diff options
Diffstat (limited to 'c/src/exec/libnetworking/libc/ether_addr.c')
| -rw-r--r-- | c/src/exec/libnetworking/libc/ether_addr.c | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/c/src/exec/libnetworking/libc/ether_addr.c b/c/src/exec/libnetworking/libc/ether_addr.c deleted file mode 100644 index 9b7a9abf44..0000000000 --- a/c/src/exec/libnetworking/libc/ether_addr.c +++ /dev/null @@ -1,226 +0,0 @@ -/* - * Copyright (c) 1995 - * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Bill Paul. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * ethernet address conversion and lookup routines - * - * Written by Bill Paul <wpaul@ctr.columbia.edu> - * Center for Telecommunications Research - * Columbia University, New York City - * - * $Id$ - */ - - -#include <stdio.h> -#include <paths.h> -#include <sys/types.h> -#include <string.h> -#include <stdlib.h> -#include <sys/param.h> -#include <sys/socket.h> -#include <net/ethernet.h> -#ifdef YP -#include <rpc/rpc.h> -#include <rpcsvc/yp_prot.h> -#include <rpcsvc/ypclnt.h> -#endif - -#ifndef _PATH_ETHERS -#define _PATH_ETHERS "/etc/ethers" -#endif - -/* - * Parse a string of text containing an ethernet address and hostname - * and separate it into its component parts. - */ -int ether_line(l, e, hostname) - char *l; - struct ether_addr *e; - char *hostname; -{ - int i, o[6]; - - i = sscanf(l, "%x:%x:%x:%x:%x:%x %s", &o[0], &o[1], &o[2], - &o[3], &o[4], &o[5], - hostname); - if (i != 7) - return (i); - - for (i=0; i<6; i++) - e->octet[i] = o[i]; - return (0); -} - -/* - * Convert an ASCII representation of an ethernet address to - * binary form. - */ -struct ether_addr *ether_aton(a) - char *a; -{ - int i; - static struct ether_addr o; - unsigned int o0, o1, o2, o3, o4, o5; - - i = sscanf(a, "%x:%x:%x:%x:%x:%x", &o0, &o1, &o2, &o3, &o4, &o5); - - if (i != 6) - return (NULL); - - o.octet[0]=o0; - o.octet[1]=o1; - o.octet[2]=o2; - o.octet[3]=o3; - o.octet[4]=o4; - o.octet[5]=o5; - - return ((struct ether_addr *)&o); -} - -/* - * Convert a binary representation of an ethernet address to - * an ASCII string. - */ -char *ether_ntoa(n) - struct ether_addr *n; -{ - int i; - static char a[18]; - - i = sprintf(a,"%x:%x:%x:%x:%x:%x",n->octet[0],n->octet[1],n->octet[2], - n->octet[3],n->octet[4],n->octet[5]); - if (i < 11) - return (NULL); - return ((char *)&a); -} - -/* - * Map an ethernet address to a hostname. Use either /etc/ethers or - * NIS/YP. - */ - -int ether_ntohost(hostname, e) - char *hostname; - struct ether_addr *e; -{ - FILE *fp; - char buf[BUFSIZ + 2]; - struct ether_addr local_ether; - char local_host[MAXHOSTNAMELEN]; -#ifdef YP - char *result; - int resultlen; - char *ether_a; - char *yp_domain; -#endif - if ((fp = fopen(_PATH_ETHERS, "r")) == NULL) - return (1); - - while (fgets(buf,BUFSIZ,fp)) { - if (buf[0] == '#') - continue; -#ifdef YP - if (buf[0] == '+') { - if (yp_get_default_domain(&yp_domain)) - continue; - ether_a = ether_ntoa(e); - if (yp_match(yp_domain, "ethers.byaddr", ether_a, - strlen(ether_a), &result, &resultlen)) { - continue; - } - strncpy(buf, result, resultlen); - buf[resultlen] = '\0'; - free(result); - } -#endif - if (!ether_line(buf, &local_ether, local_host)) { - if (!bcmp((char *)&local_ether.octet[0], - (char *)&e->octet[0], 6)) { - /* We have a match */ - strcpy(hostname, local_host); - fclose(fp); - return(0); - } - } - } - fclose(fp); - return (1); -} - -/* - * Map a hostname to an ethernet address using /etc/ethers or - * NIS/YP. - */ -int ether_hostton(hostname, e) - char *hostname; - struct ether_addr *e; -{ - FILE *fp; - char buf[BUFSIZ + 2]; - struct ether_addr local_ether; - char local_host[MAXHOSTNAMELEN]; -#ifdef YP - char *result; - int resultlen; - char *yp_domain; -#endif - if ((fp = fopen(_PATH_ETHERS, "r")) == NULL) - return (1); - - while (fgets(buf,BUFSIZ,fp)) { - if (buf[0] == '#') - continue; -#ifdef YP - if (buf[0] == '+') { - if (yp_get_default_domain(&yp_domain)) - continue; - if (yp_match(yp_domain, "ethers.byname", hostname, - strlen(hostname), &result, &resultlen)) { - continue; - } - strncpy(buf, result, resultlen); - buf[resultlen] = '\0'; - free(result); - } -#endif - if (!ether_line(buf, &local_ether, local_host)) { - if (!strcmp(hostname, local_host)) { - /* We have a match */ - bcopy((char *)&local_ether.octet[0], - (char *)&e->octet[0], 6); - fclose(fp); - return(0); - } - } - } - fclose(fp); - return (1); -} |