1 /* 2 * Copyright (c) 1997 - 2000, 2003 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 36 static const char *cache; 37 static const char *credential; 38 static int help_flag; 39 static int version_flag; 40 #ifndef NO_AFS 41 static int unlog_flag = 1; 42 #endif 43 static int dest_tkt_flag = 1; 44 static int all_flag = 0; 45 46 struct getargs args[] = { 47 { "credential", 0, arg_string, rk_UNCONST(&credential), 48 "remove one credential", "principal" }, 49 { "cache", 'c', arg_string, rk_UNCONST(&cache), "cache to destroy", "cache" }, 50 { "all", 'A', arg_flag, &all_flag, "destroy all caches", NULL }, 51 #ifndef NO_AFS 52 { "unlog", 0, arg_negative_flag, &unlog_flag, 53 "do not destroy tokens", NULL }, 54 #endif 55 { "delete-v4", 0, arg_negative_flag, &dest_tkt_flag, 56 "do not destroy v4 tickets", NULL }, 57 { "version", 0, arg_flag, &version_flag, NULL, NULL }, 58 { "help", 'h', arg_flag, &help_flag, NULL, NULL} 59 }; 60 61 int num_args = sizeof(args) / sizeof(args[0]); 62 63 static void 64 usage (int status) 65 { 66 arg_printusage (args, num_args, NULL, ""); 67 exit (status); 68 } 69 70 int 71 main (int argc, char **argv) 72 { 73 krb5_error_code ret; 74 krb5_context context; 75 krb5_ccache ccache; 76 int optidx = 0; 77 int exit_val = 0; 78 79 setprogname (argv[0]); 80 81 if(getarg(args, num_args, argc, argv, &optidx)) 82 usage(1); 83 84 if (help_flag) 85 usage (0); 86 87 if(version_flag){ 88 print_version(NULL); 89 exit(0); 90 } 91 92 argc -= optidx; 93 #ifndef __clang_analyzer__ 94 argv += optidx; 95 #endif 96 97 if (argc != 0) 98 usage (1); 99 100 ret = krb5_init_context (&context); 101 if (ret) 102 errx (1, "krb5_init_context failed: %d", ret); 103 104 if (all_flag) { 105 krb5_cccol_cursor cursor; 106 107 ret = krb5_cccol_cursor_new (context, &cursor); 108 if (ret) 109 krb5_err(context, 1, ret, "krb5_cccol_cursor_new"); 110 111 while (krb5_cccol_cursor_next (context, cursor, &ccache) == 0 && ccache != NULL) { 112 113 ret = krb5_cc_destroy (context, ccache); 114 if (ret) { 115 krb5_warn(context, ret, "krb5_cc_destroy"); 116 exit_val = 1; 117 } 118 } 119 krb5_cccol_cursor_free(context, &cursor); 120 121 } else { 122 if(cache == NULL) { 123 ret = krb5_cc_default(context, &ccache); 124 if (ret) 125 krb5_err(context, 1, ret, "krb5_cc_default"); 126 } else { 127 ret = krb5_cc_resolve(context, 128 cache, 129 &ccache); 130 if (ret) 131 krb5_err(context, 1, ret, "krb5_cc_resolve"); 132 } 133 134 if (ret == 0) { 135 if (credential) { 136 krb5_creds mcred; 137 138 krb5_cc_clear_mcred(&mcred); 139 140 ret = krb5_parse_name(context, credential, &mcred.server); 141 if (ret) 142 krb5_err(context, 1, ret, 143 "Can't parse principal %s", credential); 144 145 ret = krb5_cc_remove_cred(context, ccache, 0, &mcred); 146 if (ret) 147 krb5_err(context, 1, ret, 148 "Failed to remove principal %s", credential); 149 150 krb5_cc_close(context, ccache); 151 krb5_free_principal(context, mcred.server); 152 krb5_free_context(context); 153 return 0; 154 } 155 156 ret = krb5_cc_destroy (context, ccache); 157 if (ret) { 158 krb5_warn(context, ret, "krb5_cc_destroy"); 159 exit_val = 1; 160 } 161 } 162 } 163 164 krb5_free_context (context); 165 166 #ifndef NO_AFS 167 if (unlog_flag && k_hasafs ()) { 168 if (k_unlog ()) 169 exit_val = 1; 170 } 171 #endif 172 173 return exit_val; 174 } 175