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crosvm/seccomp
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Chirantan Ekbote a00991cd84 Replace dup with fcntl(F_DUPFD_CLOEXEC) 
Fds created via dup don't share file descriptor flags with the original
fd, which means that they don't have the FD_CLOEXEC flag set.  Use
fcntl(F_DUPFD_CLOEXEC) so that this flag gets set for the duplicated fds
as well.

BUG=none
TEST=unit tests

Change-Id: Ib471cf40acac1eacf72969ba45247f50b349ed58
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2809687
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2021-04-15 10:34:04 +00:00
..
aarch64 Replace dup with fcntl(F_DUPFD_CLOEXEC) 2021-04-15 10:34:04 +00:00
arm Replace dup with fcntl(F_DUPFD_CLOEXEC) 2021-04-15 10:34:04 +00:00
x86_64 Replace dup with fcntl(F_DUPFD_CLOEXEC) 2021-04-15 10:34:04 +00:00