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tds_connect: Leave the original context's error handler alone. Conditionalize out the code that temporarily set the socket's original context's error handler to NULL during version probing. The relevant socket already uses a temporary copy of that context with a suitable custom error handler, so the only potential usage of this context will be from other threads that should be able to carry on independently. JIRA: CXX-4368.
FreeTDS: Make log elision around logins properly thread-safe. Leave the global tds_write_dump toggle alone and supplement it with a thread-local tdsdump_elided(_verN) variable. JIRA: CXX-11303.
login.c (tds_connect): Skip non-TCP tries to connect to a host:port. TRUNK-0.95: 553080, 553092, 553115, 553191. AUTHOR: satskyse. JIRA: CXX-9729.
login.c (SET_FIELD_DSTR, for tds7_send_login): Cap field lengths at 128. MS SQL Server will silently drop the connection if any exceed that limit. TRUNK-0.95: 490374. JIRA: CXX-9729.
Report system errors' descriptions to ctlib clients. * tds.h (TDSMESSAGE): Add an osstr field. * ctutil.c (_ct_handle_client_message): Propagate it to osstring(len). * tds/login.c (tds_save): Clear osstr to avoid invalid reads when trying to connect to a dead server. * tds/ncbi_strerror.c: Clone from the connect tree. * tds/util.c (tdserror): Populate the osstr field; clean it when done. TRUNK-0.95: 487512. AUTHOR: ucko. TRUNK-0.95: 530901, 530912. AUTHOR: lavr. TRUNK-0.95: 546039. AUTHOR: satskyse. JIRA: CXX-9729.
Address FreeTDS 1.0 compiler warnings.
* Harmonize type usage, via explicit casts where necessary (and safe).
In particular, ensure that upstream tests' tds_thread_proc routines
know to return DWORD rather than void* on Windows.
* Ensure that any headers checking (TDS_)HAVE_* #include <config.h> first.
* Keep static assertions warning-free by using _Static_assert where
available.
* Ensure that members of types that should be unhidden have unhidden
forward declarations; likewise for their members, recursively.
* Remove (comment out) unused variables and constants.
* Express -2**31 and -2**63 in a manner all compilers accept happily.
* For LLVM Clang, substitute __attribute__((visibility("default")))
for __attribute__((externally_visible)), which it doesn't support.
* Add no-op default: cases to switch statements that don't explicitly
cover all of TDS_SERVER_TYPE.
* ctlib.h: #define _CS_CURS_TYPE_* to TDS_CURSOR_STATE_* rather than
(typelessly) duplicating their values.
* thread.h: Correct tds_thread_proc and TDS_THREAD_PROC_DECLARE; Windows
threads are expected to return DWORD, not void*.
* dblib/bcp.c (_bcp_get_col_data): Remove a redundant test for
non-negativity.
* dblib/dblib.c: Express -2?\194?\179?\194?\185 in a manner all compilers accept happily.
* odbc/unittests/attributes.c: Tell the compiler fatal() will never return.
* odbc/unittests/common.h: When the ODBC 3 API is available, favor
SQLSetStmtAttr over SQLSetStmtOption, which is deprecated.
* tds/convert.c: Rename the string_to_result function to ensure IDEs
don't conflate it with the identically named wrapper macro.
* tds/gssapi.c: Suppress GSSAPI deprecation warnings on Mac OS X.
* tds/md[45].c: Use TDS_PUT_(U)A4 to populate word32 targets cleanly.
* tds/query.c: #include <sys/socket.h> if available, for send().
* tds/sspi.c: Define _WIN32_WINNT before <config.h>, which might
otherwise supply a slightly different definition.
TRUNK-0.95: 487511, 554113. JIRA: CXX-9729.
Upon logging in, restore previous dump state (not necessarily on). * tds/log.c (tdsdump_state): New function to query logging status. * tds/login.c (tds7_send_login): Consult it, rather than unconditionally reenabling logging when done. TRUNK-0.95: 487510. JIRA: CXX-9729.
Enable automatic TDS protocol version detection. * ct.c (ct_con_props): Treat CS_TDS_VERSION 0 as requesting autodetection. * tds/login.c (tds_connect): Have autodetection always skip protocol versions 7.2 and higher, which yield different behavior and in particular break code that expects to receive text pointers for image and (n)text fields for use with WRITETEXT BULK (via ct_send_data). Always reset block size between probes to accommodate servers (notably Sybase 12.5) that don't support large packets. * tds/mem.c (tds_alloc_connection): default tds_version to 0. * Let upstream unit tests rely on autodetection. TRUNK-0.95: 487480. JIRA: CXX-9729.
Add upstream FreeTDS files from Branch-1_00, as of 2017-12-28. Incorporate fixes that didn't make it into the release (many of which would otherwise have wound up coming in as patches). Upstream revision ID: R1_00-80-gd40d5e91 (last commit 2017-11-29). JIRA: CXX-9729.
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