1 files changed, 23 insertions, 0 deletions

diff --git a/misc.c b/misc.c
index 2d7b2fa60..a073c9052 100644
--- a/misc.c
+++ b/misc.c
@@ -27,6 +27,7 @@
 #include "includes.h"
 RCSID("$OpenBSD: util.c,v 1.6 2000/10/27 07:32:19 markus Exp $");
 
+#include "misc.h"
 #include "ssh.h"
 #include "log.h"
 
@@ -95,3 +96,25 @@ strdelim(char **s)
 
         return (old);
 }
+
+mysig_t
+mysignal(int sig, mysig_t act)
+{
+#ifdef HAVE_SIGACTION
+        struct sigaction sa, osa;
+
+        if (sigaction(sig, 0, &osa) == -1)
+                return (mysig_t) -1;
+        if (osa.sa_handler != act) {
+                memset(&sa, 0, sizeof sa);
+                sigemptyset(&sa.sa_mask);
+                sa.sa_flags = 0;
+                sa.sa_handler = act;
+                if (sigaction(sig, &sa, 0) == -1)
+                        return (mysig_t) -1;
+        }
+        return (osa.sa_handler);
+#else
+        return (signal(sig, act));
+#endif
+}