I originally sent this to curl-users@, but this might be a more appropriate
place, hence re-posting.
---
Hello,
I need to set a particular socket option through libcurl. I register a
sockopt callback, and set the socket option when callack is called. When I
ran this code, curl crashed with the following trace:
#0 0xf4586435 in sockopt_callback(void*, int, curlsocktype) ()
#1 0xf41f1011 in singleipconnect () from /usr/lib/libcurl.so.5
#2 0xf41f1b04 in Curl_connecthost () from /usr/lib/libcurl.so.5
#3 0xf41e0aa6 in Curl_setup_conn () from /usr/lib/libcurl.so.5
#4 0xf41e0ca6 in Curl_connect () from /usr/lib/libcurl.so.5
#5 0xf41ecd11 in Curl_do_perform () from /usr/lib/libcurl.so.5
#6 0xf41eda43 in curl_easy_perform () from /usr/lib/libcurl.so.5
---------
Here's my code to register for sockopt callback.
curl_easy_setopt(client, CURLOPT_SOCKOPTDATA, uint32_t data);
curl_easy_setopt(client, CURLOPT_SOCKOPTFUNCTION,
sockopt_callback);
And this is the callback's implementation:
int sockopt_callback(void *clientp, curl_socket_t curlfd, curlsocktype
purpose)
{
if(clientp == NULL) {
printf("error");
return CURL_SOCKOPT_OK;
}
uint32_t data = *(uint32_t*) clientp;
sock_ctx lSockCtx;
memset(&lSockCtx, 0, sizeof(lSockCtx));
lSockCtx.data = data;
if (setsockopt(curlfd, SOL_IP, <opt-name>, &lSockCtx,
sizeof(lSockCtx)) < 0) {
return CURL_SOCKOPT_ERROR;
}
return CURL_SOCKOPT_OK;
}
I am not sure where to start debugging. Is there something here I am
missing? Any help would be appreciated.
Thanks,
Priyanka.
-------------------------------------------------------------------
List admin: http://cool.haxx.se/list/listinfo/curl-library
Etiquette: http://curl.haxx.se/mail/etiquette.html
