Re: Multiple connection from 1 client

On 5/9/2011 1:45 PM, Eric S. Eberhard wrote: int setblock(fd, mode) int fd; int mode; /* True - blocking, False - non blocking */ { int flags; int prevmode; flags = fcntl(fd, F_GETFL, 0); prevmode = !(flags O_NDELAY); if (mode) flags = ~O_NDELAY; /* turn blocking on */ else flags

Re: Multiple connection from 1 client

Hi Eric., First of all i am a she :) and I took a maternity break off from work..which is why I am jobless..but busy feeding and diapering my little one :)..sure I can take up your offer, please email me at suraj...@gmail.com. harsh., The thing is as Eric says, you really have to rewrite ur

Re: Multiple connection from 1 client

Hi Gayathri, My Server and Client application are Windows based. Also the application is huge, so its not possible to rewrite at this time. Maybe later we can do that, but as for now, we are looking into alternate method for this. If we decide to revisit this issue then i will look into this.

Re: Multiple connection from 1 client

Hi, I used the following code to change the socket to non blocking, but its still not successful, now its not even able to complete SSL_Accept. I am changing the socket option for the accepted socket. unsigned long iMode = 1; int nReturn = ioctlsocket(sock, FIONBIO, iMode);

Re: Multiple connection from 1 client

Hi., Yes, once you make the socket noblocking, your current ssl API,s will not work. that is why I asked you to write the asynchronous state machine. Go thro the man pages for ssl accept, ssl read, ssl write for non blocking cases. You need to handle special cases called want read and write

Re: Multiple connection from 1 client

On 5/9/2011 6:27 AM, Harshvir Sidhu wrote: Also i suspect, that if i change the socket to non blocking, then my current read write code will not work. i mean the one in which i use FD_SET and select to perform operations. Thanks. It's very easy to get things wrong and it won't work

Re: Multiple connection from 1 client

Harsh, I would take up his offer of help. Socket control over multiple sockets is tricky code and very specific to what you are trying to do. My environment is single threaded and does similar things to yours -- but as Gayathri said, there are many details and exceptions and although with

Multiple connection from 1 client

Hi, I have a server application, which accepts normal sockets and ssl socket connections. I am trying to make 3 connections to server from 1 client machine, on same server port. When i connect on normal sockets then it works with any number of connections. When i tried to connect SSL

Re: Multiple connection from 1 client

Hi, I have a server application, which accepts normal sockets and ssl socket connections. I am trying to make 3 connections to server from 1 client machine, on same server port. When i connect on normal sockets then it works with any number of connections. When i tried to

Re: Multiple connection from 1 client

My code is all jumbled up, its a big big code. I dont think i can share the code. If there is some particular call that you want to see, please let me know i will share the function call or block of calls. Thanks. On Fri, May 6, 2011 at 2:22 PM, derleader mail derlea...@abv.bg wrote: Hi,

Re: Multiple connection from 1 client

On Fri May 6 2011, derleader mail wrote: Hi, I have a server application, which accepts normal sockets and ssl socket connections. I am trying to make 3 connections to server from 1 client machine, on same server port. When i connect on normal sockets then it works with any

RE: Multiple connection from 1 client

From: Harshvir Sidhu Hi, I have a server application, which accepts normal sockets and ssl socket connections. I am trying to make 3 connections to server from 1 client machine, on same server port. When i connect on normal sockets then it works with any number of connections. When

Re: Multiple connection from 1 client

Well i think this link is for my question. I have already done 1-5 from the Before you ask list. Number 6, i dont know anyone who use openssl. Number 7, it will take a lot of time to go through all the code, i was just trying to save some time. I thought user discussion forums are for this only. I

Re: Multiple connection from 1 client

Harshvir, SO_REUSEADDR sock option has noting to do with ur problem, please go thro the socket ops man page to get a better understanding. First find out if ur server code is a blocking i/o or non blocking I/O..if former then connections will be handled sequentially..only after the 1st client is

Re: Multiple connection from 1 client

Gayatri, My server code is single threaded and i am using blocking sockets, i am using fd_set and select to wait for event on socket, and then performing operation based on the event that acts on a socket. I have an array of sockets to listen. So if i start listening on 3 different ports and from

Re: Multiple connection from 1 client

Harsh, Okay from what I can understand, if you make ur underlying fd non blocking then it would work fine. Blocking FDs, unless and until one client is finished with its processing the other client will not be able to communicate with the server as the previous fd is blocked. The server is

Re: Multiple connection from 1 client

And I cannot imagine a case where a blocking FD is useful except it is lazier to code that way. You need to use non-blocking. E At 04:03 PM 5/6/2011, you wrote: Harsh, Okay from what I can understand, if you make ur underlying fd non blocking then it would work fine. Blocking FDs, unless

Re: Multiple connection from 1 client

Thanks for the reply Gayathri. Do you mean to changing the sockets to non blocking, or when i create bio for ssl to make that as non blocking? Thanks. On Fri, May 6, 2011 at 6:03 PM, Gayathri Sundar suraj...@gmail.com wrote: Harsh, Okay from what I can understand, if you make ur underlying

Re: Multiple connection from 1 client

Change the sockets. This is what I use: int setblock(fd, mode) int fd; int mode; /* True - blocking, False - non blocking */ { int flags; int prevmode; flags = fcntl(fd, F_GETFL, 0); prevmode = !(flags O_NDELAY); if (mode)

Re: Multiple connection from 1 client

Yes, you need to make the underlying socket non blocking, and at the same time gotta change the way you call SSL_accept, SSL_read, write etc to handle non block error conditions like want_read, want_write errors, use the code Eric has given to make the fd non block, or u can also set the bio non

Re: Multiple connection from 1 client

Thanks, I will give this a try. // Harshvir On Fri, May 6, 2011 at 6:44 PM, Eric S. Eberhard fl...@vicsmba.com wrote: Change the sockets. This is what I use: int setblock(fd, mode) int fd; int mode; /* True - blocking, False - non blocking */ { int flags;

Re: Multiple connection from 1 client

Harsh., If u have any specific doubts in writing this asynchronous state machine email me privately at suraj...@gmail.com. I am pretty much jobless right now and can spend some time on this. Thanks --Gayathri On Friday, May 6, 2011, Harshvir Sidhu hvssi...@gmail.com wrote: Thanks, I will give