1 /*
 2  ============================================================================
 3  Name        : GetDirInfo.c
 4  Author      : 
 5  Version     :
 6  Copyright   : Your copyright notice
 7  Description : Hello World in C, Ansi-style
 8  ============================================================================
 9  */
10 
11 #include <unistd.h>
12 #include <stdio.h>
13 #include <dirent.h>
14 #include <string.h>
15 #include <sys/stat.h>
16 #include <stdlib.h>
17 
18 int main() {
19     printf("Directory scan of /home/fjnucse:\n");
20     printdir("/home/fjnucse", 0);
21     printf("done.\n");
22 
23     exit(0);
24 }
25 
26 void printdir(char * dir, int depth) {
27     DIR * dp; //子目录处理操作
28     struct dirent *entry; //目录数据项
29     struct stat statbuf; //通过文件名查到的状态信息
30 
31     if ((dp = opendir(dir)) == NULL) //打开目录
32     {
33         fprintf(stderr, "cannot open direntory:%s\n", dir);
34         return;
35     }
36 
37     chdir(dir); //创建子目录流
38 
39     while ((entry = readdir(dp)) != NULL)
40     //读目录
41     {
42         lstat(entry->d_name, &statbuf); //通过文件名查到的状态信息
43 
44         if (S_ISDIR(statbuf.st_mode)) //文件权限和文件类型信息
45         {
46             if (strcmp(".", entry->d_name) == 0
47                     || strcmp("..", entry->d_name) == 0) {
48                 continue;
49             }
50 
51             printf("%*s%s/\n", depth, "", entry->d_name);
52             printdir(entry->d_name, depth + 4);
53         } else {
54             printf("%*s%s/\n", depth, "", entry->d_name);
55         }
56     }
57 
58     chdir(".."); //关闭子目录流
59     closedir(dp); //退出该目录
60 }