xref: /freebsd/crypto/heimdal/lib/vers/print_version.c (revision adb0ddaeac0a71a08d6af3a711387b59efcc94b6)
1 /*
2  * Copyright (c) 1998 - 2000 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 #ifdef HAVE_CONFIG_H
35 #include <config.h>
36 RCSID("$Id: print_version.c,v 1.3 2001/04/21 16:05:48 joda Exp $");
37 #endif
38 #include "roken.h"
39 
40 #include "print_version.h"
41 
42 void
43 print_version(const char *progname)
44 {
45     const char *arg[] = VERSIONLIST;
46     const int num_args = sizeof(arg) / sizeof(arg[0]);
47     char *msg;
48     size_t len = 0;
49     int i;
50 
51     if(progname == NULL)
52 	progname = getprogname();
53 
54     if(num_args == 0)
55 	msg = "no version information";
56     else {
57 	for(i = 0; i < num_args; i++) {
58 	    if(i > 0)
59 		len += 2;
60 	    len += strlen(arg[i]);
61 	}
62 	msg = malloc(len + 1);
63 	if(msg == NULL) {
64 	    fprintf(stderr, "%s: out of memory\n", progname);
65 	    return;
66 	}
67 	msg[0] = '\0';
68 	for(i = 0; i < num_args; i++) {
69 	    if(i > 0)
70 		strcat(msg, ", ");
71 	    strcat(msg, arg[i]);
72 	}
73     }
74     fprintf(stderr, "%s (%s)\n", progname, msg);
75     fprintf(stderr, "Copyright (c) 1999-2001 Kungliga Tekniska H�gskolan\n");
76     if(num_args != 0)
77 	free(msg);
78 }
79