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/* @(#)niread.c 1.11 03/09/23 Copyright 1986, 1996-2003 J. Schilling */
/*
* Non interruptable read
*
* Copyright (c) 1986, 1996-2003 J. Schilling
*/
/*
* This program 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 2, or (at your option)
* any later version.
*
* This program 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
* this program; see the file COPYING. If not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "io.h"
#include <errno.h>
EXPORT int
_niread(f, buf, count)
int f;
void *buf;
int count;
{
int ret;
int oerrno = geterrno();
while ((ret = read(f, buf, count)) < 0 && geterrno() == EINTR) {
/*
* Set back old 'errno' so we don't change the errno visible
* to the outside if we did not fail.
*/
seterrno(oerrno);
}
return (ret);
}
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