diff options
Diffstat (limited to 'security/nss/lib/util/secport.c')
-rw-r--r-- | security/nss/lib/util/secport.c | 581 |
1 files changed, 0 insertions, 581 deletions
diff --git a/security/nss/lib/util/secport.c b/security/nss/lib/util/secport.c deleted file mode 100644 index 276cf6208..000000000 --- a/security/nss/lib/util/secport.c +++ /dev/null @@ -1,581 +0,0 @@ -/* - * The contents of this file are subject to the Mozilla Public - * License Version 1.1 (the "License"); you may not use this file - * except in compliance with the License. You may obtain a copy of - * the License at http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS - * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or - * implied. See the License for the specific language governing - * rights and limitations under the License. - * - * The Original Code is the Netscape security libraries. - * - * The Initial Developer of the Original Code is Netscape - * Communications Corporation. Portions created by Netscape are - * Copyright (C) 1994-2000 Netscape Communications Corporation. All - * Rights Reserved. - * - * Contributor(s): - * - * Alternatively, the contents of this file may be used under the - * terms of the GNU General Public License Version 2 or later (the - * "GPL"), in which case the provisions of the GPL are applicable - * instead of those above. If you wish to allow use of your - * version of this file only under the terms of the GPL and not to - * allow others to use your version of this file under the MPL, - * indicate your decision by deleting the provisions above and - * replace them with the notice and other provisions required by - * the GPL. If you do not delete the provisions above, a recipient - * may use your version of this file under either the MPL or the - * GPL. - */ - -/* - * secport.c - portability interfaces for security libraries - * - * This file abstracts out libc functionality that libsec depends on - * - * NOTE - These are not public interfaces - * - * $Id$ - */ - -#include "seccomon.h" -#include "prmem.h" -#include "prerror.h" -#include "plarena.h" -#include "secerr.h" -#include "prmon.h" -#include "nsslocks.h" -#include "secport.h" -#include "prvrsion.h" -#include "prenv.h" - -#ifdef DEBUG -#define THREADMARK -#endif /* DEBUG */ - -#ifdef THREADMARK -#include "prthread.h" -#endif /* THREADMARK */ - -#if defined(XP_UNIX) || defined(XP_MAC) || defined(XP_OS2) || defined(XP_BEOS) -#include <stdlib.h> -#else -#include "wtypes.h" -#endif - -#define SET_ERROR_CODE /* place holder for code to set PR error code. */ - -#ifdef THREADMARK -typedef struct threadmark_mark_str { - struct threadmark_mark_str *next; - void *mark; -} threadmark_mark; - -#endif /* THREADMARK */ - -/* The value of this magic must change each time PORTArenaPool changes. */ -#define ARENAPOOL_MAGIC 0xB8AC9BDF - -typedef struct PORTArenaPool_str { - PLArenaPool arena; - PRUint32 magic; - PRLock * lock; -#ifdef THREADMARK - PRThread *marking_thread; - threadmark_mark *first_mark; -#endif -} PORTArenaPool; - - -/* count of allocation failures. */ -unsigned long port_allocFailures; - -/* locations for registering Unicode conversion functions. - * XXX is this the appropriate location? or should they be - * moved to client/server specific locations? - */ -PORTCharConversionFunc ucs4Utf8ConvertFunc; -PORTCharConversionFunc ucs2Utf8ConvertFunc; -PORTCharConversionWSwapFunc ucs2AsciiConvertFunc; - -void * -PORT_Alloc(size_t bytes) -{ - void *rv; - - /* Always allocate a non-zero amount of bytes */ - rv = (void *)PR_Malloc(bytes ? bytes : 1); - if (!rv) { - ++port_allocFailures; - PORT_SetError(SEC_ERROR_NO_MEMORY); - } - return rv; -} - -void * -PORT_Realloc(void *oldptr, size_t bytes) -{ - void *rv; - - rv = (void *)PR_Realloc(oldptr, bytes); - if (!rv) { - ++port_allocFailures; - PORT_SetError(SEC_ERROR_NO_MEMORY); - } - return rv; -} - -void * -PORT_ZAlloc(size_t bytes) -{ - void *rv; - - /* Always allocate a non-zero amount of bytes */ - rv = (void *)PR_Calloc(1, bytes ? bytes : 1); - if (!rv) { - ++port_allocFailures; - PORT_SetError(SEC_ERROR_NO_MEMORY); - } - return rv; -} - -void -PORT_Free(void *ptr) -{ - if (ptr) { - PR_Free(ptr); - } -} - -void -PORT_ZFree(void *ptr, size_t len) -{ - if (ptr) { - memset(ptr, 0, len); - PR_Free(ptr); - } -} - -char * -PORT_Strdup(const char *str) -{ - size_t len = PORT_Strlen(str)+1; - char *newstr; - - newstr = (char *)PORT_Alloc(len); - if (newstr) { - PORT_Memcpy(newstr, str, len); - } - return newstr; -} - -void -PORT_SetError(int value) -{ - PR_SetError(value, 0); - return; -} - -int -PORT_GetError(void) -{ - return(PR_GetError()); -} - -/********************* Arena code follows *****************************/ - -PLArenaPool * -PORT_NewArena(unsigned long chunksize) -{ - PORTArenaPool *pool; - - pool = PORT_ZNew(PORTArenaPool); - if (!pool) { - return NULL; - } - pool->magic = ARENAPOOL_MAGIC; - pool->lock = PZ_NewLock(nssILockArena); - if (!pool->lock) { - ++port_allocFailures; - PORT_Free(pool); - return NULL; - } - PL_InitArenaPool(&pool->arena, "security", chunksize, sizeof(double)); - return(&pool->arena); -} - -void * -PORT_ArenaAlloc(PLArenaPool *arena, size_t size) -{ - void *p; - - PORTArenaPool *pool = (PORTArenaPool *)arena; - - /* Is it one of ours? Assume so and check the magic */ - if (ARENAPOOL_MAGIC == pool->magic ) { - PZ_Lock(pool->lock); -#ifdef THREADMARK - /* Most likely one of ours. Is there a thread id? */ - if (pool->marking_thread && - pool->marking_thread != PR_GetCurrentThread() ) { - /* Another thread holds a mark in this arena */ - PZ_Unlock(pool->lock); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return NULL; - } /* tid != null */ -#endif /* THREADMARK */ - PL_ARENA_ALLOCATE(p, arena, size); - PZ_Unlock(pool->lock); - } else { - PL_ARENA_ALLOCATE(p, arena, size); - } - - if (!p) { - ++port_allocFailures; - PORT_SetError(SEC_ERROR_NO_MEMORY); - } - - return(p); -} - -void * -PORT_ArenaZAlloc(PLArenaPool *arena, size_t size) -{ - void *p = PORT_ArenaAlloc(arena, size); - - if (p) { - PORT_Memset(p, 0, size); - } - - return(p); -} - -/* XXX - need to zeroize!! - jsw */ -void -PORT_FreeArena(PLArenaPool *arena, PRBool zero) -{ - PORTArenaPool *pool = (PORTArenaPool *)arena; - PRLock * lock = (PRLock *)0; - size_t len = sizeof *arena; - extern const PRVersionDescription * libVersionPoint(void); - static const PRVersionDescription * pvd; - static PRBool doFreeArenaPool = PR_FALSE; - - if (ARENAPOOL_MAGIC == pool->magic ) { - len = sizeof *pool; - lock = pool->lock; - PZ_Lock(lock); - } - if (!pvd) { - /* Each of NSPR's DLLs has a function libVersionPoint(). - ** We could do a lot of extra work to be sure we're calling the - ** one in the DLL that holds PR_FreeArenaPool, but instead we - ** rely on the fact that ALL NSPR DLLs in the same directory - ** must be from the same release, and we call which ever one we get. - */ - /* no need for thread protection here */ - pvd = libVersionPoint(); - if ((pvd->vMajor > 4) || - (pvd->vMajor == 4 && pvd->vMinor > 1) || - (pvd->vMajor == 4 && pvd->vMinor == 1 && pvd->vPatch >= 1)) { - const char *ev = PR_GetEnv("NSS_DISABLE_ARENA_FREE_LIST"); - if (!ev) doFreeArenaPool = PR_TRUE; - } - } - if (doFreeArenaPool) { - PL_FreeArenaPool(arena); - } else { - PL_FinishArenaPool(arena); - } - PORT_ZFree(arena, len); - if (lock) { - PZ_Unlock(lock); - PZ_DestroyLock(lock); - } -} - -void * -PORT_ArenaGrow(PLArenaPool *arena, void *ptr, size_t oldsize, size_t newsize) -{ - PORTArenaPool *pool = (PORTArenaPool *)arena; - PORT_Assert(newsize >= oldsize); - - if (ARENAPOOL_MAGIC == pool->magic ) { - PZ_Lock(pool->lock); - /* Do we do a THREADMARK check here? */ - PL_ARENA_GROW(ptr, arena, oldsize, ( newsize - oldsize ) ); - PZ_Unlock(pool->lock); - } else { - PL_ARENA_GROW(ptr, arena, oldsize, ( newsize - oldsize ) ); - } - - return(ptr); -} - -void * -PORT_ArenaMark(PLArenaPool *arena) -{ - void * result; - - PORTArenaPool *pool = (PORTArenaPool *)arena; - if (ARENAPOOL_MAGIC == pool->magic ) { - PZ_Lock(pool->lock); -#ifdef THREADMARK - { - threadmark_mark *tm, **pw; - PRThread * currentThread = PR_GetCurrentThread(); - - if (! pool->marking_thread ) { - /* First mark */ - pool->marking_thread = currentThread; - } else if (currentThread != pool->marking_thread ) { - PZ_Unlock(pool->lock); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return NULL; - } - - result = PL_ARENA_MARK(arena); - PL_ARENA_ALLOCATE(tm, arena, sizeof(threadmark_mark)); - if (!tm) { - PZ_Unlock(pool->lock); - PORT_SetError(SEC_ERROR_NO_MEMORY); - return NULL; - } - - tm->mark = result; - tm->next = (threadmark_mark *)NULL; - - pw = &pool->first_mark; - while( *pw ) { - pw = &(*pw)->next; - } - - *pw = tm; - } -#else /* THREADMARK */ - result = PL_ARENA_MARK(arena); -#endif /* THREADMARK */ - PZ_Unlock(pool->lock); - } else { - /* a "pure" NSPR arena */ - result = PL_ARENA_MARK(arena); - } - return result; -} - -void -PORT_ArenaRelease(PLArenaPool *arena, void *mark) -{ - PORTArenaPool *pool = (PORTArenaPool *)arena; - if (ARENAPOOL_MAGIC == pool->magic ) { - PZ_Lock(pool->lock); -#ifdef THREADMARK - { - threadmark_mark **pw, *tm; - - if (PR_GetCurrentThread() != pool->marking_thread ) { - PZ_Unlock(pool->lock); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return /* no error indication available */ ; - } - - pw = &pool->first_mark; - while( *pw && (mark != (*pw)->mark) ) { - pw = &(*pw)->next; - } - - if (! *pw ) { - /* bad mark */ - PZ_Unlock(pool->lock); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return /* no error indication available */ ; - } - - tm = *pw; - *pw = (threadmark_mark *)NULL; - - PL_ARENA_RELEASE(arena, mark); - - if (! pool->first_mark ) { - pool->marking_thread = (PRThread *)NULL; - } - } -#else /* THREADMARK */ - PL_ARENA_RELEASE(arena, mark); -#endif /* THREADMARK */ - PZ_Unlock(pool->lock); - } else { - PL_ARENA_RELEASE(arena, mark); - } -} - -void -PORT_ArenaUnmark(PLArenaPool *arena, void *mark) -{ -#ifdef THREADMARK - PORTArenaPool *pool = (PORTArenaPool *)arena; - if (ARENAPOOL_MAGIC == pool->magic ) { - threadmark_mark **pw, *tm; - - PZ_Lock(pool->lock); - - if (PR_GetCurrentThread() != pool->marking_thread ) { - PZ_Unlock(pool->lock); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return /* no error indication available */ ; - } - - pw = &pool->first_mark; - while( ((threadmark_mark *)NULL != *pw) && (mark != (*pw)->mark) ) { - pw = &(*pw)->next; - } - - if ((threadmark_mark *)NULL == *pw ) { - /* bad mark */ - PZ_Unlock(pool->lock); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return /* no error indication available */ ; - } - - tm = *pw; - *pw = (threadmark_mark *)NULL; - - if (! pool->first_mark ) { - pool->marking_thread = (PRThread *)NULL; - } - - PZ_Unlock(pool->lock); - } -#endif /* THREADMARK */ -} - -char * -PORT_ArenaStrdup(PLArenaPool *arena, const char *str) { - int len = PORT_Strlen(str)+1; - char *newstr; - - newstr = (char*)PORT_ArenaAlloc(arena,len); - if (newstr) { - PORT_Memcpy(newstr,str,len); - } - return newstr; -} - -/********************** end of arena functions ***********************/ - -/****************** unicode conversion functions ***********************/ -/* - * NOTE: These conversion functions all assume that the multibyte - * characters are going to be in NETWORK BYTE ORDER, not host byte - * order. This is because the only time we deal with UCS-2 and UCS-4 - * are when the data was received from or is going to be sent out - * over the wire (in, e.g. certificates). - */ - -void -PORT_SetUCS4_UTF8ConversionFunction(PORTCharConversionFunc convFunc) -{ - ucs4Utf8ConvertFunc = convFunc; -} - -void -PORT_SetUCS2_ASCIIConversionFunction(PORTCharConversionWSwapFunc convFunc) -{ - ucs2AsciiConvertFunc = convFunc; -} - -void -PORT_SetUCS2_UTF8ConversionFunction(PORTCharConversionFunc convFunc) -{ - ucs2Utf8ConvertFunc = convFunc; -} - -PRBool -PORT_UCS4_UTF8Conversion(PRBool toUnicode, unsigned char *inBuf, - unsigned int inBufLen, unsigned char *outBuf, - unsigned int maxOutBufLen, unsigned int *outBufLen) -{ - if(!ucs4Utf8ConvertFunc) { - return sec_port_ucs4_utf8_conversion_function(toUnicode, - inBuf, inBufLen, outBuf, maxOutBufLen, outBufLen); - } - - return (*ucs4Utf8ConvertFunc)(toUnicode, inBuf, inBufLen, outBuf, - maxOutBufLen, outBufLen); -} - -PRBool -PORT_UCS2_UTF8Conversion(PRBool toUnicode, unsigned char *inBuf, - unsigned int inBufLen, unsigned char *outBuf, - unsigned int maxOutBufLen, unsigned int *outBufLen) -{ - if(!ucs2Utf8ConvertFunc) { - return sec_port_ucs2_utf8_conversion_function(toUnicode, - inBuf, inBufLen, outBuf, maxOutBufLen, outBufLen); - } - - return (*ucs2Utf8ConvertFunc)(toUnicode, inBuf, inBufLen, outBuf, - maxOutBufLen, outBufLen); -} - -PRBool -PORT_UCS2_ASCIIConversion(PRBool toUnicode, unsigned char *inBuf, - unsigned int inBufLen, unsigned char *outBuf, - unsigned int maxOutBufLen, unsigned int *outBufLen, - PRBool swapBytes) -{ - if(!ucs2AsciiConvertFunc) { - return PR_FALSE; - } - - return (*ucs2AsciiConvertFunc)(toUnicode, inBuf, inBufLen, outBuf, - maxOutBufLen, outBufLen, swapBytes); -} - - -/* Portable putenv. Creates/replaces an environment variable of the form - * envVarName=envValue - */ -int -NSS_PutEnv(const char * envVarName, const char * envValue) -{ -#if defined(XP_MAC) || defined(_WIN32_WCE) - return SECFailure; -#else - SECStatus result = SECSuccess; - char * encoded; - int putEnvFailed; -#ifdef _WIN32 - PRBool setOK; - - setOK = SetEnvironmentVariable(envVarName, envValue); - if (!setOK) { - SET_ERROR_CODE - return SECFailure; - } -#endif - - encoded = (char *)PORT_ZAlloc(strlen(envVarName) + 2 + strlen(envValue)); - strcpy(encoded, envVarName); - strcat(encoded, "="); - strcat(encoded, envValue); - - putEnvFailed = putenv(encoded); /* adopt. */ - if (putEnvFailed) { - SET_ERROR_CODE - result = SECFailure; - PORT_Free(encoded); - } - return result; -#endif -} - |