findnext.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 106 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
*
****************************************************************************/


#include "variety.h"
#include "int64.h"
#include "widechar.h"
#include <io.h>
#include "find.h"
#include "seterrno.h"
#ifdef __NT__
    #include <windows.h>
    #include "libwin32.h"
    #include "ntex.h"
#else
#endif

#ifdef __WIDECHAR__
 #ifdef __INT64__
  _WCRTLINK int _wfindnexti64( long handle, struct _wfinddatai64_t *fileinfo )
 #else
  _WCRTLINK int _wfindnext( long handle, struct _wfinddata_t *fileinfo )
 #endif
#else
 #ifdef __INT64__
  _WCRTLINK int _findnexti64( long handle, struct _finddatai64_t *fileinfo )
 #else
  _WCRTLINK int _findnext( long handle, struct _finddata_t *fileinfo )
 #endif
#endif
{
#ifdef __NT__
    WIN32_FIND_DATA ffb;
    BOOL            rc;

    /*** Try to find another matching file ***/
 #ifdef __WIDECHAR__
    rc = __lib_FindNextFileW( (HANDLE)handle, &ffb );
 #else
    rc = FindNextFileA( (HANDLE)handle, &ffb );
 #endif
    if( rc == FALSE ) {
        __set_errno_nt();
        return( -1 );
    }
    if( !__NTFindNextFileWithAttr( (HANDLE)handle, FIND_ATTR, &ffb ) ) {
        __set_errno_dos( ERROR_FILE_NOT_FOUND );
        return( -1 );
    }

    /*** Got one! ***/
 #ifdef __INT64__
    __F_NAME(__nt_finddatai64_cvt,__nt_wfinddatai64_cvt)( &ffb, fileinfo );
 #else
    __F_NAME(__nt_finddata_cvt,__nt_wfinddata_cvt)( &ffb, fileinfo );
 #endif
    return( 0 );
#else
    DOSFINDTYPE *   findbuf = (DOSFINDTYPE*) handle;
    unsigned        rc;

#ifdef __WATCOM_LFN__
    findbuf->lfnax = (int)handle;
#endif
    rc = __F_NAME(_dos_findnext,_wdos_findnext)( findbuf );
    if( rc != 0 ) {
        return( -1 );
    } else {
 #ifdef __INT64__
        __F_NAME(__dos_finddatai64_cvt,__dos_wfinddatai64_cvt)( findbuf, fileinfo );
 #else
        __F_NAME(__dos_finddata_cvt,__dos_wfinddata_cvt)( findbuf, fileinfo );
 #endif
        return( 0 );
    }
#endif
}