| 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 | +} |