--- a/apps/dtnrespond/dtnrespond.c	Thu Oct 13 15:41:53 2011 +0100
+++ b/apps/dtnrespond/dtnrespond.c	Tue Oct 18 11:52:07 2011 +0100
@@ -640,8 +640,10 @@
     if (i<buf_len) bpq->matching_rule = (u_int) buf[i++];
 
     // BPQ-value-length     SDNV
-    if ( (q_decoding_len = sdnv_decode (&(buf[i]), buf_len - i, &(bpq->query.query_len))) == -1 )
+    if ( (q_decoding_len = sdnv_decode (&(buf[i]), buf_len - i, &(bpq->query.query_len))) == -1 ) {
+        fprintf (stderr, "Error decoding BPQ-value-length\n");
         return -1;
+    }
     i += q_decoding_len;
 
     // BPQ-value            n-bytes
@@ -649,20 +651,26 @@
     i += bpq->query.query_len;
 
     // number of fragments  SDNV
-    if ( (f_decoding_len = sdnv_decode (&(buf[i]), buf_len - i, &(bpq->fragments.num_frag_returned))) == -1 )
+    if ( (f_decoding_len = sdnv_decode (&(buf[i]), buf_len - i, &(bpq->fragments.num_frag_returned))) == -1 ) {
+        fprintf (stderr, "Error decoding number of fragments\n");
         return -1;
+    }
     i += f_decoding_len;
 
     for (j=0; i<buf_len && j<bpq->fragments.num_frag_returned; ++j) {
 
         // fragment offsets     SDNV
-        if ( (decoding_len = sdnv_decode (&(buf[i]), buf_len - i, &(bpq->fragments.frag_offsets[j]))) == -1 )
+        if ( (decoding_len = sdnv_decode (&(buf[i]), buf_len - i, &(bpq->fragments.frag_offsets[j]))) == -1 ) {
+            fprintf (stderr, "Error decoding fragment[%d] offset\n", j);
             return -1;
+        }
         i += decoding_len;
 
         // fragment lengths     SDNV
-        if ( (decoding_len = sdnv_decode (&(buf[i]), buf_len - i, &(bpq->fragments.frag_lenghts[j]))) == -1 )
+        if ( (decoding_len = sdnv_decode (&(buf[i]), buf_len - i, &(bpq->fragments.frag_lenghts[j]))) == -1 ) {
+            fprintf (stderr, "Error decoding fragment[%d] length\n", j);
             return -1;
+        }
         i += decoding_len;
     }