Vendor import of OpenSSH 3.3.

1 files changed, 73 insertions, 0 deletions

diff --git a/crypto/openssh/msg.c b/crypto/openssh/msg.c
new file mode 100644
index 0000000..103aed2
--- /dev/null
+++ b/crypto/openssh/msg.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2002 Markus Friedl.  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 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.
+ */
+#include "includes.h"
+RCSID("$OpenBSD: msg.c,v 1.2 2002/06/19 00:27:55 deraadt Exp $");
+
+#include "buffer.h"
+#include "getput.h"
+#include "log.h"
+#include "atomicio.h"
+#include "msg.h"
+
+void
+msg_send(int fd, u_char type, Buffer *m)
+{
+	u_char buf[5];
+	u_int mlen = buffer_len(m);
+
+	debug3("msg_send: type %d", type);
+
+	PUT_32BIT(buf, mlen + 1);
+	buf[4] = type;		/* 1st byte of payload is mesg-type */
+	if (atomicio(write, fd, buf, sizeof(buf)) != sizeof(buf))
+		fatal("msg_send: write");
+	if (atomicio(write, fd, buffer_ptr(m), mlen) != mlen)
+		fatal("msg_send: write");
+}
+
+int
+msg_recv(int fd, Buffer *m)
+{
+	u_char buf[4];
+	ssize_t res;
+	u_int msg_len;
+
+	debug3("msg_recv entering");
+
+	res = atomicio(read, fd, buf, sizeof(buf));
+	if (res != sizeof(buf)) {
+		if (res == 0)
+			return -1;
+		fatal("msg_recv: read: header %d", res);
+	}
+	msg_len = GET_32BIT(buf);
+	if (msg_len > 256 * 1024)
+		fatal("msg_recv: read: bad msg_len %d", msg_len);
+	buffer_clear(m);
+	buffer_append_space(m, msg_len);
+	res = atomicio(read, fd, buffer_ptr(m), msg_len);
+	if (res != msg_len)
+		fatal("msg_recv: read: %ld != msg_len", (long)res);
+	return 0;
+}