--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/instrument/JarFacade.c	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2004-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "jni.h"
+#include "manifest_info.h"
+#include "JarFacade.h"
+
+typedef struct {
+    jarAttribute* head;
+    jarAttribute* tail;
+} iterationContext;
+
+static void
+doAttribute(const char* name, const char* value, void* user_data) {
+    iterationContext* context = (iterationContext*) user_data;
+
+    jarAttribute* attribute = (jarAttribute*)malloc(sizeof(jarAttribute));
+    if (attribute != NULL) {
+        attribute->name = strdup(name);
+        if (attribute->name == NULL) {
+            free(attribute);
+        } else {
+            attribute->value = strdup(value);
+            if (attribute->value == NULL) {
+                free(attribute->name);
+                free(attribute);
+            } else {
+                attribute->next = NULL;
+                if (context->head == NULL) {
+                    context->head = attribute;
+                } else {
+                    context->tail->next = attribute;
+                }
+                context->tail = attribute;
+            }
+        }
+
+    }
+}
+
+/*
+ * Return a list of attributes from the main section of the given JAR
+ * file. Returns NULL if there is an error or there aren't any attributes.
+ */
+jarAttribute*
+readAttributes(const char* jarfile)
+{
+    int rc;
+    iterationContext context = { NULL, NULL };
+
+    rc = JLI_ManifestIterate(jarfile, doAttribute, (void*)&context);
+
+    if (rc == 0) {
+        return context.head;
+    } else {
+        freeAttributes(context.head);
+        return NULL;
+    }
+}
+
+
+/*
+ * Free a list of attributes
+ */
+void
+freeAttributes(jarAttribute* head) {
+    while (head != NULL) {
+        jarAttribute* next = (jarAttribute*)head->next;
+        free(head->name);
+        free(head->value);
+        free(head);
+        head = next;
+    }
+}
+
+/*
+ * Get the value of an attribute in an attribute list. Returns NULL
+ * if attribute not found.
+ */
+char*
+getAttribute(const jarAttribute* attributes, const char* name) {
+    while (attributes != NULL) {
+        if (strcasecmp(attributes->name, name) == 0) {
+            return attributes->value;
+        }
+        attributes = (jarAttribute*)attributes->next;
+    }
+    return NULL;
+}