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-rw-r--r--docs/libcurl/curl_mime_filedata.36
1 files changed, 5 insertions, 1 deletions
diff --git a/docs/libcurl/curl_mime_filedata.3 b/docs/libcurl/curl_mime_filedata.3
index 9a57068de..f522d997f 100644
--- a/docs/libcurl/curl_mime_filedata.3
+++ b/docs/libcurl/curl_mime_filedata.3
@@ -36,7 +36,7 @@ data to a mime part.
\fIpart\fP is the part's to assign contents to.
\fIfilename\fP points to the nul-terminated file's path name. The pointer can
-be NULL to detach previous part contents settings. Filename storage can be
+be NULL to detach the previous part contents settings. Filename storage can be
safely be reused after this call.
As a side effect, the part's remote file name is set to the base name of the
@@ -47,6 +47,10 @@ The contents of the file is read during the file transfer in a streaming
manner to allow huge files to get transfered without using much memory. It
therefore requires that the file is kept intact during the entire request.
+If the file size cannot be determined before actually reading it (such as for
+a device or named pipe), the whole mime structure containing the part
+will be transferred as chunks by HTTP and rejected by IMAP.
+
Setting a part's contents twice is valid: only the value set by the last call
is retained.
.SH AVAILABILITY