From: Kevin Day <thekevinday@gmail.com>
Date: Wed, 19 May 2021 01:21:23 +0000 (-0500)
Subject: Bugfix: Segfault from parameter being accessed when undefined.
X-Git-Tag: 0.5.4~32
X-Git-Url: https://git.kevux.org/?a=commitdiff_plain;h=ad4ae688c586819df1eb869b785650e5c8b7986d;p=fll

Bugfix: Segfault from parameter being accessed when undefined.

The parameter is not being existence checked when calling waitpid() and try to access parameter->wait.
---

diff --git a/level_2/fll_execute/c/private-execute.c b/level_2/fll_execute/c/private-execute.c
index f56d99d..c93b220 100644
--- a/level_2/fll_execute/c/private-execute.c
+++ b/level_2/fll_execute/c/private-execute.c
@@ -320,7 +320,7 @@ extern "C" {
       }
 
       // have the parent wait for the child process to finish.
-      waitpid(id_process, (int *) result, parameter->wait);
+      waitpid(id_process, (int *) result, parameter ? parameter->wait : 0);
 
       // this must explicitly check for 0 (as opposed to checking (!result)).
       if (result != 0) {