[#CORE-6097] Connection does not see itself in the MON$ATTACHMENTS when Domain/Username (using SSPI) is 31 bytes long

Firebird Core

Connection does not see itself in the MON$ATTACHMENTS when Domain/Username (using SSPI) is 31 bytes long

Created: 10/Jul/19 07:45 AM Updated: 25/Jul/19 10:41 AM

Component/s:

None

Affects Version/s:

3.0.4

Fix Version/s:

3.0.5, 4.0 Beta 2

QA Status:	Done with caveats
Test Details:	See notes in .fbt file.

Description

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We using trusted auth (Mapped from Win_Sspi) and our users have a login in Russian.
When FIO is very long, connect is not estabilished (~~CORE-5866~~).
When FIO have 13 symbols,connection to the database passes without problems, but "select * from mon$attachments" returns 0 rows.
An example of such a user: DOMN\КовалевскаяАА.

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Maxim Kuzmin added a comment - 10/Jul/19 07:51 AM

Add: In ~~CORE-5866~~ length FIO is 14 symbols and is more than 31 (14 * 2 + 5 = 33).
There - 13 symbols. 13 * 2 + 5 = 31 symbols. The problem is when the name is 31 characters long.

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Dmitry Yemanov added a comment - 10/Jul/19 08:12 AM

Monitoring truncates the stored user name to 31 bytes but no terminator byte is added when strncpy copied exactly 31 bytes. The fix should be one-liner.

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Dmitry Yemanov added a comment - 12/Jul/19 08:33 AM

It should be fixed now, please test the next snapshot build, once it's available.

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Maxim Kuzmin added a comment - 15/Jul/19 12:37 AM

Dmitry, in area http://web.firebirdsql.org/download/snapshot_builds/win/3.0/ last build #33152 from 7 july.

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Dmitry Yemanov added a comment - 15/Jul/19 03:54 PM

It's available now.

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Maxim Kuzmin added a comment - 17/Jul/19 03:18 AM - edited

Dmitry, in the snapshot a connection sees itself in the MON$ATTACHMENTS.