TCP Programming for Linux platform File transfer engineering

Server-side code

1#include <stdio.h>2#include <string.h>3#include <stdlib.h>4#include <string.h>5#include <unistd.h>6#include <sys/types.h>7#include <sys/socket.h>8#include <netinet/inch.h>9#include <arpa/inet.h>Ten    One #defineMAXLINE 1024 A    - voidUsageChar*command) - {   theprintf"Usage:%s portnum filename\n", command);  -Exit0);  - }   - intMainintargcChar**argv) + {   -     structsockaddr_in serv_addr;  +     structsockaddr_in clie_addr;  A     CharBuf[maxline];  at     intsock_id;  -     intlink_id;  -     intRecv_len;  -     intWrite_leng;  -     intClie_addr_len;  -FILE *FP;  in    -     if(ARGC! =3) {   toUsage (argv[0]);  +     }   - /*<-----------------------------------------socket---------------------------------------------->*/ the     if(sock_id = socket (af_inet, Sock_stream,0)) <0)  *     {   $Perror ("Create Socket failed\n"); Panax NotoginsengExit0);  -     }   the /*<-----------------------------------------bind-------------------------------------------------> */ +memset (&AMP;SERV_ADDR,0,sizeof(SERV_ADDR));  Aserv_addr.sin_family =af_inet;  theServ_addr.sin_port = htons (Atoi (argv[1]));  +SERV_ADDR.SIN_ADDR.S_ADDR =htonl (Inaddr_any);  -    $     if(Bind (sock_id, (structSOCKADDR *) &serv_addr,sizeof(SERV_ADDR)) <0 )  $     {   -Perror ("Bind Socket failed\n");  -Exit0);  the     }   - /*<-----------------------------------------Listen-----------------------------------------------> */Wuyi     if(-1= = Listen (sock_id,Ten))  the     {   -Perror ("Listen Socket failed\n");  WuExit0);  -     }   About /*<-------------------------------------server Receive part---------------------------------->*/ $      while(1) {   -         if(fp = fopen (argv[2],"W")) ==NULL) -         {   -Perror ("Open file failed\n");  AExit0);  +         }   theLseek (FP,0, seek_end); -Clie_addr_len =sizeof(CLIE_ADDR); $ /*<-----------------------------------------Accept-----------------------------------------------> */         thelink_id = Accept (sock_id, (structSOCKADDR *) &clie_addr, &Clie_addr_len);  the         if(-1==link_id) {   thePerror ("Accept Socket failed\n");  theExit0);  -         }   in bzero (buf, MAXLINE);  the          while(Recv_len = recv (link_id, buf, MAXLINE,0))  the         {   About             if(Recv_len <0)  the             {   theprintf"recieve Data from Server failed!\n");  the                  Break;  +             }   -printf"#");  theWrite_leng = fwrite (buf,sizeof(Char), Recv_len, FP); Bayi             if(Write_leng <Recv_len) the             {   theprintf"Write file failed\n");  -                  Break;  -             }   the bzero (Buf,maxline);  the         }   theprintf"\nfinish recieve\n");  the fclose (FP);  - Close (link_id);  the     }   the Close (sock_id);  the     return 0; 94}

TCP Programming for Linux platform File transfer engineering