On Thu, 27 May 2004 18:28:09 +1000
"Brad Douglas" <[EMAIL PROTECTED]> wrote:
> Hi All,
>
> I'm having some trouble trying to set a TCP socket to non-blocking
> (code example below).
Is that really what you want? Maybe using poll() or select() would
be a better option.
> Basically fnctl is returning -1 but when I
> try and get the errno, it's set to 0 (which I beleive is success).
I'm not sure fcntl() works on sockets, I thought you had to use an ioctl().
This link:
http://www.developerweb.net/sock-faq/detail.php?id=63
suggests that either works.
> I've done a quick walk through with another hacker here but we cant' see anything
> obvious.
>
> Any ideas on what I've balls up is greatly appreciated.
>
> Regards,
> Brad
>
> #include <sys/socket.h>
> #include <netinet/in.h>
> #include <netdb.h>
> #include <errno.h>
> #include <string.h>
> #include <stdio.h>
> #include <fcntl.h>
>
> int main()
> {
> int fileDescriptor = socket(AF_INET, SOCK_STREAM, 0);
> if ( 0 > fileDescriptor )
> printf("Unable to obtain new socket (errn = %d, text = \"%s\"\n",
> errno, strerror(errno));
Errrm, all you have is a socket, its not connected to anything. Maybe you
could connect() or accept() on the socket before you set it to non-blocking.
Erik
--
+-----------------------------------------------------------+
Erik de Castro Lopo [EMAIL PROTECTED] (Yes it's valid)
+-----------------------------------------------------------+
A good debugger is no substitue for a good test suite.
--
--
+-----------------------------------------------------------+
Erik de Castro Lopo [EMAIL PROTECTED] (Yes it's valid)
+-----------------------------------------------------------+
A good debugger is no substitue for a good test suite.
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