version.c revision 01037d57 
1/* $XTermId: version.c,v 1.2 2015/04/10 08:35:33 tom Exp $ */
2
3/*
4 * Copyright 2013,2015 by Thomas E. Dickey
5 *
6 *                         All Rights Reserved
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sublicense, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22 * IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
23 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 * Except as contained in this notice, the name(s) of the above copyright
28 * holders shall not be used in advertising or otherwise to promote the
29 * sale, use or other dealings in this Software without prior written
30 * authorization.
31 */
32
33#include <ctype.h>
34#include <xterm.h>
35#include <version.h>
36
37/*
38 * Returns the version-string used in the "-v' message as well as a few other
39 * places.  It is derived (when possible) from the __vendorversion__ symbol
40 * that some newer imake configurations define.
41 */
42const char *
43xtermVersion(void)
44{
45    static const char vendor_version[] = __vendorversion__;
46    static char *buffer;
47    const char *result;
48
49    if (buffer == 0) {
50	const char *vendor = vendor_version;
51	char first[BUFSIZ];
52	char second[BUFSIZ];
53
54	buffer = CastMallocN(char, strlen(vendor) + 9);
55	if (buffer == 0) {
56	    result = vendor;
57	} else {
58	    /* some vendors leave trash in this string */
59	    for (;;) {
60		if (!strncmp(vendor, "Version ", (size_t) 8))
61		    vendor += 8;
62		else if (isspace(CharOf(*vendor)))
63		    ++vendor;
64		else
65		    break;
66	    }
67	    if (strlen(vendor) < BUFSIZ &&
68		sscanf(vendor, "%[0-9.] %[A-Za-z_0-9.]", first, second) == 2) {
69		sprintf(buffer, "%s %s(%d)", second, first, XTERM_PATCH);
70	    } else {
71		sprintf(buffer, "%s(%d)", vendor, XTERM_PATCH);
72	    }
73	    result = buffer;
74	}
75    } else {
76	result = buffer;
77    }
78    return result;
79}
80