hush/libbb/create_icmp6_socket.c

39 lines
895 B
C
Raw Normal View History

/* vi: set sw=4 ts=4: */
/*
* Utility routines.
*
* create raw socket for icmp (IPv6 version) protocol
* and drop root privileges if running setuid
2008-12-07 00:52:58 +00:00
*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
#include "libbb.h"
2007-08-13 10:36:25 +00:00
#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)
2003-03-19 09:13:01 +00:00
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