1/* vi: set sw=4 ts=4: */ 2/* 3 * Utility routines. 4 * 5 * create raw socket for icmp (IPv6 version) protocol 6 * and drop root privileges if running setuid 7 * 8 * Licensed under GPLv2, see file LICENSE in this tarball for details. 9 */ 10 11#include "libbb.h" 12 13#if ENABLE_FEATURE_IPV6 14int FAST_FUNC create_icmp6_socket(void) 15{ 16 int sock; 17#if 0 18 struct protoent *proto; 19 proto = getprotobyname("ipv6-icmp"); 20 /* if getprotobyname failed, just silently force 21 * proto->p_proto to have the correct value for "ipv6-icmp" */ 22 sock = socket(AF_INET6, SOCK_RAW, 23 (proto ? proto->p_proto : IPPROTO_ICMPV6)); 24#else 25 sock = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6); 26#endif 27 if (sock < 0) { 28 if (errno == EPERM) 29 bb_error_msg_and_die(bb_msg_perm_denied_are_you_root); 30 bb_perror_msg_and_die(bb_msg_can_not_create_raw_socket); 31 } 32 33 /* drop root privs if running setuid */ 34 xsetuid(getuid()); 35 36 return sock; 37} 38#endif 39