C++ PR_snprintf函数代码示例

static const char *
GetUniqueMaiAtkTypeName(PRUint16 interfacesBits)
{
#define MAI_ATK_TYPE_NAME_LEN (30)     /* 10+sizeof(PRUint16)*8/4+1 < 30 */

    static gchar namePrefix[] = "MaiAtkType";   /* size = 10 */
    static gchar name[MAI_ATK_TYPE_NAME_LEN + 1];

    PR_snprintf(name, MAI_ATK_TYPE_NAME_LEN, "%s%x", namePrefix,
                interfacesBits);
    name[MAI_ATK_TYPE_NAME_LEN] = '\0';

    MAI_LOG_DEBUG(("MaiWidget::LastedTypeName=%s\n", name));

    return name;
}

void
ResourceQueue::Dump(const char* aPath)
{
  for (uint32_t i = 0; i < uint32_t(GetSize()); ++i) {
    ResourceItem* item = ResourceAt(i);

    char buf[255];
    PR_snprintf(buf, sizeof(buf), "%s/%08u.bin", aPath, i);
    FILE* fp = fopen(buf, "wb");
    if (!fp) {
      return;
    }
    fwrite(item->mData->Elements(), item->mData->Length(), 1, fp);
    fclose(fp);
  }
}

void aptCoreTrace::LogBytes(eLogLevel eLevel, const char* data, size_t len)
{
    // Extra spaces for Date, PID, EOL etc
#ifdef _WIN32
    static const int nEXTRA = 34;
#else
    static const int nEXTRA = 33;
#endif
    if (!mCanLog) return;

    if (eLevel < mCoreLogLevel) return;
    
	PRTime curTime = PR_Now();
	PRExplodedTime localTime;
	PR_ExplodeTime(curTime, PR_LocalTimeParameters, &localTime);
    int nTotal = len + nEXTRA + strlen(gsLogLevel[eLevel]);

    char *buf = new char[nTotal];
    if (!buf) return;

    PRUint32 nWritten = PR_snprintf(buf, nTotal,
			"%02d:%02d:%02d %02d/%02d/%04d [%6d] [%s] ", // XXX i18n!
			localTime.tm_hour, localTime.tm_min, localTime.tm_sec,
			localTime.tm_month+1, localTime.tm_mday, localTime.tm_year,
			mPid, gsLogLevel[eLevel]);


    memcpy(buf+nWritten, data, len);

    nWritten += len;

#ifdef _WIN32
    buf[nWritten++] = '\r';
#endif
    buf[nWritten++] = '\n';
    
#ifdef _DEBUG
    if (nWritten != nTotal)
    {
        char tmp[50];
        sprintf(tmp, "nW=%d nT=%d\n", nWritten, nTotal);
        mLC->WriteLog(tmp, strlen(tmp));
    }
#endif

    mLC->WriteNewedLog(buf, nWritten);
}

NSS_IMPLEMENT CK_VERSION
nss_dbm_db_get_format_version
(
  nss_dbm_db_t *db
)
{
  CK_VERSION rv;
  DBT k, v;
  int dbrv;
  char buffer[64];

  rv.major = rv.minor = 0;

  k.data = PREFIX_METADATA "FormatVersion";
  k.size = nssUTF8_Size((NSSUTF8 *)k.data, (PRStatus *)NULL);
  (void)memset(&v, 0, sizeof(v));

  /* Locked region */ 
  {
    if( CKR_OK != NSSCKFWMutex_Lock(db->crustylock) ) {
      return rv;
    }

    dbrv = db->db->get(db->db, &k, &v, 0);
    if( dbrv == 0 ) {
      CK_ULONG major = 0, minor = 0;
      (void)PR_sscanf(v.data, "%ld.%ld", &major, &minor);
      rv.major = major;
      rv.minor = minor;
    } else if( dbrv > 0 ) {
      (void)PR_snprintf(buffer, sizeof(buffer), "%ld.%ld", nss_dbm_db_format_version.major,
                        nss_dbm_db_format_version.minor);
      v.data = buffer;
      v.size = nssUTF8_Size((NSSUTF8 *)v.data, (PRStatus *)NULL);
      dbrv = db->db->put(db->db, &k, &v, 0);
      (void)db->db->sync(db->db, 0);
      rv = nss_dbm_db_format_version;
    } else {
      /* No error return.. */
      ;
    }

    (void)NSSCKFWMutex_Unlock(db->crustylock);
  }

  return rv;
}

void nsToolkit::GetInterface()
{
#ifdef DEBUG
  printf("TK-GI\n");
#endif
  if(! cached)
  {
    char portname[64];

    PR_snprintf(portname, sizeof(portname), "event%lx", 
                (long unsigned) mGuiThread);

    eventport = find_port(portname);

    cached = true;
  }
}

static void LOG(const char *fmt, ... )
{
  va_list ap;
  va_start(ap, fmt);
  PRUint32 nb = 0;
  char buf[512];

  nb = PR_snprintf(buf, sizeof(buf), "[%u:%p] ", GetPID(), PR_GetCurrentThread());

  PR_vsnprintf(buf + nb, sizeof(buf) - nb, fmt, ap);
  buf[sizeof(buf) - 1] = '\0';

  fwrite(buf, strlen(buf), 1, stdout);
  fflush(stdout);

  va_end(ap);
}

NS_IMETHODIMP
calDateTime::ToString(nsACString & aResult)
{
    nsAutoCString tzid;
    char buffer[256];

    ensureTimezone();
    mTimezone->GetTzid(tzid);

    uint32_t const length = PR_snprintf(
        buffer, sizeof(buffer), "%04hd/%02hd/%02hd %02hd:%02hd:%02hd %s isDate=%01hd nativeTime=%lld",
        mYear, mMonth + 1, mDay, mHour, mMinute, mSecond,
        tzid.get(), static_cast<int16_t>(mIsDate), mNativeTime);
    if (length != static_cast<uint32_t>(-1))
        aResult.Assign(buffer, length);
    return NS_OK;
}

	SKERR LoadEnvirFromIni(const char * key = NULL)
	{
		static char ENV_INI[] = "sk.ini";
		static char ENV_SECTION[] = "envir";

		SKERR err        = noErr;
		char * homeDir = NULL;
		err = GetValue(SK_HOME_ENVIR_VAR, &homeDir);
		if(err != noErr || !homeDir || 0 == PL_strlen(homeDir))
		{
			return err_notfound;
		}

		char envirFilename[1024];
		PR_snprintf(envirFilename, sizeof envirFilename - 1, "%s/sk.ini", homeDir);
		SKTextFile iniFile;
		err = iniFile.SetFileName(envirFilename);
		if(err != noErr)
		{
			SKError(err_failure, "[SKTextFile::LoadEnvirFromIni] "
				"Failed to set filename, error = %d, envirFilename = %s", err, envirFilename);
		}

		IniParser parser(&iniFile);

		char* pszSection = NULL;
		char* pszName    = NULL;
		char* pszValue   = NULL;
		PRUint32 line = 0;
		while (    (err == noErr)
			&& parser.readIniLine(&pszSection, &pszName, &pszValue, &line))
		{
			if(NULL != pszValue && 0 == strcmp(pszSection, ENV_SECTION) && 
				(NULL == key || 0 == strcmp(key, pszName)) )
			{
				err = SetValue(pszName, pszValue);
				if(err != noErr)
					SKError(err_failure, "[SKTextFile::LoadEnvirFromIni] "
					"Stops parsing. Error %d on line %d of %s : %s/%s=%s",
					err, line, ENV_INI, pszSection, pszName, pszValue);
			}
		}
		return noErr;
	}

const char *ConfigStore::GetConfig(const char *name)
{ 
	char buf[256];
        char *ret;
	if (m_root->getSet() ==NULL) {
		return NULL;
	}
	if (PL_strlen(m_substore_name) == 0) {
		PL_strncpy(buf,name,256);
	} else {
		PR_snprintf(buf,256,"%s.%s",m_substore_name,name);
	}

        PR_Lock(m_lock);
        ret = (char *)PL_HashTableLookupConst(m_root->getSet(), buf);
        PR_Unlock(m_lock);

	return ret;
}

JNIEXPORT void JNICALL
Java_org_mozilla_jss_ssl_SSLSocket_setCipherPreferenceDefault(
    JNIEnv *env, jclass clazz, jint cipher, jboolean enable)
{
    SECStatus status;

    /* set the preference */
    status = SSL_CipherPrefSetDefault(cipher, enable);
    if(status != SECSuccess) {
        char buf[128];
        PR_snprintf(buf, 128, "Failed to %s cipher 0x%lx\n",
            (enable ? "enable" : "disable"), cipher);
        JSSL_throwSSLSocketException(env, buf);
        goto finish;
    }

finish:
    return;
}

NS_IMETHODIMP 
nsDebugImpl::Warning(const char* aMessage,
                     const char* aFile, PRIntn aLine)
{
  InitLog();

  char buf[1000];
  PR_snprintf(buf, sizeof(buf),
              "WARNING: %s, file %s, line %d",
              aMessage, aFile, aLine);

  // Write out the warning message to the debug log
  PR_LOG(gDebugLog, PR_LOG_ERROR, ("%s", buf));

  // And write it out to the stdout
  fprintf(stderr, "%s\n", buf);
  fflush(stderr);
  return NS_OK;
}

void CMapiApi::GetPropTagName( ULONG tag, nsCString& s)
{
  char numStr[256];
  PR_snprintf( numStr, 256, "0x%lx, %ld", tag, tag);
  s = numStr;
  switch( tag) {
#include "mapitagstrs.cpp"
  }
  s += ", data: ";
  switch( PROP_TYPE( tag)) {
    case PT_UNSPECIFIED: s += "PT_UNSPECIFIED"; break;
    case PT_NULL: s += "PT_NULL"; break;
    case PT_I2: s += "PT_I2"; break;
    case PT_LONG: s += "PT_LONG"; break;
    case PT_R4: s += "PT_R4"; break;
    case PT_DOUBLE: s += "PT_DOUBLE"; break;
    case PT_CURRENCY: s += "PT_CURRENCY"; break;
    case PT_APPTIME: s += "PT_APPTIME"; break;
    case PT_ERROR: s += "PT_ERROR"; break;
    case PT_BOOLEAN: s += "PT_BOOLEAN"; break;
    case PT_OBJECT: s += "PT_OBJECT"; break;
    case PT_I8: s += "PT_I8"; break;
    case PT_STRING8: s += "PT_STRING8"; break;
    case PT_UNICODE: s += "PT_UNICODE"; break;
    case PT_SYSTIME: s += "PT_SYSTIME"; break;
    case PT_CLSID: s += "PT_CLSID"; break;
    case PT_BINARY: s += "PT_BINARY"; break;
    case PT_MV_I2: s += "PT_MV_I2"; break;
    case PT_MV_LONG: s += "PT_MV_LONG"; break;
    case PT_MV_R4: s += "PT_MV_R4"; break;
    case PT_MV_DOUBLE: s += "PT_MV_DOUBLE"; break;
    case PT_MV_CURRENCY: s += "PT_MV_CURRENCY"; break;
    case PT_MV_APPTIME: s += "PT_MV_APPTIME"; break;
    case PT_MV_SYSTIME: s += "PT_MV_SYSTIME"; break;
    case PT_MV_STRING8: s += "PT_MV_STRING8"; break;
    case PT_MV_BINARY: s += "PT_MV_BINARY"; break;
    case PT_MV_UNICODE: s += "PT_MV_UNICODE"; break;
    case PT_MV_CLSID: s += "PT_MV_CLSID"; break;
    case PT_MV_I8: s += "PT_MV_I8"; break;
    default:
      s += "Unknown";
  }
}

PRStatus
_PR_MD_OPEN_DIR(_MDDir *d, const char *name)
{
    char filename[ CCHMAXPATH ];
    PRUword numEntries, rc;

    numEntries = 1;

    PR_snprintf(filename, CCHMAXPATH, "%s%s%s",
                name, PR_DIRECTORY_SEPARATOR_STR, "*.*");
    FlipSlashes( filename, strlen(filename) );

    d->d_hdl = HDIR_CREATE;

    if (isWSEB)
    {
        rc = DosFindFirst( filename,
                           &d->d_hdl,
                           FILE_DIRECTORY | FILE_HIDDEN,
                           &(d->d_entry.large),
                           sizeof(d->d_entry.large),
                           &numEntries,
                           FIL_STANDARDL);
    }
    else
    {
        rc = DosFindFirst( filename,
                           &d->d_hdl,
                           FILE_DIRECTORY | FILE_HIDDEN,
                           &(d->d_entry.small),
                           sizeof(d->d_entry.small),
                           &numEntries,
                           FIL_STANDARD);
    }
    if ( rc != NO_ERROR ) {
		_PR_MD_MAP_OPENDIR_ERROR(rc);
        return PR_FAILURE;
    }
    d->firstEntry = PR_TRUE;
    d->magic = _MD_MAGIC_DIR;
    return PR_SUCCESS;
}

PRInt32
_PR_MD_STAT(const char *fn, struct stat *info)
{
    PRInt32 rv;
    char filename[CCHMAXPATH];

    PR_snprintf(filename, CCHMAXPATH, "%s", fn);
    FlipSlashes(filename, strlen(filename));

    rv = _stat((char*)filename, info);
    if (-1 == rv) {
        /*
         * Check for MSVC runtime library _stat() bug.
         * (It's really a bug in FindFirstFile().)
         * If a pathname ends in a backslash or slash,
         * e.g., c:\temp\ or c:/temp/, _stat() will fail.
         * Note: a pathname ending in a slash (e.g., c:/temp/)
         * can be handled by _stat() on NT but not on Win95.
         *
         * We remove the backslash or slash at the end and
         * try again.  
         *
         * Not sure if this happens on OS/2 or not,
         * but it doesn't hurt to be careful.
         */

        int len = strlen(fn);
        if (len > 0 && len <= _MAX_PATH
                && (fn[len - 1] == '\\' || fn[len - 1] == '/')) {
            char newfn[_MAX_PATH + 1];

            strcpy(newfn, fn);
            newfn[len - 1] = '\0';
            rv = _stat(newfn, info);
        }
    }

    if (-1 == rv) {
        _PR_MD_MAP_STAT_ERROR(errno);
    }
    return rv;
}

static void DLLErrorInternal(PRIntn oserr)
/*
** This whole function, and most of the code in this file, are run
** with a big hairy lock wrapped around it. Not the best of situations,
** but will eventually come up with the right answer.
*/
{
    const char *error = NULL;
#ifdef USE_DLFCN
    error = dlerror();  /* $$$ That'll be wrong some of the time - AOF */
#elif defined(HAVE_STRERROR)
    error = strerror(oserr);  /* this should be okay */
#else
    char errStrBuf[ERR_STR_BUF_LENGTH];
    PR_snprintf(errStrBuf, sizeof(errStrBuf), "error %d", oserr);
    error = errStrBuf;
#endif
    if (NULL != error)
        PR_SetErrorText(strlen(error), error);
}  /* DLLErrorInternal */