Delete bundled copy of NSS and replace with README.

nss/lib/libpkix/pkix/checker/pkix_basicconstraintschecker.c

Index: nss/lib/libpkix/pkix/checker/pkix_basicconstraintschecker.c
diff --git a/nss/lib/libpkix/pkix/checker/pkix_basicconstraintschecker.c b/nss/lib/libpkix/pkix/checker/pkix_basicconstraintschecker.c
deleted file mode 100755
index 0e7a87997d49527a984921df0f900fe28cbebbcf..0000000000000000000000000000000000000000
--- a/nss/lib/libpkix/pkix/checker/pkix_basicconstraintschecker.c
+++ /dev/null
@@ -1,306 +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_basicconstraintschecker.c
- *
- * Functions for basic constraints validation
- *
- */
-
-#include "pkix_basicconstraintschecker.h"
-
-/* --Private-BasicConstraintsCheckerState-Functions------------------------- */
-
-/*
- * FUNCTION: pkix_BasicConstraintsCheckerState_Destroy
- * (see comments for PKIX_PL_DestructorCallback in pkix_pl_system.h)
- */
-static PKIX_Error *
-pkix_BasicConstraintsCheckerState_Destroy(
-        PKIX_PL_Object *object,
-        void *plContext)
-{
-        pkix_BasicConstraintsCheckerState *state = NULL;
-
-        PKIX_ENTER(BASICCONSTRAINTSCHECKERSTATE,
-                    "pkix_BasicConstraintsCheckerState_Destroy");
-
-        PKIX_NULLCHECK_ONE(object);
-
-        /* Check that this object is a basic constraints checker state */
-        PKIX_CHECK(pkix_CheckType
-                (object, PKIX_BASICCONSTRAINTSCHECKERSTATE_TYPE, plContext),
-                PKIX_OBJECTNOTBASICCONSTRAINTSCHECKERSTATE);
-
-        state = (pkix_BasicConstraintsCheckerState *)object;
-
-        PKIX_DECREF(state->basicConstraintsOID);
-
-cleanup:
-
-        PKIX_RETURN(BASICCONSTRAINTSCHECKERSTATE);
-}
-
-/*
- * FUNCTION: pkix_BasicConstraintsCheckerState_RegisterSelf
- * DESCRIPTION:
- *  Registers PKIX_CERT_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_BasicConstraintsCheckerState_RegisterSelf(void *plContext)
-{
-        extern pkix_ClassTable_Entry systemClasses[PKIX_NUMTYPES];
-        pkix_ClassTable_Entry entry;
-
-        PKIX_ENTER(BASICCONSTRAINTSCHECKERSTATE,
-                "pkix_BasicConstraintsCheckerState_RegisterSelf");
-
-        entry.description = "BasicConstraintsCheckerState";
-        entry.objCounter = 0;
-        entry.typeObjectSize = sizeof(pkix_BasicConstraintsCheckerState);
-        entry.destructor = pkix_BasicConstraintsCheckerState_Destroy;
-        entry.equalsFunction = NULL;
-        entry.hashcodeFunction = NULL;
-        entry.toStringFunction = NULL;
-        entry.comparator = NULL;
-        entry.duplicateFunction = NULL;
-
-        systemClasses[PKIX_BASICCONSTRAINTSCHECKERSTATE_TYPE] = entry;
-
-        PKIX_RETURN(BASICCONSTRAINTSCHECKERSTATE);
-}
-
-/*
- * FUNCTION: pkix_BasicConstraintsCheckerState_Create
- * DESCRIPTION:
- *
- *  Creates a new BasicConstraintsCheckerState using the number of certs in
- *  the chain represented by "certsRemaining" and stores it at "pState".
- *
- * PARAMETERS:
- *  "certsRemaining"
- *      Number of certificates in the chain.
- *  "pState"
- *      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 BasicConstraintsCheckerState 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_BasicConstraintsCheckerState_Create(
-        PKIX_UInt32 certsRemaining,
-        pkix_BasicConstraintsCheckerState **pState,
-        void *plContext)
-{
-        pkix_BasicConstraintsCheckerState *state = NULL;
-
-        PKIX_ENTER(BASICCONSTRAINTSCHECKERSTATE,
-                    "pkix_BasicConstraintsCheckerState_Create");
-
-        PKIX_NULLCHECK_ONE(pState);
-
-        PKIX_CHECK(PKIX_PL_Object_Alloc
-                    (PKIX_BASICCONSTRAINTSCHECKERSTATE_TYPE,
-                    sizeof (pkix_BasicConstraintsCheckerState),
-                    (PKIX_PL_Object **)&state,
-                    plContext),
-                    PKIX_COULDNOTCREATEBASICCONSTRAINTSSTATEOBJECT);
-
-        /* initialize fields */
-        state->certsRemaining = certsRemaining;
-        state->maxPathLength = PKIX_UNLIMITED_PATH_CONSTRAINT;
-
-        PKIX_CHECK(PKIX_PL_OID_Create
-                    (PKIX_BASICCONSTRAINTS_OID,
-                    &state->basicConstraintsOID,
-                    plContext),
-                    PKIX_OIDCREATEFAILED);
-
-        *pState = state;
-        state = NULL;
-
-cleanup:
-
-        PKIX_DECREF(state);
-
-        PKIX_RETURN(BASICCONSTRAINTSCHECKERSTATE);
-}
-
-/* --Private-BasicConstraintsChecker-Functions------------------------------ */
-
-/*
- * FUNCTION: pkix_BasicConstraintsChecker_Check
- * (see comments for PKIX_CertChainChecker_CheckCallback in pkix_checker.h)
- */
-PKIX_Error *
-pkix_BasicConstraintsChecker_Check(
-        PKIX_CertChainChecker *checker,
-        PKIX_PL_Cert *cert,
-        PKIX_List *unresolvedCriticalExtensions,  /* list of PKIX_PL_OID */
-        void **pNBIOContext,
-        void *plContext)
-{
-        PKIX_PL_CertBasicConstraints *basicConstraints = NULL;
-        pkix_BasicConstraintsCheckerState *state = NULL;
-        PKIX_Boolean caFlag = PKIX_FALSE;
-        PKIX_Int32 pathLength = 0;
-        PKIX_Int32 maxPathLength_now;
-        PKIX_Boolean isSelfIssued = PKIX_FALSE;
-
-        PKIX_ENTER(CERTCHAINCHECKER, "pkix_BasicConstraintsChecker_Check");
-        PKIX_NULLCHECK_THREE(checker, cert, pNBIOContext);
-
-        *pNBIOContext = NULL; /* we never block on pending I/O */
-
-        PKIX_CHECK(PKIX_CertChainChecker_GetCertChainCheckerState
-                    (checker, (PKIX_PL_Object **)&state, plContext),
-                    PKIX_CERTCHAINCHECKERGETCERTCHAINCHECKERSTATEFAILED);
-
-        state->certsRemaining--;
-
-        if (state->certsRemaining != 0) {
-
-                PKIX_CHECK(PKIX_PL_Cert_GetBasicConstraints
-                    (cert, &basicConstraints, plContext),
-                    PKIX_CERTGETBASICCONSTRAINTSFAILED);
-
-                /* get CA Flag and path length */
-                if (basicConstraints != NULL) {
-                        PKIX_CHECK(PKIX_PL_BasicConstraints_GetCAFlag
-                            (basicConstraints,
-                            &caFlag,
-                            plContext),
-                            PKIX_BASICCONSTRAINTSGETCAFLAGFAILED);
-
-                if (caFlag == PKIX_TRUE) {
-                        PKIX_CHECK
-                            (PKIX_PL_BasicConstraints_GetPathLenConstraint
-                            (basicConstraints,
-                            &pathLength,
-                            plContext),
-                            PKIX_BASICCONSTRAINTSGETPATHLENCONSTRAINTFAILED);
-                }
-
-                }else{
-                        caFlag = PKIX_FALSE;
-                        pathLength = PKIX_UNLIMITED_PATH_CONSTRAINT;
-                }
-
-                PKIX_CHECK(pkix_IsCertSelfIssued
-                        (cert,
-                        &isSelfIssued,
-                        plContext),
-                        PKIX_ISCERTSELFISSUEDFAILED);
-
-                maxPathLength_now = state->maxPathLength;
-
-                if (isSelfIssued != PKIX_TRUE) {
-
-                    /* Not last CA Cert, but maxPathLength is down to zero */
-                    if (maxPathLength_now == 0) {
-                        PKIX_ERROR(PKIX_BASICCONSTRAINTSVALIDATIONFAILEDLN);
-                    }
-
-                    if (caFlag == PKIX_FALSE) {
-                        PKIX_ERROR(PKIX_BASICCONSTRAINTSVALIDATIONFAILEDCA);
-                    }
-
-                    if (maxPathLength_now > 0) { /* can be unlimited (-1) */
-                        maxPathLength_now--;
-                    }
-
-                }
-
-                if (caFlag == PKIX_TRUE) {
-                    if (maxPathLength_now == PKIX_UNLIMITED_PATH_CONSTRAINT){
-                            maxPathLength_now = pathLength;
-                    } else {
-                            /* If pathLength is not specified, don't set */
-                        if (pathLength != PKIX_UNLIMITED_PATH_CONSTRAINT) {
-                            maxPathLength_now =
-                                    (maxPathLength_now > pathLength)?
-                                    pathLength:maxPathLength_now;
-                        }
-                    }
-                }
-
-                state->maxPathLength = maxPathLength_now;
-        }
-
-        /* Remove Basic Constraints Extension OID from list */
-        if (unresolvedCriticalExtensions != NULL) {
-
-                PKIX_CHECK(pkix_List_Remove
-                            (unresolvedCriticalExtensions,
-                            (PKIX_PL_Object *) state->basicConstraintsOID,
-                            plContext),
-                            PKIX_LISTREMOVEFAILED);
-        }
-
-
-        PKIX_CHECK(PKIX_CertChainChecker_SetCertChainCheckerState
-                    (checker, (PKIX_PL_Object *)state, plContext),
-                    PKIX_CERTCHAINCHECKERSETCERTCHAINCHECKERSTATEFAILED);
-
-
-cleanup:
-        PKIX_DECREF(state);
-        PKIX_DECREF(basicConstraints);
-        PKIX_RETURN(CERTCHAINCHECKER);
-
-}
-
-/*
- * FUNCTION: pkix_BasicConstraintsChecker_Initialize
- * DESCRIPTION:
- *  Registers PKIX_CERT_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_BasicConstraintsChecker_Initialize(
-        PKIX_UInt32 certsRemaining,
-        PKIX_CertChainChecker **pChecker,
-        void *plContext)
-{
-        pkix_BasicConstraintsCheckerState *state = NULL;
-
-        PKIX_ENTER(CERTCHAINCHECKER, "pkix_BasicConstraintsChecker_Initialize");
-        PKIX_NULLCHECK_ONE(pChecker);
-
-        PKIX_CHECK(pkix_BasicConstraintsCheckerState_Create
-                    (certsRemaining, &state, plContext),
-                    PKIX_BASICCONSTRAINTSCHECKERSTATECREATEFAILED);
-
-        PKIX_CHECK(PKIX_CertChainChecker_Create
-                    (pkix_BasicConstraintsChecker_Check,
-                    PKIX_FALSE,
-                    PKIX_FALSE,
-                    NULL,
-                    (PKIX_PL_Object *)state,
-                    pChecker,
-                    plContext),
-                    PKIX_CERTCHAINCHECKERCHECKFAILED);
-
-cleanup:
-        PKIX_DECREF(state);
-
-        PKIX_RETURN(CERTCHAINCHECKER);
-}