#ifdef	ournix
#include "ournix.h"
#endif
char sccsID[] = "@(#) zerofile.c V1.4 Copyright Julian H. Stacey, Munich, 31st January 1989.\n";
/* creates a file with bland boring data to occupy remaining space on disk */

#ifdef ns32000
#define	BSD
#endif

#include	<stdio.h>
#include <stdlib.h>
#if ( MSDOS || __OpenBSD__ )
#include	<fcntl.h>	/* for O_RDONLY */
#endif
#include	<sys/types.h>
#include 	<sys/stat.h>
#ifdef	BSD
#include	<sys/file.h>
#endif
#if ( defined i386 || defined __FreeBSD__ /* allow for FreeBSD amd64 */ )
 /* Find std includes with: cp /dev/null ~/tmp/tmp.c ; cc -E -dM ~/tmp/tmp.c */
#include	<sys/fcntl.h>	/* for O_RDONLY */
#endif

#include <unistd.h>

char	zerofile[] = "zerofile" ;
#define	SIZE	32
char	buffer[SIZE] ;
char	**ARGV ;

int main(argc,argv)	
	char **argv ; int argc ;
	{
	int zero_fd ;
	int count ;
	char	*p_c ;

	ARGV = argv ;
#ifdef	VSL	/* { */
#include	"../../include/vsl.h"
#endif		/* } */
	if ((zero_fd = open(zerofile, O_WRONLY | O_CREAT | 
#ifdef	MSDOS
	O_BINARY |
#endif
			O_TRUNC , S_IREAD | S_IWRITE)) == -1)
		{
		fprintf(stderr,"%s: Cant open %s.\n",*argv,zerofile);
		exit(1);
		}
#define	PAD_CHAR	'X'
	for (count = SIZE - 2 ; count--;buffer[count] = PAD_CHAR ) ;
	(void) sprintf(buffer, "AAZZ: repeat length %d.\r\n",(int)SIZE) ;
	for ( p_c = buffer ; *++p_c != '\0' ; ) 
		; *p_c = PAD_CHAR ;
	buffer[SIZE - 2] = '\r';
	buffer[SIZE - 1] = '\n';

	while (write(zero_fd,buffer,SIZE) == SIZE) ;
	if (close(zero_fd) ) { perror(*ARGV) ; exit(1) ; }
	exit(0);
	}