sortix--sortix/libc/stdio/fpipe.c

/*
 * Copyright (c) 2012 Jonas 'Sortie' Termansen.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * stdio/fpipe.c
 * Provides pipe(2) through the FILE interface.
 */

#include <stdio.h>
#include <unistd.h>

int fpipe(FILE* pipes[2])
{
	int pipefd[2];
	if ( pipe(pipefd) ) { return -1; }
	pipes[0] = fdopen(pipefd[0], "r");
	if ( !pipes[0] ) { close(pipefd[0]); close(pipefd[1]); return -1; }
	pipes[1] = fdopen(pipefd[1], "w");
	if ( !pipes[1] ) { fclose(pipes[0]); close(pipefd[1]); return -1; }
	return 0;
}