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59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
/* $Id: access.c,v 1.1 2002/05/17 02:16:16 hyperion Exp $
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*/
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/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS POSIX+ Subsystem
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* FILE: subsys/psx/lib/psxdll/unistd/access.c
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* PURPOSE: Determine accessibility of a file
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* PROGRAMMER: KJK::Hyperion <noog@libero.it>
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* UPDATE HISTORY:
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* 13/02/2002: Created
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*/
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#include <ddk/ntddk.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <psx/errno.h>
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int access(const char *path, int amode)
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{
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OBJECT_ATTRIBUTES oaFileAttribs;
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IO_STATUS_BLOCK isbStatus;
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ACCESS_MASK amDesiredAccess = 0;
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NTSTATUS nErrCode;
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HANDLE hFile;
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if(amode != F_OK)
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{
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if(amode && R_OK) amDesiredAccess |= GENERIC_READ;
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if(amode && W_OK) amDesiredAccess |= GENERIC_WRITE;
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if(amode && X_OK) amDesiredAccess |= GENERIC_EXECUTE;
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}
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nErrCode = NtCreateFile
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(
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&hFile,
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amDesiredAccess,
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&oaFileAttribs,
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&isbStatus,
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0,
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0,
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FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
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FILE_OPEN,
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0,
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0,
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0
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);
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if(NT_SUCCESS(nErrCode))
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{
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NtClose(hFile);
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return (0);
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}
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errno = __status_to_errno(nErrCode);
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return (-1);
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}
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/* EOF */
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