diff -uNr iperf-2.0.5/compat/Thread.c iperf-2.0.5p/compat/Thread.c
--- iperf-2.0.5/compat/Thread.c	2010-03-31 02:08:24.000000000 +0300
+++ iperf-2.0.5p/compat/Thread.c	2011-07-28 17:07:28.811596005 +0300
@@ -381,7 +381,7 @@
     Condition_Lock( thread_sNum_cond );
     thread_sNum -= nonterminating_num;
     if ( thread_sNum > 1 && nonterminating_num > 0 && interrupt != 0 ) {
-        fprintf( stderr, wait_server_threads );
+        fprintf( stderr, "%s", wait_server_threads );
     }
     nonterminating_num = 0;
     Condition_Signal( &thread_sNum_cond );
diff -uNr iperf-2.0.5/src/ReportDefault.c iperf-2.0.5p/src/ReportDefault.c
--- iperf-2.0.5/src/ReportDefault.c	2010-03-31 01:57:17.000000000 +0300
+++ iperf-2.0.5p/src/ReportDefault.c	2011-07-28 17:12:10.968602850 +0300
@@ -78,7 +78,7 @@
     if ( stats->mUDP != (char)kMode_Server ) {
         // TCP Reporting
         if( !header_printed ) {
-            printf( report_bw_header);
+            printf( "%s", report_bw_header);
             header_printed = 1;
         }
         printf( report_bw_format, stats->transferID, 
@@ -87,7 +87,7 @@
     } else {
         // UDP Reporting
         if( !header_printed ) {
-            printf( report_bw_jitter_loss_header);
+            printf( "%s", report_bw_jitter_loss_header);
             header_printed = 1;
         }
         printf( report_bw_jitter_loss_format, stats->transferID, 
@@ -159,7 +159,7 @@
                   (data->mThreadMode == kMode_Listener ? 0 : 1) );
     win_requested = data->mTCPWin;
 
-    printf( separator_line );
+    printf( "%s", separator_line );
     if ( data->mThreadMode == kMode_Listener ) {
         printf( server_port,
                 (isUDP( data ) ? "UDP" : "TCP"), 
@@ -198,7 +198,7 @@
         printf( warn_window_requested, buffer );
     }
     printf( "\n" );
-    printf( separator_line );
+    printf( "%s", separator_line );
 }
 
 /*
@@ -286,7 +286,7 @@
         } else if ( checkMSS_MTU( inMSS, 576 ) ) {
             net = "minimum";
             mtu = 576;
-            printf( warn_no_pathmtu );
+            printf( "%s", warn_no_pathmtu );
         } else {
             mtu = inMSS + 40;
             net = "unknown interface";
diff -uNr iperf-2.0.5/src/Reporter.c iperf-2.0.5p/src/Reporter.c
--- iperf-2.0.5/src/Reporter.c	2010-03-31 02:08:24.000000000 +0300
+++ iperf-2.0.5p/src/Reporter.c	2011-07-28 17:09:54.911601529 +0300
@@ -896,7 +896,7 @@
         } else if ( checkMSS_MTU( inMSS, 576 ) ) {
             net = "minimum";
             mtu = 576;
-            printf( warn_no_pathmtu );
+            printf( "%s", warn_no_pathmtu );
         } else {
             mtu = inMSS + 40;
             net = "unknown interface";
diff -uNr iperf-2.0.5/src/Settings.cpp iperf-2.0.5p/src/Settings.cpp
--- iperf-2.0.5/src/Settings.cpp	2010-07-09 04:05:46.000000000 +0300
+++ iperf-2.0.5p/src/Settings.cpp	2011-07-28 17:13:42.257597674 +0300
@@ -375,8 +375,8 @@
             break;
 
         case 'h': // print help and exit
-            fprintf(stderr, usage_long1);
-            fprintf(stderr, usage_long2);
+            fprintf(stderr, "%s", usage_long1);
+            fprintf(stderr, "%s", usage_long2);
             exit(1);
             break;
 
@@ -482,7 +482,7 @@
             break;
 
         case 'v': // print version and exit
-            fprintf( stderr, version );
+            fprintf( stderr, "%s", version );
             exit(1);
             break;