Example #1
0
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;
}
RTDECL(uint32_t) RTEnvCountEx(RTENV hEnv)
{
    PRTENVINTERNAL pIntEnv = hEnv;
    AssertPtrReturn(pIntEnv, UINT32_MAX);
    AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, UINT32_MAX);

    RTENV_LOCK(pIntEnv);
    uint32_t cVars = (uint32_t)pIntEnv->cVars;
    RTENV_UNLOCK(pIntEnv);

    return cVars;
}
Example #3
0
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;

}
RTDECL(bool) RTEnvExistEx(RTENV Env, const char *pszVar)
{
    AssertPtrReturn(pszVar, false);

    bool fExists = false;
    if (Env == RTENV_DEFAULT)
    {
#ifdef RTENV_IMPLEMENTS_UTF8_DEFAULT_ENV_API
        fExists = RTEnvExistsUtf8(pszVar);
#else
        /*
         * 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))
        {
            fExists = RTEnvExist(pszVarOtherCP);
            RTStrFree(pszVarOtherCP);
        }
#endif
    }
    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 (!pIntEnv->pfnCompare(pIntEnv->papszEnv[iVar], pszVar, cchVar))
            {
                if (pIntEnv->papszEnv[iVar][cchVar] == '=')
                {
                    fExists = true;
                    break;
                }
                if (pIntEnv->papszEnv[iVar][cchVar] == '\0')
                    break;
            }

        RTENV_UNLOCK(pIntEnv);
    }
    return fExists;
}
RTDECL(int) RTEnvGetByIndexEx(RTENV hEnv, uint32_t iVar, char *pszVar, size_t cbVar, char *pszValue, size_t cbValue)
{
    PRTENVINTERNAL pIntEnv = hEnv;
    AssertPtrReturn(pIntEnv, UINT32_MAX);
    AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, UINT32_MAX);
    if (cbVar)
        AssertPtrReturn(pszVar, VERR_INVALID_POINTER);
    if (cbValue)
        AssertPtrReturn(pszValue, VERR_INVALID_POINTER);

    RTENV_LOCK(pIntEnv);

    int rc;
    if (iVar < pIntEnv->cVars)
    {
        const char *pszSrcVar   = pIntEnv->papszEnv[iVar];
        const char *pszSrcValue = strchr(pszSrcVar, '=');
        bool        fHasEqual   = pszSrcValue != NULL;
        if (pszSrcValue)
        {
            pszSrcValue++;
            rc = VINF_SUCCESS;
        }
        else
        {
            pszSrcValue = strchr(pszSrcVar, '\0');
            rc = VINF_ENV_VAR_UNSET;
        }
        if (cbVar)
        {
            int rc2 = RTStrCopyEx(pszVar, cbVar, pszSrcVar, pszSrcValue - pszSrcVar - fHasEqual);
            if (RT_FAILURE(rc2))
                rc = rc2;
        }
        if (cbValue)
        {
            int rc2 = RTStrCopy(pszValue, cbValue, pszSrcValue);
            if (RT_FAILURE(rc2) && RT_SUCCESS(rc))
                rc = rc2;
        }
    }
    else
        rc = VERR_ENV_VAR_NOT_FOUND;

    RTENV_UNLOCK(pIntEnv);

    return rc;
}
RTDECL(int) RTEnvApplyChanges(RTENV hEnvDst, RTENV hEnvChanges)
{
    PRTENVINTERNAL pIntEnvChanges = hEnvChanges;
    AssertPtrReturn(pIntEnvChanges, VERR_INVALID_HANDLE);
    AssertReturn(pIntEnvChanges->u32Magic == RTENV_MAGIC, VERR_INVALID_HANDLE);

    /** @todo lock validator trouble ahead here! */
    RTENV_LOCK(pIntEnvChanges);

    int rc = VINF_SUCCESS;
    for (uint32_t iChange = 0; iChange < pIntEnvChanges->cVars && RT_SUCCESS(rc); iChange++)
        rc = RTEnvPutEx(hEnvDst, pIntEnvChanges->papszEnv[iChange]);

    RTENV_UNLOCK(pIntEnvChanges);

    return rc;
}
RTDECL(const char *) RTEnvGetByIndexRawEx(RTENV hEnv, uint32_t iVar)
{
    PRTENVINTERNAL pIntEnv = hEnv;
    AssertPtrReturn(pIntEnv, NULL);
    AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, NULL);

    RTENV_LOCK(pIntEnv);

    const char *pszRet;
    if (iVar < pIntEnv->cVars)
        pszRet = pIntEnv->papszEnv[iVar];
    else
        pszRet = NULL;

    RTENV_UNLOCK(pIntEnv);

    return pszRet;
}
RTDECL(int) RTEnvReset(RTENV hEnv)
{
    PRTENVINTERNAL pIntEnv = hEnv;
    AssertPtrReturn(pIntEnv, VERR_INVALID_HANDLE);
    AssertReturn(pIntEnv->u32Magic == RTENV_MAGIC, VERR_INVALID_HANDLE);

    RTENV_LOCK(pIntEnv);

    size_t iVar = pIntEnv->cVars;
    pIntEnv->cVars = 0;
    while (iVar-- > 0)
    {
        RTMemFree(pIntEnv->papszEnv[iVar]);
        pIntEnv->papszEnv[iVar] = NULL;
    }

    RTENV_UNLOCK(pIntEnv);
    return VINF_SUCCESS;
}
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;
}
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);
    AssertReturn(strchr(pszVar, '=') == NULL, VERR_ENV_INVALID_VAR_NAME);

    if (pcchActual)
        *pcchActual = 0;
    int rc;
    if (Env == RTENV_DEFAULT)
    {
#ifdef RTENV_IMPLEMENTS_UTF8_DEFAULT_ENV_API
        rc = RTEnvGetUtf8(pszVar, pszValue, cbValue, pcchActual);
#else
        /*
         * 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;
                    }
                    RTStrFree(pszValueUtf8);
                }
            }
            else
                rc = VERR_ENV_VAR_NOT_FOUND;
        }
#endif
    }
    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 (!pIntEnv->pfnCompare(pIntEnv->papszEnv[iVar], pszVar, cchVar))
            {
                if (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;
                }
                if (pIntEnv->papszEnv[iVar][cchVar] == '\0')
                {
                    Assert(pIntEnv->fPutEnvBlock);
                    rc = VERR_ENV_VAR_UNSET;
                    break;
                }
            }

        RTENV_UNLOCK(pIntEnv);
    }
    return rc;
}
RTDECL(int) RTEnvUnsetEx(RTENV Env, const char *pszVar)
{
    AssertPtrReturn(pszVar, VERR_INVALID_POINTER);
    AssertReturn(*pszVar, VERR_INVALID_PARAMETER);
    AssertReturn(strchr(pszVar, '=') == NULL, VERR_ENV_INVALID_VAR_NAME);

    int rc;
    if (Env == RTENV_DEFAULT)
    {
#ifdef RTENV_IMPLEMENTS_UTF8_DEFAULT_ENV_API
        rc = RTEnvUnsetUtf8(pszVar);
#else
        /*
         * 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);
        }
#endif
    }
    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 (    !pIntEnv->pfnCompare(pIntEnv->papszEnv[iVar], pszVar, cchVar)
                &&  (   pIntEnv->papszEnv[iVar][cchVar] == '='
                     || pIntEnv->papszEnv[iVar][cchVar] == '\0') )
            {
                if (!pIntEnv->fPutEnvBlock)
                {
                    RTMemFree(pIntEnv->papszEnv[iVar]);
                    pIntEnv->cVars--;
                    if (pIntEnv->cVars > 0)
                        pIntEnv->papszEnv[iVar] = pIntEnv->papszEnv[pIntEnv->cVars];
                    pIntEnv->papszEnv[pIntEnv->cVars] = NULL;
                }
                else
                {
                    /* Record this unset by keeping the variable without any equal sign. */
                    pIntEnv->papszEnv[iVar][cchVar] = '\0';
                }
                rc = VINF_SUCCESS;
                /* no break, there could be more. */
            }

        /*
         * If this is a change record, we may need to add it.
         */
        if (rc == VINF_ENV_VAR_NOT_FOUND && pIntEnv->fPutEnvBlock)
        {
            char *pszEntry = (char *)RTMemDup(pszVar, cchVar + 1);
            if (pszEntry)
            {
                rc = rtEnvIntAppend(pIntEnv, pszEntry);
                if (RT_SUCCESS(rc))
                    rc = VINF_ENV_VAR_NOT_FOUND;
                else
                    RTMemFree(pszEntry);
            }
            else
                rc = VERR_NO_MEMORY;
        }

        RTENV_UNLOCK(pIntEnv);
    }
    return rc;

}
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);
    AssertReturn(strchr(pszVar, '=') == NULL, VERR_ENV_INVALID_VAR_NAME);

    int rc;
    if (Env == RTENV_DEFAULT)
    {
#ifdef RT_OS_WINDOWS
        rc = RTEnvSetUtf8(pszVar, pszValue);
#else
        /*
         * 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);
        }
#endif
    }
    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 (    !pIntEnv->pfnCompare(pIntEnv->papszEnv[iVar], pszVar, cchVar)
                    &&  (   pIntEnv->papszEnv[iVar][cchVar] == '='
                         || pIntEnv->papszEnv[iVar][cchVar] == '\0') )
                    break;
            if (iVar < pIntEnv->cVars)
            {
                /*
                 * Replace the current entry. Simple.
                 */
                RTMemFree(pIntEnv->papszEnv[iVar]);
                pIntEnv->papszEnv[iVar] = pszEntry;
            }
            else
            {
                /*
                 * New variable, append it.
                 */
                Assert(pIntEnv->cVars == iVar);
                rc = rtEnvIntAppend(pIntEnv, pszEntry);
            }

            RTENV_UNLOCK(pIntEnv);

            if (RT_FAILURE(rc))
                RTMemFree(pszEntry);
        }
        else
            rc = VERR_NO_MEMORY;
    }
    return rc;
}
RTDECL(int) RTEnvClone(PRTENV pEnv, RTENV EnvToClone)
{
    /*
     * Validate input and figure out how many variable to clone and where to get them.
     */
    bool fCaseSensitive = true;
    bool fPutEnvBlock   = false;
    size_t cVars;
    const char * const *papszEnv;
#ifdef RTENV_HAVE_WENVIRON
    PCRTUTF16 const * papwszEnv;
#endif
    PRTENVINTERNAL pIntEnvToClone;
    AssertPtrReturn(pEnv, VERR_INVALID_POINTER);
    if (EnvToClone == RTENV_DEFAULT)
    {
        cVars = 0;
        pIntEnvToClone = NULL;
#ifdef RTENV_HAVE_WENVIRON
        papszEnv  = NULL;
        papwszEnv = (PCRTUTF16 * const)_wenviron;
        if (!papwszEnv)
        {
            _wgetenv(L"Path"); /* Force the CRT to initalize it. */
            papwszEnv = (PCRTUTF16 * const)_wenviron;
        }
        if (papwszEnv)
            while (papwszEnv[cVars])
                cVars++;
#else
        papszEnv = rtEnvDefault();
        if (papszEnv)
            while (papszEnv[cVars])
                cVars++;
#endif

#if defined(RT_OS_OS2) || defined(RT_OS_WINDOWS)
        /* DOS systems was case insensitive.  A prime example is the 'Path'
           variable on windows which turns into the 'PATH' variable. */
        fCaseSensitive = false;
#endif
    }
    else
    {
        pIntEnvToClone = EnvToClone;
        AssertPtrReturn(pIntEnvToClone, VERR_INVALID_HANDLE);
        AssertReturn(pIntEnvToClone->u32Magic == RTENV_MAGIC, VERR_INVALID_HANDLE);
        RTENV_LOCK(pIntEnvToClone);

        fPutEnvBlock = pIntEnvToClone->fPutEnvBlock;
        papszEnv = pIntEnvToClone->papszEnv;
        cVars = pIntEnvToClone->cVars;
    }

    /*
     * Create the duplicate.
     */
    PRTENVINTERNAL pIntEnv;
    int rc = rtEnvCreate(&pIntEnv, cVars + 1 /* NULL */, fCaseSensitive, fPutEnvBlock);
    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. */
            size_t  iDst = 0;
            for (size_t iSrc = 0; iSrc < cVars; iSrc++)
            {
#ifdef RTENV_HAVE_WENVIRON
                int rc2 = RTUtf16ToUtf8(papwszEnv[iSrc], &pIntEnv->papszEnv[iDst]);
#else
                int rc2 = RTStrCurrentCPToUtf8(&pIntEnv->papszEnv[iDst], papszEnv[iSrc]);
#endif
                if (RT_SUCCESS(rc2))
                {
                    /* Make sure it contains an '='. */
                    iDst++;
                    if (strchr(pIntEnv->papszEnv[iDst - 1], '='))
                        continue;
                    rc2 = RTStrAAppend(&pIntEnv->papszEnv[iDst - 1], "=");
                    if (RT_SUCCESS(rc2))
                        continue;
                }
                else if (rc2 == VERR_NO_TRANSLATION)
                {
                    rc = VWRN_ENV_NOT_FULLY_TRANSLATED;
                    continue;
                }

                /* failed fatally. */
                pIntEnv->cVars = iDst;
                RTEnvDestroy(pIntEnv);
                return rc2;
            }
            pIntEnv->cVars = iDst;
        }
        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;
}
Example #14
0
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;
}
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;
}
RTDECL(int) RTEnvQueryUtf8Block(RTENV hEnv, bool fSorted, char **ppszzBlock, size_t *pcbBlock)
{
    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, if requested.
     */
    if (fSorted)
        RTSortApvShell((void **)pIntEnv->papszEnv, pIntEnv->cVars, rtEnvSortCompare, pIntEnv);

    /*
     * Calculate the size. We add one extra terminator just to be on the safe side.
     */
    size_t cbBlock = 2;
    for (size_t iVar = 0; iVar < pIntEnv->cVars; iVar++)
        cbBlock += strlen(pIntEnv->papszEnv[iVar]) + 1;

    if (pcbBlock)
        *pcbBlock = cbBlock - 1;

    /*
     * Allocate memory and copy out the variables.
     */
    char *pszzBlock;
    char *pszz = pszzBlock = (char *)RTMemAlloc(cbBlock);
    if (pszz)
    {
        size_t cbLeft = cbBlock;
        for (size_t iVar = 0; iVar < pIntEnv->cVars; iVar++)
        {
            size_t cb = strlen(pIntEnv->papszEnv[iVar]) + 1;
            AssertBreakStmt(cb + 2 <= cbLeft, rc = VERR_INTERNAL_ERROR_3);
            memcpy(pszz, pIntEnv->papszEnv[iVar], cb);
            pszz   += cb;
            cbLeft -= cb;
        }
        if (RT_SUCCESS(rc))
        {
            pszz[0] = '\0';
            pszz[1] = '\0'; /* The extra one. */
        }
        else
        {
            RTMemFree(pszzBlock);
            pszzBlock = NULL;
        }
    }
    else
        rc = VERR_NO_MEMORY;

    RTENV_UNLOCK(pIntEnv);

    if (hClone != NIL_RTENV)
        RTEnvDestroy(hClone);
    if (RT_SUCCESS(rc))
        *ppszzBlock = pszzBlock;
    return rc;
}
Example #17
0
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. */
            size_t  iDst = 0;
            for (size_t iSrc = 0; iSrc < cVars; iSrc++)
            {
                int rc2 = RTStrCurrentCPToUtf8(&pIntEnv->papszEnv[iDst], papszEnv[iSrc]);
                if (RT_SUCCESS(rc2))
                    iDst++;
                else if (rc2 == VERR_NO_TRANSLATION)
                    rc = VWRN_ENV_NOT_FULLY_TRANSLATED;
                else
                {
                    pIntEnv->cVars = iDst;
                    RTEnvDestroy(pIntEnv);
                    return rc2;
                }
            }
            pIntEnv->cVars = iDst;
        }
        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;
}