curl / libcurl / API / curl_easy_setopt / CURLOPT_STDERR

CURLOPT_STDERR explained

Name

CURLOPT_STDERR - redirect stderr to another stream

Synopsis

#include <curl/curl.h>
 
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_STDERR, FILE *stream);

Description

Pass a FILE * as parameter. Tell libcurl to use this stream instead of stderr when showing the progress meter and displaying CURLOPT_VERBOSE data.

If you are using libcurl as a Windows DLL, this option causes an exception and a crash in the library since it cannot access a FILE * passed on from the application. A work-around is to instead use CURLOPT_DEBUGFUNCTION.

Default

stderr

Protocols

All

Example

CURL *curl = curl_easy_init();
FILE *filep = fopen("dump", "wb");
if(curl) {
  curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
  curl_easy_setopt(curl, CURLOPT_STDERR, filep);
 
  curl_easy_perform(curl);
}

Availability

Always

Return value

Returns CURLE_OK