显示ftp客户端和服务器源代码c语言实现要点

ftp服务器地址时间:2021-01-30 阅读:()

课程设计 F TP的设计与实现

/*******  *****************/

include<winsock2 h>

#nlue < tdio >

in ude <s  l b h>

#pragma commen (lib,"ws2_32 lib )

#define DFAULT_T 2302

#define DEFAUL_BUFFER    

#defne EFAULMESGE "Th s i  a test o  the erge y \ boadcast  g  ste"

 ar szerveri[128 , //Srer t cnnec   szMe  sage[1 24]  //Messae    nd to severin iPo t = FAULT_ORT;/Port on serer to  nnect to

/WRD dCount =DEALT_CONT /Numbe  of times to se  me  sgeBObSndnly =FASE /S   data ony;don't reeiveint di fun  ;int ge  fun();int putfn();

nt w  n );int cf () int mdfun();int delfun();in usa u );vi usae()

{printf "usag: c   ent [-p:] [-  :IP n:x] [o]  );pr ntf(  -p x Remot po t     d  n");pritf();

rintf );pr  tf(" - Snd ms  ges ny;don't re  ve\n");

ExitProcess(1);

}

oi Val dateAg ( nt arc, car**argv)

{

 t i;fo (i= 1;i<argc; i+

{i  ((argv i][]= '-  ) | | (rv[i] 0]==''))

{

witch (  lw  a gv[i [1])

{cse

 f(s  rl e(a    i])> 3)

Prt=aoi(&arg[i][3] i  (st   n(arg[i )> 3)strcp(   e ver p,&argv[i][]);ca i  (s  rl en(argv[i] >3)

//dwC nt= tol(&argv[i [3]);

abSedOl TREbrakdefau t:u age( ;break;

}

}int ma n  n a gc

{

WSADATA ws;

C KT Cli t;cha  sBufer[DEFULT_BUFE R];

nt ret;

//usin e nt  ;

//it j struct socaddr_in srerstrc  ostent *hst= NUL;cha  choice[]  choic2[40 ;

//Prse te comman li  ad oad Winok

/a gv 1]="s 127  0  ";strcy(  zServerip,&rv[1][3]);

//Vlidatergs ar , a gv);if(WSAS  artu(KEWD(2 2  &wd)  =0)

pritf("ai  ed to loainsok libra y!\");

 etrn 1;

}

strcpy(  Me  sage, DFULT_MSAGE);

/ rea e th ocket, nd atte  o connet to h se  er//

Client= socke  (AFIT,S OC_STREAM IRT O_TCP ;if s  ient =INVALIOC KE)

{

rintf("socet ) faile:%d\n" AG astrror( ;

 eturn  ;

}serer  n_fmil =AFINET;

 erer  inprt=hons(  ort);p ntf(;server s n_add addr=int_ad(s ervri) 

/

/If the supplied  erver address wasn't in th f m

//if(  erver s  _addr s_ddr==INAD_NONE)

ho t= e hostbynae s erv ip);

 f(host==NLL)

{

rintf(;return 1;



CopyMemo  & erver  in_add ,host->_adr  st 0],ho t->h_len h);

}if (con   (sCl  en, (struct sockaddr )srersizef(     r ) == SOET_ERROR)

{pr ntf("onnect ) fa  led %d  ,WSAGe Lastr or ));retur 1;

}

//显示接通信息

//for(j=0 j<;j++)

{ret=rec(slin , szBfer DEFAUTBUFFER,  ;i  ret0) //Grcful clo er un0;

lse if(  et == SOCKET_EOR)

p n f(  rec()  i  d:%\n" WSAtLstEr or( ;r e trn ;

szBuffe  [  t] '\0';pri   ("%s\  ,szBufer);if(ret<1  

{

 et   cv( Client, zuff   DFAULT_UR,0) if(ret =0) // racef  lose

 etur 0e   e if (ret= OCKETERO)

{

/printf("recv() fa   ed:%dn  SGe Las Er or ));retrn  

}szB fer ret '0';

rin  "s\n",szBuffer);

}

/printf("DEAULUFFE=%\  ,DEFA_BUFFE);

}whi l e 1

{puts("------------------------");prin  ("ft>   ;scan ("   ch  ce);if(strcm hic,  i ",3)==0| | tr m(h  ce,"D ,2)=0){dirfun(sClient ;contine

}el se   st ncmp choi c e,"pd",3 =0| |  tr mp(c i ,"PWD" 3)=0{pwdfun s   e );

 ntine;

}e   e if(st ncmp(cho ce,   " )=0)

{u fun( Cliet) 

con iu;

}

l     (st ncm(hi c e,"qu t",4 ==  | st nmp(choie "QUI",2)==0){

reak;

}s nf  ;i f(st ncmp(c i c e,"get",3 =0  |   rncmp(c i c,"GET" 3)==0)

{g  fun(sC  nt,choic );con inue;

}

lse if(strncp(choic,"pt  ,3)==0| | s  ncp(choie "PUT",3 ==)

{put u(sClien ,ch   2 ;cntinue;

e   e if(strncm( oice " ",)==0| | st  cmp(c ice, CD" 2)==)cdfun( Clint,ho c2 co  iue;

}e  s i    trnc( oie,"m",)= | |  trcmp(coi c e, D" 2 =0){mdfun( Cl  en  coie2 ;continue;

}e  se if(str mp(co ce,"del" 3)= | | trncmp(h  e "DL",)==0){delfun sClient choice  cotiue;



   e

uts("输入错误请重新输入 );

flu sh s di);fflsh(s   n) printf "\");pri  f   \n") 

}c ose  c t(sCl  et ;

WSAlanup();retur ;



n d rfun(OCKET sCl  ent)

in re  ;cha  *MG="di  ";char sfer[ ];s  rcpy(sMssage, MG);ret= send( Clint ;if(rt= 0)return  ;e   e if(rt==SCKE_EROR



rintf("send() fa  l :%d\n", WSGetLatErrr()) retun  ;

}

//printf "Se  d    s\n , ret);

//rin f("bSendOnl%d\n",S endOnly);while(!bS endOnly)



/读取流并显示

//  e  = recv(sl  nt, zuffer,8, 0);

//p ntf("%s", zBuffe );

 e  =recv(sC ient, szBuff  ,8, ) if ret ==0 // acefu lsreturn 1 else i  (  et= SOCKTERR)

{prin f "recv ) failed: d\n  SAGetLstError ) ;

 etun 1;

}

 zBffe  [ret = '0';if(  trncp(sBuffer "226 Clse",s  rlen  2  lo e") ==0)

{break;

}prit  ("%s",szBuffr) if strcp(szB fer," 00 S tax e  rr",strlen("500 Snta error"))=){bra;

}

}rtun 0;

}int    un(SOET Client,ha  [0 )

{int rt;

ILE*fr e;car szfer[8];szMes  ae[0]='0' strca (sMessage, "ge  $");

//     t( zMessage, \  );stra sMs  a ,) 

/pitf("G[4]%c\n ,szMes  g [4]);

/sMessag [0]=;

/szes  age[4]=;//

//szMessge[8]=;

 e  =  nd(sClient, sMss  , strlen(szMe  sae)+1,0);

 f (  et==0)return 1;

ls if (  et== OCKET_ERR)

{

rintf(   end() fa  le:%d\n", WSAG astr or()) rtu  1 

}print  ("Sen % y es\n , ret) ret= recv sClient, szBufe  , 0,0);

*if ret==0) /Grace ul clsebrak;

lse i  (rt= OCKET_ERROR)

{printf("rec() fi  ed:\n , WSAetLastErr  ());brak

}*/

 zf r[ret = '\0 

  ntf ;i  (st  cmp( suffer,"1 5 Transferin ",s  rlen("  5 T nsfer ng " )=0)

 f( (    e=foe( "w")) == ULL)

{pr n f("opn   rr");

 et n 1;

}pitf  bS enOny=dn ,bS endnly);while !bS endOnl

{

/读取流并显示rt= rcv(sCliet, szBufer,80 0);if(ret=0) // Graeful cl  eretun  ;else if(rt=SOKT_ERRR)

{

rint  ("recv ) fai  ed %d\n",WAGetLastEr or());rturn 1 

szufer[ret ='\0 ;

/printf "% ", zBufer ;i  (   rcp( zBuffer,"22 Transfr  ,st len("22 ansfer  ))==0){b a;

if(   rncp sBuffr,"500 Synta error",s  rlen(" 00 yn ax rror") ==0){bra;

fpritf(fpre,"%s" sBuff );

}print  ("% \n",suffe );

cl    p );

}retrn 0;

int putfn(SOCE sClient,cha  0])

{int  et;//in i;

FILE f  e;/char ;

/char SG="gt\0me txt";car szBufe  [8]   ep_buffe  [0];

/spr n f(szMe   age "et0","  e txt\0  ) sMessage 0 ='0';st  cat(  Me  sage strcat szMssge );ret =sen( Client, zMessage, st   en(szessge)+1,0);

if(ret== retu  0;el  e if (rt= SCKETERROR)

{printf("snd() failed: %d", WetLas Erro() ;retr  ;

}

/prin f("Sen % by es\",  e   ;

// m tx ";pintf("\n",);if  (fpse=fp  ,  r  )) =NULL)

pintf("pen r  r");return  

}e  s

{p  t  ("h fun, eady t trans er\n",);

/i=0wh   (  e t s(tp_bffe r,80,  s e)  N ULL)

{sprintf( zBu    , s",  emp_ufe   ;snd(sClin , sBffer,  ,0);

}

}sprin f(  zuffr "226 Trnsfer cp ete \r\n  ;ret =snd(sC ient, zBu er, strl    zBufr), 0);fclos(fp e r ur 0;