picnoir
/
Systemd
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

cgroup-util: cg_get_xattr_malloc helper 

`cg_get_xattr_malloc` to read a cgroup xattr value and allocate space
to hold said value (simple helper combining existing functions).
This commit is contained in:
Anita Zhang 2020-03-17 17:47:19 -07:00
parent 613328c3e2
commit baa358df32
2 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
src/basic/cgroup-util.c
View File

@ -37,6 +37,7 @@
#include "strv.h"
#include "unit-name.h"
#include "user-util.h"
#include "xattr-util.h"
static int cg_enumerate_items(const char *controller, const char *path, FILE **_f, const char *item) {
_cleanup_free_ char *fs = NULL;
@ -605,6 +606,24 @@ int cg_get_xattr(const char *controller, const char *path, const char *name, voi
return (int) n;
}
int cg_get_xattr_malloc(const char *controller, const char *path, const char *name, char **ret) {
_cleanup_free_ char *fs = NULL;
int r;
assert(path);
assert(name);
r = cg_get_path(controller, path, NULL, &fs);
if (r < 0)
return r;
r = getxattr_malloc(fs, name, ret, false);
if (r < 0)
return r;
return r;
}
int cg_remove_xattr(const char *controller, const char *path, const char *name) {
_cleanup_free_ char *fs = NULL;
int r;

1
src/basic/cgroup-util.h
View File

@ -190,6 +190,7 @@ int cg_set_access(const char *controller, const char *path, uid_t uid, gid_t gid
int cg_set_xattr(const char *controller, const char *path, const char *name, const void *value, size_t size, int flags);
int cg_get_xattr(const char *controller, const char *path, const char *name, void *value, size_t size);
int cg_get_xattr_malloc(const char *controller, const char *path, const char *name, char **ret);
int cg_remove_xattr(const char *controller, const char *path, const char *name);
int cg_install_release_agent(const char *controller, const char *agent);