diff options
| author | Michael Vogt <mvo@debian.org> | 2014-04-30 17:04:29 +0200 |
|---|---|---|
| committer | Michael Vogt <mvo@debian.org> | 2014-04-30 17:04:29 +0200 |
| commit | a11f6c973bc0dc226d8953e3edb6333d526c3143 (patch) | |
| tree | df7c21f028089b99d63289d784ee5bd23d54d380 /apt-pkg | |
| parent | 3163087b04ca5c297a7c98c018ba5c30e850a11e (diff) | |
Only do openpty() if both stdin/stdout are terminals
Closes: 746434
Diffstat (limited to 'apt-pkg')
| -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) |