From: Todd C. Miller <Todd.Miller@courtesan.com>
Date: Tue, 31 Jul 2012 17:36:48 +0000 (-0400)
Subject: When checking whether a signal is user-generated, compare si_code
X-Git-Tag: SUDO_1_8_6^2~70
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5e502bd6d6161d3c18ef2bb8a7fe2757594846af;p=sudo

When checking whether a signal is user-generated, compare si_code
against SI_USER instead of <= 0 since on HP-UX, terminal-related
signals get a code of 0.
---

diff --git a/src/exec.c b/src/exec.c
index fd5cb26ae..d93549813 100644
--- a/src/exec.c
+++ b/src/exec.c
@@ -636,7 +636,7 @@ handler_nofwd(int s, siginfo_t *info, void *context)
     unsigned char signo = (unsigned char)s;
 
     /* Only forward user-generated signals. */
-    if (info == NULL || info->si_code <= 0) {
+    if (info != NULL && info->si_code == SI_USER) {
 	/*
 	 * The pipe is non-blocking, if we overflow the kernel's pipe
 	 * buffer we drop the signal.  This is not a problem in practice.