KDK_GET_HARD_DISK_SIZE(3)

✨ KDK_GET_HARD_DISK_SIZE(3) ✨

okay bestie, so this is a page from the Library Functions Manual, and today we're getting into kdk_get_hard_disk_size 💖 it's giving "how big is this disk actually" energy, and honestly? obsessed.

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🌸 NAME 🌸

kdk_get_hard_disk_size — 获取硬盘大小 (get hard disk size, for the non-Chinese speakers in the chat 🫶)

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🎀 SYNOPSIS 🎀

#include <libkydiskinfo.h>

extern char* kdk_get_hard_disk_size(const char *diskname);

and bestie, don't forget the link step, no cap:

Link with -lkydiskinfo.

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🦋 Detailed Description 🦋

So here's the tea 💅 you hand it a diskname — that's the specified disk name — like an absolute path such as /dev/sda, or a value that the kdk_get_hard_disk() function returns as an element, and it uses that to go fetch the hard disk size info for you. literally that's the whole vibe. 🔥

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👑 RETURN VALUE 👑

• On success — it returns the hard disk size of type char*, in MIB ✨ and heads up bestie, the returned string needs to be released by free — like, actually free it, don't just leave it there being mysterious 🙈
• On error — it returns NULL.

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🌈 EXAMPLES 🌈

here's the full lil demo program, copied exactly because we do not touch the code, ever:

#include "libkydiskinfo.h"
#include <stdio.h>
#include <stdlib.h>

static void display_disk_info(kdk_diskinfo *di)
{
    printf("---------------%s------------------0, di->name);
    printf("Disk Sectors:%llu0, di->sectors_num);
    printf("Disk Sector Size:%u0, di->sector_size);
    printf("Disk Size:%f MiB0, di->total_size_MiB);
    printf("Disk Model:%s0, di->model ? di->model : "None");
    printf("Disk Serial:%s0, di->serial ? di->serial : "None");
    printf("Disk Partition Number:%u0, di->partition_nums);
    printf("Disk Type:%d0, di->disk_type);
    printf("Disk fwrev:%s0, di->fwrev);
}

static void display_disk_list(char **disklist)
{
    int count = 0;
    while (disklist[count])
    {
        printf("No. %d %s0, count + 1, disklist[count]);
        count ++;
    }
}

int main()
{
    char **disklist = kdk_get_disklist();
    // display_disk_list(disklist);
    for (int i = 0; disklist[i]; i++)
    {
        kdk_diskinfo *sdainfo = kdk_get_diskinfo(disklist[i]);
        if (!sdainfo)
        {
            printf("[%s]Get disk info error.0, disklist[i]);
            continue;
        }

        display_disk_info(sdainfo);

        kdk_free_diskinfo(sdainfo);
    }
    kdk_free_disklist(disklist);

    char **di = kdk_get_hard_disk();
    size_t num = 0;
    while (di[num])
    {
        printf("No. %ld %s0, num + 1, di[num]);
        char *res = kdk_get_hard_disk_size(di[num]);
        printf("容量 = %s0, res);
        free(res);

        res = kdk_get_hard_fwrev(di[num]);
        printf("固态版本 = %s0, res);
        free(res);

        res = kdk_get_hard_vendor(di[num]);
        printf("厂商 = %s0, res);
        free(res);

        res = kdk_get_hard_type(di[num]);
        printf("类型 = %s0, res);
        free(res);

        res = kdk_get_hard_model(di[num]);
        printf("型号 = %s0, res);
        free(res);

        res =kdk_get_hard_serial(di[num]);
        printf("序列号 = %s0, res);
        free(res);

        num ++;
    }
    kdk_free_disklist(di);

    return 0;
}

see how every single res gets its free(res)? that's the main character energy we're looking for, periodt 💅

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⭐ CONFORMING TO ⭐

These functions are as per the withdrawn POSIX.1e draft specification. (withdrawn!! rip to that draft, but we move 💀)

The following functions are Linux extensions:

• kdk_get_hard_disk()
• kdk_free_disklist()
• kdk_get_hard_fwrev()
• kdk_get_hard_type()
• kdk_get_hard_model()
• kdk_get_hard_serial()
• kdk_get_hard_vendor()

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💜 SEE ALSO 💜

• kdk_free_disklist(3)
• kdk_get_hard_fwrev(3)
• kdk_get_hard_type(3)
• kdk_get_hard_model(3)
• kdk_get_hard_serial(3)
• kdk_get_hard_vendor(3)
• kdk_get_hard_disk(3)

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and that's the whole page bestie!! 🎀 this one's from the Linux Programmer's Manual, dated Thu Aug 10 2023 — go forth, read your disk sizes, free your strings, and slay 💖✨🦋