Addenum to "Constify obj_dat.[ch]."

[openssl.git] / crypto / asn1 / asn1.h

diff --git a/crypto/asn1/asn1.h b/crypto/asn1/asn1.h
index bb8992c0634ad5a532e64efdbc35909bc896c434..1bf227d27f2b459dae70c7005f214eebcd0396f8 100644 (file)
--- a/crypto/asn1/asn1.h
+++ b/crypto/asn1/asn1.h
@@ -208,7 +208,7 @@ typedef struct asn1_object_st
        const char *sn,*ln;
        int nid;
        int length;
-       unsigned char *data;
+       const unsigned char *data;      /* data remains const after init */
        int flags;      /* Should we free this one */
        } ASN1_OBJECT;
 
@@ -329,6 +329,17 @@ typedef struct ASN1_VALUE_st ASN1_VALUE;
 #define I2D_OF(type) int (*)(type *,unsigned char **)
 #define I2D_OF_const(type) int (*)(const type *,unsigned char **)
 
+#define CHECKED_D2I_OF(type, d2i) \
+    ((d2i_of_void*) (1 ? d2i : ((D2I_OF(type))0)))
+#define CHECKED_I2D_OF(type, i2d) \
+    ((i2d_of_void*) (1 ? i2d : ((I2D_OF(type))0)))
+#define CHECKED_NEW_OF(type, xnew) \
+    ((void *(*)(void)) (1 ? xnew : ((type *(*)(void))0)))
+#define CHECKED_PTR_OF(type, p) \
+    ((void*) (1 ? p : (type*)0))
+#define CHECKED_PPTR_OF(type, p) \
+    ((void**) (1 ? p : (type**)0))
+
 #define TYPEDEF_D2I_OF(type) typedef type *d2i_of_##type(type **,const unsigned char **,long)
 #define TYPEDEF_I2D_OF(type) typedef int i2d_of_##type(type *,unsigned char **)
 #define TYPEDEF_D2I2D_OF(type) TYPEDEF_D2I_OF(type); TYPEDEF_I2D_OF(type)
@@ -765,6 +776,7 @@ DECLARE_ASN1_SET_OF(ASN1_OBJECT)
 
 ASN1_STRING *  ASN1_STRING_new(void);
 void           ASN1_STRING_free(ASN1_STRING *a);
+int            ASN1_STRING_copy(ASN1_STRING *dst, const ASN1_STRING *str);
 ASN1_STRING *  ASN1_STRING_dup(const ASN1_STRING *a);
 ASN1_STRING *  ASN1_STRING_type_new(int type );
 int            ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b);
@@ -913,23 +925,41 @@ int ASN1_object_size(int constructed, int length, int tag);
 
 /* Used to implement other functions */
 void *ASN1_dup(i2d_of_void *i2d, d2i_of_void *d2i, char *x);
+
 #define ASN1_dup_of(type,i2d,d2i,x) \
-       ((type *(*)(I2D_OF(type),D2I_OF(type),type *))openssl_fcast(ASN1_dup))(i2d,d2i,x)
+    ((type*)ASN1_dup(CHECKED_I2D_OF(type, i2d), \
+                    CHECKED_D2I_OF(type, d2i), \
+                    CHECKED_PTR_OF(type, x)))
+
 #define ASN1_dup_of_const(type,i2d,d2i,x) \
-       ((type *(*)(I2D_OF_const(type),D2I_OF(type),type *))openssl_fcast(ASN1_dup))(i2d,d2i,x)
+    ((type*)ASN1_dup(CHECKED_I2D_OF(const type, i2d), \
+                    CHECKED_D2I_OF(type, d2i), \
+                    CHECKED_PTR_OF(const type, x)))
 
 void *ASN1_item_dup(const ASN1_ITEM *it, void *x);
 
 #ifndef OPENSSL_NO_FP_API
 void *ASN1_d2i_fp(void *(*xnew)(void), d2i_of_void *d2i, FILE *in, void **x);
+
 #define ASN1_d2i_fp_of(type,xnew,d2i,in,x) \
-       ((type *(*)(type *(*)(void),D2I_OF(type),FILE *,type **))openssl_fcast(ASN1_d2i_fp))(xnew,d2i,in,x)
+    ((type*)ASN1_d2i_fp(CHECKED_NEW_OF(type, xnew), \
+                       CHECKED_D2I_OF(type, d2i), \
+                       in, \
+                       CHECKED_PPTR_OF(type, x)))
+
 void *ASN1_item_d2i_fp(const ASN1_ITEM *it, FILE *in, void *x);
 int ASN1_i2d_fp(i2d_of_void *i2d,FILE *out,void *x);
+
 #define ASN1_i2d_fp_of(type,i2d,out,x) \
-       ((int (*)(I2D_OF(type),FILE *,type *))openssl_fcast(ASN1_i2d_fp))(i2d,out,x)
+    (ASN1_i2d_fp(CHECKED_I2D_OF(type, i2d), \
+                out, \
+                CHECKED_PTR_OF(type, x)))
+
 #define ASN1_i2d_fp_of_const(type,i2d,out,x) \
-       ((int (*)(I2D_OF_const(type),FILE *,type *))openssl_fcast(ASN1_i2d_fp))(i2d,out,x)
+    (ASN1_i2d_fp(CHECKED_I2D_OF(const type, i2d), \
+                out, \
+                CHECKED_PTR_OF(const type, x)))
+
 int ASN1_item_i2d_fp(const ASN1_ITEM *it, FILE *out, void *x);
 int ASN1_STRING_print_ex_fp(FILE *fp, ASN1_STRING *str, unsigned long flags);
 #endif
@@ -938,14 +968,26 @@ int ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in);
 
 #ifndef OPENSSL_NO_BIO
 void *ASN1_d2i_bio(void *(*xnew)(void), d2i_of_void *d2i, BIO *in, void **x);
+
 #define ASN1_d2i_bio_of(type,xnew,d2i,in,x) \
-       ((type *(*)(type *(*)(void),D2I_OF(type),BIO *,type **))openssl_fcast(ASN1_d2i_bio))(xnew,d2i,in,x)
+    ((type*)ASN1_d2i_bio( CHECKED_NEW_OF(type, xnew), \
+                         CHECKED_D2I_OF(type, d2i), \
+                         in, \
+                         CHECKED_PPTR_OF(type, x)))
+
 void *ASN1_item_d2i_bio(const ASN1_ITEM *it, BIO *in, void *x);
 int ASN1_i2d_bio(i2d_of_void *i2d,BIO *out, unsigned char *x);
+
 #define ASN1_i2d_bio_of(type,i2d,out,x) \
-       ((int (*)(I2D_OF(type),BIO *,type *))openssl_fcast(ASN1_i2d_bio))(i2d,out,x)
+    (ASN1_i2d_bio(CHECKED_I2D_OF(type, i2d), \
+                 out, \
+                 CHECKED_PTR_OF(type, x)))
+
 #define ASN1_i2d_bio_of_const(type,i2d,out,x) \
-       ((int (*)(I2D_OF_const(type),BIO *,const type *))openssl_fcast(ASN1_i2d_bio))(i2d,out,x)
+    (ASN1_i2d_bio(CHECKED_I2D_OF(const type, i2d), \
+                 out, \
+                 CHECKED_PTR_OF(const type, x)))
+
 int ASN1_item_i2d_bio(const ASN1_ITEM *it, BIO *out, void *x);
 int ASN1_UTCTIME_print(BIO *fp, const ASN1_UTCTIME *a);
 int ASN1_GENERALIZEDTIME_print(BIO *fp, const ASN1_GENERALIZEDTIME *a);
@@ -982,8 +1024,12 @@ void *ASN1_unpack_string(ASN1_STRING *oct, d2i_of_void *d2i);
 void *ASN1_item_unpack(ASN1_STRING *oct, const ASN1_ITEM *it);
 ASN1_STRING *ASN1_pack_string(void *obj, i2d_of_void *i2d,
                              ASN1_OCTET_STRING **oct);
+
 #define ASN1_pack_string_of(type,obj,i2d,oct) \
-       ((ASN1_STRING *(*)(type *,I2D_OF(type),ASN1_OCTET_STRING **))openssl_fcast(ASN1_pack_string))(obj,i2d,oct)
+    (ASN1_pack_string(CHECKED_PTR_OF(type, obj), \
+                     CHECKED_I2D_OF(type, i2d), \
+                     oct))
+
 ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it, ASN1_OCTET_STRING **oct);
 
 void ASN1_STRING_set_default_mask(unsigned long mask);
@@ -1051,6 +1097,8 @@ void ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags);
 unsigned long ASN1_PCTX_get_str_flags(ASN1_PCTX *p);
 void ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags);
 
+BIO_METHOD *BIO_f_asn1(void);
+
 /* BEGIN ERROR CODES */
 /* The following lines are auto generated by the script mkerr.pl. Any changes
  * made after this point may be overwritten when the script is next run.