mirror of
https://github.com/eclipse-threadx/filex.git
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116 lines
5.8 KiB
C
116 lines
5.8 KiB
C
/***************************************************************************
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* Copyright (c) 2024 Microsoft Corporation
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*
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* This program and the accompanying materials are made available under the
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* terms of the MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** FileX Component */
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/** */
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/** Unicode */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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#define FX_SOURCE_CODE
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/* Include necessary system files. */
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#include "fx_api.h"
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#include "fx_unicode.h"
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FX_CALLER_CHECKING_EXTERNS
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _fxe_unicode_short_name_get_extended PORTABLE C */
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/* 6.1 */
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/* AUTHOR */
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/* */
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/* William E. Lamie, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This function checks for errors in the Unicode short name get */
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/* service. */
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/* */
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/* INPUT */
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/* */
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/* media_ptr Pointer to media */
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/* source_unicode_name Pointer to unicode name */
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/* source_unicode_length Length of unicode name */
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/* destination_short_name Pointer to destination name */
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/* short_name_buffer_length Buffer length of short name */
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/* */
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/* OUTPUT */
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/* */
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/* Completion Status */
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/* */
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/* CALLS */
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/* */
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/* _fx_unicode_short_name_get_extended Actual unicode short name get */
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/* service */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 05-19-2020 William E. Lamie Initial Version 6.0 */
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/* 09-30-2020 William E. Lamie Modified comment(s), */
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/* resulting in version 6.1 */
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/* */
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/**************************************************************************/
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UINT _fxe_unicode_short_name_get_extended(FX_MEDIA *media_ptr, UCHAR *source_unicode_name, ULONG source_unicode_length,
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CHAR *destination_short_name, ULONG short_name_buffer_length)
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{
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UINT status, i;
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/* Check for a NULL media or name pointers. */
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if ((media_ptr == FX_NULL) || (source_unicode_name == FX_NULL) || (source_unicode_length == 0) || (destination_short_name == FX_NULL))
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{
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return(FX_PTR_ERROR);
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}
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/* Check for zero length buffer. */
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if (short_name_buffer_length == 0)
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{
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return(FX_BUFFER_ERROR);
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}
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/* Check for a valid caller. */
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FX_CALLER_CHECKING_CODE
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/* Check unicode zero in source_unicode_name */
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for (i = 0; i < (source_unicode_length << 1); i += 2)
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{
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if ((source_unicode_name[i] == 0) && (source_unicode_name[i + 1] == 0))
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{
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return(FX_INVALID_NAME);
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}
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}
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/* Call actual Unicode short name get service. */
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status = _fx_unicode_short_name_get_extended(media_ptr, source_unicode_name, source_unicode_length, destination_short_name, short_name_buffer_length);
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/* Return status to the caller. */
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return(status);
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}
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