1 /* $NetBSD: kdestroy.c,v 1.3 2023/06/19 21:41:42 christos Exp $ */
2
3 /*
4 * Copyright (c) 1997 - 2000, 2003 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "kuser_locl.h"
37
38 static const char *cache;
39 static const char *credential;
40 static int help_flag;
41 static int version_flag;
42 #ifndef NO_AFS
43 static int unlog_flag = 1;
44 #endif
45 static int dest_tkt_flag = 1;
46 static int all_flag = 0;
47
48 struct getargs args[] = {
49 { "credential", 0, arg_string, rk_UNCONST(&credential),
50 "remove one credential", "principal" },
51 { "cache", 'c', arg_string, rk_UNCONST(&cache), "cache to destroy", "cache" },
52 { "all", 'A', arg_flag, &all_flag, "destroy all caches", NULL },
53 #ifndef NO_AFS
54 { "unlog", 0, arg_negative_flag, &unlog_flag,
55 "do not destroy tokens", NULL },
56 #endif
57 { "delete-v4", 0, arg_negative_flag, &dest_tkt_flag,
58 "do not destroy v4 tickets", NULL },
59 { "version", 0, arg_flag, &version_flag, NULL, NULL },
60 { "help", 'h', arg_flag, &help_flag, NULL, NULL}
61 };
62
63 int num_args = sizeof(args) / sizeof(args[0]);
64
65 static void
usage(int status)66 usage (int status)
67 {
68 arg_printusage (args, num_args, NULL, "");
69 exit (status);
70 }
71
72 int
main(int argc,char ** argv)73 main (int argc, char **argv)
74 {
75 krb5_error_code ret;
76 krb5_context context;
77 krb5_ccache ccache;
78 int optidx = 0;
79 int exit_val = 0;
80
81 setprogname (argv[0]);
82
83 if(getarg(args, num_args, argc, argv, &optidx))
84 usage(1);
85
86 if (help_flag)
87 usage (0);
88
89 if(version_flag){
90 print_version(NULL);
91 exit(0);
92 }
93
94 argc -= optidx;
95 #ifndef __clang_analyzer__
96 argv += optidx;
97 #endif
98
99 if (argc != 0)
100 usage (1);
101
102 ret = krb5_init_context (&context);
103 if (ret)
104 errx (1, "krb5_init_context failed: %d", ret);
105
106 if (all_flag) {
107 krb5_cccol_cursor cursor;
108
109 ret = krb5_cccol_cursor_new (context, &cursor);
110 if (ret)
111 krb5_err(context, 1, ret, "krb5_cccol_cursor_new");
112
113 while (krb5_cccol_cursor_next (context, cursor, &ccache) == 0 && ccache != NULL) {
114
115 ret = krb5_cc_destroy (context, ccache);
116 if (ret) {
117 krb5_warn(context, ret, "krb5_cc_destroy");
118 exit_val = 1;
119 }
120 }
121 krb5_cccol_cursor_free(context, &cursor);
122
123 } else {
124 if(cache == NULL) {
125 ret = krb5_cc_default(context, &ccache);
126 if (ret)
127 krb5_err(context, 1, ret, "krb5_cc_default");
128 } else {
129 ret = krb5_cc_resolve(context,
130 cache,
131 &ccache);
132 if (ret)
133 krb5_err(context, 1, ret, "krb5_cc_resolve");
134 }
135
136 if (ret == 0) {
137 if (credential) {
138 krb5_creds mcred;
139
140 krb5_cc_clear_mcred(&mcred);
141
142 ret = krb5_parse_name(context, credential, &mcred.server);
143 if (ret)
144 krb5_err(context, 1, ret,
145 "Can't parse principal %s", credential);
146
147 ret = krb5_cc_remove_cred(context, ccache, 0, &mcred);
148 if (ret)
149 krb5_err(context, 1, ret,
150 "Failed to remove principal %s", credential);
151
152 krb5_cc_close(context, ccache);
153 krb5_free_principal(context, mcred.server);
154 krb5_free_context(context);
155 return 0;
156 }
157
158 ret = krb5_cc_destroy (context, ccache);
159 if (ret) {
160 krb5_warn(context, ret, "krb5_cc_destroy");
161 exit_val = 1;
162 }
163 }
164 }
165
166 krb5_free_context (context);
167
168 #ifndef NO_AFS
169 if (unlog_flag && k_hasafs ()) {
170 if (k_unlog ())
171 exit_val = 1;
172 }
173 #endif
174
175 return exit_val;
176 }
177