nuttx/libs/libc/stdio/lib_tmpfile.c
Xiang Xiao 9ff32427bf libc: Implement tmpfile() function
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I00bdb42006b40bf1b9bc0bb6865b9b88b4acbb7b
2020-06-02 09:32:25 -06:00

52 lines
1.6 KiB
C

/****************************************************************************
* libs/libc/stdio/lib_tmpfile.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/****************************************************************************
* Public Functions
****************************************************************************/
FAR FILE *tmpfile(void)
{
char path[L_tmpnam] = "/tmp/XXXXXX.tmp";
FAR FILE *fp = NULL;
int fd;
fd = mkstemp(path);
if (fd >= 0)
{
unlink(fd);
fp = fdopen(fd, "w+");
if (fp == NULL)
{
close(fd);
}
}
return fp;
}