From: Daniel Kubec <kubec@openssl.org>
Date: Wed, 21 Jan 2026 14:11:38 +0000 (+0100)
Subject: DOC: Add EVP_CIPHER_CTX_{get,set}_app_data documentation
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f5f85711192bddfabeec278ab4bec6c1de688ec5;p=thirdparty%2Fopenssl.git

DOC: Add EVP_CIPHER_CTX_{get,set}_app_data documentation

Fixes #9788

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
MergeDate: Fri Jan 23 10:27:16 2026
(Merged from https://github.com/openssl/openssl/pull/29704)
---

diff --git a/doc/build.info b/doc/build.info
index 07b77e4ef0e..7cda9c6175e 100644
--- a/doc/build.info
+++ b/doc/build.info
@@ -1139,6 +1139,10 @@ DEPEND[html/man3/EVP_BytesToKey.html]=man3/EVP_BytesToKey.pod
 GENERATE[html/man3/EVP_BytesToKey.html]=man3/EVP_BytesToKey.pod
 DEPEND[man/man3/EVP_BytesToKey.3]=man3/EVP_BytesToKey.pod
 GENERATE[man/man3/EVP_BytesToKey.3]=man3/EVP_BytesToKey.pod
+DEPEND[html/man3/EVP_CIPHER_CTX_get_app_data.html]=man3/EVP_CIPHER_CTX_get_app_data.pod
+GENERATE[html/man3/EVP_CIPHER_CTX_get_app_data.html]=man3/EVP_CIPHER_CTX_get_app_data.pod
+DEPEND[man/man3/EVP_CIPHER_CTX_get_app_data.3]=man3/EVP_CIPHER_CTX_get_app_data.pod
+GENERATE[man/man3/EVP_CIPHER_CTX_get_app_data.3]=man3/EVP_CIPHER_CTX_get_app_data.pod
 DEPEND[html/man3/EVP_CIPHER_CTX_get_cipher_data.html]=man3/EVP_CIPHER_CTX_get_cipher_data.pod
 GENERATE[html/man3/EVP_CIPHER_CTX_get_cipher_data.html]=man3/EVP_CIPHER_CTX_get_cipher_data.pod
 DEPEND[man/man3/EVP_CIPHER_CTX_get_cipher_data.3]=man3/EVP_CIPHER_CTX_get_cipher_data.pod
@@ -3326,6 +3330,7 @@ html/man3/ERR_remove_state.html \
 html/man3/ERR_set_mark.html \
 html/man3/EVP_ASYM_CIPHER_free.html \
 html/man3/EVP_BytesToKey.html \
+html/man3/EVP_CIPHER_CTX_get_app_data.html \
 html/man3/EVP_CIPHER_CTX_get_cipher_data.html \
 html/man3/EVP_CIPHER_CTX_get_original_iv.html \
 html/man3/EVP_DigestInit.html \
@@ -3997,6 +4002,7 @@ man/man3/ERR_remove_state.3 \
 man/man3/ERR_set_mark.3 \
 man/man3/EVP_ASYM_CIPHER_free.3 \
 man/man3/EVP_BytesToKey.3 \
+man/man3/EVP_CIPHER_CTX_get_app_data.3 \
 man/man3/EVP_CIPHER_CTX_get_cipher_data.3 \
 man/man3/EVP_CIPHER_CTX_get_original_iv.3 \
 man/man3/EVP_DigestInit.3 \
diff --git a/doc/man3/EVP_CIPHER_CTX_get_app_data.pod b/doc/man3/EVP_CIPHER_CTX_get_app_data.pod
new file mode 100644
index 00000000000..3865bb43908
--- /dev/null
+++ b/doc/man3/EVP_CIPHER_CTX_get_app_data.pod
@@ -0,0 +1,38 @@
+=pod
+
+=head1 NAME
+
+EVP_CIPHER_CTX_get_app_data, EVP_CIPHER_CTX_set_app_data - Routines to
+inspect and modify application data related to EVP_CIPHER_CTX
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx);
+ void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data);
+
+=head1 DESCRIPTION
+
+The functions EVP_CIPHER_CTX_set_app_data() and EVP_CIPHER_CTX_get_app_data()
+associate an opaque, application-defined pointer with an EVP_CIPHER_CTX object.
+
+This pointer is not interpreted by the library and is reserved entirely for use
+by the application. It may be used to store arbitrary context or state that
+needs to be accessible wherever the corresponding EVP_CIPHER_CTX is available.
+
+=head1 RETURN VALUES
+
+The EVP_CIPHER_CTX_get_app_data() function returns a opaque pointer to the
+current application data for the EVP_CIPHER_CTX.
+
+=head1 COPYRIGHT
+
+Copyright 2026 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the Apache License 2.0 (the "License").  You may not use
+this file except in compliance with the License.  You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
diff --git a/doc/man3/EVP_EncryptInit.pod b/doc/man3/EVP_EncryptInit.pod
index 9fd613b6eb3..aad412652c7 100644
--- a/doc/man3/EVP_EncryptInit.pod
+++ b/doc/man3/EVP_EncryptInit.pod
@@ -69,8 +69,6 @@ EVP_CIPHER_CTX_get_block_size,
 EVP_CIPHER_CTX_get_key_length,
 EVP_CIPHER_CTX_get_iv_length,
 EVP_CIPHER_CTX_get_tag_length,
-EVP_CIPHER_CTX_get_app_data,
-EVP_CIPHER_CTX_set_app_data,
 EVP_CIPHER_CTX_flags,
 EVP_CIPHER_CTX_set_flags,
 EVP_CIPHER_CTX_clear_flags,
@@ -228,8 +226,6 @@ EVP_CIPHER_CTX_mode
  int EVP_CIPHER_CTX_get_key_length(const EVP_CIPHER_CTX *ctx);
  int EVP_CIPHER_CTX_get_iv_length(const EVP_CIPHER_CTX *ctx);
  int EVP_CIPHER_CTX_get_tag_length(const EVP_CIPHER_CTX *ctx);
- void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx);
- void EVP_CIPHER_CTX_set_app_data(const EVP_CIPHER_CTX *ctx, void *data);
  int EVP_CIPHER_CTX_get_type(const EVP_CIPHER_CTX *ctx);
  int EVP_CIPHER_CTX_get_mode(const EVP_CIPHER_CTX *ctx);
  int EVP_CIPHER_CTX_get_num(const EVP_CIPHER_CTX *ctx);