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-rw-r--r--docs/libcurl/curl_easy_setopt.33
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/libcurl/curl_easy_setopt.3 b/docs/libcurl/curl_easy_setopt.3
index 68fc0f328..ea009ca6c 100644
--- a/docs/libcurl/curl_easy_setopt.3
+++ b/docs/libcurl/curl_easy_setopt.3
@@ -233,6 +233,9 @@ perform operation will return the error code from this callback function. Set
the \fIparm\fP argument with the \fICURLOPT_SSL_CTX_DATA\fP option. This
option was introduced in 7.11.0.
+This function will get called on all new connections made to a server, during
+the SSL negotiation. The SSL_CTX pointer will be a new one every time.
+
\fBNOTE:\fP To use this properly, a non-trivial amount of knowledge of the
openssl libraries is necessary. Using this function allows for example to use
openssl callbacks to add additional validation code for certificates, and even