version.c revision f2e35a3a 
1/* $XTermId: version.c,v 1.7 2020/06/23 22:46:02 tom Exp $ */
2
3/*
4 * Copyright 2013-2019,2020 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
52	buffer = malloc(sizeof(vendor_version) + 256);
53	if (buffer == 0) {
54	    result = vendor;
55	} else {
56	    char first[sizeof(vendor_version)];
57	    char second[sizeof(vendor_version)];
58
59	    /* some vendors leave trash in this string */
60	    for (;;) {
61		if (!strncmp(vendor, "Version ", (size_t) 8))
62		    vendor += 8;
63		else if (isspace(CharOf(*vendor)))
64		    ++vendor;
65		else
66		    break;
67	    }
68	    if (strlen(vendor) < BUFSIZ &&
69		sscanf(vendor, "%[0-9.] %[A-Za-z_0-9.]", first, second) == 2) {
70		sprintf(buffer, "%.80s %.80s(%d)", second, first, XTERM_PATCH);
71	    } else {
72		sprintf(buffer, "%.80s(%d)", vendor, XTERM_PATCH);
73	    }
74	    result = buffer;
75	}
76    } else {
77	result = buffer;
78    }
79    return result;
80}
81