1 files changed, 243 insertions, 0 deletions

diff --git a/src/lib/libcrypto/objects/o_names.c b/src/lib/libcrypto/objects/o_names.c
new file mode 100644
index 0000000000..4da5e45b9c
--- /dev/null
+++ b/src/lib/libcrypto/objects/o_names.c
@@ -0,0 +1,243 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <openssl/lhash.h>
+#include <openssl/objects.h>
+
+/* 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;
+static int names_type_num=OBJ_NAME_TYPE_NUM;
+static STACK *names_cmp=NULL;
+static STACK *names_hash=NULL;
+static STACK *names_free=NULL;
+
+static unsigned long obj_name_hash(OBJ_NAME *a);
+static int obj_name_cmp(OBJ_NAME *a,OBJ_NAME *b);
+
+int OBJ_NAME_init(void)
+        {
+        if (names_lh != NULL) return(1);
+        MemCheck_off();
+        names_lh=lh_new(obj_name_hash,obj_name_cmp);
+        MemCheck_on();
+        return(names_lh != NULL);
+        }
+
+int OBJ_NAME_new_index(unsigned long (*hash_func)(), int (*cmp_func)(),
+             void (*free_func)())
+        {
+        int ret;
+        int i;
+
+        if (names_free == NULL)
+                {
+                MemCheck_off();
+                names_hash=sk_new_null();
+                names_cmp=sk_new_null();
+                names_free=sk_new_null();
+                MemCheck_on();
+                }
+        if ((names_free == NULL) || (names_hash == NULL) || (names_cmp == NULL))
+                {
+                /* ERROR */
+                return(0);
+                }
+        ret=names_type_num;
+        names_type_num++;
+        for (i=sk_num(names_free); i<names_type_num; i++)
+                {
+                MemCheck_off();
+                sk_push(names_hash,(char *)strcmp);
+                sk_push(names_cmp,(char *)lh_strhash);
+                sk_push(names_free,NULL);
+                MemCheck_on();
+                }
+        if (hash_func != NULL)
+                sk_set(names_hash,ret,(char *)hash_func);
+        if (cmp_func != NULL)
+                sk_set(names_cmp,ret,(char *)cmp_func);
+        if (free_func != NULL)
+                sk_set(names_free,ret,(char *)free_func);
+        return(ret);
+        }
+
+static int obj_name_cmp(OBJ_NAME *a, OBJ_NAME *b)
+        {
+        int ret;
+        int (*cmp)();
+
+        ret=a->type-b->type;
+        if (ret == 0)
+                {
+                if ((names_cmp != NULL) && (sk_num(names_cmp) > a->type))
+                        {
+                        cmp=(int (*)())sk_value(names_cmp,a->type);
+                        ret=cmp(a->name,b->name);
+                        }
+                else
+                        ret=strcmp(a->name,b->name);
+                }
+        return(ret);
+        }
+
+static unsigned long obj_name_hash(OBJ_NAME *a)
+        {
+        unsigned long ret;
+        unsigned long (*hash)();
+
+        if ((names_hash != NULL) && (sk_num(names_hash) > a->type))
+                {
+                hash=(unsigned long (*)())sk_value(names_hash,a->type);
+                ret=hash(a->name);
+                }
+        else
+                {
+                ret=lh_strhash(a->name);
+                }
+        ret^=a->type;
+        return(ret);
+        }
+
+const char *OBJ_NAME_get(const char *name, int type)
+        {
+        OBJ_NAME on,*ret;
+        int num=0,alias;
+
+        if (name == NULL) return(NULL);
+        if ((names_lh == NULL) && !OBJ_NAME_init()) return(NULL);
+
+        alias=type&OBJ_NAME_ALIAS;
+        type&= ~OBJ_NAME_ALIAS;
+
+        on.name=name;
+        on.type=type;
+
+        for (;;)
+                {
+                ret=(OBJ_NAME *)lh_retrieve(names_lh,(char *)&on);
+                if (ret == NULL) return(NULL);
+                if ((ret->alias) && !alias)
+                        {
+                        if (++num > 10) return(NULL);
+                        on.name=ret->data;
+                        }
+                else
+                        {
+                        return(ret->data);
+                        }
+                }
+        }
+
+int OBJ_NAME_add(const char *name, int type, const char *data)
+        {
+        void (*f)();
+        OBJ_NAME *onp,*ret;
+        int alias;
+
+        if ((names_lh == NULL) && !OBJ_NAME_init()) return(0);
+
+        alias=type&OBJ_NAME_ALIAS;
+        type&= ~OBJ_NAME_ALIAS;
+
+        onp=(OBJ_NAME *)Malloc(sizeof(OBJ_NAME));
+        if (onp == NULL)
+                {
+                /* ERROR */
+                return(0);
+                }
+
+        onp->name=name;
+        onp->alias=alias;
+        onp->type=type;
+        onp->data=data;
+
+        ret=(OBJ_NAME *)lh_insert(names_lh,(char *)onp);
+        if (ret != NULL)
+                {
+                /* free things */
+                if ((names_free != NULL) && (sk_num(names_free) > ret->type))
+                        {
+                        f=(void (*)())sk_value(names_free,ret->type);
+                        f(ret->name,ret->type,ret->data);
+                        }
+                Free((char *)ret);
+                }
+        else
+                {
+                if (lh_error(names_lh))
+                        {
+                        /* ERROR */
+                        return(0);
+                        }
+                }
+        return(1);
+        }
+
+int OBJ_NAME_remove(const char *name, int type)
+        {
+        OBJ_NAME on,*ret;
+        void (*f)();
+
+        if (names_lh == NULL) return(0);
+
+        type&= ~OBJ_NAME_ALIAS;
+        on.name=name;
+        on.type=type;
+        ret=(OBJ_NAME *)lh_delete(names_lh,(char *)&on);
+        if (ret != NULL)
+                {
+                /* free things */
+                if ((names_free != NULL) && (sk_num(names_free) > type))
+                        {
+                        f=(void (*)())sk_value(names_free,type);
+                        f(ret->name,ret->type,ret->data);
+                        }
+                Free((char *)ret);
+                return(1);
+                }
+        else
+                return(0);
+        }
+
+static int free_type;
+
+static void names_lh_free(OBJ_NAME *onp, int type)
+{
+        if(onp == NULL)
+            return;
+
+        if ((free_type < 0) || (free_type == onp->type))
+                {
+                OBJ_NAME_remove(onp->name,onp->type);
+                }
+        }
+
+void OBJ_NAME_cleanup(int type)
+        {
+        unsigned long down_load;
+
+        if (names_lh == NULL) return;
+
+        free_type=type;
+        down_load=names_lh->down_load;
+        names_lh->down_load=0;
+
+        lh_doall(names_lh,names_lh_free);
+        if (type < 0)
+                {
+                lh_free(names_lh);
+                sk_free(names_hash);
+                sk_free(names_cmp);
+                sk_free(names_free);
+                names_lh=NULL;
+                names_hash=NULL;
+                names_cmp=NULL;
+                names_free=NULL;
+                }
+        else
+                names_lh->down_load=down_load;
+        }
+