68 lines
1.3 KiB
Markdown
68 lines
1.3 KiB
Markdown
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---
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c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLINFO_CONTENT_LENGTH_DOWNLOAD_T
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Section: 3
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Source: libcurl
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See-also:
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- CURLINFO_CONTENT_LENGTH_UPLOAD_T (3)
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- curl_easy_getinfo (3)
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- curl_easy_setopt (3)
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---
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# NAME
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CURLINFO_CONTENT_LENGTH_DOWNLOAD_T - get content-length of download
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD_T,
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curl_off_t *content_length);
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~~~
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# DESCRIPTION
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Pass a pointer to a *curl_off_t* to receive the content-length of the
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download. This is the value read from the Content-Length: field. Stores -1 if
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the size is not known.
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# PROTOCOLS
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HTTP(S)
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# EXAMPLE
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~~~c
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* Perform the request */
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res = curl_easy_perform(curl);
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if(!res) {
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/* check the size */
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curl_off_t cl;
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res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD_T, &cl);
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if(!res) {
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printf("Download size: %" CURL_FORMAT_CURL_OFF_T "\n", cl);
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}
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}
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.55.0
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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