114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
#include <stdio.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <string.h>
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#include <stdint.h>
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#include <unistd.h>
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enum {PATH_LENGTH=256};
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#define STR255 "%255s"
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void convert_path_to_full(char *full_path, const char *dir) {
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if(dir[0]=='/') {
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strcpy(full_path, dir);
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} else if (dir[0]=='.') {
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getcwd(full_path,PATH_LENGTH);
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}
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else {
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getcwd(full_path,PATH_LENGTH);
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strcat(full_path, "/");
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strcat(full_path, dir);
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}
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if(full_path[strlen(full_path)-1] !='/')
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strcat(full_path,"/");// добавляем / в конце
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}
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/*
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void print_filetype(int type) {
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switch (type) {
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case DT_BLK: printf("b "); break;
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case DT_CHR: printf("c "); break;
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case DT_DIR: printf("d "); break; //directory
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case DT_FIFO: printf("p "); break; //fifo
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case DT_LNK: printf("l "); break; //Sym link
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case DT_SOCK: printf("s "); break; //Filetype isn't identified
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default: printf(" "); break;
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}
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}
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*/
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/**
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Расширить строку пробелами.
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@print_lenth длина до которой надо расширить
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*/
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void print_space(int print_lenth, int str_lenth) {
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while( (print_lenth - str_lenth)>0 ) {
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putchar(' ');
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str_lenth++;
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}
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}
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void print_tab(int tab_number) {
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for(int t=1; t<tab_number; t++) {
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putchar('\t');
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}
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}
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void print_file_size(long long int byte_number) {
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if(byte_number/(1024*1024))
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printf("%lld Mb", byte_number/(1024*1024));
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else if(byte_number/1024)
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printf("%lld Kb", byte_number/1024);
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else
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printf("%lld b", byte_number);
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}
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void ls(const char *dir) {
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static int tab_count = 0; //уровень вложенности рекурсии
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tab_count++;
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struct stat file_stats;
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DIR *folder;
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struct dirent *entry;
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int files_number = 0;
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char full_path[PATH_LENGTH]={0};
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convert_path_to_full(full_path, dir);
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folder = opendir(full_path);
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if(folder == NULL){
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perror("Unable to read directory");
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printf("%s\n",full_path);
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return;
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}
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while( (entry=readdir(folder)) ) {
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if( entry->d_name[0]=='.' )// пропускаем поддиректории
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continue;
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char full_filename[PATH_LENGTH]={0};
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files_number++;
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print_tab(tab_count);//отступы при рекурсии
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printf("%4d : ",files_number);
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//print_filetype(entry->d_type);
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//не работает для Windows
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strcpy(full_filename, full_path);
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strcat(full_filename, entry->d_name);
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printf("%s", entry->d_name);
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print_space(20, entry->d_namlen);
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if (!stat(full_filename, &file_stats)){
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print_file_size(file_stats.st_size);
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printf("\n");
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}
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else {
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printf("stat failed for this file\n");
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perror(0);
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}
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}
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closedir(folder);
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tab_count--;
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}
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int main(void)
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{
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char dir[PATH_LENGTH], buf[PATH_LENGTH];
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printf("Input dir: ");
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scanf(STR255,dir);
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convert_path_to_full(buf, dir);
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printf("ls for folder %s\n",buf);
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ls(dir);
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return 0;
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}
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