[dovecot/core] 062afc: lib: Add i_stream_nonseekable_try_seek()

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 062afc10604ec7261f4af58d8a63d1daa231ff82
      https://github.com/dovecot/core/commit/062afc10604ec7261f4af58d8a63d1daa231ff82
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2018-06-05 (Tue, 05 Jun 2018)

  Changed paths:
    M src/lib/istream-private.h
    M src/lib/istream.c

  Log Message:
  -----------
  lib: Add i_stream_nonseekable_try_seek()

This can be used by istreams to more easily implement seeking backwards when
it has to be done by first seeking back to offset 0 and reading from there.


  Commit: 9a36e573ff9c683434def3787a93fa746ed95171
      https://github.com/dovecot/core/commit/9a36e573ff9c683434def3787a93fa746ed95171
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2018-06-05 (Tue, 05 Jun 2018)

  Changed paths:
    M src/lib-dcrypt/istream-decrypt.c
    M src/lib-dcrypt/test-stream.c

  Log Message:
  -----------
  lib-dcrypt: istream-decrypt - Add support for seeking


  Commit: f6b794b8a530d11622b3c9fdbc037ee8b201a561
      https://github.com/dovecot/core/commit/f6b794b8a530d11622b3c9fdbc037ee8b201a561
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2018-06-05 (Tue, 05 Jun 2018)

  Changed paths:
    M src/lib/istream-private.h
    M src/lib/istream.c

  Log Message:
  -----------
  lib: i_stream_default_stat() - Get seekable streams' sizes by reading the stream

After the stream size is found, seek back to original offset.


  Commit: 3b9fd6391ca2ab34c324013b6567451c489e427a
      https://github.com/dovecot/core/commit/3b9fd6391ca2ab34c324013b6567451c489e427a
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2018-06-05 (Tue, 05 Jun 2018)

  Changed paths:
    M src/lib-compression/ostream-zlib.c
    M src/lib-compression/test-compression.c

  Log Message:
  -----------
  lib-compression: deflate ostream - Use Z_FINISH on final flush

Nowadays we have o_stream_finish(), so we can differentiate between
intermediate flush and final flush. Using this allows istream-zlib to
cleanly see that the stream ends.


  Commit: 9fa09080bf1257eb22309c6a3f547cfd6d9b5d52
      https://github.com/dovecot/core/commit/9fa09080bf1257eb22309c6a3f547cfd6d9b5d52
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2018-06-05 (Tue, 05 Jun 2018)

  Changed paths:
    M src/lib-compression/istream-bzlib.c
    M src/lib-compression/istream-lz4.c
    M src/lib-compression/istream-lzma.c
    M src/lib-compression/istream-zlib.c
    M src/lib-compression/test-compression.c

  Log Message:
  -----------
  lib-compression: Use i_stream_default_stat() instead of reimplementing it


  Commit: 40a5de3e2e3d6f9e881be06cebadf847710761a9
      https://github.com/dovecot/core/commit/40a5de3e2e3d6f9e881be06cebadf847710761a9
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2018-06-05 (Tue, 05 Jun 2018)

  Changed paths:
    M src/lib-compression/istream-bzlib.c
    M src/lib-compression/istream-lz4.c
    M src/lib-compression/istream-lzma.c
    M src/lib-compression/istream-zlib.c
    M src/lib-compression/test-compression.c

  Log Message:
  -----------
  lib-compression: Use i_stream_nonseekable_try_seek() instead of reimplementing it


Compare: https://github.com/dovecot/core/compare/d7b5be845ba6...40a5de3e2e3d
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