package/libnl-tiny/src/include/linux

/*
* getethertype.c
*
* This file was part of the NYS Library.
*
** The NYS Library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Library General Public License as
** published by the Free Software Foundation; either version 2 of the
** License, or (at your option) any later version.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

/********************************************************************
* Description: Ethertype name service switch and the ethertypes
* database access functions
* Author: Nick Fedchik <fnm@ukrsat.com>
* Checker: Bart De Schuymer <bdschuym@pandora.be>
* Origin: uClibc-0.9.16/libc/inet/getproto.c
* Created at: Mon Nov 11 12:20:11 EET 2002
********************************************************************/


#include <ctype.h>
#include <features.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netinet/ether.h>
#include <net/ethernet.h>

#include "ethernetdb.h"

#define        MAXALIASES      35

static FILE *etherf = NULL;
static char line[BUFSIZ + 1];
static struct ethertypeent et_ent;
static char *ethertype_aliases[MAXALIASES];
static int ethertype_stayopen;

void setethertypeent(int f)
{
       if (etherf == NULL)
               etherf = fopen(_PATH_ETHERTYPES, "r");
       else
               rewind(etherf);
       ethertype_stayopen |= f;
}

void endethertypeent(void)
{
       if (etherf) {
               fclose(etherf);
               etherf = NULL;
       }
       ethertype_stayopen = 0;
}

struct ethertypeent *getethertypeent(void)
{
       char *e;
       char *endptr;
       register char *cp, **q;

       if (etherf == NULL
           && (etherf = fopen(_PATH_ETHERTYPES, "r")) == NULL) {
               return (NULL);
       }

again:
       if ((e = fgets(line, BUFSIZ, etherf)) == NULL) {
               return (NULL);
       }
       if (*e == '#')
               goto again;
       cp = strpbrk(e, "#\n");
       if (cp == NULL)
               goto again;
       *cp = '\0';
       et_ent.e_name = e;
       cp = strpbrk(e, " \t");
       if (cp == NULL)
               goto again;
       *cp++ = '\0';
       while (*cp == ' ' || *cp == '\t')
               cp++;
       e = strpbrk(cp, " \t");
       if (e != NULL)
               *e++ = '\0';
// Check point
       et_ent.e_ethertype = strtol(cp, &endptr, 16);
       if (*endptr != '\0'
           || (et_ent.e_ethertype < ETH_ZLEN
               || et_ent.e_ethertype > 0xFFFF))
               goto again;     // Skip invalid etherproto type entry
       q = et_ent.e_aliases = ethertype_aliases;
       if (e != NULL) {
               cp = e;
               while (cp && *cp) {
                       if (*cp == ' ' || *cp == '\t') {
                               cp++;
                               continue;
                       }
                       if (q < &ethertype_aliases[MAXALIASES - 1])
                               *q++ = cp;
                       cp = strpbrk(cp, " \t");
                       if (cp != NULL)
                               *cp++ = '\0';
               }
       }
       *q = NULL;
       return (&et_ent);
}


struct ethertypeent *getethertypebyname(const char *name)
{
       register struct ethertypeent *e;
       register char **cp;

       setethertypeent(ethertype_stayopen);
       while ((e = getethertypeent()) != NULL) {
               if (strcasecmp(e->e_name, name) == 0)
                       break;
               for (cp = e->e_aliases; *cp != 0; cp++)
                       if (strcasecmp(*cp, name) == 0)
                               goto found;
       }
found:
       if (!ethertype_stayopen)
               endethertypeent();
       return (e);
}

struct ethertypeent *getethertypebynumber(int type)
{
       register struct ethertypeent *e;

       setethertypeent(ethertype_stayopen);
       while ((e = getethertypeent()) != NULL)
               if (e->e_ethertype == type)
                       break;
       if (!ethertype_stayopen)
               endethertypeent();
       return (e);
}
Mode	Name	Size
-rw-r--r--	gen_stats.h	1213	log stats plain
-rw-r--r--	genetlink.h	1682	log stats plain
-rw-r--r--	if.h	4914	log stats plain
-rw-r--r--	if_addr.h	1427	log stats plain
-rw-r--r--	netlink.h	4779	log stats plain