Commit Diff
--- src/cmd/ndb/dblookup.c +++ src/cmd/ndb/dblookup.c @@ -111,7 +111,7 @@ dblookup(char *name, int class, int type, int auth, in /* try lower case version */ for(cp = name; *cp; cp++) - *cp = tolower(*cp); + *cp = tolower((uchar)*cp); if(cachedb) rp = rrlookup(dp, type, NOneg); else