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authorDan McGee <dan@archlinux.org>2014-01-02 12:37:12 -0600
committerAllan McRae <allan@archlinux.org>2014-01-06 14:38:50 +1000
commit086bbc5b623d08df9ffe595bd5ee965e668a4ae1 (patch)
tree894ba4ccad5f33bb497329c1c75a8200b9109b09 /src
parent8bec8a3f6a09155827aa8c3287f6d814c6912717 (diff)
downloadpacman-086bbc5b623d08df9ffe595bd5ee965e668a4ae1.tar.xz
Use O_CLOEXEC as much as possible when opening files
When calling open(), use O_CLOEXEC as much as possible to ensure the file descriptor is closed when and if a process using libalpm forks. For most of these cases, and especially in utility functions, the file descriptor is opened and closed in the same function, so we don't have too much to worry about. However, for things like the log file and database lock file, we should ensure descriptors aren't left hanging around for children to touch. This patch is inspired by the problem in FS#36161, where an open file descriptor to the current working directory prevents chroot() from working on FreeBSD. We don't need this file descriptor in the child process, so open it (and now several others) with O_CLOEXEC. Signed-off-by: Dan McGee <dan@archlinux.org> Signed-off-by: Allan McRae <allan@archlinux.org>
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