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authorMichael Vogt <mvo@debian.org>2014-01-06 07:51:45 +0100
committerMichael Vogt <mvo@debian.org>2014-01-06 07:51:45 +0100
commit1b4560fec66a6e7b2dff9aaa19095fb8423f69a0 (patch)
tree7fb2b63e31f356ef87af4699ba87b4f1443f508c /apt-pkg/contrib/fileutl.cc
parent81d183681aea972fddd453d62109f8ccda3f447a (diff)
parent74d4bb26e09146b9d5f01889a676dc58ff5d63cd (diff)
Merge branch 'debian/sid' into feature/apt-manpage
Diffstat (limited to 'apt-pkg/contrib/fileutl.cc')
-rw-r--r--apt-pkg/contrib/fileutl.cc46
1 files changed, 38 insertions, 8 deletions
diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index d2be276c7..efbf7aaf4 100644
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -760,16 +760,13 @@ bool WaitFd(int Fd,bool write,unsigned long timeout)
return true;
}
/*}}}*/
-// ExecFork - Magical fork that sanitizes the context before execing /*{{{*/
+// MergeKeepFdsFromConfiguration - Merge APT::Keep-Fds configuration /*{{{*/
// ---------------------------------------------------------------------
-/* This is used if you want to cleanse the environment for the forked
- child, it fixes up the important signals and nukes all of the fds,
- otherwise acts like normal fork. */
-pid_t ExecFork()
+/* This is used to merge the APT::Keep-Fds with the provided KeepFDs
+ * set.
+ */
+void MergeKeepFdsFromConfiguration(std::set<int> &KeepFDs)
{
- set<int> KeepFDs;
-
- // FIXME: remove looking at APT::Keep-Fds eventually, its a hack
Configuration::Item const *Opts = _config->Tree("APT::Keep-Fds");
if (Opts != 0 && Opts->Child != 0)
{
@@ -782,6 +779,19 @@ pid_t ExecFork()
KeepFDs.insert(fd);
}
}
+}
+ /*}}}*/
+// ExecFork - Magical fork that sanitizes the context before execing /*{{{*/
+// ---------------------------------------------------------------------
+/* This is used if you want to cleanse the environment for the forked
+ child, it fixes up the important signals and nukes all of the fds,
+ otherwise acts like normal fork. */
+pid_t ExecFork()
+{
+ set<int> KeepFDs;
+ // we need to merge the Keep-Fds as external tools like
+ // debconf-apt-progress use it
+ MergeKeepFdsFromConfiguration(KeepFDs);
return ExecFork(KeepFDs);
}
@@ -1535,6 +1545,9 @@ bool FileFd::Skip(unsigned long long Over)
/* */
bool FileFd::Truncate(unsigned long long To)
{
+ // truncating /dev/null is always successful - as we get an error otherwise
+ if (To == 0 && FileName == "/dev/null")
+ return true;
#if defined HAVE_ZLIB || defined HAVE_BZ2
if (d != NULL && (d->gz != NULL || d->bz2 != NULL))
return FileFdError("Truncating compressed files is not implemented (%s)", FileName.c_str());
@@ -1814,3 +1827,20 @@ std::vector<std::string> Glob(std::string const &pattern, int flags)
return result;
}
/*}}}*/
+
+std::string GetTempDir()
+{
+ const char *tmpdir = getenv("TMPDIR");
+
+#ifdef P_tmpdir
+ if (!tmpdir)
+ tmpdir = P_tmpdir;
+#endif
+
+ // check that tmpdir is set and exists
+ struct stat st;
+ if (!tmpdir || strlen(tmpdir) == 0 || stat(tmpdir, &st) != 0)
+ tmpdir = "/tmp";
+
+ return string(tmpdir);
+}