--- a/libmisc/chkname.c 2014-05-08 01:43:11.000000000 -0700 +++ b/libmisc/chkname.c 2017-04-27 11:47:16.789145415 -0700 @@ -52,15 +52,17 @@ * User/group names must match [a-z_][a-z0-9_-]*[$] */ if (('\0' == *name) || - !((('a' <= *name) && ('z' >= *name)) || ('_' == *name))) { + !((('a' <= *name) && ('z' >= *name)) || ('_' == *name) || (('A' <= *name) && ('Z' >= *name)))) { return false; } while ('\0' != *++name) { if (!(( ('a' <= *name) && ('z' >= *name) ) || + ( ('A' <= *name) && ('Z' >= *name) ) || ( ('0' <= *name) && ('9' >= *name) ) || ('_' == *name) || ('-' == *name) || + ('.' == *name) || ( ('$' == *name) && ('\0' == *(name + 1)) ) )) { return false;