copy_string
copy_string(s, sysid, 32);
copy_string(s, volid, 32);
copy_string(s, volsetid, 128);
copy_string(s, pubid, 128);
copy_string(s, prepid, 128);
copy_string(s, applid, 128);
copy_string(s, copyfile, 37);
copy_string(s, absfile, 37);
copy_string(s, bibfile, 37);
static void copy_string(char *d, char *s, int maxlen);
retcode = copy_string(&to->idmap_id_u.sid.prefix,
retcode = copy_string(&mapping->id1domain, request->id1domain);
retcode = copy_string(&mapping->id1name, request->id1name);
retcode = copy_string(&mapping->id2domain, request->id2domain);
retcode = copy_string(&mapping->id2name, request->id2name);