linux下实现目录即文件的完整删除

#ifndef _DELETE_FILE
#define _DELETE_FILE
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include <dirent.h>
#include <limits.h>
#include <string.h>
#include <stdio.h>
#include <limits.h>

//判断是否为目录
bool is_dir(const char *path)
{
    struct stat statbuf;
    if(lstat(path, &statbuf) ==0)//lstat返回文件的信息，文件信息存放在stat结构中
    {
        return S_ISDIR(statbuf.st_mode) != 0;//S_ISDIR宏，判断文件类型是否为目录
    }
    return false;
}

//判断是否为常规文件
bool is_file(const char *path)
{
    struct stat statbuf;
    if(lstat(path, &statbuf) ==0)
        return S_ISREG(statbuf.st_mode) != 0;//判断文件是否为常规文件
    return false;
}

//判断是否是特殊目录
bool is_special_dir(const char *path)
{
    return strcmp(path, ".") == 0 || strcmp(path, "..") == 0;
}

//生成完整的文件路径
void get_file_path(const char *path, const char *file_name,  char *file_path)
{
    strcpy(file_path, path);
    if(file_path[strlen(path) - 1] != ‘/‘)
       sprintf(file_path,"%s%s",file_path, "/");
    sprintf(file_path,"%s%s",file_path file_name);
}

void delete_file(const char *path)
{
    DIR *dir;
    dirent *dir_info;
    char file_path[PATH_MAX];
    if(is_file(path))
    {
        remove(path);
        return;
    }
    if(is_dir(path))
    {
        if((dir = opendir(path)) == NULL)
            return;
        while((dir_info = readdir(dir)) != NULL)
        {
            get_file_path(path, dir_info->d_name, file_path);
            if(is_special_dir(dir_info->d_name))
                continue;
            delete_file(file_path);
            rmdir(file_path);
        }
    }
}
int main(int argc, char **argv)
{
    delete_file("/home/AlexCthon/test");
    return 0;
}
#endif