Now serving 100 packages, fixed gzip priority/dependents, and moved subversion to versioning.

git-svn-id: http://svn.telesphoreo.org/trunk@8 514c082c-b64e-11dc-b46d-3d985efe055d

1 files changed, 338 insertions, 0 deletions

diff --git a/data/libresolv/dnsinfo_copy.c b/data/libresolv/dnsinfo_copy.c
new file mode 100644
index 000000000..882b697b9
--- /dev/null
+++ b/data/libresolv/dnsinfo_copy.c
@@ -0,0 +1,338 @@
+/*
+ * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+ * Modification History
+ *
+ * March 9, 2004		Allan Nathanson <ajn@apple.com>
+ * - initial revision
+ */
+
+#include <stdlib.h>
+#include <mach/mach.h>
+#include <mach/mach_error.h>
+
+#include "dnsinfo.h"
+#include "dnsinfo_private.h"
+#include "shared_dns_info.h"
+
+
+static boolean_t
+add_list(void **padding, uint32_t *n_padding, int32_t count, int32_t size, void **list)
+{
+	int32_t	need;
+
+	need = count * size;
+	if (need > *n_padding) {
+		return FALSE;
+	}
+
+	*list = (need == 0) ? NULL : *padding;
+	*padding   += need;
+	*n_padding -= need;
+	return TRUE;
+}
+
+
+static _dns_config_buf_t *
+copy_dns_info()
+{
+	uint8_t			*buf	= NULL;
+	dnsDataOut_t		dataRef	= NULL;
+	mach_msg_type_number_t	dataLen	= 0;
+	mach_port_t		server;
+	kern_return_t		status;
+
+	server = _dns_configuration_server_port();
+	if (server == MACH_PORT_NULL) {
+		return NULL;
+	}
+
+	status = shared_dns_infoGet(server, &dataRef, &dataLen);
+	(void)mach_port_deallocate(mach_task_self(), server);
+	if (status != KERN_SUCCESS) {
+		mach_error("shared_dns_infoGet():", status);
+		return NULL;
+	}
+
+	if (dataRef != NULL) {
+		if (dataLen >= sizeof(_dns_config_buf_t)) {
+			_dns_config_buf_t	*config		= (_dns_config_buf_t *)dataRef;
+			uint32_t		len;
+			uint32_t		n_padding       = ntohl(config->n_padding);
+
+			len = dataLen + n_padding;
+			buf = malloc(len);
+			bcopy((void *)dataRef, buf, dataLen);
+			bzero(&buf[dataLen], n_padding);
+		}
+
+		status = vm_deallocate(mach_task_self(), (vm_address_t)dataRef, dataLen);
+		if (status != KERN_SUCCESS) {
+			mach_error("vm_deallocate():", status);
+			free(buf);
+			return NULL;
+		}
+	}
+
+	return (_dns_config_buf_t *)buf;
+}
+
+
+static dns_resolver_t *
+expand_resolver(_dns_resolver_buf_t *buf, uint32_t n_buf, void **padding, uint32_t *n_padding)
+{
+	dns_attribute_t		*attribute;
+	uint32_t		n_attribute;
+	int32_t			n_nameserver    = 0;
+	int32_t			n_search	= 0;
+	int32_t			n_sortaddr      = 0;
+	dns_resolver_t		*resolver	= (dns_resolver_t *)&buf->resolver;
+
+	if (n_buf < sizeof(_dns_resolver_buf_t)) {
+		goto error;
+	}
+
+	// initialize domain
+
+	resolver->domain = NULL;
+
+	// initialize nameserver list
+
+	resolver->n_nameserver = ntohl(resolver->n_nameserver);
+	if (!add_list(padding,
+		      n_padding,
+		      resolver->n_nameserver,
+		      sizeof(struct sockaddr *),
+		      (void **)&resolver->nameserver)) {
+		goto error;
+	}
+
+	// initialize port
+
+	resolver->port = ntohs(resolver->port);
+
+	// initialize search list
+
+	resolver->n_search = ntohl(resolver->n_search);
+	if (!add_list(padding,
+		      n_padding,
+		      resolver->n_search,
+		      sizeof(char *),
+		      (void **)&resolver->search)) {
+		goto error;
+	}
+
+	// initialize sortaddr list
+
+	resolver->n_sortaddr = ntohl(resolver->n_sortaddr);
+	if (!add_list(padding,
+		      n_padding,
+		      resolver->n_sortaddr,
+		      sizeof(dns_sortaddr_t *),
+		      (void **)&resolver->sortaddr)) {
+		goto error;
+	}
+
+	// initialize options
+
+	resolver->options = NULL;
+
+	// initialize timeout
+
+	resolver->timeout = ntohl(resolver->timeout);
+
+	// initialize search_order
+
+	resolver->search_order = ntohl(resolver->search_order);
+
+	// process resolver buffer "attribute" data
+
+	n_attribute = n_buf - sizeof(_dns_resolver_buf_t);
+	attribute   = (dns_attribute_t *)&buf->attribute[0];
+	if (n_attribute != ntohl(buf->n_attribute)) {
+		goto error;
+	}
+
+	while (n_attribute >= sizeof(dns_attribute_t)) {
+		int32_t	attribute_length	= ntohl(attribute->length);
+
+		switch (ntohl(attribute->type)) {
+			case RESOLVER_ATTRIBUTE_DOMAIN :
+				resolver->domain = (char *)&attribute->attribute[0];
+				break;
+
+			case RESOLVER_ATTRIBUTE_ADDRESS :
+				resolver->nameserver[n_nameserver++] = (struct sockaddr *)&attribute->attribute[0];
+				break;
+
+			case RESOLVER_ATTRIBUTE_SEARCH :
+				resolver->search[n_search++] = (char *)&attribute->attribute[0];
+				break;
+
+			case RESOLVER_ATTRIBUTE_SORTADDR :
+				resolver->sortaddr[n_sortaddr++] = (dns_sortaddr_t *)&attribute->attribute[0];
+				break;
+
+			case RESOLVER_ATTRIBUTE_OPTIONS :
+				resolver->options = (char *)&attribute->attribute[0];
+				break;
+
+			default :
+				break;
+		}
+
+		attribute   = (dns_attribute_t *)((void *)attribute + attribute_length);
+		n_attribute -= attribute_length;
+	}
+
+	if ((n_nameserver != resolver->n_nameserver) ||
+	    (n_search     != resolver->n_search    ) ||
+	    (n_sortaddr   != resolver->n_sortaddr  )) {
+		goto error;
+	}
+
+	return resolver;
+
+    error :
+
+	return NULL;
+}
+
+
+static dns_config_t *
+expand_config(_dns_config_buf_t *buf)
+{
+	dns_attribute_t		*attribute;
+	dns_config_t		*config		= (dns_config_t *)buf;
+	uint32_t		n_attribute;
+	uint32_t		n_padding;
+	int32_t			n_resolver      = 0;
+	void			*padding;
+
+	// establish padding
+
+	padding   = &buf->attribute[ntohl(buf->n_attribute)];
+	n_padding = ntohl(buf->n_padding);
+
+	// initialize resolver list
+
+	config->n_resolver = ntohl(config->n_resolver);
+	if (!add_list(&padding,
+		      &n_padding,
+		      config->n_resolver,
+		      sizeof(dns_resolver_t *),
+		      (void **)&config->resolver)) {
+		goto error;
+	}
+
+	// process configuration buffer "attribute" data
+
+	n_attribute = ntohl(buf->n_attribute);
+	attribute   = (dns_attribute_t *)&buf->attribute[0];
+
+	while (n_attribute >= sizeof(dns_attribute_t)) {
+		int32_t	attribute_length	= ntohl(attribute->length);
+
+		switch (ntohl(attribute->type)) {
+			case CONFIG_ATTRIBUTE_RESOLVER : {
+				dns_resolver_t	*resolver;
+
+				// expand resolver buffer
+
+				resolver = expand_resolver((_dns_resolver_buf_t *)&attribute->attribute[0],
+							   attribute_length - sizeof(dns_attribute_t),
+							   &padding,
+							   &n_padding);
+				if (resolver == NULL) {
+					goto error;
+				}
+
+				// add resolver to config list
+
+				config->resolver[n_resolver++] = resolver;
+
+				break;
+			}
+
+			default :
+				break;
+		}
+
+		attribute   = (dns_attribute_t *)((void *)attribute + attribute_length);
+		n_attribute -= attribute_length;
+	}
+
+	if (n_resolver != config->n_resolver) {
+		goto error;
+	}
+
+	return config;
+
+    error :
+
+	return NULL;
+}
+
+
+__private_extern__
+const char *
+dns_configuration_notify_key()
+{
+	return _dns_configuration_notify_key();
+}
+
+
+__private_extern__
+dns_config_t *
+dns_configuration_copy()
+{
+	_dns_config_buf_t	*buf;
+	dns_config_t		*config;
+
+	buf = copy_dns_info();
+	if (buf == NULL) {
+		return NULL;
+	}
+
+	config = expand_config(buf);
+	if (config == NULL) {
+		free(buf);
+		return NULL;
+	}
+
+	return config;
+}
+
+
+__private_extern__
+void
+dns_configuration_free(dns_config_t *config)
+{
+	if (config == NULL) {
+		return;
+	}
+
+	free((void *)config);
+	return;
+}