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Diffstat (limited to 'src/utmp-wtmp.c')
-rw-r--r--src/utmp-wtmp.c78
1 files changed, 74 insertions, 4 deletions
diff --git a/src/utmp-wtmp.c b/src/utmp-wtmp.c
index 77baaffacf..41589303ba 100644
--- a/src/utmp-wtmp.c
+++ b/src/utmp-wtmp.c
@@ -92,19 +92,26 @@ int utmp_get_runlevel(int *runlevel, int *previous) {
return r;
}
-static void init_entry(struct utmpx *store, usec_t t) {
- struct utsname uts;
-
+static void init_timestamp(struct utmpx *store, usec_t t) {
assert(store);
zero(*store);
- zero(uts);
if (t <= 0)
t = now(CLOCK_REALTIME);
store->ut_tv.tv_sec = t / USEC_PER_SEC;
store->ut_tv.tv_usec = t % USEC_PER_SEC;
+}
+
+static void init_entry(struct utmpx *store, usec_t t) {
+ struct utsname uts;
+
+ assert(store);
+
+ init_timestamp(store, t);
+
+ zero(uts);
if (uname(&uts) >= 0)
strncpy(store->ut_host, uts.release, sizeof(store->ut_host));
@@ -187,6 +194,69 @@ int utmp_put_reboot(usec_t t) {
return write_entry_both(&store);
}
+static const char *sanitize_id(const char *id) {
+ size_t l;
+
+ assert(id);
+ l = strlen(id);
+
+ if (l <= sizeof(((struct utmpx*) NULL)->ut_id))
+ return id;
+
+ return id + l - sizeof(((struct utmpx*) NULL)->ut_id);
+}
+
+int utmp_put_init_process(usec_t t, const char *id, pid_t pid, pid_t sid, const char *line) {
+ struct utmpx store;
+
+ assert(id);
+
+ init_timestamp(&store, t);
+
+ store.ut_type = INIT_PROCESS;
+ store.ut_pid = pid;
+ store.ut_session = sid;
+
+ strncpy(store.ut_id, sanitize_id(id), sizeof(store.ut_id));
+
+ if (line)
+ strncpy(store.ut_line, file_name_from_path(line), sizeof(store.ut_line));
+
+ return write_entry_both(&store);
+}
+
+int utmp_put_dead_process(const char *id, pid_t pid, int code, int status) {
+ struct utmpx lookup, store, *found;
+
+ assert(id);
+
+ setutxent();
+
+ zero(lookup);
+ lookup.ut_type = INIT_PROCESS; /* looks for DEAD_PROCESS, LOGIN_PROCESS, USER_PROCESS, too */
+ strncpy(lookup.ut_id, sanitize_id(id), sizeof(lookup.ut_id));
+
+ if (!(found = getutxid(&lookup)))
+ return 0;
+
+ if (found->ut_pid != pid)
+ return 0;
+
+ zero(store);
+
+ memcpy(&store, &lookup, sizeof(store));
+ store.ut_type = DEAD_PROCESS;
+ store.ut_exit.e_termination = code;
+ store.ut_exit.e_exit = status;
+
+ zero(store.ut_user);
+ zero(store.ut_host);
+ zero(store.ut_tv);
+
+ return write_entry_both(&store);
+}
+
+
int utmp_put_runlevel(usec_t t, int runlevel, int previous) {
struct utmpx store;
int r;