我正在尝试编写一个简单的套接字程序,它在客户端读取文件名并将其发送到服务器。如果存在,文件的内容将被发送回客户端。客户端和服务器能够成功连接,但是当我读取文件名时,我没有得到任何输出(程序没有终止)。请告诉我出了什么问题。
server.c
int main()
{
int create_socket,new_socket,fd,addlen,n;
int bufsize=1024;
char *buffer=malloc(bufsize);
char fname[255];
struct sockaddr_in address;
//printf("program");
if((create_socket=socket(AF_INET,SOCK_STREAM,0))>0)
printf("socket created");
address.sin_family=AF_INET;
address.sin_port=htons(15000);
address.sin_addr.s_addr=INADDR_ANY;
if(bind(create_socket,(struct sockaddr*)&address,sizeof(address))==0)
printf("socket binded");
while(1)
{
printf("Inside while loop");
listen(create_socket,3);
addlen=sizeof(struct sockaddr_in);
if(new_socket=accept(create_socket,(struct sockaddr*)&address,&addlen)>0)
printf("%d connected",inet_ntoa(address.sin_addr));
else
printf("not connected");
recv(new_socket,fname,255,0);
printf("file name is %s",fname);
if(fd=open(fname,O_RDONLY)<0)
{
strcpy(buffer,"Not such file found");
send(new_socket,buffer,sizeof(buffer),0);
}
else
{
while(n=read(fd,buffer,bufsize)>0)
send(new_socket,buffer,n,0);
}
close(new_socket);
}
close(create_socket);
}
client.c
int main(int argc,char *argv[])
{
int create_socket,n;
int bufsize=1024;
char *buffer=malloc(bufsize);
char fname[255];
struct sockaddr_in address;
if((create_socket=socket(AF_INET,SOCK_STREAM,0))>0)
printf("socket created\n");
address.sin_family=AF_INET;
address.sin_port=htons(15000);
inet_pton(AF_INET,argv[1],&address.sin_addr);
if(connect(create_socket,(struct sockaddr*)&address,sizeof(address))==0)
printf("%s connected\n",argv[1]);
else
printf("not connected\n");
printf("Enter the filename\n");
scanf("%s",fname);
send(create_socket,fname,strlen(fname),0);
printf("get the values");
while(n=recv(create_socket,buffer,bufsize,0)>0)
write(1,buffer,n);
return close(create_socket);
}