Constify X509_PUBKEY_get(), X509_PUBKEY_get0(), and X509_PUBKEY_get0_param()

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/11894)

12 files changed, 20 insertions, 20 deletions

diff --git a/crypto/asn1/ameth_lib.c b/crypto/asn1/ameth_lib.c
index a006c7624d..8c7df51fe4 100644
--- a/crypto/asn1/ameth_lib.c
+++ b/crypto/asn1/ameth_lib.c
@@ -277,7 +277,7 @@ void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
 
 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
                               int (*pub_decode) (EVP_PKEY *pk,
-                                                 X509_PUBKEY *pub),
+                                                 const X509_PUBKEY *pub),
                               int (*pub_encode) (X509_PUBKEY *pub,
                                                  const EVP_PKEY *pk),
                               int (*pub_cmp) (const EVP_PKEY *a,
diff --git a/crypto/dh/dh_ameth.c b/crypto/dh/dh_ameth.c
index e76b655f40..d93d519444 100644
--- a/crypto/dh/dh_ameth.c
+++ b/crypto/dh/dh_ameth.c
@@ -52,7 +52,7 @@ static void int_dh_free(EVP_PKEY *pkey)
     DH_free(pkey->pkey.dh);
 }
 
-static int dh_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
+static int dh_pub_decode(EVP_PKEY *pkey, const X509_PUBKEY *pubkey)
 {
     const unsigned char *p, *pm;
     int pklen, pmlen;
diff --git a/crypto/dsa/dsa_ameth.c b/crypto/dsa/dsa_ameth.c
index f74b50ee9c..651b463235 100644
--- a/crypto/dsa/dsa_ameth.c
+++ b/crypto/dsa/dsa_ameth.c
@@ -27,7 +27,7 @@
 #include "internal/ffc.h"
 #include "dsa_local.h"
 
-static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
+static int dsa_pub_decode(EVP_PKEY *pkey, const X509_PUBKEY *pubkey)
 {
     const unsigned char *p, *pm;
     int pklen, pmlen;
diff --git a/crypto/ec/ec_ameth.c b/crypto/ec/ec_ameth.c
index cac0b682f9..6ccaef3815 100644
--- a/crypto/ec/ec_ameth.c
+++ b/crypto/ec/ec_ameth.c
@@ -141,7 +141,7 @@ static EC_KEY *eckey_type2param(int ptype, const void *pval)
     return NULL;
 }
 
-static int eckey_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
+static int eckey_pub_decode(EVP_PKEY *pkey, const X509_PUBKEY *pubkey)
 {
     const unsigned char *p = NULL;
     const void *pval;
diff --git a/crypto/ec/ecx_meth.c b/crypto/ec/ecx_meth.c
index eedb1c9259..8b63e6918d 100644
--- a/crypto/ec/ecx_meth.c
+++ b/crypto/ec/ecx_meth.c
@@ -126,7 +126,7 @@ static int ecx_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
     return 1;
 }
 
-static int ecx_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
+static int ecx_pub_decode(EVP_PKEY *pkey, const X509_PUBKEY *pubkey)
 {
     const unsigned char *p;
     int pklen;
diff --git a/crypto/rsa/rsa_ameth.c b/crypto/rsa/rsa_ameth.c
index e9eddde68e..6628e38342 100644
--- a/crypto/rsa/rsa_ameth.c
+++ b/crypto/rsa/rsa_ameth.c
@@ -101,7 +101,7 @@ static int rsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
     return 0;
 }
 
-static int rsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
+static int rsa_pub_decode(EVP_PKEY *pkey, const X509_PUBKEY *pubkey)
 {
     const unsigned char *p;
     int pklen;
diff --git a/crypto/x509/x_pubkey.c b/crypto/x509/x_pubkey.c
index d3e6af2552..c240a5f567 100644
--- a/crypto/x509/x_pubkey.c
+++ b/crypto/x509/x_pubkey.c
@@ -30,7 +30,7 @@ struct X509_pubkey_st {
     EVP_PKEY *pkey;
 };
 
-static int x509_pubkey_decode(EVP_PKEY **pk, X509_PUBKEY *key);
+static int x509_pubkey_decode(EVP_PKEY **pk, const X509_PUBKEY *key);
 
 /* Minor tweak to operation: free up EVP_PKEY */
 static int pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
@@ -151,7 +151,7 @@ int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey)
  */
 
 
-static int x509_pubkey_decode(EVP_PKEY **ppkey, X509_PUBKEY *key)
+static int x509_pubkey_decode(EVP_PKEY **ppkey, const X509_PUBKEY *key)
 {
     EVP_PKEY *pkey = EVP_PKEY_new();
 
@@ -188,7 +188,7 @@ static int x509_pubkey_decode(EVP_PKEY **ppkey, X509_PUBKEY *key)
     return 0;
 }
 
-EVP_PKEY *X509_PUBKEY_get0(X509_PUBKEY *key)
+EVP_PKEY *X509_PUBKEY_get0(const X509_PUBKEY *key)
 {
     EVP_PKEY *ret = NULL;
 
@@ -216,7 +216,7 @@ EVP_PKEY *X509_PUBKEY_get0(X509_PUBKEY *key)
     return NULL;
 }
 
-EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key)
+EVP_PKEY *X509_PUBKEY_get(const X509_PUBKEY *key)
 {
     EVP_PKEY *ret = X509_PUBKEY_get0(key);
 
@@ -453,7 +453,7 @@ int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj,
 
 int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg,
                            const unsigned char **pk, int *ppklen,
-                           X509_ALGOR **pa, X509_PUBKEY *pub)
+                           X509_ALGOR **pa, const X509_PUBKEY *pub)
 {
     if (ppkalg)
         *ppkalg = pub->algor->algorithm;
diff --git a/doc/man3/EVP_PKEY_ASN1_METHOD.pod b/doc/man3/EVP_PKEY_ASN1_METHOD.pod
index ed44749cc2..989008db07 100644
--- a/doc/man3/EVP_PKEY_ASN1_METHOD.pod
+++ b/doc/man3/EVP_PKEY_ASN1_METHOD.pod
@@ -43,7 +43,7 @@ EVP_PKEY_get0_asn1
 
  void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
                                int (*pub_decode) (EVP_PKEY *pk,
-                                                  X509_PUBKEY *pub),
+                                                  const X509_PUBKEY *pub),
                                int (*pub_encode) (X509_PUBKEY *pub,
                                                   const EVP_PKEY *pk),
                                int (*pub_cmp) (const EVP_PKEY *a,
diff --git a/doc/man3/X509_PUBKEY_new.pod b/doc/man3/X509_PUBKEY_new.pod
index 551031b82b..e2ff81235d 100644
--- a/doc/man3/X509_PUBKEY_new.pod
+++ b/doc/man3/X509_PUBKEY_new.pod
@@ -17,8 +17,8 @@ X509_PUBKEY_get0_param - SubjectPublicKeyInfo public key functions
  X509_PUBKEY *X509_PUBKEY_dup(const X509_PUBKEY *a);
 
  int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey);
- EVP_PKEY *X509_PUBKEY_get0(X509_PUBKEY *key);
- EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key);
+ EVP_PKEY *X509_PUBKEY_get0(const X509_PUBKEY *key);
+ EVP_PKEY *X509_PUBKEY_get(const X509_PUBKEY *key);
 
  EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp, long length);
  int i2d_PUBKEY(const EVP_PKEY *a, unsigned char **pp);
@@ -34,7 +34,7 @@ X509_PUBKEY_get0_param - SubjectPublicKeyInfo public key functions
                             unsigned char *penc, int penclen);
  int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg,
                             const unsigned char **pk, int *ppklen,
-                            X509_ALGOR **pa, X509_PUBKEY *pub);
+                            X509_ALGOR **pa, const X509_PUBKEY *pub);
 
 =head1 DESCRIPTION
 
diff --git a/include/crypto/asn1.h b/include/crypto/asn1.h
index aaf091f8a5..d3683649bc 100644
--- a/include/crypto/asn1.h
+++ b/include/crypto/asn1.h
@@ -19,7 +19,7 @@ struct evp_pkey_asn1_method_st {
     unsigned long pkey_flags;
     char *pem_str;
     char *info;
-    int (*pub_decode) (EVP_PKEY *pk, X509_PUBKEY *pub);
+    int (*pub_decode) (EVP_PKEY *pk, const X509_PUBKEY *pub);
     int (*pub_encode) (X509_PUBKEY *pub, const EVP_PKEY *pk);
     int (*pub_cmp) (const EVP_PKEY *a, const EVP_PKEY *b);
     int (*pub_print) (BIO *out, const EVP_PKEY *pkey, int indent,
diff --git a/include/openssl/evp.h b/include/openssl/evp.h
index 0d5ce07f31..3d2e161549 100644
--- a/include/openssl/evp.h
+++ b/include/openssl/evp.h
@@ -1306,7 +1306,7 @@ void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth);
 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
                               int (*pub_decode) (EVP_PKEY *pk,
-                                                 X509_PUBKEY *pub),
+                                                 const X509_PUBKEY *pub),
                               int (*pub_encode) (X509_PUBKEY *pub,
                                                  const EVP_PKEY *pk),
                               int (*pub_cmp) (const EVP_PKEY *a,
diff --git a/include/openssl/x509.h b/include/openssl/x509.h
index d709c53ced..29cada6692 100644
--- a/include/openssl/x509.h
+++ b/include/openssl/x509.h
@@ -519,8 +519,8 @@ DECLARE_ASN1_FUNCTIONS(X509_VAL)
 DECLARE_ASN1_FUNCTIONS(X509_PUBKEY)
 
 int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey);
-EVP_PKEY *X509_PUBKEY_get0(X509_PUBKEY *key);
-EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key);
+EVP_PKEY *X509_PUBKEY_get0(const X509_PUBKEY *key);
+EVP_PKEY *X509_PUBKEY_get(const X509_PUBKEY *key);
 int X509_get_pubkey_parameters(EVP_PKEY *pkey, STACK_OF(X509) *chain);
 long X509_get_pathlen(X509 *x);
 DECLARE_ASN1_ENCODE_FUNCTIONS_only(EVP_PKEY, PUBKEY)
@@ -1052,7 +1052,7 @@ int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj,
                            unsigned char *penc, int penclen);
 int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg,
                            const unsigned char **pk, int *ppklen,
-                           X509_ALGOR **pa, X509_PUBKEY *pub);
+                           X509_ALGOR **pa, const X509_PUBKEY *pub);
 
 int X509_check_trust(X509 *x, int id, int flags);
 int X509_TRUST_get_count(void);