public-domain implementation of V8 "newer"

[Moderator, John Quarterman]

From: gwyn at brl.arpa (VLD/VMB) (Douglas A. Gwyn)
Date:     Mon, 3 Nov 86 10:37:13 EST

/*
	newer -- test file modification dates

	last edit:	86/03/30	D A Gwyn
*/
#ifndef lint
static char	SCCS_ID[] = "@(#)newer.c	1.1";
#endif

#include	<sys/types.h>
#include	<sys/stat.h>

#define	EXIT	_exit			/* non-STDIO exit(), if available */

#define	STDERR	2			/* standard error file descriptor */

extern void	EXIT();
extern int	stat(), write();

main( argc, argv )
	int			argc;
	char			*argv[];
	{
	static char		usage[] = "Usage: newer file1 file2\n";
	static struct stat	file1;	/* file1 statistics */
	static struct stat	file2;	/* file2 statistics */

	if ( argc != 3 )
		{			/* wrong number of arguments */
		(void)write( STDERR, usage, sizeof usage - 1 );
		EXIT( 3 );
		}

	if ( stat( argv[1], &file1 ) != 0 )
		EXIT( 2 );		/* file1 doesn't exist */

	if ( stat( argv[2], &file2 ) != 0 )
		EXIT( 0 );		/* file2 doesn't exist */

#ifdef lint
	return file1.st_mtime < file2.st_mtime ? 1 : 0;
#else
	EXIT( file1.st_mtime < file2.st_mtime ? 1 : 0 );
#endif
	}

Volume-Number: Volume 8, Number 29