KDK_SYSTEM_GET_EUSER_LOGIN_TIME(3)

🌸 KDK_SYSTEM_GET_EUSER_LOGIN_TIME 💅

okay bestie, welcome to the KDK_SYSTEM..._LOGIN_TIME(3) page from the Library Functions Manual — yes the header truncates it like that, we don't make the rules, we just slay within them. this one lives in section 3, the library-functions section, so it's a C function you call, not a command you type. 🫶

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✨ NAME ✨

kdk_system_get_eUser_login_time — 获取当前登录用户的登录时间

translation for the girlies who don't read 中文 (yet): it grabs the login time of the currently logged-on user. that's the whole personality. 💖

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🦋 SYNOPSIS 🦋

#include <libkysysinfo.h>

extern char* kdk_system_get_eUser_login_time();

Link with -lkysysinfo. like, don't forget the linker flag, she will NOT link herself, she's not that kind of girl. 💅

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🌈 DETAILED DESCRIPTION 🌈

the main character function of this interface is literally just: get the logon time of the currently logged-on user. that's it. that's the job. she wakes up, she finds out when you logged in, she goes home. 👑

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⭐ RETURN VALUE ⭐

• on success 💖 — returns the logon time of the currently logged-on user, type char*. the returned string needs to be released by free. yes bestie, YOU free it. she is not freeing herself. she handed you the keys, now you park the car. 🚗✨
• on error 💀 — returns NULL.

🚨 reminder that matters: if you don't free that string, that's a leak, and leaks are not the vibe. 🫠

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🎀 EXAMPLES 🎀

here's the full demo, copied exactly, character for character, no notes (okay one note: yes, there are some 0 where you'd expect a newline — that's what the page says, we reproduce it faithfully, we do not "fix" other people's art 🙈):

#include <libkysysinfo.h>
#include <stdio.h>
#include <stdlib.h>

int main()
{
    char *res = kdk_system_get_architecture();
    printf("架构：%s0, res);
    free(res);
    res = kdk_system_get_systemName();
    printf("系统名称：%s0, res);
    free(res);
    res = kdk_system_get_version(0);
    printf("系统简略版本：%s0, res);
    free(res);
    res = kdk_system_get_version(1);
    printf("系统详细版本：%s0, res);
    free(res);
    res = kdk_system_get_kernelVersion();
    printf("内核版本：%s0, res);
    free(res);
    res = kdk_system_get_serialNumber();
    printf("序列号：%s0, res);
    free(res);
    int p;
    int d;
    int act = kdk_system_get_activationStatus(&p,&d);
    printf("--------------0);
    printf("激活状态码：%d0,act);
    printf("激活状态：%s0, act == 1 ? "已激活" : act == 0 ? "未激活" : "已过期");

    res = kdk_system_get_eUser();
    printf("当前用户：%s0, res);
    // free(res);

    res = kdk_system_get_eUser_login_time();
    printf("登录时间：%s0, res);

    res = kdk_system_get_projectName();
    printf("项目编号名：%s0, res);
    free(res);
    int zyj = kdk_system_is_zyj();
    printf("专用机：%s0, zyj == 0 ? "非专用机":"专用机");

    res = kdk_system_get_hostVirtType();
    printf("虚拟机类型：%s0, res);
    free(res);

    res = kdk_system_get_hostCloudPlatform();
    printf("云平台类型：%s0, res);
    free(res);

    version_t test = kdk_system_get_version_detaile( );
    printf("test.os_version = %s0,test.os_version);
    printf("test.update_version = %s0,test.update_version);

    char** name = kdk_system_get_resolving_power();
    // printf("name = %s0, name);
    size_t count = 0;
    while (name[count])
    {
        printf("No. %d %s0, count + 1, name[count]);
        count ++;
    }
    kdk_resolving_freeall(name);

    char *ver = kdk_system_get_systemCategory();
    printf("系统硬件版本类别 = %s0, ver);
    free(ver);

    // ver = kdk_system_get_cloudPlatformType();
    // printf("云平台类型 = %s0, ver);
    // free(ver);

    char **ud_time = kdk_system_get_startup_time();
    count = 0;
    while (ud_time[count])
    {
        printf("开机时间 = %s0, ud_time[count]);
        count++;
    }
    kdk_resolving_freeall(ud_time);

    ud_time = kdk_system_get_shutdown_time();
    count = 0;
    while (ud_time[count])
    {
        printf("关机时间 = %s0, ud_time[count]);
        count++;
    }
    kdk_resolving_freeall(ud_time);

    res = kdk_get_host_vendor();
    printf("整机制造商 = %s0, res);
    free(res);

    res = kdk_get_host_product();
    printf("整机型号 = %s0, res);
    free(res);

    res = kdk_get_host_serial();
    printf("整机序列号 = %s0, res);
    free(res);

    res = kdk_system_get_buildTime();
    printf("构建时间：%s0, res);
    free(res);

    res = kdk_system_get_hostName();
    printf("主机名：%s0, res);
    free(res);

    printf("系统位数：%d0, kdk_system_get_word());

    struct KPci *pci = kdk_hw_get_pci_info();
    struct KPci *tmp = pci;
    while (tmp)
    {
        printf("slot path : %s0, tmp->slot_path);
        printf("class name :%s0, tmp->class_name);
        printf("product name :%s0, tmp->product_name);
        printf("rev :%02x0, tmp->rev);
        printf("subsystem name :%s0, tmp->ss_name);
        printf("driver user :%s0, tmp->driver_use);
        printf("modules :");
        for(int i = 0; i < tmp->module_count; i++)
        {
            printf("%s", tmp->modules[i]);
        }
        printf("0);
        tmp = tmp->next;
    }
    kdk_hw_free_pci_info(pci);

    res = kdk_system_get_appScene();
    printf("应用场景：%s0, res);
    free(res);

    return 0;
}

🍓 notice how the kdk_system_get_eUser_login_time() call is right there in the middle, and its free(res) is commented out in the neighbourhood of kdk_system_get_eUser() — we are simply reporting what the example says, bestie, not judging. 🙈

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👑 CONFORMING TO 👑

these functions are as per the withdrawn POSIX.1e draft specification (rip to that draft, gone but not forgotten 🕯️). the following functions are Linux extensions:

kdk_system_get_systemName(), kdk_system_get_architecture(), kdk_system_get_activationStatus(), kdk_system_get_version(), kdk_system_get_serialNumber(), kdk_system_get_kernelVersion(), kdk_system_get_eUser(), kdk_system_get_projectName(), kdk_system_get_projectSubName(), kdk_system_get_productFeatures(), kdk_system_get_hostVirtType(), kdk_system_get_hostCloudPlatform(), kdk_system_is_zyj(), kdk_system_get_version_detaile(), kdk_system_get_resolving_power(), kdk_system_get_systemCategory(), kdk_system_get_startup_time(), kdk_system_get_shutdown_time(), kdk_get_host_vendor(), kdk_get_host_product(), kdk_get_host_serial(), kdk_system_get_hostName(), kdk_system_get_word(), kdk_system_get_buildTime(), kdk_resolving_freeall(), kdk_hw_get_pci_info(), kdk_hw_free_pci_info(), and kdk_system_get_appScene().

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🔥 SEE ALSO 🔥

the whole friend group, go say hi 💖:

kdk_system_get_systemName(3), kdk_system_get_architecture(3), kdk_system_get_version(3), kdk_system_get_activationStatus(3), kdk_system_get_serialNumber(3), kdk_system_get_kernelVersion(3), kdk_system_get_eUser(3), kdk_system_get_projectName(3), kdk_system_get_projectSubName(3), kdk_system_get_productFeatures(3), kdk_system_get_hostVirtType(3), kdk_system_get_hostCloudPlatform(3), kdk_system_is_zyj(3), kdk_system_get_version_detaile(3), kdk_system_get_resolving_power(3), kdk_system_get_systemCategory(3), kdk_system_get_startup_time(3), kdk_system_get_shutdown_time(3), kdk_get_host_vendor(3), kdk_get_host_product(3), kdk_get_host_serial(3), kdk_system_get_hostName(3), kdk_system_get_word(3), kdk_system_get_buildTime(3), kdk_resolving_freeall(3), kdk_hw_get_pci_info(3), kdk_hw_free_pci_info(3), and kdk_system_get_appScene(3).

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and that's the page, periodt 💅✨

this lil masterpiece comes to you from the Linux Programmer's Manual, dated Tue Sep 19 2023, filed under KDK_SYSTEM..._LOGIN_TIME(3) — screenshot it, cite it, cite me, mwah 🫶🎀