idmap_strdupnull
rc = idmap_strdupnull(str, res.value.idmap_prop_val_u.utf8val);
retcode = idmap_strdupnull(&request.id1name, winname);
retcode = idmap_strdupnull(&request.id1domain, windomain);
rc = idmap_strdupnull(unixname, mapping->id2name);
rc = idmap_strdupnull(winname, mapping->id2name);
rc = idmap_strdupnull(windomain, mapping->id2domain);
retval = idmap_strdupnull(&to->windomain, from->windomain);
retval = idmap_strdupnull(&to->winname, from->winname);
retval = idmap_strdupnull(&to->unixname, from->unixname);
retcode = idmap_strdupnull(windomain, rule->windomain);
retcode = idmap_strdupnull(winname, rule->winname);
retcode = idmap_strdupnull(unixname, rule->unixname);
retcode = idmap_strdupnull(&rule->windomain, windomain);
retcode = idmap_strdupnull(&rule->winname, winname);
retcode = idmap_strdupnull(&rule->unixname, unixname);
retcode = idmap_strdupnull(&rule->windomain, windomain);
retcode = idmap_strdupnull(&rule->winname, winname);
retcode = idmap_strdupnull(&rule->unixname, unixname);
static idmap_stat idmap_strdupnull(char **, const char *);
retcode = idmap_strdupnull(&rule->windomain, windomain);
retcode = idmap_strdupnull(&rule->winname, winname);
retcode = idmap_strdupnull(&rule->unixname, unixname);
retcode = idmap_strdupnull(windomain,
retcode = idmap_strdupnull(winname,
retcode = idmap_strdupnull(unixname,
retcode = idmap_strdupnull(windomain,
retcode = idmap_strdupnull(winname,
retcode = idmap_strdupnull(unixname,