1--- 2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3SPDX-License-Identifier: curl 4Title: CURLOPT_STDERR 5Section: 3 6Source: libcurl 7See-also: 8 - CURLOPT_DEBUGFUNCTION (3) 9 - CURLOPT_NOPROGRESS (3) 10 - CURLOPT_VERBOSE (3) 11Protocol: 12 - All 13Added-in: 7.1 14--- 15 16# NAME 17 18CURLOPT_STDERR - redirect stderr to another stream 19 20# SYNOPSIS 21 22~~~c 23#include <curl/curl.h> 24 25CURLcode curl_easy_setopt(CURL *handle, CURLOPT_STDERR, FILE *stream); 26~~~ 27 28# DESCRIPTION 29 30Pass a FILE * as parameter. Tell libcurl to use this *stream* instead of 31stderr when showing the progress meter and displaying CURLOPT_VERBOSE(3) 32data. 33 34If you are using libcurl as a Windows DLL, this option causes an exception and 35a crash in the library since it cannot access a FILE * passed on from the 36application. A work-around is to instead use CURLOPT_DEBUGFUNCTION(3). 37 38# DEFAULT 39 40stderr 41 42# %PROTOCOLS% 43 44# EXAMPLE 45 46~~~c 47int main(void) 48{ 49 CURL *curl = curl_easy_init(); 50 FILE *filep = fopen("dump", "wb"); 51 if(curl) { 52 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); 53 curl_easy_setopt(curl, CURLOPT_STDERR, filep); 54 55 curl_easy_perform(curl); 56 } 57} 58~~~ 59 60# %AVAILABILITY% 61 62# RETURN VALUE 63 64Returns CURLE_OK 65
