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Diffstat (limited to 'docs/libcurl/opts/GNURLINFO_CONTENT_LENGTH_DOWNLOAD.3')
| -rw-r--r-- | docs/libcurl/opts/GNURLINFO_CONTENT_LENGTH_DOWNLOAD.3 | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/docs/libcurl/opts/GNURLINFO_CONTENT_LENGTH_DOWNLOAD.3 b/docs/libcurl/opts/GNURLINFO_CONTENT_LENGTH_DOWNLOAD.3 new file mode 100644 index 000000000..19f0dfc4f --- /dev/null +++ b/docs/libcurl/opts/GNURLINFO_CONTENT_LENGTH_DOWNLOAD.3 @@ -0,0 +1,65 @@ +.\" ************************************************************************** +.\" * _ _ ____ _ +.\" * Project ___| | | | _ \| | +.\" * / __| | | | |_) | | +.\" * | (__| |_| | _ <| |___ +.\" * \___|\___/|_| \_\_____| +.\" * +.\" * Copyright (C) 1998 - 2017, 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. +.\" * +.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell +.\" * copies of the Software, and permit persons to whom the Software is +.\" * furnished to do so, under the terms of the COPYING file. +.\" * +.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +.\" * KIND, either express or implied. +.\" * +.\" ************************************************************************** +.\" +.TH CURLINFO_CONTENT_LENGTH_DOWNLOAD 3 "1 Sep 2015" "libcurl 7.44.0" "curl_easy_getinfo options" +.SH NAME +CURLINFO_CONTENT_LENGTH_DOWNLOAD \- get content-length of download +.SH SYNOPSIS +#include <gnurl/curl.h> + +CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD, + double *content_length); +.SH DESCRIPTION +Pass a pointer to a double to receive the content-length of the download. This +is the value read from the Content-Length: field. Since 7.19.4, this returns +-1 if the size isn't known. + +\fICURLINFO_CONTENT_LENGTH_DOWNLOAD_T(3)\fP is a newer replacement that returns a more +sensible variable type. +.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 */ + double cl; + res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &cl); + if(!res) { + printf("Size: %.0f\\n", cl); + } + } +} +.fi +.SH AVAILABILITY +Added in 7.6.1 +.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 "(3), " |