add POSIX/IEEE contribution notice

[unix-history] / usr / src / bin / echo / echo.c

/*
* Copyright (c) 1989 The Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1989 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)echo.c      5.4 (Berkeley) %G%";
#endif /* not lint */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* ARGSUSED */
main(argc, argv)
       int argc;
       char **argv;
{
       int nflag;

       /* This utility may NOT do getopt(3) option parsing. */
       if (*++argv && !strcmp(*argv, "-n")) {
               ++argv;
               nflag = 1;
       }
       else
               nflag = 0;

       while (*argv) {
               (void)printf("%s", *argv);
               if (*++argv)
                       putchar(' ');
       }
       if (!nflag)
               putchar('\n');
       exit(0);
}