Put ssh back into the repository
Change-Id: I23324372188fa6ed3f93a32b84365f5df6367590
diff --git a/dispatch.c b/dispatch.c
new file mode 100644
index 0000000..64bb809
--- /dev/null
+++ b/dispatch.c
@@ -0,0 +1,104 @@
+/* $OpenBSD: dispatch.c,v 1.22 2008/10/31 15:05:34 stevesk Exp $ */
+/*
+ * Copyright (c) 2000 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"
+
+#include <sys/types.h>
+
+#include <signal.h>
+#include <stdarg.h>
+
+#include "ssh1.h"
+#include "ssh2.h"
+#include "log.h"
+#include "dispatch.h"
+#include "packet.h"
+#include "compat.h"
+
+#define DISPATCH_MAX 255
+
+dispatch_fn *dispatch[DISPATCH_MAX];
+
+void
+dispatch_protocol_error(int type, u_int32_t seq, void *ctxt)
+{
+ logit("dispatch_protocol_error: type %d seq %u", type, seq);
+ if (!compat20)
+ fatal("protocol error");
+ packet_start(SSH2_MSG_UNIMPLEMENTED);
+ packet_put_int(seq);
+ packet_send();
+ packet_write_wait();
+}
+void
+dispatch_protocol_ignore(int type, u_int32_t seq, void *ctxt)
+{
+ logit("dispatch_protocol_ignore: type %d seq %u", type, seq);
+}
+void
+dispatch_init(dispatch_fn *dflt)
+{
+ u_int i;
+ for (i = 0; i < DISPATCH_MAX; i++)
+ dispatch[i] = dflt;
+}
+void
+dispatch_range(u_int from, u_int to, dispatch_fn *fn)
+{
+ u_int i;
+
+ for (i = from; i <= to; i++) {
+ if (i >= DISPATCH_MAX)
+ break;
+ dispatch[i] = fn;
+ }
+}
+void
+dispatch_set(int type, dispatch_fn *fn)
+{
+ dispatch[type] = fn;
+}
+void
+dispatch_run(int mode, volatile sig_atomic_t *done, void *ctxt)
+{
+ for (;;) {
+ int type;
+ u_int32_t seqnr;
+
+ if (mode == DISPATCH_BLOCK) {
+ type = packet_read_seqnr(&seqnr);
+ } else {
+ type = packet_read_poll_seqnr(&seqnr);
+ if (type == SSH_MSG_NONE)
+ return;
+ }
+ if (type > 0 && type < DISPATCH_MAX && dispatch[type] != NULL)
+ (*dispatch[type])(type, seqnr, ctxt);
+ else
+ packet_disconnect("protocol error: rcvd type %d", type);
+ if (done != NULL && *done)
+ return;
+ }
+}