end(ap_copy);
 
                os_log_with_args(OS_LOG_DEFAULT, type, fmt, ap_copy, addr);
                va_end(ap_copy);
 

-               if (eval & EVAL_TEXT_FILE)
+               if ((eval & EVAL_TEXT_FILE) && !mirror)

                {
                {

-                       asl_object_t msg = asl_new(ASL_TYPE_MSG);
-                       const char *facility;
-
-                       if (fac != 0)
-                       {
-                               facility = asl_syslog_faciliy_num_to_name(fac);
-                               if (facility != NULL) asl_set(msg, ASL_KEY_FACILITY, facility);
-                       }
-

                        _asl_lib_vlog_text(_sl_asl, eval, msg, fmt, ap);
                        _asl_lib_vlog_text(_sl_asl, eval, msg, fmt, ap);

-
-                       asl_release(msg);

                }
        }
                }
        }

-       else if (eval & EVAL_ASL)
-       {
-               asl_object_t msg = asl_new(ASL_TYPE_MSG);
-               const char *facility;
-
-               if (fac != 0)
-               {
-                       facility = asl_syslog_faciliy_num_to_name(fac);
-                       if (facility != NULL) asl_set(msg, ASL_KEY_FACILITY, facility);
-               }

 
 

+       if ((eval & EVAL_ASL) && (mirror || !trace))
+       {

                _asl_lib_vlog(_sl_asl, eval, msg, fmt, ap);
                _asl_lib_vlog(_sl_asl, eval, msg, fmt, ap);

-
-               asl_release(msg);

        }
        }

-}
-
-void
-#ifdef __STDC__
-syslog(int pri, const char *fmt, ...)
-#else
-syslog(pri, fmt, va_alist)
-int pri;
-char *fmt;
-va_dcl
-#endif
-{
-       int level = pri & LOG_PRIMASK;
-       int fac = pri & LOG_FACMASK;
-       uint32_t eval;
-       void *addr;

 
 

-       _syslog_asl_client();
-
-       eval = _asl_evaluate_send(_sl_asl, NULL, level);
+       asl_release(msg);
+}

 
 

-       /* don't send install messages to Activity Tracing */
-       if (fac == LOG_INSTALL || (fac == 0 && _sl_fac == LOG_INSTALL)) {
-               eval &= ~EVAL_SEND_TRACE;
-       }
+#if TARGET_OS_OSX

 
 

-       addr = __builtin_return_address(0);
+extern typeof(syslog) syslog_legacy asm("_syslog");
+extern typeof(syslog) syslog_os_log asm("_syslog" __DARWIN_SUF_EXTSN);

 
 

-       if ((eval & EVAL_SEND_TRACE) && os_log_shim_enabled(addr))
-       {
-               va_list ap;
-               os_log_type_t type = shim_syslog_to_log_type[level];
-
-#ifdef __STDC__
-               va_start(ap, fmt);
-#else
-               va_start(ap);
-#endif
-               os_log_with_args(OS_LOG_DEFAULT, type, fmt, ap, addr);
-               va_end(ap);
+void
+syslog_legacy(int pri, const char *fmt, ...)
+{
+       va_list ap;
+       va_start(ap, fmt);
+       _vsyslog(pri, fmt, ap, __builtin_return_address(0), true);
+       va_end(ap);
+}

 
 

-               if (eval & EVAL_TEXT_FILE)
-               {
-                       va_list ap;
-                       asl_object_t msg = asl_new(ASL_TYPE_MSG);
-                       const char *facility;
-
-                       if (fac != 0)
-                       {
-                               facility = asl_syslog_faciliy_num_to_name(fac);
-                               if (facility != NULL) asl_set(msg, ASL_KEY_FACILITY, facility);
-                       }
-
-#ifdef __STDC__
-                       va_start(ap, fmt);
-#else
-                       va_start(ap);
-#endif
-                       _asl_lib_vlog_text(_sl_asl, eval, msg, fmt, ap);
-                       va_end(ap);
+void
+syslog_os_log(int pri, const char *fmt, ...)
+{
+       va_list ap;
+       va_start(ap, fmt);
+       _vsyslog(pri, fmt, ap, __builtin_return_address(0), false);
+       va_end(ap);
+}

 
 

-                       asl_release(msg);
-               }
-       }
-       else if (eval & EVAL_ASL)
-       {
-               va_list ap;
-               asl_object_t msg = asl_new(ASL_TYPE_MSG);
-               const char *facility;
+#else /* !TARGET_OS_OSX */

 
 

-               if (fac != 0)
-               {
-                       facility = asl_syslog_faciliy_num_to_name(fac);
-                       if (facility != NULL) asl_set(msg, ASL_KEY_FACILITY, facility);
-               }
+void
+syslog(int pri, const char *fmt, ...)
+{
+       va_list ap;
+       va_start(ap, fmt);
+       _vsyslog(pri, fmt, ap, __builtin_return_address(0), false);
+       va_end(ap);
+}

 
 

-#ifdef __STDC__
-               va_start(ap, fmt);
-#else
-               va_start(ap);
-#endif
-               _asl_lib_vlog(_sl_asl, eval, msg, fmt, ap);
-               va_end(ap);
+#endif /* !TARGET_OS_OSX */

 
 

-               asl_release(msg);
-       }
+void
+vsyslog(int pri, const char *fmt, va_list ap)
+{
+       _vsyslog(pri, fmt, ap, __builtin_return_address(0), false);

 }
 
 #ifndef BUILDING_VARIANT
 }
 
 #ifndef BUILDING_VARIANT