base

gms/SKBB/sdkfreebsd64/libs/libmcrypt-2.5.7/lib/xmemory.c

@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 1998,1999 Nikos Mavroyanopoulos
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/* $Id: xmemory.c,v 1.3 2001/05/17 18:58:20 nmav Exp $ */
+
+#ifndef LIBDEFS_H
+# define LIBDEFS_H
+# include <libdefs.h>
+#endif
+#include <bzero.h>
+
+#ifdef HAVE_MLOCK
+# ifdef HAVE_SYS_MMAN_H
+#  include <sys/mman.h>
+# endif
+#endif
+
+#ifdef HAVE_MLOCK
+void LOCKMEM(void *x, size_t size)
+{
+	mlock(x, size);
+}
+
+# define UNLOCKMEM(x,y) munlock(x,y)
+#else
+# define LOCKMEM(x,y)
+# define UNLOCKMEM(x,y)
+#endif
+
+#include <bzero.h>
+
+/* memory allocation */
+
+void *mxmalloc(size_t size)
+{
+	char *x;
+
+	x = malloc(size);
+
+	if (x != NULL) {
+		LOCKMEM(x, size);
+		return x;
+	}
+	return NULL;
+}
+
+void *mxcalloc(size_t nmemb, size_t size)
+{
+	char *x;
+
+	x = calloc(nmemb, size);
+	if (x != NULL) {
+		LOCKMEM(x, size);
+		return x;
+	}
+	return NULL;
+}
+
+void *mxrealloc(void *ptr, size_t size)
+{
+	char *x;
+
+	x = realloc(ptr, size);
+	if (x != NULL) {
+		LOCKMEM(x, size);
+		return x;
+	}
+	return NULL;
+}
+
+
+void mxfree(void *ptr, size_t size)
+{
+
+	Bzero(ptr, size);
+	UNLOCKMEM(ptr, size);
+	free(ptr);
+
+}