crypto/external/bsd/heimdal/dist/kuser/kdeltkt.c

   1 /*      $NetBSD: kdeltkt.c,v 1.1.1.2 2014/04/24 12:45:28 pettai Exp $   */
   2
   3
   4 #include "kuser_locl.h"
   5
   6 static char *etypestr = 0;
   7 static char *ccachestr = 0;
   8 static char *flagstr = 0;
   9 static int   quiet_flag = 0;
  10 static int   help_flag = 0;
  11 static int   version_flag = 0;
  12
  13 struct getargs args[] = {
  14     { "cache",  'c', arg_string, &ccachestr,
  15       "Credentials cache", "cachename" },
  16     { "enctype", 'e', arg_string, &etypestr,
  17       "Encryption type", "enctype" },
  18     { "flags", 'f', arg_string, &flagstr,
  19       "Flags", "flags" },
  20     { "quiet", 'q', arg_flag, &quiet_flag, "Quiet" },
  21     { "version",        0, arg_flag, &version_flag },
  22     { "help",           0, arg_flag, &help_flag }
  23 };
  24
  25 static void
  26 usage(int ret)
  27 {
  28     arg_printusage(args, sizeof(args)/sizeof(args[0]),
  29                    "Usage: ", "service1 [service2 ...]");
  30     exit(ret);
  31 }
  32
  33 static void do_kdeltkt (int argc, char *argv[], char *ccachestr, char *etypestr, int flags);
  34
  35 int main(int argc, char *argv[])
  36 {
  37     int optidx = 0;
  38     int flags = 0;
  39
  40     setprogname(argv[0]);
  41
  42     if (getarg(args, sizeof(args)/sizeof(args[0]), argc, argv, &optidx))
  43         usage (1);
  44
  45     if (help_flag)
  46         usage(0);
  47
  48     if (version_flag) {
  49         print_version(NULL);
  50         exit(0);
  51     }
  52
  53     argc -= optidx;
  54     argv += optidx;
  55
  56     if (argc < 1)
  57         usage (1);
  58
  59     if (flagstr)
  60         flags = atoi(flagstr);
  61
  62     do_kdeltkt(argc, argv, ccachestr, etypestr, flags);
  63
  64     return 0;
  65 }
  66
  67 static void do_kdeltkt (int count, char *names[],
  68                         char *ccachestr, char *etypestr, int flags)
  69 {
  70     krb5_context context;
  71     krb5_error_code ret;
  72     int i, errors;
  73     krb5_enctype etype;
  74     krb5_ccache ccache;
  75     krb5_principal me;
  76     krb5_creds in_creds, out_creds;
  77     int retflags;
  78     char *princ;
  79
  80     ret = krb5_init_context(&context);
  81     if (ret)
  82         errx(1, "krb5_init_context failed: %d", ret);
  83
  84     if (etypestr) {
  85         ret = krb5_string_to_enctype(context, etypestr, &etype);
  86         if (ret)
  87             krb5_err(context, 1, ret, "Can't convert enctype %s", etypestr);
  88         retflags = KRB5_TC_MATCH_SRV_NAMEONLY | KRB5_TC_MATCH_KEYTYPE;
  89     } else {
  90         etype = 0;
  91         retflags = KRB5_TC_MATCH_SRV_NAMEONLY;
  92     }
  93
  94     if (ccachestr)
  95         ret = krb5_cc_resolve(context, ccachestr, &ccache);
  96     else
  97         ret = krb5_cc_default(context, &ccache);
  98     if (ret)
  99         krb5_err(context, 1, ret, "Can't open credentials cache");
 100
 101     ret = krb5_cc_get_principal(context, ccache, &me);
 102     if (ret)
 103         krb5_err(context, 1, ret, "Can't get client principal");
 104
 105     errors = 0;
 106
 107     for (i = 0; i < count; i++) {
 108         memset(&in_creds, 0, sizeof(in_creds));
 109
 110         in_creds.client = me;
 111
 112         ret = krb5_parse_name(context, names[i], &in_creds.server);
 113         if (ret) {
 114             if (!quiet_flag)
 115                 krb5_warn(context, ret, "Can't parse principal name %s", names[i]);
 116             errors++;
 117             continue;
 118         }
 119
 120         ret = krb5_unparse_name(context, in_creds.server, &princ);
 121         if (ret) {
 122             krb5_warn(context, ret, "Can't unparse principal name %s", names[i]);
 123             errors++;
 124             continue;
 125         }
 126
 127         in_creds.session.keytype = etype;
 128
 129         ret = krb5_cc_retrieve_cred(context, ccache, retflags,
 130                                     &in_creds, &out_creds);
 131         if (ret) {
 132             krb5_warn(context, ret, "Can't retrieve credentials for %s", princ);
 133
 134             krb5_free_unparsed_name(context, princ);
 135
 136             errors++;
 137             continue;
 138         }
 139
 140         ret = krb5_cc_remove_cred(context, ccache, flags, &out_creds);
 141
 142         krb5_free_principal(context, in_creds.server);
 143
 144         if (ret) {
 145             krb5_warn(context, ret, "Can't remove credentials for %s", princ);
 146
 147             krb5_free_cred_contents(context, &out_creds);
 148             krb5_free_unparsed_name(context, princ);
 149
 150             errors++;
 151             continue;
 152         }
 153
 154         krb5_free_unparsed_name(context, princ);
 155         krb5_free_cred_contents(context, &out_creds);
 156     }
 157
 158     krb5_free_principal(context, me);
 159     krb5_cc_close(context, ccache);
 160     krb5_free_context(context);
 161
 162     if (errors)
 163         exit(1);
 164
 165     exit(0);
 166 }