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shared/path-lookup: fix leak

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CID #1354671: char **l would be leaked.

Also rename l to paths, to make the code easier to read,
and do strv deduplication immediately when extending. No need to allocate
strings to remove them a few lines down.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2016-04-13 21:10:33 -04:00
parent ea9b54f827
commit e215d211d2
1 changed files with 9 additions and 15 deletions
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24
src/shared/path-lookup.c
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@ -451,7 +451,7 @@ int lookup_paths_init(
*transient = NULL,
*persistent_control = NULL, *runtime_control = NULL;
bool append = false; /* Add items from SYSTEMD_UNIT_PATH before normal directories */
char **l = NULL;
_cleanup_strv_free_ char **paths = NULL;
const char *e;
int r;
@ -506,13 +506,12 @@ int lookup_paths_init(
/* FIXME: empty components in other places should be
* rejected. */
r = path_split_and_make_absolute(e, &l);
r = path_split_and_make_absolute(e, &paths);
if (r < 0)
return r;
} else
l = NULL;
}
if (!l || append) {
if (!paths || append) {
/* Let's figure something out. */
_cleanup_strv_free_ char **add = NULL;
@ -587,14 +586,9 @@ int lookup_paths_init(
if (!add)
return -ENOMEM;
if (l) {
r = strv_extend_strv(&l, add, false);
if (r < 0)
r = strv_extend_strv(&paths, add, true);
if (r < 0)
return r;
} else {
l = add;
add = NULL;
}
}
r = patch_root_prefix(&persistent_config, root);
@ -626,12 +620,12 @@ int lookup_paths_init(
if (r < 0)
return r;
r = patch_root_prefix_strv(l, root);
r = patch_root_prefix_strv(paths, root);
if (r < 0)
return -ENOMEM;
p->search_path = strv_uniq(l);
l = NULL;
p->search_path = strv_uniq(paths);
paths = NULL;
p->persistent_config = persistent_config;
p->runtime_config = runtime_config;