1

#include <iostream>
#include <pwd.h>
#include <sys/stat.h>
#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

void load_users(char** users_array, int* users_count, char* filename);
void change_permission(char* filename, char* mode);
void check(char **users_array, int* users_count, char* filename, char* mode);


int main(int argc, char **argv)
{
    char mode[256];
    char directory[256];
    char userfile[256];

    sprintf(userfile, "%s", argv[1]);

    sprintf(directory, "%s", argv[2]);

    sprintf(mode, "%s", argv[3]);

    //printf("userfile:%s\n",userfile);
//  printf("dir:%s\n",directory);
//  printf("mode:%s\n",mode);
    int users_count = 0;
    char* users[25];

  for (int i = 0; i < 25; i++)
  {
    users[i] = (char*) malloc(10);
  }

  load_users(users, &users_count, userfile);
  //load_filelist();

  DIR *dir;
    struct dirent *ent;
    dir = opendir(directory);


    char pathname[20];
    //printf("all dirs:\n");
    while ((ent = readdir (dir)) != NULL)
    {
        sprintf(pathname, "%s/%s", directory, ent->d_name);
        //printf("pathname %s\n", pathname);
        check(users, &users_count, pathname, mode);
    }

    //printf("-------------------\n");
 // printf("all users:\n");

  for (int i = 0; i < users_count;i++)
  {
  //  printf("%s\n", users[i]);
  }

  for (int i = 0; i < 25; i++)
  {
    free(users[i]);
  }

  return 0;
}

void load_users(char** users_array, int* users_count, char* filename)
{

  FILE *file1;
  file1 = fopen(filename, "r");

  int n = 0;
  while (!feof(file1))
  {
    fscanf(file1, "%s", users_array[n]);
    n++;
  }
  *users_count = n;
}

void check(char **users_array, int* users_count, char* filename, char* mode)
{
    struct stat info;

    stat(filename, &info);

    struct passwd *pw = getpwuid(info.st_uid);  // получаем владельца
    //std::cout<<pw->pw_name<<std::endl;

    char* owner = pw->pw_name;

    for (int i=0; i < *users_count; i++)
    {
        if (strcmp(owner, users_array[i]) == 0) // !!!
        {
            change_permission(filename, mode);
        //  printf("dir owner: %s,\n", owner);

        }
    }

}
void change_permission(char* filename, char* mode)
{
    int i;
    i = strtol(mode, 0, 8);
    if (chmod (filename,i) < 0)
       // printf("error in chmod");
    else
//      printf("changing mode %s for %s\n", mode, filename);

}