out_datadog: fix/add error handling for all flb_sds calls

[PettitWesley]

Signed-off-by: Wesley Pettit [email protected]

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Enter [N/A] in the box, if an item is not applicable to your change.

Testing Before we can approve your change; please submit the following in a comment:

• [ ] Example configuration file for the change
• [ ] Debug log output from testing the change

• [ ] Attached Valgrind output that shows no leaks or memory corruption was found

If this is a change to packaging of containers or native binaries then please confirm it works for all targets.

• [ ] Attached local packaging test output showing all targets (including any new ones) build.

Documentation

• [ ] Documentation required for this feature

Backporting

• [ ] Backport to latest stable release.

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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

[PettitWesley]

Valgrind passes:

==26291==
==26291== HEAP SUMMARY:
==26291==     in use at exit: 110,402 bytes in 3,763 blocks
==26291==   total heap usage: 33,404 allocs, 29,641 frees, 6,283,769 bytes allocated
==26291==
==26291== LEAK SUMMARY:
==26291==    definitely lost: 0 bytes in 0 blocks
==26291==    indirectly lost: 0 bytes in 0 blocks
==26291==      possibly lost: 0 bytes in 0 blocks
==26291==    still reachable: 110,402 bytes in 3,763 blocks
==26291==         suppressed: 0 bytes in 0 blocks
==26291== Rerun with --leak-check=full to see details of leaked memory
==26291==
==26291== For lists of detected and suppressed errors, rerun with: -s
==26291== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

With config:

[SERVICE]
    Log_Level debug

[INPUT]
    Name dummy
    Tag dummy


[OUTPUT]
    Name        datadog
    Match	*
    Host        http-intake.logs.datadoghq.com
    TLS         on
    compress    gzip
    apikey	SECRET
    dd_service  wesley
    dd_source   test
    dd_tags     team:logs,foo:bar

[rajeev-netomi]

Can we please prioritise this PR ? Due to this issue we have been facing regular fluentbit crashes while sending logs to datadog.

[PettitWesley]

@edsiper CI passes except for CIFuzz. This is a bug fix which was causing crashes for a csutomer. Can we please merge?