/*-
 * Copyright (c) 2001-2005 Christian S.J. Peron
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#ifndef lint
static const char rcsid[] =
        "@(#) $Header: /usr/cvs/ipex/version.c,v 1.3 2005/02/16 17:16:55 modulus Exp $";
#endif
#include <sys/param.h>
#include <sys/utsname.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <stdlib.h>

int
main(argc, argv)
        int argc;
        char **argv;
{
	char hn[MAXHOSTNAMELEN + 1];
	struct utsname uts;
        char version[1024];
        FILE *fp;
	time_t clock_string;
	char *c;
	char *path;

	time(&clock_string);
        if ((fp = fopen("version.h", "w")) == NULL) {
                perror("fopen()");
                exit(1);
        }

	if ((path = malloc(MAXPATHLEN)) == 0) {
		fprintf(stderr,"fatal: exhausted memory\n");
		exit(1);
	}
	getwd(path);
        (void) fprintf(fp,"#if (!defined(_VERSION_H_))\n");
        (void) fprintf(fp,"#define _VERSION_H_\n\n");

	memset(&uts, 0, sizeof(uts));
	uname(&uts);

        snprintf(version,sizeof(version),
                "static const char version_string[]=\n"
                "\"%s@%s:%s (%s/%s)\";\n\n",
                getlogin(),
		uts.nodename,
                path,
                uts.sysname,
                uts.machine);

	c = ctime(&clock_string);
	(c[strlen(c)-1] = '\0');

	(void) fprintf(fp,"static const char clock__[]=\n"
				"\"%s\";\n\n", c);

        (void) fprintf(fp,"%s\n", version);
        (void) fprintf(fp,"#endif /* _VERSION_H_ */\n");
	free(path);
        fclose(fp);
        return(0);
}