Commit 8da5da9b authored by Daniel Stenberg's avatar Daniel Stenberg
Browse files

curl_formfree: clarify which pointer to free

parent 42c6b757
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+9 −8
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@@ -30,18 +30,19 @@ curl_formadd - add a section to a multipart/formdata HTTP POST
.ad
.SH DESCRIPTION
curl_formadd() is used to append sections when building a multipart/formdata
HTTP POST (sometimes referred to as RFC2388-style posts). Append one section at
a time until you've added all the sections you want included and then you pass
the \fIfirstitem\fP pointer as parameter to \fBCURLOPT_HTTPPOST\fP.
\fIlastitem\fP is set after each call and on repeated invokes it should be
left as set to allow repeated invokes to find the end of the list faster.
HTTP POST (sometimes referred to as RFC2388-style posts). Append one section
at a time until you've added all the sections you want included and then you
pass the \fIfirstitem\fP pointer as parameter to \fBCURLOPT_HTTPPOST\fP.
\fIlastitem\fP is set after each \fIcurl_formadd(3)\fP call and on repeated
invokes it should be left as set to allow repeated invokes to find the end of
the list faster.

After the \fIlastitem\fP pointer follow the real arguments.

The pointers \fI*firstitem\fP and \fI*lastitem\fP should both be pointing to
The pointers \fIfirstitem\fP and \fIlastitem\fP should both be pointing to
NULL in the first call to this function. All list-data will be allocated by
the function itself. You must call \fIcurl_formfree(3)\fP after the form post
has been done to free the resources.
the function itself. You must call \fIcurl_formfree(3)\fP on the
\fIfirstitem\P after the form post has been done to free the resources.

Using POST with HTTP 1.1 implies the use of a "Expect: 100-continue" header.
You can disable this header with \fICURLOPT_HTTPHEADER\fP as usual.
+4 −0
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@@ -32,6 +32,10 @@ curl_formfree() is used to clean up data previously built/appended with
\fIcurl_formadd(3)\fP. This must be called when the data has been used, which
typically means after \fIcurl_easy_perform(3)\fP has been called.

The pointer to free is the same pointer you passed to the
\fBCURLOPT_HTTPPOST\fP option, which is the \fIfirstitem\fP pointer from the
\fIcurl_formadd(3)\fP invoke(s).

\fBform\fP is the pointer as returned from a previous call to
\fIcurl_formadd(3)\fP and may be NULL.
.SH RETURN VALUE