constify X509_ALGOR_get0()

Reviewed-by: NRichard Levitte <levitte@openssl.org>

apps/pkcs12.c

@@ -523,7 +523,7 @@ int pkcs12_main(int argc, char **argv)
     if ((options & INFO) && PKCS12_mac_present(p12)) {
         ASN1_INTEGER *tmaciter;
         X509_ALGOR *macalgid;
-        ASN1_OBJECT *macobj;
+        const ASN1_OBJECT *macobj;
         PKCS12_get0_mac(NULL, &macalgid, NULL, &tmaciter, p12);
         X509_ALGOR_get0(&macobj, NULL, NULL, macalgid);
         BIO_puts(bio_err, "MAC:");
@@ -743,8 +743,8 @@ end:
 static int alg_print(X509_ALGOR *alg)
 {
     int pbenid, aparamtype;
-    ASN1_OBJECT *aoid;
-    void *aparam;
+    const ASN1_OBJECT *aoid;
+    const void *aparam;
     PBEPARAM *pbe = NULL;
 
     X509_ALGOR_get0(&aoid, &aparamtype, &aparam, alg);

crypto/asn1/x_algor.c

@@ -50,8 +50,8 @@ int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval)
     return 1;
 }
 
-void X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval,
-                     X509_ALGOR *algor)
+void X509_ALGOR_get0(const ASN1_OBJECT **paobj, int *pptype,
+                     const void **ppval, const X509_ALGOR *algor)
 {
     if (paobj)
         *paobj = algor->algorithm;

crypto/cms/cms_lib.c

@@ -286,7 +286,7 @@ int CMS_set_detached(CMS_ContentInfo *cms, int detached)
 BIO *cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm)
 {
     BIO *mdbio = NULL;
-    ASN1_OBJECT *digestoid;
+    const ASN1_OBJECT *digestoid;
     const EVP_MD *digest;
     X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm);
     digest = EVP_get_digestbyobj(digestoid);
@@ -312,7 +312,7 @@ int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,
                                  X509_ALGOR *mdalg)
 {
     int nid;
-    ASN1_OBJECT *mdoid;
+    const ASN1_OBJECT *mdoid;
     X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg);
     nid = OBJ_obj2nid(mdoid);
     /* Look for digest type to match signature */

crypto/cms/cms_sd.c

@@ -285,7 +285,7 @@ CMS_SignerInfo *CMS_add1_signer(CMS_ContentInfo *cms,
 
     /* See if digest is present in digestAlgorithms */
     for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++) {
-        ASN1_OBJECT *aoid;
+        const ASN1_OBJECT *aoid;
         alg = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
         X509_ALGOR_get0(&aoid, NULL, NULL, alg);
         if (OBJ_obj2nid(aoid) == EVP_MD_type(md))

crypto/dh/dh_ameth.c

@@ -47,8 +47,8 @@ static int dh_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
     const unsigned char *p, *pm;
     int pklen, pmlen;
     int ptype;
-    void *pval;
-    ASN1_STRING *pstr;
+    const void *pval;
+    const ASN1_STRING *pstr;
     X509_ALGOR *palg;
     ASN1_INTEGER *public_key = NULL;
 
@@ -152,8 +152,8 @@ static int dh_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
     const unsigned char *p, *pm;
     int pklen, pmlen;
     int ptype;
-    void *pval;
-    ASN1_STRING *pstr;
+    const void *pval;
+    const ASN1_STRING *pstr;
     X509_ALGOR *palg;
     ASN1_INTEGER *privkey = NULL;
 
@@ -574,9 +574,9 @@ const EVP_PKEY_ASN1_METHOD dhx_asn1_meth = {
 static int dh_cms_set_peerkey(EVP_PKEY_CTX *pctx,
                               X509_ALGOR *alg, ASN1_BIT_STRING *pubkey)
 {
-    ASN1_OBJECT *aoid;
+    const ASN1_OBJECT *aoid;
     int atype;
-    void *aval;
+    const void *aval;
     ASN1_INTEGER *public_key = NULL;
     int rv = 0;
     EVP_PKEY *pkpeer = NULL, *pk = NULL;
@@ -741,7 +741,7 @@ static int dh_cms_encrypt(CMS_RecipientInfo *ri)
     EVP_CIPHER_CTX *ctx;
     int keylen;
     X509_ALGOR *talg, *wrap_alg = NULL;
-    ASN1_OBJECT *aoid;
+    const ASN1_OBJECT *aoid;
     ASN1_BIT_STRING *pubkey;
     ASN1_STRING *wrap_str;
     ASN1_OCTET_STRING *ukm;

crypto/dsa/dsa_ameth.c

@@ -22,8 +22,8 @@ static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
     const unsigned char *p, *pm;
     int pklen, pmlen;
     int ptype;
-    void *pval;
-    ASN1_STRING *pstr;
+    const void *pval;
+    const ASN1_STRING *pstr;
     X509_ALGOR *palg;
     ASN1_INTEGER *public_key = NULL;
 
@@ -135,8 +135,8 @@ static int dsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
     const unsigned char *p, *pm;
     int pklen, pmlen;
     int ptype;
-    void *pval;
-    ASN1_STRING *pstr;
+    const void *pval;
+    const ASN1_STRING *pstr;
     X509_ALGOR *palg;
     ASN1_INTEGER *privkey = NULL;
     BN_CTX *ctx = NULL;

crypto/ec/ec_ameth.c

@@ -89,11 +89,11 @@ static int eckey_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
     return 0;
 }
 
-static EC_KEY *eckey_type2param(int ptype, void *pval)
+static EC_KEY *eckey_type2param(int ptype, const void *pval)
 {
     EC_KEY *eckey = NULL;
     if (ptype == V_ASN1_SEQUENCE) {
-        ASN1_STRING *pstr = pval;
+        const ASN1_STRING *pstr = pval;
         const unsigned char *pm = NULL;
         int pmlen;
         pm = pstr->data;
@@ -103,7 +103,7 @@ static EC_KEY *eckey_type2param(int ptype, void *pval)
             goto ecerr;
         }
     } else if (ptype == V_ASN1_OBJECT) {
-        ASN1_OBJECT *poid = pval;
+        const ASN1_OBJECT *poid = pval;
         EC_GROUP *group;
 
         /*
@@ -135,7 +135,7 @@ static EC_KEY *eckey_type2param(int ptype, void *pval)
 static int eckey_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
 {
     const unsigned char *p = NULL;
-    void *pval;
+    const void *pval;
     int ptype, pklen;
     EC_KEY *eckey = NULL;
     X509_ALGOR *palg;
@@ -182,7 +182,7 @@ static int eckey_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
 static int eckey_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
 {
     const unsigned char *p = NULL;
-    void *pval;
+    const void *pval;
     int ptype, pklen;
     EC_KEY *eckey = NULL;
     X509_ALGOR *palg;
@@ -562,9 +562,9 @@ int ECParameters_print(BIO *bp, const EC_KEY *x)
 static int ecdh_cms_set_peerkey(EVP_PKEY_CTX *pctx,
                                 X509_ALGOR *alg, ASN1_BIT_STRING *pubkey)
 {
-    ASN1_OBJECT *aoid;
+    const ASN1_OBJECT *aoid;
     int atype;
-    void *aval;
+    const void *aval;
     int rv = 0;
     EVP_PKEY *pkpeer = NULL;
     EC_KEY *ecpeer = NULL;
@@ -738,7 +738,7 @@ static int ecdh_cms_encrypt(CMS_RecipientInfo *ri)
     EVP_CIPHER_CTX *ctx;
     int keylen;
     X509_ALGOR *talg, *wrap_alg = NULL;
-    ASN1_OBJECT *aoid;
+    const ASN1_OBJECT *aoid;
     ASN1_BIT_STRING *pubkey;
     ASN1_STRING *wrap_str;
     ASN1_OCTET_STRING *ukm;

crypto/pkcs12/p12_mutl.c

@@ -75,7 +75,7 @@ int PKCS12_gen_mac(PKCS12 *p12, const char *pass, int passlen,
     int md_size = 0;
     int md_type_nid;
     X509_ALGOR *macalg;
-    ASN1_OBJECT *macoid;
+    const ASN1_OBJECT *macoid;
 
     if (!PKCS7_type_is_data(p12->authsafes)) {
         PKCS12err(PKCS12_F_PKCS12_GEN_MAC, PKCS12_R_CONTENT_TYPE_NOT_DATA);

doc/crypto/X509_ALGOR_dup.pod

@@ -10,8 +10,8 @@ X509_ALGOR_dup, X509_ALGOR_set0, X509_ALGOR_get0, X509_ALGOR_set_md, X509_ALGOR_
 
  X509_ALGOR *X509_ALGOR_dup(X509_ALGOR *alg);
  int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval);
- void X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval,
-                      X509_ALGOR *alg);
+ void X509_ALGOR_get0(const ASN1_OBJECT **paobj, int *pptype,
+                      const void **ppval, const X509_ALGOR *alg);
  void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md);
  int X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b);
 

include/openssl/x509.h

@@ -463,8 +463,8 @@ X509_REQ *X509_REQ_dup(X509_REQ *req);
 X509_ALGOR *X509_ALGOR_dup(X509_ALGOR *xn);
 int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype,
                     void *pval);
-void X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval,
-                     X509_ALGOR *algor);
+void X509_ALGOR_get0(const ASN1_OBJECT **paobj, int *pptype,
+                     const void **ppval, const X509_ALGOR *algor);
 void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md);
 int X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b);