kolibrios/programs/other/TinyHashView/thashview.c

/* Copyright (C) 2019-2020 Logaev Maxim (turbocat2001), GPLv3 */

#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <kos32sys1.h>
#include <string.h>
#include <cryptal/md5.h>
#include <cryptal/sha1.h>
#include <cryptal/sha256.h>
#include <clayer/dialog.h>
#include <clayer/boxlib.h>

#define TRUE 1;
#define FALSE 0;
#define MAX_HASH_LEN 65 // <20><><EFBFBD>ᨬ<EFBFBD><E1A8AC>쭠<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ப<EFBFBD>
#define WINDOW_W 665
#define VERSION "%s - thashview 2.6"
#define EDIT_TEXT_SIZE 0x10000000

struct kolibri_system_colors sys_color_table;

char hash_str_md5[MAX_HASH_LEN]=   "Click the 'MD5:' button to show the md5-checksum!      "; //<2F>뢮<EFBFBD> MD5
char hash_str_sha1[MAX_HASH_LEN]=  "Click the 'SHA1:' button to show the sha1-checksum!    "; //<2F>뢮<EFBFBD> SHA1
char hash_str_sha256[MAX_HASH_LEN]="Click the 'SHA256:' button to show the sha256-checksum!"; //<2F>뢮<EFBFBD> SHA256
char edit_box_buff[MAX_HASH_LEN]; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
char *filename; // <20><><EFBFBD> <20><>ࠡ<EFBFBD><E0A0A1>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD><EFBFBD> 䠩<><E4A0A9>
char *title; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>

enum MYCOLORS // <20><><EFBFBD><EFBFBD><EFBFBD>
{
    GREEN = 0x067D06 | EDIT_TEXT_SIZE,
    RED   = 0xFF0000 | EDIT_TEXT_SIZE,
    BLACK = 0x000000 | EDIT_TEXT_SIZE,
    WHITE = 0xFFFFFF,
    GREY  = 0x919191
};

edit_box hash_edit_box={WINDOW_W-140,10,121,WHITE,0,0,GREY,EDIT_TEXT_SIZE, MAX_HASH_LEN-1, edit_box_buff,NULL,ed_focus}; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> edit_box
int md5_flag=0, sha1_flag=0, sha256_flag=0; // <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD>騥 <20>뫠 <20><> 㦥 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⠭<EFBFBD> <20><><EFBFBD>஫쭠<E0AEAB> <20>㬬<EFBFBD> <20> <20>㭪樨 check_sum()

enum BUTTONS // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD>䥩<EFBFBD><E4A5A9>
{
    BTN_QUIT=1,        //<2F><>室
    BTN_MD5 = 10,      //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> md5-<2D><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20>㬬<EFBFBD>
    BTN_SHA1 = 20,     //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> sha1-<2D><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20>㬬<EFBFBD>
    BTN_SHA256 = 30,   //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> sha256-<2D><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20>㬬<EFBFBD>
    BTN_COPY_MD5= 11,  //<2F><><EFBFBD><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    BTN_COPY_SHA1= 21,
    BTN_COPY_SHA256=31,
    BTN_CMP=40,        //<2F>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD> edit_box <20> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20>㬬<EFBFBD>
    BTN_PASTE=50       //<2F><>⠢<EFBFBD><E2A0A2><EFBFBD> <20> edit_box(<28><><EFBFBD><EFBFBD> <20> ࠧࠡ<E0A0A7>⪥)
};

void notify_show(char *text)
{
   start_app("/sys/@notify", text);
}

void* safe_malloc(size_t size) // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> malloc. <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> 㢥<><E3A2A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20>訡<EFBFBD><E8A8A1> <20> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20>ணࠬ<E0AEA3><E0A0AC> <20>᫨ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20>뫠 <20>뤥<EFBFBD><EBA4A5><EFBFBD><EFBFBD>
{
    void *p=malloc(size);
    if(p==NULL)
    {
       notify_show("'Memory allocation error!' -E");
       exit(0);
    }
    else
    {
        return p;
    }
}

void global_var_init(unsigned int size)  // <20><><EFBFBD>樠<EFBFBD><E6A8A0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>ᨢ<EFBFBD>
{
  filename=safe_malloc(size);
  title=safe_malloc(size+20);
}

/* <20>㭪樨 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>樨 <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20>㬬 */
void md5_hash(FILE* input, BYTE* hash )
{
    int input_size;
    BYTE *temp_buffer;
    temp_buffer=safe_malloc(1024);
    MD5_CTX ctx;
    md5_init(&ctx);
    while((input_size = fread(temp_buffer, 1, 1024, input)) > 0){
                md5_update(&ctx, temp_buffer, input_size);
    }
    md5_final(&ctx, hash);
    free(temp_buffer);
}

void sha1_hash(FILE* input, BYTE* hash )
{
    int input_size;
    BYTE *buffer;
    buffer=safe_malloc(1024);
    SHA1_CTX ctx;
    sha1_init(&ctx);
    while((input_size = fread(buffer, 1, 1024, input)) > 0){
                sha1_update(&ctx, buffer, input_size);
    }
    sha1_final(&ctx, hash);
    free(buffer);
}

void sha256_hash(FILE* input, BYTE* hash )
{
    int input_size;
    BYTE *buffer;
    buffer=safe_malloc(1024);
    SHA256_CTX ctx;
    sha256_init(&ctx);
    while((input_size = fread(buffer, 1, 1024, input)) > 0){
                sha256_update(&ctx, buffer, input_size);
    }
    sha256_final(&ctx, hash);
    free(buffer);
}


BYTE* check_sum(int alg) // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㥬 <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20>㬬<EFBFBD> <20>ᯮ<EFBFBD><E1AFAE><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⬮<EFBFBD>
{
    FILE* input_file;
    BYTE *hash;
    input_file=fopen(filename,"rb");
    hash = safe_malloc(alg);
    switch (alg)
    {
        case MD5_BLOCK_SIZE :
            md5_hash(input_file, hash);
            md5_flag=1;
        break;

        case SHA1_BLOCK_SIZE :
            sha1_hash(input_file, hash);
            sha1_flag=1;
        break;

        case SHA256_BLOCK_SIZE :
            sha256_hash(input_file, hash);
            sha256_flag=1;
        break;
    }
    fclose(input_file);
    return hash;
}

void sprint_hash(BYTE *hash, char* hash_str, int hash_size) //<2F>८<EFBFBD><E0A5AE><EFBFBD>㥬 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> hash <20> <20><>ப<EFBFBD> hash_str
{
    char block[3];
    memset(hash_str, 0, MAX_HASH_LEN); // <20><><EFBFBD>頥<EFBFBD> <20><>ப<EFBFBD> <20><><EFBFBD> strcat
    for(int i=0; i<hash_size; i++)
    {
        sprintf(block,"%02x", hash[i]);
        strcat(hash_str,block);
    }
    free(hash);
}

void redraw_window() //<2F><><EFBFBD>㥬 <20><><EFBFBD><EFBFBD>
{
    sprintf(title,VERSION, filename); // <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
    pos_t win_pos = get_mouse_pos(0); // <20><><EFBFBD><EFBFBD>砥<EFBFBD> <20><><EFBFBD>न<EFBFBD><E0A4A8><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    begin_draw(); //<2F><>稭<EFBFBD><E7A8AD><EFBFBD> <20><>ᮢ<EFBFBD><E1AEA2><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>䥩<EFBFBD><E4A5A9> )
    sys_create_window(win_pos.x, win_pos.y, WINDOW_W, 150, title, sys_color_table.work_area, 0x14); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>.

    edit_box_draw(&hash_edit_box); // <20><><EFBFBD>㥬 edit_box

    define_button(X_W(10,60), Y_H(30,20), BTN_MD5, GREEN); // <20><>।<EFBFBD><E0A5A4>塞 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> md5
    define_button(X_W(10,60), Y_H(60,20), BTN_SHA1, GREEN);// <20><>।<EFBFBD><E0A5A4>塞 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> sha1
    define_button(X_W(10,60), Y_H(90,20), BTN_SHA256, GREEN);// <20><>।<EFBFBD><E0A5A4>塞 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> sha256

    draw_text_sys("MD5:", 15, 34, 0,   0x90000000 | sys_color_table.work_button_text); // <20><>饬 ⥪<><E2A5AA> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    draw_text_sys("SHA1:", 15, 64, 0,  0x90000000 | sys_color_table.work_button_text);
    draw_text_sys("SHA256:", 15,94, 0, 0x90000000 | sys_color_table.work_button_text);

    draw_text_sys(hash_str_md5, 80, 34, 0, 0x90000000 | sys_color_table.work_text); // <20>뢮<EFBFBD><EBA2AE><EFBFBD> <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20>㬬<EFBFBD> <20> <20><><EFBFBD><EFBFBD>
    draw_text_sys(hash_str_sha1, 80, 64, 0, 0x90000000 | sys_color_table.work_text);
    draw_text_sys(hash_str_sha256, 80, 94, 0, 0x90000000| sys_color_table.work_text);

    define_button(X_W(610,42), Y_H(30, 20), BTN_COPY_MD5, sys_color_table.work_button); // <20><>।<EFBFBD><E0A5A4>塞 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
    define_button(X_W(610,42), Y_H(60, 20), BTN_COPY_SHA1, sys_color_table.work_button);
    define_button(X_W(610,42), Y_H(90, 20), BTN_COPY_SHA256, sys_color_table.work_button);

    draw_text_sys("Copy", 615, 34, 0,   0x90000000 | sys_color_table.work_button_text); // <20><>襬 copy <20><> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD>
    draw_text_sys("Copy", 615, 64, 0,  0x90000000 | sys_color_table.work_button_text);
    draw_text_sys("Copy", 615, 94, 0, 0x90000000 | sys_color_table.work_button_text);

    define_button(X_W(592,60), Y_H(120,20), BTN_CMP, GREEN); // <20><>।<EFBFBD><E0A5A4>塞 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>⮫<EFBFBD><E2AEAB><EFBFBD><EFBFBD> <20>㬬
    draw_text_sys("Compare", 595, 124 , 0,0x90000000 | sys_color_table.work_button_text); // <20><>襬 ⥪<> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
    define_button(X_W(540, 45), Y_H(120,20), BTN_PASTE, sys_color_table.work_button); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>⠢<EFBFBD><E2A0A2> (<28><>ࠡ<EFBFBD>⠥<EFBFBD>)
    draw_text_sys("Paste", 543, 124 , 0,0x90000000 | sys_color_table.work_button_text); // <20><><EFBFBD><EFBFBD><EFBFBD> paste <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    end_draw();
}

void paste_to_edit_buffer()    // <20><>⠢<EFBFBD><E2A0A2><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
    char *temp_buff=NULL;
    if(kol_clip_num()>0)
    {
        temp_buff=kol_clip_get(kol_clip_num()-1);
        memset(edit_box_buff,0,MAX_HASH_LEN);
        if(DATA(int, temp_buff,0)>0 && DATA(int,temp_buff,4)==TEXT && DATA(int,temp_buff,8)==CP866)
        {
            strncpy(edit_box_buff,temp_buff+12, MAX_HASH_LEN-1);
            edit_box_set_text(&hash_edit_box,edit_box_buff);
            notify_show("'Pasted from clipboard!' -I");
            hash_edit_box.text_color = BLACK;
            user_free(temp_buff);
        }
    }
}

void copy_to_clipboard(char *text) // <20><><EFBFBD><EFBFBD>ૢ<EFBFBD><E0ABA2><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
    if(55!=strlen(text))
    {
        char *temp_buffer=safe_malloc(MAX_HASH_LEN+12);
        memset(temp_buffer, 0, MAX_HASH_LEN);
        DATA(char,temp_buffer,4)=TEXT;
        DATA(char,temp_buffer,8)=CP866;
        strncpy(temp_buffer+12, text, MAX_HASH_LEN-1);
        kol_clip_set(strlen(text)+12, temp_buffer);
        notify_show("'Copied to clipboard!' -I");
        free(temp_buffer);
    }
}

void print_pending_calc(char *str) // <20>뢮<EFBFBD><EBA2AE><EFBFBD> ᮮ<>饭<EFBFBD><E9A5AD> <20> ⮬ <20><><EFBFBD> <20><><EFBFBD><EFBFBD>஫쭠<E0AEAB> <20>㬬<EFBFBD><E3ACAC> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
{
  strcpy(str, "Please wait! Calculating checksum...                   ");
  redraw_window();
}

bool calc_and_cmp(char *hash_str_universal,int alg) // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>塞 <20><><EFBFBD><EFBFBD>஫<EFBFBD><E0AEAB><EFBFBD><EFBFBD> <20>㬬<EFBFBD> <20> <20>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> edit_box_buff.
{
   print_pending_calc(hash_str_universal);
   sprint_hash(check_sum(alg),hash_str_universal, alg);
   return !strcmp(edit_box_buff, hash_str_universal);
}

bool hash_compare() // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㭪<EFBFBD><E3ADAA><EFBFBD> <20><><EFBFBD> <20>ࠢ<EFBFBD><E0A0A2><EFBFBD><EFBFBD><EFBFBD>
{
   int alg=strlen(edit_box_buff)/2;

        switch (alg) // <20>᫨ <20><><EFBFBD><EFBFBD>᫥<EFBFBD><E1ABA5><EFBFBD> <20><><EFBFBD> <20><><EFBFBD>뫮
        {
        case MD5_BLOCK_SIZE:
            if(md5_flag){
                return !strcmp(edit_box_buff,hash_str_md5);
            }else{
                return calc_and_cmp(hash_str_md5,alg);
            }
        break;

        case SHA1_BLOCK_SIZE:
            if(sha1_flag){
                return !strcmp(edit_box_buff,hash_str_sha1);
            }else{
                return calc_and_cmp(hash_str_sha1,alg);
            }
        break;

        case SHA256_BLOCK_SIZE:

            if(sha256_flag){
                return !strcmp(edit_box_buff,hash_str_sha256);
            }else{
                return calc_and_cmp(hash_str_sha256,alg);
            }
        break;

        default:
            return FALSE;
        break;
        }
}

int main(int argc, char** argv)
{
    kolibri_boxlib_init(); // <20><><EFBFBD><EFBFBD>㦠<EFBFBD><E3A6A0> boxlib
    if(argc<2) // <20>᫨ <20><><EFBFBD>㬥<EFBFBD>⮢ <20><><EFBFBD>, <20><> <20><><EFBFBD><EFBFBD>᪠<EFBFBD><E1AAA0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>롮<EFBFBD><EBA1AE> 䠩<><E4A0A9>
    {
        kolibri_dialog_init(); // <20><><EFBFBD><EFBFBD>㦠<EFBFBD><E3A6A0> proc_lib(libdialog)
        open_dialog* dialog = kolibri_new_open_dialog(OPEN,0, 0, 420, 320);
        OpenDialog_init(dialog);
        OpenDialog_start(dialog); 
        if(dialog->status==SUCCESS) // <20>᫨ 䠩<> <20><><EFBFBD>࠭
        {
            global_var_init(strlen(dialog->openfile_path));
            strcpy(filename, dialog->openfile_path);  
        }
        else // <20>᫨ 䠩<> <20><> <20><><EFBFBD>࠭
        {
            notify_show("'No file selected!' -E");
            exit(0);
        }
        free(dialog);
    }
    else
    {
        global_var_init(strlen(argv[1]));
        strcpy(filename, argv[1]);
    }

    if(NULL==fopen(filename,"rb")) // <20>᫨ 䠩<><E4A0A9> <20><><EFBFBD> <20><><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD>
    {
        notify_show("'File not found!' -E");
        exit(0);
    }

    if(GetScreenSize()/65536<WINDOW_W)
    {
        notify_show("'Low screen resolution! Program will not display correctrly!' -W");
    }

    int gui_event; // <20><>६<EFBFBD><E0A5AC><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20>࠭<EFBFBD><E0A0AD><EFBFBD><EFBFBD> ᮡ<><E1AEA1><EFBFBD><EFBFBD>
    uint32_t pressed_button = 0; // <20><><EFBFBD> <20><><EFBFBD><EFBFBD>⮩ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>

    get_system_colors(&sys_color_table);
    hash_edit_box.shift_color=sys_color_table.work_button;

    set_event_mask(0xC0000027);// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> ᮡ<>⨩
    do // <20><><EFBFBD><EFBFBD> <20><>ࠡ<EFBFBD>⪨ ᮡ<>⨩
    {
        gui_event = get_os_event(); // <20><><EFBFBD><EFBFBD>砥<EFBFBD> ᮡ<>⨥
        switch(gui_event) // <20><>ࠡ<EFBFBD><E0A0A1>뢠<EFBFBD><EBA2A0> ᮡ<><E1AEA1><EFBFBD><EFBFBD>
        {
        case KOLIBRI_EVENT_NONE:
            break;
        case KOLIBRI_EVENT_REDRAW:
            redraw_window();
            break;
        case KOLIBRI_EVENT_MOUSE:
            edit_box_mouse(&hash_edit_box);
            break;        
        case KOLIBRI_EVENT_KEY:
            hash_edit_box.text_color = BLACK;
            edit_box_key(&hash_edit_box,get_key().val);
            break;
        case KOLIBRI_EVENT_BUTTON: // <20><><EFBFBD><EFBFBD>⨥ <20><>ࠡ<EFBFBD>⪨ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
            pressed_button = get_os_button(); // <20><><EFBFBD><EFBFBD>祭<EFBFBD><E7A5AD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>⮩ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
            switch (pressed_button) // <20>஢<EFBFBD>ઠ <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>뫠 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
            {
                case BTN_MD5:
                    print_pending_calc(hash_str_md5);
                    sprint_hash(check_sum(MD5_BLOCK_SIZE),hash_str_md5, MD5_BLOCK_SIZE);
                    redraw_window();
                break;

                case BTN_SHA1:
                    print_pending_calc(hash_str_sha1);
                    sprint_hash(check_sum(SHA1_BLOCK_SIZE),hash_str_sha1, SHA1_BLOCK_SIZE);
                    redraw_window();
                break;

                case BTN_SHA256:
                    print_pending_calc(hash_str_sha256);
                    sprint_hash(check_sum(SHA256_BLOCK_SIZE),hash_str_sha256, SHA256_BLOCK_SIZE);
                    redraw_window();
                break;

                case BTN_COPY_MD5:
                    copy_to_clipboard(hash_str_md5);
                    redraw_window();
                break;

                case BTN_COPY_SHA1:
                    copy_to_clipboard(hash_str_sha1);
                    redraw_window();
                break;

                case BTN_COPY_SHA256:
                    copy_to_clipboard(hash_str_sha256);
                    redraw_window();
                break;

                case BTN_PASTE:
                    paste_to_edit_buffer();
                    redraw_window();
                break;

                case BTN_CMP:
                if(hash_compare())
                {
                    notify_show("'The checksum matches :)' -OK");
                    hash_edit_box.text_color = GREEN; // <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⥪<><E2A5AA> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>᫨ <20><><EFBFBD><EFBFBD>஫쭠<E0AEAB> <20>㬬<EFBFBD> ᮢ<><E1AEA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
                }else{
                    notify_show("'The checksum does not match! :(' -W");
                    hash_edit_box.text_color = RED; // <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⥪<><E2A5AA> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>᫨ <20><><EFBFBD><EFBFBD>஫쭠<E0AEAB> <20>㬬<EFBFBD> <20><> ᮢ<><E1AEA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
                }
                redraw_window();
                break;

                case BTN_QUIT:
                    exit(0);
                break;
            }
        }
    }while(1);
    exit(0);
}