1 files changed, 73 insertions, 0 deletions
diff --git a/login/openpty.c b/login/openpty.c
new file mode 100644
index 0000000000..12e82072bc
--- /dev/null
+++ b/login/openpty.c
@@ -0,0 +1,73 @@
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fcntl.h>
+#include <pty.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#include "pty-internal.h"
+
+int
+openpty (pmast, pslave, pname, tio, wins)
+     int *pmast;
+     int *pslave;
+     char *pname;
+     struct termios *tio;
+     struct winsize *wins;
+{
+  int pfd, tfd;
+  char name[PTYNAMELEN];
+
+  pfd = getpt ();
+  if (pfd == -1)
+    return -1;
+
+  if (grantpt (pfd))
+    goto bail;
+
+  if (unlockpt (pfd))
+    goto bail;
+
+  if (!ptsname_r (pfd, name, PTYNAMELEN))
+    goto bail;
+
+  tfd = open (name, O_RDWR);
+  if (tfd == -1)
+    goto bail;
+
+  /* XXX Should we ignore errors here?  */
+  if(tio)
+    tcsetattr (tfd, TCSAFLUSH, tio);
+  if (wins)
+    ioctl (tfd, TIOCSWINSZ, wins);
+
+  *pmast = pfd;
+  *pslave = tfd;
+  if (pname != NULL)
+    strcpy (pname, name);
+  return 0;
+
+bail:
+  close (pfd);
+  return -1;
+}