modify scripts/* and tests/* to use polarssl_snprintf
diff --git a/scripts/data_files/error.fmt b/scripts/data_files/error.fmt
index b7bfbf2..107b5e1 100644
--- a/scripts/data_files/error.fmt
+++ b/scripts/data_files/error.fmt
@@ -30,6 +30,12 @@
 #include "polarssl/error.h"
 #endif
 
+#if defined(POLARSSL_PLATFORM_C)
+#include "polarssl/platform.h"
+#else
+#define polarssl_snprintf snprintf
+#endif
+
 #if defined(POLARSSL_ERROR_C)
 
 HEADER_INCLUDED
@@ -67,7 +73,7 @@
         // END generated code
 
         if( strlen( buf ) == 0 )
-            snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
+            polarssl_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
     }
 
     use_ret = ret & ~0xFF80;
@@ -85,7 +91,7 @@
         if( buflen - len < 5 )
             return;
 
-        snprintf( buf + len, buflen - len, " : " );
+        polarssl_snprintf( buf + len, buflen - len, " : " );
 
         buf += len + 3;
         buflen -= len + 3;
@@ -100,7 +106,7 @@
     if( strlen( buf ) != 0 )
         return;
 
-    snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
+    polarssl_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
 }
 
 #if defined(POLARSSL_ERROR_STRERROR_BC)
diff --git a/scripts/generate_errors.pl b/scripts/generate_errors.pl
index 04591b2..c0d9685 100755
--- a/scripts/generate_errors.pl
+++ b/scripts/generate_errors.pl
@@ -152,14 +152,14 @@
     {
         ${$code_check} .= "${white_space}if( use_ret == -($error_name) )\n".
                           "${white_space}\{\n".
-                          "${white_space}    snprintf( buf, buflen, \"$module_name - $description\" );\n".
+                          "${white_space}    polarssl_snprintf( buf, buflen, \"$module_name - $description\" );\n".
                           "${white_space}    return;\n".
                           "${white_space}}\n"
     }
     else
     {
         ${$code_check} .= "${white_space}if( use_ret == -($error_name) )\n".
-                          "${white_space}    snprintf( buf, buflen, \"$module_name - $description\" );\n"
+                          "${white_space}    polarssl_snprintf( buf, buflen, \"$module_name - $description\" );\n"
     }
 };