mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
79 lines
1.6 KiB
C
79 lines
1.6 KiB
C
/* 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* 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 "config.h"
|
|
|
|
#if defined (HAVE_UNISTD_H)
|
|
# ifdef _MINIX
|
|
# include <sys/types.h>
|
|
# endif
|
|
# include <unistd.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#ifndef _MINIX
|
|
#include "bashtypes.h"
|
|
#endif
|
|
#include <signal.h>
|
|
#include <errno.h>
|
|
|
|
#include "command.h"
|
|
#include "general.h"
|
|
#include "sig.h"
|
|
|
|
#ifndef errno
|
|
extern int errno;
|
|
#endif
|
|
|
|
int nw;
|
|
|
|
sighandler
|
|
sigpipe (sig)
|
|
int sig;
|
|
{
|
|
fprintf (stderr, "%d\n", nw);
|
|
exit (0);
|
|
}
|
|
|
|
int
|
|
main (argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
char buf[128];
|
|
register int i;
|
|
|
|
for (i = 0; i < 128; i++)
|
|
buf[i] = ' ';
|
|
|
|
signal (SIGPIPE, sigpipe);
|
|
|
|
nw = 0;
|
|
for (;;)
|
|
{
|
|
int n;
|
|
n = write (1, buf, 128);
|
|
nw += n;
|
|
}
|
|
return (0);
|
|
}
|