X-Git-Url: http://git.hcoop.net/bpt/emacs.git/blobdiff_plain/6baf66d53bbedd85a443e0d69d1f4311a93f0677..0877d0dc24ee792b9b14592869ea1aa0934aee58:/src/term.c

diff --git a/src/term.c b/src/term.c
index 578c701858..d76562bb4d 100644
--- a/src/term.c
+++ b/src/term.c
@@ -1,6 +1,6 @@
 /* Terminal control module for terminals described by TERMCAP
-   Copyright (C) 1985-1987, 1993-1995, 1998, 2000-2012
-                 Free Software Foundation, Inc.
+   Copyright (C) 1985-1987, 1993-1995, 1998, 2000-2013 Free Software
+   Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -20,8 +20,9 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* New redisplay, TTY faces by Gerd Moellmann <gerd@gnu.org>.  */
 
 #include <config.h>
-#include <stdio.h>
 #include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
 #include <sys/file.h>
 #include <sys/time.h>
 #include <unistd.h>
@@ -55,14 +56,6 @@ static int been_here = -1;
 #include "xterm.h"
 #endif
 
-#ifndef O_RDWR
-#define O_RDWR 2
-#endif
-
-#ifndef O_NOCTTY
-#define O_NOCTTY 0
-#endif
-
 /* The name of the default console device.  */
 #ifdef WINDOWSNT
 #define DEV_TTY  "CONOUT$"
@@ -960,8 +953,8 @@ tty_ins_del_lines (struct frame *f, int vpos, int n)
   const char *single = n > 0 ? tty->TS_ins_line : tty->TS_del_line;
   const char *scroll = n > 0 ? tty->TS_rev_scroll : tty->TS_fwd_scroll;
 
-  register int i = n > 0 ? n : -n;
-  register char *buf;
+  int i = eabs (n);
+  char *buf;
 
   /* If the lines below the insertion are being pushed
      into the end of the window, this is the same as clearing;
@@ -2989,22 +2982,18 @@ init_tty (const char *name, const char *terminal_type, int must_succeed)
   set_tty_hooks (terminal);
 
   {
-    int fd;
+    /* Open the terminal device.  */
     FILE *file;
 
-#ifdef O_IGNORE_CTTY
-    if (!ctty)
-      /* Open the terminal device.  Don't recognize it as our
-         controlling terminal, and don't make it the controlling tty
-         if we don't have one at the moment.  */
-      fd = emacs_open (name, O_RDWR | O_IGNORE_CTTY | O_NOCTTY, 0);
-    else
-#endif /* O_IGNORE_CTTY */
-      /* Alas, O_IGNORE_CTTY is a GNU extension that seems to be only
-         defined on Hurd.  On other systems, we need to explicitly
-         dissociate ourselves from the controlling tty when we want to
-         open a frame on the same terminal.  */
-      fd = emacs_open (name, O_RDWR | O_NOCTTY, 0);
+    /* If !ctty, don't recognize it as our controlling terminal, and
+       don't make it the controlling tty if we don't have one now.
+
+       Alas, O_IGNORE_CTTY is a GNU extension that seems to be only
+       defined on Hurd.  On other systems, we need to explicitly
+       dissociate ourselves from the controlling tty when we want to
+       open a frame on the same terminal.  */
+    int flags = O_RDWR | O_NOCTTY | (ctty ? 0 : O_IGNORE_CTTY);
+    int fd = emacs_open (name, flags, 0);
 
     tty->name = xstrdup (name);
     terminal->name = xstrdup (name);
@@ -3023,10 +3012,8 @@ init_tty (const char *name, const char *terminal_type, int must_succeed)
                      name);
       }
 
-#ifndef O_IGNORE_CTTY
-    if (!ctty)
+    if (!O_IGNORE_CTTY && !ctty)
       dissociate_if_controlling_tty (fd);
-#endif
 
     file = fdopen (fd, "w+");
     tty->input = file;
@@ -3375,10 +3362,6 @@ use the Bourne shell command `TERM=... export TERM' (C-shell:\n\
     = tty->TS_delete_mode && tty->TS_insert_mode
     && !strcmp (tty->TS_delete_mode, tty->TS_insert_mode);
 
-  tty->se_is_so = (tty->TS_standout_mode
-              && tty->TS_end_standout_mode
-              && !strcmp (tty->TS_standout_mode, tty->TS_end_standout_mode));
-
   UseTabs (tty) = tabs_safe_p (fileno (tty->input)) && TabWidth (tty) == 8;
 
   terminal->scroll_region_ok