Srs tcp_table(5) daemon.

[apps/pfixtools.git] / common.c

diff --git a/common.c b/common.c
new file mode 100644 (file)
index 0000000..520e77f
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+++ b/common.c
@@ -0,0 +1,91 @@
+/******************************************************************************/
+/*          postlicyd: a postfix policy daemon with a lot of features         */
+/*          ~~~~~~~~~                                                         */
+/*  ________________________________________________________________________  */
+/*                                                                            */
+/*  Redistribution and use in source and binary forms, with or without        */
+/*  modification, are permitted provided that the following conditions        */
+/*  are met:                                                                  */
+/*                                                                            */
+/*  1. Redistributions of source code must retain the above copyright         */
+/*     notice, this list of conditions and the following disclaimer.          */
+/*  2. Redistributions in binary form must reproduce the above copyright      */
+/*     notice, this list of conditions and the following disclaimer in the    */
+/*     documentation and/or other materials provided with the distribution.   */
+/*  3. The names of its contributors may not be used to endorse or promote    */
+/*     products derived from this software without specific prior written     */
+/*     permission.                                                            */
+/*                                                                            */
+/*  THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND   */
+/*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE     */
+/*  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR        */
+/*  PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS    */
+/*  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR    */
+/*  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF      */
+/*  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS  */
+/*  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN   */
+/*  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)   */
+/*  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF    */
+/*  THE POSSIBILITY OF SUCH DAMAGE.                                           */
+/******************************************************************************/
+
+/*
+ * Copyright © 2007 Pierre Habouzit
+ */
+
+#include "common.h"
+
+sig_atomic_t cleanexit = false;
+sig_atomic_t sigint    = false;
+sig_atomic_t sighup    = false;
+
+void common_sighandler(int sig)
+{
+    static time_t lastintr = 0;
+    time_t now = time(NULL);
+
+    switch (sig) {
+      case SIGINT:
+        if (sigint) {
+            if (now - lastintr >= 1)
+                break;
+        } else {
+            lastintr = now;
+            sigint   = true;
+        }
+        return;
+
+      case SIGTERM:
+        break;
+
+      case SIGHUP:
+        sighup = true;
+        return;
+
+      default:
+        return;
+    }
+
+    syslog(LOG_ERR, "Killed...");
+    exit(-1);
+}
+
+void common_initialize(void)
+{
+    extern initcall_t __madinit_start, __madinit_end;
+
+    initcall_t *call_p = &__madinit_start;
+    while (call_p < &__madinit_end) {
+        (*call_p++)();
+    }
+}
+
+void common_shutdown(void)
+{
+    extern exitcall_t __madexit_start, __madexit_end;
+
+    exitcall_t *call_p = &__madexit_end;
+    while (call_p > &__madexit_start) {
+        (*--call_p)();
+    }
+}