45 lines
2.5 KiB
C
45 lines
2.5 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=8 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program 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 GNU │
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│ 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 this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/stdio/internal.h"
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#include "libc/stdio/stdio.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/errfuns.h"
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/**
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* Allocates stream object for already-opened file descriptor.
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*
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* @param fd existing file descriptor or -1 for plain old buffer
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* @param mode is passed to fopenflags()
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* @return new stream or NULL w/ errno
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* @error ENOMEM
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*/
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FILE *fdopen(int fd, const char *mode) {
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FILE *res;
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if ((res = fmemopen(NULL, BUFSIZ, mode))) {
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res->fd = fd;
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res->reader = freadbuf;
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res->writer = fwritebuf;
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if ((res->iomode & O_ACCMODE) != O_RDONLY) {
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_fflushregister(res);
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}
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}
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return res;
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}
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