34 lines
1.1 KiB
C++
34 lines
1.1 KiB
C++
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
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This file is part of LibMaxsi.
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LibMaxsi is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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LibMaxsi is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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details.
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You should have received a copy of the GNU Lesser General Public License
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along with LibMaxsi. If not, see <http://www.gnu.org/licenses/>.
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fileno.cpp
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Returns the underlying file descriptor of a FILE if applicable.
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*******************************************************************************/
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#include <stdio.h>
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#include <errno.h>
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extern "C" int fileno(FILE* fp)
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{
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int result = fp->fileno_func ? fp->fileno_func(fp->user) : -1;
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if ( result < 0 ) { errno = EBADF; }
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return result;
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}
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