diff --git a/library/debug.c b/library/debug.c
index f327baa..88a9dac 100644
--- a/library/debug.c
+++ b/library/debug.c
@@ -44,6 +44,12 @@
 #endif
 #endif /* _MSC_VER */
 
+#if defined(POLARSSL_PLATFORM_C)
+#include "polarssl/platform.h"
+#else
+#define polarssl_snprintf snprintf
+#endif
+
 static int debug_log_mode = POLARSSL_DEBUG_DFL_MODE;
 static int debug_threshold = 0;
 
@@ -86,7 +92,7 @@
         return;
     }
 
-    snprintf( str, maxlen, "%s(%04d): %s\n", file, line, text );
+    polarssl_snprintf( str, maxlen, "%s(%04d): %s\n", file, line, text );
     str[maxlen] = '\0';
     ssl->f_dbg( ssl->p_dbg, level, str );
 }
@@ -103,9 +109,9 @@
         return;
 
     if( debug_log_mode == POLARSSL_DEBUG_LOG_FULL )
-        idx = snprintf( str, maxlen, "%s(%04d): ", file, line );
+        idx = polarssl_snprintf( str, maxlen, "%s(%04d): ", file, line );
 
-    snprintf( str + idx, maxlen - idx, "%s() returned %d (-0x%04x)\n",
+    polarssl_snprintf( str + idx, maxlen - idx, "%s() returned %d (-0x%04x)\n",
               text, ret, -ret );
 
     str[maxlen] = '\0';
@@ -124,9 +130,9 @@
         return;
 
     if( debug_log_mode == POLARSSL_DEBUG_LOG_FULL )
-        idx = snprintf( str, maxlen, "%s(%04d): ", file, line );
+        idx = polarssl_snprintf( str, maxlen, "%s(%04d): ", file, line );
 
-    snprintf( str + idx, maxlen - idx, "dumping '%s' (%u bytes)\n",
+    polarssl_snprintf( str + idx, maxlen - idx, "dumping '%s' (%u bytes)\n",
               text, (unsigned int) len );
 
     str[maxlen] = '\0';
@@ -143,7 +149,7 @@
         {
             if( i > 0 )
             {
-                snprintf( str + idx, maxlen - idx, "  %s\n", txt );
+                polarssl_snprintf( str + idx, maxlen - idx, "  %s\n", txt );
                 ssl->f_dbg( ssl->p_dbg, level, str );
 
                 idx = 0;
@@ -151,14 +157,14 @@
             }
 
             if( debug_log_mode == POLARSSL_DEBUG_LOG_FULL )
-                idx = snprintf( str, maxlen, "%s(%04d): ", file, line );
+                idx = polarssl_snprintf( str, maxlen, "%s(%04d): ", file, line );
 
-            idx += snprintf( str + idx, maxlen - idx, "%04x: ",
+            idx += polarssl_snprintf( str + idx, maxlen - idx, "%04x: ",
                              (unsigned int) i );
 
         }
 
-        idx += snprintf( str + idx, maxlen - idx, " %02x",
+        idx += polarssl_snprintf( str + idx, maxlen - idx, " %02x",
                          (unsigned int) buf[i] );
         txt[i % 16] = ( buf[i] > 31 && buf[i] < 127 ) ? buf[i] : '.' ;
     }
@@ -166,9 +172,9 @@
     if( len > 0 )
     {
         for( /* i = i */; i % 16 != 0; i++ )
-            idx += snprintf( str + idx, maxlen - idx, "   " );
+            idx += polarssl_snprintf( str + idx, maxlen - idx, "   " );
 
-        snprintf( str + idx, maxlen - idx, "  %s\n", txt );
+        polarssl_snprintf( str + idx, maxlen - idx, "  %s\n", txt );
         ssl->f_dbg( ssl->p_dbg, level, str );
     }
 }
@@ -184,11 +190,11 @@
     if( ssl->f_dbg == NULL || level > debug_threshold )
         return;
 
-    snprintf( str, maxlen, "%s(X)", text );
+    polarssl_snprintf( str, maxlen, "%s(X)", text );
     str[maxlen] = '\0';
     debug_print_mpi( ssl, level, file, line, str, &X->X );
 
-    snprintf( str, maxlen, "%s(Y)", text );
+    polarssl_snprintf( str, maxlen, "%s(Y)", text );
     str[maxlen] = '\0';
     debug_print_mpi( ssl, level, file, line, str, &X->Y );
 }
@@ -215,9 +221,9 @@
             break;
 
     if( debug_log_mode == POLARSSL_DEBUG_LOG_FULL )
-        idx = snprintf( str, maxlen, "%s(%04d): ", file, line );
+        idx = polarssl_snprintf( str, maxlen, "%s(%04d): ", file, line );
 
-    snprintf( str + idx, maxlen - idx, "value of '%s' (%d bits) is:\n",
+    polarssl_snprintf( str + idx, maxlen - idx, "value of '%s' (%d bits) is:\n",
               text, (int) ( ( n * ( sizeof(t_uint) << 3 ) ) + j + 1 ) );
 
     str[maxlen] = '\0';
@@ -240,16 +246,16 @@
             {
                 if( j > 0 )
                 {
-                    snprintf( str + idx, maxlen - idx, "\n" );
+                    polarssl_snprintf( str + idx, maxlen - idx, "\n" );
                     ssl->f_dbg( ssl->p_dbg, level, str );
                     idx = 0;
                 }
 
                 if( debug_log_mode == POLARSSL_DEBUG_LOG_FULL )
-                    idx = snprintf( str, maxlen, "%s(%04d): ", file, line );
+                    idx = polarssl_snprintf( str, maxlen, "%s(%04d): ", file, line );
             }
 
-            idx += snprintf( str + idx, maxlen - idx, " %02x", (unsigned int)
+            idx += polarssl_snprintf( str + idx, maxlen - idx, " %02x", (unsigned int)
                              ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF );
 
             j++;
@@ -261,13 +267,13 @@
     {
         if( debug_log_mode == POLARSSL_DEBUG_LOG_FULL )
         {
-            idx = snprintf( str, maxlen, "%s(%04d): ", file, line );
+            idx = polarssl_snprintf( str, maxlen, "%s(%04d): ", file, line );
 
         }
-        idx += snprintf( str + idx, maxlen - idx, " 00" );
+        idx += polarssl_snprintf( str + idx, maxlen - idx, " 00" );
     }
 
-    snprintf( str + idx, maxlen - idx, "\n" );
+    polarssl_snprintf( str + idx, maxlen - idx, "\n" );
     ssl->f_dbg( ssl->p_dbg, level, str );
 }
 #endif /* POLARSSL_BIGNUM_C */
@@ -294,7 +300,7 @@
         if( items[i].type == POLARSSL_PK_DEBUG_NONE )
             return;
 
-        snprintf( name, sizeof( name ), "%s%s", text, items[i].name );
+        polarssl_snprintf( name, sizeof( name ), "%s%s", text, items[i].name );
         name[sizeof( name ) - 1] = '\0';
 
         if( items[i].type == POLARSSL_PK_DEBUG_MPI )
@@ -321,7 +327,7 @@
 
     if( debug_log_mode == POLARSSL_DEBUG_LOG_FULL )
     {
-        snprintf( prefix, maxlen, "%s(%04d): ", file, line );
+        polarssl_snprintf( prefix, maxlen, "%s(%04d): ", file, line );
         prefix[maxlen] = '\0';
     }
     else
@@ -335,9 +341,9 @@
         x509_crt_info( buf, sizeof( buf ) - 1, prefix, crt );
 
         if( debug_log_mode == POLARSSL_DEBUG_LOG_FULL )
-            idx = snprintf( str, maxlen, "%s(%04d): ", file, line );
+            idx = polarssl_snprintf( str, maxlen, "%s(%04d): ", file, line );
 
-        snprintf( str + idx, maxlen - idx, "%s #%d:\n%s",
+        polarssl_snprintf( str + idx, maxlen - idx, "%s #%d:\n%s",
                   text, ++i, buf );
 
         str[maxlen] = '\0';