make some parameters const

4 files changed, 36 insertions, 32 deletions

diff --git a/crypto/asn1/a_int.c b/crypto/asn1/a_int.c
index f8d198efb1..c6fd204ae3 100644
--- a/crypto/asn1/a_int.c
+++ b/crypto/asn1/a_int.c
@@ -61,10 +61,10 @@
 #include <openssl/asn1.h>
 #include <openssl/bn.h>
 
-ASN1_INTEGER *ASN1_INTEGER_dup(ASN1_INTEGER *x)
+ASN1_INTEGER *ASN1_INTEGER_dup(const ASN1_INTEGER *x)
 { return M_ASN1_INTEGER_dup(x);}
 
-int ASN1_INTEGER_cmp(ASN1_INTEGER *x, ASN1_INTEGER *y)
+int ASN1_INTEGER_cmp(const ASN1_INTEGER *x, const ASN1_INTEGER *y)
 	{ 
 	int neg, ret;
 	/* Compare signs */
@@ -373,7 +373,7 @@ int ASN1_INTEGER_set(ASN1_INTEGER *a, long v)
 	return(1);
 	}
 
-long ASN1_INTEGER_get(ASN1_INTEGER *a)
+long ASN1_INTEGER_get(const ASN1_INTEGER *a)
 	{
 	int neg=0,i;
 	long r=0;
@@ -402,7 +402,7 @@ long ASN1_INTEGER_get(ASN1_INTEGER *a)
 	return(r);
 	}
 
-ASN1_INTEGER *BN_to_ASN1_INTEGER(BIGNUM *bn, ASN1_INTEGER *ai)
+ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai)
 	{
 	ASN1_INTEGER *ret;
 	int len,j;
@@ -444,7 +444,7 @@ err:
 	return(NULL);
 	}
 
-BIGNUM *ASN1_INTEGER_to_BN(ASN1_INTEGER *ai, BIGNUM *bn)
+BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn)
 	{
 	BIGNUM *ret;
 
diff --git a/crypto/asn1/a_octet.c b/crypto/asn1/a_octet.c
index 24fd0f8e5a..e8725e44f1 100644
--- a/crypto/asn1/a_octet.c
+++ b/crypto/asn1/a_octet.c
@@ -60,10 +60,10 @@
 #include "cryptlib.h"
 #include <openssl/asn1.h>
 
-ASN1_OCTET_STRING *ASN1_OCTET_STRING_dup(ASN1_OCTET_STRING *x)
+ASN1_OCTET_STRING *ASN1_OCTET_STRING_dup(const ASN1_OCTET_STRING *x)
 { return M_ASN1_OCTET_STRING_dup(x); }
 
-int ASN1_OCTET_STRING_cmp(ASN1_OCTET_STRING *a, ASN1_OCTET_STRING *b)
+int ASN1_OCTET_STRING_cmp(const ASN1_OCTET_STRING *a, const ASN1_OCTET_STRING *b)
 { return M_ASN1_OCTET_STRING_cmp(a, b); }
 
 int ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *x, const unsigned char *d, int len)
diff --git a/crypto/asn1/asn1.h b/crypto/asn1/asn1.h
index 821a17a62a..9f6e1b99b3 100644
--- a/crypto/asn1/asn1.h
+++ b/crypto/asn1/asn1.h
@@ -548,32 +548,34 @@ typedef struct BIT_STRING_BITNAME_st {
 		ASN1_STRING_type_new(V_ASN1_BIT_STRING)
 #define M_ASN1_BIT_STRING_free(a)	ASN1_STRING_free((ASN1_STRING *)a)
 #define M_ASN1_BIT_STRING_dup(a) (ASN1_BIT_STRING *)\
-		ASN1_STRING_dup((ASN1_STRING *)a)
+		ASN1_STRING_dup((const ASN1_STRING *)a)
 #define M_ASN1_BIT_STRING_cmp(a,b) ASN1_STRING_cmp(\
-		(ASN1_STRING *)a,(ASN1_STRING *)b)
+		(const ASN1_STRING *)a,(const ASN1_STRING *)b)
 #define M_ASN1_BIT_STRING_set(a,b,c) ASN1_STRING_set((ASN1_STRING *)a,b,c)
 
 #define M_ASN1_INTEGER_new()	(ASN1_INTEGER *)\
 		ASN1_STRING_type_new(V_ASN1_INTEGER)
 #define M_ASN1_INTEGER_free(a)		ASN1_STRING_free((ASN1_STRING *)a)
-#define M_ASN1_INTEGER_dup(a) (ASN1_INTEGER *)ASN1_STRING_dup((ASN1_STRING *)a)
+#define M_ASN1_INTEGER_dup(a) (ASN1_INTEGER *)\
+		ASN1_STRING_dup((const ASN1_STRING *)a)
 #define M_ASN1_INTEGER_cmp(a,b)	ASN1_STRING_cmp(\
-		(ASN1_STRING *)a,(ASN1_STRING *)b)
+		(const ASN1_STRING *)a,(const ASN1_STRING *)b)
 
 #define M_ASN1_ENUMERATED_new()	(ASN1_ENUMERATED *)\
 		ASN1_STRING_type_new(V_ASN1_ENUMERATED)
 #define M_ASN1_ENUMERATED_free(a)	ASN1_STRING_free((ASN1_STRING *)a)
-#define M_ASN1_ENUMERATED_dup(a) (ASN1_ENUMERATED *)ASN1_STRING_dup((ASN1_STRING *)a)
+#define M_ASN1_ENUMERATED_dup(a) (ASN1_ENUMERATED *)\
+		ASN1_STRING_dup((const ASN1_STRING *)a)
 #define M_ASN1_ENUMERATED_cmp(a,b)	ASN1_STRING_cmp(\
-		(ASN1_STRING *)a,(ASN1_STRING *)b)
+		(const ASN1_STRING *)a,(const ASN1_STRING *)b)
 
 #define M_ASN1_OCTET_STRING_new()	(ASN1_OCTET_STRING *)\
 		ASN1_STRING_type_new(V_ASN1_OCTET_STRING)
 #define M_ASN1_OCTET_STRING_free(a)	ASN1_STRING_free((ASN1_STRING *)a)
 #define M_ASN1_OCTET_STRING_dup(a) (ASN1_OCTET_STRING *)\
-		ASN1_STRING_dup((ASN1_STRING *)a)
+		ASN1_STRING_dup((const ASN1_STRING *)a)
 #define M_ASN1_OCTET_STRING_cmp(a,b) ASN1_STRING_cmp(\
-		(ASN1_STRING *)a,(ASN1_STRING *)b)
+		(const ASN1_STRING *)a,(const ASN1_STRING *)b)
 #define M_ASN1_OCTET_STRING_set(a,b,c)	ASN1_STRING_set((ASN1_STRING *)a,b,c)
 #define M_ASN1_OCTET_STRING_print(a,b)	ASN1_STRING_print(a,(ASN1_STRING *)b)
 #define M_i2d_ASN1_OCTET_STRING(a,pp) \
@@ -656,7 +658,7 @@ typedef struct BIT_STRING_BITNAME_st {
 		ASN1_STRING_type_new(V_ASN1_IA5STRING)
 #define M_ASN1_IA5STRING_free(a)	ASN1_STRING_free((ASN1_STRING *)a)
 #define M_ASN1_IA5STRING_dup(a)	\
-			(ASN1_IA5STRING *)ASN1_STRING_dup((ASN1_STRING *)a)
+		(ASN1_IA5STRING *)ASN1_STRING_dup((const ASN1_STRING *)a)
 #define M_i2d_ASN1_IA5STRING(a,pp) \
 		i2d_ASN1_bytes((ASN1_STRING *)a,pp,V_ASN1_IA5STRING,\
 			V_ASN1_UNIVERSAL)
@@ -667,18 +669,20 @@ typedef struct BIT_STRING_BITNAME_st {
 #define M_ASN1_UTCTIME_new()	(ASN1_UTCTIME *)\
 		ASN1_STRING_type_new(V_ASN1_UTCTIME)
 #define M_ASN1_UTCTIME_free(a)	ASN1_STRING_free((ASN1_STRING *)a)
-#define M_ASN1_UTCTIME_dup(a) (ASN1_UTCTIME *)ASN1_STRING_dup((ASN1_STRING *)a)
+#define M_ASN1_UTCTIME_dup(a) (ASN1_UTCTIME *)\
+		ASN1_STRING_dup((const ASN1_STRING *)a)
 
 #define M_ASN1_GENERALIZEDTIME_new()	(ASN1_GENERALIZEDTIME *)\
 		ASN1_STRING_type_new(V_ASN1_GENERALIZEDTIME)
 #define M_ASN1_GENERALIZEDTIME_free(a)	ASN1_STRING_free((ASN1_STRING *)a)
 #define M_ASN1_GENERALIZEDTIME_dup(a) (ASN1_GENERALIZEDTIME *)ASN1_STRING_dup(\
-	(ASN1_STRING *)a)
+	(const ASN1_STRING *)a)
 
 #define M_ASN1_TIME_new()	(ASN1_TIME *)\
 		ASN1_STRING_type_new(V_ASN1_UTCTIME)
 #define M_ASN1_TIME_free(a)	ASN1_STRING_free((ASN1_STRING *)a)
-#define M_ASN1_TIME_dup(a) (ASN1_TIME *)ASN1_STRING_dup((ASN1_STRING *)a)
+#define M_ASN1_TIME_dup(a) (ASN1_TIME *)\
+	ASN1_STRING_dup((const ASN1_STRING *)a)
 
 #define M_ASN1_GENERALSTRING_new()	(ASN1_GENERALSTRING *)\
 		ASN1_STRING_type_new(V_ASN1_GENERALSTRING)
@@ -755,13 +759,13 @@ DECLARE_ASN1_SET_OF(ASN1_OBJECT)
 
 ASN1_STRING *	ASN1_STRING_new(void);
 void		ASN1_STRING_free(ASN1_STRING *a);
-ASN1_STRING *	ASN1_STRING_dup(ASN1_STRING *a);
+ASN1_STRING *	ASN1_STRING_dup(const ASN1_STRING *a);
 ASN1_STRING *	ASN1_STRING_type_new(int type );
-int 		ASN1_STRING_cmp(ASN1_STRING *a, ASN1_STRING *b);
+int 		ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b);
   /* Since this is used to store all sorts of things, via macros, for now, make
      its data void * */
 int 		ASN1_STRING_set(ASN1_STRING *str, const void *data, int len);
-int ASN1_STRING_length(ASN1_STRING *x);
+int ASN1_STRING_length(const ASN1_STRING *x);
 void ASN1_STRING_length_set(ASN1_STRING *x, int n);
 int ASN1_STRING_type(ASN1_STRING *x);
 unsigned char * ASN1_STRING_data(ASN1_STRING *x);
@@ -794,8 +798,8 @@ ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a,const unsigned char **pp,
 			long length);
 ASN1_INTEGER *d2i_ASN1_UINTEGER(ASN1_INTEGER **a,const unsigned char **pp,
 			long length);
-ASN1_INTEGER *	ASN1_INTEGER_dup(ASN1_INTEGER *x);
-int ASN1_INTEGER_cmp(ASN1_INTEGER *x, ASN1_INTEGER *y);
+ASN1_INTEGER *	ASN1_INTEGER_dup(const ASN1_INTEGER *x);
+int ASN1_INTEGER_cmp(const ASN1_INTEGER *x, const ASN1_INTEGER *y);
 
 DECLARE_ASN1_FUNCTIONS(ASN1_ENUMERATED)
 
@@ -812,8 +816,8 @@ ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,time_t t)
 int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str);
 
 DECLARE_ASN1_FUNCTIONS(ASN1_OCTET_STRING)
-ASN1_OCTET_STRING *	ASN1_OCTET_STRING_dup(ASN1_OCTET_STRING *a);
-int 	ASN1_OCTET_STRING_cmp(ASN1_OCTET_STRING *a, ASN1_OCTET_STRING *b);
+ASN1_OCTET_STRING *	ASN1_OCTET_STRING_dup(const ASN1_OCTET_STRING *a);
+int 	ASN1_OCTET_STRING_cmp(const ASN1_OCTET_STRING *a, const ASN1_OCTET_STRING *b);
 int 	ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *str, const unsigned char *data, int len);
 
 DECLARE_ASN1_FUNCTIONS(ASN1_VISIBLESTRING)
@@ -865,9 +869,9 @@ ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data,int len,
 	const char *sn, const char *ln);
 
 int ASN1_INTEGER_set(ASN1_INTEGER *a, long v);
-long ASN1_INTEGER_get(ASN1_INTEGER *a);
-ASN1_INTEGER *BN_to_ASN1_INTEGER(BIGNUM *bn, ASN1_INTEGER *ai);
-BIGNUM *ASN1_INTEGER_to_BN(ASN1_INTEGER *ai,BIGNUM *bn);
+long ASN1_INTEGER_get(const ASN1_INTEGER *a);
+ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai);
+BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai,BIGNUM *bn);
 
 int ASN1_ENUMERATED_set(ASN1_ENUMERATED *a, long v);
 long ASN1_ENUMERATED_get(ASN1_ENUMERATED *a);
diff --git a/crypto/asn1/asn1_lib.c b/crypto/asn1/asn1_lib.c
index bb94257cee..69ad869c97 100644
--- a/crypto/asn1/asn1_lib.c
+++ b/crypto/asn1/asn1_lib.c
@@ -340,7 +340,7 @@ int asn1_GetSequence(ASN1_const_CTX *c, long *length)
 	return(1);
 	}
 
-ASN1_STRING *ASN1_STRING_dup(ASN1_STRING *str)
+ASN1_STRING *ASN1_STRING_dup(const ASN1_STRING *str)
 	{
 	ASN1_STRING *ret;
 
@@ -423,7 +423,7 @@ void ASN1_STRING_free(ASN1_STRING *a)
 	OPENSSL_free(a);
 	}
 
-int ASN1_STRING_cmp(ASN1_STRING *a, ASN1_STRING *b)
+int ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b)
 	{
 	int i;
 
@@ -449,7 +449,7 @@ void asn1_add_error(const unsigned char *address, int offset)
 	ERR_add_error_data(4,"address=",buf1," offset=",buf2);
 	}
 
-int ASN1_STRING_length(ASN1_STRING *x)
+int ASN1_STRING_length(const ASN1_STRING *x)
 { return M_ASN1_STRING_length(x); }
 
 void ASN1_STRING_length_set(ASN1_STRING *x, int len)