CURLINFO_CONTENT_LENGTH_DOWNLOAD - length of download
#include <curl/curl.h> CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD, double *content_length);
curl_easy_getinfo options CURLINFO_CONTENT_LENGTH_DOWNLOAD(3)
NAME
CURLINFO_CONTENT_LENGTH_DOWNLOAD - get content-length of download
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD,
double *content_length);
DESCRIPTION
Pass a pointer to a double to receive the content-length of the down-
load. This is the value read from the Content-Length: field. Since
7.19.4, this returns -1 if the size is not known.
CURLINFO_CONTENT_LENGTH_DOWNLOAD_T(3) is a newer replacement that
returns a more sensible variable type.
PROTOCOLS
HTTP(S)
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* Perform the request */
res = curl_easy_perform(curl);
if(!res) {
/* check the size */
double cl;
res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &cl);
if(!res) {
printf("Size: %.0f\n", cl);
}
}
}
AVAILABILITY
Added in 7.6.1
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | web/curl |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
curl_easy_getinfo(3), curl_easy_setopt(3), CURLINFO_CON-
TENT_LENGTH_UPLOAD(3),
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://curl.se/down-
load/curl-7.83.1.tar.bz2.
Further information about this software can be found on the open source
community website at http://curl.haxx.se/.
libcurl 7.83.1 November 26, 2021
CURLINFO_CONTENT_LENGTH_DOWNLOAD(3)