diff options
Diffstat (limited to 'lib/libc/net/ether_addr.c')
| -rw-r--r-- | lib/libc/net/ether_addr.c | 230 |
1 files changed, 0 insertions, 230 deletions
diff --git a/lib/libc/net/ether_addr.c b/lib/libc/net/ether_addr.c deleted file mode 100644 index d769f27..0000000 --- a/lib/libc/net/ether_addr.c +++ /dev/null @@ -1,230 +0,0 @@ -/* - * Copyright (c) 1995 Bill Paul <wpaul@ctr.columbia.edu>. - * Copyright (c) 2007 Robert N. M. Watson - * 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 - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.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 - -#include <paths.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#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(const 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_r(const char *a, struct ether_addr *e) -{ - int i; - 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); - e->octet[0]=o0; - e->octet[1]=o1; - e->octet[2]=o2; - e->octet[3]=o3; - e->octet[4]=o4; - e->octet[5]=o5; - return (e); -} - -struct ether_addr * -ether_aton(const char *a) -{ - static struct ether_addr e; - - return (ether_aton_r(a, &e)); -} - -/* - * Convert a binary representation of an ethernet address to an ASCII string. - */ -char * -ether_ntoa_r(const struct ether_addr *n, char *a) -{ - int i; - - i = sprintf(a, "%02x:%02x:%02x:%02x:%02x:%02x", n->octet[0], - n->octet[1], n->octet[2], n->octet[3], n->octet[4], n->octet[5]); - if (i < 17) - return (NULL); - return (a); -} - -char * -ether_ntoa(const struct ether_addr *n) -{ - static char a[18]; - - return (ether_ntoa_r(n, a)); -} - -/* - * Map an ethernet address to a hostname. Use either /etc/ethers or NIS/YP. - */ -int -ether_ntohost(char *hostname, const 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(const 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); -} |
