apt/test/integration/test-close-range, branch mainDebians commandline package managerhttps://git.kalnischkies.de/apt/atom?h=main2025-10-20T18:06:50ZExecFork: Simplify closing and make it safe2025-10-20T18:06:50ZJulian Andres Klodejak@debian.org2025-10-20T18:02:17Zurn:sha1:3dea3434bf2003b757d7ecdb5a8194c8a0c7023f
Implement a wrapper around FD_CLOEXEC and use it in place of
the raw fcntl(). This wrapper _Exit()s the child if the operation
failed.
Restructure the close_range() handling to simply mark all fds for
closing first and then "reopen" the ones we should keep.
Add some comments and tests around Keep-Fd ordering2025-10-20T17:42:57ZJulian Andres Klodejak@debian.org2025-10-20T17:41:57Zurn:sha1:cb8df17ff8e59192ae2ab864006eea120d408a7aExecFork: Use close_range() if available2025-10-20T15:16:45ZJulian Andres Klodejak@debian.org2025-10-20T15:14:31Zurn:sha1:6aca3716f051b5b6bff63d51fff68b9c7ebc7474
Use close_range() if we have it in preference to iterating
over /proc/self/fd and falling back to closing all possible
fds.
This builds sets of ranges to close that take into account
the APT::Keep-Fds vector, and a test case is provided to
ensure correctness of the splitting logic.
Preference is given to close_range() over /proc as in the
optimal case, this results in a single system call!