Add error checking to obj_xref.pl and add command line support for data
[openssl.git] / crypto / objects / o_names.c
index 3086b15161775f0bb610aac518db5d31e2dcd237..84380a96a98c71109ed821c522f4c500363f1a18 100644 (file)
@@ -2,42 +2,66 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <openssl/err.h>
 #include <openssl/lhash.h>
 #include <openssl/objects.h>
 #include <openssl/safestack.h>
+#include <openssl/e_os2.h>
+
+/* Later versions of DEC C has started to add lnkage information to certain
+ * functions, which makes it tricky to use them as values to regular function
+ * pointers.  One way is to define a macro that takes care of casting them
+ * correctly.
+ */
+#ifdef OPENSSL_SYS_VMS_DECC
+# define OPENSSL_strcmp (int (*)(const char *,const char *))strcmp
+#else
+# define OPENSSL_strcmp strcmp
+#endif
 
 /* I use the ex_data stuff to manage the identifiers for the obj_name_types
  * that applications may define.  I only really use the free function field.
  */
-static LHASH *names_lh=NULL;
+DECLARE_LHASH_OF(OBJ_NAME);
+static LHASH_OF(OBJ_NAME) *names_lh=NULL;
 static int names_type_num=OBJ_NAME_TYPE_NUM;
 
 typedef struct name_funcs_st
        {
-       unsigned long (*hash_func)();
-       int (*cmp_func)();
-       void (*free_func)();
+       unsigned long (*hash_func)(const char *name);
+       int (*cmp_func)(const char *a,const char *b);
+       void (*free_func)(const char *, int, const char *);
        } NAME_FUNCS;
 
 DECLARE_STACK_OF(NAME_FUNCS)
 IMPLEMENT_STACK_OF(NAME_FUNCS)
 
-STACK_OF(NAME_FUNCS) *name_funcs_stack;
+static STACK_OF(NAME_FUNCS) *name_funcs_stack;
+
+/* The LHASH callbacks now use the raw "void *" prototypes and do per-variable
+ * casting in the functions. This prevents function pointer casting without the
+ * need for macro-generated wrapper functions. */
 
-static unsigned long obj_name_hash(OBJ_NAME *a);
-static int obj_name_cmp(OBJ_NAME *a,OBJ_NAME *b);
+/* static unsigned long obj_name_hash(OBJ_NAME *a); */
+static unsigned long obj_name_hash(const void *a_void);
+/* static int obj_name_cmp(OBJ_NAME *a,OBJ_NAME *b); */
+static int obj_name_cmp(const void *a_void,const void *b_void);
+
+static IMPLEMENT_LHASH_HASH_FN(obj_name, OBJ_NAME)
+static IMPLEMENT_LHASH_COMP_FN(obj_name, OBJ_NAME)
 
 int OBJ_NAME_init(void)
        {
        if (names_lh != NULL) return(1);
        MemCheck_off();
-       names_lh=lh_new(obj_name_hash,obj_name_cmp);
+       names_lh=lh_OBJ_NAME_new();
        MemCheck_on();
        return(names_lh != NULL);
        }
 
-int OBJ_NAME_new_index(unsigned long (*hash_func)(), int (*cmp_func)(),
-            void (*free_func)())
+int OBJ_NAME_new_index(unsigned long (*hash_func)(const char *),
+       int (*cmp_func)(const char *, const char *),
+       void (*free_func)(const char *, int, const char *))
        {
        int ret;
        int i;
@@ -59,14 +83,21 @@ int OBJ_NAME_new_index(unsigned long (*hash_func)(), int (*cmp_func)(),
        for (i=sk_NAME_FUNCS_num(name_funcs_stack); i<names_type_num; i++)
                {
                MemCheck_off();
-               name_funcs = Malloc(sizeof(NAME_FUNCS));
+               name_funcs = OPENSSL_malloc(sizeof(NAME_FUNCS));
+               MemCheck_on();
+               if (!name_funcs)
+                       {
+                       OBJerr(OBJ_F_OBJ_NAME_NEW_INDEX,ERR_R_MALLOC_FAILURE);
+                       return(0);
+                       }
                name_funcs->hash_func = lh_strhash;
-               name_funcs->cmp_func = strcmp;
+               name_funcs->cmp_func = OPENSSL_strcmp;
                name_funcs->free_func = 0; /* NULL is often declared to
-                                           * ((void *)0), which according
-                                           * to Compaq C is not really
-                                           * compatible with a function
-                                           * pointer.  -- Richard Levitte*/
+                                               * ((void *)0), which according
+                                               * to Compaq C is not really
+                                               * compatible with a function
+                                               * pointer.      -- Richard Levitte*/
+               MemCheck_off();
                sk_NAME_FUNCS_push(name_funcs_stack,name_funcs);
                MemCheck_on();
                }
@@ -80,9 +111,12 @@ int OBJ_NAME_new_index(unsigned long (*hash_func)(), int (*cmp_func)(),
        return(ret);
        }
 
-static int obj_name_cmp(OBJ_NAME *a, OBJ_NAME *b)
+/* static int obj_name_cmp(OBJ_NAME *a, OBJ_NAME *b) */
+static int obj_name_cmp(const void *a_void, const void *b_void)
        {
        int ret;
+       const OBJ_NAME *a = (const OBJ_NAME *)a_void;
+       const OBJ_NAME *b = (const OBJ_NAME *)b_void;
 
        ret=a->type-b->type;
        if (ret == 0)
@@ -90,8 +124,8 @@ static int obj_name_cmp(OBJ_NAME *a, OBJ_NAME *b)
                if ((name_funcs_stack != NULL)
                        && (sk_NAME_FUNCS_num(name_funcs_stack) > a->type))
                        {
-                       ret=sk_NAME_FUNCS_value(name_funcs_stack,a->type)
-                               ->cmp_func(a->name,b->name);
+                       ret=sk_NAME_FUNCS_value(name_funcs_stack,
+                               a->type)->cmp_func(a->name,b->name);
                        }
                else
                        ret=strcmp(a->name,b->name);
@@ -99,14 +133,16 @@ static int obj_name_cmp(OBJ_NAME *a, OBJ_NAME *b)
        return(ret);
        }
 
-static unsigned long obj_name_hash(OBJ_NAME *a)
+/* static unsigned long obj_name_hash(OBJ_NAME *a) */
+static unsigned long obj_name_hash(const void *a_void)
        {
        unsigned long ret;
+       const OBJ_NAME *a = (const OBJ_NAME *)a_void;
 
        if ((name_funcs_stack != NULL) && (sk_NAME_FUNCS_num(name_funcs_stack) > a->type))
                {
-               ret=sk_NAME_FUNCS_value(name_funcs_stack,a->type)
-                       ->hash_func(a->name);
+               ret=sk_NAME_FUNCS_value(name_funcs_stack,
+                       a->type)->hash_func(a->name);
                }
        else
                {
@@ -131,8 +167,8 @@ const char *OBJ_NAME_get(const char *name, int type)
        on.type=type;
 
        for (;;)
-               {
-               ret=(OBJ_NAME *)lh_retrieve(names_lh,&on);
+       {
+               ret=lh_OBJ_NAME_retrieve(names_lh,&on);
                if (ret == NULL) return(NULL);
                if ((ret->alias) && !alias)
                        {
@@ -156,7 +192,7 @@ int OBJ_NAME_add(const char *name, int type, const char *data)
        alias=type&OBJ_NAME_ALIAS;
        type&= ~OBJ_NAME_ALIAS;
 
-       onp=(OBJ_NAME *)Malloc(sizeof(OBJ_NAME));
+       onp=(OBJ_NAME *)OPENSSL_malloc(sizeof(OBJ_NAME));
        if (onp == NULL)
                {
                /* ERROR */
@@ -168,7 +204,7 @@ int OBJ_NAME_add(const char *name, int type, const char *data)
        onp->type=type;
        onp->data=data;
 
-       ret=(OBJ_NAME *)lh_insert(names_lh,onp);
+       ret=lh_OBJ_NAME_insert(names_lh,onp);
        if (ret != NULL)
                {
                /* free things */
@@ -178,14 +214,14 @@ int OBJ_NAME_add(const char *name, int type, const char *data)
                         * function should get three arguments...
                         * -- Richard Levitte
                         */
-                       sk_NAME_FUNCS_value(name_funcs_stack,ret->type)
-                               ->free_func(ret->name,ret->type,ret->data);
+                       sk_NAME_FUNCS_value(name_funcs_stack,
+                               ret->type)->free_func(ret->name,ret->type,ret->data);
                        }
-               Free((char *)ret);
+               OPENSSL_free(ret);
                }
        else
                {
-               if (lh_error(names_lh))
+               if (lh_OBJ_NAME_error(names_lh))
                        {
                        /* ERROR */
                        return(0);
@@ -203,7 +239,7 @@ int OBJ_NAME_remove(const char *name, int type)
        type&= ~OBJ_NAME_ALIAS;
        on.name=name;
        on.type=type;
-       ret=(OBJ_NAME *)lh_delete(names_lh,&on);
+       ret=lh_OBJ_NAME_delete(names_lh,&on);
        if (ret != NULL)
                {
                /* free things */
@@ -213,32 +249,103 @@ int OBJ_NAME_remove(const char *name, int type)
                         * function should get three arguments...
                         * -- Richard Levitte
                         */
-                       sk_NAME_FUNCS_value(name_funcs_stack,ret->type)
-                               ->free_func(ret->name,ret->type,ret->data);
+                       sk_NAME_FUNCS_value(name_funcs_stack,
+                               ret->type)->free_func(ret->name,ret->type,ret->data);
                        }
-               Free((char *)ret);
+               OPENSSL_free(ret);
                return(1);
                }
        else
                return(0);
        }
 
+struct doall
+       {
+       int type;
+       void (*fn)(const OBJ_NAME *,void *arg);
+       void *arg;
+       };
+
+static void do_all_fn_doall_arg(const OBJ_NAME *name,struct doall *d)
+       {
+       if(name->type == d->type)
+               d->fn(name,d->arg);
+       }
+
+static IMPLEMENT_LHASH_DOALL_ARG_FN(do_all_fn, const OBJ_NAME, struct doall)
+
+void OBJ_NAME_do_all(int type,void (*fn)(const OBJ_NAME *,void *arg),void *arg)
+       {
+       struct doall d;
+
+       d.type=type;
+       d.fn=fn;
+       d.arg=arg;
+
+       lh_OBJ_NAME_doall_arg(names_lh, LHASH_DOALL_ARG_FN(do_all_fn),
+                             struct doall, &d);
+       }
+
+struct doall_sorted
+       {
+       int type;
+       int n;
+       const OBJ_NAME **names;
+       };
+
+static void do_all_sorted_fn(const OBJ_NAME *name,void *d_)
+       {
+       struct doall_sorted *d=d_;
+
+       if(name->type != d->type)
+               return;
+
+       d->names[d->n++]=name;
+       }
+
+static int do_all_sorted_cmp(const void *n1_,const void *n2_)
+       {
+       const OBJ_NAME * const *n1=n1_;
+       const OBJ_NAME * const *n2=n2_;
+
+       return strcmp((*n1)->name,(*n2)->name);
+       }
+
+void OBJ_NAME_do_all_sorted(int type,void (*fn)(const OBJ_NAME *,void *arg),
+                               void *arg)
+       {
+       struct doall_sorted d;
+       int n;
+
+       d.type=type;
+       d.names=OPENSSL_malloc(lh_OBJ_NAME_num_items(names_lh)*sizeof *d.names);
+       d.n=0;
+       OBJ_NAME_do_all(type,do_all_sorted_fn,&d);
+
+       qsort((void *)d.names,d.n,sizeof *d.names,do_all_sorted_cmp);
+
+       for(n=0 ; n < d.n ; ++n)
+               fn(d.names[n],arg);
+
+       OPENSSL_free((void *)d.names);
+       }
+
 static int free_type;
 
-static void names_lh_free(OBJ_NAME *onp, int type)
-{
-       if(onp == NULL)
-           return;
+static void names_lh_free_doall(OBJ_NAME *onp)
+       {
+       if (onp == NULL)
+               return;
 
-       if ((free_type < 0) || (free_type == onp->type))
-               {
+       if (free_type < 0 || free_type == onp->type)
                OBJ_NAME_remove(onp->name,onp->type);
-               }
        }
 
+static IMPLEMENT_LHASH_DOALL_FN(names_lh_free, OBJ_NAME)
+
 static void name_funcs_free(NAME_FUNCS *ptr)
        {
-       Free(ptr);
+       OPENSSL_free(ptr);
        }
 
 void OBJ_NAME_cleanup(int type)
@@ -248,18 +355,18 @@ void OBJ_NAME_cleanup(int type)
        if (names_lh == NULL) return;
 
        free_type=type;
-       down_load=names_lh->down_load;
-       names_lh->down_load=0;
+       down_load=lh_OBJ_NAME_down_load(names_lh);
+       lh_OBJ_NAME_down_load(names_lh)=0;
 
-       lh_doall(names_lh,names_lh_free);
+       lh_OBJ_NAME_doall(names_lh,LHASH_DOALL_FN(names_lh_free));
        if (type < 0)
                {
-               lh_free(names_lh);
+               lh_OBJ_NAME_free(names_lh);
                sk_NAME_FUNCS_pop_free(name_funcs_stack,name_funcs_free);
                names_lh=NULL;
                name_funcs_stack = NULL;
                }
        else
-               names_lh->down_load=down_load;
+               lh_OBJ_NAME_down_load(names_lh)=down_load;
        }