70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
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/* @(#)fileluopen.c 1.19 10/11/06 Copyright 1986, 1995-2010 J. Schilling */
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/*
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* Copyright (c) 1986, 1995-2010 J. Schilling
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*/
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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#include "schilyio.h"
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/*
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* Note that because of a definition in schilyio.h we are using
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* fseeko()/ftello() instead of fseek()/ftell() if available.
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*/
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#ifndef O_NDELAY /* This is undefined on BeOS :-( */
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#define O_NDELAY 0
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#endif
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#ifndef O_CREAT
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#define O_CREAT 0
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#endif
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#ifndef O_TRUNC
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#define O_TRUNC 0
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#endif
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#ifndef O_EXCL
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#define O_EXCL 0
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#endif
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/*
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* fileluopen - open a stream for lun
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*/
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EXPORT FILE *
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fileluopen(f, mode)
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int f;
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const char *mode;
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{
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int omode = 0;
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int flag = 0;
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if (!_cvmod(mode, &omode, &flag))
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return ((FILE *)NULL);
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if (omode & (O_NDELAY|O_CREAT|O_TRUNC|O_EXCL)) {
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raisecond(_badmode, 0L);
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return ((FILE *)NULL);
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}
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#ifdef F_GETFD
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if (fcntl(f, F_GETFD, 0) < 0) {
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raisecond(_badfile, 0L);
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return ((FILE *)NULL);
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}
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#endif
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#ifdef O_APPEND
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if (omode & O_APPEND)
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lseek(f, (off_t)0, SEEK_END);
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#endif
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return (_fcons((FILE *)0, f, flag));
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}
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