conf.c

ipp打印机服务器原代码 注意：请将ipp.gz改为ipp.tar.gz 然后使用tar zxvf ipp.tar.gz解压 站长注意

 /*
  * Check the MaxClients setting, and then allocate memory for it...
  */

  if (MaxClients > (MaxFDs / 3) || MaxClients <= 0)
  {
    if (MaxClients > 0)
      LogMessage(L_INFO, "MaxClients limited to 1/3 of the file descriptor limit (%d)...",
                 MaxFDs);

    MaxClients = MaxFDs / 3;
  }

  if ((Clients = calloc(sizeof(client_t), MaxClients)) == NULL)
  {
    LogMessage(L_ERROR, "ReadConfiguration: Unable to allocate memory for %d clients: %s",
               MaxClients, strerror(errno));
    exit(1);
  }
  else
    LogMessage(L_INFO, "Configured for up to %d clients.", MaxClients);

  if (Classification && strcasecmp(Classification, "none") == 0)
    ClearString(&Classification);

  if (Classification)
    LogMessage(L_INFO, "Security set to \"%s\"", Classification);

 /*
  * Update the MaxClientsPerHost value, as needed...
  */

  if (MaxClientsPerHost <= 0)
    MaxClientsPerHost = MaxClients;

  if (MaxClientsPerHost > MaxClients)
    MaxClientsPerHost = MaxClients;

  LogMessage(L_INFO, "Allowing up to %d client connections per host.",
             MaxClientsPerHost);

 /*
  * If we are doing a full reload or the server root has changed, flush
  * the jobs, printers, etc. and start from scratch...
  */
    DEBUG_printf(("test 05\n")); 
  if (NeedReload == RELOAD_ALL ||
      !old_serverroot || !ServerRoot || strcmp(old_serverroot, ServerRoot) ||
      !old_requestroot || !RequestRoot || strcmp(old_requestroot, RequestRoot))
  {
    LogMessage(L_INFO, "Full reload is required.");

#if	0
   /*
    * Free all memory...
    */

    FreeAllJobs();
    DeleteAllClasses();
    DeleteAllPrinters();

    DefaultPrinter = NULL;

    if (Devices)
    {
      ippDelete(Devices);
      Devices = NULL;
    }

    if (PPDs)
    {
      ippDelete(PPDs);
      PPDs = NULL;
    }

    if (MimeDatabase != NULL)
      mimeDelete(MimeDatabase);

    if (NumMimeTypes)
    {
      for (i = 0; i < NumMimeTypes; i ++)
	free((void *)MimeTypes[i]);

      free(MimeTypes);
    }

   /*
    * Read the MIME type and conversion database...
    */

    snprintf(temp, sizeof(temp), "%s/filter", ServerBin);

    MimeDatabase = mimeNew();
    mimeMerge(MimeDatabase, ServerRoot, temp);

   /*
    * Create a list of MIME types for the document-format-supported
    * attribute...
    */

    NumMimeTypes = MimeDatabase->num_types;
    if (!mimeType(MimeDatabase, "application", "octet-stream"))
      NumMimeTypes ++;

    MimeTypes = calloc(NumMimeTypes, sizeof(const char *));

    for (i = 0; i < MimeDatabase->num_types; i ++)
    {
      snprintf(type, sizeof(type), "%s/%s", MimeDatabase->types[i]->super,
               MimeDatabase->types[i]->type);

      MimeTypes[i] = strdup(type);
    }

    if (i < NumMimeTypes)
      MimeTypes[i] = strdup("application/octet-stream");

   /*
    * Load banners...
    */

    snprintf(temp, sizeof(temp), "%s/banners", DataDir);
    LoadBanners(temp);
#endif
   /*
    * Load printers and classes...
    */

    LoadAllPrinters();
//    LoadAllClasses();

    CreateCommonData();

#if	0
   /*
    * Load devices and PPDs...
    */

    snprintf(temp, sizeof(temp), "%s/backend", ServerBin);
    LoadDevices(temp);

    snprintf(temp, sizeof(temp), "%s/model", DataDir);
    LoadPPDs(temp);

   /*
    * Load queued jobs...
    */

    LoadAllJobs();

    LogMessage(L_INFO, "Full reload complete.");
#endif
  }
  else
  {
    CreateCommonData();

    LogMessage(L_INFO, "Partial reload complete.");
  }

#if	0
 /*
  * Reset the reload state...
  */

  NeedReload = RELOAD_NONE;

  ClearString(&old_serverroot);
  ClearString(&old_requestroot);
#endif

 /*
  * Startup the server and return...
  */

  StartServer();

  DEBUG_printf(("Function ReadConfiguration()\n\n")); 
  return (1);
}


/*
 * 'read_configuration()' - Read a configuration file.
 */

static int				/* O - 1 on success, 0 on failure */
read_configuration(cups_file_t *fp)	/* I - File to read from */
{
  int		i;			/* Looping var */
  int		linenum;		/* Current line number */
  int		len;			/* Length of line */
  char		line[HTTP_MAX_BUFFER],	/* Line from file */
		name[256],		/* Parameter name */
		*nameptr,		/* Pointer into name */
		*value;			/* Pointer to value */
  var_t		*var;			/* Current variable */
  cups_file_t	*incfile;		/* Include file */
  char		incname[1024];		/* Include filename */
#if	0
  int		valuelen;		/* Length of value */
  unsigned	address;		/* Address value */
  unsigned		netmask;		/* Netmask value */
  int		mask[4];		/* IP netmask components */
  int		ip[4],			/* IP address components */
		ipcount;		/* Number of components provided */
  dirsvc_relay_t *relay;		/* Relay data */
  dirsvc_poll_t	*poll;			/* Polling data */
  struct sockaddr_in polladdr;		/* Polling address */
  location_t	*location;		/* Browse location */
  static unsigned netmasks[4] =		/* Standard netmasks... */
  {
    0xff000000,
    0xffff0000,
    0xffffff00,
    0xffffffff
  };
#endif



  DEBUG_printf(("Function read_configuration() start...\n")); 
 /*
  * Loop through each line in the file...
  */

  linenum = 0;

  while (cupsFileGets(fp, line, sizeof(line)) != NULL)
  {
    linenum ++;

   /*
    * Skip comment lines...
    */

    if (line[0] == '#')
      continue;

   /*
    * Strip trailing whitespace, if any...
    */

    len = strlen(line);

    while (len > 0 && isspace(line[len - 1]))
    {
      len --;
      line[len] = '\0';
    }

   /*
    * Extract the name from the beginning of the line...
    */

    for (value = line; isspace(*value); value ++);

    for (nameptr = name; *value != '\0' && !isspace(*value) &&
                             nameptr < (name + sizeof(name) - 1);)
      *nameptr++ = *value++;
    *nameptr = '\0';

    while (isspace(*value))
      value ++;

    if (name[0] == '\0')
      continue;


   /*
    * Decode the directive...
    */

    if (strcasecmp(name, "Include") == 0)
    {
     /*
      * Include filename
      */

      if (value[0] == '/')
        strlcpy(incname, value, sizeof(incname));
      else
        snprintf(incname, sizeof(incname), "%s/%s", ServerRoot, value);

      if ((incfile = cupsFileOpen(incname, "rb")) == NULL)
        LogMessage(L_ERROR, "Unable to include config file \"%s\" - %s",
	           incname, strerror(errno));
      else
      {
        read_configuration(incfile);
	cupsFileClose(incfile);
      }
    }
#if	0
    else if (strcasecmp(name, "<Location") == 0)
    {
     /*
      * <Location path>
      */

      if (line[len - 1] == '>')
      {
        line[len - 1] = '\0';

	linenum = read_location(fp, value, linenum);
	if (linenum == 0)
	  return (0);
      }
      else
      {
        LogMessage(L_ERROR, "Syntax error on line %d.",
	           linenum);
        return (0);
      }
    }
#endif
    else if (strcasecmp(name, "Port") == 0 ||
             strcasecmp(name, "Listen") == 0)
    {
     /*
      * Add a listening address to the list...
      */

      listener_t	*temp;		/* New listeners array */


      if (NumListeners == 0)
        temp = malloc(sizeof(listener_t));
      else
        temp = realloc(Listeners, (NumListeners + 1) * sizeof(listener_t));

      if (!temp)
      {
        LogMessage(L_ERROR, "Unable to allocate %s at line %d - %s.",
	           name, linenum, strerror(errno));
        continue;
      }

      Listeners = temp;
      temp      += NumListeners;

      memset(temp, 0, sizeof(listener_t));

      if (get_address(value, INADDR_ANY, IPP_PORT, &(temp->address)))
      {
        LogMessage(L_INFO, "Listening to %x:%d",
                   (unsigned)ntohl(temp->address.sin_addr.s_addr),
                   ntohs(temp->address.sin_port));
	NumListeners ++;
      }
      else
        LogMessage(L_ERROR, "Bad %s address %s at line %d.", name,
	           value, linenum);
    }
#if	0
#ifdef HAVE_SSL
    else if (strcasecmp(name, "SSLPort") == 0 ||
             strcasecmp(name, "SSLListen") == 0)
    {
     /*
      * Add a listening address to the list...
      */

      listener_t	*temp;		/* New listeners array */


      if (NumListeners == 0)
        temp = malloc(sizeof(listener_t));
      else
        temp = realloc(Listeners, (NumListeners + 1) * sizeof(listener_t));

      if (!temp)
      {
        LogMessage(L_ERROR, "Unable to allocate %s at line %d - %s.",
	           name, linenum, strerror(errno));
        continue;
      }

      Listeners = temp;
      temp      += NumListeners;

      if (get_address(value, INADDR_ANY, IPP_PORT, &(temp->address)))
      {
        LogMessage(L_INFO, "Listening to %x:%d (SSL)",
                   (unsigned)ntohl(temp->address.sin_addr.s_addr),
                   ntohs(temp->address.sin_port));
        temp->encryption = HTTP_ENCRYPT_ALWAYS;
	NumListeners ++;
      }
      else
        LogMessage(L_ERROR, "Bad %s address %s at line %d.", name,
	           value, linenum);
    }
#endif /* HAVE_SSL */
    else if (strcasecmp(name, "BrowseAddress") == 0)
    {
     /*
      * Add a browse address to the list...
      */

      dirsvc_addr_t	*temp;		/* New browse address array */


      if (NumBrowsers == 0)
        temp = malloc(sizeof(dirsvc_addr_t));
      else
        temp = realloc(Browsers, (NumBrowsers + 1) * sizeof(dirsvc_addr_t));

      if (!temp)
      {
        LogMessage(L_ERROR, "Unable to allocate BrowseAddress at line %d - %s.",
	           linenum, strerror(errno));
        continue;
      }

      Browsers = temp;
      temp     += NumBrowsers;

      memset(temp, 0, sizeof(dirsvc_addr_t));

      if (strcasecmp(value, "@LOCAL") == 0)
      {
       /*
	* Send browse data to all local interfaces...
	*/

	strcpy(temp->iface, "*");
	NumBrowsers ++;
      }
      else if (strncasecmp(value, "@IF(", 4) == 0)
      {
       /*
	* Send browse data to the named interface...
	*/

	strlcpy(temp->iface, value + 4, sizeof(Browsers[0].iface));

        nameptr = temp->iface + strlen(temp->iface) - 1;
        if (*nameptr == ')')
	  *nameptr = '\0';

	NumBrowsers ++;
      }
      else if (get_address(value, INADDR_NONE, BrowsePort, &(temp->to)))
      {
        LogMessage(L_INFO, "Sending browsing info to %x:%d",
                   (unsigned)ntohl(temp->to.sin_addr.s_addr),
                   ntohs(temp->to.sin_port));

	NumBrowsers ++;
      }
      else
        LogMessage(L_ERROR, "Bad BrowseAddress %s at line %d.", value,
	           linenum);
    }
    else if (strcasecmp(name, "BrowseOrder") == 0)
    {
     /*
      * "BrowseOrder Deny,Allow" or "BrowseOrder Allow,Deny"...
      */

      if ((location = FindLocation("CUPS_INTERNAL_BROWSE_ACL")) == NULL)
        location = AddLocation("CUPS_INTERNAL_BROWSE_ACL");

      if (location == NULL)
        LogMessage(L_ERROR, "Unable to initialize browse access control list!");
      else if (strncasecmp(value, "deny", 4) == 0)
        location->order_type = AUTH_ALLOW;
      else if (strncasecmp(value, "allow", 5) == 0)
        location->order_type = AUTH_DENY;
      else
        LogMessage(L_ERROR, "Unknown BrowseOrder value %s on line %d.",
	           value, linenum);
    }
    else if (strcasecmp(name, "BrowseProtocols") == 0)
    {
     /*
      * "BrowseProtocol name [... name]"
      */

      BrowseProtocols = 0;

      for (; *value;)
      {
        for (valuelen = 0; value[valuelen]; valuelen ++)
	  if (isspace(value[valuelen]) || value[valuelen] == ',')
	    break;

        if (value[valuelen])
        {
	  value[valuelen] = '\0';
	  valuelen ++;
	}

        if (strcasecmp(value, "cups") == 0)
	  BrowseProtocols |= BROWSE_CUPS;
        else if (strcasecmp(value, "slp") == 0)
	  BrowseProtocols |= BROWSE_SLP;
        else if (strcasecmp(value, "ldap") == 0)
	  BrowseProtocols |= BROWSE_LDAP;
        else if (strcasecmp(value, "all") == 0)
	  BrowseProtocols |= BROWSE_ALL;
	else
	{
	  LogMessage(L_ERROR, "Unknown browse protocol \"%s\" on line %d.",
	             value, linenum);
          break;
	}

        for (value += valuelen; *value; value ++)
	  if (!isspace(*value) || *value != ',')
	    break;
      }
    }
    else if (strcasecmp(name, "BrowseAllow") == 0 ||
             strcasecmp(name, "BrowseDeny") == 0)
    {
     /*
      * BrowseAllow [From] host/ip...
      * BrowseDeny [From] host/ip...
      */

      if ((location = FindLocation("CUPS_INTERNAL_BROWSE_ACL")) == NULL)
        location = AddLocation("CUPS_INTERNAL_BROWSE_ACL");

      if (location == NULL)
        LogMessage(L_ERROR, "Unable to initialize browse access control list!");
      else
      {
	if (strncasecmp(value, "from ", 5) == 0)
	{
	 /*
          * Strip leading "from"...
	  */

	  value += 5;

	  while (isspace(*value))
	    value ++;
	}

       /*
	* Figure out what form the allow/deny address takes:
	*
	*    All
	*    None
	*    *.domain.com
	*    .domain.com
	*    host.domain.com
	*    nnn.*
	*    nnn.nnn.*
	*    nnn.nnn.nnn.*
	*    nnn.nnn.nnn.nnn
	*    nnn.nnn.nnn.nnn/mm
	*    nnn.nnn.nnn.nnn/mmm.mmm.mmm.mmm
	*/

	if (strcasecmp(value, "all") == 0)
	{
	 /*
          * All hosts...
	  */

          if (strcasecmp(name, "BrowseAllow") == 0)
	    AllowIP(location, 0, 0);
	  else
	    DenyIP(location, 0, 0);
	}
	else if (strcasecmp(value, "none") == 0)