catalog_check_permission

#include <stdio.h>
#include <string.h>
#include <dirent.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>

int main(int argc, char const *argv[])

{
    char directory[PATH_MAX];
    char path[PATH_MAX];
    DIR *dir;
    struct dirent *ent;
    struct stat buffer;
    int status;
    int can_read;

    printf("Please enter directory name: ");
    gets(directory);
    strtok(directory, "\n");
    printf("Directory: %s \n", directory);

    if ((dir = opendir (directory)) != NULL) {
      /* print all the files and directories within directory */
      while ((ent = readdir (dir)) != NULL) {
        if ( !strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..") ) {
            // do nothing
        } else {
            sprintf(path, "%s/%s", directory, ent->d_name);
            status = lstat(path, &buffer);
            can_read = euidaccess(path, R_OK||X_OK);
            if(!S_ISDIR(buffer.st_mode) && can_read == 0) {
                printf ("%s\n", ent->d_name);
            }

        }
      }
      closedir (dir);
    } else {
      /* could not open directory */
      perror ("");
      return(0);
    }

    return(0);
}