src/aklog/krb_util.c

   1 /*
   2  * This file replaces some of the routines in the Kerberos utilities.
   3  * It is based on the Kerberos library modules:
   4  *      send_to_kdc.c
   5  *
   6  * Copyright 1987, 1988, 1992 by the Massachusetts Institute of Technology.
   7  *
   8  * For copying and distribution information, please see the file
   9  * <mit-copyright.h>.
  10  */
  11
  12 #include <afsconfig.h>
  13 #include <afs/stds.h>
  14
  15 #include <roken.h>
  16
  17 #define KERBEROS_APPLE_DEPRECATED(x)
  18 #include "aklog.h"
  19 #include <krb5.h>
  20
  21 #ifndef MAX_HSTNM
  22 #define MAX_HSTNM 100
  23 #endif
  24
  25 #include <afs/cellconfig.h>
  26
  27 #include <ctype.h>
  28
  29 #define S_AD_SZ sizeof(struct sockaddr_in)
  30
  31 char *afs_realm_of_cell(krb5_context context, struct afsconf_cell *cellconfig, int fallback)
  32 {
  33     static char krbrlm[REALM_SZ+1];
  34         char **hrealms = 0;
  35         krb5_error_code retval;
  36
  37     if (!cellconfig)
  38         return 0;
  39
  40     if (fallback) {
  41         char * p;
  42         p = strchr(cellconfig->hostName[0], '.');
  43         if (p++)
  44             strcpy(krbrlm, p);
  45         else
  46             strcpy(krbrlm, cellconfig->name);
  47         for (p=krbrlm; *p; p++) {
  48             if (islower(*p))
  49                 *p = toupper(*p);
  50         }
  51     } else {
  52         if ((retval = krb5_get_host_realm(context,
  53                                          cellconfig->hostName[0], &hrealms)))
  54             return 0;
  55         if(!hrealms[0]) return 0;
  56         strcpy(krbrlm, hrealms[0]);
  57
  58         if (hrealms) krb5_free_host_realm(context, hrealms);
  59     }
  60     return krbrlm;
  61 }