diff options
Diffstat (limited to 'src/VBox/Devices/Network/slirp/resolv_conf_parser.h')
| -rw-r--r-- | src/VBox/Devices/Network/slirp/resolv_conf_parser.h | 109 |
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 |