Imported Upstream version 7.53.1

[platform/upstream/curl.git] / docs / libcurl / curl_formadd.3

diff --git a/docs/libcurl/curl_formadd.3 b/docs/libcurl/curl_formadd.3
index 6923913..5d1faa5 100644 (file)
--- a/docs/libcurl/curl_formadd.3
+++ b/docs/libcurl/curl_formadd.3
@@ -105,6 +105,8 @@ content then you must make sure strlen() on the data pointer returns zero.
 followed by a filename, causes that file to be read and its contents used
 as data in this part. This part does \fInot\fP automatically become a file
 upload part simply because its data was read from a file.
+
+The specified file needs to kept around until the associated transfer is done.
 .IP CURLFORM_FILE
 followed by a filename, makes this part a file upload part. It sets the
 \fIfilename\fP field to the basename of the provided filename, it reads the
@@ -117,6 +119,8 @@ providing multiple \fBCURLFORM_FILE\fP arguments each followed by the filename
 
 The given upload file has to exist in its full in the file system already when
 the upload starts, as libcurl needs to read the correct file size beforehand.
+
+The specified file needs to kept around until the associated transfer is done.
 .IP CURLFORM_CONTENTTYPE
 is used in combination with \fICURLFORM_FILE\fP. Followed by a pointer to a
 string which provides the content-type for this part, possibly instead of an
@@ -144,8 +148,8 @@ data. The parameter you pass to \fICURLFORM_STREAM\fP is the pointer passed on
 to the read callback's fourth argument. If you want the part to look like a
 file upload one, set the \fICURLFORM_FILENAME\fP parameter as well. Note that
 when using \fICURLFORM_STREAM\fP, \fICURLFORM_CONTENTSLENGTH\fP must also be
-set with the total expected length of the part. (Option added in libcurl
-7.18.2)
+set with the total expected length of the part unless the formpost is sent
+chunked encoded. (Option added in libcurl 7.18.2)
 .IP CURLFORM_ARRAY
 Another possibility to send options to curl_formadd() is the
 \fBCURLFORM_ARRAY\fP option, that passes a struct curl_forms array pointer as