1 /*
2 * lib/krb5/krb/addr_comp.c
3 *
4 * Copyright 1990 by the Massachusetts Institute of Technology.
5 * All Rights Reserved.
6 *
7 * Export of this software from the United States of America may
8 * require a specific license from the United States Government.
9 * It is the responsibility of any person or organization contemplating
10 * export to obtain such a license before exporting.
11 *
12 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
13 * distribute this software and its documentation for any purpose and
14 * without fee is hereby granted, provided that the above copyright
15 * notice appear in all copies and that both that copyright notice and
16 * this permission notice appear in supporting documentation, and that
17 * the name of M.I.T. not be used in advertising or publicity pertaining
18 * to distribution of the software without specific, written prior
19 * permission. Furthermore if you modify this software you must label
20 * your software as modified software and not distribute it in such a
21 * fashion that it might be confused with the original M.I.T. software.
22 * M.I.T. makes no representations about the suitability of
23 * this software for any purpose. It is provided "as is" without express
24 * or implied warranty.
25 *
26 *
27 * krb5_address_compare()
28 */
29
30 #include <k5-int.h>
31
32 #ifdef KRB5_DEBUG
33 #include <sys/types.h>
34 #include <sys/socket.h>
35 #include <netinet/in.h>
36 #include <arpa/inet.h>
37 #endif
38
39 /*
40 * If the two addresses are the same, return TRUE, else return FALSE
41 */
42 /*ARGSUSED*/
43 krb5_boolean KRB5_CALLCONV
krb5_address_compare(krb5_context context,krb5_const krb5_address * addr1,krb5_const krb5_address * addr2)44 krb5_address_compare(krb5_context context, krb5_const krb5_address *addr1,
45 krb5_const krb5_address *addr2)
46 {
47 KRB5_LOG0(KRB5_INFO, "krb5_address_compare() start");
48
49 #ifdef KRB5_DEBUG
50 {
51 char buf[256];
52 sa_family_t addr_fam;
53
54 switch (addr1->addrtype) {
55 case ADDRTYPE_INET:
56 addr_fam = AF_INET;
57 break;
58 case ADDRTYPE_INET6:
59 addr_fam = AF_INET6;
60 break;
61 }
62 inet_ntop(addr_fam, addr1->contents, buf, sizeof(buf));
63 KRB5_LOG(KRB5_INFO, "krb5_address_compare() addr1=%s", buf);
64 KRB5_LOG(KRB5_INFO, "krb5_address_compare() addr1 type=%d",
65 addr1->addrtype);
66 KRB5_LOG(KRB5_INFO, "krb5_address_compare() addr1 length=%d",
67 addr1->length);
68
69 switch (addr2->addrtype) {
70 case ADDRTYPE_INET:
71 addr_fam = AF_INET;
72 break;
73 case ADDRTYPE_INET6:
74 addr_fam = AF_INET6;
75 break;
76 }
77 inet_ntop(addr_fam, addr2->contents, buf, sizeof(buf));
78 KRB5_LOG(KRB5_INFO, "krb5_address_compare() addr2=%s", buf);
79 KRB5_LOG(KRB5_INFO, "krb5_address_compare() addr2 type=%d",
80 addr2->addrtype);
81 KRB5_LOG(KRB5_INFO, "krb5_address_compare() addr2 length=%d",
82 addr2->length);
83 }
84 #endif /* KRB5_DEBUG */
85
86 if (addr1->addrtype != addr2->addrtype){
87 KRB5_LOG0(KRB5_INFO, "krb5_address_compare() end FALSE"
88 " (addrtype mismatch)");
89 return(FALSE);
90 }
91
92 if (addr1->length != addr2->length){
93 KRB5_LOG0(KRB5_INFO, "krb5_address_compare() end FALSE"
94 " (length mismatch)");
95 return(FALSE);
96 }
97 if (memcmp((char *)addr1->contents, (char *)addr2->contents,
98 addr1->length)){
99 KRB5_LOG0(KRB5_INFO, "krb5_address_compare() end FALSE"
100 " (contents mismatch)");
101 return FALSE;
102 }
103 else {
104 KRB5_LOG0(KRB5_INFO, "krb5_address_compare() end TRUE");
105 return TRUE;
106 }
107 }
108