#include
#include
#include
#include
#include

#define?MAX_FILE_LEN??（1024*30）
#define?DOWNLOAD_FILE_PATH	“/www/picture/“
#define?DOWNLOAD_FILE_NAME	“1.jpg“

int?main（）{
		
		FILE?*fp;
		char?filebuf[MAX_FILE_LEN];
		char?cmd[65535];
		struct?stat?sb;
		
		sprintf（cmd?“%s%s“?DOWNLOAD_FILE_PATH?DOWNLOAD_FILE_NAME）;
		stat（cmd?&sb）;?//取待下載文件的大小
		
		//輸出HTTP頭信息，輸出附加下載文件、文件長度以及內容類型
		printf（“Content-Disposition:attachment;filename=%s“?DOWNLOAD_FILE_NAME）;
		printf（“\r\n“）;?
		printf（“Content-Length:%d“?sb.st_size）;
		printf（“\r\n“）;
		printf（“Content-Type:application/octet-stream\r\n“）;
		printf（“\r\n“）;
		sprintf（cmd?“%s%s“?DOWNLOAD_FILE_PATH?DOWNLOAD_FILE_NAME）;
		
		if（fp=fopen（cmd?“r+b“））{??
		//成功打開文件，讀取文件內容
			do{
				int?rs?=?fread（filebuf?1?sizeof（filebuf）?fp）;
				
				fwrite（filebuf?rs?1?stdout）;
			}while（!feof（fp））;
			fclose（fp）;	
		}

		return?1;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1074??2013-12-24?19:42??cgi下載實現\download.c

?????文件?????????99??2013-12-20?12:26??cgi下載實現\download.html

?????目錄??????????0??2013-12-24?19:42??cgi下載實現

-----------?---------??----------?-----??----

?????????????????1173????????????????????3