109 lines
2.4 KiB
C++
109 lines
2.4 KiB
C++
/*
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* \brief Libc resolv
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* \author Josef Soentgen
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* \date 2012-07-19
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*/
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/*
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* Copyright (C) 2012-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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/* Genode includes */
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#include <base/printf.h>
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#include <base/env.h>
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/* libc plugin includes */
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#include <libc-plugin/plugin.h>
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#include <libc-plugin/fd_alloc.h>
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/* libc includes */
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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extern "C" void libc_freeaddrinfo(struct ::addrinfo *);
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extern "C" int libc_getaddrinfo(const char *, const char *,
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const struct ::addrinfo *,
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struct ::addrinfo **);
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/************
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** Plugin **
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************/
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namespace {
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struct Plugin_context : Libc::Plugin_context { };
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static inline Plugin_context *context(Libc::File_descriptor *fd)
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{
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return static_cast<Plugin_context *>(fd->context);
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}
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class Plugin : public Libc::Plugin
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{
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private:
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Plugin_context _context;
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public:
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/**
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* Constructor
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*/
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Plugin() { }
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bool supports_freeaddrinfo(struct ::addrinfo *res)
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{
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return true;
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}
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bool supports_getaddrinfo(const char *node, const char *service,
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const struct ::addrinfo *hints,
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struct ::addrinfo **res)
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{
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return true;
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}
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int getaddrinfo(const char *node, const char *service,
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const struct ::addrinfo *hints,
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struct ::addrinfo **res)
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{
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return ::libc_getaddrinfo(node, service, hints, res);
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}
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void freeaddrinfo(struct ::addrinfo *res)
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{
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return ::libc_freeaddrinfo(res);
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}
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::ssize_t getdirentries(Libc::File_descriptor *fd, char *buf, ::size_t nbytes,
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::off_t *basep)
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{
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Genode::error(__FILE__, ":", __LINE__, " ", __func__, "not implemented");
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return 0UL;
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}
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void *mmap(void *addr, ::size_t length, int prot, int flags,
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Libc::File_descriptor *, ::off_t offset)
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{
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Genode::error(__FILE__, ":", __LINE__, " ", __func__, "not implemented");
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return nullptr;
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}
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int msync(void *addr, ::size_t len, int flags)
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{
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Genode::error(__FILE__, ":", __LINE__, " ", __func__, "not implemented");
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return 0;
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}
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};
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} /* unnamed namespace */
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void __attribute__((constructor)) init_libc_resolv(void)
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{
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static Plugin libc_resolv;
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}
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