| commit | 561fa03529202a36e0d77548fdcb5d81422c1865 | [log] [tgz] |
|---|---|---|
| author | Ævar Arnfjörð Bjarmason <avarab@gmail.com> | Fri Jul 09 12:13:48 2021 +0200 |
| committer | Junio C Hamano <gitster@pobox.com> | Fri Jul 09 11:53:40 2021 -0700 |
| tree | f3dd9c9b67154d4cb45fe46bb780ea7528e62632 | |
| parent | fb20d4b1268d97646ae24f07661892cf6da64c31 [diff] |
pack-objects: fix segfault in --stdin-packs option Fix a segfault in the --stdin-packs option added in 339bce27f4f (builtin/pack-objects.c: add '--stdin-packs' option, 2021-02-22). The read_packs_list_from_stdin() function didn't check that the lines it was reading were valid packs, and thus when doing the QSORT() with pack_mtime_cmp() we'd have a NULL "util" field. The "util" field is used to associate the names of included/excluded packs with the packed_git structs they correspond to. The logic error was in assuming that we could iterate all packs and annotate the excluded and included packs we got, as opposed to checking the lines we got on stdin. There was a check for excluded packs, but included packs were simply assumed to be valid. As noted in the test we'll not report the first bad line, but whatever line sorted first according to the string-list.c API. In this case I think that's fine. There was further discussion of alternate approaches in [1]. Even though we're being lazy let's assert the line we do expect to get in the test, since whoever changes this code in the future might miss this case, and would want to update the test and comments. 1. http://lore.kernel.org/git/YND3h2l10PlnSNGJ@nand.local Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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