From: Robert Spalek <robert@ucw.cz>
Date: Thu, 24 Jun 2004 12:37:16 +0000 (+0000)
Subject: added unhandle_signal() into sighandler.c
X-Git-Tag: holmes-import~1034
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=724d132f7de291fecc65819891aa44e07abdc410;p=libucw.git

added unhandle_signal() into sighandler.c
---

diff --git a/lib/lib.h b/lib/lib.h
index 99ee39cc..c58d83da 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -215,5 +215,6 @@ extern sh_sighandler_t signal_handler[];
 
 struct sigaction;
 void handle_signal(int signum, struct sigaction *oldact);
+void unhandle_signal(int signum, struct sigaction *oldact);
 
 #endif
diff --git a/lib/lizard-safe.c b/lib/lizard-safe.c
index e265e96a..10a755ac 100644
--- a/lib/lizard-safe.c
+++ b/lib/lizard-safe.c
@@ -37,7 +37,7 @@ void
 lizard_free(struct lizard_buffer *buf)
 {
   munmap(buf->start, buf->len + PAGE_SIZE);
-  sigaction(SIGSEGV, buf->old_sigsegv_handler, NULL);
+  unhandle_signal(SIGSEGV, buf->old_sigsegv_handler);
   xfree(buf->old_sigsegv_handler);
   xfree(buf);
 }
diff --git a/lib/sighandler.c b/lib/sighandler.c
index 3b9dfa0c..406606bb 100644
--- a/lib/sighandler.c
+++ b/lib/sighandler.c
@@ -32,3 +32,10 @@ handle_signal(int signum, struct sigaction *oldact)
   if (sigaction(signum, &act, oldact) < 0)
     die("sigaction: %m");
 }
+
+void
+unhandle_signal(int signum, struct sigaction *oldact)
+{
+  if (sigaction(signum, oldact, NULL) < 0)
+    die("sigaction: %m");
+}