[sr-dev] [kamailio/kamailio] Fix returning multiple IP's for a cached DNS entry (#2260)

<!-- Kamailio Pull Request Template --> <!-- IMPORTANT: - for detailed contributing guidelines, read: https://github.com/kamailio/kamailio/blob/master/.github/CONTRIBUTING.md - pull requests must be done to master branch, unless they are backports of fixes from master branch to a stable branch - backports to stable branches must be done with 'git cherry-pick -x ...' - code is contributed under BSD for core and main components (tm, sl, auth, tls) - code is contributed GPLv2 or a compatible license for the other components - GPL code is contributed with OpenSSL licensing exception --> #### Pre-Submission Checklist <!-- Go over all points below, and after creating the PR, tick all the checkboxes that apply --> <!-- All points should be verified, otherwise, read the CONTRIBUTING guidelines from above--> <!-- If you're unsure about any of these, don't hesitate to ask on sr-dev mailing list --> - [x] Commit message has the format required by CONTRIBUTING guide - [x] Commits are split per component (core, individual modules, libs, utils, ...) - [x] Each component has a single commit (if not, squash them into one commit) - [x] No commits to README files for modules (changes must be done to docbook files in `doc/` subfolder, the README file is autogenerated) #### Type Of Change - [x] Small bug fix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds new functionality) - [ ] Breaking change (fix or feature that would change existing functionality) #### Checklist: <!-- Go over all points below, and after creating the PR, tick the checkboxes that apply --> - [ ] PR should be backported to stable branches - [x] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number) #### Description The method `dns_entry2he` was returning 10 `hostent` structures, containing the same record, because the rr counter was never updated (10 being the value of `DNS_HE_MAX_ADDR`). With this fix, the cache correctly returns all records found by the resolver. In the documentation of `dns_int_match_ip`, it says: >> At this moment, the function might not check all the IP addresses as returned by dns_sys_match_ip(), because the internal resolver targets to discover the first address to be used for relaying SIP traffic. I believe that with this patch, `dns_int_match_ip` now also works for DNS entries with multiple values. I'm not sure about mixed ipv4/ipv6 though. You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/2260 -- Commit Summary -- * Fix returning multiple IP's for a cached DNS entry -- File Changes -- M src/core/dns_cache.c (1) -- Patch Links -- https://github.com/kamailio/kamailio/pull/2260.patch https://github.com/kamailio/kamailio/pull/2260.diff -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/2260