cdrtools/libschily/stdio/ffilewrite.c
2025-06-15 04:19:58 +08:00

41 lines
999 B
C

/* @(#)ffilewrite.c 1.8 09/06/30 Copyright 1986-2009 J. Schilling */
/*
* Copyright (c) 1986-2009 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
ffilewrite(f, buf, len)
register FILE *f;
void *buf;
size_t len;
{
register int fd;
register ssize_t ret;
int oerrno = geterrno();
down2(f, _IORWT, _IORW);
fd = fileno(f);
while ((ret = write(fd, buf, len)) < 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);
}