--- a/network.c	Fri May 25 20:16:05 2012 +0300
+++ b/network.c	Fri May 25 20:18:24 2012 +0300
@@ -550,3 +550,41 @@
 
     return nn_conn_send_msg(conn, user, tmp);
 }
+
+
+void nn_conn_dump_buffer(FILE *f, nn_conn_t *conn)
+{
+    char *p;
+    size_t offs, left;
+    
+    fprintf(f,
+    "\n--------------------------------------------------------------\n"
+    "err=%d, status=%d, got_bytes=%d, total_bytes=%d\n"
+    "buf=0x%p, in_ptr=0x%04x, ptr=0x%04x\n",
+    conn->err, conn->status, conn->got_bytes, conn->total_bytes,
+    conn->buf, conn->in_ptr - conn->buf, conn->ptr - conn->buf);
+    
+    // Dump buffer contents as a hexdump
+    for (offs = 0, left = conn->total_bytes, p = conn->buf; p < conn->in_ptr;)
+    {
+        char buf[NN_DUMP_BYTES + 1];
+        size_t bufoffs, amount = left < NN_DUMP_BYTES ? left : NN_DUMP_BYTES;
+        left -= amount;
+
+        // Dump offs | xx xx xx xx | and fill string
+        fprintf(f, "%04x | ", offs);
+        for (bufoffs = 0; bufoffs < amount; offs++, bufoffs++, p++)
+        {
+            fprintf(f, "%02x ", *p);
+            buf[bufoffs] = th_isprint(*p) ? *p : '.';
+        }
+        buf[bufoffs] = 0;
+
+        // Add padding
+        for (; bufoffs < NN_DUMP_BYTES; bufoffs++)
+            fprintf(f, "   ");
+
+        // Print string
+        fprintf(f, "| %s\n", buf);
+    }
+}

--- a/network.h	Fri May 25 20:16:05 2012 +0300
+++ b/network.h	Fri May 25 20:18:24 2012 +0300
@@ -29,6 +29,7 @@
 
 #define NN_CONNBUF_SIZE   (64 * 1024)
 #define NN_DELAY_USEC     (15 * 1000)
+#define NN_DUMP_BYTES	  16
 
 
 enum
@@ -127,4 +128,6 @@
 int         nn_conn_buf_strcmp(nn_conn_t *conn, const char *str);
 char *      nn_conn_buf_strstr(nn_conn_t *conn, const char *str);
 
+void        nn_conn_dump_buffer(FILE *f, nn_conn_t *conn);
+
 #endif