diff options
Diffstat (limited to 'crypto/kerberosIV/lib/krb/krb_equiv.c')
| -rw-r--r-- | crypto/kerberosIV/lib/krb/krb_equiv.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/crypto/kerberosIV/lib/krb/krb_equiv.c b/crypto/kerberosIV/lib/krb/krb_equiv.c deleted file mode 100644 index 271d422..0000000 --- a/crypto/kerberosIV/lib/krb/krb_equiv.c +++ /dev/null @@ -1,140 +0,0 @@ -/* - * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * 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. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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. - */ - -/* - * int krb_equiv(u_int32_t ipaddr_a, u_int32_t ipaddr_b); - * - * Given two IP adresses return true if they match - * or are considered to belong to the same host. - * - * For example if /etc/krb.equiv looks like - * - * 130.237.223.3 192.16.126.3 # alv alv1 - * 130.237.223.4 192.16.126.4 # byse byse1 - * 130.237.228.152 192.16.126.9 # topsy topsy1 - * - * krb_equiv(alv, alv1) would return true but - * krb_equiv(alv, byse1) would not. - * - * A comment starts with an '#' and ends with '\n'. - * - */ -#include "krb_locl.h" - -RCSID("$Id: krb_equiv.c,v 1.15 1999/12/02 16:58:42 joda Exp $"); - -int krb_ignore_ip_address = 0; - -int -krb_equiv(u_int32_t a, u_int32_t b) -{ - FILE *fil; - char line[256]; - int hit_a, hit_b; - int iscomment; - - if (a == b) /* trivial match, also the common case */ - return 1; - - if (krb_ignore_ip_address) - return 1; /* if we have decided not to compare */ - - a = ntohl(a); - b = ntohl(b); - - fil = fopen(KRB_EQUIV, "r"); - if (fil == NULL) /* open failed */ - return 0; - - hit_a = hit_b = 0; - iscomment = 0; - while (fgets(line, sizeof(line)-1, fil) != NULL) /* for each line */ - { - char *t = line; - int len = strlen(t); - - /* for each item on this line */ - while (*t != 0) /* more addresses on this line? */ - if (*t == '\n') { - iscomment = hit_a = hit_b = 0; - break; - } else if (iscomment) - t = line + len - 1; - else if (*t == '#') { /* rest is comment */ - iscomment = 1; - ++t; - } else if (*t == '\\' ) /* continuation */ - break; - else if (isspace((unsigned char)*t)) /* skip space */ - t++; - else if (isdigit((unsigned char)*t)) /* an address? */ - { - u_int32_t tmp; - u_int32_t tmpa, tmpb, tmpc, tmpd; - - sscanf(t, "%d.%d.%d.%d", &tmpa, &tmpb, &tmpc, &tmpd); - tmp = (tmpa << 24) | (tmpb << 16) | (tmpc << 8) | tmpd; - - /* done with this address */ - while (*t == '.' || isdigit((unsigned char)*t)) - t++; - - if (tmp != -1) { /* an address (and not broadcast) */ - u_int32_t mask = (u_int32_t)~0; - - if (*t == '/') { - ++t; - mask <<= 32 - atoi(t); - - while(isdigit((unsigned char)*t)) - ++t; - } - - if ((tmp & mask) == (a & mask)) - hit_a = 1; - if ((tmp & mask) == (b & mask)) - hit_b = 1; - if (hit_a && hit_b) { - fclose(fil); - return 1; - } - } - } - else - ++t; /* garbage on this line, skip it */ - - } - - fclose(fil); - return 0; -} |
