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.\" generated by cd2nroff 0.1 from CURLINFO_CONTENT_LENGTH_DOWNLOAD_T.md
.TH CURLINFO_CONTENT_LENGTH_DOWNLOAD_T 3 "2025-06-27" libcurl
.SH NAME
CURLINFO_CONTENT_LENGTH_DOWNLOAD_T \- get content\-length of download
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD_T,
curl_off_t *content_length);
.fi
.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 is not known.
.SH PROTOCOLS
This functionality affects http only
.SH EXAMPLE
.nf
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "https://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 curl 7.55.0
.SH RETURN VALUE
\fIcurl_easy_getinfo(3)\fP returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see
\fIlibcurl\-errors(3)\fP.
.SH SEE ALSO
.BR CURLINFO_CONTENT_LENGTH_UPLOAD_T (3),
.BR curl_easy_getinfo (3),
.BR curl_easy_setopt (3)
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