c httpclient抓取网页(想自己写个客户端，模拟浏览器向服务器(如lighttpd等)上传数据 )

　　c httpclient抓取网页(想自己写个客户端，模拟浏览器向服务器(如lighttpd等)上传数据

)

　　我想编写自己的客户端并模拟浏览器将数据上传到服务器（如lighttpd）。用httprequest获取数据包。以下是发送的数据内容：

　　引述

　　POST/upload.php HTTP/1.0

　　接受：image/gif、image/x-xbitmap、image/jpeg、image/pjpeg、application/vnd.ms-excel、application/msword、application/vnd.ms-powerpoint、*/*

　　接受语言：en us

　　接受编码：gzip，deflate

　　用户代理：Mozilla/4.0

　　内容长度：180

　　主持人:19人(k23)16人(k24)(k21)180人)

　　内容类型：application/x-www-form-urlencoded

　　-----------------------------7d93a924b05a2

　　内容配置：表单数据；；filename=“C:\tmp\hello.txt”

　　内容类型：文本/纯文本

　　实现时，代码大致如下：

　　#include

#include

#include

#include

#include

// post a big file

#define Req "POST /upload.php HTTP/1.0\r\n" \

"Accept:image/gif, image/x-xbitmap, image/jpeg, image/pjepg, application/vnd.ms-excel, application/msword, applicationvnd.ms-powerpoint, */*\r\n" \

"Accept-Language:en-us\r\n" \

"Accept-Encoding:gzip, deflate\r\n" \

"User-Agent:Mozilla/4.0\r\n" \

"Host:192.168.1.180\r\n" \

"Content-Type:application/x-www-urlencoded\r\n" \

"-----------------------------7d91a515b05a2\r\n" \

"Content-Disposition:form-data;name=\"upload_file\";filename=\"tmp.gz\"\r\n" \

"Content-Type:application/x-gzip\r\n"

#define DST_IP "192.168.1.180"

#define ReqLen sizeof(Req)

int main()

{

struct sockaddr_in srv;

int sock, nbytes;

char sndbuf[1024] = {0};

char recbuf[1024] = {0};

if((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1)

{

fprintf(stderr, "socket() error!\n");

exit(1);

}

srv.sin_family = AF_INET;

srv.sin_addr.s_addr = inet_addr(DST_IP);

srv.sin_port = htons(80);

if((connect(sock, (struct sockaddr *)&srv, sizeof(struct sockaddr))) == -1)

{

printf("connect() error!\n");

exit(1);

}

strncpy(sndbuf, Req, ReqLen);

if(write(sock, sndbuf, ReqLen) == -1)

{

fprintf(stderr, "write() error!\n");

exit(1);

}

// get response

int bytes;

while(1)

{

nbytes = read(sock, recbuf, 1023);

if(nbytes < 0)

break;

recbuf[nbytes] = '\0';

printf(recbuf);

}

close(sock);

return 0;

}