Merge pull request #18506 from keszybz/fuzz-systemctl-parse-argv

Fuzzer for systemctl argline parsing
2021-02-11 00:29:22 +09:00
parent bbe05f94f1 40a49f127e
commit 9a67c080b0
10 changed files with 96 additions and 23 deletions
@@ -38,18 +38,10 @@ int utmp_get_runlevel(int *runlevel, int *previous) {
         * very new and not apply to the current script being executed. */

        e = getenv("RUNLEVEL");
-        if (e && e[0] > 0) {
+        if (!isempty(e)) {
                *runlevel = e[0];
-
-                if (previous) {
-                        /* $PREVLEVEL seems to be an Upstart thing */
-
-                        e = getenv("PREVLEVEL");
-                        if (e && e[0] > 0)
-                                *previous = e[0];
-                        else
-                                *previous = 0;
-                }
+                if (previous)
+                        *previous = 0;

                return 0;
        }