Perror2
Perror2(grname, "cannot create IPMP group");
Perror2(name, "cannot remove existing "
Perror2(grname, "SIOCGLIFGROUPINFO");
Perror2(grname, "cannot configure IPMP group");
Perror2(grname, "cannot get address list");
Perror2(name, "SIOCSLIFGROUPNAME");
Perror2("open", udp_dev_name);
Perror2("SIOCGLIFMUXID", udp_dev_name);
Perror2("I_PUNLINK", udp_dev_name);
Perror2("I_PUNLINK", udp_dev_name);
Perror2("I_PLINK", UDP_DEV_NAME);
Perror2("I_PLINK", UDP_DEV_NAME);
Perror2("fail to insert module", mod.mod_name);
Perror2("fail to remove module", mod.mod_name);
Perror2(cmd, lifr.lifr_name);
Perror2(cmd, str);
extern void Perror2(const char *, const char *);
Perror2(target, "write");
static void Perror2(const char *, const char *);