Change to have a single library that works on both Win9x and WinNT.

[openssl.git] / crypto / bio / bss_log.c

diff --git a/crypto/bio/bss_log.c b/crypto/bio/bss_log.c
index be2ad38383b299dfcedcb13251626c1732129ae9..d5f905b62be46ca0bd5f24841017a8d0dee637b5 100644 (file)
--- a/crypto/bio/bss_log.c
+++ b/crypto/bio/bss_log.c
@@ -118,6 +118,18 @@ static int MS_CALLBACK slg_free(BIO *data);
 static void xopenlog(BIO* bp, const char* name, int level);
 static void xsyslog(BIO* bp, int priority, const char* string);
 static void xcloselog(BIO* bp);
+#ifdef WIN32
+LONG   (WINAPI *go_for_advapi)()       = RegOpenKeyEx;
+HANDLE (WINAPI *register_event_source)()       = NULL;
+BOOL   (WINAPI *deregister_event_source)()     = NULL;
+BOOL   (WINAPI *report_event)()        = NULL;
+#define DL_PROC(m,f)   (GetProcAddress( m, f ))
+#ifdef UNICODE
+#define DL_PROC_X(m,f) DL_PROC( m, f "W" )
+#else
+#define DL_PROC_X(m,f) DL_PROC( m, f "A" )
+#endif
+#endif
 
 static BIO_METHOD methods_slg=
        {
@@ -213,7 +225,27 @@ static int MS_CALLBACK slg_puts(BIO *bp, const char *str)
 
 static void xopenlog(BIO* bp, const char* name, int level)
 {
-       bp->ptr= (char *)RegisterEventSource(NULL, name);
+       if ( !register_event_source )
+               {
+               HANDLE  advapi;
+               if ( !(advapi = GetModuleHandle("advapi32")) )
+                       return;
+               register_event_source = (HANDLE (WINAPI *)())DL_PROC_X(advapi,
+                       "RegisterEventSource" );
+               deregister_event_source = (BOOL (WINAPI *)())DL_PROC(advapi,
+                       "DeregisterEventSource");
+               report_event = (BOOL (WINAPI *)())DL_PROC_X(advapi,
+                       "ReportEvent" );
+               if ( !(register_event_source && deregister_event_source &&
+                               report_event) )
+                       {
+                       register_event_source = NULL;
+                       deregister_event_source = NULL;
+                       report_event = NULL;
+                       return;
+                       }
+               }
+       bp->ptr= (char *)register_event_source(NULL, name);
 }
 
 static void xsyslog(BIO *bp, int priority, const char *string)
@@ -243,15 +275,15 @@ static void xsyslog(BIO *bp, int priority, const char *string)
        lpszStrings[0] = pidbuf;
        lpszStrings[1] = string;
 
-       if(bp->ptr)
-               ReportEvent(bp->ptr, evtype, 0, 1024, NULL, 2, 0,
+       if(report_event && bp->ptr)
+               report_event(bp->ptr, evtype, 0, 1024, NULL, 2, 0,
                                lpszStrings, NULL);
 }
        
 static void xcloselog(BIO* bp)
 {
-       if(bp->ptr)
-               DeregisterEventSource((HANDLE)(bp->ptr));
+       if(deregister_event_source && bp->ptr)
+               deregister_event_source((HANDLE)(bp->ptr));
        bp->ptr= NULL;
 }