From 98eab43915245ce273bcb6b42569aae7c720ba4d Mon Sep 17 00:00:00 2001
From: =?utf8?q?Bodo=20M=C3=B6ller?= <bodo@openssl.org>
Date: Thu, 6 Feb 2003 18:00:20 +0000
Subject: [PATCH] EC_GROUP_get_extra_data() should not set an error when it
 returns NULL. (NB: this is not an API change because this internal function
 is unused in 0.9.7.  0.9.8-dev will use it, and will contain a similar
 change).

---
 crypto/ec/ec.h     | 2 --
 crypto/ec/ec_err.c | 2 --
 crypto/ec/ec_lib.c | 2 ++
 3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/crypto/ec/ec.h b/crypto/ec/ec.h
index a52d4edf14..6d6a9b7127 100644
--- a/crypto/ec/ec.h
+++ b/crypto/ec/ec.h
@@ -195,7 +195,6 @@ void ERR_load_EC_strings(void);
 #define EC_F_EC_GROUP_GET0_GENERATOR			 139
 #define EC_F_EC_GROUP_GET_COFACTOR			 140
 #define EC_F_EC_GROUP_GET_CURVE_GFP			 130
-#define EC_F_EC_GROUP_GET_EXTRA_DATA			 107
 #define EC_F_EC_GROUP_GET_ORDER				 141
 #define EC_F_EC_GROUP_NEW				 108
 #define EC_F_EC_GROUP_PRECOMPUTE_MULT			 142
@@ -232,7 +231,6 @@ void ERR_load_EC_strings(void);
 #define EC_R_INVALID_FIELD				 103
 #define EC_R_INVALID_FORM				 104
 #define EC_R_NOT_INITIALIZED				 111
-#define EC_R_NO_SUCH_EXTRA_DATA				 105
 #define EC_R_POINT_AT_INFINITY				 106
 #define EC_R_POINT_IS_NOT_ON_CURVE			 107
 #define EC_R_SLOT_FULL					 108
diff --git a/crypto/ec/ec_err.c b/crypto/ec/ec_err.c
index 394cdc021f..d37b6aba87 100644
--- a/crypto/ec/ec_err.c
+++ b/crypto/ec/ec_err.c
@@ -84,7 +84,6 @@ static ERR_STRING_DATA EC_str_functs[]=
 {ERR_PACK(0,EC_F_EC_GROUP_GET0_GENERATOR,0),	"EC_GROUP_get0_generator"},
 {ERR_PACK(0,EC_F_EC_GROUP_GET_COFACTOR,0),	"EC_GROUP_get_cofactor"},
 {ERR_PACK(0,EC_F_EC_GROUP_GET_CURVE_GFP,0),	"EC_GROUP_get_curve_GFp"},
-{ERR_PACK(0,EC_F_EC_GROUP_GET_EXTRA_DATA,0),	"EC_GROUP_get_extra_data"},
 {ERR_PACK(0,EC_F_EC_GROUP_GET_ORDER,0),	"EC_GROUP_get_order"},
 {ERR_PACK(0,EC_F_EC_GROUP_NEW,0),	"EC_GROUP_new"},
 {ERR_PACK(0,EC_F_EC_GROUP_PRECOMPUTE_MULT,0),	"EC_GROUP_precompute_mult"},
@@ -124,7 +123,6 @@ static ERR_STRING_DATA EC_str_reasons[]=
 {EC_R_INVALID_FIELD                      ,"invalid field"},
 {EC_R_INVALID_FORM                       ,"invalid form"},
 {EC_R_NOT_INITIALIZED                    ,"not initialized"},
-{EC_R_NO_SUCH_EXTRA_DATA                 ,"no such extra data"},
 {EC_R_POINT_AT_INFINITY                  ,"point at infinity"},
 {EC_R_POINT_IS_NOT_ON_CURVE              ,"point is not on curve"},
 {EC_R_SLOT_FULL                          ,"slot full"},
diff --git a/crypto/ec/ec_lib.c b/crypto/ec/ec_lib.c
index 1d2cc71eef..591cb4f12b 100644
--- a/crypto/ec/ec_lib.c
+++ b/crypto/ec/ec_lib.c
@@ -268,7 +268,9 @@ void *EC_GROUP_get_extra_data(const EC_GROUP *group, void *(*extra_data_dup_func
 		|| (group->extra_data_free_func != extra_data_free_func)
 		|| (group->extra_data_clear_free_func != extra_data_clear_free_func))
 		{
+#if 0 /* this was an error in 0.9.7, but that does not make a lot of sense */
 		ECerr(EC_F_EC_GROUP_GET_EXTRA_DATA, EC_R_NO_SUCH_EXTRA_DATA);
+#endif
 		return NULL;
 		}
 
-- 
2.25.1