Last change
on this file since 2934 was 821, checked in by Bruno Cornec, 18 years ago |
Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)
|
File size:
827 bytes
|
Line | |
---|
1 | /* vi: set sw=4 ts=4: */
|
---|
2 | /*
|
---|
3 | * Utility routines.
|
---|
4 | *
|
---|
5 | * create raw socket for icmp protocol test permission
|
---|
6 | * and drop root privileges if running setuid
|
---|
7 | *
|
---|
8 | */
|
---|
9 |
|
---|
10 | #include <sys/types.h>
|
---|
11 | #include <netdb.h>
|
---|
12 | #include <sys/socket.h>
|
---|
13 | #include <errno.h>
|
---|
14 | #include <unistd.h>
|
---|
15 | #include "libbb.h"
|
---|
16 |
|
---|
17 | int create_icmp_socket(void)
|
---|
18 | {
|
---|
19 | struct protoent *proto;
|
---|
20 | int sock;
|
---|
21 |
|
---|
22 | proto = getprotobyname("icmp");
|
---|
23 | /* if getprotobyname failed, just silently force
|
---|
24 | * proto->p_proto to have the correct value for "icmp" */
|
---|
25 | if ((sock = socket(AF_INET, SOCK_RAW,
|
---|
26 | (proto ? proto->p_proto : 1))) < 0) { /* 1 == ICMP */
|
---|
27 | if (errno == EPERM)
|
---|
28 | bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
|
---|
29 | else
|
---|
30 | bb_perror_msg_and_die(bb_msg_can_not_create_raw_socket);
|
---|
31 | }
|
---|
32 |
|
---|
33 | /* drop root privs if running setuid */
|
---|
34 | setuid(getuid());
|
---|
35 |
|
---|
36 | return sock;
|
---|
37 | }
|
---|
Note:
See
TracBrowser
for help on using the repository browser.