[v3,00/12] getaddrinfo facelift and fixes
Message ID | 20220317081140.3098156-1-siddhesh@sourceware.org (mailing list archive) |
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Message
Siddhesh Poyarekar
March 17, 2022, 8:11 a.m. UTC
The gaih_inet implementation, which forms the core of getaddrinfo, is quite complex in its implementation, making it hard to follow or debug. Particularly, allocations for gaih_addrtuples to store intermediate results are particularly hard to track because of the way in which it is written. This patchset is an attempt at cleaning up the implementation to make it much easier to follow. In the process, it also fixes a couple of bugs, one that was the trigger for this cleanup and another that was discovered during the cleanup. Changes from v2: - 1/12: reinitialized got_ipv6 too, changed test case to run in a container. - 8/12: Fix leak on realloc failure - Rest: updated review comments. Changes from v1: - Fixed nit: boolean coercion in convert_hostent_to_gaih_addrtuple - Dropped DNS tests in tst-nss-gai-actions test since they are unnecessary and the files tests are sufficient. Siddhesh Poyarekar (12): Simplify allocations and fix merge and continue actions [BZ #28931] gaih_inet: Simplify canon name resolution getaddrinfo: Fix leak with AI_ALL [BZ #28852] gaih_inet: Simplify service resolution gaih_inet: make numeric lookup a separate routine gaih_inet: Split simple gethostbyname into its own function gaih_inet: Split nscd lookup code into its own function. gaih_inet: separate nss lookup loop into its own function gaih_inet: make gethosts into a function gaih_inet: split loopback lookup into its own function gaih_inet: Split result generation into its own function gethosts: Return EAI_MEMORY on allocation failure nss/Makefile | 1 + nss/tst-nss-gai-actions.c | 149 ++ nss/tst-nss-gai-actions.root/etc/host.conf | 1 + nss/tst-nss-gai-actions.root/etc/hosts | 508 +++++++ sysdeps/posix/getaddrinfo.c | 1520 +++++++++++--------- 5 files changed, 1464 insertions(+), 715 deletions(-) create mode 100644 nss/tst-nss-gai-actions.c create mode 100644 nss/tst-nss-gai-actions.root/etc/host.conf create mode 100644 nss/tst-nss-gai-actions.root/etc/hosts