From e8567098a4eaa81306effeaef430d9d74f603f7a Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Fri, 12 Jul 2013 22:21:42 +0100
Subject: [PATCH] Add support for Cgywin, apparently it is enough just to open
 the tty again in the server and fd passing is not necessary. Needs some
 ifdefs unfortunately but no way around that and some of them can go next time
 we're willing to do a protocol bump. Patch from J Raynor jxraynor at gmail
 dot com.

---
 client.c        | 5 +++++
 compat.h        | 5 +++++
 server-client.c | 5 ++++-
 tmux.h          | 4 ++++
 4 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/client.c b/client.c
index 691ace31..b9e3b30a 100644
--- a/client.c
+++ b/client.c
@@ -328,8 +328,13 @@ client_send_identify(int flags)
 	    strlcpy(data.term, term, sizeof data.term) >= sizeof data.term)
 		*data.term = '\0';
 
+#ifdef __CYGWIN__
+	snprintf(&data.ttyname, sizeof data.ttyname, "%s",
+	    ttyname(STDIN_FILENO));
+#else
 	if ((fd = dup(STDIN_FILENO)) == -1)
 		fatal("dup failed");
+#endif
 	imsg_compose(&client_ibuf,
 	    MSG_IDENTIFY, PROTOCOL_VERSION, -1, fd, &data, sizeof data);
 	client_update_event();
diff --git a/compat.h b/compat.h
index d3973797..b84ff400 100644
--- a/compat.h
+++ b/compat.h
@@ -30,6 +30,10 @@
 #define __packed __attribute__ ((__packed__))
 #endif
 
+#ifndef ECHOPRT
+#define ECHOPRT 0
+#endif
+
 #ifndef HAVE_BSD_TYPES
 typedef uint8_t u_int8_t;
 typedef uint16_t u_int16_t;
@@ -210,6 +214,7 @@ int	 	 daemon(int, int);
 
 #ifndef HAVE_B64_NTOP
 /* b64_ntop.c */
+#undef b64_ntop /* for Cygwin */
 int		 b64_ntop(const char *, size_t, char *, size_t);
 #endif
 
diff --git a/server-client.c b/server-client.c
index 01616cbf..5923eb0e 100644
--- a/server-client.c
+++ b/server-client.c
@@ -825,9 +825,12 @@ server_client_msg_dispatch(struct client *c)
 		case MSG_IDENTIFY:
 			if (datalen != sizeof identifydata)
 				fatalx("bad MSG_IDENTIFY size");
+			memcpy(&identifydata, imsg.data, sizeof identifydata);
+#ifdef __CYGWIN__
+			imsg.fd = open(identifydata.ttyname, O_RDWR|O_NOCTTY);
+#endif
 			if (imsg.fd == -1)
 				fatalx("MSG_IDENTIFY missing fd");
-			memcpy(&identifydata, imsg.data, sizeof identifydata);
 
 			server_client_msg_identify(c, &identifydata, imsg.fd);
 			break;
diff --git a/tmux.h b/tmux.h
index eb53d3b4..cc1c79e8 100644
--- a/tmux.h
+++ b/tmux.h
@@ -471,6 +471,10 @@ struct msg_identify_data {
 
 	char		term[TERMINAL_LENGTH];
 
+#ifdef __CYGWIN__
+	char		ttyname[TTY_NAME_MAX];
+#endif
+
 #define IDENTIFY_UTF8 0x1
 #define IDENTIFY_256COLOURS 0x2
 /* 0x4 unused */