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43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/* Generic version of preadv2.
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Copyright (C) 2017-2018 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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <unistd.h>
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#include <sys/uio.h>
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#ifndef __OFF_T_MATCHES_OFF64_T
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/* Since we define no flags for preadv2 just route to preadv. */
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ssize_t
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preadv2 (int fd, const struct iovec *vector, int count, off_t offset,
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int flags)
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{
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if (flags != 0)
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{
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__set_errno (ENOTSUP);
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return -1;
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}
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if (offset == -1)
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return __readv (fd, vector, count);
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else
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return preadv (fd, vector, count, offset);
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}
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#endif
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