X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/5dd5f9ec28f304ca377c42fd7f711d6cf12b90e1..5c19dc3ae3bd8e40a9c028b0deddd50ff337692c:/Security/libsecurity_asn1/lib/nsprPortX.c diff --git a/Security/libsecurity_asn1/lib/nsprPortX.c b/Security/libsecurity_asn1/lib/nsprPortX.c deleted file mode 100644 index 16d5b79c..00000000 --- a/Security/libsecurity_asn1/lib/nsprPortX.c +++ /dev/null @@ -1,250 +0,0 @@ -/* - * Copyright (c) 2003-2006,2008,2010-2012 Apple Inc. All Rights Reserved. - * - * @APPLE_LICENSE_HEADER_START@ - * - * This file contains Original Code and/or Modifications of Original Code - * as defined in and that are subject to the Apple Public Source License - * Version 2.0 (the 'License'). You may not use this file except in - * compliance with the License. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. - * - * The Original Code and all software distributed under the License are - * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER - * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, - * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. - * Please see the License for the specific language governing rights and - * limitations under the License. - * - * @APPLE_LICENSE_HEADER_END@ - * - * nsprPortX.c - minimal platform dependent NSPR functions to enable - * use of DER libraries - */ - -#ifndef _NSPR_PORT_X_H_ -#define _NSPR_PORT_X_H_ - -#include "prmem.h" -#include "prlock.h" -#include "prerror.h" -#include "prinit.h" -#include "prbit.h" - -#include -#include -#include - -// MARK: *** Memory *** - -NSPR_API(void *) PR_Malloc(PRSize size) -{ - return malloc(size ? size : 1); -} -NSPR_API(void *) PR_Calloc(PRSize nelem, PRSize elsize) -{ - return calloc(nelem, elsize); -} -NSPR_API(void *) PR_Realloc(void *ptr, PRSize size) -{ - return realloc(ptr, size); -} -NSPR_API(void) PR_Free(void *ptr) -{ - return free(ptr); -} - -// MARK: *** locks *** - -NSPR_API(PRLock*) PR_NewLock(void) -{ - pthread_mutex_t *pm = PR_Malloc(sizeof(pthread_mutex_t)); - if(pm == NULL) { - return NULL; - } - if(pthread_mutex_init(pm, NULL)) { - PR_Free(pm); - return NULL; - } - return (PRLock*)pm; -} - -NSPR_API(void) PR_DestroyLock(PRLock *lock) -{ - if(lock == NULL) { - return; - } - pthread_mutex_destroy((pthread_mutex_t *)lock); - PR_Free(lock); -} - -NSPR_API(void) PR_Lock(PRLock *lock) -{ - if(lock == NULL) { - return; - } - pthread_mutex_lock((pthread_mutex_t *)lock); -} - -NSPR_API(PRStatus) PR_Unlock(PRLock *lock) -{ - if(lock == NULL) { - return PR_FAILURE; - } - pthread_mutex_unlock((pthread_mutex_t *)lock); - return PR_SUCCESS; -} - -// MARK: *** get/set error *** - -/* - * key for pthread_{set,get}specific and a lock to ensure it gets - * created once - */ -static pthread_key_t PR_threadKey; -static int PR_threadKeyInitFlag; // we have a PR_threadKey -static int PR_threadKeyErrorFlag; // unable to create PR_threadKey -static pthread_mutex_t PR_threadKeyLock = PTHREAD_MUTEX_INITIALIZER; - -/* - * The thing that gets stored on a per-thread basis. A pointer to - * this is associated with key PR_threadKey. Mallocd in - * PR_getThreadErrInfo(); freed directly by free() as - * PR_threadKey's destructor. - */ -typedef struct { - PRInt32 osError; - PRErrorCode prError; -} PR_threadErrInfo; - -/* - * One-time init of PR_threadKey, returns nonzero on error. - * Does not attempt to init PR_threadKey if doCreate is false and - * a previous call to this routine resulted in error (i.e., this - * is the GetXError() following a failed SetError()). - */ -static PRInt32 PR_initThreadKey( - int doCreate) -{ - PRInt32 prtn = 0; - if(PR_threadKeyInitFlag) { - /* thread safe since we never clear this flag; we're ready to go */ - return 0; - } - pthread_mutex_lock(&PR_threadKeyLock); - if(PR_threadKeyErrorFlag && !doCreate) { - /* no error to get because the last SetXError failed */ - prtn = PR_IO_ERROR; - } - else if(!PR_threadKeyInitFlag) { - prtn = pthread_key_create(&PR_threadKey, free); - if(prtn) { - /* out of pthread_key_t's */ - PR_threadKeyErrorFlag = 1; - } - else { - PR_threadKeyErrorFlag = 0; // in case of retry */ - PR_threadKeyInitFlag = 1; // success - } - } - pthread_mutex_unlock(&PR_threadKeyLock); - return prtn; -} - -/* - * Get current thread's PR_threadErrInfo. Create one if doCreate is - * true and one does not exist. - * - * -- A nonzero *threadKeyError on return indicates that we can - * not create a pthread_key_t; in this case we return NULL. - * -- Note that NULL return with zero threadKeyError and zero - * doCreate indicates "no per-thread error set yet", which is - * not an error. - */ -static PR_threadErrInfo *PR_getThreadErrInfo( - int doCreate, - PRInt32 *threadKeyError) // RETURNED, an OSStatus -{ - *threadKeyError = PR_initThreadKey(doCreate); - if(*threadKeyError) { - return NULL; - } - PR_threadErrInfo *errInfo = pthread_getspecific(PR_threadKey); - if((errInfo == NULL) && doCreate) { - errInfo = (PR_threadErrInfo *)malloc(sizeof(*errInfo)); - if(errInfo == NULL) { - /* - * malloc failure, retriable failure of this routine (not - * a PR_threadKeyErrorFlag style error). - * Note that this is *not* detected in a subsequent - * GetXError() call, but it will allow for somewhat - * graceful recovery in case some memory gets freed - * up. - */ - *threadKeyError = PR_OUT_OF_MEMORY_ERROR; - } - else { - memset(errInfo, 0, sizeof(*errInfo)); - pthread_setspecific(PR_threadKey, errInfo); - } - } - return errInfo; -} - -PR_IMPLEMENT(PRErrorCode) PR_GetError(void) -{ - PRInt32 prtn; - PR_threadErrInfo *errInfo = PR_getThreadErrInfo(0, &prtn); - if(errInfo == NULL) { - /* no error set or per-thread logic uninitialized */ - if(prtn) { - return PR_INSUFFICIENT_RESOURCES_ERROR; - } - else { - return 0; - } - } - else { - return errInfo->prError; - } -} - -PR_IMPLEMENT(PRInt32) PR_GetOSError(void) -{ - PRInt32 prtn; - PR_threadErrInfo *errInfo = PR_getThreadErrInfo(0, &prtn); - if(errInfo == NULL) { - /* no error set or per-thread logic uninitialized */ - return prtn; - } - else { - return errInfo->osError; - } -} - -PR_IMPLEMENT(void) PR_SetError(PRErrorCode code, PRInt32 osErr) -{ - PRInt32 prtn; - PR_threadErrInfo *errInfo = PR_getThreadErrInfo(1, &prtn); - if(errInfo != NULL) { - errInfo->osError = osErr; - errInfo->prError = code; - } - /* else per-thread logic uninitialized */ -} - -// MARK: *** misc. *** - -/* -** Compute the log of the least power of 2 greater than or equal to n -*/ -NSPR_API(PRIntn) PR_CeilingLog2(PRUint32 i) -{ - PRIntn r; - PR_CEILING_LOG2(r,i); - return r; -} - -#endif /* _NSPR_PORT_X_H_ */