summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
authorLennart Poettering <lennart@poettering.net>2012-01-03 20:51:38 +0100
committerLennart Poettering <lennart@poettering.net>2012-01-03 21:08:58 +0100
commit9847946e12479b27d3ebfd024f00a6ac33ce73d3 (patch)
tree87f0a00bb27047fd8be8f0d30c0c87f880d4a373 /src
parentb72491a2fd8c237299055c636d4f748bca2b4b1f (diff)
login: introduce sd_pid_get_service()
Diffstat (limited to 'src')
-rw-r--r--src/login/libsystemd-login.sym5
-rw-r--r--src/login/sd-login.c27
-rw-r--r--src/login/sd-login.h4
3 files changed, 36 insertions, 0 deletions
diff --git a/src/login/libsystemd-login.sym b/src/login/libsystemd-login.sym
index 0d51fa76e7..bac46f4064 100644
--- a/src/login/libsystemd-login.sym
+++ b/src/login/libsystemd-login.sym
@@ -33,3 +33,8 @@ global:
local:
*;
};
+
+LIBSYSTEMD_LOGIN_38 {
+global:
+ sd_pid_get_service;
+} LIBSYSTEMD_LOGIN_31;
diff --git a/src/login/sd-login.c b/src/login/sd-login.c
index a0a56c4952..1d4368187f 100644
--- a/src/login/sd-login.c
+++ b/src/login/sd-login.c
@@ -121,6 +121,33 @@ _public_ int sd_pid_get_session(pid_t pid, char **session) {
return 0;
}
+_public_ int sd_pid_get_service(pid_t pid, char **service) {
+ int r;
+ char *cgroup, *p;
+
+ if (!service)
+ return -EINVAL;
+
+ r = pid_get_cgroup(pid, NULL, &cgroup);
+ if (r < 0)
+ return r;
+
+ if (!startswith(cgroup, "/system/")) {
+ free(cgroup);
+ return -ENOENT;
+ }
+
+ p = cgroup + 8;
+ p = strndup(p, strcspn(p, "/"));
+ free(cgroup);
+
+ if (!p)
+ return -ENOMEM;
+
+ *service = p;
+ return 0;
+}
+
_public_ int sd_pid_get_owner_uid(pid_t pid, uid_t *uid) {
int r;
char *root, *cgroup, *p, *cc;
diff --git a/src/login/sd-login.h b/src/login/sd-login.h
index 0cb0bf06bb..1d8a55e906 100644
--- a/src/login/sd-login.h
+++ b/src/login/sd-login.h
@@ -53,6 +53,10 @@ int sd_pid_get_session(pid_t pid, char **session);
* return an error for system processes. */
int sd_pid_get_owner_uid(pid_t pid, uid_t *uid);
+/* Get service name from PID. This will return an error for
+ * non-service processes. */
+int sd_pid_get_service(pid_t, char **service);
+
/* Get state from uid. Possible states: offline, lingering, online, active */
int sd_uid_get_state(uid_t uid, char**state);