smb_strlwr
(void) smb_strlwr(dns_domain);
(void) smb_strlwr(username);
(void) smb_strlwr(buf);
(void) smb_strlwr(name);
grp.sg_name = smb_strlwr(gname);
(void) smb_strlwr(hostname);
(void) smb_strlwr(ah->domain);
(void) smb_strlwr(entry->dqe_fqdn);
(void) smb_strlwr(fqdn);
pn->p_svc, smb_strlwr(nbname), fqdn);
(void) smb_strlwr(opipe->p_name);
(void) smb_strlwr(pn->pn_path);
(void) smb_strlwr(tcon->path);
char *smb_strlwr(char *);