From: Daan De Meyer <daan.j.demeyer@gmail.com>
Date: Thu, 2 Jul 2020 14:26:39 +0000 (+0200)
Subject: unshare --fork: Ignore SIGINT and SIGTERM in parent
X-Git-Tag: v2.36-rc2~17^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3ba6736f3a2387bd383b458636d745a96d44b398;p=thirdparty%2Futil-linux.git

unshare --fork: Ignore SIGINT and SIGTERM in parent
---

diff --git a/sys-utils/unshare.c b/sys-utils/unshare.c
index ed2eb31e80..47c468d79a 100644
--- a/sys-utils/unshare.c
+++ b/sys-utils/unshare.c
@@ -555,6 +555,9 @@ int main(int argc, char *argv[])
 		settime(monotonic, CLOCK_MONOTONIC);
 
 	if (forkit) {
+		signal(SIGINT, SIG_IGN);
+		signal(SIGTERM, SIG_IGN);
+
 		/* force child forking before mountspace binding
 		 * so pid_for_children is populated */
 		pid = fork();
@@ -602,6 +605,10 @@ int main(int argc, char *argv[])
 	if (pid) {
 		if (waitpid(pid, &status, 0) == -1)
 			err(EXIT_FAILURE, _("waitpid failed"));
+
+		signal(SIGINT, SIG_DFL);
+		signal(SIGTERM, SIG_DFL);
+
 		if (WIFEXITED(status))
 			return WEXITSTATUS(status);
 		if (WIFSIGNALED(status))