smb_mbstooem
len = smb_mbstooem(oemcs, "foo", 8);
len = smb_mbstooem(oemcs, fubar_mbs, 8);
len = smb_mbstooem(oemcs, mbsp, 8);
rlen = smb_mbstooem(oembuf, mbs, oemlen);
oemlen = smb_mbstooem(oembuf, mbsbuf, 8);
slen = smb_mbstooem(nam->nam_str, auth->nb_domain, domain_len);
slen = smb_mbstooem(nam->nam_str + hdr->auth_length,
rlen = smb_mbstooem(oembuf, mbs, oemlen);
int smb_mbstooem(uint8_t *, const char *, int);