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89f38c168c
It was not really clear, but it has worked like this since 8.4.0 which now is a while. Closes #21582
79 lines
1.9 KiB
Markdown
79 lines
1.9 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_MAXFILESIZE
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_MAXFILESIZE_LARGE (3)
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- CURLOPT_MAX_RECV_SPEED_LARGE (3)
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Protocol:
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- All
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Added-in: 7.10.8
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---
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# NAME
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CURLOPT_MAXFILESIZE - maximum file size allowed to 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_setopt(CURL *handle, CURLOPT_MAXFILESIZE, long size);
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~~~
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# DESCRIPTION
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Pass a long as parameter. This specifies the maximum accepted *size* (in
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bytes) of a file to download. If the file requested is found larger than this
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value, the transfer is aborted and *CURLE_FILESIZE_EXCEEDED* is returned.
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Passing a zero *size* disables this, and passing a negative *size* yields a
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*CURLE_BAD_FUNCTION_ARGUMENT*.
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If you want a limit above 2GB, use CURLOPT_MAXFILESIZE_LARGE(3).
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If the size is known to be too big before the transfer starts, libcurl
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aborts before starting the transfer. If it is instead found to be too big
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while the transfer is in progress, libcurl aborts the transfer once the
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received bytes exceed the limit.
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Since 8.20.0, this option also aborts ongoing transfers once the
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decompressed bytes exceed this threshold due to automatic decompression using
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CURLOPT_ACCEPT_ENCODING(3).
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# DEFAULT
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0, meaning disabled.
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# %PROTOCOLS%
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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 result;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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/* refuse to download if larger than 1000 bytes */
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curl_easy_setopt(curl, CURLOPT_MAXFILESIZE, 1000L);
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result = curl_easy_perform(curl);
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}
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}
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~~~
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# %AVAILABILITY%
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# HISTORY
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Before curl 8.4.0, the limit was not applied to transfers in progress.
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# RETURN VALUE
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curl_easy_setopt(3) returns a CURLcode indicating success or error.
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CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
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libcurl-errors(3).
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