#include "scan.h"

//轮循读取文件名
void read_filename(char *dir)
{
	DIR *dfd;
	struct dirent *dp;
	char name[MAX_NAME];

	if ((dfd = opendir(dir)) == NULL)
	{
		printf("dir_order:can't open %s\n %s",dir,strerror(errno));
		return ;
	}
	while ((dp = readdir(dfd)) != NULL)
	{
		if (strncmp(dp->d_name, ".", 1) == 0)
			continue;
		if (strlen(dir) + strlen(dp->d_name) + 2 > sizeof(name))//确定申请的空间够大
		{
			printf("dir_order:name %s %s too long\n",dir,dp->d_name);
			return ;
		}
		else 
		{
			memset(name,0,sizeof(char)*MAX_NAME);
			sprintf(name,"%s/%s",dir,dp->d_name);

			sprintf(file.name,name);

			if(4 == dp->d_type)//判断文件为目录，则递归查询
			{
				read_filename(name);
				printf("%s\n",name);
			}
			printf("%s\n" ,name);
		}
	}
	closedir(dfd);
	return ;
}

//获取文件部分信息
void read_filestat(struct fileinfo file)
{
	struct stat filestat;

	if(lstat(file.name,&filestat) <= 0)
	{
		printf("cannot access the file %s",file.name);
		return;
	}
//获取文件类型
	switch(filestat.st_mode & S_IFMT){
		case S_IFDIR :
			sprintf(file.type,"目录");
			break;
		case S_IFSOCK :
			sprintf(file.type," 套接字 ");
			break;
		case S_IFLNK :
			sprintf(file.type," 软链接 ");
			break;
		case S_IFREG :
			sprintf(file.type," 文件 ");
			break;
		case S_IFCHR :
			sprintf(file.type," 字符设备 ");
			break;
		case S_IFIFO :
			sprintf(file.type," 管道 ");
			break;
	}	
//获取文件大小
        //printf("%8ld\n" ,file.st_size);//打印文件名和文件大小。
	file.size = filestat.st_size;
//获取文件权限
	int i = 8;
	while(i >= 0)
	{
		if((filestat.st_mode)& 1<<i)
		{
			switch(i%3)
			{
				case 2:
					file.mod[9-i] = 'r';
					break;
				case 1:
					file.mod[9-i] = 'w';
					break;
				case 0:
					file.mod[9-i] = 'x';
					break;
			}
		}
		else
		{
			file.mod[9-i] = '-';
		}
		i--;
	}

//获取文件属主
	sprintf(file.uid,"%s",getpwuid(filestat.st_uid)->pw_name);
//获取文件属组
	sprintf(file.gid,"%s",getgrgid(filestat.st_gid)->gr_name);
}

#if 0 
void read_filemd5(struct fileinfo file)
{

}
#endif

#if 0
int main(int argc, const char *argv[])
{
	char *dir = NULL;
	char *name = NULL;

	dir = (char *)malloc(MAX_FILE);
	printf("请输入要读取的目录\n");
	scanf("%s",dir);
	read_filename(dir);

	printf("文件名：%s\n",file.name);
	return 0;
}
#endif