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-rw-r--r--apt-pkg/deb/dpkgpm.cc51
-rw-r--r--debian/changelog8
2 files changed, 35 insertions, 24 deletions
diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index f787f365e..ab71d4e96 100644
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -809,32 +809,35 @@ bool pkgDPkgPM::Go(int OutStatusFd)
struct termios tt;
struct winsize win;
- int master;
- int slave;
+ int master = -1;
+ int slave = -1;
- // FIXME: setup sensible signal handling (*ick*)
- tcgetattr(0, &tt);
- ioctl(0, TIOCGWINSZ, (char *)&win);
- if (openpty(&master, &slave, NULL, &tt, &win) < 0)
+ // if tcgetattr does not return zero there was a error
+ // and we do not do any pty magic
+ if (tcgetattr(0, &tt) == 0)
{
- const char *s = _("Can not write log, openpty() "
- "failed (/dev/pts not mounted?)\n");
- fprintf(stderr, "%s",s);
- fprintf(term_out, "%s",s);
- master = slave = -1;
- } else {
- struct termios rtt;
- rtt = tt;
- cfmakeraw(&rtt);
- rtt.c_lflag &= ~ECHO;
- // block SIGTTOU during tcsetattr to prevent a hang if
- // the process is a member of the background process group
- // http://www.opengroup.org/onlinepubs/000095399/functions/tcsetattr.html
- sigemptyset(&sigmask);
- sigaddset(&sigmask, SIGTTOU);
- sigprocmask(SIG_BLOCK,&sigmask, &original_sigmask);
- tcsetattr(0, TCSAFLUSH, &rtt);
- sigprocmask(SIG_SETMASK, &original_sigmask, 0);
+ ioctl(0, TIOCGWINSZ, (char *)&win);
+ if (openpty(&master, &slave, NULL, &tt, &win) < 0)
+ {
+ const char *s = _("Can not write log, openpty() "
+ "failed (/dev/pts not mounted?)\n");
+ fprintf(stderr, "%s",s);
+ fprintf(term_out, "%s",s);
+ master = slave = -1;
+ } else {
+ struct termios rtt;
+ rtt = tt;
+ cfmakeraw(&rtt);
+ rtt.c_lflag &= ~ECHO;
+ // block SIGTTOU during tcsetattr to prevent a hang if
+ // the process is a member of the background process group
+ // http://www.opengroup.org/onlinepubs/000095399/functions/tcsetattr.html
+ sigemptyset(&sigmask);
+ sigaddset(&sigmask, SIGTTOU);
+ sigprocmask(SIG_BLOCK,&sigmask, &original_sigmask);
+ tcsetattr(0, TCSAFLUSH, &rtt);
+ sigprocmask(SIG_SETMASK, &original_sigmask, 0);
+ }
}
// Fork dpkg
diff --git a/debian/changelog b/debian/changelog
index 6692191d1..a27f958b9 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+apt (0.7.22.4) unstable; urgency=low
+
+ * apt-pkg/deb/dpkgpm.cc:
+ - when tcgetattr() returns non-zero skip all pty magic
+ (thanks to Simon Richter, closes: #509866)
+
+ -- Michael Vogt <michael.vogt@ubuntu.com> Mon, 31 Aug 2009 11:08:03 +0200
+
apt (0.7.22.3) UNRELEASED; urgency=low
[ Eugene V. Lyubimkin ]