Constify DSA-related code.

6 files changed, 35 insertions, 33 deletions

diff --git a/crypto/dsa/dsa.h b/crypto/dsa/dsa.h
index 65689a3426..4608b0f75e 100644
--- a/crypto/dsa/dsa.h
+++ b/crypto/dsa/dsa.h
@@ -154,19 +154,19 @@ struct dsa_st
 
 DSA_SIG * DSA_SIG_new(void);
 void	DSA_SIG_free(DSA_SIG *a);
-int	i2d_DSA_SIG(DSA_SIG *a, unsigned char **pp);
-DSA_SIG * d2i_DSA_SIG(DSA_SIG **v, unsigned char **pp, long length);
+int	i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp);
+DSA_SIG * d2i_DSA_SIG(DSA_SIG **v, const unsigned char **pp, long length);
 
 DSA_SIG * DSA_do_sign(const unsigned char *dgst,int dlen,DSA *dsa);
 int	DSA_do_verify(const unsigned char *dgst,int dgst_len,
 		      DSA_SIG *sig,DSA *dsa);
 
-DSA_METHOD *DSA_OpenSSL(void);
+const DSA_METHOD *DSA_OpenSSL(void);
 
-void        DSA_set_default_openssl_method(DSA_METHOD *);
-DSA_METHOD *DSA_get_default_openssl_method(void);
+void        DSA_set_default_openssl_method(const DSA_METHOD *);
+const DSA_METHOD *DSA_get_default_openssl_method(void);
 #if 0
-DSA_METHOD *DSA_set_method(DSA *dsa, DSA_METHOD *);
+const DSA_METHOD *DSA_set_method(DSA *dsa, DSA_METHOD *);
 #else
 int DSA_set_method(DSA *dsa, struct engine_st *engine);
 #endif
@@ -177,13 +177,13 @@ DSA *	DSA_new_method(DSA_METHOD *meth);
 #else
 DSA *	DSA_new_method(struct engine_st *engine);
 #endif
-int	DSA_size(DSA *);
+int	DSA_size(const DSA *);
 	/* next 4 return -1 on error */
 int	DSA_sign_setup( DSA *dsa,BN_CTX *ctx_in,BIGNUM **kinvp,BIGNUM **rp);
 int	DSA_sign(int type,const unsigned char *dgst,int dlen,
 		unsigned char *sig, unsigned int *siglen, DSA *dsa);
 int	DSA_verify(int type,const unsigned char *dgst,int dgst_len,
-		unsigned char *sigbuf, int siglen, DSA *dsa);
+		const unsigned char *sigbuf, int siglen, DSA *dsa);
 void	DSA_free (DSA *r);
 int DSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
 	     CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
@@ -192,24 +192,25 @@ void *DSA_get_ex_data(DSA *d, int idx);
 
 void	ERR_load_DSA_strings(void );
 
-DSA *	d2i_DSAPublicKey(DSA **a, unsigned char **pp, long length);
-DSA *	d2i_DSAPrivateKey(DSA **a, unsigned char **pp, long length);
-DSA * 	d2i_DSAparams(DSA **a, unsigned char **pp, long length);
-DSA *	DSA_generate_parameters(int bits, unsigned char *seed,int seed_len,
+DSA *	d2i_DSAPublicKey(DSA **a, const unsigned char **pp, long length);
+DSA *	d2i_DSAPrivateKey(DSA **a, const unsigned char **pp, long length);
+DSA * 	d2i_DSAparams(DSA **a, const unsigned char **pp, long length);
+DSA *	DSA_generate_parameters(int bits,
+		unsigned char *seed,int seed_len,
 		int *counter_ret, unsigned long *h_ret,void
 		(*callback)(int, int, void *),void *cb_arg);
 int	DSA_generate_key(DSA *a);
-int	i2d_DSAPublicKey(DSA *a, unsigned char **pp);
-int 	i2d_DSAPrivateKey(DSA *a, unsigned char **pp);
-int	i2d_DSAparams(DSA *a,unsigned char **pp);
+int	i2d_DSAPublicKey(const DSA *a, unsigned char **pp);
+int 	i2d_DSAPrivateKey(const DSA *a, unsigned char **pp);
+int	i2d_DSAparams(const DSA *a,unsigned char **pp);
 
 #ifndef NO_BIO
-int	DSAparams_print(BIO *bp, DSA *x);
-int	DSA_print(BIO *bp, DSA *x, int off);
+int	DSAparams_print(BIO *bp, const DSA *x);
+int	DSA_print(BIO *bp, const DSA *x, int off);
 #endif
 #ifndef NO_FP_API
-int	DSAparams_print_fp(FILE *fp, DSA *x);
-int	DSA_print_fp(FILE *bp, DSA *x, int off);
+int	DSAparams_print_fp(FILE *fp, const DSA *x);
+int	DSA_print_fp(FILE *bp, const DSA *x, int off);
 #endif
 
 #define DSS_prime_checks 50
@@ -221,7 +222,7 @@ int	DSA_print_fp(FILE *bp, DSA *x, int off);
 #ifndef NO_DH
 /* Convert DSA structure (key or just parameters) into DH structure
  * (be careful to avoid small subgroup attacks when using this!) */
-DH *DSA_dup_DH(DSA *r);
+DH *DSA_dup_DH(const DSA *r);
 #endif
 
 /* BEGIN ERROR CODES */
diff --git a/crypto/dsa/dsa_asn1.c b/crypto/dsa/dsa_asn1.c
index a76c8f7c7e..81c9c863b4 100644
--- a/crypto/dsa/dsa_asn1.c
+++ b/crypto/dsa/dsa_asn1.c
@@ -29,7 +29,7 @@ void DSA_SIG_free(DSA_SIG *r)
 	OPENSSL_free(r);
 }
 
-int i2d_DSA_SIG(DSA_SIG *v, unsigned char **pp)
+int i2d_DSA_SIG(const DSA_SIG *v, unsigned char **pp)
 {
 	int t=0,len;
 	ASN1_INTEGER rbs,sbs;
@@ -69,7 +69,7 @@ int i2d_DSA_SIG(DSA_SIG *v, unsigned char **pp)
 	return(t);
 }
 
-DSA_SIG *d2i_DSA_SIG(DSA_SIG **a, unsigned char **pp, long length)
+DSA_SIG *d2i_DSA_SIG(DSA_SIG **a, const unsigned char **pp, long length)
 {
 	int i=ERR_R_NESTED_ASN1_ERROR;
 	ASN1_INTEGER *bs=NULL;
diff --git a/crypto/dsa/dsa_gen.c b/crypto/dsa/dsa_gen.c
index 2294a362d9..e911e5ae73 100644
--- a/crypto/dsa/dsa_gen.c
+++ b/crypto/dsa/dsa_gen.c
@@ -79,7 +79,8 @@
 #include <openssl/dsa.h>
 #include <openssl/rand.h>
 
-DSA *DSA_generate_parameters(int bits, unsigned char *seed_in, int seed_len,
+DSA *DSA_generate_parameters(int bits,
+		unsigned char *seed_in, int seed_len,
 		int *counter_ret, unsigned long *h_ret,
 		void (*callback)(int, int, void *),
 		void *cb_arg)
diff --git a/crypto/dsa/dsa_lib.c b/crypto/dsa/dsa_lib.c
index b31b946ad3..5e5bff82ae 100644
--- a/crypto/dsa/dsa_lib.c
+++ b/crypto/dsa/dsa_lib.c
@@ -67,11 +67,11 @@
 
 const char *DSA_version="DSA" OPENSSL_VERSION_PTEXT;
 
-static DSA_METHOD *default_DSA_method;
+static const DSA_METHOD *default_DSA_method;
 static int dsa_meth_num = 0;
 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *dsa_meth = NULL;
 
-void DSA_set_default_openssl_method(DSA_METHOD *meth)
+void DSA_set_default_openssl_method(const DSA_METHOD *meth)
 {
 	ENGINE *e;
 	/* We'll need to notify the "openssl" ENGINE of this
@@ -90,7 +90,7 @@ void DSA_set_default_openssl_method(DSA_METHOD *meth)
 		}
 }
 
-DSA_METHOD *DSA_get_default_openssl_method(void)
+const DSA_METHOD *DSA_get_default_openssl_method(void)
 {
 	if(!default_DSA_method) default_DSA_method = DSA_OpenSSL();
 	return default_DSA_method;
@@ -115,7 +115,7 @@ DSA_METHOD *DSA_set_method(DSA *dsa, DSA_METHOD *meth)
 int DSA_set_method(DSA *dsa, ENGINE *engine)
 	{
 	ENGINE *mtmp;
-	DSA_METHOD *meth;
+	const DSA_METHOD *meth;
 	mtmp = dsa->engine;
 	meth = ENGINE_get_DSA(mtmp);
 	if (!ENGINE_init(engine))
@@ -137,7 +137,7 @@ DSA *DSA_new_method(DSA_METHOD *meth)
 DSA *DSA_new_method(ENGINE *engine)
 #endif
 	{
-	DSA_METHOD *meth;
+	const DSA_METHOD *meth;
 	DSA *ret;
 
 	ret=(DSA *)OPENSSL_malloc(sizeof(DSA));
@@ -186,7 +186,7 @@ DSA *DSA_new_method(ENGINE *engine)
 
 void DSA_free(DSA *r)
 	{
-	DSA_METHOD *meth;
+	const DSA_METHOD *meth;
 	int i;
 
 	if (r == NULL) return;
@@ -220,7 +220,7 @@ void DSA_free(DSA *r)
 	OPENSSL_free(r);
 	}
 
-int DSA_size(DSA *r)
+int DSA_size(const DSA *r)
 	{
 	int ret,i;
 	ASN1_INTEGER bs;
@@ -258,7 +258,7 @@ void *DSA_get_ex_data(DSA *d, int idx)
 	}
 
 #ifndef NO_DH
-DH *DSA_dup_DH(DSA *r)
+DH *DSA_dup_DH(const DSA *r)
 	{
 	/* DSA has p, q, g, optional pub_key, optional priv_key.
 	 * DH has p, optional length, g, optional pub_key, optional priv_key.
diff --git a/crypto/dsa/dsa_ossl.c b/crypto/dsa/dsa_ossl.c
index 96295dc24f..4b600fa731 100644
--- a/crypto/dsa/dsa_ossl.c
+++ b/crypto/dsa/dsa_ossl.c
@@ -92,7 +92,7 @@ dsa_finish,
 NULL
 };
 
-DSA_METHOD *DSA_OpenSSL(void)
+const DSA_METHOD *DSA_OpenSSL(void)
 {
 	return &openssl_dsa_meth;
 }
diff --git a/crypto/dsa/dsa_vrf.c b/crypto/dsa/dsa_vrf.c
index 2e891ae491..28b6712341 100644
--- a/crypto/dsa/dsa_vrf.c
+++ b/crypto/dsa/dsa_vrf.c
@@ -80,7 +80,7 @@ int DSA_do_verify(const unsigned char *dgst, int dgst_len, DSA_SIG *sig,
  *     -1: error
  */
 int DSA_verify(int type, const unsigned char *dgst, int dgst_len,
-	     unsigned char *sigbuf, int siglen, DSA *dsa)
+	     const unsigned char *sigbuf, int siglen, DSA *dsa)
 	{
 	DSA_SIG *s;
 	int ret=-1;