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authorJunio C Hamano <gitster@pobox.com>2017-05-29 03:34:44 (GMT)
committerJunio C Hamano <gitster@pobox.com>2017-05-29 03:34:44 (GMT)
commit849e671b52e11d4a2f70d577dd2c806f3ca756fe (patch)
treef564d4d2782856efcdcff278b385a989c031a6c1 /builtin
parent137a2613a07e556fd77fe374c6f4edd2d5e1b1fc (diff)
parent443a12f37be1c5967785b83bf04935fe357afb9b (diff)
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Merge branch 'js/plug-leaks'
Fix memory leaks pointed out by Coverity (and people). * js/plug-leaks: (26 commits) checkout: fix memory leak submodule_uses_worktrees(): plug memory leak show_worktree(): plug memory leak name-rev: avoid leaking memory in the `deref` case remote: plug memory leak in match_explicit() add_reflog_for_walk: avoid memory leak shallow: avoid memory leak line-log: avoid memory leak receive-pack: plug memory leak in update() fast-export: avoid leaking memory in handle_tag() mktree: plug memory leaks reported by Coverity pack-redundant: plug memory leak setup_discovered_git_dir(): plug memory leak setup_bare_git_dir(): help static analysis split_commit_in_progress(): simplify & fix memory leak checkout: fix memory leak cat-file: fix memory leak mailinfo & mailsplit: check for EOF while parsing status: close file descriptor after reading git-rebase-todo difftool: address a couple of resource/memory leaks ...
Diffstat (limited to 'builtin')
-rw-r--r--builtin/am.c15
-rw-r--r--builtin/cat-file.c1
-rw-r--r--builtin/checkout.c18
-rw-r--r--builtin/difftool.c33
-rw-r--r--builtin/fast-export.c2
-rw-r--r--builtin/mailsplit.c10
-rw-r--r--builtin/mktree.c5
-rw-r--r--builtin/name-rev.c7
-rw-r--r--builtin/pack-redundant.c1
-rw-r--r--builtin/receive-pack.c4
-rw-r--r--builtin/worktree.c8
11 files changed, 69 insertions, 35 deletions
diff --git a/builtin/am.c b/builtin/am.c
index 2ec1d7b..8b218f9 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1351,19 +1351,16 @@ static int get_mail_commit_oid(struct object_id *commit_id, const char *mail)
struct strbuf sb = STRBUF_INIT;
FILE *fp = xfopen(mail, "r");
const char *x;
+ int ret = 0;
- if (strbuf_getline_lf(&sb, fp))
- return -1;
-
- if (!skip_prefix(sb.buf, "From ", &x))
- return -1;
-
- if (get_oid_hex(x, commit_id) < 0)
- return -1;
+ if (strbuf_getline_lf(&sb, fp) ||
+ !skip_prefix(sb.buf, "From ", &x) ||
+ get_oid_hex(x, commit_id) < 0)
+ ret = -1;
strbuf_release(&sb);
fclose(fp);
- return 0;
+ return ret;
}
/**
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 1890d7a..9af863e 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -165,6 +165,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
die("git cat-file %s: bad file", obj_name);
write_or_die(1, buf, size);
+ free(buf);
return 0;
}
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 65877ba..b6249a3 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -235,22 +235,24 @@ static int checkout_merged(int pos, const struct checkout *state)
/*
* NEEDSWORK:
* There is absolutely no reason to write this as a blob object
- * and create a phony cache entry just to leak. This hack is
- * primarily to get to the write_entry() machinery that massages
- * the contents to work-tree format and writes out which only
- * allows it for a cache entry. The code in write_entry() needs
- * to be refactored to allow us to feed a <buffer, size, mode>
- * instead of a cache entry. Such a refactoring would help
- * merge_recursive as well (it also writes the merge result to the
- * object database even when it may contain conflicts).
+ * and create a phony cache entry. This hack is primarily to get
+ * to the write_entry() machinery that massages the contents to
+ * work-tree format and writes out which only allows it for a
+ * cache entry. The code in write_entry() needs to be refactored
+ * to allow us to feed a <buffer, size, mode> instead of a cache
+ * entry. Such a refactoring would help merge_recursive as well
+ * (it also writes the merge result to the object database even
+ * when it may contain conflicts).
*/
if (write_sha1_file(result_buf.ptr, result_buf.size,
blob_type, oid.hash))
die(_("Unable to add merge result for '%s'"), path);
+ free(result_buf.ptr);
ce = make_cache_entry(mode, oid.hash, path, 2, 0);
if (!ce)
die(_("make_cache_entry failed for path '%s'"), path);
status = checkout_entry(ce, state, NULL);
+ free(ce);
return status;
}
diff --git a/builtin/difftool.c b/builtin/difftool.c
index 1354d0e..b9a892f 100644
--- a/builtin/difftool.c
+++ b/builtin/difftool.c
@@ -226,6 +226,7 @@ static void changed_files(struct hashmap *result, const char *index_path,
hashmap_entry_init(entry, strhash(buf.buf));
hashmap_add(result, entry);
}
+ fclose(fp);
if (finish_command(&diff_files))
die("diff-files did not exit properly");
strbuf_release(&index_env);
@@ -439,8 +440,10 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
}
if (lmode && status != 'C') {
- if (checkout_path(lmode, &loid, src_path, &lstate))
- return error("could not write '%s'", src_path);
+ if (checkout_path(lmode, &loid, src_path, &lstate)) {
+ ret = error("could not write '%s'", src_path);
+ goto finish;
+ }
}
if (rmode && !S_ISLNK(rmode)) {
@@ -456,9 +459,12 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
hashmap_add(&working_tree_dups, entry);
if (!use_wt_file(workdir, dst_path, &roid)) {
- if (checkout_path(rmode, &roid, dst_path, &rstate))
- return error("could not write '%s'",
- dst_path);
+ if (checkout_path(rmode, &roid, dst_path,
+ &rstate)) {
+ ret = error("could not write '%s'",
+ dst_path);
+ goto finish;
+ }
} else if (!is_null_oid(&roid)) {
/*
* Changes in the working tree need special
@@ -473,10 +479,12 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
ADD_CACHE_JUST_APPEND);
add_path(&rdir, rdir_len, dst_path);
- if (ensure_leading_directories(rdir.buf))
- return error("could not create "
- "directory for '%s'",
- dst_path);
+ if (ensure_leading_directories(rdir.buf)) {
+ ret = error("could not create "
+ "directory for '%s'",
+ dst_path);
+ goto finish;
+ }
add_path(&wtdir, wtdir_len, dst_path);
if (symlinks) {
if (symlink(wtdir.buf, rdir.buf)) {
@@ -497,13 +505,15 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
}
}
+ fclose(fp);
+ fp = NULL;
if (finish_command(&child)) {
ret = error("error occurred running diff --raw");
goto finish;
}
if (!i)
- return 0;
+ goto finish;
/*
* Changes to submodules require special treatment.This loop writes a
@@ -626,6 +636,9 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
exit_cleanup(tmpdir, rc);
finish:
+ if (fp)
+ fclose(fp);
+
free(lbase_dir);
free(rbase_dir);
strbuf_release(&ldir);
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 9695505..24e29ad 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -734,6 +734,7 @@ static void handle_tag(const char *name, struct tag *tag)
oid_to_hex(&tag->object.oid));
case DROP:
/* Ignore this tag altogether */
+ free(buf);
return;
case REWRITE:
if (tagged->type != OBJ_COMMIT) {
@@ -765,6 +766,7 @@ static void handle_tag(const char *name, struct tag *tag)
(int)(tagger_end - tagger), tagger,
tagger == tagger_end ? "" : "\n",
(int)message_size, (int)message_size, message ? message : "");
+ free(buf);
}
static struct commit *get_commit(struct rev_cmdline_entry *e, char *full_name)
diff --git a/builtin/mailsplit.c b/builtin/mailsplit.c
index 3068168..664400b 100644
--- a/builtin/mailsplit.c
+++ b/builtin/mailsplit.c
@@ -232,6 +232,16 @@ static int split_mbox(const char *file, const char *dir, int allow_bare,
do {
peek = fgetc(f);
+ if (peek == EOF) {
+ if (f == stdin)
+ /* empty stdin is OK */
+ ret = skip;
+ else {
+ fclose(f);
+ error(_("empty mbox: '%s'"), file);
+ }
+ goto out;
+ }
} while (isspace(peek));
ungetc(peek, f);
diff --git a/builtin/mktree.c b/builtin/mktree.c
index de9b40f..da0fd8c 100644
--- a/builtin/mktree.c
+++ b/builtin/mktree.c
@@ -72,7 +72,7 @@ static void mktree_line(char *buf, size_t len, int nul_term_line, int allow_miss
unsigned mode;
enum object_type mode_type; /* object type derived from mode */
enum object_type obj_type; /* object type derived from sha */
- char *path;
+ char *path, *to_free = NULL;
unsigned char sha1[20];
ptr = buf;
@@ -102,7 +102,7 @@ static void mktree_line(char *buf, size_t len, int nul_term_line, int allow_miss
struct strbuf p_uq = STRBUF_INIT;
if (unquote_c_style(&p_uq, path, NULL))
die("invalid quoting");
- path = strbuf_detach(&p_uq, NULL);
+ path = to_free = strbuf_detach(&p_uq, NULL);
}
/*
@@ -136,6 +136,7 @@ static void mktree_line(char *buf, size_t len, int nul_term_line, int allow_miss
}
append_to_tree(mode, sha1, path);
+ free(to_free);
}
int cmd_mktree(int ac, const char **av, const char *prefix)
diff --git a/builtin/name-rev.c b/builtin/name-rev.c
index 1bf4cc4..b7afffe 100644
--- a/builtin/name-rev.c
+++ b/builtin/name-rev.c
@@ -28,6 +28,7 @@ static void name_rev(struct commit *commit,
struct rev_name *name = (struct rev_name *)commit->util;
struct commit_list *parents;
int parent_number = 1;
+ char *to_free = NULL;
parse_commit(commit);
@@ -35,7 +36,7 @@ static void name_rev(struct commit *commit,
return;
if (deref) {
- tip_name = xstrfmt("%s^0", tip_name);
+ tip_name = to_free = xstrfmt("%s^0", tip_name);
if (generation)
die("generation: %d, but deref?", generation);
@@ -53,8 +54,10 @@ copy_data:
name->taggerdate = taggerdate;
name->generation = generation;
name->distance = distance;
- } else
+ } else {
+ free(to_free);
return;
+ }
for (parents = commit->parents;
parents;
diff --git a/builtin/pack-redundant.c b/builtin/pack-redundant.c
index 72c8158..cb1df1c 100644
--- a/builtin/pack-redundant.c
+++ b/builtin/pack-redundant.c
@@ -442,6 +442,7 @@ static void minimize(struct pack_list **min)
/* return if there are no objects missing from the unique set */
if (missing->size == 0) {
*min = unique;
+ free(missing);
return;
}
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index eb8b64b..b1706a5 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -1028,7 +1028,8 @@ static const char *update(struct command *cmd, struct shallow_info *si)
{
const char *name = cmd->ref_name;
struct strbuf namespaced_name_buf = STRBUF_INIT;
- const char *namespaced_name, *ret;
+ static char *namespaced_name;
+ const char *ret;
struct object_id *old_oid = &cmd->old_oid;
struct object_id *new_oid = &cmd->new_oid;
@@ -1039,6 +1040,7 @@ static const char *update(struct command *cmd, struct shallow_info *si)
}
strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name);
+ free(namespaced_name);
namespaced_name = strbuf_detach(&namespaced_name_buf, NULL);
if (is_ref_checked_out(namespaced_name)) {
diff --git a/builtin/worktree.c b/builtin/worktree.c
index 11f90d6..793306e 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -414,9 +414,11 @@ static void show_worktree(struct worktree *wt, int path_maxlen, int abbrev_len)
find_unique_abbrev(wt->head_sha1, DEFAULT_ABBREV));
if (wt->is_detached)
strbuf_addstr(&sb, "(detached HEAD)");
- else if (wt->head_ref)
- strbuf_addf(&sb, "[%s]", shorten_unambiguous_ref(wt->head_ref, 0));
- else
+ else if (wt->head_ref) {
+ char *ref = shorten_unambiguous_ref(wt->head_ref, 0);
+ strbuf_addf(&sb, "[%s]", ref);
+ free(ref);
+ } else
strbuf_addstr(&sb, "(error)");
}
printf("%s\n", sb.buf);