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- /* psize.c - Find pipe size. */
-
- /* Copyright (C) 1987, 1991 Free Software Foundation, Inc.
-
- This file is part of GNU Bash, the Bourne Again SHell.
-
- Bash 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 1, or (at your option)
- any later version.
-
- Bash 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 Bash; see the file COPYING. If not, write to the Free
- Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Write output in 128-byte chunks until we get a sigpipe or write gets an
- EPIPE. Then report how many bytes we wrote. We assume that this is the
- pipe size. */
-
- #include <stdio.h>
- #include <sys/types.h>
- #include <signal.h>
- #include <errno.h>
-
- #include "../general.h"
- extern int errno;
-
- int nw;
-
- sighandler
- sigpipe (sig)
- int sig;
- {
- fprintf (stderr, "%d\n", nw);
- exit (0);
- }
-
- #if !defined (NeXT)
- char *
- memset (s, c, n)
- register char *s;
- register int c, n;
- {
- register char *p = s;
-
- while (--n >= 0)
- *s++ = c;
-
- return (p);
- }
- #endif /* !NeXT */
-
- main (argc, argv)
- int argc;
- char **argv;
- {
- char buf[128];
-
- memset (buf, ' ', 128);
- signal (SIGPIPE, sigpipe);
-
- nw = 0;
- for (;;)
- {
- int n;
- n = write (1, buf, 128);
- nw += n;
- }
- }
-