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From nik600 <nik...@gmail.com>
Subject Re: problem with ap_md5 in custom module
Date Thu, 16 Aug 2012 12:33:21 GMT
Great! this fix the problem

thanks for your help.

On Wed, Aug 15, 2012 at 10:47 PM, Ben Noordhuis <info@bnoordhuis.nl> wrote:
> On Wed, Aug 15, 2012 at 5:13 PM, nik600 <nik600@gmail.com> wrote:
>> Dear all
>>
>> i'm having a problem with ap_md5, i just want to write a custom module
>> that compute che md5 checksum of the requested url and give it back to
>> the user.
>>
>> This is my code:
>> *****************************************************************
>> *****************************************************************
>> static int kcache_handler(request_rec* r)
>> {
>>     if (!r->handler || strcmp(r->handler, "kcache"))
>>         return DECLINED;
>>
>>     if (r->method_number != M_GET)
>>         return HTTP_METHOD_NOT_ALLOWED;
>>
>>     char* kcache_md5;
>>         kcache_md5 = (char *)ap_md5(r->pool,r->unparsed_uri);
>>
>>     ap_set_content_type(r, "text/html;charset=ascii");
>>     ap_rputs("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\">", r);
>>     ap_rputs("<html><head><title>K-Hello World!</title></head>",
r);
>>     ap_rprintf(r,"<body><h1>K-Hello
>> World!</h1><p>%s=%s</p></body></html>", r->unparsed_uri,kcache_md5);
>>     return OK;
>> }
>> *****************************************************************
>> *****************************************************************
>>
>> i've got a warning during compilation:
>>
>> src/mod_kcache.c:18:15: warning: cast to pointer from integer of
>> different size [-Wint-to-pointer-cast]
>>
>> Is quite strange to me that ap_md5 returns an int, as in the
>> documentation it is reported to return a char *
>>
>> http://ci.apache.org/projects/httpd/trunk/doxygen/group__APACHE__CORE__MD5.html
>>
>> By the way, if i try to run it i get a segfault, if i comment the line
>> that prints kcache_md5 with   ap_rprintf the module doesn't segfault.
>>
>> So, where i'm wrong?
>
> It seems you don't include util_md5.h so the compiler defaults the
> function prototype to `int ap_md5()`. Compile with -Wall -Wextra and
> you'll get warnings about things like that.



-- 
/*************/
nik600
http://www.kumbe.it

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