Juliusz Sosinowicz 1fa1228ba1 Address review: make the hang guards actually fire ...

Three ways the bounds added here failed to do their job:

- get_first_free_port ended the scan cap with 'exit 1', but every caller
  runs it in a command substitution, so only the subshell died. The port
  variable came back empty, the next $((port + 1)) evaluated to 1, and the
  run limped on to a confusing wait_for_readyFile failure. Forcing the cap
  on ocsp-stapling.test: before, the script ran on and hung until an outer
  timeout killed it; now it exits 1 at the error. Return instead, and check
  the status at all 25 call sites across the six scripts.

- The macOS timeout shim was a shell function. Backgrounding a function
  forks a subshell, so $! was the subshell and cleanup killed that while
  the server it was meant to stop leaked. Use a prefix variable that
  expands to nothing when timeout(1) is absent, keeping $! the real pid.

- timeout -s KILL exits 137, not 124. Sites that read $? and treat any
  non-zero as 'feature not compiled in' turned a hang into exit 0, so the
  bound made a hang less visible than before. Add timed_out() and check it
  before those skip branches; use it for the version probes too, which
  matched any status >= 124.

2026-08-13 15:52:17 +00:00

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