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
usage(int status)64 usage (int status)
65 {
66 arg_printusage (args, num_args, NULL, "");
67 exit (status);
68 }
69
70 int
main(int argc,char ** argv)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