1bb64ec48f
* lib/mes/write.c: New file. * build-aux/configure-lib.sh (libc_mini_SOURCES): Add it. (libc_mini_shared_SOURCES): New variable. (libc_mini_SOURCES, libmes_SOURCES): Use it. (libmes_SOURCES): Add lib/linux/lseek.c, lib/posix/write.c. (libc_tcc_SOURCES): Remove lib/linux/lseek.c. * lib/posix/write.c (write): Correct for read buffer. * lib/stdio/fwrite.c (fwrite): Remove read buffer correction. * simple.sh: Update.
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* GNU Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mes/lib.h>
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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ssize_t
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write (int filedes, void const *buffer, size_t size)
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{
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size_t skip = __buffered_read_clear (filedes);
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if (skip)
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lseek (filedes, -skip, SEEK_CUR);
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int r = _write (filedes, buffer, size);
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if (r < 0)
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{
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errno = -r;
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r = -1;
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}
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else
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errno = 0;
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return r;
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}
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