update comment

diff --git a/src/lib/util/dns.h b/src/lib/util/dns.h
index 3cffad115bea11458afb9828673fa35256fa3601..ef1d37936e4c51f510a7cbec33d754f89f1012cb 100644 (file)
--- a/src/lib/util/dns.h
+++ b/src/lib/util/dns.h
@@ -35,7 +35,7 @@ typedef struct {
 typedef struct {
        uint8_t const   *start;         //!< start of packet
        uint8_t const   *end;           //!< end of the packet
-       uint8_t         *mark;          //!< markup buffer
+       uint8_t         *mark;          //!< markup buffer used for decoding.
        int             num;            //!< number of used labels
        int             max;            //! maximum number of labels
        fr_dns_block_t  *blocks;        //!< array holding "max" labels