curl/docs/libcurl/opts/CURLOPT_STDERR.3
Daniel Stenberg 5b060a4108
docs: rewrite to present tense
... instead of using future tense.

+ numerous cleanups and improvements
+ stick to "reuse" not "re-use"
+ fewer contractions

Closes #11713
2023-08-23 23:26:10 +02:00

64 lines
2.1 KiB
Groff

.\" **************************************************************************
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.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.se/docs/copyright.html.
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.\" * copies of the Software, and permit persons to whom the Software is
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.\"
.TH CURLOPT_STDERR 3 "17 Jun 2014" libcurl libcurl
.SH NAME
CURLOPT_STDERR \- redirect stderr to another stream
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_STDERR, FILE *stream);
.fi
.SH DESCRIPTION
Pass a FILE * as parameter. Tell libcurl to use this \fIstream\fP instead of
stderr when showing the progress meter and displaying \fICURLOPT_VERBOSE(3)\fP
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 \fICURLOPT_DEBUGFUNCTION(3)\fP.
.SH DEFAULT
stderr
.SH PROTOCOLS
All
.SH EXAMPLE
.nf
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);
}
.fi
.SH AVAILABILITY
Always
.SH RETURN VALUE
Returns CURLE_OK
.SH "SEE ALSO"
.BR CURLOPT_VERBOSE "(3), " CURLOPT_NOPROGRESS "(3), "
.BR CURLOPT_DEBUGFUNCTION "(3) "