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-rw-r--r--docs/libcurl/curl_easy_setopt.36
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/libcurl/curl_easy_setopt.3 b/docs/libcurl/curl_easy_setopt.3
index 81dac8d57..d378edb4d 100644
--- a/docs/libcurl/curl_easy_setopt.3
+++ b/docs/libcurl/curl_easy_setopt.3
@@ -270,6 +270,12 @@ of bytes actually taken care of, or return -1 to signal error to the library
(it will cause it to abort the transfer with a \fICURLE_WRITE_ERROR\fP return
code).
+If this option is not set, or if it is set to NULL, but
+\fICURLOPT_HEADERDATA\fP (\fICURLOPT_WRITEHEADER\fP) is set to anything but
+NULL, the function used to accept response data will be used instead. That is,
+it will be the function specified with \fICURLOPT_WRITEFUNCTION\fP, or if it
+is not specified or NULL - the default, stream-writing function.
+
Since 7.14.1: When a server sends a chunked encoded transfer, it may contain a
trailer. That trailer is identical to a HTTP header and if such a trailer is
received it is passed to the application using this callback as well. There