silence coverity - add nul termination

(cherry picked from commit 8eb2d262dc8f542f175d21033a956d8b40a4275f)

diff --git a/lib/dns/gen.c b/lib/dns/gen.c
index b9556c698a17aad3662a8cdb1bf01a981a3ed2f0..ff41de6d624a084ec93d1d38848c50e67a1d7e86 100644 (file)
--- a/lib/dns/gen.c
+++ b/lib/dns/gen.c
@@ -451,6 +451,7 @@ add(int rdclass, const char *classname, int type, const char *typename,
        }
        newcc->rdclass = rdclass;
        strncpy(newcc->classname, classname, sizeof(newcc->classname));
+       newcc->classname[sizeof(newcc->classname) - 1] = '\0';
        cc = classes;
        oldcc = NULL;