Delete bundled copy of NSS and replace with README.

nss/lib/libpkix/pkix/util/pkix_list.c

Index: nss/lib/libpkix/pkix/util/pkix_list.c
diff --git a/nss/lib/libpkix/pkix/util/pkix_list.c b/nss/lib/libpkix/pkix/util/pkix_list.c
deleted file mode 100755
index d02b66e6d68c91c12a6859a4ba8041ffd76a8101..0000000000000000000000000000000000000000
--- a/nss/lib/libpkix/pkix/util/pkix_list.c
+++ /dev/null
@@ -1,1701 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/*
- * pkix_list.c
- *
- * List Object Functions
- *
- */
-
-#include "pkix_list.h"
-
-/* --Private-Functions-------------------------------------------- */
-
-/*
- * FUNCTION: pkix_List_Create_Internal
- * DESCRIPTION:
- *
- *  Creates a new List, using the Boolean value of "isHeader" to determine
- *  whether the new List should be a header, and stores it at "pList". The
- *  List is initially empty and holds no items. To initially add items to
- *  the List, use PKIX_List_AppendItem.
- *
- * PARAMETERS:
- *  "isHeader"
- *      Boolean value indicating whether new List should be a header.
- *  "pList"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-static PKIX_Error *
-pkix_List_Create_Internal(
-        PKIX_Boolean isHeader,
-        PKIX_List **pList,
-        void *plContext)
-{
-        PKIX_List *list = NULL;
-
-        PKIX_ENTER(LIST, "pkix_List_Create_Internal");
-        PKIX_NULLCHECK_ONE(pList);
-
-        PKIX_CHECK(PKIX_PL_Object_Alloc
-                    (PKIX_LIST_TYPE,
-                    ((PKIX_UInt32)(sizeof (PKIX_List))),
-                    (PKIX_PL_Object **)&list, plContext),
-                    PKIX_ERRORCREATINGLISTITEM);
-
-        list->item = NULL;
-        list->next = NULL;
-        list->immutable = PKIX_FALSE;
-        list->length = 0;
-        list->isHeader = isHeader;
-
-        *pList = list;
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_Destroy
- * (see comments for PKIX_PL_DestructorCallback in pkix_pl_system.h)
- */
-static PKIX_Error *
-pkix_List_Destroy(
-        PKIX_PL_Object *object,
-        void *plContext)
-{
-        PKIX_List *list = NULL;
-        PKIX_List *nextItem = NULL;
-
-        PKIX_ENTER(LIST, "pkix_List_Destroy");
-        PKIX_NULLCHECK_ONE(object);
-
-        /* Check that this object is a list */
-        PKIX_CHECK(pkix_CheckType(object, PKIX_LIST_TYPE, plContext),
-                    PKIX_OBJECTNOTLIST);
-
-        list = (PKIX_List *)object;
-
-        /* We have a valid list. DecRef its item and recurse on next */
-        PKIX_DECREF(list->item);
-        while ((nextItem = list->next) != NULL) {
-            list->next = nextItem->next;
-            nextItem->next = NULL;
-            PKIX_DECREF(nextItem);
-        }      
-        list->immutable = PKIX_FALSE;
-        list->length = 0;
-        list->isHeader = PKIX_FALSE;
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_ToString_Helper
- * DESCRIPTION:
- *
- *  Helper function that creates a string representation of the List pointed
- *  to by "list" and stores its address in the object pointed to by "pString".
- *
- * PARAMETERS
- *  "list"
- *      Address of List whose string representation is desired.
- *      Must be non-NULL.
- *  "pString"
- *      Address of object pointer's destination. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Conditionally Thread Safe
- *      (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a List Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-static PKIX_Error *
-pkix_List_ToString_Helper(
-        PKIX_List *list,
-        PKIX_PL_String **pString,
-        void *plContext)
-{
-        PKIX_PL_String *itemString = NULL;
-        PKIX_PL_String *nextString = NULL;
-        PKIX_PL_String *format = NULL;
-        PKIX_Boolean empty;
-
-        PKIX_ENTER(LIST, "pkix_List_ToString_Helper");
-        PKIX_NULLCHECK_TWO(list, pString);
-
-        /* special case when list is the header */
-        if (list->isHeader){
-
-                PKIX_CHECK(PKIX_List_IsEmpty(list, &empty, plContext),
-                            PKIX_LISTISEMPTYFAILED);
-
-                if (empty){
-                        PKIX_CHECK(PKIX_PL_String_Create
-                                    (PKIX_ESCASCII,
-                                    "EMPTY",
-                                    0,
-                                    &itemString,
-                                    plContext),
-                                    PKIX_ERRORCREATINGITEMSTRING);
-                        (*pString) = itemString;
-                        PKIX_DEBUG_EXIT(LIST);
-                        return (NULL);
-                } else {
-                        PKIX_CHECK(pkix_List_ToString_Helper
-                                    (list->next, &itemString, plContext),
-                                    PKIX_LISTTOSTRINGHELPERFAILED);
-                }
-
-                /* Create a string object from the format */
-                PKIX_CHECK(PKIX_PL_String_Create
-                            (PKIX_ESCASCII, "%s", 0, &format, plContext),
-                            PKIX_STRINGCREATEFAILED);
-
-                PKIX_CHECK(PKIX_PL_Sprintf
-                            (pString, plContext, format, itemString),
-                            PKIX_SPRINTFFAILED);
-        } else {
-                /* Get a string for this list's item */
-                if (list->item == NULL) {
-                        PKIX_CHECK(PKIX_PL_String_Create
-                                    (PKIX_ESCASCII,
-                                    "(null)",
-                                    0,
-                                    &itemString,
-                                    plContext),
-                                    PKIX_STRINGCREATEFAILED);
-                } else {
-                        PKIX_CHECK(PKIX_PL_Object_ToString
-                                    ((PKIX_PL_Object*)list->item,
-                                    &itemString,
-                                    plContext),
-                                    PKIX_OBJECTTOSTRINGFAILED);
-                }
-                if (list->next == NULL) {
-                        /* Just return the itemstring */
-                        (*pString) = itemString;
-                        PKIX_DEBUG_EXIT(LIST);
-                        return (NULL);
-                }
-
-                /* Recursive call to get string for this list's next pointer */
-                PKIX_CHECK(pkix_List_ToString_Helper
-                            (list->next, &nextString, plContext),
-                            PKIX_LISTTOSTRINGHELPERFAILED);
-
-                /* Create a string object from the format */
-                PKIX_CHECK(PKIX_PL_String_Create
-                            (PKIX_ESCASCII,
-                            "%s, %s",
-                            0,
-                            &format,
-                            plContext),
-                            PKIX_STRINGCREATEFAILED);
-
-                PKIX_CHECK(PKIX_PL_Sprintf
-                            (pString,
-                            plContext,
-                            format,
-                            itemString,
-                            nextString),
-                            PKIX_SPRINTFFAILED);
-        }
-
-cleanup:
-
-        PKIX_DECREF(itemString);
-        PKIX_DECREF(nextString);
-        PKIX_DECREF(format);
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_ToString
- * (see comments for PKIX_PL_ToStringCallback in pkix_pl_system.h)
- */
-static PKIX_Error *
-pkix_List_ToString(
-        PKIX_PL_Object *object,
-        PKIX_PL_String **pString,
-        void *plContext)
-{
-        PKIX_List *list = NULL;
-        PKIX_PL_String *listString = NULL;
-        PKIX_PL_String *format = NULL;
-
-        PKIX_ENTER(LIST, "pkix_List_ToString");
-        PKIX_NULLCHECK_TWO(object, pString);
-
-        PKIX_CHECK(pkix_CheckType(object, PKIX_LIST_TYPE, plContext),
-                    PKIX_OBJECTNOTLIST);
-
-        list = (PKIX_List *)object;
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        PKIX_CHECK(pkix_List_ToString_Helper(list, &listString, plContext),
-                    PKIX_LISTTOSTRINGHELPERFAILED);
-
-        PKIX_CHECK(PKIX_PL_String_Create
-                    (PKIX_ESCASCII, "(%s)", 0, &format, plContext),
-                    PKIX_STRINGCREATEFAILED);
-
-        PKIX_CHECK(PKIX_PL_Sprintf(pString, plContext, format, listString),
-                    PKIX_SPRINTFFAILED);
-
-cleanup:
-
-        PKIX_DECREF(listString);
-        PKIX_DECREF(format);
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_Equals
- * (see comments for PKIX_PL_EqualsCallback in pkix_pl_system.h)
- */
-static PKIX_Error *
-pkix_List_Equals(
-        PKIX_PL_Object *first,
-        PKIX_PL_Object *second,
-        PKIX_Boolean *pResult,
-        void *plContext)
-{
-        PKIX_UInt32 secondType;
-        PKIX_Boolean cmpResult;
-        PKIX_List *firstList = NULL;
-        PKIX_List *secondList = NULL;
-        PKIX_UInt32 firstLength = 0;
-        PKIX_UInt32 secondLength = 0;
-        PKIX_PL_Object *firstItem = NULL;
-        PKIX_PL_Object *secondItem = NULL;
-        PKIX_UInt32 i = 0;
-
-        PKIX_ENTER(LIST, "pkix_List_Equals");
-        PKIX_NULLCHECK_THREE(first, second, pResult);
-
-        /* test that first is a List */
-        PKIX_CHECK(pkix_CheckType(first, PKIX_LIST_TYPE, plContext),
-                PKIX_FIRSTOBJECTNOTLIST);
-
-        /*
-         * Since we know first is a List, if both references are
-         * identical, they must be equal
-         */
-        if (first == second){
-                *pResult = PKIX_TRUE;
-                goto cleanup;
-        }
-
-        /*
-         * If second isn't a List, we don't throw an error.
-         * We simply return a Boolean result of FALSE
-         */
-        *pResult = PKIX_FALSE;
-        PKIX_CHECK(PKIX_PL_Object_GetType(second, &secondType, plContext),
-                    PKIX_COULDNOTGETTYPEOFSECONDARGUMENT);
-        if (secondType != PKIX_LIST_TYPE) goto cleanup;
-
-        firstList = (PKIX_List *)first;
-        secondList = (PKIX_List *)second;
-
-        if ((!firstList->isHeader) && (!secondList->isHeader)){
-                PKIX_ERROR(PKIX_INPUTLISTSMUSTBELISTHEADERS);
-        }
-
-        firstLength = firstList->length;
-        secondLength = secondList->length;
-
-        cmpResult = PKIX_FALSE;
-        if (firstLength == secondLength){
-                for (i = 0, cmpResult = PKIX_TRUE;
-                    ((i < firstLength) && cmpResult);
-                    i++){
-                        PKIX_CHECK(PKIX_List_GetItem
-                                    (firstList, i, &firstItem, plContext),
-                                    PKIX_LISTGETITEMFAILED);
-
-                        PKIX_CHECK(PKIX_List_GetItem
-                                    (secondList, i, &secondItem, plContext),
-                                    PKIX_LISTGETITEMFAILED);
-
-                        if ((!firstItem && secondItem) ||
-                            (firstItem && !secondItem)){
-                                        cmpResult = PKIX_FALSE;
-                        } else if (!firstItem && !secondItem){
-                                continue;
-                        } else {
-                                PKIX_CHECK(PKIX_PL_Object_Equals
-                                            (firstItem,
-                                            secondItem,
-                                            &cmpResult,
-                                            plContext),
-                                            PKIX_OBJECTEQUALSFAILED);
-
-                                PKIX_DECREF(firstItem);
-                                PKIX_DECREF(secondItem);
-                        }
-                }
-        }
-
-        *pResult = cmpResult;
-
-cleanup:
-
-        PKIX_DECREF(firstItem);
-        PKIX_DECREF(secondItem);
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_Hashcode
- * (see comments for PKIX_PL_HashcodeCallback in pkix_pl_system.h)
- */
-static PKIX_Error *
-pkix_List_Hashcode(
-        PKIX_PL_Object *object,
-        PKIX_UInt32 *pHashcode,
-        void *plContext)
-{
-        PKIX_List *list = NULL;
-        PKIX_PL_Object *element = NULL;
-        PKIX_UInt32 hash = 0;
-        PKIX_UInt32 tempHash = 0;
-        PKIX_UInt32 length, i;
-
-        PKIX_ENTER(LIST, "pkix_List_Hashcode");
-        PKIX_NULLCHECK_TWO(object, pHashcode);
-
-        PKIX_CHECK(pkix_CheckType(object, PKIX_LIST_TYPE, plContext),
-                    PKIX_OBJECTNOTLIST);
-
-        list = (PKIX_List *)object;
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        length = list->length;
-
-        for (i = 0; i < length; i++){
-                PKIX_CHECK(PKIX_List_GetItem(list, i, &element, plContext),
-                            PKIX_LISTGETITEMFAILED);
-
-                if (!element){
-                        tempHash = 100;
-                } else {
-                        PKIX_CHECK(PKIX_PL_Object_Hashcode
-                                    (element, &tempHash, plContext),
-                                    PKIX_LISTHASHCODEFAILED);
-                }
-
-                hash = 31 * hash + tempHash;
-
-                PKIX_DECREF(element);
-        }
-
-        *pHashcode = hash;
-
-cleanup:
-
-        PKIX_DECREF(element);
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_Duplicate
- * (see comments for PKIX_PL_DuplicateCallback in pkix_pl_system.h)
- */
-static PKIX_Error *
-pkix_List_Duplicate(
-        PKIX_PL_Object *object,
-        PKIX_PL_Object **pNewObject,
-        void *plContext)
-{
-        PKIX_List *list = NULL;
-        PKIX_List *listDuplicate = NULL;
-
-        PKIX_ENTER(LIST, "pkix_List_Duplicate");
-        PKIX_NULLCHECK_TWO(object, pNewObject);
-
-        PKIX_CHECK(pkix_CheckType(object, PKIX_LIST_TYPE, plContext),
-                    PKIX_OBJECTNOTLIST);
-
-        list = (PKIX_List *)object;
-
-        if (list->immutable){
-                PKIX_CHECK(pkix_duplicateImmutable
-                            (object, pNewObject, plContext),
-                            PKIX_DUPLICATEIMMUTABLEFAILED);
-        } else {
-
-                PKIX_CHECK(pkix_List_Create_Internal
-                            (list->isHeader, &listDuplicate, plContext),
-                            PKIX_LISTCREATEINTERNALFAILED);
-
-                listDuplicate->length = list->length;
-
-                PKIX_INCREF(list->item);
-                listDuplicate->item = list->item;
-
-                if (list->next == NULL){
-                        listDuplicate->next = NULL;
-                } else {
-                        /* Recursively Duplicate list */
-                        PKIX_CHECK(pkix_List_Duplicate
-                                    ((PKIX_PL_Object *)list->next,
-                                    (PKIX_PL_Object **)&listDuplicate->next,
-                                    plContext),
-                                    PKIX_LISTDUPLICATEFAILED);
-                }
-
-                *pNewObject = (PKIX_PL_Object *)listDuplicate;
-        }
-
-cleanup:
-
-        if (PKIX_ERROR_RECEIVED){
-                PKIX_DECREF(listDuplicate);
-        }
-
-        PKIX_RETURN(LIST);
-}
-
-
-/*
- * FUNCTION: pkix_List_GetElement
- * DESCRIPTION:
- *
- *  Copies the "list"'s element at "index" into "element". The input List must
- *  be the header of the List (as opposed to being an element of the List). The
- *  index counts from zero and must be less than the List's length. This
- *  function does NOT increment the reference count of the List element since
- *  the returned element's reference will not be stored by the calling
- *  function.
- *
- * PARAMETERS:
- *  "list"
- *      Address of List (must be header) to get element from. Must be non-NULL.
- *  "index"
- *      Index of list to get element from. Must be less than List's length.
- *  "pElement"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Conditionally Thread Safe
- *      (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-static PKIX_Error *
-pkix_List_GetElement(
-        PKIX_List *list,
-        PKIX_UInt32 index,
-        PKIX_List **pElement,
-        void *plContext)
-{
-        PKIX_List *iterator = NULL;
-        PKIX_UInt32 length;
-        PKIX_UInt32 position = 0;
-
-        PKIX_ENTER(LIST, "pkix_List_GetElement");
-        PKIX_NULLCHECK_TWO(list, pElement);
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        length = list->length;
-
-        if (index >= length) {
-                PKIX_ERROR(PKIX_INDEXOUTOFBOUNDS);
-        }
-
-        for (iterator = list; position++ <= index; iterator = iterator->next)
-                ;
-
-        (*pElement) = iterator;
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-
-/*
- * FUNCTION: pkix_List_RegisterSelf
- * DESCRIPTION:
- *  Registers PKIX_LIST_TYPE and its related functions with systemClasses[]
- * THREAD SAFETY:
- *  Not Thread Safe - for performance and complexity reasons
- *
- *  Since this function is only called by PKIX_PL_Initialize, which should
- *  only be called once, it is acceptable that this function is not
- *  thread-safe.
- */
-PKIX_Error *
-pkix_List_RegisterSelf(void *plContext)
-{
-        extern pkix_ClassTable_Entry systemClasses[PKIX_NUMTYPES];
-        pkix_ClassTable_Entry entry;
-
-        PKIX_ENTER(LIST, "pkix_List_RegisterSelf");
-
-        entry.description = "List";
-        entry.objCounter = 0;
-        entry.typeObjectSize = sizeof(PKIX_List);
-        entry.destructor = pkix_List_Destroy;
-        entry.equalsFunction = pkix_List_Equals;
-        entry.hashcodeFunction = pkix_List_Hashcode;
-        entry.toStringFunction = pkix_List_ToString;
-        entry.comparator = NULL;
-        entry.duplicateFunction = pkix_List_Duplicate;
-
-        systemClasses[PKIX_LIST_TYPE] = entry;
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_Contains
- * DESCRIPTION:
- *
- *  Checks a List pointed to by "list", to determine whether it includes
- *  an entry that is equal to the Object pointed to by "object", and stores
- *  the result in "pFound".
- *
- * PARAMETERS:
- *  "list"
- *      List to be searched; may be empty; must be non-NULL
- *  "object"
- *      Object to be checked for; must be non-NULL
- *  "pFound"
- *      Address where the result of the search will be stored. Must
- *      be non-NULL
- *  "plContext"
- *      platform-specific context pointer
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds
- *  Returns a Fatal Error if the function fails in an unrecoverable way
- */
-PKIX_Error *
-pkix_List_Contains(
-        PKIX_List *list,
-        PKIX_PL_Object *object,
-        PKIX_Boolean *pFound,
-        void *plContext)
-{
-        PKIX_PL_Object *current = NULL;
-        PKIX_UInt32 numEntries = 0;
-        PKIX_UInt32 index = 0;
-        PKIX_Boolean match = PKIX_FALSE;
-
-        PKIX_ENTER(LIST, "pkix_List_Contains");
-        PKIX_NULLCHECK_THREE(list, object, pFound);
-
-        PKIX_CHECK(PKIX_List_GetLength(list, &numEntries, plContext),
-                PKIX_LISTGETLENGTHFAILED);
-
-        for (index = 0; index < numEntries; index++) {
-                PKIX_CHECK(PKIX_List_GetItem
-                        (list, index, &current, plContext),
-                        PKIX_LISTGETITEMFAILED);
-
-                if (current) {
-                        PKIX_CHECK(PKIX_PL_Object_Equals
-                                (object, current, &match, plContext),
-                                PKIX_OBJECTEQUALSFAILED);
-
-                        PKIX_DECREF(current);
-                }
-
-                if (match) {
-                        break;
-                }
-        }
-
-        *pFound = match;
-
-cleanup:
-
-        PKIX_DECREF(current);
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_Remove
- * DESCRIPTION:
- *
- *  Traverses the List pointed to by "list", to find and delete an entry
- *  that is equal to the Object pointed to by "object". If no such entry
- *  is found the function does not return an error.
- *
- * PARAMETERS:
- *  "list"
- *      List to be searched; may be empty; must be non-NULL
- *  "object"
- *      Object to be checked for and deleted, if found; must be non-NULL
- *  "plContext"
- *      platform-specific context pointer
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds
- *  Returns a Validate Error if the functions fails in a non-fatal way
- *  Returns a Fatal Error if the function fails in an unrecoverable way
- */
-PKIX_Error *
-pkix_List_Remove(
-        PKIX_List *list,
-        PKIX_PL_Object *object,
-        void *plContext)
-{
-        PKIX_PL_Object *current = NULL;
-        PKIX_UInt32 numEntries = 0;
-        PKIX_UInt32 index = 0;
-        PKIX_Boolean match = PKIX_FALSE;
-
-        PKIX_ENTER(LIST, "pkix_List_Remove");
-        PKIX_NULLCHECK_TWO(list, object);
-
-        PKIX_CHECK(PKIX_List_GetLength(list, &numEntries, plContext),
-                PKIX_LISTGETLENGTHFAILED);
-
-        for (index = 0; index < numEntries; index++) {
-                PKIX_CHECK(PKIX_List_GetItem
-                        (list, index, &current, plContext),
-                        PKIX_LISTGETITEMFAILED);
-
-                if (current) {
-                        PKIX_CHECK(PKIX_PL_Object_Equals
-                                (object, current, &match, plContext),
-                                PKIX_OBJECTEQUALSFAILED);
-
-                        PKIX_DECREF(current);
-                }
-
-                if (match) {
-                        PKIX_CHECK(PKIX_List_DeleteItem
-                                (list, index, plContext),
-                                PKIX_LISTDELETEITEMFAILED);
-                        break;
-                }
-        }
-
-cleanup:
-
-        PKIX_DECREF(current);
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_RemoveItems
- * DESCRIPTION:
- *
- *  Traverses the List pointed to by "list", to find and delete an entry
- *  that is equal to the Object in the "deleteList". If no such entry
- *  is found the function does not return an error.
- *
- * PARAMETERS:
- *  "list"
- *      Object in "list" is checked for object in "deleteList" and deleted if
- *      found; may be empty; must be non-NULL
- *  "deleteList"
- *      List of objects to be searched ; may be empty; must be non-NULL
- *  "plContext"
- *      platform-specific context pointer
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds
- *  Returns a Validate Error if the functions fails in a non-fatal way
- *  Returns a Fatal Error if the function fails in an unrecoverable way
- */
-PKIX_Error *
-pkix_List_RemoveItems(
-        PKIX_List *list,
-        PKIX_List *deleteList,
-        void *plContext)
-{
-        PKIX_PL_Object *current = NULL;
-        PKIX_UInt32 numEntries = 0;
-        PKIX_UInt32 index = 0;
-
-        PKIX_ENTER(LIST, "pkix_List_RemoveItems");
-        PKIX_NULLCHECK_TWO(list, deleteList);
-
-        PKIX_CHECK(PKIX_List_GetLength(deleteList, &numEntries, plContext),
-                PKIX_LISTGETLENGTHFAILED);
-
-        for (index = 0; index < numEntries; index++) {
-                PKIX_CHECK(PKIX_List_GetItem
-                        (deleteList, index, &current, plContext),
-                        PKIX_LISTGETITEMFAILED);
-
-                if (current) {
-                        PKIX_CHECK(pkix_List_Remove
-                                (list, current, plContext),
-                                PKIX_OBJECTEQUALSFAILED);
-
-                        PKIX_DECREF(current);
-                }
-        }
-
-cleanup:
-
-        PKIX_DECREF(current);
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_MergeLists
- * DESCRIPTION:
- *
- *  Creates a new list consisting of the items from "firstList", followed by
- *  the items on "secondList", returns the new list at "pMergedList". If
- *  both input lists are NULL or empty, the result is an empty list. If an error
- *  occurs, the result is NULL.
- *
- * PARAMETERS:
- *  "firstList"
- *      Address of list to be merged from. May be NULL or empty.
- *  "secondList"
- *      Address of list to be merged from. May be NULL or empty.
- *  "pMergedList"
- *      Address where returned object is stored.
- *  "plContext"
- *      platform-specific context pointer * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds
- *  Returns a List Error if the functions fails in a non-fatal way
- *  Returns a Fatal Error if the function fails in an unrecoverable way
- */
-PKIX_Error *
-pkix_List_MergeLists(
-        PKIX_List *firstList,
-        PKIX_List *secondList,
-        PKIX_List **pMergedList,
-        void *plContext)
-{
-        PKIX_List *list = NULL;
-        PKIX_PL_Object *item = NULL;
-        PKIX_UInt32 numItems = 0;
-        PKIX_UInt32 i;
-
-        PKIX_ENTER(LIST, "pkix_List_MergeLists");
-        PKIX_NULLCHECK_ONE(pMergedList);
-
-        *pMergedList = NULL;
-
-        PKIX_CHECK(PKIX_List_Create(&list, plContext),
-                    PKIX_LISTCREATEFAILED);
-
-        if (firstList != NULL) {
-
-                PKIX_CHECK(PKIX_List_GetLength(firstList, &numItems, plContext),
-                    PKIX_LISTGETLENGTHFAILED);
-        }
-
-        for (i = 0; i < numItems; i++) {
-
-                PKIX_CHECK(PKIX_List_GetItem(firstList, i, &item, plContext),
-                        PKIX_LISTGETITEMFAILED);
-
-                PKIX_CHECK(PKIX_List_AppendItem(list, item, plContext),
-                        PKIX_LISTAPPENDITEMFAILED);
-
-                PKIX_DECREF(item);
-        }
-
-        numItems = 0;
-        if (secondList != NULL) {
-
-                PKIX_CHECK(PKIX_List_GetLength
-                        (secondList,
-                        &numItems,
-                        plContext),
-                        PKIX_LISTGETLENGTHFAILED);
-
-        }
-
-        for (i = 0; i < numItems; i++) {
-
-                PKIX_CHECK(PKIX_List_GetItem
-                        (secondList, i, &item, plContext),
-                        PKIX_LISTGETITEMFAILED);
-
-                PKIX_CHECK(PKIX_List_AppendItem
-                        (list, item, plContext), PKIX_LISTAPPENDITEMFAILED);
-
-                PKIX_DECREF(item);
-        }
-
-        *pMergedList = list;
-        list = NULL;
-
-cleanup:
-        PKIX_DECREF(list);
-        PKIX_DECREF(item);
- 
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_AppendList
- * DESCRIPTION:
- *
- *  Append items on "fromList" to the "toList". Item reference count on
- *  "toList" is not incremented, but items appended from "fromList" are
- *  incremented.
- *
- * PARAMETERS:
- *  "toList"
- *      Address of list to be appended to. Must be non-NULL.
- *  "fromList"
- *      Address of list to be appended from. May be NULL or empty.
- *  "plContext"
- *      platform-specific context pointer
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds
- *  Returns a List Error if the functions fails in a non-fatal way
- *  Returns a Fatal Error if the function fails in an unrecoverable way
- */
-PKIX_Error *
-pkix_List_AppendList(
-        PKIX_List *toList,
-        PKIX_List *fromList,
-        void *plContext)
-{
-        PKIX_PL_Object *item = NULL;
-        PKIX_UInt32 numItems = 0;
-        PKIX_UInt32 i;
-
-        PKIX_ENTER(LIST, "pkix_List_AppendList");
-        PKIX_NULLCHECK_ONE(toList);
-
-        /* if fromList is NULL or is an empty list, no action */
-
-        if (fromList == NULL) {
-                goto cleanup;
-        }
-
-        PKIX_CHECK(PKIX_List_GetLength(fromList, &numItems, plContext),
-                    PKIX_LISTGETLENGTHFAILED);
-
-        if (numItems == 0) {
-                goto cleanup;
-        }
-
-        for (i = 0; i < numItems; i++) {
-
-                PKIX_CHECK(PKIX_List_GetItem
-                        (fromList, i, &item, plContext),
-                        PKIX_LISTGETITEMFAILED);
-
-                PKIX_CHECK(PKIX_List_AppendItem(toList, item, plContext),
-                            PKIX_LISTAPPENDITEMFAILED);
-
-                PKIX_DECREF(item);
-        }
-
-cleanup:
-
-        PKIX_DECREF(item);
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_AppendUnique
- * DESCRIPTION:
- *
- *  Adds each Object in the List pointed to by "fromList" to the List pointed
- *  to by "toList", if it is not already a member of that List. In other words,
- *  "toList" becomes the union of the two sets.
- *
- * PARAMETERS:
- *  "toList"
- *      Address of a List of Objects to be augmented by "fromList". Must be
- *      non-NULL, but may be empty.
- *  "fromList"
- *      Address of a List of Objects to be added, if not already present, to
- *      "toList". Must be non-NULL, but may be empty.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Not Thread Safe - assumes exclusive access to "toList"
- *  (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds
- *  Returns a Fatal Error if the function fails in an unrecoverable way
- */
-PKIX_Error *
-pkix_List_AppendUnique(
-        PKIX_List *toList,
-        PKIX_List *fromList,
-        void *plContext)
-{
-        PKIX_Boolean isContained = PKIX_FALSE;
-        PKIX_UInt32 listLen = 0;
-        PKIX_UInt32 listIx = 0;
-        PKIX_PL_Object *object = NULL;
-
-        PKIX_ENTER(BUILD, "pkix_List_AppendUnique");
-        PKIX_NULLCHECK_TWO(fromList, toList);
-
-        PKIX_CHECK(PKIX_List_GetLength(fromList, &listLen, plContext),
-                PKIX_LISTGETLENGTHFAILED);
-
-        for (listIx = 0; listIx < listLen; listIx++) {
-
-                PKIX_CHECK(PKIX_List_GetItem
-                        (fromList, listIx, &object, plContext),
-                        PKIX_LISTGETITEMFAILED);
-
-                PKIX_CHECK(pkix_List_Contains
-                        (toList, object, &isContained, plContext),
-                        PKIX_LISTCONTAINSFAILED);
-
-                if (isContained == PKIX_FALSE) {
-                        PKIX_CHECK(PKIX_List_AppendItem
-                                (toList, object, plContext),
-                                PKIX_LISTAPPENDITEMFAILED);
-                }
-
-                PKIX_DECREF(object);
-        }
-
-cleanup:
-
-        PKIX_DECREF(object);
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_QuickSort
- * DESCRIPTION:
- *
- *  Sorts List of Objects "fromList" using "comparatorCallback"'s result as
- *  comasrison key and returns the sorted List at "pSortedList". The sorting
- *  algorithm used is quick sort (n*logn).
- *
- * PARAMETERS:
- *  "fromList"
- *      Address of a List of Objects to be sorted. Must be non-NULL, but may be
- *      empty.
- *  "comparatorCallback"
- *      Address of callback function that will compare two Objects on the List.
- *      It should return -1 for less, 0 for equal and 1 for greater. The
- *      callback implementation chooses what in Objects to be compared. Must be
- *      non-NULL.
- *  "pSortedList"
- *      Address of a List of Objects that shall be sorted and returned. Must be
- *      non-NULL, but may be empty.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Not Thread Safe - assumes exclusive access to "toList"
- *  (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds
- *  Returns a Fatal Error if the function fails in an unrecoverable way
- */
-PKIX_Error *
-pkix_List_QuickSort(
-        PKIX_List *fromList,
-        PKIX_List_SortComparatorCallback comparator,
-        PKIX_List **pSortedList,
-        void *plContext)
-{
-        PKIX_List *sortedList = NULL;
-        PKIX_List *lessList = NULL;
-        PKIX_List *greaterList = NULL;
-        PKIX_List *sortedLessList = NULL;
-        PKIX_List *sortedGreaterList = NULL;
-        PKIX_PL_Object *object = NULL;
-        PKIX_PL_Object *cmpObj = NULL;
-        PKIX_Int32 cmpResult = 0;
-        PKIX_UInt32 size = 0;
-        PKIX_UInt32 i;
-
-        PKIX_ENTER(BUILD, "pkix_List_QuickSort");
-        PKIX_NULLCHECK_THREE(fromList, comparator, pSortedList);
-
-        PKIX_CHECK(PKIX_List_GetLength(fromList, &size, plContext),
-                PKIX_LISTGETLENGTHFAILED);
-
-        PKIX_CHECK(PKIX_List_Create(&lessList, plContext),
-                    PKIX_LISTCREATEFAILED);
-
-        PKIX_CHECK(PKIX_List_Create(&greaterList, plContext),
-                    PKIX_LISTCREATEFAILED);
-
-        PKIX_CHECK(PKIX_List_GetItem
-                (fromList, 0, &object, plContext),
-                PKIX_LISTGETITEMFAILED);
-
-        /*
-         * Pick the first item on the list as the one to be compared.
-         * Separate rest of the itmes into two lists: less-than or greater-
-         * than lists. Sort those two lists recursively. Insert sorted
-         * less-than list before the picked item and append the greater-
-         * than list after the picked item.
-         */
-        for (i = 1; i < size; i++) {
-
-                PKIX_CHECK(PKIX_List_GetItem
-                        (fromList, i, &cmpObj, plContext),
-                        PKIX_LISTGETITEMFAILED);
-
-                PKIX_CHECK(comparator(object, cmpObj, &cmpResult, plContext),
-                        PKIX_COMPARATORCALLBACKFAILED);
-
-                if (cmpResult >= 0) {
-                        PKIX_CHECK(PKIX_List_AppendItem
-                                (lessList, cmpObj, plContext),
-                                PKIX_LISTAPPENDITEMFAILED);
-                } else {
-                        PKIX_CHECK(PKIX_List_AppendItem
-                                (greaterList, cmpObj, plContext),
-                                PKIX_LISTAPPENDITEMFAILED);
-                }
-                PKIX_DECREF(cmpObj);
-        }
-
-        PKIX_CHECK(PKIX_List_Create(&sortedList, plContext),
-                    PKIX_LISTCREATEFAILED);
-
-        PKIX_CHECK(PKIX_List_GetLength(lessList, &size, plContext),
-                PKIX_LISTGETLENGTHFAILED);
-
-        if (size > 1) {
-
-                PKIX_CHECK(pkix_List_QuickSort
-                        (lessList, comparator, &sortedLessList, plContext),
-                        PKIX_LISTQUICKSORTFAILED);
-
-                PKIX_CHECK(pkix_List_AppendList
-                        (sortedList, sortedLessList, plContext),
-                        PKIX_LISTAPPENDLISTFAILED);
-        } else {
-                PKIX_CHECK(pkix_List_AppendList
-                        (sortedList, lessList, plContext),
-                        PKIX_LISTAPPENDLISTFAILED);
-        }
-
-        PKIX_CHECK(PKIX_List_AppendItem(sortedList, object, plContext),
-                PKIX_LISTAPPENDFAILED);
-
-        PKIX_CHECK(PKIX_List_GetLength(greaterList, &size, plContext),
-                PKIX_LISTGETLENGTHFAILED);
-
-        if (size > 1) {
-
-                PKIX_CHECK(pkix_List_QuickSort
-                        (greaterList, comparator, &sortedGreaterList, plContext),
-                        PKIX_LISTQUICKSORTFAILED);
-
-                PKIX_CHECK(pkix_List_AppendList
-                        (sortedList, sortedGreaterList, plContext),
-                        PKIX_LISTAPPENDLISTFAILED);
-        } else {
-                PKIX_CHECK(pkix_List_AppendList
-                        (sortedList, greaterList, plContext),
-                        PKIX_LISTAPPENDLISTFAILED);
-        }
-
-        *pSortedList = sortedList;
-
-cleanup:
-
-        PKIX_DECREF(cmpObj);
-        PKIX_DECREF(object);
-        PKIX_DECREF(sortedGreaterList);
-        PKIX_DECREF(sortedLessList);
-        PKIX_DECREF(greaterList);
-        PKIX_DECREF(lessList);
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: pkix_List_BubbleSort
- * DESCRIPTION:
- *
- *  Sorts List of Objects "fromList" using "comparatorCallback"'s result as
- *  comasrison key and returns the sorted List at "pSortedList". The sorting
- *  algorithm used is bubble sort (n*n).
- *
- * PARAMETERS:
- *  "fromList"
- *      Address of a List of Objects to be sorted. Must be non-NULL, but may be
- *      empty.
- *  "comparatorCallback"
- *      Address of callback function that will compare two Objects on the List.
- *      It should return -1 for less, 0 for equal and 1 for greater. The
- *      callback implementation chooses what in Objects to be compared. Must be
- *      non-NULL.
- *  "pSortedList"
- *      Address of a List of Objects that shall be sorted and returned. Must be
- *      non-NULL, but may be empty.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Not Thread Safe - assumes exclusive access to "toList"
- *  (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds
- *  Returns a Fatal Error if the function fails in an unrecoverable way
- */
-PKIX_Error *
-pkix_List_BubbleSort(
-        PKIX_List *fromList,
-        PKIX_List_SortComparatorCallback comparator,
-        PKIX_List **pSortedList,
-        void *plContext)
-{
-        PKIX_List *sortedList = NULL;
-        PKIX_PL_Object *cmpObj = NULL;
-        PKIX_PL_Object *leastObj = NULL;
-        PKIX_Int32 cmpResult = 0;
-        PKIX_UInt32 size = 0;
-        PKIX_UInt32 i, j;
-
-        PKIX_ENTER(BUILD, "pkix_List_BubbleSort");
-        PKIX_NULLCHECK_THREE(fromList, comparator, pSortedList);
-        
-        if (fromList->immutable) {
-            PKIX_ERROR(PKIX_CANNOTSORTIMMUTABLELIST);
-        }
-        PKIX_CHECK(pkix_List_Duplicate
-                ((PKIX_PL_Object *) fromList,
-                (PKIX_PL_Object **) &sortedList,
-                 plContext),
-                PKIX_LISTDUPLICATEFAILED);
-
-        PKIX_CHECK(PKIX_List_GetLength(sortedList, &size, plContext),
-                PKIX_LISTGETLENGTHFAILED);
-
-        if (size > 1) {
-
-        /*
-         * Move from the first of the item on the list, For each iteration,
-         * compare and swap the least value to the head of the comparisoning
-         * sub-list.
-         */
-            for (i = 0; i < size - 1; i++) {
-
-                PKIX_CHECK(PKIX_List_GetItem
-                        (sortedList, i, &leastObj, plContext),
-                        PKIX_LISTGETITEMFAILED);
-
-                for (j = i + 1; j < size; j++) {
-                        PKIX_CHECK(PKIX_List_GetItem
-                                (sortedList, j, &cmpObj, plContext),
-                                PKIX_LISTGETITEMFAILED);
-                        PKIX_CHECK(comparator
-                                (leastObj, cmpObj, &cmpResult, plContext),
-                                PKIX_COMPARATORCALLBACKFAILED);
-                        if (cmpResult > 0) {
-                                PKIX_CHECK(PKIX_List_SetItem
-                                           (sortedList, j, leastObj, plContext),
-                                           PKIX_LISTSETITEMFAILED);
-
-                                PKIX_DECREF(leastObj);
-                                leastObj = cmpObj;
-                                cmpObj = NULL;
-                        } else {
-                                PKIX_DECREF(cmpObj);
-                        }
-                }
-                PKIX_CHECK(PKIX_List_SetItem
-                           (sortedList, i, leastObj, plContext),
-                           PKIX_LISTSETITEMFAILED);
-
-                PKIX_DECREF(leastObj);
-            }
-                
-        }
-
-        *pSortedList = sortedList;
-        sortedList = NULL;
-cleanup:
-
-        PKIX_DECREF(sortedList);
-        PKIX_DECREF(leastObj);
-        PKIX_DECREF(cmpObj);
-
-        PKIX_RETURN(LIST);
-}
-
-/* --Public-List-Functions--------------------------------------------- */
-
-/*
- * FUNCTION: PKIX_List_Create (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_Create(
-        PKIX_List **pList,
-        void *plContext)
-{
-        PKIX_List *list = NULL;
-
-        PKIX_ENTER(LIST, "PKIX_List_Create");
-        PKIX_NULLCHECK_ONE(pList);
-
-        PKIX_CHECK(pkix_List_Create_Internal(PKIX_TRUE, &list, plContext),
-                    PKIX_LISTCREATEINTERNALFAILED);
-
-        *pList = list;
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: PKIX_List_SetImmutable (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_SetImmutable(
-        PKIX_List *list,
-        void *plContext)
-{
-        PKIX_ENTER(LIST, "PKIX_List_SetImmutable");
-        PKIX_NULLCHECK_ONE(list);
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        list->immutable = PKIX_TRUE;
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: PKIX_List_IsImmutable (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_IsImmutable(
-        PKIX_List *list,
-        PKIX_Boolean *pImmutable,
-        void *plContext)
-{
-        PKIX_ENTER(LIST, "PKIX_List_IsImmutable");
-        PKIX_NULLCHECK_TWO(list, pImmutable);
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        *pImmutable = list->immutable;
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: PKIX_List_GetLength (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_GetLength(
-        PKIX_List *list,
-        PKIX_UInt32 *pLength,
-        void *plContext)
-{
-        PKIX_ENTER(LIST, "PKIX_List_GetLength");
-        PKIX_NULLCHECK_TWO(list, pLength);
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        *pLength = list->length;
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: PKIX_List_IsEmpty (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_IsEmpty(
-        PKIX_List *list,
-        PKIX_Boolean *pEmpty,
-        void *plContext)
-{
-        PKIX_UInt32 length;
-
-        PKIX_ENTER(LIST, "PKIX_List_IsEmpty");
-        PKIX_NULLCHECK_TWO(list, pEmpty);
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        length = list->length;
-
-        if (length == 0){
-                *pEmpty = PKIX_TRUE;
-        } else {
-                *pEmpty = PKIX_FALSE;
-        }
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: PKIX_List_AppendItem (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_AppendItem(
-        PKIX_List *list,
-        PKIX_PL_Object *item,
-        void *plContext)
-{
-        PKIX_List *lastElement = NULL;
-        PKIX_List *newElement = NULL;
-        PKIX_UInt32 length, i;
-
-        PKIX_ENTER(LIST, "PKIX_List_AppendItem");
-        PKIX_NULLCHECK_ONE(list);
-
-        if (list->immutable){
-                PKIX_ERROR(PKIX_OPERATIONNOTPERMITTEDONIMMUTABLELIST);
-        }
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        length = list->length;
-
-        /* find last element of list and create new element there */
-
-        lastElement = list;
-        for (i = 0; i < length; i++){
-                lastElement = lastElement->next;
-        }
-
-        PKIX_CHECK(pkix_List_Create_Internal
-                    (PKIX_FALSE, &newElement, plContext),
-                    PKIX_LISTCREATEINTERNALFAILED);
-
-        PKIX_INCREF(item);
-        newElement->item = item;
-
-        PKIX_CHECK(PKIX_PL_Object_InvalidateCache
-                    ((PKIX_PL_Object *)list, plContext),
-                    PKIX_OBJECTINVALIDATECACHEFAILED);
-
-        lastElement->next = newElement;
-        newElement = NULL;
-        list->length += 1;
-
-cleanup:
-
-        PKIX_DECREF(newElement);
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: PKIX_List_InsertItem (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_InsertItem(
-        PKIX_List *list,
-        PKIX_UInt32 index,
-        PKIX_PL_Object *item,
-        void *plContext)
-{
-        PKIX_List *element = NULL;
-        PKIX_List *newElem = NULL;
-
-        PKIX_ENTER(LIST, "PKIX_List_InsertItem");
-        PKIX_NULLCHECK_ONE(list);
-
-
-        if (list->immutable){
-                PKIX_ERROR(PKIX_OPERATIONNOTPERMITTEDONIMMUTABLELIST);
-        }
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        /* Create a new list object */
-        PKIX_CHECK(pkix_List_Create_Internal(PKIX_FALSE, &newElem, plContext),
-                    PKIX_LISTCREATEINTERNALFAILED);
-
-        if (list->length) {
-            PKIX_CHECK(pkix_List_GetElement(list, index, &element, plContext),
-                       PKIX_LISTGETELEMENTFAILED);
-            /* Copy the old element's contents into the new element */
-            newElem->item = element->item;
-            /* Add new item to the list */
-            PKIX_INCREF(item);
-            element->item = item;
-            /* Set the new element's next pointer to the old element's next */
-            newElem->next = element->next;
-            /* Set the old element's next pointer to the new element */
-            element->next = newElem;
-            newElem = NULL;
-        } else {
-            PKIX_INCREF(item);
-            newElem->item = item;
-            newElem->next = NULL;
-            list->next = newElem;
-            newElem = NULL;
-        }
-        list->length++;
-
-        PKIX_CHECK(PKIX_PL_Object_InvalidateCache
-                    ((PKIX_PL_Object *)list, plContext),
-                    PKIX_OBJECTINVALIDATECACHEFAILED);
-cleanup:
-        PKIX_DECREF(newElem);
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: PKIX_List_GetItem (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_GetItem(
-        PKIX_List *list,
-        PKIX_UInt32 index,
-        PKIX_PL_Object **pItem,
-        void *plContext)
-{
-        PKIX_List *element = NULL;
-
-        PKIX_ENTER(LIST, "PKIX_List_GetItem");
-        PKIX_NULLCHECK_TWO(list, pItem);
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        PKIX_CHECK(pkix_List_GetElement(list, index, &element, plContext),
-                    PKIX_LISTGETELEMENTFAILED);
-
-        PKIX_INCREF(element->item);
-        *pItem = element->item;
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: PKIX_List_SetItem (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_SetItem(
-        PKIX_List *list,
-        PKIX_UInt32 index,
-        PKIX_PL_Object *item,
-        void *plContext)
-{
-        PKIX_List *element;
-
-        PKIX_ENTER(LIST, "PKIX_List_SetItem");
-        PKIX_NULLCHECK_ONE(list);
-
-        if (list->immutable){
-                PKIX_ERROR(PKIX_OPERATIONNOTPERMITTEDONIMMUTABLELIST);
-        }
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        PKIX_CHECK(pkix_List_GetElement(list, index, &element, plContext),
-                    PKIX_LISTGETELEMENTFAILED);
-
-        /* DecRef old contents */
-        PKIX_DECREF(element->item);
-
-        /* Set New Contents */
-        PKIX_INCREF(item);
-        element->item = item;
-
-        PKIX_CHECK(PKIX_PL_Object_InvalidateCache
-                    ((PKIX_PL_Object *)list, plContext),
-                    PKIX_OBJECTINVALIDATECACHEFAILED);
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: PKIX_List_DeleteItem (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_DeleteItem(
-        PKIX_List *list,
-        PKIX_UInt32 index,
-        void *plContext)
-{
-        PKIX_List *element = NULL;
-        PKIX_List *prevElement = NULL;
-        PKIX_List *nextElement = NULL;
-
-        PKIX_ENTER(LIST, "PKIX_List_DeleteItem");
-        PKIX_NULLCHECK_ONE(list);
-
-        if (list->immutable){
-                PKIX_ERROR(PKIX_OPERATIONNOTPERMITTEDONIMMUTABLELIST);
-        }
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        PKIX_CHECK(pkix_List_GetElement(list, index, &element, plContext),
-                    PKIX_LISTGETELEMENTFAILED);
-
-        /* DecRef old contents */
-        PKIX_DECREF(element->item);
-
-        nextElement = element->next;
-
-        if (nextElement != NULL) {
-                /* If the next element exists, splice it out. */
-
-                /* Don't need to change ref counts for targets of next */
-                element->item = nextElement->item;
-                nextElement->item = NULL;
-
-                /* Don't need to change ref counts for targets of next */
-                element->next = nextElement->next;
-                nextElement->next = NULL;
-
-                PKIX_DECREF(nextElement);
-
-        } else { /* The element is at the tail of the list */
-                if (index != 0) {
-                        PKIX_CHECK(pkix_List_GetElement
-                                    (list, index-1, &prevElement, plContext),
-                                    PKIX_LISTGETELEMENTFAILED);
-                } else if (index == 0){ /* prevElement must be header */
-                        prevElement = list;
-                }
-                prevElement->next = NULL;
-
-                /* Delete the element */
-                PKIX_DECREF(element);
-        }
-
-        PKIX_CHECK(PKIX_PL_Object_InvalidateCache
-                    ((PKIX_PL_Object *)list, plContext),
-                    PKIX_OBJECTINVALIDATECACHEFAILED);
-
-        list->length = list->length - 1;
-
-cleanup:
-
-        PKIX_RETURN(LIST);
-}
-
-/*
- * FUNCTION: PKIX_List_ReverseList (see comments in pkix_util.h)
- */
-PKIX_Error *
-PKIX_List_ReverseList(
-        PKIX_List *list,
-        PKIX_List **pReversedList,
-        void *plContext)
-{
-        PKIX_List *reversedList = NULL;
-        PKIX_PL_Object *item = NULL;
-        PKIX_PL_Object *duplicateItem = NULL;
-        PKIX_UInt32 length, i;
-
-        PKIX_ENTER(LIST, "pkix_List_ReverseList");
-        PKIX_NULLCHECK_TWO(list, pReversedList);
-
-        if (!list->isHeader){
-                PKIX_ERROR(PKIX_INPUTLISTMUSTBEHEADER);
-        }
-
-        length = list->length;
-
-        /* Create a new list object */
-        PKIX_CHECK(PKIX_List_Create(&reversedList, plContext),
-                    PKIX_LISTCREATEINTERNALFAILED);
-
-        /*
-         * Starting with the last item and traversing backwards (from
-         * the original list), append each item to the reversed list
-         */
-
-        for (i = 1; i <= length; i++){
-                PKIX_CHECK(PKIX_List_GetItem
-                            (list, (length - i), &item, plContext),
-                            PKIX_LISTGETITEMFAILED);
-
-                PKIX_CHECK(PKIX_PL_Object_Duplicate
-                            (item, &duplicateItem, plContext),
-                            PKIX_LISTDUPLICATEFAILED);
-
-                PKIX_CHECK(PKIX_List_AppendItem
-                            (reversedList, duplicateItem, plContext),
-                            PKIX_LISTAPPENDITEMFAILED);
-
-                PKIX_DECREF(item);
-                PKIX_DECREF(duplicateItem);
-        }
-
-        *pReversedList = reversedList;
-
-cleanup:
-
-        PKIX_DECREF(item);
-        PKIX_DECREF(duplicateItem);
-
-        if (PKIX_ERROR_RECEIVED){
-                PKIX_DECREF(reversedList);
-        }
-
-        PKIX_RETURN(LIST);
-}