windows-nt/Source/XPSP1/NT/base/subsys/posix/client/dllext.c

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
dllext.c
Abstract:
Client implementation of C Language Extensions (Chapter 8 of 1003.1)
Author:
Ellen Aycock-Wright (ellena) 15-Oct-1991
Revision History:
--*/
#include <stdio.h>
#include <fcntl.h>
#include "psxdll.h"
extern FILE *_getstream(void);
int
__cdecl
fileno(FILE *stream)
{
return(stream->_file);
}
#if 0
FILE *
fdopen(int fildes, const char *type)
{
FILE *stream;
int mode;
int streamflag = 0;
//
// XXX.mjb: we need fcntl to check modes and validity of fildes
//
if (NULL == (stream = _getstream())) {
return NULL;
}
switch (*type) {
case 'r':
mode = O_RDONLY;
streamflag |= _IOREAD;
break;
case 'w':
mode = O_WRONLY;
streamflag |= _IOWRT;
break;
case 'a':
mode = O_WRONLY | O_APPEND;
streamflag |= _IOWRT;
// XXX.mjb: should be _IOWRT | _IOAPPEND;
break;
default:
errno = EINVAL;
return NULL;
}
switch (*++type) {
case '\0':
break;
case '+':
mode |= O_RDWR;
mode &= ~(O_RDONLY | O_WRONLY);
streamflag |= _IOWRT;
streamflag &= (_IOREAD | _IOWRT);
break;
default:
errno = EINVAL;
return NULL;
}
stream->_flag = streamflag;
stream->_cnt = 0;
stream->_base = stream->_ptr = NULL;
stream->_file = fildes;
return stream;
}
#endif