枚举系统服务

#include <stdio.h>
#include <windows.h>

// win32应用程序
#define WIN_32_PROCESS (SERVICE_WIN32_OWN_PROCESS)

int main() {
    // 获取系统服务列表
    SC_HANDLE scHandle = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
    if (scHandle == NULL) {
        DWORD errorCode = GetLastError();
        printf("打开系统服务管理错误码：%lu \r\n", errorCode);
        switch (errorCode) {
            case ERROR_ACCESS_DENIED:
                printf("打开系统服务管理错误：%s \n", "权限限制");
                break;
            case ERROR_DATABASE_DOES_NOT_EXIST:
                printf("打开系统服务管理错误：%s \n", "数据不存在");
                break;
            default:
                printf("打开系统服务管理错误：%s \n", "未知错误");
        }
        return 0;
    }
    DWORD dwBuffSize = sizeof(ENUM_SERVICE_STATUS) * 512;
    // 枚举win32应用程序
    DWORD dwServiceType = WIN_32_PROCESS;
    DWORD dwByteNeeded, dwServicesReturned, lpResumeHandle = 0;
    ENUM_SERVICE_STATUS enumServiceStatus[512] = {0};
    BOOL ret = EnumServicesStatus(scHandle,
                                  dwServiceType,
                                  SERVICE_STATE_ALL,
                                  enumServiceStatus,
                                  dwBuffSize,
                                  &dwByteNeeded,
                                  &dwServicesReturned,
                                  &lpResumeHandle
    );
    if (ret == FALSE) {
        printf("枚举系统服务错误\n");
        return 0;
    }
    for (int i = 0; i < dwServicesReturned; ++i) {
        char desc[100] = {0};
        wsprintf(desc, "服务名：%s 展示状态：%s %lu", enumServiceStatus[i].lpServiceName, enumServiceStatus[i].lpDisplayName,enumServiceStatus[i].ServiceStatus.dwCurrentState);
        switch (enumServiceStatus[i].ServiceStatus.dwCurrentState) {
            case SERVICE_PAUSED:
                strcat(desc, " 暂停");
                break;
            case SERVICE_STOPPED:
                strcat(desc, " 停止");
                break;
            case SERVICE_RUNNING:
                strcat(desc, " 运行");
                break;
            default:
                strcat(desc, " 其他");
                break;
        }
        printf("%s\n", desc);
    }
}

输出

服务名：WdiServiceHost 展示状态：Diagnostic Service Host 4 运行

服务名：WdiSystemHost 展示状态：Diagnostic System Host 4 运行

服务名：WdNisSvc 展示状态：Microsoft Defender Antivirus Network Inspection Service 1 停止

服务名：WerSvc 展示状态：Windows Error Reporting Service 1 停止

服务名：WinDefend 展示状态：Microsoft Defender Antivirus Service 1 停止

服务名：WinHttpAutoProxySvc 展示状态：WinHTTP Web Proxy Auto-Discovery Service 4 运行

服务名：Winmgmt 展示状态：Windows Management Instrumentation 4 运行