xenocara/app/xterm/version.c

81 lines
2.6 KiB
C

/* $XTermId: version.c,v 1.6 2019/11/13 23:52:20 tom Exp $ */
/*
* Copyright 2013-2018,2019 by Thomas E. Dickey
*
* All Rights Reserved
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name(s) of the above copyright
* holders shall not be used in advertising or otherwise to promote the
* sale, use or other dealings in this Software without prior written
* authorization.
*/
#include <ctype.h>
#include <xterm.h>
#include <version.h>
/*
* Returns the version-string used in the "-v' message as well as a few other
* places. It is derived (when possible) from the __vendorversion__ symbol
* that some newer imake configurations define.
*/
const char *
xtermVersion(void)
{
static const char vendor_version[] = __vendorversion__;
static char *buffer;
const char *result;
if (buffer == 0) {
const char *vendor = vendor_version;
buffer = TextAlloc(sizeof(vendor_version) + 256);
if (buffer == 0) {
result = vendor;
} else {
char first[sizeof(vendor_version)];
char second[sizeof(vendor_version)];
/* some vendors leave trash in this string */
for (;;) {
if (!strncmp(vendor, "Version ", (size_t) 8))
vendor += 8;
else if (isspace(CharOf(*vendor)))
++vendor;
else
break;
}
if (strlen(vendor) < BUFSIZ &&
sscanf(vendor, "%[0-9.] %[A-Za-z_0-9.]", first, second) == 2) {
sprintf(buffer, "%.80s %.80s(%d)", second, first, XTERM_PATCH);
} else {
sprintf(buffer, "%.80s(%d)", vendor, XTERM_PATCH);
}
result = buffer;
}
} else {
result = buffer;
}
return result;
}