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70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
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/* Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <hurd/fd.h>
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#include <fcntl.h>
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#include <hurd/io.h>
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/* Defined in fopen.c. */
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extern int EXFUN(__getmode, (CONST char *mode, __io_mode *mptr));
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/* Open a new stream on a given system file descriptor. */
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FILE *
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DEFUN(fdopen, (fd, mode), int fd AND CONST char *mode)
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{
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FILE *stream;
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__io_mode m;
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struct hurd_fd *d;
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error_t err;
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int openmodes;
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if (!__getmode (mode, &m))
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return NULL;
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HURD_CRITICAL_BEGIN;
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d = _hurd_fd_get (fd);
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if (d == NULL)
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err = EBADF;
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else
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err = HURD_FD_PORT_USE (d, __io_get_openmodes (port, &openmodes));
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HURD_CRITICAL_END;
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if (err)
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return __hurd_dfail (fd, err), NULL;
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/* Check the access mode. */
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if ((m.__read && !(openmodes & O_READ)) ||
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(m.__write && !(openmodes & O_WRITE)))
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{
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errno = EBADF;
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return NULL;
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}
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stream = __newstream ();
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if (stream == NULL)
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return NULL;
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stream->__cookie = d;
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stream->__mode = m;
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return stream;
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}
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