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createTempDir(): Don't do a chown on Linux

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It's not needed and can cause problems in a user namespace.
This commit is contained in:
Eelco Dolstra 2016-06-02 18:17:30 +02:00
parent a24f2c9b84
commit a424ab0444
1 changed files with 2 additions and 0 deletions
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2
src/libutil/util.cc
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@ -384,6 +384,7 @@ Path createTempDir(const Path & tmpRoot, const Path & prefix,
checkInterrupt();
Path tmpDir = tempName(tmpRoot, prefix, includePid, counter);
if (mkdir(tmpDir.c_str(), mode) == 0) {
#if __FreeBSD__
/* Explicitly set the group of the directory. This is to
work around around problems caused by BSD's group
ownership semantics (directories inherit the group of
@ -394,6 +395,7 @@ Path createTempDir(const Path & tmpRoot, const Path & prefix,
have the setgid bit set on directories. */
if (chown(tmpDir.c_str(), (uid_t) -1, getegid()) != 0)
throw SysError(format("setting group of directory ‘%1%’") % tmpDir);
#endif
return tmpDir;
}
if (errno != EEXIST)