1 /* vi: set sw=4 ts=4: */
5 * create raw socket for icmp protocol test permission
6 * and drop root privileges if running setuid
10 //#include <sys/types.h>
12 //#include <sys/socket.h>
15 int create_icmp_socket(void)
17 struct protoent *proto;
20 proto = getprotobyname("icmp");
21 /* if getprotobyname failed, just silently force
22 * proto->p_proto to have the correct value for "icmp" */
23 sock = socket(AF_INET, SOCK_RAW,
24 (proto ? proto->p_proto : 1)); /* 1 == ICMP */
27 bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
28 bb_perror_msg_and_die(bb_msg_can_not_create_raw_socket);
31 /* drop root privs if running setuid */