* Copyright (c) 1985 Corporation for Research and Educational Networking

/*
* Copyright (c) 1985 Corporation for Research and Educational Networking
* Copyright (c) 1988 University of Illinois Board of Trustees, Steven
* Dorner, and Paul Pomes
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Corporation for
* Research and Educational Networking (CREN), the University of
* Illinois at Urbana, and their contributors.
* 4. Neither the name of CREN, the University nor the names of their
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE TRUSTEES 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 TRUSTEES 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 char RcsId[] = "@(#)$Id: credb.c,v 1.8 1994/03/12 00:59:25 paul Exp $";
#endif

/*
* This program creates the files associated with a database. if the name of
* the database is given, then all files are made. If a specific file is
* named then that file only is made. A database name can't contain a ".".
* The size is mandatory and is used to build the .idx file.
*/

#include "protos.h"

#define DIR 1
#define INDEX 2

static char *Me; /* the name of this program */

main(argc, argv)
int argc;
char **argv;
{
int fd, fsize, ftype;
char zero = 0;
char *dotptr;
char tmp[100];
struct dirhead Dirhead;

/* when you're strange, no one remembers your name */
Me = *argv;

while (--argc > 0 && **(++argv) == '-')
{
char *equal, **opt;

(*argv)++;
if (equal = strchr(*argv, '='))
{
*equal++ = '\0';
for (opt = Strings; *opt; opt += 2)
if (!strcmp(opt[0], *argv))
{
opt[1] = equal;
break;
}
if (*opt == '\0')
{
fprintf(stderr, "%s: %s: unknown string.\n",
Me, *argv);
exit(1);
}
} else
{
fprintf(stderr, "%s: %s: unknown option.\n", Me, *argv);
exit(1);
}
}
if (argc < 1 || (fsize = atoi(*argv)) == 0)
{
printf("usage: %s size [filename[.(idx|dir)]]\n", Me);
exit(1);
}
fsize *= (sizeof (struct iindex));
argc--; argv++;

Database = (argc > 0) ? *argv : DATABASE;
fprintf(stderr, "%s: creating database %s\n", Me, Database);
sleep(5);
if (!(dotptr = strrchr(Database, '.'))) /* create all */
ftype = INDEX | DIR;
else if (!strcmp(dotptr + 1, "dir"))
{
ftype = DIR;
*dotptr = '\0';
} else if (!strcmp(dotptr + 1, "idx"))
{
ftype = INDEX;
*dotptr = '\0';
}
if (ftype & INDEX)
{ /* make index file ,uses size */
if (!strchr(Database, '.'))
sprintf(tmp, "%s.idx", Database);
else
strcpy(tmp, Database);
if (!(fd = creat(tmp, 0664)))
{
perror(tmp);
exit(1);
}

if (lseek(fd, fsize - 1, 0) < 0)
{
perror(tmp);
exit(1);
}
if (write(fd, &zero, 1) < 0)
{
perror(tmp);
exit(1);
}
printf("%s : %d bytes\n", tmp, fsize);
close(fd);

/* create overflow file */
sprintf(tmp, "%s.iov", Database);
if (!(fd = creat(tmp, 0664)))
{
perror(tmp);
exit(1);
}
close(fd);
}
if (ftype & DIR)
{
if (!strchr(Database, '.'))
sprintf(tmp, "%s.dir", Database);
else
strcpy(tmp, Database);
if (!(fd = creat(tmp, 0664)))
{
perror(tmp);
exit(1);
}
Dirhead.nents = 0;
Dirhead.next_id = 1;
Dirhead.nfree = 0;
if (lseek(fd, 0, 0) < 0)
{
perror(tmp);
exit(1);
}
if (write(fd, &Dirhead, sizeof (Dirhead)) < 0)
{
perror(tmp);
exit(1);
}
fsize = (sizeof (DREC));
if (lseek(fd, fsize - 1, 0) < 0)
{
perror(tmp);
exit(1);
}
if (write(fd, &zero, 1) < 0)
{
perror(tmp);
exit(1);
}
printf("%s : %d bytes\n", tmp, fsize);
close(fd);

/* create overflow file */
sprintf(tmp, "%s.dov", Database);
if (!(fd = creat(tmp, 0664)))
{
perror(tmp);
exit(1);
}
close(fd);
}
exit(0);
}