diff options
| -rw-r--r-- | apt-pkg/contrib/cdromutl.cc | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/apt-pkg/contrib/cdromutl.cc b/apt-pkg/contrib/cdromutl.cc index 176cc2024..f850e08a5 100644 --- a/apt-pkg/contrib/cdromutl.cc +++ b/apt-pkg/contrib/cdromutl.cc @@ -74,7 +74,13 @@ bool IsMounted(string &Path) leave /etc/mtab inconsitant. We drop all messages this produces. */ bool UnmountCdrom(string Path) { - if (IsMounted(Path) == false) + // do not generate errors, even if the mountpoint does not exist + // the mountpoint might be auto-created by the mount command + // and a non-existing mountpoint is surely not mounted + _error->PushToStack(); + bool const mounted = IsMounted(Path); + _error->RevertToStack(); + if (mounted == false) return true; for (int i=0;i<3;i++) @@ -86,8 +92,9 @@ bool UnmountCdrom(string Path) if (Child == 0) { // Make all the fds /dev/null - for (int I = 0; I != 3; I++) - dup2(open("/dev/null",O_RDWR),I); + int const null_fd = open("/dev/null",O_RDWR); + for (int I = 0; I != 3; ++I) + dup2(null_fd, I); if (_config->Exists("Acquire::cdrom::"+Path+"::UMount") == true) { @@ -121,19 +128,24 @@ bool UnmountCdrom(string Path) /* We fork mount and drop all messages */ bool MountCdrom(string Path, string DeviceName) { - if (IsMounted(Path) == true) + // do not generate errors, even if the mountpoint does not exist + // the mountpoint might be auto-created by the mount command + _error->PushToStack(); + bool const mounted = IsMounted(Path); + _error->RevertToStack(); + if (mounted == true) return true; - + int Child = ExecFork(); // The child if (Child == 0) { // Make all the fds /dev/null - int null_fd = open("/dev/null",O_RDWR); - for (int I = 0; I != 3; I++) + int const null_fd = open("/dev/null",O_RDWR); + for (int I = 0; I != 3; ++I) dup2(null_fd, I); - + if (_config->Exists("Acquire::cdrom::"+Path+"::Mount") == true) { if (system(_config->Find("Acquire::cdrom::"+Path+"::Mount").c_str()) != 0) |