Try removing these lines:

xmlParse(buf, 1);
curl_easy_setopt(curlHandle, CURLOPT_WRITEFUNCTION, curlEasyCb);
curl_easy_setopt(curlHandle, CURLOPT_WRITEDATA,(void *)respBuf);

I suspect you're going off the end of respBuf but I don't know what size it is.

Also,

curl = contentHeaders = NULL;

What curl is this?

J D wrote:

>Hi, I couldn't post the whole thing. But here's the
>main function. There's a pthread looping to call this
>function every minute. I initialized ssl callback,
>message queue, timers etc in there before starting the
>loop. I also use libexpat to parse the xml doc.
>
>Note that if I take out curl_easy_clean, it would
>still crash in curl_easy_perform, in same __libc_free.
>>From the stack, I noticed that the argument pointer
>passed to __libc_free was not the same pointer for
>some reason. That's why I was thinking I may have
>linked the wrong libraries.
>
>
>
>static MUTEX_TYPE *mutex_buf= NULL;
>
>CURL *curlHandle = NULL;
>struct curl_slist *contentHeaders = NULL;
>char xmlHeaderBuf[128];
>char userAccount[64];
>XML_Parser xmlParser = NULL;
>
>size_t
>curlEasyCb(void *ptr, size_t size, size_t nmemb, void
>*data)
>{
> size_t realsize = size * nmemb;
> char *buf = data;
>
> /* FIXME copy max 1024 bytes per run */
>
> memcpy(buf, ptr, realsize);
> buf[realsize] = 0;
>
> xmlParse(buf, 1);
>
> return realsize;
>}
>
>int
>querySend()
>{
> CURLcode res;
>
> if (curlHandle == NULL) {
> /* init the curl session */
> if ((curlHandle = curl_easy_init()) == NULL) {
> return -1;
> }
> curl_easy_setopt(curlHandle, CURLOPT_URL,
>"https://my-url");
>
> curl_easy_setopt(curlHandle, CURLOPT_SSL_VERIFYPEER,
>0);
> curl_easy_setopt(curlHandle, CURLOPT_SSL_VERIFYHOST,
>0);
>
> curl_easy_setopt(curlHandle, CURLOPT_WRITEFUNCTION,
>curlEasyCb);
>
> sprintf(userAccount, "test:test123");
> curl_easy_setopt(curlHandle, CURLOPT_USERPWD,
>userAccount);
>
> sprintf(xmlHeaderBuf, "<?xml version=\"1.0\"
>encoding=\"UTF-8\" standalone=\"yes\"?><request
>xmlns=\"http://my-url/idiom\" />\0");
>
> /* post binary data */
> contentHeaders = curl_slist_append(contentHeaders,
>"Content-Type: text/xml");
>
> curl_easy_setopt(curlHandle, CURLOPT_POSTFIELDS,
>xmlHeaderBuf);
> curl_easy_setopt(curlHandle, CURLOPT_POSTFIELDSIZE,
>strlen(xmlHeaderBuf));
> curl_easy_setopt(curlHandle, CURLOPT_HTTPHEADER,
>contentHeaders);
>
> curl_easy_setopt(curlHandle, CURLOPT_WRITEDATA,
>(void *)respBuf);
> }
>
> res = curl_easy_perform(curlHandle);
>
>#if 1
> curl_easy_cleanup(curlHandle);
> curlHandle = NULL;
> curl_slist_free_all(contentHeaders);
> curl = contentHeaders = NULL;
>#endif
>
> return 0;
>}
>
>
>
>
>--- Jason Pump <jpump_at_mindspring.com> wrote:
>
>
>
>>Hi, can you post your code? If you call
>>curl_easy_cleanup() to have to
>>call curl_easy_init() before using the pointer
>>again. Reading between
>>the lines it kind of appears that might be your
>>problem. I have what you
>>describe on many platforms with no problems, once I
>>can get it to compile.
>>
>>J D wrote:
>>
>>
>>
>>>Thanks for the tip. I'll continue to look. But the
>>>pthread I have is pretty simple. All it does is to
>>>query a server every 5 minutes using a piece of
>>>
>>>
>>code
>>
>>
>>>very similar to the https.c sample. This crash
>>>
>>>
>>usually
>>
>>
>>>happens when second query is sent. And it crashes
>>>
>>>
>>in
>>
>>
>>>curl_easy_perform if I keep same curl handle.
>>>
>>>The version of libcurl is 7.14.1.
>>>
>>>-Justin
>>>
>>>--- Daniel Stenberg <daniel_at_haxx.se> wrote:
>>>
>>>
>>>
>>>
>>>
>>>>On Fri, 21 Oct 2005, J D wrote:
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>I need a quick https client but it crashes every
>>>>>
>>>>>
>>>>>
>>>>>
>>>>time I call
>>>>
>>>>
>>>>
>>>>
>>>>>cury_easy_cleanup. It looks like a bad pointer
>>>>>
>>>>>
>>>>>
>>>>>
>>>>being freed.
>>>>
>>>>The most common reason for crashes like this is
>>>>
>>>>
>>that
>>
>>
>>>>your application has
>>>>destroyed some memory.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>But I suspect I did something wrong while
>>>>>
>>>>>
>>>>>
>>>>>
>>>>cross-compling libcurl.
>>>>
>>>>I don't think that is very likely. If you could
>>>>build and run libcurl, it is
>>>>almost guaranteed that you built it right.
>>>>
>>>>--
>>>> Commercial curl and libcurl Technical Support:
>>>>http://haxx.se/curl.html
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>
>>
>
>
>
Received on 2005-10-25