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| #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/utsname.h> #include <string.h> #include <time.h>
#ifdef __APPLE__ #include <sys/sysctl.h> #endif
// 系统信息结构体 typedef struct { char os_name[256]; char hostname[256]; char kernel_version[256]; char architecture[256]; char distribution[256]; long uptime_seconds; int cpu_count; } extended_system_info_t;
// 获取扩展系统信息 int get_extended_system_info(extended_system_info_t* info) { struct utsname basic_info; // 获取基本系统信息 if (uname(&basic_info) == -1) { return -1; } // 复制基本信息 strncpy(info->os_name, basic_info.sysname, sizeof(info->os_name) - 1); strncpy(info->hostname, basic_info.nodename, sizeof(info->hostname) - 1); strncpy(info->kernel_version, basic_info.release, sizeof(info->kernel_version) - 1); strncpy(info->architecture, basic_info.machine, sizeof(info->architecture) - 1); // 初始化其他字段 strcpy(info->distribution, "Unknown"); info->uptime_seconds = 0; info->cpu_count = 1; // 根据不同系统获取额外信息 if (strcmp(basic_info.sysname, "Linux") == 0) { // Linux系统特有信息 // 尝试读取发行版信息 FILE* fp = fopen("/etc/os-release", "r"); if (fp) { char line[256]; while (fgets(line, sizeof(line), fp)) { if (strncmp(line, "PRETTY_NAME=", 12) == 0) { char* start = strchr(line, '"'); if (start) { char* end = strchr(start + 1, '"'); if (end) { *end = '\0'; strncpy(info->distribution, start + 1, sizeof(info->distribution) - 1); break; } } } } fclose(fp); } // 获取系统运行时间 fp = fopen("/proc/uptime", "r"); if (fp) { double uptime; if (fscanf(fp, "%lf", &uptime) == 1) { info->uptime_seconds = (long)uptime; } fclose(fp); } // 获取CPU数量 fp = fopen("/proc/cpuinfo", "r"); if (fp) { char line[256]; int cpu_count = 0; while (fgets(line, sizeof(line), fp)) { if (strncmp(line, "processor", 9) == 0) { cpu_count++; } } if (cpu_count > 0) { info->cpu_count = cpu_count; } fclose(fp); } } #ifdef __APPLE__ else if (strcmp(basic_info.sysname, "Darwin") == 0) { // macOS系统特有信息 strcpy(info->distribution, "macOS"); // 获取CPU数量 int mib[2] = {CTL_HW, HW_NCPU}; size_t len = sizeof(info->cpu_count); sysctl(mib, 2, &info->cpu_count, &len, NULL, 0); } #endif return 0; }
// 格式化显示时间 void format_uptime(long seconds, char* buffer, size_t buffer_size) { long days = seconds / 86400; long hours = (seconds % 86400) / 3600; long minutes = (seconds % 3600) / 60; if (days > 0) { snprintf(buffer, buffer_size, "%ld天 %ld小时 %ld分钟", days, hours, minutes); } else if (hours > 0) { snprintf(buffer, buffer_size, "%ld小时 %ld分钟", hours, minutes); } else { snprintf(buffer, buffer_size, "%ld分钟", minutes); } }
// 显示系统信息 void display_system_info(const extended_system_info_t* info) { printf("╔══════════════════════════════════════════════════════════════╗\n"); printf("║ 系统信息报告 ║\n"); printf("╠══════════════════════════════════════════════════════════════╣\n"); printf("║ 操作系统: %-48s ║\n", info->os_name); printf("║ 主机名称: %-48s ║\n", info->hostname); printf("║ 内核版本: %-48s ║\n", info->kernel_version); printf("║ 硬件架构: %-48s ║\n", info->architecture); printf("║ 发行版本: %-48s ║\n", info->distribution); // 显示系统运行时间 if (info->uptime_seconds > 0) { char uptime_str[64]; format_uptime(info->uptime_seconds, uptime_str, sizeof(uptime_str)); printf("║ 运行时间: %-48s ║\n", uptime_str); } printf("║ CPU核心数: %-47d ║\n", info->cpu_count); printf("╚══════════════════════════════════════════════════════════════╝\n"); }
// 生成JSON格式的系统信息 void generate_json_info(const extended_system_info_t* info) { printf("\nJSON格式系统信息:\n"); printf("{\n"); printf(" \"os_name\": \"%s\",\n", info->os_name); printf(" \"hostname\": \"%s\",\n", info->hostname); printf(" \"kernel_version\": \"%s\",\n", info->kernel_version); printf(" \"architecture\": \"%s\",\n", info->architecture); printf(" \"distribution\": \"%s\",\n", info->distribution); printf(" \"uptime_seconds\": %ld,\n", info->uptime_seconds); printf(" \"cpu_count\": %d\n", info->cpu_count); printf("}\n"); }
// 系统健康检查 void system_health_check(const extended_system_info_t* info) { printf("\n系统健康检查:\n"); printf("----------------\n"); // 检查系统类型 if (strcmp(info->os_name, "Linux") == 0) { printf("✓ Linux系统环境\n"); } else { printf("ℹ 非Linux系统: %s\n", info->os_name); } // 检查架构 if (strcmp(info->architecture, "x86_64") == 0) { printf("✓ 64位x86架构\n"); } else if (strcmp(info->architecture, "aarch64") == 0) { printf("✓ 64位ARM架构\n"); } else { printf("ℹ 其他架构: %s\n", info->architecture); } // 检查CPU数量 if (info->cpu_count >= 4) { printf("✓ 多核心系统 (%d核心)\n", info->cpu_count); } else if (info->cpu_count >= 2) { printf("✓ 双核心系统\n"); } else { printf("ℹ 单核心系统\n"); } // 检查运行时间 if (info->uptime_seconds > 0) { if (info->uptime_seconds > 86400) { // 超过一天 printf("✓ 系统稳定运行中\n"); } else { printf("ℹ 系统运行时间较短\n"); } } }
int main() { extended_system_info_t sys_info; printf("=== 跨平台系统信息工具 ===\n\n"); // 获取扩展系统信息 if (get_extended_system_info(&sys_info) == -1) { perror("获取系统信息失败"); exit(EXIT_FAILURE); } // 显示系统信息 display_system_info(&sys_info); // 系统健康检查 system_health_check(&sys_info); // 生成JSON格式信息 generate_json_info(&sys_info); // 应用场景示例 printf("\n应用场景适配:\n"); printf("----------------\n"); // 根据系统类型选择不同的处理 if (strcmp(sys_info.os_name, "Linux") == 0) { printf("→ 启用Linux优化模式\n"); // 根据发行版调整配置 if (strstr(sys_info.distribution, "Ubuntu")) { printf("→ 应用Ubuntu特定配置\n"); } else if (strstr(sys_info.distribution, "CentOS") || strstr(sys_info.distribution, "Red Hat")) { printf("→ 应用Red Hat特定配置\n"); } } else if (strcmp(sys_info.os_name, "Darwin") == 0) { printf("→ 启用macOS优化模式\n"); } else { printf("→ 使用通用配置\n"); } // 根据CPU数量调整并行度 printf("→ 建议并行任务数: %d\n", sys_info.cpu_count); printf("\n=== 工具执行完成 ===\n"); return 0; }
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