1 files changed, 86 insertions, 0 deletions
diff --git a/usr/src/cmd/bhyve/sockstream.c b/usr/src/cmd/bhyve/sockstream.c
new file mode 100644
index 0000000000..b592bce9aa
--- /dev/null
+++ b/usr/src/cmd/bhyve/sockstream.c
@@ -0,0 +1,86 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2015 Nahanni Systems, Inc.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <errno.h>
+
+#include "sockstream.h"
+
+ssize_t
+stream_read(int fd, void *buf, ssize_t nbytes)
+{
+	uint8_t *p;
+	ssize_t len = 0;
+	ssize_t n;
+
+	p = buf;
+
+	while (len < nbytes) {
+		n = read(fd, p + len, nbytes - len);
+		if (n == 0)
+			break;
+
+		if (n < 0) {
+			if (errno == EINTR || errno == EAGAIN)
+				continue;
+			return (n);
+		}
+		len += n;
+	}
+	return (len);
+}
+
+ssize_t
+stream_write(int fd, const void *buf, ssize_t nbytes)
+{
+	const uint8_t *p;
+	ssize_t len = 0;
+	ssize_t n;
+
+	p = buf;
+
+	while (len < nbytes) {
+		n = write(fd, p + len, nbytes - len);
+		if (n == 0)
+			break;
+		if (n < 0) {
+			if (errno == EINTR || errno == EAGAIN)
+				continue;
+			return (n);
+		}
+		len += n;
+	}
+	return (len);
+}