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59362e560d
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Junio C Hamano 59362e560d system_path(): always return free'able memory to the caller 
The function sometimes returns a newly allocated string and
sometimes returns a borrowed string, the latter of which the callers
must not free().  The existing callers all assume that the return
value belongs to the callee and most of them copy it with strdup()
when they want to keep it around.  They end up leaking the returned
copy when the callee returned a new string because they cannot tell
if they should free it.

Change the contract between the callers and system_path() to make
the returned string owned by the callers; they are responsible for
freeing it when done, but they do not have to make their own copy to
store it away.

Adjust the callers to make sure they do not leak the returned string
once they are done, but do not bother freeing it just before dying,
exiting or exec'ing other program to avoid unnecessary churn.

Reported-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-11-30 16:39:47 -08:00
..
add.c read-cache: new API write_locked_index instead of write_index/write_cache 2014-06-13 11:49:10 -07:00
annotate.c annotate: use argv_array 2014-07-16 11:10:11 -07:00
apply.c Merge branch 'jc/apply-ws-prefix' into maint 2014-09-19 14:05:10 -07:00
archive.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
bisect--helper.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
blame.c move setting of object->type to alloc_* functions 2014-07-28 10:14:33 -07:00
branch.c refactor skip_prefix to return a boolean 2014-06-20 10:44:43 -07:00
bundle.c
cat-file.c Merge branch 'jk/warn-on-object-refname-ambiguity' 2014-03-25 11:07:36 -07:00
check-attr.c Merge branch 'jc/check-attr-honor-working-tree' into maint 2014-03-18 14:03:03 -07:00
check-ignore.c Merge branch 'dw/check-ignore-sans-index' 2013-09-20 12:37:32 -07:00
check-mailmap.c
check-ref-format.c
checkout-index.c entry.c: update cache_changed if refresh_cache is set in checkout_entry() 2014-06-13 11:49:39 -07:00
checkout.c Merge branch 'nd/split-index' 2014-07-16 11:25:40 -07:00
clean.c Merge branch 'rs/clean-menu-item-defn' into maint 2014-11-11 10:20:13 -08:00
clone.c use local cloning if insteadOf makes a local URL 2014-07-17 11:17:13 -07:00
column.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
commit-tree.c commit_tree: take a pointer/len pair rather than a const strbuf 2014-06-12 10:29:41 -07:00
commit.c Merge branch 'ta/string-list-init' 2014-07-23 11:35:54 -07:00
config.c Merge branch 'ta/config-add-to-empty-or-true-fix' into maint 2014-09-29 22:10:25 -07:00
count-objects.c
credential.c
describe.c hashmap: add simplified hashmap_get_from_hash() API 2014-07-07 13:56:35 -07:00
diff-files.c
diff-index.c
diff-tree.c diff-tree: avoid lookup_unknown_object 2014-07-28 10:14:34 -07:00
diff.c Merge branch 'tg/diff-no-index-refactor' 2013-12-27 14:58:17 -08:00
fast-export.c Merge branch 'jk/commit-buffer-length' 2014-07-02 12:53:02 -07:00
fetch-pack.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
fetch.c fetch: silence git-gc if --quiet is given 2014-08-18 10:14:19 -07:00
fmt-merge-msg.c Merge branch 'jk/xstrfmt' 2014-07-09 11:34:05 -07:00
for-each-ref.c use commit_list_count() to count the members of commit_lists 2014-07-17 13:36:25 -07:00
fsck.c Merge branch 'jk/fsck-exit-code-fix' into maint 2014-09-29 22:10:55 -07:00
gc.c Merge branch 'nd/daemonize-gc' into maint 2014-06-25 11:47:36 -07:00
get-tar-commit-id.c stop installing git-tar-tree link 2013-12-03 12:35:22 -08:00
grep.c Merge branch 'sk/spawn-less-case-insensitively-from-grep-O-i' into maint 2014-06-25 11:47:49 -07:00
hash-object.c hash-object: replace stdin parsing OPT_BOOLEAN by OPT_COUNTUP 2013-08-07 08:30:55 -07:00
help.c system_path(): always return free'able memory to the caller 2014-11-30 16:39:47 -08:00
index-pack.c Merge branch 'jk/index-pack-threading-races' into maint 2014-09-29 22:09:24 -07:00
init-db.c system_path(): always return free'able memory to the caller 2014-11-30 16:39:47 -08:00
log.c Merge branch 'jk/commit-buffer-length' into maint 2014-07-16 11:16:38 -07:00
ls-files.c pathspec: pass directory indicator to match_pathspec_item() 2014-02-24 14:37:19 -08:00
ls-remote.c builtin/ls-remote.c: rearrange xcalloc arguments 2014-05-27 14:00:43 -07:00
ls-tree.c pathspec: rename match_pathspec_depth() to match_pathspec() 2014-02-24 14:37:14 -08:00
mailinfo.c mailinfo: work around -Wstring-plus-int warning 2014-09-22 13:46:43 -07:00
mailsplit.c
merge-base.c Merge branch 'bm/merge-base-octopus-dedup' into maint 2014-02-13 13:38:59 -08:00
merge-file.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
merge-index.c
merge-ours.c
merge-recursive.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
merge-tree.c
merge.c Merge branch 'rs/code-cleaning' 2014-07-16 11:33:09 -07:00
mktag.c
mktree.c builtin/mktree.c: use ALLOC_GROW() in append_to_tree() 2014-03-03 14:54:45 -08:00
mv.c Merge branch 'nd/split-index' 2014-07-16 11:25:40 -07:00
name-rev.c use xstrfmt to replace xmalloc + strcpy/strcat 2014-06-19 15:20:54 -07:00
notes.c Merge branch 'mh/ref-transaction' 2014-06-03 12:06:41 -07:00
pack-objects.c Merge branch 'jk/pack-objects-no-bitmap-when-splitting' into maint 2014-10-29 10:35:17 -07:00
pack-redundant.c
pack-refs.c
patch-id.c patch-id: make it stable against hunk reordering 2014-06-10 13:09:24 -07:00
prune-packed.c i18n: mark all progress lines for translation 2014-02-24 09:08:37 -08:00
prune.c Merge branch 'mh/replace-refs-variable-rename' 2014-03-14 14:27:06 -07:00
push.c refactor skip_prefix to return a boolean 2014-06-20 10:44:43 -07:00
read-tree.c read-tree: note about dropping split-index mode or index version 2014-06-13 11:49:41 -07:00
receive-pack.c Merge branch 'jk/misc-fixes-maint' 2014-07-28 11:30:41 -07:00
reflog.c refs.c: add new functions reflog_exists and delete_reflog 2014-05-08 14:31:43 -07:00
remote-ext.c
remote-fd.c
remote.c Merge branch 'bg/xcalloc-nmemb-then-size' into maint 2014-07-22 10:25:17 -07:00
repack.c Merge branch 'jk/strip-suffix' 2014-07-16 11:26:00 -07:00
replace.c Merge branch 'cc/replace-graft' 2014-07-27 15:14:18 -07:00
rerere.c rerere: fix for merge.conflictstyle 2014-04-30 10:30:02 -07:00
reset.c Merge branch 'nd/split-index' 2014-07-16 11:25:40 -07:00
rev-list.c commit: record buffer length in cache 2014-06-13 12:09:38 -07:00
rev-parse.c Merge branch 'jk/misc-fixes-maint' 2014-07-28 11:30:41 -07:00
revert.c parse-options: multi-word argh should use dash to separate words 2014-03-24 10:43:34 -07:00
rm.c read-cache: new API write_locked_index instead of write_index/write_cache 2014-06-13 11:49:10 -07:00
send-pack.c send-pack: take refspecs over stdin 2014-08-26 12:58:02 -07:00
shortlog.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
show-branch.c Merge branch 'jk/misc-fixes-maint' 2014-07-28 11:30:41 -07:00
show-ref.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
stripspace.c builtin/stripspace.c: fix broken indentation 2013-09-06 13:33:17 -07:00
symbolic-ref.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
tag.c Merge branch 'jk/tag-sort' 2014-07-23 11:35:45 -07:00
unpack-file.c
unpack-objects.c Merge branch 'mh/replace-refs-variable-rename' 2014-03-14 14:27:06 -07:00
update-index.c Merge branch 'nd/split-index' 2014-07-16 11:25:40 -07:00
update-ref.c refs.c: change ref_transaction_update() to do error checking and return status 2014-07-14 11:54:42 -07:00
update-server-info.c
upload-archive.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
var.c
verify-commit.c verify-commit: scriptable commit signature verification 2014-06-23 15:50:31 -07:00
verify-pack.c verify-pack: use strbuf_strip_suffix 2014-06-30 13:43:32 -07:00
verify-tag.c
write-tree.c