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setopt: return CURLE_BAD_FUNCTION_ARGUMENT on bad argument

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Fixed two return code mixups. CURLE_UNKNOWN_OPTION is saved for when the
option is, yeah, not known. Clarified this in the setopt man page too.

Closes #5993
This commit is contained in:
Daniel Stenberg 2020-09-21 23:27:21 +02:00
parent f4873ebd0b
commit a8e08a87df
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2 changed files with 12 additions and 17 deletions
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3
docs/libcurl/curl_easy_setopt.3
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@ -645,6 +645,9 @@ Strings passed on to libcurl must be shorter than 8000000 bytes, otherwise
\fIcurl_easy_setopt(3)\fP returns \fBCURLE_BAD_FUNCTION_ARGUMENT\fP (added in
7.65.0).
\fBCURLE_BAD_FUNCTION_ARGUMENT\fP is returned when the argument to an option
is invalid, like perhaps out of range.a
If you try to set an option that libcurl doesn't know about, perhaps because
the library is too old to support it or the option was removed in a recent
version, this function will return \fICURLE_UNKNOWN_OPTION\fP. If support for