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Transition FileX to Eclipse Fundation

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TiejunZhou
2024-01-02 07:35:14 +00:00
commit 14884808b5
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common/src/fx_directory_local_path_get_copy.c
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/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** FileX Component */
/** */
/** Directory */
/** */
/**************************************************************************/
/**************************************************************************/
#define FX_SOURCE_CODE
/* Include necessary system files. */
#include "fx_api.h"
#include "fx_system.h"
#include "fx_file.h"
#include "fx_utility.h"
#include "fx_directory.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _fx_directory_local_path_get_copy PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function copies the local default directory for this thread */
/* into the specified buffer. */
/* */
/* INPUT */
/* */
/* media_ptr Media control block pointer */
/* return_path_name_buffer Destination buffer for name */
/* return_path_name_buffer_size Size of buffer pointed to by */
/* return_path_name_buffer */
/* */
/* OUTPUT */
/* */
/* return status */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 William E. Lamie Initial Version 6.0 */
/* 09-30-2020 William E. Lamie Modified comment(s), verified */
/* memcpy usage, */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
UINT _fx_directory_local_path_get_copy(FX_MEDIA *media_ptr, CHAR *return_path_name_buffer, UINT return_path_name_buffer_size)
{
UINT status;
CHAR *return_path_name;
UINT path_name_length_with_null_terminator;
/* Get the pointer to the path. */
status = _fx_directory_local_path_get(media_ptr, &return_path_name);
if (status == FX_SUCCESS)
{
/* Was a path set? */
if (return_path_name != FX_NULL)
{
/* Get the length of the path. */
path_name_length_with_null_terminator = _fx_utility_string_length_get(return_path_name, FX_MAXIMUM_PATH) + 1;
/* Can it fit in the user's buffer? */
if (path_name_length_with_null_terminator <= return_path_name_buffer_size)
{
/* Copy the path name into the user's buffer. */
_fx_utility_memory_copy((UCHAR *) return_path_name, (UCHAR *) return_path_name_buffer, path_name_length_with_null_terminator); /* Use case of memcpy is verified. */
}
else
{
/* Buffer is too small. Return error. */
return(FX_BUFFER_ERROR);
}
}
else
{
/* Set zero-length string. */
return_path_name_buffer[0] = '\0';
}
}
/* Return status. */
return(status);
}