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Reopen standard file descriptors when they are missing on Unix #75295

Merged
merged 1 commit into from
Sep 28, 2020
Merged

Reopen standard file descriptors when they are missing on Unix #75295

merged 1 commit into from
Sep 28, 2020

Commits on Sep 27, 2020

  1. Reopen standard streams when they are closed on Unix 

    The syscalls returning a new file descriptors generally use
lowest-numbered file descriptor not currently opened, without any
exceptions for those corresponding to the standard streams.

Previously when any of standard streams has been closed before starting
the application, operations on std::io::{stderr,stdin,stdout} objects
were likely to operate on other logically unrelated file resources
opened afterwards.

Avoid the issue by reopening the standard streams when they are closed.
    @tmiasko
    tmiasko committed Sep 27, 2020
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