Submitted by: Treeve Jelbert (treeve)

Assigned to: @pmakowski

isc_info_firebird_version fails with TypeError: 'an integer is required'

I tried using the python debugger and got the following data

$ ./test
>
/usr/lib/python2.7/site-packages/sqlalchemy/dialects/firebird/fdb.py(155)_get_server_version_in$
-> fbconn = connection.connection
(Pdb) c
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(780)database_info()
-> if ord2(res_buf[i]) != isc_info_end:
(Pdb) p res_buf
'g\x80\x00\x03\x1cLI-V2.5.2.26455 Firebird 2.50LI-V2.5.2.26455 Firebird 2.5/tcp
(Gemini-64)/P120LI-V2.5.2.26455 Firebird 2.5/tcp
(Gemini-64)/P12\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00$
(Pdb) p i
131
(Pdb) s
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(783)database_info()
-> if request_buffer[0] != res_buf[0]:
(Pdb) p request_buffer[0]
'g'
(Pdb) s
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(785)database_info()
-> if result_type.upper() == 'I':
(Pdb) s
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(787)database_info()
-> elif (result_type.upper() == 'S'
(Pdb)
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(788)database_info()
-> and info_code not in _DATABASE_INFO__KNOWN_LOW_LEVEL_EXCEPTIONS):
(Pdb)
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(792)database_info()
-> return ctypes.string_at(res_buf[3:], i - 3)
(Pdb)
--Call--
> /usr/lib/python2.7/ctypes/__init__.py(495)string_at()
-> def string_at(ptr, size=-1):
(Pdb)
> /usr/lib/python2.7/ctypes/__init__.py(499)string_at()
-> return _string_at(ptr, size)
(Pdb)
--Return--
> /usr/lib/python2.7/ctypes/__init__.py(499)string_at()->'\x03\x1cLI-V...emini-64)/P12'
-> return _string_at(ptr, size)
(Pdb)
--Return-->
/usr/lib/python2.7/site-packages/fdb/fbcore.py(792)database_info()->'\x03\x1cLI-V...emini-64)/P$
-> return ctypes.string_at(res_buf[3:], i - 3)
(Pdb)
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(892)db_info()
-> pos = 1
(Pdb)
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(894)db_info()
-> versionStringLen = (struct.unpack('B',
(Pdb)
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(895)db_info()

(Pdb)
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(895)db_info()
-> int2byte(buf[pos]))[0])
(Pdb) unt
--Return--
> /usr/lib/python2.7/site-packages/fdb/fbcore.py(895)db_info()->None
-> int2byte(buf[pos]))[0])
(Pdb)
TypeError: 'an integer is required'

Commits: 9bf1220