reactos/sdk/tools/mkisofs/schilytools/libschily/stdio/niwrite.c

42 lines
1 KiB
C

/* @(#)niwrite.c 1.7 09/06/30 Copyright 1986, 2001-2009 J. Schilling */
/*
* Non interruptable write
*
* Copyright (c) 1986, 2001-2009 J. Schilling
*/
/*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* See the file CDDL.Schily.txt in this distribution for details.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file CDDL.Schily.txt from this distribution.
*/
#include "schilyio.h"
EXPORT ssize_t
_niwrite(f, buf, count)
int f;
void *buf;
size_t count;
{
ssize_t ret;
int oerrno = geterrno();
if ((ret = (ssize_t)count) < 0) {
seterrno(EINVAL);
return ((ssize_t)-1);
}
while ((ret = write(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);
}