Contents of /tags/mkinitrd-6_2_3/busybox/libbb/create_icmp6_socket.c
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Mon May 31 20:54:44 2010 UTC (14 years, 4 months ago) by niro
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Mon May 31 20:54:44 2010 UTC (14 years, 4 months ago) by niro
File MIME type: text/plain
File size: 903 byte(s)
tagged 'mkinitrd-6_2_3'
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 |
14 | int 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 |