Problem with curl_easy_perform

[hamishbobcares]

Hi Atiti,
Thanks for your work on this module. I understand that development of this module has been dropped, but I can't find any alternatives :(

The problem I'm having with this module is that the call to the CAS server to validate the ticket is not happening. Specifically in this part of the code:

int URL_GET_request(struct URL_Request u, char *url, struct string *out) {
int len = 0;
FILE filep;
filep = fopen("/var/log/curllog", "wb");

ifdef URL_DEBUG

    LOG_MSG(LOG_INFO, "GET URL: %s\n", url);

endif

    curl_easy_setopt(u->curl, CURLOPT_URL, url);
    curl_easy_setopt(u->curl, CURLOPT_WRITEFUNCTION, URL_writefunc);
    curl_easy_setopt(u->curl, CURLOPT_WRITEDATA, out);
    curl_easy_setopt(u->curl, CURLOPT_FOLLOWLOCATION, 1);
    curl_easy_setopt(u->curl, CURLOPT_VERBOSE, 1L);
    curl_easy_setopt(u->curl, CURLOPT_STDERR, filep);

ifdef SKIP_PEER_VERIFICATION

    curl_easy_setopt(u->curl, CURLOPT_SSL_VERIFYPEER, 0L);

endif

ifdef SKIP_HOSTNAME_VERIFICATION

    curl_easy_setopt(u->curl, CURLOPT_SSL_VERIFYHOST, 0L);

endif

    u->res = curl_easy_perform(u->curl);
    return len;

}

I've added a few extra lines to increase verbosity. The URL is generated properly, but no requests reach the CAS server. The output in /var/log/curllog is:

• Hostname was NOT found in DNS cache
• Could not resolve host: mydomain.com
• Closing connection 0

I tested the same URL in another simple C program, that works fine and the request reaches the CAS server:

include <curl/curl.h>

size_t curl_write( void _ptr, size_t size, size_t nmemb, void *stream)
{
return fwrite(ptr, size, nmemb, stdout);
}
int main(int argc, char *_argv)
{
FILE* filep;
filep = fopen("/var/log/curllog", "wb");
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, "https://mydomain.com:8443/cas/serviceValidate?service=https%3A%2F%2Flocalhost%2Fsomething&ticket=ST-28-e7ItglFQ7ljwasdfaswldi7QWEWGFSasdgsa-mydomain.com");
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_write);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curl, CURLOPT_STDERR, filep);

curl_easy_perform(curl);
curl_easy_cleanup(curl);
}

I checked for all possible DNS issues, but could not find any. I feel its something simple, but just can't identify what it is. Any help you could provide on this would be extremely appreciated!!

Oscar