warn_ipmperr
static void warn_ipmperr(int, const char *, ...);
warn_ipmperr(err, "cannot get info for group `%s'",
warn_ipmperr(err, "cannot get info for interface `%s'",
warn_ipmperr(err, "cannot get info for `%s'", addr);
warn_ipmperr(err, "cannot get info for group `%s'",
warn_ipmperr(err, "cannot get info for group `%s'",
warn_ipmperr(err, "cannot get info for interface `%s'",
warn_ipmperr(err, "cannot get info for interface `%s'",
warn_ipmperr(err, "cannot get info for group `%s'",
warn_ipmperr(err, "cannot get broadcast/multicast info for "