From 772f20abb0a3a0979c440114bf3a1cff5b3cef03 Mon Sep 17 00:00:00 2001
From: cvpcs <root@cvpcs.org>
Date: Wed, 2 Jun 2010 11:02:31 -0500
Subject: initial import of bash 4.1

---
 builtins/psize.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 builtins/psize.c

(limited to 'builtins/psize.c')

diff --git a/builtins/psize.c b/builtins/psize.c
new file mode 100644
index 0000000..30881fb
--- /dev/null
+++ b/builtins/psize.c
@@ -0,0 +1,79 @@
+/* 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);
+}
-- 
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