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docs: clarify CURLOPT_MAXFILESIZE and CURLOPT_MAXFILESIZE_LARGE

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The bounds of the size parameter were not specified, and nor was it
specified how to disable the maximum file size check.

The documentation also incorrectly stated that CURLOPT_MAXFILESIZE
always returns CURLE_OK and that CURLOPT_MAXFILESIZE_LARGE only returns
CURLE_OK or CURLE_UNKNOWN_OPTION.

It also did not mention what the default value is, which is zero. This
commit updates the documentation to make note of all these things.

Closes #13372
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blankie 2024-04-15 19:35:14 +10:00 committed by Daniel Stenberg
parent 5e46c2909f
commit e1f1ec028a
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2 changed files with 10 additions and 5 deletions
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7
docs/libcurl/opts/CURLOPT_MAXFILESIZE.md
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@ -28,6 +28,8 @@ CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXFILESIZE, long size);
Pass a long as parameter. This specifies the maximum accepted *size* (in
bytes) of a file to download. If the file requested is found larger than this
value, the transfer is aborted and *CURLE_FILESIZE_EXCEEDED* is returned.
Passing a zero *size* disables this, and passing a negative *size* yields a
*CURLE_BAD_FUNCTION_ARGUMENT*.
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
@ -40,7 +42,7 @@ threshold.
# DEFAULT
None
0, meaning disabled.
# EXAMPLE
@ -64,4 +66,5 @@ Always
# RETURN VALUE
Returns CURLE_OK
Returns CURLE_OK if the size passed is valid or CURLE_BAD_FUNCTION_ARGUMENT if
not.

8
docs/libcurl/opts/CURLOPT_MAXFILESIZE_LARGE.md
View File

@ -31,7 +31,8 @@ CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXFILESIZE_LARGE,
Pass a curl_off_t as parameter. This specifies the maximum accepted *size*
(in bytes) of a file to download. If the file requested is found larger than
this value, the transfer is aborted and *CURLE_FILESIZE_EXCEEDED* is
returned.
returned. Passing a zero *size* disables this, and passing a negative *size*
yields a *CURLE_BAD_FUNCTION_ARGUMENT*.
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
@ -42,7 +43,7 @@ threshold.
# DEFAULT
None
0, meaning disabled.
# EXAMPLE
@ -67,4 +68,5 @@ Added in 7.11.0
# RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
CURLE_BAD_FUNCTION_ARGUMENT if the size passed is invalid.