usr/src/cmd/krb5/slave/utils.c

   1 /*
   2  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6 #pragma ident   "%Z%%M% %I%     %E% SMI"
   7
   8 #include <k5-int.h>
   9 #include <socket-utils.h>
  10 #include <inet/ip.h>
  11
  12 /*
  13  * convert a sockaddr_storage address to a krb5_address
  14  * Returns address of krbap if success, NULL if error.
  15  */
  16
  17 krb5_address *
  18 cvtkaddr(struct sockaddr_storage *ss, krb5_address *krbap)
  19 {
  20         switch (ss->ss_family) {
  21                 case AF_INET:
  22                         krbap->contents = (krb5_octet *)
  23                                     malloc(sizeof (ss2sin(ss)->sin_addr));
  24                         if (krbap->contents == NULL)
  25                                 return (NULL);
  26                         memcpy((char *)krbap->contents,
  27                                         (char *)&(ss2sin(ss)->sin_addr),
  28                                         sizeof (ss2sin(ss)->sin_addr));
  29                         krbap->addrtype = ADDRTYPE_INET;
  30                         krbap->length = sizeof (ss2sin(ss)->sin_addr);
  31                         return (krbap);
  32                 case AF_INET6:
  33                         if (IN6_IS_ADDR_V4MAPPED(&ss2sin6(ss)->sin6_addr)) {
  34                                 /* coerce to IPv4 address */
  35                                 krbap->contents = (krb5_octet *)
  36                                         malloc(IPV4_ADDR_LEN);
  37                                 if (krbap->contents == NULL)
  38                                         return (NULL);
  39                                 IN6_V4MAPPED_TO_IPADDR(
  40                                         &(ss2sin6(ss)->sin6_addr),
  41                                         *(ipaddr_t *)(krbap->contents));
  42                                 krbap->addrtype = ADDRTYPE_INET;
  43                                 krbap->length = IPV4_ADDR_LEN;
  44                         } else {
  45                                 krbap->contents = (krb5_octet *)
  46                                         malloc(sizeof (ss2sin6(ss)->sin6_addr));
  47                                 if (krbap->contents == NULL)
  48                                         return (NULL);
  49                                 memcpy((char *)krbap->contents,
  50                                         (char *)&ss2sin6(ss)->sin6_addr,
  51                                         sizeof (ss2sin6(ss)->sin6_addr));
  52                                 krbap->addrtype = ADDRTYPE_INET6;
  53                                 krbap->length = sizeof (ss2sin6(ss)->sin6_addr);
  54                         }
  55                         return (krbap);
  56                 default:
  57                         return (NULL);
  58         }
  59 }