b5d4a01821
Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
79 lines
3.1 KiB
C
79 lines
3.1 KiB
C
/****************************************************************************
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* libs/libc/stdio/lib_tmpnam.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: tmpnam
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*
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* Description:
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* The tmpnam() function generates a string that is a valid filename and
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* that is not the same as the name of an existing file. The function is
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* potentially capable of generating TMP_MAX different strings, but any or
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* all of them may already be in use by existing files and thus not be
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* suitable return values.
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*
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* The tmpnam() function generates a different string each time it is
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* called from the same process, up to {TMP_MAX} times. If it is called
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* more than {TMP_MAX} times, the behavior is implementation-defined.
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*
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* Returned Value:
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* Upon successful completion, tmpnam() returns a pointer to a string. I
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* no suitable string can be generated, the tmpnam() function will
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* return a null pointer.
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*
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* If the argument s is a null pointer, tmpnam() will leave its result
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* in an internal static object and return a pointer to that object.
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* Subsequent calls to tmpnam() may modify the same object. If the
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* argument s is not a null pointer, it is presumed to point to an
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* array of at least L_tmpnam chars; tmpnam() will write its result in
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* that array and will return the argument as its value.
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*
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****************************************************************************/
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FAR char *tmpnam(FAR char *s)
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{
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static char path[L_tmpnam];
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if (s == NULL)
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{
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s = path;
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}
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snprintf(s, L_tmpnam, "%s/XXXXXX", P_tmpdir);
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return mktemp(s);
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}
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