OpenSolaris Launch

1 files changed, 116 insertions, 0 deletions

diff --git a/usr/src/lib/libc/port/stdio/fdopen.c b/usr/src/lib/libc/port/stdio/fdopen.c
new file mode 100644
index 0000000000..38ed3af860
--- /dev/null
+++ b/usr/src/lib/libc/port/stdio/fdopen.c
@@ -0,0 +1,116 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+/*	Copyright (c) 1988 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+
+/*
+ * Unix routine to do an "fopen" on file descriptor
+ * The mode has to be repeated because you can't query its
+ * status
+ */
+
+#define	_LARGEFILE64_SOURCE 1
+
+#pragma weak fdopen = _fdopen
+
+#include <sys/feature_tests.h>
+
+#define	fdopen		_fdopen
+#if !defined(_LP64)
+#define	lseek64		_lseek64
+#endif
+
+#include "lint.h"
+#include <mtlib.h>
+#include "file64.h"
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <limits.h>
+#include <thread.h>
+#include <synch.h>
+#include "stdiom.h"
+#include <errno.h>
+#include <fcntl.h>
+
+FILE *
+fdopen(int fd, const char *type) /* associate file desc. with stream */
+{
+	/* iop doesn't need locking since this function is creating it */
+	FILE *iop;
+	char plus;
+	unsigned char flag;
+
+
+	/* Sets EBADF for bad fds */
+	if (fcntl(fd, F_GETFD) == -1)
+		return (NULL);
+
+#ifdef	_LP64
+	if ((iop = _findiop()) == 0) {
+		errno = ENOMEM;
+		return (NULL);
+	}
+	iop->_file = fd;
+#else
+	if (fd > UCHAR_MAX) {
+		errno = EMFILE;
+		return (NULL);
+	}
+	if ((iop = _findiop()) == 0) {
+		errno = ENOMEM;
+		return (NULL);
+	}
+	iop->_file = (unsigned char)fd;
+#endif	/*	_LP64	*/
+
+	switch (type[0]) {
+	default:
+		iop->_flag = 0; /* release iop */
+		errno = EINVAL;
+		return (NULL);
+	case 'r':
+		flag = _IOREAD;
+		break;
+	case 'a':
+		(void) lseek64(fd, (off64_t)0, SEEK_END);
+		/*FALLTHROUGH*/
+	case 'w':
+		flag = _IOWRT;
+		break;
+	}
+	if ((plus = type[1]) == 'b')	/* Unix ignores 'b' ANSI std */
+		plus = type[2];
+	if (plus == '+')
+		flag = _IORW;
+	iop->_flag = flag;
+
+	return (iop);
+}