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curl_easy_setopt: tweak the string copy wording

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Reported-by: Yaobin Wen
Fixes #7632
Closes #7634
This commit is contained in:
Daniel Stenberg 2021-08-26 07:51:19 +02:00
parent 92f2a0a06b
commit 1a042be270
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1 changed files with 5 additions and 5 deletions
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10
docs/libcurl/curl_easy_setopt.3
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@ -44,11 +44,11 @@ you must change them between the transfers. You can optionally reset all
options back to internal default with \fIcurl_easy_reset(3)\fP.
Strings passed to libcurl as 'char *' arguments, are copied by the library;
thus the string storage associated to the pointer argument may be overwritten
after \fIcurl_easy_setopt(3)\fP returns. The only exception to this rule is
really \fICURLOPT_POSTFIELDS(3)\fP, but the alternative that copies the string
\fICURLOPT_COPYPOSTFIELDS(3)\fP has some usage characteristics you need to
read up on. This function does not accept input strings longer than
the string storage associated to the pointer argument may be discarded or
reused after \fIcurl_easy_setopt(3)\fP returns. The only exception to this
rule is really \fICURLOPT_POSTFIELDS(3)\fP, but the alternative that copies
the string \fICURLOPT_COPYPOSTFIELDS(3)\fP has some usage characteristics you
need to read up on. This function does not accept input strings longer than
\fBCURL_MAX_INPUT_LENGTH\fP (8 MB).
The order in which the options are set does not matter.