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authorMichael Vogt <mvo@ubuntu.com>2014-04-10 09:15:03 +0200
committerMichael Vogt <mvo@ubuntu.com>2014-04-10 09:15:03 +0200
commitf659e5d5f97350133671c48101fb399ddb9fcd42 (patch)
tree2e619308ff0b07f5ebe9d563aa8b9818c8653fa9 /apt-pkg/contrib/fileutl.cc
parenta8f438942457e4476ac7c6dab12a115fcebc8315 (diff)
parentdb5bf949ed796395d281474c49033f882e73f3a9 (diff)
Merge remote-tracking branch 'mvo/bugfix/lp1304657-perms' into debian/sid
Diffstat (limited to 'apt-pkg/contrib/fileutl.cc')
-rw-r--r--apt-pkg/contrib/fileutl.cc19
1 files changed, 13 insertions, 6 deletions
diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index 188bb87ee..69a675648 100644
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -958,10 +958,10 @@ class FileFdPrivate { /*{{{*/
// FileFd::Open - Open a file /*{{{*/
// ---------------------------------------------------------------------
/* The most commonly used open mode combinations are given with Mode */
-bool FileFd::Open(string FileName,unsigned int const Mode,CompressMode Compress, unsigned long const Perms)
+bool FileFd::Open(string FileName,unsigned int const Mode,CompressMode Compress, unsigned long const AccessMode)
{
if (Mode == ReadOnlyGzip)
- return Open(FileName, ReadOnly, Gzip, Perms);
+ return Open(FileName, ReadOnly, Gzip, AccessMode);
if (Compress == Auto && (Mode & WriteOnly) == WriteOnly)
return FileFdError("Autodetection on %s only works in ReadOnly openmode!", FileName.c_str());
@@ -1028,9 +1028,9 @@ bool FileFd::Open(string FileName,unsigned int const Mode,CompressMode Compress,
if (compressor == compressors.end())
return FileFdError("Can't find a match for specified compressor mode for file %s", FileName.c_str());
- return Open(FileName, Mode, *compressor, Perms);
+ return Open(FileName, Mode, *compressor, AccessMode);
}
-bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Compressor const &compressor, unsigned long const Perms)
+bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Compressor const &compressor, unsigned long const AccessMode)
{
Close();
Flags = AutoClose;
@@ -1067,6 +1067,13 @@ bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Co
if_FLAGGED_SET(Exclusive, O_EXCL);
#undef if_FLAGGED_SET
+ // umask() will always set the umask and return the previous value, so
+ // we first set the umask and then reset it to the old value
+ mode_t CurrentUmask = umask(0);
+ umask(CurrentUmask);
+ // calculate the actual file permissions (just like open/creat)
+ mode_t FilePermissions = (AccessMode & ~CurrentUmask);
+
if ((Mode & Atomic) == Atomic)
{
char *name = strdup((FileName + ".XXXXXX").c_str());
@@ -1080,11 +1087,11 @@ bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Co
TemporaryFileName = string(name);
free(name);
- if(Perms != 600 && fchmod(iFd, Perms) == -1)
+ if(FilePermissions != 600 && fchmod(iFd, FilePermissions) == -1)
return FileFdErrno("fchmod", "Could not change permissions for temporary file %s", TemporaryFileName.c_str());
}
else
- iFd = open(FileName.c_str(), fileflags, Perms);
+ iFd = open(FileName.c_str(), fileflags, FilePermissions);
this->FileName = FileName;
if (iFd == -1 || OpenInternDescriptor(Mode, compressor) == false)