1 /* 2 * Copyright (c) 1997-2004 Kungliga Tekniska H�gskolan 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 "ktutil_locl.h" 35 #include <err.h> 36 37 RCSID("$Id: ktutil.c 15585 2005-07-07 21:52:04Z lha $"); 38 39 static int help_flag; 40 static int version_flag; 41 int verbose_flag; 42 char *keytab_string; 43 static char keytab_buf[256]; 44 45 static struct getargs args[] = { 46 { 47 "version", 48 0, 49 arg_flag, 50 &version_flag, 51 NULL, 52 NULL 53 }, 54 { 55 "help", 56 'h', 57 arg_flag, 58 &help_flag, 59 NULL, 60 NULL 61 }, 62 { 63 "keytab", 64 'k', 65 arg_string, 66 &keytab_string, 67 "keytab", 68 "keytab to operate on" 69 }, 70 { 71 "verbose", 72 'v', 73 arg_flag, 74 &verbose_flag, 75 "verbose", 76 "run verbosely" 77 } 78 }; 79 80 static int num_args = sizeof(args) / sizeof(args[0]); 81 82 krb5_context context; 83 84 krb5_keytab 85 ktutil_open_keytab(void) 86 { 87 krb5_error_code ret; 88 krb5_keytab keytab; 89 if (keytab_string == NULL) { 90 ret = krb5_kt_default_name (context, keytab_buf, sizeof(keytab_buf)); 91 if (ret) { 92 krb5_warn(context, ret, "krb5_kt_default_name"); 93 return NULL; 94 } 95 keytab_string = keytab_buf; 96 } 97 ret = krb5_kt_resolve(context, keytab_string, &keytab); 98 if (ret) { 99 krb5_warn(context, ret, "resolving keytab %s", keytab_string); 100 return NULL; 101 } 102 if (verbose_flag) 103 fprintf (stderr, "Using keytab %s\n", keytab_string); 104 105 return keytab; 106 } 107 108 int 109 help(void *opt, int argc, char **argv) 110 { 111 if(argc == 0) { 112 sl_help(commands, 1, argv - 1 /* XXX */); 113 } else { 114 SL_cmd *c = sl_match (commands, argv[0], 0); 115 if(c == NULL) { 116 fprintf (stderr, "No such command: %s. " 117 "Try \"help\" for a list of commands\n", 118 argv[0]); 119 } else { 120 if(c->func) { 121 char *fake[] = { NULL, "--help", NULL }; 122 fake[0] = argv[0]; 123 (*c->func)(2, fake); 124 fprintf(stderr, "\n"); 125 } 126 if(c->help && *c->help) 127 fprintf (stderr, "%s\n", c->help); 128 if((++c)->name && c->func == NULL) { 129 int f = 0; 130 fprintf (stderr, "Synonyms:"); 131 while (c->name && c->func == NULL) { 132 fprintf (stderr, "%s%s", f ? ", " : " ", (c++)->name); 133 f = 1; 134 } 135 fprintf (stderr, "\n"); 136 } 137 } 138 } 139 return 0; 140 } 141 142 static void 143 usage(int status) 144 { 145 arg_printusage(args, num_args, NULL, "command"); 146 exit(status); 147 } 148 149 int 150 main(int argc, char **argv) 151 { 152 int optidx = 0; 153 krb5_error_code ret; 154 setprogname(argv[0]); 155 ret = krb5_init_context(&context); 156 if (ret) 157 errx (1, "krb5_init_context failed: %d", ret); 158 if(getarg(args, num_args, argc, argv, &optidx)) 159 usage(1); 160 if(help_flag) 161 usage(0); 162 if(version_flag) { 163 print_version(NULL); 164 exit(0); 165 } 166 argc -= optidx; 167 argv += optidx; 168 if(argc == 0) 169 usage(1); 170 ret = sl_command(commands, argc, argv); 171 if(ret == -1) 172 krb5_warnx (context, "unrecognized command: %s", argv[0]); 173 return ret; 174 } 175