[curl/curl] a4d25b: lib: when saving files, use advisory locks

Daniel Stenberg <[email protected]> Mon, 03 May 2021 13:36:26 -0700

Newsgroups	gmane.comp.web.curl.cvs
Message-ID	<curl/curl/push/refs/heads/bagder/lock-output-files/[email protected]>

  Branch: refs/heads/bagder/lock-output-files
  Home:   https://github.com/curl/curl
  Commit: a4d25b6ded3a9140540f8d18ed816cd3c73f5cae
      https://github.com/curl/curl/commit/a4d25b6ded3a9140540f8d18ed816cd3c73f5cae
  Author: Daniel Stenberg <[email protected]>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M CMakeLists.txt
    M configure.ac
    M lib/Makefile.inc
    M lib/altsvc.c
    M lib/altsvc.h
    M lib/cookie.c
    M lib/curl_config.h.cmake
    M lib/hsts.c
    A lib/openlock.c
    A lib/openlock.h
    R lib/rename.c
    R lib/rename.h
    M lib/url.c
    M tests/unit/unit1654.c

  Log Message:
  -----------
  lib: when saving files, use advisory locks

... instead of saving into a temp name and rename. This makes them work
properly when the output is a character device. Applies to cookies,
alt-svc and hsts files.

Makes Curl_rename superfluous and therefore removed.

Reported-by: rofl0r on github
Assisted-by: Paul Vixie
Fixes #6882


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