kuser/kcc.c

   1 /*
   2  * Copyright (c) 2010 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "kuser_locl.h"
  35 #include <sl.h>
  36 #include "kcc-commands.h"
  37
  38 krb5_context kcc_context;
  39 static int version_flag;
  40 static int help_flag;
  41
  42 static struct getargs args[] = {
  43     { "version",        0,   arg_flag, &version_flag },
  44     { "help",           0,   arg_flag, &help_flag }
  45 };
  46
  47 static void
  48 usage(int ret)
  49 {
  50     arg_printusage_i18n(args,
  51                         sizeof(args)/sizeof(*args),
  52                         N_("Usage: ", ""),
  53                         NULL,
  54                         "command ..",
  55                         getarg_i18n);
  56     exit (ret);
  57 }
  58
  59 int
  60 help(void *opt, int argc, char **argv)
  61 {
  62     sl_slc_help(commands, argc, argv);
  63     return 0;
  64 }
  65
  66 int
  67 kgetcred(struct kgetcred_options *opt, int argc, char **argv)
  68 {
  69     return 0;
  70 }
  71
  72 /*
  73  * Wrapper for command line compatiblity
  74  */
  75
  76 int
  77 kvno(struct kvno_options *opt, int argc, char **argv)
  78 {
  79     struct kgetcred_options k;
  80     memset(&k, 0, sizeof(k));
  81
  82     k.cache_string = opt->cache_string;
  83     k.enctype_string = opt->enctype_string;
  84
  85     return kgetcred(&k, argc, argv);
  86 }
  87
  88 static int
  89 command_alias(const char *name)
  90 {
  91     const char *aliases[] = {
  92         "kinit", "klist", "kswitch", "kgetcred", "kvno", "kdeltkt",
  93         "kdestroy", "kcpytkt", NULL
  94     }, **p = aliases;
  95
  96     while (*p && strcmp(name, *p) != 0)
  97         p++;
  98     return *p != NULL;
  99 }
 100
 101
 102 int
 103 main(int argc, char **argv)
 104 {
 105     krb5_error_code ret;
 106     int optidx = 0;
 107     int exit_status = 0;
 108
 109     setprogname (argv[0]);
 110
 111     setlocale (LC_ALL, "");
 112     bindtextdomain ("heimdal_kuser", HEIMDAL_LOCALEDIR);
 113     textdomain("heimdal_kuser");
 114
 115     ret = krb5_init_context(&kcc_context);
 116     if (ret == KRB5_CONFIG_BADFORMAT)
 117         errx (1, "krb5_init_context failed to parse configuration file");
 118     else if (ret)
 119         errx(1, "krb5_init_context failed: %d", ret);
 120
 121     /*
 122      * Support linking of kcc to commands
 123      */
 124
 125     if (!command_alias(getprogname())) {
 126
 127         if (argc == 1) {
 128             sl_slc_help(commands, 0, NULL);
 129             return 1;
 130         }
 131
 132         if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
 133             usage(1);
 134
 135         if (help_flag)
 136             usage (0);
 137
 138         if(version_flag) {
 139             print_version(NULL);
 140             exit(0);
 141         }
 142
 143     } else {
 144         argv[0] = rk_UNCONST(getprogname());
 145     }
 146
 147     argc -= optidx;
 148     argv += optidx;
 149
 150     if (argc != 0) {
 151         ret = sl_command(commands, argc, argv);
 152         if(ret == -1)
 153             krb5_warnx(kcc_context, "unrecognized command: %s", argv[0]);
 154         else if (ret == -2)
 155             ret = 0;
 156         if(ret != 0)
 157             exit_status = 1;
 158     } else {
 159         sl_slc_help(commands, argc, argv);
 160         exit_status = 1;
 161     }
 162
 163     krb5_free_context(kcc_context);
 164     return exit_status;
 165 }