Move the world out of /zfs/ and seperate out module build tree

lib/libuutil/uu_alloc.c

@@ -0,0 +1,98 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#include "libuutil_common.h"
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void *
+uu_zalloc(size_t n)
+{
+	void *p = malloc(n);
+
+	if (p == NULL) {
+		uu_set_error(UU_ERROR_SYSTEM);
+		return (NULL);
+	}
+
+	(void) memset(p, 0, n);
+
+	return (p);
+}
+
+void
+uu_free(void *p)
+{
+	free(p);
+}
+
+char *
+uu_strdup(const char *str)
+{
+	char *buf = NULL;
+
+	if (str != NULL) {
+		size_t sz;
+
+		sz = strlen(str) + 1;
+		buf = uu_zalloc(sz);
+		if (buf != NULL)
+			(void) memcpy(buf, str, sz);
+	}
+	return (buf);
+}
+
+char *
+uu_msprintf(const char *format, ...)
+{
+	va_list args;
+	char attic[1];
+	uint_t M, m;
+	char *b;
+
+	va_start(args, format);
+	M = vsnprintf(attic, 1, format, args);
+	va_end(args);
+
+	for (;;) {
+		m = M;
+		if ((b = uu_zalloc(m + 1)) == NULL)
+			return (NULL);
+
+		va_start(args, format);
+		M = vsnprintf(b, m + 1, format, args);
+		va_end(args);
+
+		if (M == m)
+			break;		/* sizes match */
+
+		uu_free(b);
+	}
+
+	return (b);
+}