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      1 /* $XTermId: version.c,v 1.8 2024/12/01 20:27:00 tom Exp $ */
      2 
      3 /*
      4  * Copyright 2013-2020,2024 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  */
     42 const char *
     43 xtermVersion(void)
     44 {
     45     static const char vendor_version[] = __vendorversion__;
     46     static char *buffer;
     47     const char *result;
     48 
     49     if (buffer == NULL) {
     50 	const char *vendor = vendor_version;
     51 
     52 	buffer = malloc(sizeof(vendor_version) + 256);
     53 	if (buffer == NULL) {
     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