[Bug 266970] net/nss-pam-ldapd: Very slow startup on machines with lots of RAM

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266970

            Bug ID: 266970
           Summary: net/nss-pam-ldapd: Very slow startup on machines with
                    lots of RAM
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: zi@FreeBSD.org
          Reporter: asomers@FreeBSD.org
             Flags: maintainer-feedback?(zi@FreeBSD.org)
          Assignee: zi@FreeBSD.org

Created attachment 237216
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=237216&action=edit
Patches nslcd to use closefrom instead of close

nslcd tries to close all file descriptors on startup.  It does that by calling
close() in a loop, running down from _SC_OPEN_MAX to 0.  Since _SC_OPEN_MAX
autoscales with available RAM, this can take more than a minute on large
servers.
The solution is to use closefrom.  Upstream has already made that change in the
master branch, but due to its slow release cadence I suggest we apply the
change in the ports tree as well.

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