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.\" generated by cd2nroff 0.1 from CURLOPT_MAXFILESIZE_LARGE.md
.TH CURLOPT_MAXFILESIZE_LARGE 3 "2025-06-27" libcurl
.SH NAME
CURLOPT_MAXFILESIZE_LARGE \- maximum file size allowed to download
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXFILESIZE_LARGE,
curl_off_t size);
.fi
.SH DESCRIPTION
Pass a curl_off_t as parameter. This specifies the maximum accepted \fIsize\fP
(in bytes) of a file to download. If the file requested is found larger than
this value, the transfer is aborted and \fICURLE_FILESIZE_EXCEEDED\fP is
returned. Passing a zero \fIsize\fP disables this, and passing a negative \fIsize\fP
yields a \fICURLE_BAD_FUNCTION_ARGUMENT\fP.
The file size is not always known prior to the download start, and for such
transfers this option has no effect \- even if the file transfer eventually
ends up being larger than this given limit.
Since 8.4.0, this option also stops ongoing transfers if they reach this
threshold.
.SH DEFAULT
0, meaning disabled.
.SH PROTOCOLS
This functionality affects ftp, http and mqtt
.SH EXAMPLE
.nf
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode ret;
curl_off_t ridiculous = (curl_off_t)1 << 48;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
/* refuse to download if larger than ridiculous */
curl_easy_setopt(curl, CURLOPT_MAXFILESIZE_LARGE, ridiculous);
ret = curl_easy_perform(curl);
}
}
.fi
.SH AVAILABILITY
Added in curl 7.11.0
.SH RETURN VALUE
\fIcurl_easy_setopt(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 CURLOPT_MAXFILESIZE (3),
.BR CURLOPT_MAX_RECV_SPEED_LARGE (3)