1200字范文 > windows linux C/C++获取操作系统 CPU 内存信息硬盘 IP和MAC

windows linux C/C++获取操作系统 CPU 内存信息硬盘 IP和MAC

时间：2022-03-31 18:41:34

Windows

操作系统和内存信息在windows下通过系统的API来获取，CPU信息则需要需要通过底层CPUID指令取得

代码：

#include <iostream> #include <string>#include <string.h>#include <winsock2.h> // include must before window.h#include <iphlpapi.h>#include <windows.h> #pragma comment(lib, "iphlpapi.lib")#pragma warning(disable: 4996) // avoid GetVersionEx to be warned// ***** global macros ***** //static const int kMaxInfoBuffer = 256;#define GBYTES 1073741824 #define MBYTES 1048576 #define KBYTES 1024 #define DKBYTES 1024.0 // ---- get os info ---- //void getOsInfo(){// get os name according to version numberOSVERSIONINFO osver = { sizeof(OSVERSIONINFO) };GetVersionEx(&osver);std::string os_name;if (osver.dwMajorVersion == 5 && osver.dwMinorVersion == 0)os_name = "Windows 2000";else if (osver.dwMajorVersion == 5 && osver.dwMinorVersion == 1)os_name = "Windows XP";else if (osver.dwMajorVersion == 6 && osver.dwMinorVersion == 0)os_name = "Windows ";else if (osver.dwMajorVersion == 5 && osver.dwMinorVersion == 2)os_name = "windows vista";else if (osver.dwMajorVersion == 6 && osver.dwMinorVersion == 1)os_name = "windows 7";else if (osver.dwMajorVersion == 6 && osver.dwMinorVersion == 2)os_name = "windows 10";std::cout << "os name: " << os_name << std::endl;std::cout << "os version: " << osver.dwMajorVersion << '.' << osver.dwMinorVersion << std::endl;}// ---- get cpu info ---- //#ifdef _WIN64// method 2: usde winapi, works for x86 and x64#include <intrin.h>void getCpuInfo(){int cpuInfo[4] = {-1};char cpu_manufacture[32] = { 0 };char cpu_type[32] = { 0 };char cpu_freq[32] = { 0 };__cpuid(cpuInfo, 0x80000002);memcpy(cpu_manufacture, cpuInfo, sizeof(cpuInfo));__cpuid(cpuInfo, 0x80000003);memcpy(cpu_type, cpuInfo, sizeof(cpuInfo));__cpuid(cpuInfo, 0x80000004);memcpy(cpu_freq, cpuInfo, sizeof(cpuInfo));std::cout << "CPU manufacture: " << cpu_manufacture << std::endl;std::cout << "CPU type: " << cpu_type << std::endl;std::cout << "CPU main frequency: " << cpu_freq << std::endl;}#else// mothed 1: this kind asm embedded in code only works in x86 build// save 4 register variablesDWORD deax;DWORD debx;DWORD decx;DWORD dedx;// init cpu in assembly languagevoid initCpu(DWORD veax){__asm{mov eax, veaxcpuidmov deax, eaxmov debx, ebxmov decx, ecxmov dedx, edx}}long getCpuFreq(){int start, over;_asm{RDTSCmov start, eax}Sleep(50);_asm{RDTSCmov over, eax}return (over - start) / 50000;}std::string getManufactureID(){char manuID[25];memset(manuID, 0, sizeof(manuID));initCpu(0);memcpy(manuID + 0, &debx, 4); // copy to arraymemcpy(manuID + 4, &dedx, 4);memcpy(manuID + 8, &decx, 4);return manuID;}std::string getCpuType(){const DWORD id = 0x80000002; // start 0x80000002 end to 0x80000004char cpuType[49];memset(cpuType, 0, sizeof(cpuType));for (DWORD t = 0; t < 3; t++){initCpu(id + t);memcpy(cpuType + 16 * t + 0, &deax, 4);memcpy(cpuType + 16 * t + 4, &debx, 4);memcpy(cpuType + 16 * t + 8, &decx, 4);memcpy(cpuType + 16 * t + 12, &dedx, 4);}return cpuType;}void getCpuInfo(){std::cout << "CPU manufacture: " << getManufactureID() << std::endl;std::cout << "CPU type: " << getCpuType() << std::endl;std::cout << "CPU main frequency: " << getCpuFreq() << "MHz" << std::endl;}#endif// ---- get memory info ---- //void getMemoryInfo(){std::string memory_info;MEMORYSTATUSEX statusex;statusex.dwLength = sizeof(statusex);if (GlobalMemoryStatusEx(&statusex)){unsigned long long total = 0, remain_total = 0, avl = 0, remain_avl = 0;double decimal_total = 0, decimal_avl = 0;remain_total = statusex.ullTotalPhys % GBYTES;total = statusex.ullTotalPhys / GBYTES;avl = statusex.ullAvailPhys / GBYTES;remain_avl = statusex.ullAvailPhys % GBYTES;if (remain_total > 0)decimal_total = (remain_total / MBYTES) / DKBYTES;if (remain_avl > 0)decimal_avl = (remain_avl / MBYTES) / DKBYTES;decimal_total += (double)total;decimal_avl += (double)avl;char buffer[kMaxInfoBuffer];sprintf_s(buffer, kMaxInfoBuffer, "total %.2f GB (%.2f GB available)", decimal_total, decimal_avl);memory_info.append(buffer);}std::cout << memory_info << std::endl;}// ---- get harddisk info ---- //std::string execCmd(const char *cmd){char buffer[128] = { 0 };std::string result;FILE *pipe = _popen(cmd, "r");if (!pipe) throw std::runtime_error("_popen() failed!");while (!feof(pipe)){if (fgets(buffer, 128, pipe) != NULL)result += buffer;}_pclose(pipe);return result;}void getHardDiskInfo(){std::string hd_seiral = execCmd("wmic path win32_physicalmedia get SerialNumber");std::cout << "HardDisk Serial Number: " << hd_seiral << std::endl;}// ---- get network info ---- //void getNetworkInfo(){// PIP_ADAPTER_INFO struct contains network informationPIP_ADAPTER_INFO pIpAdapterInfo = new IP_ADAPTER_INFO();unsigned long adapter_size = sizeof(IP_ADAPTER_INFO);int ret = GetAdaptersInfo(pIpAdapterInfo, &adapter_size);if (ret == ERROR_BUFFER_OVERFLOW){// overflow, use the output size to recreate the handlerdelete pIpAdapterInfo;pIpAdapterInfo = (PIP_ADAPTER_INFO)new BYTE[adapter_size];ret = GetAdaptersInfo(pIpAdapterInfo, &adapter_size);}if (ret == ERROR_SUCCESS){int card_index = 0;// may have many cards, it saved in linklistwhile (pIpAdapterInfo){std::cout << "---- " << "NetworkCard " << ++card_index << " ----" << std::endl;std::cout << "Network Card Name: " << pIpAdapterInfo->AdapterName << std::endl;std::cout << "Network Card Description: " << pIpAdapterInfo->Description << std::endl;// get IP, one card may have many IPsPIP_ADDR_STRING pIpAddr = &(pIpAdapterInfo->IpAddressList);while (pIpAddr){char local_ip[128] = { 0 };strcpy(local_ip, pIpAddr->IpAddress.String);std::cout << "Local IP: " << local_ip << std::endl;pIpAddr = pIpAddr->Next;}char local_mac[128] = { 0 };int char_index = 0;for (int i = 0; i < pIpAdapterInfo->AddressLength; i++){char temp_str[10] = { 0 };sprintf(temp_str, "%02X-", pIpAdapterInfo->Address[i]); // X for uppercase, x for lowercasestrcpy(local_mac + char_index, temp_str);char_index += 3;}local_mac[17] = '\0'; // remove tail '-'std::cout << "Local Mac: " << local_mac << std::endl;// here just need the first card infobreak;// iterate next//pIpAdapterInfo = pIpAdapterInfo->Next;}}if (pIpAdapterInfo)delete pIpAdapterInfo;}int main(int argc, char *argv[]){std::cout << "=== os information ===" << std::endl;getOsInfo();std::cout << "=== cpu infomation ===" << std::endl;getCpuInfo();std::cout << "=== memory information ===" << std::endl;getMemoryInfo();std::cout << "=== harddisk information ===" << std::endl;getHardDiskInfo();std::cout << "=== network information ===" << std::endl;getNetworkInfo();system("pause");return 0;}

结果：

===os information===

os name: windows 10

os version: 6.2

===cpu infomation===

CPU main frequency: 2612MHz

CPU manufacture: GenuineIntel

CPU type: Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz

===memory information===

total 7.86 GB (1.38 GB available)

=== harddisk information ===

HardDisk Serial Number: SerialNumber

0520B6776730A1F4

=== network information ===

---- NetworkCard 1 ----

Network Card Name: {403C08C9-5600-4BE9-8021-AAAADB63D678}

Network Card Description: Intel(R) Ethernet Connection (5) I219-LM

Local IP: 10.12.0.142

Local Mac: 50-9A-4C-14-B5-7F

Linux

linux下很多信息都是存放着系统的/proc目录下，因此读文件就可以获取到了

代码：

#include <stdio.h>#include <stdlib.h>#include <string.h>// mostly need to read the linux config files to get system info// ---- get os info ---- //void getOsInfo(){FILE *fp = fopen("/proc/version", "r");if(NULL == fp)printf("failed to open version\n");char szTest[1000] = {0};while(!feof(fp)){memset(szTest, 0, sizeof(szTest));fgets(szTest, sizeof(szTest) - 1, fp); // leave out \nprintf("%s", szTest);}fclose(fp);}// ---- get cpu info ---- //void getCpuInfo(){FILE *fp = fopen("/proc/cpuinfo", "r");if(NULL == fp)printf("failed to open cpuinfo\n");char szTest[1000] = {0};// read file line by linewhile(!feof(fp)){memset(szTest, 0, sizeof(szTest));fgets(szTest, sizeof(szTest) - 1, fp); // leave out \nprintf("%s", szTest);}fclose(fp);}// ---- get memory info ---- //void getMemoryInfo(){FILE *fp = fopen("/proc/meminfo", "r");if(NULL == fp)printf("failed to open meminfo\n");char szTest[1000] = {0};while(!feof(fp)){memset(szTest, 0, sizeof(szTest));fgets(szTest, sizeof(szTest) - 1, fp);printf("%s", szTest);}fclose(fp);}// ---- get harddisk info ---- //#include <fcntl.h>#include <sys/ioctl.h>#include <linux/hdreg.h>void getHardDiskInfo(){// use cmd, this is the only waystatic struct hd_driveid hd;int fd;if ((fd = open("/dev/sda", O_RDONLY | O_NONBLOCK)) < 0){printf("ERROR opening /dev/sda\n");return;}if (!ioctl(fd, HDIO_GET_IDENTITY, &hd)){printf("model ", hd.model);printf("HardDisk Serial Number: %.20s\n", hd.serial_no);}elseprintf("no available harddisk info");}// ---- get network info ---- //#include <ifaddrs.h>#include <sys/socket.h>#include <arpa/inet.h>#include <sys/ioctl.h>#include <linux/if.h>void getNetworkInfo(){// get ip, works for linux and mac os, best methodstruct ifaddrs *ifAddrStruct = NULL;struct ifaddrs *ifa = NULL;getifaddrs(&ifAddrStruct);for (ifa = ifAddrStruct; ifa != NULL; ifa = ifa->ifa_next){if (!ifa->ifa_addr)continue;// check if IP4if (ifa->ifa_addr->sa_family == AF_INET){void *tmpAddrPtr = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr;char local_ip[INET_ADDRSTRLEN];inet_ntop(AF_INET, tmpAddrPtr, local_ip, INET_ADDRSTRLEN);// actually only need external ipprintf("%s IP: %s\n", ifa->ifa_name, local_ip);}}if (ifAddrStruct)freeifaddrs(ifAddrStruct);// get mac, need to create socket first, may not work for mac osstruct ifreq ifr;int fd = socket(AF_INET, SOCK_DGRAM, 0);char local_mac[128] = { 0 };strcpy(ifr.ifr_name, "eth0"); // only need ethernet cardif (0 == ioctl(fd, SIOCGIFHWADDR, &ifr)){char temp_str[10] = { 0 };memcpy(temp_str, ifr.ifr_hwaddr.sa_data, 6);sprintf(local_mac, "%02x-%02x-%02x-%02x-%02x-%02x", temp_str[0]&0xff, temp_str[1]&0xff, temp_str[2]&0xff, temp_str[3]&0xff, temp_str[4]&0xff, temp_str[5]&0xff);}printf("Local Mac: %s\n", local_mac);}int main(int argc, char **argv){printf("=== os information ===\n");getOsInfo();printf("=== cpu infomation ===\n");getCpuInfo();printf("=== memory information ===\n");getMemoryInfo();printf("=== harddisk information ===\n");getHardDiskInfo();printf("=== network information ===\n");getNetworkInfo();return 0;}

结果：

===os information===

Linux version 4.8.6-300.fc25.x86_64 (mockbuild@bkernel02.) (gcc version 6.2.1 0916 (Red Hat 6.2.1-2) (GCC) ) #1 SMP Tue Nov 1 12:36:38 UTC

===cpu infomation===

processor : 0

vendor_id : GenuineIntel

cpu family : 6

model : 58

model name : Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz

stepping : 9

microcode : 0x1b

cpu MHz : 2599.755