+++ /dev/null
-/* From NetBSD: nametoaddr.c,v 1.3 1995/04/29 05:42:23 cgd Exp */
-
-/*
- * Copyright (c) 1990, 1991, 1992, 1993, 1994
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that: (1) source code distributions
- * retain the above copyright notice and this paragraph in its entirety, (2)
- * distributions including binary code include the above copyright notice and
- * this paragraph in its entirety in the documentation or other materials
- * provided with the distribution, and (3) all advertising materials mentioning
- * features or use of this software display the following acknowledgement:
- * ``This product includes software developed by the University of California,
- * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
- * the University nor the names of its contributors may be used to endorse
- * or promote products derived from this software without specific prior
- * written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Name to id translation routines used by the scanner.
- * These functions are not time critical.
- */
-
-#ifndef lint
-static char rcsid[] =
- "@(#) Header: nametoaddr.c,v 1.21 94/06/20 19:07:54 leres Exp (LBL)";
-#endif
-
-#include <stdio.h>
-#ifdef __NetBSD__
-#include <stdlib.h>
-#include <string.h>
-#endif
-#include <ctype.h>
-#include <errno.h>
-#include <netdb.h>
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <net/if.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <net/ppp_defs.h>
-
-#include "bpf_compile.h"
-#include "gencode.h"
-
-#ifndef __GNUC__
-#define inline
-#endif
-
-#ifndef NTOHL
-#define NTOHL(x) (x) = ntohl(x)
-#define NTOHS(x) (x) = ntohs(x)
-#endif
-
-/*
- * Convert host name to internet address.
- * Return 0 upon failure.
- */
-u_long **
-pcap_nametoaddr(const char *name)
-{
-#ifndef h_addr
- static u_long *hlist[2];
-#endif
- u_long **p;
- struct hostent *hp;
-
- if ((hp = gethostbyname(name)) != NULL) {
-#ifndef h_addr
- hlist[0] = (u_long *)hp->h_addr;
- NTOHL(hp->h_addr);
- return hlist;
-#else
- for (p = (u_long **)hp->h_addr_list; *p; ++p)
- NTOHL(**p);
- return (u_long **)hp->h_addr_list;
-#endif
- }
- else
- return 0;
-}
-
-/*
- * Convert net name to internet address.
- * Return 0 upon failure.
- */
-u_long
-pcap_nametonetaddr(const char *name)
-{
- struct netent *np;
-
- if ((np = getnetbyname(name)) != NULL)
- return np->n_net;
- else
- return 0;
-}
-
-/*
- * Convert a port name to its port and protocol numbers.
- * We assume only TCP or UDP.
- * Return 0 upon failure.
- */
-int
-pcap_nametoport(const char *name, int *port, int *proto)
-{
- struct servent *sp;
- char *other;
-
- sp = getservbyname(name, (char *)0);
- if (sp != NULL) {
- NTOHS(sp->s_port);
- *port = sp->s_port;
- *proto = pcap_nametoproto(sp->s_proto);
- /*
- * We need to check /etc/services for ambiguous entries.
- * If we find the ambiguous entry, and it has the
- * same port number, change the proto to PROTO_UNDEF
- * so both TCP and UDP will be checked.
- */
- if (*proto == IPPROTO_TCP)
- other = "udp";
- else
- other = "tcp";
-
- sp = getservbyname(name, other);
- if (sp != 0) {
- NTOHS(sp->s_port);
- if (*port != sp->s_port)
- /* Can't handle ambiguous names that refer
- to different port numbers. */
-#ifdef notdef
- warning("ambiguous port %s in /etc/services",
- name);
-#else
- ;
-#endif
- *proto = PROTO_UNDEF;
- }
- return 1;
- }
-#if defined(ultrix) || defined(__osf__)
- /* Special hack in case NFS isn't in /etc/services */
- if (strcmp(name, "nfs") == 0) {
- *port = 2049;
- *proto = PROTO_UNDEF;
- return 1;
- }
-#endif
- return 0;
-}
-
-int
-pcap_nametoproto(const char *str)
-{
- struct protoent *p;
-
- p = getprotobyname(str);
- if (p != 0)
- return p->p_proto;
- else
- return PROTO_UNDEF;
-}
-
-u_long
-__pcap_atoin(const char *s)
-{
- u_long addr = 0;
- u_int n;
-
- while (1) {
- n = 0;
- while (*s && *s != '.')
- n = n * 10 + *s++ - '0';
- addr <<= 8;
- addr |= n & 0xff;
- if (*s == '\0')
- return addr;
- ++s;
- }
- /* NOTREACHED */
-}
-
-struct pppproto {
- char *s;
- u_short p;
-};
-
-/* Static data base of PPP protocol types. */
-struct pppproto pppproto_db[] = {
- { "ip", PPP_IP },
- { (char *)0, 0 }
-};
-
-int
-pcap_nametopppproto(const char *s)
-{
- struct pppproto *p = pppproto_db;
-
- while (p->s != 0) {
- if (strcmp(p->s, s) == 0)
- return p->p;
- p += 1;
- }
- return PROTO_UNDEF;
-}