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Add sanity checks to paths in cgroup-util.c

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This is part of upstream commit

	9444b1f20e311f073864d81e913bd4f32fe95cfd

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
This commit is contained in:
Anthony G. Basile 2013-07-07 11:44:52 -04:00
parent 68db594ba6
commit c9096d0490
1 changed files with 6 additions and 6 deletions
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12
src/libudev/cgroup-util.c
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@ -169,19 +169,19 @@ static const char *normalize_controller(const char *controller) {
static int join_path(const char *controller, const char *path, const char *suffix, char **fs) {
char *t = NULL;
if (controller) {
if (path && suffix)
if (!isempty(controller)) {
if (!isempty(path) && !isempty(suffix))
t = strjoin("/sys/fs/cgroup/", controller, "/", path, "/", suffix, NULL);
else if (path)
else if (!isempty(path))
t = strjoin("/sys/fs/cgroup/", controller, "/", path, NULL);
else if (suffix)
else if (!isempty(suffix))
t = strjoin("/sys/fs/cgroup/", controller, "/", suffix, NULL);
else
t = strappend("/sys/fs/cgroup/", controller);
} else {
if (path && suffix)
if (!isempty(path) && !isempty(suffix))
t = strjoin(path, "/", suffix, NULL);
else if (path)
else if (!isempty(path))
t = strdup(path);
else
return -EINVAL;