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-rw-r--r--docs/libcurl/opts/CURLOPT_CAINFO.36
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/libcurl/opts/CURLOPT_CAINFO.3 b/docs/libcurl/opts/CURLOPT_CAINFO.3
index a05f5c0cf..7db50a8fa 100644
--- a/docs/libcurl/opts/CURLOPT_CAINFO.3
+++ b/docs/libcurl/opts/CURLOPT_CAINFO.3
@@ -40,6 +40,12 @@ is assumed to be stored, as established at build time.
If curl is built against the NSS SSL library, the NSS PEM PKCS#11 module
(libnsspem.so) needs to be available for this option to work properly.
+
+(iOS and macOS only) If curl is built against Secure Transport, then this
+option is supported for backward compatibility with other SSL engines, but it
+should not be set. If the option is not set, then curl will use the
+certificates in the system and user Keychain to verify the peer, which is the
+preferred method of verifying the peer's certificate chain.
.SH DEFAULT
Built-in system specific
.SH PROTOCOLS