* include/sys/termios.h: Define TIOCMBIS and TIOCMBIC.

* fhandler.h (class fhandler_serial): Declare switch_modem_lines.
	* fhandler_serial.cc (fhandler_serial::switch_modem_lines): New
	static function to set or clear DTR and/or RTS.
	(fhandler_serial::ioctl): Use switch_modem_lines for TIOCMSET
	and new TIOCMBIS and TIOCMBIC.
	* include/cygwin/version.h: Bump API minor number.

winsup/cygwin/ChangeLog

@@ -1,3 +1,13 @@
+2005-08-02  Yitzchak Scott-Thoennes  <sthoenna@efn.org>
+
+	* include/sys/termios.h: Define TIOCMBIS and TIOCMBIC.
+	* fhandler.h (class fhandler_serial): Declare switch_modem_lines.
+	* fhandler_serial.cc (fhandler_serial::switch_modem_lines): New
+	static function to set or clear DTR and/or RTS.
+	(fhandler_serial::ioctl): Use switch_modem_lines for TIOCMSET
+	and new TIOCMBIS and TIOCMBIC.
+	* include/cygwin/version.h: Bump API minor number.
+
 2005-07-29  Christopher Faylor  <cgf@timesys.com>
 
 	* fhandler_disk_file.cc (fhandler_base::pread): Don't move file offset

winsup/cygwin/fhandler.h

@@ -722,6 +722,7 @@ class fhandler_serial: public fhandler_base
   int tcdrain ();
   int tcflow (int);
   int ioctl (unsigned int cmd, void *);
+  int switch_modem_lines (int set, int clr);
   int tcsetattr (int a, const struct termios *t);
   int tcgetattr (struct termios *t);
   _off64_t lseek (_off64_t, int) { return 0; }

winsup/cygwin/fhandler_serial.cc

@@ -376,6 +376,56 @@ fhandler_serial::tcflow (int action)
 }
 
 
+/* switch_modem_lines: set or clear RTS and/or DTR */
+int
+fhandler_serial::switch_modem_lines (int set, int clr)
+{
+  int res = 0;
+
+  if (set & TIOCM_RTS)
+    {
+      if (EscapeCommFunction (get_handle (), SETRTS))
+        rts = TIOCM_RTS;
+      else
+        {
+          __seterrno ();
+          res = -1;
+        }
+    }
+  else if (clr & TIOCM_RTS)
+    {
+      if (EscapeCommFunction (get_handle (), CLRRTS))
+        rts = 0;
+      else
+        {
+          __seterrno ();
+          res = -1;
+        }
+    }
+  if (set & TIOCM_DTR)
+    {
+      if (EscapeCommFunction (get_handle (), SETDTR))
+        rts = TIOCM_DTR;
+      else
+        {
+          __seterrno ();
+          res = -1;
+        }
+    }
+  else if (clr & TIOCM_DTR)
+    {
+      if (EscapeCommFunction (get_handle (), CLRDTR))
+        rts = 0;
+      else
+        {
+          __seterrno ();
+          res = -1;
+        }
+    }
+
+  return res;
+}
+
 /* ioctl: */
 int
 fhandler_serial::ioctl (unsigned int cmd, void *buffer)
@@ -432,44 +482,17 @@ fhandler_serial::ioctl (unsigned int cmd, void *buffer)
 	  }
 	break;
       case TIOCMSET:
-	if (ipbuffer & TIOCM_RTS)
+        if (switch_modem_lines (ipbuffer, ~ipbuffer))
-	  {
+          res = -1;
-	    if (EscapeCommFunction (get_handle (), SETRTS))
-	      rts = TIOCM_RTS;
-	    else
-	      {
-		__seterrno ();
-		res = -1;
-	      }
-	  }
-	else
-	  {
-	    if (EscapeCommFunction (get_handle (), CLRRTS))
-	      rts = 0;
-	    else
-	      {
-		__seterrno ();
-		res = -1;
-	      }
-	  }
-	if (ipbuffer & TIOCM_DTR)
-	  {
-	    if (EscapeCommFunction (get_handle (), SETDTR))
-	      dtr = TIOCM_DTR;
-	    else
-	      {
-		__seterrno ();
-		res = -1;
-	      }
-	  }
-	else if (EscapeCommFunction (get_handle (), CLRDTR))
-	  dtr = 0;
-	else
-	  {
-	    __seterrno ();
-	    res = -1;
-	  }
 	break;
+      case TIOCMBIS:
+	if (switch_modem_lines (ipbuffer, 0))
+          res = -1;
+        break;
+      case TIOCMBIC:
+	if (switch_modem_lines (0, ipbuffer))
+          res = -1;
+        break;
       case TIOCCBRK:
 	if (ClearCommBreak (get_handle ()) == 0)
 	  {

winsup/cygwin/include/cygwin/version.h

@@ -262,12 +262,13 @@ details. */
       133: Export __getline, __getdelim.
       134: Export getline, getdelim.
       135: Export pread, pwrite
+      136: Add TIOCMBIS/TIOCMBIC ioctl codes.
      */
 
      /* Note that we forgot to bump the api for ualarm, strtoll, strtoull */
 
 #define CYGWIN_VERSION_API_MAJOR 0
-#define CYGWIN_VERSION_API_MINOR 135
+#define CYGWIN_VERSION_API_MINOR 136
 
      /* There is also a compatibity version number associated with the
 	shared memory regions.  It is incremented when incompatible

winsup/cygwin/include/sys/termios.h

@@ -1,6 +1,6 @@
 /* sys/termios.h
 
-   Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc.
+   Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005 Red Hat, Inc.
 
 This file is part of Cygwin.
 
@@ -14,6 +14,8 @@ details. */
 #define _SYS_TERMIOS_H
 
 #define	TIOCMGET	0x5415
+#define	TIOCMBIS	0x5416
+#define	TIOCMBIC	0x5417
 #define	TIOCMSET	0x5418
 #define	TIOCINQ		0x541B