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 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