[dovecot/core] 090a1b: lib: Add i_stream_nonseekable_try_seek()

[GitHub]

  Branch: refs/heads/master-2.2
  Home:   https://github.com/dovecot/core
  Commit: 090a1badd80e48f8bbc0f3ae7ffef593a672211b
      https://github.com/dovecot/core/commit/090a1badd80e48f8bbc0f3ae7ffef593a672211b
  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: 1cd2723e4d4e4ee6db521696b7db4f447fe2a5c1
      https://github.com/dovecot/core/commit/1cd2723e4d4e4ee6db521696b7db4f447fe2a5c1
  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: dacb60abdb5f3b263cd3de7fad03a563a6042f7a
      https://github.com/dovecot/core/commit/dacb60abdb5f3b263cd3de7fad03a563a6042f7a
  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

  Log Message:
  -----------
  lib-dcrypt: istream-decrypt - Add support for getting stream size


Compare: https://github.com/dovecot/core/compare/68b88b0295c5...dacb60abdb5f
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