1 files changed, 93 insertions, 0 deletions

diff --git a/libisc/assertions.c b/libisc/assertions.c
new file mode 100644
index 000000000000..08dd5f3d51f7
--- /dev/null
+++ b/libisc/assertions.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 1997-2001  Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+ * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+ * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: assertions.c,v 1.16 2001/07/16 03:52:05 mayer Exp $ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <isc/assertions.h>
+#include <isc/msgs.h>
+
+/*
+ * Forward.
+ */
+
+static void
+default_callback(const char *, int, isc_assertiontype_t, const char *);
+
+/*
+ * Public.
+ */
+
+LIBISC_EXTERNAL_DATA isc_assertioncallback_t isc_assertion_failed =
+					     default_callback;
+
+void
+isc_assertion_setcallback(isc_assertioncallback_t cb) {
+	if (cb == NULL)
+		isc_assertion_failed = default_callback;
+	else
+		isc_assertion_failed = cb;
+}
+
+const char *
+isc_assertion_typetotext(isc_assertiontype_t type) {
+	const char *result;
+
+	/*
+	 * These strings have purposefully not been internationalized
+	 * because they are considered to essentially be keywords of
+	 * the ISC development environment.
+	 */
+	switch (type) {
+	case isc_assertiontype_require:
+		result = "REQUIRE";
+		break;
+	case isc_assertiontype_ensure:
+		result = "ENSURE";
+		break;
+	case isc_assertiontype_insist:
+		result = "INSIST";
+		break;
+	case isc_assertiontype_invariant:
+		result = "INVARIANT";
+		break;
+	default:
+		result = NULL;
+	}
+	return (result);
+}
+
+/*
+ * Private.
+ */
+
+static void
+default_callback(const char *file, int line, isc_assertiontype_t type,
+		 const char *cond)
+{
+	fprintf(stderr, "%s:%d: %s(%s) %s.\n",
+		file, line, isc_assertion_typetotext(type), cond,
+		isc_msgcat_get(isc_msgcat, ISC_MSGSET_GENERAL,
+			       ISC_MSG_FAILED, "failed"));
+	fflush(stderr);
+	abort();
+	/* NOTREACHED */
+}