diff options
| author | Michael Vogt <mvo@debian.org> | 2014-04-30 17:04:29 +0200 |
|---|---|---|
| committer | Michael Vogt <mvo@debian.org> | 2014-06-12 08:43:44 +0200 |
| commit | b2cde5777fd9ab41d1b9fe5ce91196c0d3e8227d (patch) | |
| tree | 176e035b176bf77b26224daeb2f2f00426aaa2da /apt-pkg/deb | |
| parent | bf5a35614195aadcb3175e2617b693cd865dd640 (diff) | |
Only do openpty() if both stdin/stdout are terminals
Closes: 746434
Diffstat (limited to 'apt-pkg/deb')
| -rw-r--r-- | apt-pkg/deb/dpkgpm.cc | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index c52b83c6e..e410594df 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -1053,14 +1053,15 @@ void pkgDPkgPM::StartPtyMagic() } // setup the pty and stuff - struct winsize win; + struct winsize win; - // if tcgetattr does not return zero there was a error - // and we do not do any pty magic + // if tcgetattr for both stdin/stdout returns 0 (no error) + // we do the pty magic _error->PushToStack(); - if (tcgetattr(STDOUT_FILENO, &d->tt) == 0) + if (tcgetattr(STDIN_FILENO, &d->tt) == 0 && + tcgetattr(STDOUT_FILENO, &d->tt) == 0) { - if (ioctl(1, TIOCGWINSZ, (char *)&win) < 0) + if (ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&win) < 0) { _error->Errno("ioctl", _("ioctl(TIOCGWINSZ) failed")); } else if (openpty(&d->master, &d->slave, NULL, &d->tt, &win) < 0) |