1aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger/* 2aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * inet_proto.c 3aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 4aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * This program is free software; you can redistribute it and/or 5aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * modify it under the terms of the GNU General Public License 6aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * as published by the Free Software Foundation; either version 7aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 2 of the License, or (at your option) any later version. 8aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 9aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> 10aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 11aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger */ 12aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 13aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <stdio.h> 14aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <stdlib.h> 15aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <unistd.h> 16aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <syslog.h> 17aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <fcntl.h> 18aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <sys/socket.h> 19aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <netinet/in.h> 20aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <netdb.h> 21aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <string.h> 22aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 23aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include "utils.h" 24aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 25aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerchar *inet_proto_n2a(int proto, char *buf, int len) 26aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 27aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger static char ncache[16]; 28aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger static int icache = -1; 29aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct protoent *pe; 30aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 31aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (proto == icache) 32aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return ncache; 33aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 34aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger pe = getprotobynumber(proto); 35aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (pe) { 36aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger icache = proto; 37aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger strncpy(ncache, pe->p_name, 16); 38aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger strncpy(buf, pe->p_name, len); 39aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return buf; 40aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 41aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger snprintf(buf, len, "ipproto-%d", proto); 42aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return buf; 43aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 44aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 45aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerint inet_proto_a2n(char *buf) 46aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 47aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger static char ncache[16]; 48aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger static int icache = -1; 49aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct protoent *pe; 50aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 51aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (icache>=0 && strcmp(ncache, buf) == 0) 52aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return icache; 53aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 54aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (buf[0] >= '0' && buf[0] <= '9') { 55aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger __u8 ret; 56aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (get_u8(&ret, buf, 10)) 57aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 58aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return ret; 59aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 60aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 61aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger pe = getprotobyname(buf); 62aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (pe) { 63aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger icache = pe->p_proto; 64aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger strncpy(ncache, pe->p_name, 16); 65aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return pe->p_proto; 66aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 67aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 68aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 69aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 70aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 71