curl / libcurl / API / curl_easy_setopt / CURLOPT_VERBOSE

CURLOPT_VERBOSE explained

Name

CURLOPT_VERBOSE - verbose mode

Synopsis

#include <curl/curl.h>
 
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_VERBOSE, long onoff);

Description

Set the onoff parameter to 1 to make the library display a lot of verbose information about its operations on this handle. Useful for libcurl and/or protocol debugging and understanding. The verbose information is sent to stderr, or the stream set with CURLOPT_STDERR.

You hardly ever want this enabled in production use, you almost always want this used when you debug/report problems.

To also get all the protocol data sent and received, consider using the CURLOPT_DEBUGFUNCTION.

Default

0, meaning disabled.

Protocols

All

Example

CURL *curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
 
  /* ask libcurl to show us the verbose output */
  curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
 
  /* Perform the request */
  curl_easy_perform(curl);
}

Availability

Always

Return value

Returns CURLE_OK

See also

CURLOPT_STDERR(3), CURLOPT_DEBUGFUNCTION(3), CURLOPT_ERRORBUFFER(3), curl_global_trace(3)

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