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d9e557a320
git-commit-vandalism/builtin
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Jeff King d9e557a320 show-branch: store resolved head in heap buffer 
We resolve HEAD and copy the result to a fixed-size buffer
with memcpy, never checking that it actually fits. This bug
dates back to 8098a178b (Add git-symbolic-ref, 2005-09-30).
Before that we used readlink(), which took a maximum buffer
size.

We can fix this by using resolve_refdup(), which duplicates
the buffer on the heap. That also lets us just check
for a NULL pointer to see if we have resolved HEAD, and
drop the extra head_p variable.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-14 11:28:53 -08:00
..
add.c add: modify already added files when --chmod is given 2016-09-15 12:13:54 -07:00
am.c Merge branch 'jc/am-read-author-file' into maint 2016-11-29 13:27:53 -08:00
annotate.c
apply.c Merge branch 'va/i18n-even-more' 2016-07-13 11:24:10 -07:00
archive.c
bisect--helper.c
blame.c blame: use DEFAULT_ABBREV macro 2016-09-28 14:56:00 -07:00
branch.c Merge branch 'jk/create-branch-remove-unused-param' into maint 2016-11-29 13:28:02 -08:00
bundle.c
cat-file.c cat-file: put spaces around pipes in usage string 2016-09-08 12:16:38 -07:00
check-attr.c give "nbuf" strbuf a more meaningful name 2016-02-01 13:43:02 -08:00
check-ignore.c give "nbuf" strbuf a more meaningful name 2016-02-01 13:43:02 -08:00
check-mailmap.c strbuf: introduce strbuf_getline_{lf,nul}() 2016-01-15 10:12:51 -08:00
check-ref-format.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
checkout-index.c checkout-index: disallow "--no-stage" option 2016-02-01 13:43:49 -08:00
checkout.c Merge branch 'jk/create-branch-remove-unused-param' into maint 2016-11-29 13:28:02 -08:00
clean.c Merge branch 'jk/tighten-alloc' 2016-02-26 13:37:16 -08:00
clone.c Merge branch 'jk/clone-copy-alternates-fix' into maint 2016-10-28 09:01:14 -07:00
column.c column: read lines with strbuf_getline() 2016-01-15 10:35:07 -08:00
commit-tree.c Merge branch 'jc/commit-tree-ignore-commit-gpgsign' 2016-05-13 13:18:27 -07:00
commit.c Merge branch 'rs/commit-pptr-simplify' into maint 2016-11-29 13:27:59 -08:00
config.c Merge branch 'js/commit-slab-decl-fix' 2016-08-10 12:33:20 -07:00
count-objects.c
credential.c
describe.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
diff-files.c diff: run arguments through precompose_argv 2016-05-13 14:35:49 -07:00
diff-index.c diff: run arguments through precompose_argv 2016-05-13 14:35:49 -07:00
diff-tree.c Merge branch 'ar/diff-args-osx-precompose' into maint 2016-06-06 14:27:35 -07:00
diff.c Merge branch 'ar/diff-args-osx-precompose' into maint 2016-06-06 14:27:35 -07:00
fast-export.c diff: convert struct diff_filespec to struct object_id 2016-06-28 11:39:02 -07:00
fetch-pack.c fetch-pack: fix object_id of exact sha1 2016-03-01 11:19:19 -08:00
fetch.c Merge branch 'jk/fetch-quick-tag-following' into maint 2016-10-28 09:01:17 -07:00
fmt-merge-msg.c use strbuf_addstr() for adding constant strings to a strbuf, part 2 2016-09-15 12:23:38 -07:00
for-each-ref.c ref-filter: add option to match literal pattern 2015-09-17 10:02:49 -07:00
fsck.c Merge branch 'nd/pack-ofs-4gb-limit' into maint 2016-08-08 14:21:36 -07:00
gc.c Merge branch 'jk/reduce-gc-aggressive-depth' into maint 2016-09-29 16:49:42 -07:00
get-tar-commit-id.c usage: do not insist that standard input must come from a file 2015-10-16 15:27:52 -07:00
grep.c Merge branch 'nd/ita-cleanup' into maint 2016-07-28 11:25:51 -07:00
hash-object.c Merge branch 'jk/options-cleanup' 2016-02-10 14:20:08 -08:00
help.c Merge branch 'js/no-html-bypass-on-windows' into maint 2016-09-08 21:35:55 -07:00
index-pack.c Merge branch 'jk/push-progress' 2016-08-03 15:10:28 -07:00
init-db.c i18n: init-db: join message pieces 2016-06-17 15:46:10 -07:00
interpret-trailers.c Merge branch 'jk/parseopt-string-list' into jk/string-list-static-init 2016-06-13 10:37:48 -07:00
log.c format-patch: show base info before email signature 2016-09-15 10:07:10 -07:00
ls-files.c die("bug"): report bugs consistently 2016-07-26 11:13:44 -07:00
ls-remote.c ls-remote: add support for showing symrefs 2016-01-19 10:07:56 -08:00
ls-tree.c convert trivial sprintf / strcpy calls to xsnprintf 2015-09-25 10:18:18 -07:00
mailinfo.c mailinfo: libify 2015-10-21 15:59:34 -07:00
mailsplit.c mailsplit: support unescaping mboxrd messages 2016-06-06 11:14:43 -07:00
merge-base.c merge-base: handle --fork-point without reflog 2016-10-12 14:30:16 -07:00
merge-file.c builtin/merge-file.c: use error_errno() 2016-05-09 12:29:08 -07:00
merge-index.c use sha1_to_hex_r() instead of strcpy 2015-10-05 11:08:05 -07:00
merge-ours.c
merge-recursive.c merge-recursive: convert merge_recursive_generic() to object_id 2016-06-28 11:39:02 -07:00
merge-tree.c struct name_entry: use struct object_id instead of unsigned char sha1[20] 2016-04-25 14:23:42 -07:00
merge.c use strbuf_addstr() for adding constant strings to a strbuf, part 2 2016-09-15 12:23:38 -07:00
mktag.c usage: do not insist that standard input must come from a file 2015-10-16 15:27:52 -07:00
mktree.c Merge branch 'jk/tighten-alloc' 2016-02-26 13:37:16 -08:00
mv.c Merge branch 'rs/copy-array' into maint 2016-10-11 14:18:32 -07:00
name-rev.c Merge branch 'js/name-rev-use-oldest-ref' into maint 2016-05-31 14:08:26 -07:00
notes.c i18n: notes: mark comment for translation 2016-07-28 09:09:18 -07:00
pack-objects.c Merge branch 'jk/pack-tag-of-tag' into maint 2016-10-03 13:22:13 -07:00
pack-redundant.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
pack-refs.c
patch-id.c Merge branch 'rs/patch-id-use-skip-prefix' 2016-06-03 14:38:03 -07:00
prune-packed.c
prune.c Merge branch 'jk/repository-extension' into maint 2015-11-03 15:32:25 -08:00
pull.c Merge branch 'va/i18n-even-more' 2016-07-13 11:24:10 -07:00
push.c push: accept push options 2016-07-14 15:50:41 -07:00
read-tree.c convert trivial sprintf / strcpy calls to xsnprintf 2015-09-25 10:18:18 -07:00
receive-pack.c Merge branch 'jk/tighten-alloc' into maint 2016-09-08 21:36:00 -07:00
reflog.c struct name_entry: use struct object_id instead of unsigned char sha1[20] 2016-04-25 14:23:42 -07:00
remote-ext.c typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
remote-fd.c
remote.c Merge branch 'mh/ref-iterators' 2016-07-25 14:13:33 -07:00
repack.c Merge branch 'va/i18n-even-more' 2016-07-13 11:24:10 -07:00
replace.c Merge branch 'js/replace-edit-use-editor-configuration' into maint 2016-05-06 14:53:24 -07:00
rerere.c Sync with 2.6.1 2015-10-05 13:20:08 -07:00
reset.c Merge branch 'js/reset-usage' into maint 2016-10-28 09:01:22 -07:00
rev-list.c rev-list: add optional progress reporting 2016-07-20 12:10:44 -07:00
rev-parse.c use strbuf_addstr() for adding constant strings to a strbuf 2016-08-01 13:42:10 -07:00
revert.c parse_options: allocate a new array when concatenating 2016-07-06 10:11:08 -07:00
rm.c Merge branch 'rs/rm-strbuf-optim' into maint 2016-08-10 11:55:24 -07:00
send-pack.c Merge branch 'sk/send-pack-all-fix' into maint 2016-04-29 14:15:57 -07:00
shortlog.c Merge branch 'js/log-to-diffopt-file' 2016-07-19 13:22:15 -07:00
show-branch.c show-branch: store resolved head in heap buffer 2017-02-14 11:28:53 -08:00
show-ref.c show-ref: stop using PARSE_OPT_NO_INTERNAL_HELP 2015-11-20 08:02:07 -05:00
stripspace.c stripspace: call U+0020 a "space" instead of a "blank" 2016-01-29 16:02:34 -08:00
submodule--helper.c use strbuf_addstr() instead of strbuf_addf() with "%s", part 2 2016-09-27 14:02:40 -07:00
symbolic-ref.c symbolic-ref -d: do not allow removal of HEAD 2016-09-02 09:01:38 -07:00
tag.c Merge branch 'st/verify-tag' 2016-04-29 12:59:09 -07:00
unpack-file.c convert trivial sprintf / strcpy calls to xsnprintf 2015-09-25 10:18:18 -07:00
unpack-objects.c coccinelle: convert hashcpy() with null_sha1 to hashclr() 2016-06-28 11:39:02 -07:00
update-index.c Merge branch 'tg/add-chmod+x-fix' into maint 2016-09-29 16:49:47 -07:00
update-ref.c
update-server-info.c
upload-archive.c builtin/upload-archive.c: use error_errno() 2016-05-09 12:29:08 -07:00
var.c
verify-commit.c
verify-pack.c
verify-tag.c verify-tag: move tag verification code to tag.c 2016-04-22 14:06:46 -07:00
worktree.c worktree: honor configuration variables 2016-09-27 10:51:33 -07:00
write-tree.c