1 /* 2 * lib/krb5/os/port2ip.c 3 * 4 * Copyright 1991 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 * Take an ADDRPORT address and split into IP addr & port. 28 */ 29 30 #include "k5-int.h" 31 32 #ifdef HAVE_NETINET_IN_H 33 #include "os-proto.h" 34 35 /*ARGSUSED*/ 36 krb5_error_code 37 krb5_unpack_full_ipaddr(krb5_context context, const krb5_address *inaddr, krb5_int32 *adr, krb5_int16 *port) 38 { 39 unsigned long smushaddr; 40 unsigned short smushport; 41 register krb5_octet *marshal; 42 krb5_addrtype temptype; 43 krb5_ui_4 templength; 44 45 if (inaddr->addrtype != ADDRTYPE_ADDRPORT) 46 return KRB5_PROG_ATYPE_NOSUPP; 47 48 if (inaddr->length != sizeof(smushaddr)+ sizeof(smushport) + 49 2*sizeof(temptype) + 2*sizeof(templength)) 50 return KRB5_PROG_ATYPE_NOSUPP; 51 52 marshal = inaddr->contents; 53 54 (void) memcpy((char *)&temptype, (char *)marshal, sizeof(temptype)); 55 marshal += sizeof(temptype); 56 if (temptype != htons(ADDRTYPE_INET)) 57 return KRB5_PROG_ATYPE_NOSUPP; 58 59 (void) memcpy((char *)&templength, (char *)marshal, sizeof(templength)); 60 marshal += sizeof(templength); 61 if (templength != htonl(sizeof(smushaddr))) 62 return KRB5_PROG_ATYPE_NOSUPP; 63 64 (void) memcpy((char *)&smushaddr, (char *)marshal, sizeof(smushaddr)); 65 /* leave in net order */ 66 marshal += sizeof(smushaddr); 67 68 (void) memcpy((char *)&temptype, (char *)marshal, sizeof(temptype)); 69 marshal += sizeof(temptype); 70 if (temptype != htons(ADDRTYPE_IPPORT)) 71 return KRB5_PROG_ATYPE_NOSUPP; 72 73 (void) memcpy((char *)&templength, (char *)marshal, sizeof(templength)); 74 marshal += sizeof(templength); 75 if (templength != htonl(sizeof(smushport))) 76 return KRB5_PROG_ATYPE_NOSUPP; 77 78 (void) memcpy((char *)&smushport, (char *)marshal, sizeof(smushport)); 79 /* leave in net order */ 80 81 *adr = (krb5_int32) smushaddr; 82 *port = (krb5_int16) smushport; 83 return 0; 84 } 85 #endif 86