From: Todd C. Miller <Todd.Miller@courtesan.com>
Date: Fri, 23 Jan 2004 00:22:28 +0000 (+0000)
Subject: Add a comment describing why we need to be notified about our child
X-Git-Tag: SUDO_1_6_8~206
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2af994ada6118aadb26573a73485ec1944f28d62;p=sudo

Add a comment describing why we need to be notified about our child
stopping.
---

diff --git a/sudo_edit.c b/sudo_edit.c
index 3bdcb5743..8cd8c4638 100644
--- a/sudo_edit.c
+++ b/sudo_edit.c
@@ -236,7 +236,13 @@ int sudo_edit(argc, argv)
 	_exit(127);
     }
 
-    /* Anxious parent, waiting for letters home from camp... */
+    /*
+     * Wait for status from the child.  Most modern kernels
+     * will not let an unprivileged child process send a
+     * signal to its privileged parent to we have to request
+     * status when the child is stopped and then send the
+     * same signal to our own pid.
+     */
     do {
 #ifdef sudo_waitpid
         pid = sudo_waitpid(kidpid, &i, WUNTRACED);