/* vi: set sw=4 ts=4: */ /* * Utility routines. * * create raw socket for icmp (IPv6 version) protocol * and drop root privileges if running setuid */ #include "libbb.h" #if ENABLE_FEATURE_IPV6 int FAST_FUNC create_icmp6_socket(void) { int sock; #if 0 struct protoent *proto; proto = getprotobyname("ipv6-icmp"); /* if getprotobyname failed, just silently force * proto->p_proto to have the correct value for "ipv6-icmp" */ sock = socket(AF_INET6, SOCK_RAW, (proto ? proto->p_proto : IPPROTO_ICMPV6)); #else sock = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6); #endif if (sock < 0) { if (errno == EPERM) bb_error_msg_and_die(bb_msg_perm_denied_are_you_root); bb_perror_msg_and_die(bb_msg_can_not_create_raw_socket); } /* drop root privs if running setuid */ xsetuid(getuid()); return sock; } #endif