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.TH CURLINFO_CONTENT_LENGTH_DOWNLOAD_T 3 "November 04, 2020" "libcurl 7.77.0" "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, "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 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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