#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?

//通過一個新建的socket利用緩沖區buffer向客戶端傳遞文件，文件描述符是fp，是一個已經打開的文件
void?send_file（char?*bufferint?NewConnectionFILE?*fp）
{	
????int?read_length=0;
????int?sum=0;

????//while（fgets（buffer1000fp）!=NULL）//這種方法經過多次測試發現不行，原因就是不能返回讀取的大小
????while（（read_length=fread（buffer11000fp））>0）
????{
????????//int?len=strlen（buffer）;
????????int?len=read_length;
????????int?sended=0;
????????int?count;

????????buffer[read_length]=‘\0‘;

????????while（len>0）
????????{
????????????count=send（NewConnectionbuffer+sendedlen0）;
????????????len-=count;
????????????sended+=count;
????????}

????????sum+=read_length;
????}

????fclose（fp）;
????printf（“succeed?to?transfer?filesend?length?is?%d\n“sum）;
}

int?main（int?argcchar?*argv[]）
{
????int?sockfd;
????int?len;
????struct?sockaddr_in?address;
????int?result;
????char?*path;
????char*?file_name;
????char?state;
????char?buffer[1000];
????int?choice;

????if（argc?<4）
????{
????????perror（“Input?format:?transfer?send/receive?file_path?ip?port（optional）!\n“）;
????????exit（-1）;
????}
????//獲取用戶的操作，1表示接收文件，2表示發送文件給服務器
????choice=atoi（argv[1]）;

????//獲取要接收文件在服務器上的路徑或者要發送的文件
????path=argv[2];
????if（choice?==1）
????????printf（“want?to?receive?file?%s\n“path）;
????else
????????printf（“want?to?send?file?%s\n“path）;
????if（strrchr（path‘/‘）==NULL）
????{
????????printf（“You?have?inputted?a?file?without?assigning?a?directory“）;
????????if（choice?==1）
????????????printf（“server?can‘t?locate?the?exact?position?of?the?file!\n“）;
????????else
????????????printf（“client?can‘t?locate?the?file?to?send\n“）;
????????exit（-1）;
????}
????file_name=strrchr（path‘/‘）+1;

????sockfd=socket（AF_INETSOCK_STREAM0）;

????address.sin_family=AF_INET;
????address.sin_addr.s_addr=inet_addr（argv[3]）;
????if（argc==5）
????????address.sin_port=htons（atoi（argv[4]））;
????else
????????address.sin_port=htons（12345）;

????len=sizeof（address）;

????result=connect（sockfd（struct?sockaddr*）&addresslen）;

????if（result==-1）
????{
????????perror（“connect?failed!“）;
????????exit（-1）;
????}

????if（choice==1）//從服務器接收文件
????{
????????printf（“ok\n“）;
????????//開始通信
????????write（sockfd“1“1）;//向服務器發送一個標志，說明是要從服務器接收文件
????????write（sockfdpath100）;

????????read（sockfd&state1）;
????????if（state==‘1‘）
????????{
????????????FILE?*fp;
????????????char??directory[20]=“download/“;
????????????fp=fopen（strcat（directoryfile_name）“rb“）;//這里打開文件要按二進制打開，否則會在傳輸過程中出錯，因為有換行符的問題
????????????if（fp==NULL）
????????????{
????????????????write（sockfd“0“1）;
????????????????printf（“open?or?create?file?failed!\n“）;
????????????????exit（-1）;
????????????}
????????????else
????????????{
????????????????int?file_length;
????????????????char?length[10];
????????????????int?finished=0;
????????????????int?len=1000;
????????????????int?count=0;
????????????????int?read_length;

????????????????write（sockfd“1“1

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

?????文件??????13700??2012-03-02?22:31??TCP文件傳輸\client\transfer

?????文件???????5610??2012-03-02?22:31??TCP文件傳輸\client\transfer.c

?????文件????????241??2012-03-02?22:44??TCP文件傳輸\ReadMe.txt

?????文件??????51833??2012-03-02?22:28??TCP文件傳輸\TCP文件傳輸?.docx

?????文件??????31744??2012-03-02?22:10??TCP文件傳輸\Transfer\Debug\Transfer.exe

?????文件?????371444??2012-03-02?22:10??TCP文件傳輸\Transfer\Debug\Transfer.ilk

?????文件?????412672??2012-03-02?22:10??TCP文件傳輸\Transfer\Debug\Transfer.pdb

?????文件???33226752??2012-03-02?20:21??TCP文件傳輸\Transfer\ipch\transfer-4d8310bf\transfer-81aa3f91.ipch

?????文件????????680??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\cl.command.1.tlog

?????文件??????13258??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\CL.read.1.tlog

?????文件????????516??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\CL.write.1.tlog

?????文件???????1420??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\link.command.1.tlog

?????文件???????2720??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\link.read.1.tlog

?????文件????????884??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\link.write.1.tlog

?????文件????????564??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\mt.command.1.tlog

?????文件????????846??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\mt.read.1.tlog

?????文件????????386??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\mt.write.1.tlog

?????文件????????381??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\Transfer.exe.intermediate.manifest

?????文件?????????87??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\Transfer.lastbuildstate

?????文件???????4696??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\Transfer.log

?????文件??????32791??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\transfer.obj

?????文件?????150528??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\vc100.idb

?????文件??????77824??2012-03-02?22:10??TCP文件傳輸\Transfer\Transfer\Debug\vc100.pdb

?????文件???????5057??2012-03-02?21:33??TCP文件傳輸\Transfer\Transfer\transfer.c

?????文件???????3224??2012-02-23?21:59??TCP文件傳輸\Transfer\Transfer\Transfer.vcxproj

?????文件????????944??2012-02-23?21:59??TCP文件傳輸\Transfer\Transfer\Transfer.vcxproj.filters

?????文件????????143??2012-02-23?21:40??TCP文件傳輸\Transfer\Transfer\Transfer.vcxproj.user

?????文件???25579520??2012-03-02?22:28??TCP文件傳輸\Transfer\Transfer.sdf

?????文件????????891??2012-02-23?21:40??TCP文件傳輸\Transfer\Transfer.sln

????..A..H.?????11264??2012-03-02?22:28??TCP文件傳輸\Transfer\Transfer.suo

............此處省略11個文件信息