nspawn: require /etc/os-release only for init

[elogind.git] / src / shared / cgroup-util.c

diff --git a/src/shared/cgroup-util.c b/src/shared/cgroup-util.c
index 27eee8eacddae52da0f30baab8320f2bd6fb5f3a..e6ceb99454b8460408c64f9797b0ed884e04624c 100644 (file)
--- a/src/shared/cgroup-util.c
+++ b/src/shared/cgroup-util.c
@@ -194,12 +194,12 @@ int cg_kill(const char *controller, const char *path, int sig, bool sigcont, boo
                         if (kill(pid, sig) < 0) {
                                 if (ret >= 0 && errno != ESRCH)
                                         ret = -errno;
-                        } else if (ret == 0) {
-
+                        } else {
                                 if (sigcont)
                                         kill(pid, SIGCONT);
 
-                                ret = 1;
+                                if (ret == 0)
+                                        ret = 1;
                         }
 
                         done = false;
@@ -746,10 +746,7 @@ int cg_pid_get_path(const char *controller, pid_t pid, char **path) {
         } else
                 controller = SYSTEMD_CGROUP_CONTROLLER;
 
-        if (pid == 0)
-                fs = "/proc/self/cgroup";
-        else
-                fs = procfs_file_alloca(pid, "cgroup");
+        fs = procfs_file_alloca(pid, "cgroup");
 
         f = fopen(fs, "re");
         if (!f)
@@ -1152,7 +1149,7 @@ int cg_path_decode_unit(const char *cgroup, char **unit){
         c = strndupa(cgroup, e - cgroup);
         c = cg_unescape(c);
 
-        if (!unit_name_is_valid(c, false))
+        if (!unit_name_is_valid(c, TEMPLATE_INVALID))
                 return -EINVAL;
 
         s = strdup(c);
@@ -1335,11 +1332,10 @@ int cg_pid_get_machine_name(pid_t pid, char **machine) {
 
 int cg_path_get_session(const char *path, char **session) {
         const char *e, *n, *x;
-        char *s, *r;
+        char *s;
         size_t l;
 
         assert(path);
-        assert(session);
 
         /* Skip slices, if there are any */
         e = skip_slices(path);
@@ -1361,11 +1357,16 @@ int cg_path_get_session(const char *path, char **session) {
         if (l <= 6)
                 return -ENOENT;
 
-        r = strndup(x, l - 6);
-        if (!r)
-                return -ENOMEM;
+        if (session) {
+                char *r;
+
+                r = strndup(x, l - 6);
+                if (!r)
+                        return -ENOMEM;
+
+                *session = r;
+        }
 
-        *session = r;
         return 0;
 }
 
@@ -1373,8 +1374,6 @@ int cg_pid_get_session(pid_t pid, char **session) {
         _cleanup_free_ char *cgroup = NULL;
         int r;
 
-        assert(session);
-
         r = cg_pid_get_path_shifted(pid, NULL, &cgroup);
         if (r < 0)
                 return r;
@@ -1566,7 +1565,7 @@ int cg_slice_to_path(const char *unit, char **ret) {
         assert(unit);
         assert(ret);
 
-        if (!unit_name_is_valid(unit, false))
+        if (!unit_name_is_valid(unit, TEMPLATE_INVALID))
                 return -EINVAL;
 
         if (!endswith(unit, ".slice"))
@@ -1583,7 +1582,7 @@ int cg_slice_to_path(const char *unit, char **ret) {
 
                 strcpy(stpncpy(n, p, dash - p), ".slice");
 
-                if (!unit_name_is_valid(n, false))
+                if (!unit_name_is_valid(n, TEMPLATE_INVALID))
                         return -EINVAL;
 
                 escaped = cg_escape(n);