34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
/*
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* Copyright (c) 2011, 2012, 2013, 2014, 2015 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* stdio_ext/__fwriting.c
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* Returns whether the last operation was a write or FILE is write only.
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*/
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#include <stdio.h>
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#include <stdio_ext.h>
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int __fwriting(FILE* fp)
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{
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int result = 0;
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flockfile(fp);
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if ( fp->flags & _FILE_LAST_WRITE )
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result = 1;
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if ( (fp->flags & _FILE_WRITABLE) && !(fp->flags & _FILE_READABLE) )
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result = 1;
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funlockfile(fp);
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return result;
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}
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