Imported from /home/lorry/working-area/delta_VirtualBox/VirtualBox-4.3.10.tar.bz2.HEADVirtualBox-4.3.10master

1 files changed, 109 insertions, 0 deletions

diff --git a/src/VBox/Devices/Network/slirp/resolv_conf_parser.h b/src/VBox/Devices/Network/slirp/resolv_conf_parser.h
new file mode 100644
index 00000000..21353fe9
--- /dev/null
+++ b/src/VBox/Devices/Network/slirp/resolv_conf_parser.h
@@ -0,0 +1,109 @@
+/* $Id: resolv_conf_parser.h $ */
+/** @file
+ * resolv_conf_parser.h - interface to parser of resolv.conf resolver(5) 
+ */
+
+/*
+ * Copyright (C) 2014 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ */
+
+#ifndef __RESOLV_CONF_PARSER_H__
+#define __RESOLV_CONF_PARSER_H__
+
+#include <iprt/cdefs.h>
+#include <iprt/net.h>
+
+RT_C_DECLS_BEGIN
+
+#define RCPS_MAX_NAMESERVERS 3
+#define RCPS_MAX_SEARCHLIST 10
+#define RCPS_BUFFER_SIZE 256
+#define RCPS_IPVX_SIZE 47
+/**
+ * In Slirp we don't need IPv6 for general case (only for dnsproxy mode 
+ * it's potentially acceptable) 
+ */
+#define RCPSF_IGNORE_IPV6 RT_BIT(0)
+/**
+ * In Main, we perhaps don't need parsed IPv6 and IPv4, because parsed values are
+ * used in Network services.
+ */
+#define RCPSF_NO_STR2IPCONV RT_BIT(1)
+
+struct rcp_state
+{
+    uint16_t rcps_port;
+    /**
+     * Filling of this array ommited iff RCPSF_NO_STR2IPCONF in rcp_state::rcps_flags set.
+     */
+    RTNETADDR rcps_nameserver[RCPS_MAX_NAMESERVERS];
+    /**
+     * this array contains non-NULL (pointing to rcp_state::rcps_nameserver_str_buffer) iff
+     * RCPSF_NO_STR2IPCONF in rcp_state::rcps_flags set.
+     */
+    char *rcps_str_nameserver[RCPS_MAX_NAMESERVERS];
+    unsigned rcps_num_nameserver;
+    /**
+     * Shortcuts to storage, note that domain is optional
+     * and if it's missed in resolv.conf rcps_domain should be equal
+     * to rcps_search_list[0]
+     */
+    char *rcps_domain;
+    char *rcps_searchlist[RCPS_MAX_SEARCHLIST];
+    unsigned rcps_num_searchlist;
+
+    uint32_t rcps_flags;
+
+    char rcps_domain_buffer[RCPS_BUFFER_SIZE];
+    char rcps_searchlist_buffer[RCPS_BUFFER_SIZE];
+    char rcps_nameserver_str_buffer[RCPS_MAX_NAMESERVERS * RCPS_IPVX_SIZE];
+};
+
+
+/**
+ *  This function parses specified file (expected to conform resolver (5) Mac OSX or resolv.conf (3) Linux)
+ *  and fills the structure.
+ * @return 0 - on success
+ *         -1 - on fail.
+ *   <code>
+ *   struct rcp_state state;
+ *   int rc;
+ *
+ *   rc = rcp_parse(&state, "/etc/resolv.conf");
+ *   for(i = 0; rc == 0 && i != state.rcps_num_nameserver; ++i)
+ *   {
+ *      if ((state.rcps_flags & RCPSF_NO_STR2IPCONV) == 0)
+ *      {
+ *          const RTNETADDR *addr = &state.rcps_nameserver[i];
+ *
+ *          switch (state.rcps_nameserver[i].enmType)
+ *          {
+ *              case RTNETADDRTYPE_IPV4:
+ *                  RTPrintf("nameserver[%d]: [%RTnaipv4]:%d\n", i, addr->uAddr.IPv4, addr->uPort);
+ *                  break;
+ *              case RTNETADDRTYPE_IPV6:
+ *                  RTPrintf("nameserver[%d]: [%RTnaipv6]:%d\n", i, &addr->uAddr.IPv6, addr->uPort);
+ *                  break;
+ *              default:
+ *                   break;
+ *          }
+ *      }
+ *      else
+ *          RTPrintf("nameserver[%d]: %s\n", i, state.rcps_str_nameserver[i]);
+ *  }
+ *   </code>
+ *
+ */
+int rcp_parse(struct rcp_state *, const char *);
+
+RT_C_DECLS_END
+
+#endif