| * create raw socket for icmp protocol |
| * and drop root privileges if running setuid |
| * Licensed under GPLv2, see file LICENSE in this tarball for details. |
| int FAST_FUNC create_icmp_socket(void) |
| proto = getprotobyname("icmp"); |
| /* if getprotobyname failed, just silently force |
| * proto->p_proto to have the correct value for "icmp" */ |
| sock = socket(AF_INET, SOCK_RAW, |
| (proto ? proto->p_proto : 1)); /* 1 == ICMP */ |
| sock = socket(AF_INET, SOCK_RAW, 1); /* 1 == ICMP */ |
| 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 */ |