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| author | jilles <jilles@FreeBSD.org> | 2013-10-20 20:50:17 +0000 |
|---|---|---|
| committer | jilles <jilles@FreeBSD.org> | 2013-10-20 20:50:17 +0000 |
| commit | dc3e99b30a821620f294c8ab10d3812f4dc37479 (patch) | |
| tree | 64ff7463d9c0fc86a6e098f9cddfbce834ca6703 /sys/ufs | |
| parent | 297f76c244d3294522191a95f6c99c128e5b75f5 (diff) | |
| download | FreeBSD-src-dc3e99b30a821620f294c8ab10d3812f4dc37479.zip FreeBSD-src-dc3e99b30a821620f294c8ab10d3812f4dc37479.tar.gz | |
popen(): Try to prevent inappropriate fd passing even if 'e' is not used.
Even though not all race conditions can be fixed if the 'e' option is not
used, still fix some race conditions using pipe2():
* Prevent both ends of the pipe from leaking to a concurrent popen().
* Prevent the child process's end of the pipe from leaking to any concurrent
fork and exec.
This change also simplifies the code.
Diffstat (limited to 'sys/ufs')
0 files changed, 0 insertions, 0 deletions
