Show invalid header in hex

diff --git a/src/client.c b/src/client.c
index 43ca9e991dc5f0f0a8a493b133c876e23d636828..056fb96927ee5f6bafe8d87befedf8cd9a8a73c7 100644 (file)
--- a/src/client.c
+++ b/src/client.c
@@ -22,6 +22,15 @@
 
 #include "bouncer.h"
 
+static const char *hdr2hex(const struct MBuf *data, char *buf, unsigned buflen)
+{
+       const uint8_t *bin = data->data + data->read_pos;
+       unsigned int dlen;
+
+       dlen = mbuf_avail_for_read(data);
+       return bin2hex(bin, dlen, buf, buflen);
+}
+
 static bool check_client_passwd(PgSocket *client, const char *passwd)
 {
        char md5[MD5_PASSWD_LEN + 1];
@@ -389,7 +398,9 @@ bool client_proto(SBuf *sbuf, SBufEvent evtype, struct MBuf *data)
                }
 
                if (!get_header(data, &pkt)) {
-                       disconnect_client(client, true, "bad packet header");
+                       char hex[8*2 + 1];
+                       disconnect_client(client, true, "bad packet header: '%s'",
+                                         hdr2hex(data, hex, sizeof(hex)));
                        return false;
                }
                slog_noise(client, "pkt='%c' len=%d", pkt_desc(&pkt), pkt.len);