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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Ptr args aren't checked for NULL because the program would be a
* catastrophic mess anyway. Better to abort than just to return NULL.
*/
#include "synonyms.h"
#include "file64.h"
#include "mtlib.h"
#include <stdio.h>
#include <string.h>
#include <thread.h>
#include <synch.h>
#include <sys/types.h>
#include <unistd.h>
#include <limits.h>
#include "stdiom.h"
#include "mse.h"
int
fputs(const char *ptr, FILE *iop)
{
ssize_t ndone = 0L, n;
unsigned char *cptr, *bufend;
rmutex_t *lk;
size_t ptrlen;
size_t len = 0;
int c;
FLOCKFILE(lk, iop);
_SET_ORIENTATION_BYTE(iop);
if (_WRTCHK(iop)) {
FUNLOCKFILE(lk);
return (EOF);
}
bufend = _bufend(iop);
ptrlen = strlen(ptr);
if ((iop->_flag & _IONBF) == 0) {
for (; ; ptr += len, ptrlen -= len) {
while ((n = bufend - (cptr = iop->_ptr)) <= 0) {
/* full buf */
if (_xflsbuf(iop) == EOF) {
FUNLOCKFILE(lk);
return (EOF);
}
}
/*
* n: number of available bytes in the buffer of 'iop'
* ptrlen: number of remaining bytes in 'ptr' string
*
* If all remaining bytes in 'ptr' can be copied into
* the buffer of 'iop' (ptrlen <= n), 'len' is set to
* 'ptrlen'. Otherwise, 'len' is set to 'n'.
* Then, copies 'len' bytes from 'ptr' to the buffer
* of 'iop'.
*/
len = (c = (ptrlen <= n)) ? ptrlen : n;
(void) memcpy(cptr, ptr, len);
iop->_cnt -= len;
iop->_ptr += len;
if (_needsync(iop, bufend))
_bufsync(iop, bufend);
ndone += len;
if (c) {
/*
* All bytes in 'ptr' have been copied into
* the buffer of 'iop'.
* Flush buffer if line-buffered
*/
if (iop->_flag & _IOLBF)
if (_xflsbuf(iop) == EOF) {
FUNLOCKFILE(lk);
return (EOF);
}
FUNLOCKFILE(lk);
if (ndone <= INT_MAX)
return ((int)ndone);
else
return (EOF);
}
}
}
else
{
/* write out to an unbuffered file */
ssize_t num_wrote;
ssize_t count = (ssize_t)ptrlen;
int fd = GET_FD(iop);
while ((num_wrote = write(fd, ptr, (size_t)count)) != count) {
if (num_wrote <= 0) {
iop->_flag |= _IOERR;
FUNLOCKFILE(lk);
return (EOF);
}
count -= num_wrote;
ptr += num_wrote;
}
FUNLOCKFILE(lk);
if (ptrlen <= INT_MAX)
return ((int)ptrlen);
else
return (EOF);
}
}
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