1 files changed, 105 insertions, 0 deletions
diff --git a/mit-pthreads/stdio/funopen.c b/mit-pthreads/stdio/funopen.c
new file mode 100644
index 00000000000..f8b37ed0ae4
--- /dev/null
+++ b/mit-pthreads/stdio/funopen.c
@@ -0,0 +1,105 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * Copyright (c) 1993, 1994 Chris Provenzano. 
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+/*static char *sccsid = "from: @(#)funopen.c	5.2 (Berkeley) 2/5/91";*/
+static char *rcsid = "$Id$";
+#endif /* LIBC_SCCS and not lint */
+
+#include <pthread.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <errno.h>
+#include "local.h"
+
+FILE *
+funopen(cookie, readfn, writefn, seekfn, closefn)
+	const void *cookie;
+	int (*readfn)(), (*writefn)();
+#if __STDC__
+	fpos_t (*seekfn)(void *cookie, fpos_t off, int whence);
+#else
+	fpos_t (*seekfn)();
+#endif
+	int (*closefn)();
+{
+	struct fd_ops *fd_ops;
+	char *flags;
+	FILE *fp;
+	int fd;
+
+	if (readfn == NULL) {
+		if (writefn == NULL) {		/* illegal */
+			errno = EINVAL;
+			return (NULL);
+		} else
+			flags = "w";		/* write only */
+	} else {
+		if (writefn == NULL)
+			flags = "r";		/* read only */
+		else
+			flags = "r+";		/* read-write */
+	}
+
+	if (fd_ops = (struct fd_ops*)malloc(sizeof(struct fd_ops))) {
+		if ((fd = fd_allocate()) >= OK) {
+
+			/* Set functions */
+			fd_ops->seek = (off_t(*)())seekfn;
+			fd_ops->read = (pthread_ssize_t(*)())readfn;
+			fd_ops->write = (pthread_ssize_t(*)())writefn;
+			fd_ops->close = closefn;
+			fd_ops->use_kfds = 2;
+
+			/* Alloc space for funtion pointer table */
+			fd_table[fd]->type = FD_HALF_DUPLEX;
+			fd_table[fd]->ops = fd_ops;
+			fd_table[fd]->flags = O_RDWR;
+	
+			/* Save the cookie, it's important */
+			fd_table[fd]->fd.ptr = (void *)cookie;
+
+			if (fp = fdopen(fd, flags))
+				return(fp);
+			
+			fd_free(fd);
+		}
+		free(fd_ops);
+	}
+	return(NULL);
+}