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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * 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.haxx.se/docs/copyright.html.
.\" *
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.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
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.\" **************************************************************************
.\"
.TH CURLINFO_CONTENT_LENGTH_DOWNLOAD_T 3 "25 May 2017" "libcurl 7.55.0" "curl_easy_getinfo options"
.SH NAME
CURLINFO_CONTENT_LENGTH_DOWNLOAD_T \- get content-length of download
.SH SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD_T,
curl_off_t *content_length);
.SH DESCRIPTION
Pass a pointer to a \fIcurl_off_t\fP to receive the content-length of the
download. This is the value read from the Content-Length: field. Stores -1 if
the size isn't known.
.SH PROTOCOLS
HTTP(S)
.SH EXAMPLE
.nf
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* Perform the request */
res = curl_easy_perform(curl);
if(!res) {
/* check the size */
curl_off_t cl;
res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD_T, &cl);
if(!res) {
printf("Download size: %" CURL_FORMAT_CURL_OFF_T "\\n", cl);
}
}
}
.fi
.SH AVAILABILITY
Added in 7.55.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "
.BR CURLINFO_CONTENT_LENGTH_UPLOAD_T "(3), "
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