diff options
Diffstat (limited to 'security/nss/lib/util/secport.c')
| -rw-r--r-- | security/nss/lib/util/secport.c | 601 |
1 files changed, 0 insertions, 601 deletions
diff --git a/security/nss/lib/util/secport.c b/security/nss/lib/util/secport.c deleted file mode 100644 index 76b0b195b..000000000 --- a/security/nss/lib/util/secport.c +++ /dev/null @@ -1,601 +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" - -#ifdef DEBUG -#define THREADMARK -#endif /* DEBUG */ - -#ifdef THREADMARK -#include "prthread.h" -#endif /* THREADMARK */ - -#if defined(XP_UNIX) || defined(XP_MAC) -#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; - -typedef struct threadmark_arena_str { - PLArenaPool arena; - PRUint32 magic; - PRThread *marking_thread; - threadmark_mark *first_mark; -} threadmark_arena; - -#define THREADMARK_MAGIC 0xB8AC9BDD /* In honor of nelsonb */ -#endif /* THREADMARK */ - -/* 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; -} - -#ifdef XP_MAC -char * -PORT_Strdup(const char *cp) -{ - size_t len = PORT_Strlen(cp); - char *buf; - - buf = (char *)PORT_Alloc(len+1); - if (buf == NULL) return; - - PORT_Memcpy(buf,cp,len+1); - return buf; -} -#endif - - -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); - } -} - -void -PORT_SetError(int value) -{ - PR_SetError(value, 0); - return; -} - -int -PORT_GetError(void) -{ - return(PR_GetError()); -} - -/********************* Arena code follows *****************************/ - -PRMonitor * arenaMonitor; - -static void -getArenaLock(void) -{ - if (!arenaMonitor) { - nss_InitMonitor(&arenaMonitor); - } - if (arenaMonitor) - PR_EnterMonitor(arenaMonitor); -} - -static void -releaseArenaLock(void) -{ - if (arenaMonitor) - PR_ExitMonitor(arenaMonitor); -} - -PLArenaPool * -PORT_NewArena(unsigned long chunksize) -{ - PLArenaPool *arena; - - getArenaLock(); -#ifdef THREADMARK - { - threadmark_arena *tarena = (threadmark_arena *) - PORT_ZAlloc(sizeof(threadmark_arena)); - if( (threadmark_arena *)NULL != tarena ) { - arena = &tarena->arena; - tarena->magic = THREADMARK_MAGIC; - } else { - arena = (PLArenaPool *)NULL; - } - } -#else /* THREADMARK */ - arena = (PLArenaPool*)PORT_ZAlloc(sizeof(PLArenaPool)); -#endif /* THREADMARK */ - if ( arena != NULL ) { - PL_InitArenaPool(arena, "security", chunksize, sizeof(double)); - } - releaseArenaLock(); - return(arena); -} - -void * -PORT_ArenaAlloc(PLArenaPool *arena, size_t size) -{ - void *p; - - getArenaLock(); -#ifdef THREADMARK - { - /* Is it one of ours? Assume so and check the magic */ - threadmark_arena *tarena = (threadmark_arena *)arena; - if( THREADMARK_MAGIC == tarena->magic ) { - /* Most likely one of ours. Is there a thread id? */ - if( (PRThread *)NULL != tarena->marking_thread ) { - /* Yes. Has this arena been marked by this thread? */ - if( tarena->marking_thread == PR_GetCurrentThread() ) { - /* Yup. Everything's okay. */ - ; - } else { - /* Nope. BZZT! error */ - releaseArenaLock(); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return (void *)NULL; - } - } /* tid != null */ - } /* tarena */ - } /* scope */ -#endif /* THREADMARK */ - - PL_ARENA_ALLOCATE(p, arena, size); - releaseArenaLock(); - if (p == NULL) { - ++port_allocFailures; - PORT_SetError(SEC_ERROR_NO_MEMORY); - } - - return(p); -} - -void * -PORT_ArenaZAlloc(PLArenaPool *arena, size_t size) -{ - void *p; - - getArenaLock(); -#ifdef THREADMARK - { - /* Is it one of ours? Assume so and check the magic */ - threadmark_arena *tarena = (threadmark_arena *)arena; - if( THREADMARK_MAGIC == tarena->magic ) { - /* Most likely one of ours. Is there a thread id? */ - if( (PRThread *)NULL != tarena->marking_thread ) { - /* Yes. Has this arena been marked by this thread? */ - if( tarena->marking_thread == PR_GetCurrentThread() ) { - /* Yup. Everything's okay. */ - ; - } else { - /* No, it was a different thread BZZT! error */ - releaseArenaLock(); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return (void *)NULL; - } - } /* tid != null */ - } /* tarena */ - } /* scope */ -#endif /* THREADMARK */ - - PL_ARENA_ALLOCATE(p, arena, size); - releaseArenaLock(); - if (p == NULL) { - ++port_allocFailures; - PORT_SetError(SEC_ERROR_NO_MEMORY); - } else { - PORT_Memset(p, 0, size); - } - - return(p); -} - -/* XXX - need to zeroize!! - jsw */ -void -PORT_FreeArena(PLArenaPool *arena, PRBool zero) -{ - getArenaLock(); - PL_FinishArenaPool(arena); - PORT_Free(arena); - releaseArenaLock(); -} - -void * -PORT_ArenaGrow(PLArenaPool *arena, void *ptr, size_t oldsize, size_t newsize) -{ - PORT_Assert(newsize >= oldsize); - - getArenaLock(); - /* Do we do a THREADMARK check here? */ - PL_ARENA_GROW(ptr, arena, oldsize, ( newsize - oldsize ) ); - releaseArenaLock(); - - return(ptr); -} - -void * -PORT_ArenaMark(PLArenaPool *arena) -{ - void * result; - - getArenaLock(); -#ifdef THREADMARK - { - threadmark_mark *tm, **pw; - - threadmark_arena *tarena = (threadmark_arena *)arena; - if( THREADMARK_MAGIC == tarena->magic ) { - /* one of ours */ - if( (PRThread *)NULL == tarena->marking_thread ) { - /* First mark */ - tarena->marking_thread = PR_GetCurrentThread(); - } else { - if( PR_GetCurrentThread() != tarena->marking_thread ) { - releaseArenaLock(); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return (void *)NULL; - } - } - - result = PL_ARENA_MARK(arena); - PL_ARENA_ALLOCATE(tm, arena, sizeof(threadmark_mark)); - if( (threadmark_mark *)NULL == tm ) { - releaseArenaLock(); - PORT_SetError(SEC_ERROR_NO_MEMORY); - return (void *)NULL; - } - - tm->mark = result; - tm->next = (threadmark_mark *)NULL; - - pw = &tarena->first_mark; - while( (threadmark_mark *)NULL != *pw ) { - pw = &(*pw)->next; - } - - *pw = tm; - } else { - /* a "pure" NSPR arena */ - result = PL_ARENA_MARK(arena); - } - } -#else /* THREADMARK */ - result = PL_ARENA_MARK(arena); -#endif /* THREADMARK */ - releaseArenaLock(); - return result; -} - -void -PORT_ArenaRelease(PLArenaPool *arena, void *mark) -{ - getArenaLock(); -#ifdef THREADMARK - { - threadmark_arena *tarena = (threadmark_arena *)arena; - if( THREADMARK_MAGIC == tarena->magic ) { - threadmark_mark **pw, *tm; - - if( PR_GetCurrentThread() != tarena->marking_thread ) { - releaseArenaLock(); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return /* no error indication available */ ; - } - - pw = &tarena->first_mark; - while( ((threadmark_mark *)NULL != *pw) && (mark != (*pw)->mark) ) { - pw = &(*pw)->next; - } - - if( (threadmark_mark *)NULL == *pw ) { - /* bad mark */ - releaseArenaLock(); - 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( (threadmark_mark *)NULL == tarena->first_mark ) { - tarena->marking_thread = (PRThread *)NULL; - } - } else { - PL_ARENA_RELEASE(arena, mark); - } - } -#else /* THREADMARK */ - PL_ARENA_RELEASE(arena, mark); -#endif /* THREADMARK */ - releaseArenaLock(); -} - -void -PORT_ArenaUnmark(PLArenaPool *arena, void *mark) -{ -#ifdef THREADMARK - getArenaLock(); - { - threadmark_arena *tarena = (threadmark_arena *)arena; - if( THREADMARK_MAGIC == tarena->magic ) { - threadmark_mark **pw, *tm; - - if( PR_GetCurrentThread() != tarena->marking_thread ) { - releaseArenaLock(); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return /* no error indication available */ ; - } - - pw = &tarena->first_mark; - while( ((threadmark_mark *)NULL != *pw) && (mark != (*pw)->mark) ) { - pw = &(*pw)->next; - } - - if( (threadmark_mark *)NULL == *pw ) { - /* bad mark */ - releaseArenaLock(); - PORT_SetError(SEC_ERROR_NO_MEMORY); - PORT_Assert(0); - return /* no error indication available */ ; - } - - tm = *pw; - *pw = (threadmark_mark *)NULL; - - if( (threadmark_mark *)NULL == tarena->first_mark ) { - tarena->marking_thread = (PRThread *)NULL; - } - } else { - PL_ARENA_RELEASE(arena, mark); - } - } - releaseArenaLock(); -#endif /* THREADMARK */ -} - -char * -PORT_ArenaStrdup(PLArenaPool *arena, char *str) { - int len = PORT_Strlen(str)+1; - char *newstr; - - getArenaLock(); - newstr = (char*)PORT_ArenaAlloc(arena,len); - releaseArenaLock(); - 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) -{ - SECStatus result = SECSuccess; -#ifdef _WIN32 - PRBool setOK; - - setOK = SetEnvironmentVariable(envVarName, envValue); - if (!setOK) { - SET_ERROR_CODE - result = SECFailure; - } -#elif defined(XP_MAC) - result = SECFailure; -#else - char * encoded; - int putEnvFailed; - - 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); - } -#endif - return result; -} - |