Implementing a server without fork()

I have a school homework that asks me to create a chat server (tcp) without creating new processes.
The problem is that the server has a console. i need to be able to send the server some input whenever i want... I need to use the select function for the mux of the i/o. the server waits on the select function and i'm not able to read from stdin

how can i solve this ?

Add stdin (ie, fd 0) to the FD_SET of descriptors you pass to select.

Then you can wait for interesting things to happen on user input, as well as input from your sockets.

recv(0,(char*)cmd,sizeof(cmd),0);

how can i receive interesting things from stdin... this doesn't work

Well I've no idea how to figure out what "it doesn't work" really means from such a terse problem report and one line of code.

sorry... i was asking how do i read my input from stdin? do i use the recv function ?

Use the read() function.

Quote:

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Originally Posted by spank

recv(0,(char*)cmd,sizeof(cmd),0);

how can i receive interesting things from stdin... this doesn't work

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Don't use recv() on a file descriptor, use read().

great... thank you! i solved this

Quote:

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Originally Posted by spank

great... thank you! i solved this

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In general, you can use read() instead of recv(), but you cannot use recv() instead of read(). read() will read anything, recv() can only read from sockets.