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CURLOPT_STDERR(3)	   Library Functions Manual	     CURLOPT_STDERR(3)

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_VER-
       BOSE(3) data.

       If you are using	libcurl	as a Windows DLL, this option causes an	excep-
       tion  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_DEBUG-
       FUNCTION(3).

DEFAULT
       stderr

PROTOCOLS
       This functionality affects all supported	protocols

EXAMPLE
       int main(void)
       {
	 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
       Added in	curl 7.1

RETURN VALUE
       curl_easy_setopt(3) returns a CURLcode indicating success or error.

       CURLE_OK	(0) means everything was OK, non-zero means an error occurred,
       see libcurl-errors(3).

SEE ALSO
       CURLOPT_DEBUGFUNCTION(3), CURLOPT_NOPROGRESS(3),	CURLOPT_VERBOSE(3)

libcurl				  2025-06-03		     CURLOPT_STDERR(3)

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