mdw@git.distorted.org.uk Git - termux-packages/blob - packages/socat/openpty.c.patch

   1 diff -N -u -r ../socat-1.7.2.4/openpty.c ./openpty.c
   2 --- ../socat-1.7.2.4/openpty.c  1970-01-01 01:00:00.000000000 +0100
   3 +++ ./openpty.c 2014-07-15 15:23:08.731170078 +0200
   4 @@ -0,0 +1,71 @@
   5 +/* Copyright (C) 1998, 1999, 2004 Free Software Foundation, Inc.
   6 +   This file is part of the GNU C Library.
   7 +   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
   8 +
   9 +   The GNU C Library is free software; you can redistribute it and/or
  10 +   modify it under the terms of the GNU Lesser General Public
  11 +   License as published by the Free Software Foundation; either
  12 +   version 2.1 of the License, or (at your option) any later version.
  13 +
  14 +   The GNU C Library is distributed in the hope that it will be useful,
  15 +   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17 +   Lesser General Public License for more details.
  18 +
  19 +   You should have received a copy of the GNU Lesser General Public
  20 +   License along with the GNU C Library; if not, write to the Free
  21 +   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  22 +   02111-1307 USA.  */
  23 +
  24 +#include <errno.h>
  25 +#include <fcntl.h>
  26 +#include <limits.h>
  27 +#include <stdlib.h>
  28 +#include <string.h>
  29 +#include <termios.h>
  30 +#include <unistd.h>
  31 +#include <sys/types.h>
  32 +#include <sys/ioctl.h>
  33 +
  34 +#define _PATH_DEVPTMX "/dev/ptmx"
  35 +
  36 +int openpty (int *amaster, int *aslave, char *name, struct termios *termp,
  37 +               struct winsize *winp)
  38 +{
  39 +       char buf[PATH_MAX];
  40 +       int master, slave;
  41 +
  42 +       master = open(_PATH_DEVPTMX, O_RDWR);
  43 +       if (master == -1)
  44 +               return -1;
  45 +
  46 +       if (grantpt(master))
  47 +               goto fail;
  48 +
  49 +       if (unlockpt(master))
  50 +               goto fail;
  51 +
  52 +       if (ptsname_r(master, buf, sizeof buf))
  53 +               goto fail;
  54 +
  55 +       slave = open(buf, O_RDWR | O_NOCTTY);
  56 +       if (slave == -1)
  57 +               goto fail;
  58 +
  59 +       /* XXX Should we ignore errors here?  */
  60 +       if (termp)
  61 +               tcsetattr(slave, TCSAFLUSH, termp);
  62 +       if (winp)
  63 +               ioctl(slave, TIOCSWINSZ, winp);
  64 +
  65 +       *amaster = master;
  66 +       *aslave = slave;
  67 +       if (name != NULL)
  68 +               strcpy(name, buf);
  69 +
  70 +       return 0;
  71 +
  72 +fail:
  73 +       close(master);
  74 +       return -1;
  75 +}