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-rw-r--r--apt-pkg/contrib/cdromutl.cc28
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)