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
38static void usage (int ret) __attribute__((noreturn));
39
40krb5_context kcc_context;
41static int version_flag;
42static int help_flag;
43
44static struct getargs args[] = {
45    { "version", 	0,   arg_flag, &version_flag, NULL, NULL },
46    { "help",		0,   arg_flag, &help_flag, NULL, NULL }
47};
48
49static void
50usage(int ret)
51{
52    arg_printusage_i18n(args,
53			sizeof(args)/sizeof(*args),
54			N_("Usage: ", ""),
55			NULL,
56			"command ..",
57			getarg_i18n);
58    exit (ret);
59}
60
61int
62help(void *opt, int argc, char **argv)
63{
64    sl_slc_help(commands, argc, argv);
65    return 0;
66}
67
68int
69kgetcred(struct kgetcred_options *opt, int argc, char **argv)
70{
71    if(opt->version_flag) {
72	print_version(NULL);
73	exit(0);
74    }
75    return 0;
76}
77
78/*
79 * Wrapper for command line compatiblity
80 */
81
82int
83kvno(struct kvno_options *opt, int argc, char **argv)
84{
85    struct kgetcred_options k;
86    memset(&k, 0, sizeof(k));
87
88    if(opt->version_flag) {
89	print_version(NULL);
90	exit(0);
91    }
92
93    k.cache_string = opt->cache_string;
94    k.enctype_string = opt->enctype_string;
95
96    return kgetcred(&k, argc, argv);
97}
98
99static int
100command_alias(const char *name)
101{
102    const char *aliases[] = {
103	"kinit", "klist", "kswitch", "kgetcred", "kvno", "kdeltkt",
104	"kdestroy", "kcpytkt", NULL
105    }, **p = aliases;
106
107    while (*p && strcmp(name, *p) != 0)
108	p++;
109    return *p != NULL;
110}
111
112
113int
114main(int argc, char **argv)
115{
116    krb5_error_code ret;
117    int optidx = 0;
118    int exit_status = 0;
119
120    setprogname (argv[0]);
121
122    setlocale (LC_ALL, "");
123    bindtextdomain ("heimdal_kuser", HEIMDAL_LOCALEDIR);
124    textdomain("heimdal_kuser");
125
126    ret = krb5_init_context(&kcc_context);
127    if (ret == KRB5_CONFIG_BADFORMAT)
128	errx (1, "krb5_init_context failed to parse configuration file");
129    else if (ret)
130	errx(1, "krb5_init_context failed: %d", ret);
131
132    /*
133     * Support linking of kcc to commands
134     */
135
136    if (!command_alias(getprogname())) {
137
138	if (argc == 1) {
139	    sl_slc_help(commands, 0, NULL);
140	    return 1;
141	}
142
143	if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
144	    usage(1);
145
146	if (help_flag)
147	    usage (0);
148
149	if(version_flag) {
150	    print_version(NULL);
151	    exit(0);
152	}
153
154    } else {
155	argv[0] = rk_UNCONST(getprogname());
156    }
157
158    argc -= optidx;
159    argv += optidx;
160
161    if (argc != 0) {
162	ret = sl_command(commands, argc, argv);
163	if(ret == -1)
164	    krb5_warnx(kcc_context, "unrecognized command: %s", argv[0]);
165	else if (ret == -2)
166	    ret = 0;
167	if(ret != 0)
168	    exit_status = 1;
169    } else {
170	sl_slc_help(commands, argc, argv);
171	exit_status = 1;
172    }
173
174    krb5_free_context(kcc_context);
175    return exit_status;
176}
177