c++ - FTP client request failure -

i'm trying develop ftp protocol in c++. takes type of request client (get or put) however, server receives put request in both cases , none of functionality.

here code compare type of request:

if(strcmp(argv[3],"get")==0)     smsg.type=req_get; //req_time; else if (strcmp(argv[3],"put")==0) {     smsg.type=req_put; //req_size;  } else err_sys("wrong request type\n"); 

and part execute when request sent server:

if(smsg.type=req_get) {     cout<<"iam inside get"<<endl;     cout<<smsg.type<<endl;     //send out message     memcpy(smsg.buffer,&req,sizeof(req)); //copy request msg's buffer     smsg.length=sizeof(req);     fprintf(stdout,"send request %s\n",argv[1]);     if (msg_send(sock,&smsg) != sizeof(req))         err_sys("sending req packet error.,exit");      //receive response     if(msg_recv(sock,&rmsg)!=rmsg.length)         err_sys("recv response error,exit");      //cast response structure     respp=(resp *)rmsg.buffer;     printf("response:%s\n\n\n",respp->response);} 

when displaying "respp->response" doesn't return anything, , size of file zero.

does have idea how solve problem? highly appreciated.

- if(smsg.type=req_get) + if(smsg.type==req_get) 

next time try use -wall when compiling, might catch kind of error