From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 27 Jan 2010 05:17:51 +0000 (+0100)
Subject: reset signal mask when forking
X-Git-Tag: 0.git+20100605+dfd8ee-1~395
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=309bff19edec5e5a5f6c66ead3b0aa1eb55e7bc7;p=systemd

reset signal mask when forking
---

diff --git a/execute.c b/execute.c
index 5def5ce1..6b1d4a1d 100644
--- a/execute.c
+++ b/execute.c
@@ -6,6 +6,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <string.h>
+#include <signal.h>
 
 #include "execute.h"
 #include "strv.h"
@@ -121,8 +122,16 @@ int exec_spawn(const ExecCommand *command, const ExecContext *context, int *fds,
                 char **e, **f = NULL;
                 int i, r;
                 char t[16];
+                sigset_t ss;
+
                 /* child */
 
+                if (sigemptyset(&ss) < 0 ||
+                    sigprocmask(SIG_SETMASK, &ss, NULL) < 0) {
+                        r = EXIT_SIGNAL_MASK;
+                        goto fail;
+                }
+
                 umask(context->umask);
 
                 if (chdir(context->directory ? context->directory : "/") < 0) {
diff --git a/execute.h b/execute.h
index d339af93..b7dbe684 100644
--- a/execute.h
+++ b/execute.h
@@ -71,7 +71,8 @@ typedef enum ExitStatus {
         EXIT_EXEC,
         EXIT_MEMORY,
         EXIT_LIMITS,
-        EXIT_OOM_ADJUST
+        EXIT_OOM_ADJUST,
+        EXIT_SIGNAL_MASK
 } ExitStatus;
 
 int exec_spawn(const ExecCommand *command, const ExecContext *context, int *fds, unsigned n_fds, pid_t *ret);