How to get file info of a directory in linux kernel space?

[Zhang Shukun]

hi, all

you know in the linux userspace , i can compile and run the following
program to get the name or inode number of the files in the /bin directory.

i want to know how to do this in linux kernelspace ? thank you very much!

/*********************************************************************/

#include <unistd.h>

#include <sys/stat.h>

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include <dirent.h>



void printdir(char *dir, int depth){

    DIR *dp;

    struct dirent *entry;

    struct stat statbuf;

    if((dp = opendir(dir)) == NULL){

        fprintf(stderr,"cannot open directory: %s\n",dir);

        return;

    }

    chdir(dir);

    while((entry = readdir(dp)) != NULL){

        lstat(entry->d_name,&statbuf);

        if(S_ISDIR(statbuf.st_mode)){

            if(strcmp("..",entry->d_name) == 0||

            strcmp(".",entry->d_name) == 0)

                continue;

            printf("%*s%s/\n",depth,"",entry->d_name);

            printdir(entry->d_name,depth+4);

        }

        else printf("%*s%s\n",depth,"",entry->d_name);

    }

    chdir("..");

    closedir(dp);

}

int main(){

    printdir("/bin",0);
}

/*************************************************************************************************/
-- 
Best regards,
张树坤
北京理工大学，计算机科学技术学院
Sucan
Computer Department,Beijing Institute of Technology,China
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