Remove use of inttypes.h in MSVC from ssl_server2

The sample application programs/ssl/ssl_server2.c was previously
modifies to use inttypes.h to parse a string to a 64-bit integer.
However, MSVC does not support C99, so compilation fails. This
patch modifies the sample app to use the MSVC specific parsing
functions instead of inttypes.h.

programs/ssl/ssl_server2.c

@@ -64,7 +64,10 @@ int main( void )
 #include <stdlib.h>
 #include <string.h>
 #include <stdint.h>
+
+#if !defined(_MSC_VER)
 #include <inttypes.h>
+#endif
 
 #if !defined(_WIN32)
 #include <signal.h>
@@ -1056,8 +1059,13 @@ int main( int argc, char *argv[] )
         }
         else if( strcmp( p, "renego_period" ) == 0 )
         {
-            if( sscanf( q, "%" SCNu64, &opt.renego_period ) != 1 ||
-                opt.renego_period < 2 )
+#if defined(_MSC_VER)
+            opt.renego_period = _strtoui64( q, NULL, 10 );
+#else
+            if( sscanf( q, "%" SCNu64, &opt.renego_period ) != 1 )
+                goto usage;
+#endif /* _MSC_VER */
+            if( opt.renego_period < 2 )
                 goto usage;
         }
         else if( strcmp( p, "exchanges" ) == 0 )