| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| |
| #include "qpid/log/Statement.h" |
| #include "qpid/sys/SystemInfo.h" |
| #include "qpid/sys/posix/check.h" |
| #include <arpa/inet.h> |
| #include <sys/ioctl.h> |
| #include <sys/utsname.h> |
| #include <sys/types.h> // For FreeBSD |
| #include <sys/socket.h> // For FreeBSD |
| #include <netinet/in.h> // For FreeBSD |
| #include <ifaddrs.h> |
| #include <unistd.h> |
| #include <iostream> |
| #include <fstream> |
| #include <sstream> |
| #include <map> |
| #include <netdb.h> |
| #include <string.h> |
| |
| #ifndef HOST_NAME_MAX |
| # define HOST_NAME_MAX 256 |
| #endif |
| |
| using namespace std; |
| |
| namespace qpid { |
| namespace sys { |
| |
| long SystemInfo::concurrency() { |
| #ifdef _SC_NPROCESSORS_ONLN // Linux specific. |
| return sysconf(_SC_NPROCESSORS_ONLN); |
| #else |
| return -1; |
| #endif |
| } |
| |
| bool SystemInfo::getLocalHostname (Address &address) { |
| char name[HOST_NAME_MAX]; |
| if (::gethostname(name, sizeof(name)) != 0) |
| return false; |
| address.host = name; |
| return true; |
| } |
| |
| static const string LOOPBACK("127.0.0.1"); |
| static const string TCP("tcp"); |
| |
| // Test IPv4 address for loopback |
| inline bool IN_IS_ADDR_LOOPBACK(const ::in_addr* a) { |
| return ((ntohl(a->s_addr) & 0xff000000) == 0x7f000000); |
| } |
| |
| inline bool isLoopback(const ::sockaddr* addr) { |
| switch (addr->sa_family) { |
| case AF_INET: return IN_IS_ADDR_LOOPBACK(&((const ::sockaddr_in*)(const void*)addr)->sin_addr); |
| case AF_INET6: return IN6_IS_ADDR_LOOPBACK(&((const ::sockaddr_in6*)(const void*)addr)->sin6_addr); |
| default: return false; |
| } |
| } |
| |
| namespace { |
| inline socklen_t sa_len(::sockaddr* sa) |
| { |
| switch (sa->sa_family) { |
| case AF_INET: |
| return sizeof(struct sockaddr_in); |
| case AF_INET6: |
| return sizeof(struct sockaddr_in6); |
| default: |
| return sizeof(struct sockaddr_storage); |
| } |
| } |
| |
| inline bool isInetOrInet6(::sockaddr* sa) { |
| switch (sa->sa_family) { |
| case AF_INET: |
| case AF_INET6: |
| return true; |
| default: |
| return false; |
| } |
| } |
| typedef std::map<std::string, std::vector<std::string> > InterfaceInfo; |
| std::map<std::string, std::vector<std::string> > cachedInterfaces; |
| |
| void cacheInterfaceInfo() { |
| // Get interface info |
| ::ifaddrs* interfaceInfo; |
| QPID_POSIX_CHECK( ::getifaddrs(&interfaceInfo) ); |
| |
| char name[NI_MAXHOST]; |
| for (::ifaddrs* info = interfaceInfo; info != 0; info = info->ifa_next) { |
| |
| // Only use IPv4/IPv6 interfaces |
| if (!isInetOrInet6(info->ifa_addr)) continue; |
| |
| int rc=::getnameinfo(info->ifa_addr, sa_len(info->ifa_addr), |
| name, sizeof(name), 0, 0, |
| NI_NUMERICHOST); |
| if (rc >= 0) { |
| std::string address(name); |
| cachedInterfaces[info->ifa_name].push_back(address); |
| } else { |
| throw qpid::Exception(QPID_MSG(gai_strerror(rc))); |
| } |
| } |
| ::freeifaddrs(interfaceInfo); |
| } |
| } |
| |
| bool SystemInfo::getInterfaceAddresses(const std::string& interface, std::vector<std::string>& addresses) { |
| if ( cachedInterfaces.empty() ) cacheInterfaceInfo(); |
| InterfaceInfo::iterator i = cachedInterfaces.find(interface); |
| if ( i==cachedInterfaces.end() ) return false; |
| std::copy(i->second.begin(), i->second.end(), std::back_inserter(addresses)); |
| return true; |
| } |
| |
| void SystemInfo::getInterfaceNames(std::vector<std::string>& names ) { |
| if ( cachedInterfaces.empty() ) cacheInterfaceInfo(); |
| |
| for (InterfaceInfo::const_iterator i = cachedInterfaces.begin(); i!=cachedInterfaces.end(); ++i) { |
| names.push_back(i->first); |
| } |
| } |
| |
| void SystemInfo::getSystemId (std::string &osName, |
| std::string &nodeName, |
| std::string &release, |
| std::string &version, |
| std::string &machine) |
| { |
| struct utsname _uname; |
| if (uname (&_uname) == 0) |
| { |
| osName = _uname.sysname; |
| nodeName = _uname.nodename; |
| release = _uname.release; |
| version = _uname.version; |
| machine = _uname.machine; |
| } |
| } |
| |
| uint32_t SystemInfo::getProcessId() |
| { |
| return (uint32_t) ::getpid(); |
| } |
| |
| uint32_t SystemInfo::getParentProcessId() |
| { |
| return (uint32_t) ::getppid(); |
| } |
| |
| // Linux specific (Solaris has quite different stuff in /proc) |
| string SystemInfo::getProcessName() |
| { |
| string value; |
| |
| ifstream input("/proc/self/status"); |
| if (input.good()) { |
| while (!input.eof()) { |
| string key; |
| input >> key; |
| if (key == "Name:") { |
| input >> value; |
| break; |
| } |
| } |
| input.close(); |
| } |
| |
| return value; |
| } |
| |
| // Always true. Only Windows has exception cases. |
| bool SystemInfo::threadSafeShutdown() |
| { |
| return true; |
| } |
| |
| |
| }} // namespace qpid::sys |