Merge branch 'master' into 'master'

fork_exec_child_setup: improve signal handling

See merge request slirp/libslirp!61

1 files changed, 8 insertions, 0 deletions

diff --git a/src/misc.c b/src/misc.c
index e6bc0a2..12487b2 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -136,6 +136,14 @@ static void fork_exec_child_setup(gpointer data)
 {
 #ifndef _WIN32
     setsid();
+
+    /* Unblock all signals and leave our exec()-ee to block what it wants */
+    sigset_t ss;
+    sigemptyset(&ss);
+    sigprocmask(SIG_SETMASK, &ss, NULL);
+
+    /* POSIX is obnoxious about SIGCHLD specifically across exec() */
+    signal(SIGCHLD, SIG_DFL);
 #endif
 }