execute: only reset those signals to the default we really need to reset to the default

1 files changed, 47 insertions, 2 deletions

diff --git a/src/util.c b/src/util.c
index 5c1e16ab6..47b1b443f 100644
--- a/src/util.c
+++ b/src/util.c
@@ -1735,14 +1735,59 @@ int release_terminal(void) {
         return r;
 }
 
-int ignore_signal(int sig) {
+int sigaction_many(const struct sigaction *sa, ...) {
+        va_list ap;
+        int r = 0, sig;
+
+        va_start(ap, sa);
+        while ((sig = va_arg(ap, int)) > 0)
+                if (sigaction(sig, sa, NULL) < 0)
+                        r = -errno;
+        va_end(ap);
+
+        return r;
+}
+
+int ignore_signals(int sig, ...) {
         struct sigaction sa;
+        va_list ap;
+        int r = 0;
 
         zero(sa);
         sa.sa_handler = SIG_IGN;
         sa.sa_flags = SA_RESTART;
 
-        return sigaction(sig, &sa, NULL);
+        if (sigaction(sig, &sa, NULL) < 0)
+                r = -errno;
+
+        va_start(ap, sig);
+        while ((sig = va_arg(ap, int)) > 0)
+                if (sigaction(sig, &sa, NULL) < 0)
+                        r = -errno;
+        va_end(ap);
+
+        return r;
+}
+
+int default_signals(int sig, ...) {
+        struct sigaction sa;
+        va_list ap;
+        int r = 0;
+
+        zero(sa);
+        sa.sa_handler = SIG_DFL;
+        sa.sa_flags = SA_RESTART;
+
+        if (sigaction(sig, &sa, NULL) < 0)
+                r = -errno;
+
+        va_start(ap, sig);
+        while ((sig = va_arg(ap, int)) > 0)
+                if (sigaction(sig, &sa, NULL) < 0)
+                        r = -errno;
+        va_end(ap);
+
+        return r;
 }
 
 int close_pipe(int p[]) {