blob: a22ac5d02a54472ec94560490b1671d1eb266ab4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/* 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 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
|