4 * This file was part of the NYS Library.
6 ** The NYS Library is free software; you can redistribute it and/or
7 ** modify it under the terms of the GNU Library General Public License as
8 ** published by the Free Software Foundation; either version 2 of the
9 ** License, or (at your option) any later version.
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 /********************************************************************
27 * Description: Ethertype name service switch and the ethertypes
28 * database access functions
29 * Author: Nick Fedchik <fnm@ukrsat.com>
30 * Checker: Bart De Schuymer <bdschuym@pandora.be>
31 * Origin: uClibc-0.9.16/libc/inet/getproto.c
32 * Created at: Mon Nov 11 12:20:11 EET 2002
33 ********************************************************************/
37 #include <sys/types.h>
38 #include <sys/socket.h>
43 #include <netinet/ether.h>
44 #include <net/ethernet.h>
46 #include "ethernetdb.h"
50 static FILE *etherf = NULL;
51 static char line[BUFSIZ + 1];
52 static struct ethertypeent et_ent;
53 static char *ethertype_aliases[MAXALIASES];
54 static int ethertype_stayopen;
56 void setethertypeent(int f)
59 etherf = fopen(_PATH_ETHERTYPES, "r");
62 ethertype_stayopen |= f;
65 void endethertypeent(void)
71 ethertype_stayopen = 0;
74 struct ethertypeent *getethertypeent(void)
78 register char *cp, **q;
81 && (etherf = fopen(_PATH_ETHERTYPES, "r")) == NULL) {
86 if ((e = fgets(line, BUFSIZ, etherf)) == NULL) {
91 cp = strpbrk(e, "#\n");
96 cp = strpbrk(e, " \t");
100 while (*cp == ' ' || *cp == '\t')
102 e = strpbrk(cp, " \t");
106 et_ent.e_ethertype = strtol(cp, &endptr, 16);
108 || (et_ent.e_ethertype < ETH_ZLEN
109 || et_ent.e_ethertype > 0xFFFF))
110 goto again; // Skip invalid etherproto type entry
111 q = et_ent.e_aliases = ethertype_aliases;
115 if (*cp == ' ' || *cp == '\t') {
119 if (q < ðertype_aliases[MAXALIASES - 1])
121 cp = strpbrk(cp, " \t");
131 struct ethertypeent *getethertypebyname(const char *name)
133 register struct ethertypeent *e;
136 setethertypeent(ethertype_stayopen);
137 while ((e = getethertypeent()) != NULL) {
138 if (strcasecmp(e->e_name, name) == 0)
140 for (cp = e->e_aliases; *cp != 0; cp++)
141 if (strcasecmp(*cp, name) == 0)
145 if (!ethertype_stayopen)
150 struct ethertypeent *getethertypebynumber(int type)
152 register struct ethertypeent *e;
154 setethertypeent(ethertype_stayopen);
155 while ((e = getethertypeent()) != NULL)
156 if (e->e_ethertype == type)
158 if (!ethertype_stayopen)