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/*
* makepmafile.c -- Create a small sparse file.
*/
/*
* Copyright (C) 2022, 2023,
* the Free Software Foundation, Inc.
*
* This file is part of GAWK, the GNU implementation of the
* AWK Programming Language.
*
* GAWK is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GAWK is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
int
main(int argc, char **argv)
{
size_t four_meg = 1024 * 1024 * 4;
char c = 0;
int fd = creat("test.pma", 0600);
if (fd < 0) {
fprintf(stderr, "%s: could not create test.pma: %s\n",
argv[0], strerror(errno));
exit(EXIT_FAILURE);
}
if (lseek(fd, four_meg - 1, SEEK_SET) < 0) {
fprintf(stderr, "%s: lseek failed: %s\n",
argv[0], strerror(errno));
exit(EXIT_FAILURE);
}
if (write(fd, &c, 1) < 0) {
fprintf(stderr, "%s: write failed: %s\n",
argv[0], strerror(errno));
exit(EXIT_FAILURE);
}
(void) close(fd);
return EXIT_SUCCESS;
}
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