env-generic.cpp revision 967369edbf395abf6877ef78792ac81ffde99be7
/* $Id$ */
/** @file
* IPRT - Environment, Generic.
*/
/*
* Copyright (C) 2006-2007 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include <iprt/env.h>
#include "internal/iprt.h"
#include <iprt/assert.h>
#include <iprt/alloc.h>
#include <iprt/alloca.h>
#include <iprt/string.h>
#include <iprt/sort.h>
#include <iprt/err.h>
#include "internal/magics.h"
#include <stdlib.h>
#if !defined(RT_OS_WINDOWS)
# include <unistd.h>
#endif
#ifdef RT_OS_DARWIN
# include <crt_externs.h>
#endif
#if defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD) || defined(RT_OS_NETBSD) || defined(RT_OS_OPENBSD)
RT_C_DECLS_BEGIN
extern char **environ;
RT_C_DECLS_END
#endif
/*******************************************************************************
* Defined Constants And Macros *
*******************************************************************************/
/** Macro that unlocks the specified environment block. */
#define RTENV_LOCK(pEnvInt) do { } while (0)
/** Macro that unlocks the specified environment block. */
#define RTENV_UNLOCK(pEnvInt) do { } while (0)
/*******************************************************************************
* Structures and Typedefs *
*******************************************************************************/
/**
* The internal representation of a (non-default) environment.
*/
typedef struct RTENVINTERNAL
{
/** Magic value . */
uint32_t u32Magic;
/** Number of variables in the array.
* This does not include the terminating NULL entry. */
size_t cVars;
/** Capacity (allocated size) of the array.
* This includes space for the terminating NULL element (for compatibility
* with the C library), so that c <= cCapacity - 1. */
size_t cAllocated;
/** Array of environment variables. */
char **papszEnv;
/** Array of environment variables in the process CP.
* This get (re-)constructed when RTEnvGetExecEnvP method is called. */
char **papszEnvOtherCP;
} RTENVINTERNAL, *PRTENVINTERNAL;
/** The allocation granularity of the RTENVINTERNAL::papszEnv memory. */
#define RTENV_GROW_SIZE 16
/**
* Internal worker that resolves the pointer to the default
* process environment. (environ)
*
* @returns Pointer to the default environment.
* This may be NULL.
*/
static const char * const *rtEnvDefault(void)
{
#ifdef RT_OS_DARWIN
return *(_NSGetEnviron());
#elif defined(RT_OS_L4)
/* So far, our L4 libraries do not include environment support. */
return NULL;
#else
return environ;
#endif
}
/**
* Internal worker that creates an environment handle with a specified capacity.
*
* @returns IPRT status code.
* @param ppIntEnv Where to store the result.
* @param cAllocated The initial array size.
*/
static int rtEnvCreate(PRTENVINTERNAL *ppIntEnv, size_t cAllocated)
{
/*
* Allocate environment handle.
*/
PRTENVINTERNAL pIntEnv = (PRTENVINTERNAL)RTMemAlloc(sizeof(*pIntEnv));
if (pIntEnv)
{
/*
* Pre-allocate the variable array.
*/
pIntEnv->u32Magic = RTENV_MAGIC;
pIntEnv->papszEnvOtherCP = NULL;
pIntEnv->cVars = 0;
pIntEnv->cAllocated = RT_ALIGN_Z(RT_MAX(cAllocated, RTENV_GROW_SIZE), RTENV_GROW_SIZE);
pIntEnv->papszEnv = (char **)RTMemAllocZ(sizeof(pIntEnv->papszEnv[0]) * pIntEnv->cAllocated);
if (pIntEnv->papszEnv)
{
*ppIntEnv = pIntEnv;
return VINF_SUCCESS;
}
RTMemFree(pIntEnv);
}
return VERR_NO_MEMORY;
}
RTDECL(int) RTEnvCreate(PRTENV pEnv)
{
AssertPtrReturn(pEnv, VERR_INVALID_POINTER);
return rtEnvCreate(pEnv, RTENV_GROW_SIZE);
}
RT_EXPORT_SYMBOL(RTEnvCreate);
RTDECL(int) RTEnvDestroy(RTENV Env)
{
/*
* Ignore NIL_RTENV and validate input.
*/
if ( Env == NIL_RTENV
|| Env == RTENV_DEFAULT)
return VINF_SUCCESS;
PRTENVINTERNAL pIntEnv = Env;
AssertPtrReturn(pIntEnv, VERR_INVALID_HANDLE);
AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, VERR_INVALID_HANDLE);
/*
* Do the cleanup.
*/
RTENV_LOCK(pIntEnv);
pIntEnv->u32Magic++;
size_t iVar = pIntEnv->cVars;
while (iVar-- > 0)
RTStrFree(pIntEnv->papszEnv[iVar]);
RTMemFree(pIntEnv->papszEnv);
pIntEnv->papszEnv = NULL;
if (pIntEnv->papszEnvOtherCP)
{
for (iVar = 0; pIntEnv->papszEnvOtherCP[iVar]; iVar++)
{
RTStrFree(pIntEnv->papszEnvOtherCP[iVar]);
pIntEnv->papszEnvOtherCP[iVar] = NULL;
}
RTMemFree(pIntEnv->papszEnvOtherCP);
pIntEnv->papszEnvOtherCP = NULL;
}
RTENV_UNLOCK(pIntEnv);
/*RTCritSectDelete(&pIntEnv->CritSect) */
RTMemFree(pIntEnv);
return VINF_SUCCESS;
}
RT_EXPORT_SYMBOL(RTEnvDestroy);
RTDECL(int) RTEnvClone(PRTENV pEnv, RTENV EnvToClone)
{
/*
* Validate input and figure out how many variable to clone and where to get them.
*/
size_t cVars;
const char * const *papszEnv;
PRTENVINTERNAL pIntEnvToClone;
AssertPtrReturn(pEnv, VERR_INVALID_POINTER);
if (EnvToClone == RTENV_DEFAULT)
{
pIntEnvToClone = NULL;
papszEnv = rtEnvDefault();
cVars = 0;
if (papszEnv)
while (papszEnv[cVars])
cVars++;
}
else
{
pIntEnvToClone = EnvToClone;
AssertPtrReturn(pIntEnvToClone, VERR_INVALID_HANDLE);
AssertReturn(pIntEnvToClone->u32Magic == RTENV_MAGIC, VERR_INVALID_HANDLE);
RTENV_LOCK(pIntEnvToClone);
papszEnv = pIntEnvToClone->papszEnv;
cVars = pIntEnvToClone->cVars;
}
/*
* Create the duplicate.
*/
PRTENVINTERNAL pIntEnv;
int rc = rtEnvCreate(&pIntEnv, cVars + 1 /* NULL */);
if (RT_SUCCESS(rc))
{
pIntEnv->cVars = cVars;
pIntEnv->papszEnv[pIntEnv->cVars] = NULL;
if (EnvToClone == RTENV_DEFAULT)
{
/* ASSUMES the default environment is in the current codepage. */
for (size_t iVar = 0; iVar < cVars; iVar++)
{
int rc2 = RTStrCurrentCPToUtf8(&pIntEnv->papszEnv[iVar], papszEnv[iVar]);
if (RT_FAILURE(rc2))
{
pIntEnv->cVars = iVar;
RTEnvDestroy(pIntEnv);
return rc2;
}
}
}
else
{
for (size_t iVar = 0; iVar < cVars; iVar++)
{
char *pszVar = RTStrDup(papszEnv[iVar]);
if (RT_UNLIKELY(!pszVar))
{
RTENV_UNLOCK(pIntEnvToClone);
pIntEnv->cVars = iVar;
RTEnvDestroy(pIntEnv);
return VERR_NO_STR_MEMORY;
}
pIntEnv->papszEnv[iVar] = pszVar;
}
}
/* done */
*pEnv = pIntEnv;
}
if (pIntEnvToClone)
RTENV_UNLOCK(pIntEnvToClone);
return rc;
}
RT_EXPORT_SYMBOL(RTEnvClone);
RTDECL(int) RTEnvPutEx(RTENV Env, const char *pszVarEqualValue)
{
int rc;
AssertPtrReturn(pszVarEqualValue, VERR_INVALID_POINTER);
const char *pszEq = strchr(pszVarEqualValue, '=');
if (!pszEq)
rc = RTEnvUnsetEx(Env, pszVarEqualValue);
else
{
/*
* Make a copy of the variable name so we can terminate it
* properly and then pass the request on to RTEnvSetEx.
*/
const char *pszValue = pszEq + 1;
size_t cchVar = pszEq - pszVarEqualValue;
Assert(cchVar < 1024);
char *pszVar = (char *)alloca(cchVar + 1);
memcpy(pszVar, pszVarEqualValue, cchVar);
pszVar[cchVar] = '\0';
rc = RTEnvSetEx(Env, pszVar, pszValue);
}
return rc;
}
RT_EXPORT_SYMBOL(RTEnvPutEx);
RTDECL(int) RTEnvSetEx(RTENV Env, const char *pszVar, const char *pszValue)
{
AssertPtrReturn(pszVar, VERR_INVALID_POINTER);
AssertReturn(*pszVar, VERR_INVALID_PARAMETER);
AssertPtrReturn(pszValue, VERR_INVALID_POINTER);
int rc;
if (Env == RTENV_DEFAULT)
{
/*
* Since RTEnvPut isn't UTF-8 clean and actually expects the strings
* to be in the current code page (codeset), we'll do the necessary
* conversions here.
*/
char *pszVarOtherCP;
rc = RTStrUtf8ToCurrentCP(&pszVarOtherCP, pszVar);
if (RT_SUCCESS(rc))
{
char *pszValueOtherCP;
rc = RTStrUtf8ToCurrentCP(&pszValueOtherCP, pszValue);
if (RT_SUCCESS(rc))
{
rc = RTEnvSet(pszVarOtherCP, pszValueOtherCP);
RTStrFree(pszValueOtherCP);
}
RTStrFree(pszVarOtherCP);
}
}
else
{
PRTENVINTERNAL pIntEnv = Env;
AssertPtrReturn(pIntEnv, VERR_INVALID_HANDLE);
AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, VERR_INVALID_HANDLE);
/*
* Create the variable string.
*/
const size_t cchVar = strlen(pszVar);
const size_t cchValue = strlen(pszValue);
char *pszEntry = (char *)RTMemAlloc(cchVar + cchValue + 2);
if (pszEntry)
{
memcpy(pszEntry, pszVar, cchVar);
pszEntry[cchVar] = '=';
memcpy(&pszEntry[cchVar + 1], pszValue, cchValue + 1);
RTENV_LOCK(pIntEnv);
/*
* Find the location of the variable. (iVar = cVars if new)
*/
rc = VINF_SUCCESS;
size_t iVar;
for (iVar = 0; iVar < pIntEnv->cVars; iVar++)
if ( !strncmp(pIntEnv->papszEnv[iVar], pszVar, cchVar)
&& pIntEnv->papszEnv[iVar][cchVar] == '=')
break;
if (iVar < pIntEnv->cVars)
{
/*
* Replace the current entry. Simple.
*/
RTMemFree(pIntEnv->papszEnv[iVar]);
pIntEnv->papszEnv[iVar] = pszEntry;
}
else
{
/*
* Adding a new variable. Resize the array if required
* and then insert the new value at the end.
*/
if (pIntEnv->cVars + 2 > pIntEnv->cAllocated)
{
void *pvNew = RTMemRealloc(pIntEnv->papszEnv, sizeof(char *) * (pIntEnv->cAllocated + RTENV_GROW_SIZE));
if (!pvNew)
rc = VERR_NO_MEMORY;
else
{
pIntEnv->papszEnv = (char **)pvNew;
pIntEnv->cAllocated += RTENV_GROW_SIZE;
for (size_t iNewVar = pIntEnv->cVars; iNewVar < pIntEnv->cAllocated; iNewVar++)
pIntEnv->papszEnv[iNewVar] = NULL;
}
}
if (RT_SUCCESS(rc))
{
pIntEnv->papszEnv[iVar] = pszEntry;
pIntEnv->papszEnv[iVar + 1] = NULL; /* this isn't really necessary, but doesn't hurt. */
pIntEnv->cVars++;
Assert(pIntEnv->cVars == iVar + 1);
}
}
RTENV_UNLOCK(pIntEnv);
if (RT_FAILURE(rc))
RTMemFree(pszEntry);
}
else
rc = VERR_NO_MEMORY;
}
return rc;
}
RT_EXPORT_SYMBOL(RTEnvSetEx);
RTDECL(int) RTEnvUnsetEx(RTENV Env, const char *pszVar)
{
AssertPtrReturn(pszVar, VERR_INVALID_POINTER);
AssertReturn(*pszVar, VERR_INVALID_PARAMETER);
int rc;
if (Env == RTENV_DEFAULT)
{
/*
* Since RTEnvUnset isn't UTF-8 clean and actually expects the strings
* to be in the current code page (codeset), we'll do the necessary
* conversions here.
*/
char *pszVarOtherCP;
rc = RTStrUtf8ToCurrentCP(&pszVarOtherCP, pszVar);
if (RT_SUCCESS(rc))
{
rc = RTEnvUnset(pszVarOtherCP);
RTStrFree(pszVarOtherCP);
}
}
else
{
PRTENVINTERNAL pIntEnv = Env;
AssertPtrReturn(pIntEnv, VERR_INVALID_HANDLE);
AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, VERR_INVALID_HANDLE);
RTENV_LOCK(pIntEnv);
/*
* Remove all variable by the given name.
*/
rc = VINF_ENV_VAR_NOT_FOUND;
const size_t cchVar = strlen(pszVar);
size_t iVar;
for (iVar = 0; iVar < pIntEnv->cVars; iVar++)
if ( !strncmp(pIntEnv->papszEnv[iVar], pszVar, cchVar)
&& pIntEnv->papszEnv[iVar][cchVar] == '=')
{
RTMemFree(pIntEnv->papszEnv[iVar]);
pIntEnv->cVars--;
if (pIntEnv->cVars > 0)
pIntEnv->papszEnv[iVar] = pIntEnv->papszEnv[pIntEnv->cVars];
pIntEnv->papszEnv[pIntEnv->cVars] = NULL;
rc = VINF_SUCCESS;
/* no break, there could be more. */
}
RTENV_UNLOCK(pIntEnv);
}
return rc;
}
RT_EXPORT_SYMBOL(RTEnvUnsetEx);
RTDECL(int) RTEnvGetEx(RTENV Env, const char *pszVar, char *pszValue, size_t cbValue, size_t *pcchActual)
{
AssertPtrReturn(pszVar, VERR_INVALID_POINTER);
AssertPtrNullReturn(pszValue, VERR_INVALID_POINTER);
AssertPtrNullReturn(pcchActual, VERR_INVALID_POINTER);
AssertReturn(pcchActual || (pszValue && cbValue), VERR_INVALID_PARAMETER);
if (pcchActual)
*pcchActual = 0;
int rc;
if (Env == RTENV_DEFAULT)
{
/*
* Since RTEnvGet isn't UTF-8 clean and actually expects the strings
* to be in the current code page (codeset), we'll do the necessary
* conversions here.
*/
char *pszVarOtherCP;
rc = RTStrUtf8ToCurrentCP(&pszVarOtherCP, pszVar);
if (RT_SUCCESS(rc))
{
const char *pszValueOtherCP = RTEnvGet(pszVarOtherCP);
RTStrFree(pszVarOtherCP);
if (pszValueOtherCP)
{
char *pszValueUtf8;
rc = RTStrCurrentCPToUtf8(&pszValueUtf8, pszValueOtherCP);
if (RT_SUCCESS(rc))
{
rc = VINF_SUCCESS;
size_t cch = strlen(pszValueUtf8);
if (pcchActual)
*pcchActual = cch;
if (pszValue && cbValue)
{
if (cch < cbValue)
memcpy(pszValue, pszValueUtf8, cch + 1);
else
rc = VERR_BUFFER_OVERFLOW;
}
}
}
else
rc = VERR_ENV_VAR_NOT_FOUND;
}
}
else
{
PRTENVINTERNAL pIntEnv = Env;
AssertPtrReturn(pIntEnv, VERR_INVALID_HANDLE);
AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, VERR_INVALID_HANDLE);
RTENV_LOCK(pIntEnv);
/*
* Locate the first variable and return it to the caller.
*/
rc = VERR_ENV_VAR_NOT_FOUND;
const size_t cchVar = strlen(pszVar);
size_t iVar;
for (iVar = 0; iVar < pIntEnv->cVars; iVar++)
if ( !strncmp(pIntEnv->papszEnv[iVar], pszVar, cchVar)
&& pIntEnv->papszEnv[iVar][cchVar] == '=')
{
rc = VINF_SUCCESS;
const char *pszValueOrg = pIntEnv->papszEnv[iVar] + cchVar + 1;
size_t cch = strlen(pszValueOrg);
if (pcchActual)
*pcchActual = cch;
if (pszValue && cbValue)
{
if (cch < cbValue)
memcpy(pszValue, pszValueOrg, cch + 1);
else
rc = VERR_BUFFER_OVERFLOW;
}
break;
}
RTENV_UNLOCK(pIntEnv);
}
return rc;
}
RT_EXPORT_SYMBOL(RTEnvGetEx);
RTDECL(bool) RTEnvExistEx(RTENV Env, const char *pszVar)
{
AssertPtrReturn(pszVar, false);
bool fExist = false;
if (Env == RTENV_DEFAULT)
{
/*
* Since RTEnvExist isn't UTF-8 clean and actually expects the strings
* to be in the current code page (codeset), we'll do the necessary
* conversions here.
*/
char *pszVarOtherCP;
int rc = RTStrUtf8ToCurrentCP(&pszVarOtherCP, pszVar);
if (RT_SUCCESS(rc))
{
fExist = RTEnvExist(pszVarOtherCP);
RTStrFree(pszVarOtherCP);
}
}
else
{
PRTENVINTERNAL pIntEnv = Env;
AssertPtrReturn(pIntEnv, false);
AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, false);
RTENV_LOCK(pIntEnv);
/*
* Simple search.
*/
const size_t cchVar = strlen(pszVar);
for (size_t iVar = 0; iVar < pIntEnv->cVars; iVar++)
if ( !strncmp(pIntEnv->papszEnv[iVar], pszVar, cchVar)
&& pIntEnv->papszEnv[iVar][cchVar] == '=')
{
fExist = true;
break;
}
RTENV_UNLOCK(pIntEnv);
}
return fExist;
}
RT_EXPORT_SYMBOL(RTEnvExistEx);
RTDECL(char const * const *) RTEnvGetExecEnvP(RTENV Env)
{
const char * const *papszRet;
if (Env == RTENV_DEFAULT)
{
papszRet = rtEnvDefault();
if (!papszRet)
{
static const char * const s_papszDummy[2] = { NULL, NULL };
papszRet = &s_papszDummy[0];
}
}
else
{
PRTENVINTERNAL pIntEnv = Env;
AssertPtrReturn(pIntEnv, NULL);
AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, NULL);
RTENV_LOCK(pIntEnv);
/*
* Free any old envp.
*/
if (pIntEnv->papszEnvOtherCP)
{
for (size_t iVar = 0; pIntEnv->papszEnvOtherCP[iVar]; iVar++)
{
RTStrFree(pIntEnv->papszEnvOtherCP[iVar]);
pIntEnv->papszEnvOtherCP[iVar] = NULL;
}
RTMemFree(pIntEnv->papszEnvOtherCP);
pIntEnv->papszEnvOtherCP = NULL;
}
/*
* Construct a new envp with the strings in the process code set.
*/
char **papsz;
papszRet = pIntEnv->papszEnvOtherCP = papsz = (char **)RTMemAlloc(sizeof(char *) * (pIntEnv->cVars + 1));
if (papsz)
{
papsz[pIntEnv->cVars] = NULL;
for (size_t iVar = 0; iVar < pIntEnv->cVars; iVar++)
{
int rc = RTStrUtf8ToCurrentCP(&papsz[iVar], pIntEnv->papszEnv[iVar]);
if (RT_FAILURE(rc))
{
/* RTEnvDestroy / we cleans up later. */
papsz[iVar] = NULL;
AssertRC(rc);
papszRet = NULL;
break;
}
}
}
RTENV_UNLOCK(pIntEnv);
}
return papszRet;
}
RT_EXPORT_SYMBOL(RTEnvGetExecEnvP);
/**
* RTSort callback for comparing two environment varibles.
*
* @returns -1, 0, 1. See PFNRTSORTCMP.
* @param pvElement1 Variable 1.
* @param pvElement2 Variable 2.
* @param pvUser Ignored.
*/
DECLCALLBACK(int) rtEnvSortCompare(const void *pvElement1, const void *pvElement2, void *pvUser)
{
NOREF(pvUser);
int iDiff = strcmp((const char *)pvElement1, (const char *)pvElement2);
if (iDiff < 0)
iDiff = -1;
else if (iDiff > 0)
iDiff = 1;
return iDiff;
}
RTDECL(int) RTEnvQueryUtf16Block(RTENV hEnv, PRTUTF16 *ppwszzBlock)
{
RTENV hClone = NIL_RTENV;
PRTENVINTERNAL pIntEnv;
int rc;
/*
* Validate / simplify input.
*/
if (hEnv == RTENV_DEFAULT)
{
rc = RTEnvClone(&hClone, RTENV_DEFAULT);
if (RT_FAILURE(rc))
return rc;
pIntEnv = hClone;
}
else
{
pIntEnv = hEnv;
AssertPtrReturn(pIntEnv, VERR_INVALID_HANDLE);
AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, VERR_INVALID_HANDLE);
rc = VINF_SUCCESS;
}
RTENV_LOCK(pIntEnv);
/*
* Sort it first.
*/
RTSortApvShell((void **)pIntEnv->papszEnv, pIntEnv->cVars, rtEnvSortCompare, pIntEnv);
/*
* Calculate the size.
*/
size_t cwc;
size_t cwcTotal = 2;
for (size_t iVar = 0; iVar < pIntEnv->cVars; iVar++)
{
rc = RTStrCalcUtf16LenEx(pIntEnv->papszEnv[iVar], RTSTR_MAX, &cwc);
AssertRCBreak(rc);
cwcTotal += cwc + 1;
}
PRTUTF16 pwszzBlock = NULL;
if (RT_SUCCESS(rc))
{
/*
* Perform the conversion.
*/
PRTUTF16 pwszz = pwszzBlock = (PRTUTF16)RTMemAlloc(cwcTotal * sizeof(RTUTF16));
if (pwszz)
{
size_t cwcLeft = cwcTotal;
for (size_t iVar = 0; iVar < pIntEnv->cVars; iVar++)
{
rc = RTStrToUtf16Ex(pIntEnv->papszEnv[iVar], RTSTR_MAX,
&pwszz, cwcTotal - (pwszz - pwszzBlock), &cwc);
AssertRCBreak(rc);
pwszz += cwc + 1;
cwcLeft -= cwc + 1;
AssertBreakStmt(cwcLeft >= 2, rc = VERR_INTERNAL_ERROR_3);
}
AssertStmt(cwcLeft == 2 || RT_FAILURE(rc), rc = VERR_INTERNAL_ERROR_2);
if (RT_SUCCESS(rc))
{
pwszz[0] = '\0';
pwszz[1] = '\0';
}
else
{
RTMemFree(pwszzBlock);
pwszzBlock = NULL;
}
}
else
rc = VERR_NO_MEMORY;
}
RTENV_UNLOCK(pIntEnv);
if (hClone != NIL_RTENV)
RTEnvDestroy(hClone);
if (RT_SUCCESS(rc))
*ppwszzBlock = pwszzBlock;
return rc;
}
RT_EXPORT_SYMBOL(RTEnvGetExecEnvP);
RTDECL(void) RTEnvFreeUtf16Block(PRTUTF16 pwszzBlock)
{
RTMemFree(pwszzBlock);
}
RT_EXPORT_SYMBOL(RTEnvFreeUtf16Block);