35 lines
752 B
C
35 lines
752 B
C
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/* */
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/* Copyright (c) 1984,1985,1986,1987,1988,1989,1990 AT&T */
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/* All Rights Reserved */
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/* */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T. */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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/* */
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/*
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* This program tests whether fcntl exists on the system and
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* does what the shell requires it to do
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* Also, if R_OK is defined in <fcntl.h>, prints define R_OK_fcntl_h
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*/
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#ifdef _fcntl_
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# include <fcntl.h>
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#else
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# define F_DUPFD 0
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#endif
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main()
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{
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int fn;
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close(6);
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fn = fcntl(0, F_DUPFD, 6);
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if(fn < 6)
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printf("#define NOFCNTL\t1\n");
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#ifdef R_OK
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else
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printf("#define R_OK_fcntl_h\t1\n");
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#endif /* R_OK */
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}
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