Move config parser stuff into common directory for use by other binaries.

1 files changed, 51 insertions, 0 deletions

diff --git a/common/compat.c b/common/compat.c
index 9d2f53f..0c6c833 100644
--- a/common/compat.c
+++ b/common/compat.c
@@ -179,3 +179,54 @@ strlcat(char* dst, const char* src, size_t siz)
 }
 
 #endif /* HAVE_STRLCAT */
+
+#ifndef HAVE_ATEXITV
+
+typedef void (*voidfunc)(void*);
+typedef struct _exit_stack
+{
+    voidfunc func;
+    void* data;
+
+    /* We have a list of these beauties */
+    struct _exit_stack* next;
+}
+exit_stack;
+
+/* Our exit stack */
+static exit_stack* atexits = NULL;
+static int atexit_registered = 0;
+
+static void
+atexit_do_stack(void)
+{
+    exit_stack* next;
+    for(; atexits; atexits = next)
+    {
+        next = atexits->next;
+        (atexits->func)(atexits->data);
+        free(atexits);
+    }
+}
+
+void
+atexitv(voidfunc func, void* data)
+{
+    exit_stack* ae;
+
+    ASSERT(func);
+
+    ae = (exit_stack*)calloc(1, sizeof(exit_stack));
+    if(ae)
+    {
+        ae->func = func;
+        ae->data = data;
+        ae->next = atexits;
+        atexits = ae;
+
+        if(!atexit_registered)
+            atexit(atexit_do_stack);
+    }
+}
+
+#endif /* HAVE_ATEXITV */