Server not accepting client connection.

[ppuniversal]

Hi everyone,
I have made a client-server code in Linux. The server is running properly and is sitting at its

accept()

method. But the client is unable to connect to the server. The Server and Client codes are as follows :


Filename : Server.cpp

#include<sys/types.h>
#include<sys/socket.h>
#include<netdb.h>
#include<stdio.h>
#include<stdlib.h>
//#include<fcntl.h>
#include<string.h>
#include<netinet/in.h>
#include<unistd.h>
#include<sys/stat.h>
#include<errno.h>
 
 
#define SERVERPORT 10000
#define MAXBUFF 1024
 
main()
{
    int socket1,socket2;
    int addrlen;
    struct sockaddr_in ss,cc;
    int retstatus=0;
    int i,j,rcounter;
 
    char *s;
 
    char* bufptr;    
    char buf[MAXBUFF];
    char data[MAXBUFF];
 
    printf("in main of server");
 
    socket1=socket(AF_INET,SOCK_STREAM,0);
    printf("socket no :%d",socket1);
 
    ss.sin_family=AF_INET;    
    ss.sin_addr.s_addr=INADDR_ANY;
    ss.sin_port=htons(SERVERPORT);
 
    if(socket1==-1)
    {
        printf("Error in creating socket");
        exit(1);
    }
    printf("socket created");
 
    printf("\nbind:%d",retstatus);
    retstatus=bind(socket1,(struct sockaddr*)&ss,sizeof(struct sockaddr));
    getchar();
    printf("\nbind:%d",retstatus);
    if(retstatus==-1)
    {
        printf("cannot bind to socket");
        exit(1);
    }
 
    retstatus=listen(socket1,5);
 
    if(retstatus==-1)
    {
        printf("cannot listen on socket");
        exit(1);
    }
 
    //for(;;)
    //{
 
 
        addrlen=sizeof(cc);
        perror(s);
        socket2=accept(socket1,(struct sockaddr*)&cc,(socklen_t*)&addrlen);
        perror(s);
 
    if(socket2==-1)
    {
        printf("cannot accept connection");
        exit(1);
    }
//}
 
    if((rcounter=recv(socket2,data+i,strlen(data),0))>0)
    {
        i+=rcounter;
    }
 
    if(rcounter==-1)
    {
        printf("could not read from socket");
        j=shutdown(socket1,2);
    }
 
    //data[i+1]='/0';
    printf("data is:%s",data);
 
    printf("server shutting down");
    i=shutdown(socket1,2);
 
}
 

Filename : Client.cpp

#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<netdb.h>
#include<stdio.h>
#include<stdlib.h>
#include<sys/stat.h>
#include<string.h>
#include<errno.h>
 
#define SERVERPORT    10000
#define MAXBUFF    1024
 
main(int argc,char* argv[])
{
    int sockd=0,i;
    struct sockaddr_in ss;
    int retstatus=0;
    char buf[MAXBUFF];
    char *s;
 
    if(argc<3)
    {
        printf("something");
        //exit(1);
    }
 
    printf("in main of client");
    sockd=socket(AF_INET,SOCK_STREAM,0);
    printf("\n%d",sockd);
    if(sockd==-1)
    {
        printf("Error in creating socket");
        exit(1);
    }
    printf("Socket created");
    ss.sin_family=AF_INET;    
    ss.sin_addr.s_addr=inet_addr("127.0.0.1");
    ss.sin_port=htons(SERVERPORT);
 
 
    retstatus=connect(sockd,(struct sockaddr*)&ss,sizeof(ss));
    perror(s);
    printf("after connect %d",retstatus);
 
    if(retstatus==-1)
    {
        printf("Error in connecting ");
        exit(1);
    }
 
 
    retstatus=send(sockd,"hello"/*argv[2]*/,strlen("hello"/*argv[2]*/)+1,0);
    if(retstatus==-1)
    {
        printf("could not send data");
        exit(1);
    }
 
    printf("client closing");
    i=shutdown(sockd,2);
}
 

The client on execution prints -1 in this line :

printf("after connect %d",retstatus);

.

Waiting for reply.
Pawan

[weaknessforcats]

Is this Windows?? If not disregard my comments below.

Read this.

The -1 is only interesting. There are many returns from connect().

The call looks odd:

retstatus=connect(sockd,(struct sockaddr*)&ss,sizeof(ss));

You need to provide the socket which is a SOCKET and not an int.
You need to provide the address of the socket name which is a struct sockaddr*.
You need to provide the the length of the socket name and not the sizeof the name.

I have no idea what struct sockaddr_in is for.

[ppuniversal]

Is this Windows?? If not disregard my comments below.

Read this.

The -1 is only interesting. There are many returns from connect().

The call looks odd:


You need to provide the socket which is a SOCKET and not an int.
You need to provide the address of the socket name which is a struct sockaddr*.
You need to provide the the length of the socket name and not the sizeof the name.

I have no idea what struct sockaddr_in is for.

This is in Linux. I have mentioned this at the beginning of the post. And I will try your suggestion and will reply accordingly.
Thanks and Regards
Pawan