_public_ int sd_uid_get_state(uid_t uid, char**state) {
_cleanup_free_ char *p = NULL;
char *s = NULL;
int r;
assert_return(state, -EINVAL);
r = file_of_uid(uid, &p);
if (r < 0)
return r;
r = parse_env_file(p, NEWLINE, "STATE", &s, NULL);
if (r == -ENOENT) {
free(s);
s = strdup("offline");
if (!s)
return -ENOMEM;
}
else if (r < 0) {
free(s);
return r;
}
if (isempty(s)) {
free(s);
return -EIO;
}
*state = s;
return 0;
}
static int uid_get_array(uid_t uid, const char *variable, char ***array) {
_cleanup_free_ char *p = NULL, *s = NULL;
char **a;
int r;
assert(variable);
r = file_of_uid(uid, &p);
if (r < 0)
return r;
r = parse_env_file(p, NEWLINE, variable, &s, NULL);
if (r == -ENOENT || (r >= 0 && isempty(s))) {
if (array)
*array = NULL;
return 0;
}
if (r < 0)
return r;
a = strv_split(s, " ");
if (!a)
return -ENOMEM;
strv_uniq(a);
r = strv_length(a);
if (array)
*array = a;
else
strv_free(a);
return r;
}
_public_ int sd_uid_get_display(uid_t uid, char **session) {
_cleanup_free_ char *p = NULL, *s = NULL;
int r;
assert_return(session, -EINVAL);
r = file_of_uid(uid, &p);
if (r < 0)
return r;
r = parse_env_file(p, NEWLINE, "DISPLAY", &s, NULL);
if (r < 0)
return r;
if (isempty(s))
return -ENOENT;
*session = s;
s = NULL;
return 0;
}
