diff -urN cui85/term.c cui86/term.c
--- cui85/term.c	Sun Mar 30 22:00:00 2014
+++ cui86/term.c	Sun Mar 30 23:00:00 2014
@@ -1,3 +1,5 @@
+#define _XOPEN_SOURCE 600
+
 #include "term.h"
 #include "handler.h"
 #include "fill.h"
@@ -9,6 +11,7 @@
 #include <string.h>
 #include <ctype.h>
 #include <unistd.h>
+#include <fcntl.h>
 
 #define UPDATE_FLG	(1<<7)
 
@@ -384,34 +387,29 @@
 
 #define TIMEOUT_MSEC	(3*1000)
 
-static void
+static int
 boot_sh(cui obj)
 {
-	cui_terminal p = (cui_terminal)obj;
-	int pipe_to_sh[2], pipe_from_sh[2];
+	int master, slave;
 	int ret;
+	char *name;
 
-	if(pipe(pipe_to_sh) < 0) ERR("pipe");
-	if(pipe(pipe_from_sh) < 0) ERR("pipe");
+	if((master = posix_openpt(O_RDWR)) < 0) ERR("posix_openpt");
 	if((ret = fork()) < 0) ERR("fork");
-	if(ret == 0){ /* child */
-		setsid();
-		close(pipe_to_sh[1]);
-		close(pipe_from_sh[0]);
-		dup2(pipe_to_sh[0] ,0);
-		dup2(pipe_from_sh[1] ,1);
-		dup2(pipe_from_sh[1] ,2);
-		close(pipe_to_sh[0]);
-		close(pipe_from_sh[1]);
-
-		execl("/bin/sh", "/bin/sh", "-i", (char *)NULL);
-		exit(0);
-	}
-	/* parent */
-	close(pipe_to_sh[0]);
-	close(pipe_from_sh[1]);
-	p->pipe_r = pipe_from_sh[0];
-	p->pipe_w = pipe_to_sh[1];
+	if(ret != 0) return master; /* parent */
+
+	/* child */
+	setsid();
+	if(grantpt(master) < 0) ERR("grantpt");
+	if(unlockpt(master) < 0) ERR("unlockpt");
+	if((name = ptsname(master)) == NULL) ERR("ptsname");
+	if((slave = open(name, O_RDWR)) < 0) ERR("open");
+	dup2(slave, 0);
+	dup2(slave, 1);
+	dup2(slave, 2);
+	execl("/bin/sh", "/bin/sh", "-i", (char *)NULL);
+	exit(0);
+	return 0; /* not reach */
 }
 
 cui
@@ -428,7 +426,6 @@
 	cui_terminal p = (cui_terminal)obj;
 	int evts;
 
-	cui_dbg("cui_terminal_init\n");
 	cui_base_init(obj, parent, x, y, w, h);
 	obj->flags |= CUI_FLG_CAN_FOCUS;
 
@@ -439,8 +436,7 @@
 	p->fill_r = cui_fill_new(obj, w-1, 0, 1, h-1, "|", CUI_ATTR_NORMAL);
 	p->rszbox = cui_rszbox_new(obj);
 
-	boot_sh(obj);
-	cui_dbg("pipr_r=%d , pipe_w=%d\n", p->pipe_r, p->pipe_w);
+	p->pipe_r = p->pipe_w = boot_sh(obj);
 
 	evts = CUI_EVT_DRAW|CUI_EVT_KEY|CUI_EVT_RESIZE|CUI_EVT_TIMER|CUI_EVT_READABLE;
 	cui_bind(obj, evts, cui_terminal_hdr, NULL);