1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License as published by 4 * the Free Software Foundation; either version 2 of the License, or 5 * (at your option) any later version. 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, write to the Free Software 14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 15 */ 16 17 /* All data returned by the network data base library are supplied in 18 host order and returned in network order (suitable for use in 19 system calls). */ 20 21 #ifndef _ETHERNETDB_H 22 #define _ETHERNETDB_H 1 23 24 #include <features.h> 25 #include <netinet/in.h> 26 #include <stdint.h> 27 28 /* Absolute file name for network data base files. */ 29 #ifndef _PATH_ETHERTYPES 30 #define _PATH_ETHERTYPES "/etc/ethertypes" 31 #endif /* _PATH_ETHERTYPES */ 32 33 struct ethertypeent { 34 char *e_name; /* Official ethernet type name. */ 35 char **e_aliases; /* Alias list. */ 36 int e_ethertype; /* Ethernet type number. */ 37 }; 38 39 /* Open ethertype data base files and mark them as staying open even 40 after a later search if STAY_OPEN is non-zero. */ 41 extern void setethertypeent(int __stay_open); 42 43 /* Close ethertype data base files and clear `stay open' flag. */ 44 extern void endethertypeent(void); 45 46 /* Get next entry from ethertype data base file. Open data base if 47 necessary. */ 48 extern struct ethertypeent *getethertypeent(void); 49 50 /* Return entry from ethertype data base for network with NAME. */ 51 extern struct ethertypeent *getethertypebyname(__const char *__name); 52 53 /* Return entry from ethertype data base which number is PROTO. */ 54 extern struct ethertypeent *getethertypebynumber(int __ethertype); 55 56 57 #endif /* ethernetdb.h */ 58