From 0d5ad358ae3bc80cbf226f5aef5790ca1e1f430c Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Wed, 18 Jun 2008 19:52:29 +0000
Subject: [PATCH] forkpty for Sun OS.

---
 GNUmakefile            |  6 ++--
 compat/forkpty-sunos.c | 65 ++++++++++++++++++++++++++++++++++++++++++
 tmux.h                 |  8 +++++-
 3 files changed, 75 insertions(+), 4 deletions(-)
 create mode 100644 compat/forkpty-sunos.c

diff --git a/GNUmakefile b/GNUmakefile
index 9085d307..8d5b659e 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -1,4 +1,4 @@
-# $Id: GNUmakefile,v 1.22 2008-06-18 19:36:27 nicm Exp $
+# $Id: GNUmakefile,v 1.23 2008-06-18 19:52:29 nicm Exp $
 
 .PHONY: clean
 
@@ -53,9 +53,9 @@ INSTALLMAN= install -g bin -o root -m 444
 
 ifeq ($(shell uname),SunOS)
 INCDIRS+= -Icompat
-SRCS+= compat/strtonum.c compat/daemon.c
+SRCS+= compat/strtonum.c compat/daemon.c compat/forkpty-sunos.c
 CFLAGS+= -DNO_STRTONUM -DNO_TREE_H -DNO_PATHS_H -DNO_SETPROCTITLE \
-	-DNO_DAEMON
+	-DNO_DAEMON -DNO_FORKPTY
 endif 
 
 ifeq ($(shell uname),Darwin)
diff --git a/compat/forkpty-sunos.c b/compat/forkpty-sunos.c
new file mode 100644
index 00000000..115807d8
--- /dev/null
+++ b/compat/forkpty-sunos.c
@@ -0,0 +1,65 @@
+/* $Id: forkpty-sunos.c,v 1.1 2008-06-18 19:52:29 nicm Exp $ */
+
+/*
+ * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <stdlib.h>
+
+#include "tmux.h"
+
+pid_t
+forkpty(int *master, int *slave,
+    char *name, struct termios *tio, struct winsize *ws)
+{
+	char   *path;
+
+	if ((*master = open("/dev/ptmx", O_RDWR)) == -1)
+		return (-1);
+	if (grantpt(*master) != 0)
+		goto out;
+	if (unlockpt(*master) != 0)
+		goto out;
+	
+	if ((path = ptsname(*master)) == NULL)
+		goto out;
+	if ((*slave = open(path, O_RDWR)) == -1)
+		goto out;
+	
+	if (ioctl(*slave, I_PUSH, "ptem") == -1)
+		goto out;
+	if (ioctl(*slave, I_PUSH, "ldterm") == -1)
+		goto out;
+
+	switch (pid = fork()) {
+	case -1:
+		goto out;
+	case 0:
+		close(*master);
+		return (0);
+	}
+
+	close(*slave);
+	return (pid);
+
+out:
+	if (*master != -1)
+		close(*master);
+	if (*slave != -1)
+		close(*slave);
+	return (-1);
+}
diff --git a/tmux.h b/tmux.h
index 93005d73..6efc6862 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1,4 +1,4 @@
-/* $Id: tmux.h,v 1.147 2008-06-18 19:36:27 nicm Exp $ */
+/* $Id: tmux.h,v 1.148 2008-06-18 19:52:29 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -765,6 +765,12 @@ size_t	 	 strlcat(char *, const char *, size_t);
 size_t	 	 daemon(int, int);
 #endif
 
+#ifdef NO_FORKPTY
+/* forkpty.c */
+pid_t		 forkpty(
+    		     int *, int *, char *, struct termios *, struct winsize *);
+#endif
+
 /* tmux.c */
 extern volatile sig_atomic_t sigwinch;
 extern volatile sig_atomic_t sigterm;