[ee122] sockaddr_in and pointers.

Richard Schmidt huntingtonsurfca at gmail.com
Sat Sep 22 23:06:58 PDT 2007

So I went through the trouble of creating test code for this aspect and it
came out clean. So I guess there's something else getting messed up along
the way.

On 9/22/07, Richard Schmidt <huntingtonsurfca at gmail.com> wrote:
> The sockaddr_in struct doesn't like to be modified via a pointer.
> I'm trying to modularize my code but this is preventing me from doing so.
> prototype: char *clientParse(char*buff, struct sockaddr_in *serv, ...)
> and calling it: sBuff = clientParse(inBuff, &serv_addr, &my_addr);
> I dereference the pointer in the function like this:
> serv->sin_family = AF_INET;
> But when I try to bind the connection, using the serv_addr (in main), it
> fails.
> So I tried making local variables (in the function) and then:
> memcpy(serv, &servAddr, sizeof(struct sockaddr_in)); (in function)
> but this is still failing. Anyone else have an idea? I know this is the
> reason why it is failing because I've had this problem before with it and I
> found a workaround using memcpy() but that was in the same scope. I guess
> that's why it didn't work across function calls.
> Any ideas?
> Rick
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