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authorMichael Vogt <mvo@debian.org>2015-06-23 12:17:35 +0100
committerMichael Vogt <mvo@debian.org>2015-06-23 12:17:35 +0100
commit245dde96193702f7f51389d3583dee547f8ba366 (patch)
tree6cf8c191641c760bcc6a6c08fb0ff65d27e0cffd /apt-pkg/contrib/fileutl.cc
parent5530255b5f3ad7de2e23dfcb39ce325001126501 (diff)
parentc8a4ce6cbed57ae108dc955d4a850f9b129a0693 (diff)
Merge remote-tracking branch 'donkult/debian/experimental' into debian/experimental
Diffstat (limited to 'apt-pkg/contrib/fileutl.cc')
-rw-r--r--apt-pkg/contrib/fileutl.cc22
1 files changed, 21 insertions, 1 deletions
diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index 47033eadf..8ec868ec0 100644
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -800,8 +800,9 @@ pid_t ExecFork(std::set<int> KeepFDs)
signal(SIGCONT,SIG_DFL);
signal(SIGTSTP,SIG_DFL);
+ long ScOpenMax = sysconf(_SC_OPEN_MAX);
// Close all of our FDs - just in case
- for (int K = 3; K != sysconf(_SC_OPEN_MAX); K++)
+ for (int K = 3; K != ScOpenMax; K++)
{
if(KeepFDs.find(K) == KeepFDs.end())
fcntl(K,F_SETFD,FD_CLOEXEC);
@@ -874,6 +875,25 @@ bool StartsWithGPGClearTextSignature(string const &FileName)
return true;
}
/*}}}*/
+// ChangeOwnerAndPermissionOfFile - set file attributes to requested values /*{{{*/
+bool ChangeOwnerAndPermissionOfFile(char const * const requester, char const * const file, char const * const user, char const * const group, mode_t const mode)
+{
+ if (strcmp(file, "/dev/null") == 0)
+ return true;
+ bool Res = true;
+ if (getuid() == 0 && strlen(user) != 0 && strlen(group) != 0) // if we aren't root, we can't chown, so don't try it
+ {
+ // ensure the file is owned by root and has good permissions
+ struct passwd const * const pw = getpwnam(user);
+ struct group const * const gr = getgrnam(group);
+ if (pw != NULL && gr != NULL && chown(file, pw->pw_uid, gr->gr_gid) != 0)
+ Res &= _error->WarningE(requester, "chown to %s:%s of file %s failed", user, group, file);
+ }
+ if (chmod(file, mode) != 0)
+ Res &= _error->WarningE(requester, "chmod 0%o of file %s failed", mode, file);
+ return Res;
+}
+ /*}}}*/
class FileFdPrivate { /*{{{*/
public: