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With invalid addresses specified which give no currently-bound
address, we must avoid leaving placeholders ('true' objects)
in our results.
Clean up some shadowing "cur" while we're at it.
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When unix_listener_stats is called without arguments, it should
still match the behavior of tcp_listener_stats and return
ListenerStats object with zero values.
This allows callers to iterate through the results to find the
pathnames of all the Unix domain sockets in in listen mode.
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Teach unix_listener_stats to remember the symlink path
it followed and have it point to the same object as the
resolved (real) socket path.
This allows the case where looking up stats by symlinks
works if the symlink is given to unix_listener_stats:
File.symlink("/real/path/of.sock", "/path/to/link.sock")
stats = unix_listener_stats(["/path/to/link.sock"])
stats["/path/to/link.sock"] => # same as stats["/real/path/of.sock"]
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Raindrops currently fails when provided a symlink to a socket.
As this is a common practice for many deployment tools (Vlad,
etc.) this patch adds support for finding the realpath prior to
looking the socket up in /proc/net/unix
[ew: commit message subject]
[ew: fixed test to pass under 1.9.3 and 1.8.7:
* Tempfile#unlink is unsafe to call if we want to reuse the
path, use File.unlink(tmp.path) instead
* The return value of File.symlink is zero (or it raises),
so it's unusable.
* File.symlink will not call #to_path under 1.8.7, so it's
necessary to pass pathnames to it, not Tempfile objects.
]
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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Found in the check-warnings target in pkg.mk
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This matches behavior of the TCP version.
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No need to waste resources on creating/destroying
a socket.
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It's not needed since we don't care to rebind sockets
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