#include "myfs_tools.h"

/* ---------------------------------------------------------------------------- */

char* myfs_dir_get_fuse_home_path() {
    struct passwd *pw = getpwuid(getuid());
    char* result;
    if(pw == NULL)
        return NULL;

    result = (char*)malloc(sizeof(char)*(strlen(pw->pw_dir))+1+5);
    strcpy(result, pw->pw_dir);
    strcat(result, "/fuse");
    return result;
}
/* ---------------------------------------------------------------------------- */

char* myfs_file_full_path(const char* fusepath) {
    char* dirname = myfs_dir_get_fuse_home_path();
    char* fullpath = (char*)malloc(sizeof(char)*(strlen(dirname) + strlen(fusepath) + 1));
    strcpy(fullpath, dirname);
    strcat(fullpath, fusepath);
    free(dirname);

    return fullpath;
}
/* ---------------------------------------------------------------------------- */

int myfs_file_exists(const char* fusepath) {
    char* fullpath = myfs_file_full_path(fusepath);
    int result = (access(fullpath, F_OK) != -1) ? 1 : 0;
    free(fullpath);
    
    return result;
}
/* ---------------------------------------------------------------------------- */

DIR* myfs_dir_open(char* dir_name) {

    return opendir(dir_name);
}
/* ---------------------------------------------------------------------------- */

struct dirent* myfs_dir_read(DIR* d) {

    return readdir(d);
}
/* ---------------------------------------------------------------------------- */

int myfs_dir_close(DIR* d) {

    return closedir(d) == 0;
}
/* ---------------------------------------------------------------------------- */