libreoffice/tools/source/misc/extendapplicationenvironment.cxx

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 * Copyright 2000, 2010 Oracle and/or its affiliates.
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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#include "precompiled_tools.hxx"
#include "sal/config.h"

#include <stdlib.h>
    // not <cstdlib> as putenv is POSIX-only; setenv instead of putenv would be
    // better but is not supported by Solaris 9 and earlier

#if defined UNX
#include <sys/resource.h>
#include <sys/time.h>
#include <sys/types.h>
#endif

#include "osl/process.h"
#include "osl/thread.h"
#include "rtl/bootstrap.hxx"
#include "rtl/string.hxx"
#include "rtl/textcvt.h"
#include "rtl/ustrbuf.hxx"
#include "rtl/ustring.h"
#include "rtl/ustring.hxx"
#include "sal/types.h"
#include "tools/extendapplicationenvironment.hxx"

namespace tools {

void extendApplicationEnvironment() {
#if defined UNX
    // Try to set RLIMIT_NOFILE as large as possible (failure is harmless):
    rlimit l;
    if (getrlimit(RLIMIT_NOFILE, &l) == 0) {
        l.rlim_cur = l.rlim_max;
        setrlimit(RLIMIT_NOFILE, &l);
    }
#endif

    // Make sure URE_BOOTSTRAP environment variable is set (failure is fatal):
    rtl::OUStringBuffer env;
    env.appendAscii(RTL_CONSTASCII_STRINGPARAM("URE_BOOTSTRAP="));
    rtl::OUString uri;
    if (rtl::Bootstrap::get(
            rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("URE_BOOTSTRAP")), uri))
    {
        if (!uri.matchIgnoreAsciiCaseAsciiL(
                RTL_CONSTASCII_STRINGPARAM("vnd.sun.star.pathname:")))
        {
            uri = rtl::Bootstrap::encode(uri);
        }
        env.append(uri);
    } else {
        if (osl_getExecutableFile(&uri.pData) != osl_Process_E_None) {
            abort();
        }
        sal_Int32 i = uri.lastIndexOf('/');
        if (i >= 0) {
            uri = uri.copy(0, i + 1);
        }
        env.append(rtl::Bootstrap::encode(uri));
        env.appendAscii(
            RTL_CONSTASCII_STRINGPARAM(SAL_CONFIGFILE("fundamental")));
    }
    rtl::OString s;
    if (!env.makeStringAndClear().convertToString(
            &s, osl_getThreadTextEncoding(),
            RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR
            | RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR))
    {
        abort();
    }
    rtl_string_acquire(s.pData); // argument to putenv must leak
    if (putenv(const_cast< char * >(s.getStr())) != 0) {
        abort();
    }
}

}