From: Todd C. Miller <Todd.Miller@courtesan.com>
Date: Tue, 14 Sep 2010 13:23:28 +0000 (-0400)
Subject: Reset signal mask at sudo startup time; we need to be able to rely on
X-Git-Tag: SUDO_1_7_5~152
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1aad7ab6fcc3afc5fab74a3c6a795d4e868942fa;p=sudo

Reset signal mask at sudo startup time; we need to be able to rely on
normal signal delivery to control the child process.

--HG--
branch : 1.7
---

diff --git a/sudo.c b/sudo.c
index 0d314882f..3b9bd3f16 100644
--- a/sudo.c
+++ b/sudo.c
@@ -1057,10 +1057,15 @@ static void
 initial_setup()
 {
     int miss[3], devnull = -1;
+    sigset_t mask;
 #if defined(__linux__) || (defined(RLIMIT_CORE) && !defined(SUDO_DEVEL))
     struct rlimit rl;
 #endif
 
+    /* Reset signal mask. */
+    (void) sigfillset(&mask);
+    (void) sigprocmask(SIG_UNBLOCK, &mask, NULL);
+
 #if defined(__linux__)
     /*
      * Unlimit the number of processes since Linux's setuid() will