Re: [PHP-DEV] Patch that corrects non blocked socket reading on WIN32 From: Andi Gutmans (andi <email protected>)
Date: 01/16/01

I think the code itself should be fixed (with #ifdef or add it to the
socket abstraction). It's dangerous to redefine errno because other code
uses it too.

Andi

At 01:01 PM 1/14/2001 -0800, Christophe Thibault wrote:
>I just came across a bug still present in the latest php 4 release. i have
>the following script:
>
> $g_ssock=fsockopen($server,$port,$errno,$errstr,30);
> socket_set_blocking($g_ssock,0);
> while(!feof($g_ssock))
> echo fgets($g_ssock,4096);
>
>if you uncomment the socket_set_blocking line it will work fine on win32,
>but with non blocking sockets, feof will always return true. by digging
>through the code, it appears that fsock.c uses the errno() function for
>determining any socket error as seen in function php_sockread_internal:
>
> } else if(nr_bytes == 0 || (nr_bytes < 0 && errno != EWOULDBLOCK)) {
> sock->eof = 1;
> }
>
>the problem is that win32 doesn't report socket errors with _errno() but
>with WSAGetLastError() so here is my fix:
>
>in fsock.c, line 46, replace:
>
>#ifdef PHP_WIN32
>#include <winsock.h>
>#else
>
>with:
>
>#ifdef PHP_WIN32
>#include <winsock.h>
>#undef errno
>#define errno (WSAGetLastError())
>#else
>
>and now it works like a charm :) please submit my patch to the cvs server so
>i can benefit of it in the next php releases
>
>bye,
>-christophe
>
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