[thirdparty/cups.git] / scheduler / dirsvc.c

/*
 * "$Id: dirsvc.c,v 1.29 1999/06/23 17:19:16 mike Exp $"
 *
 *   Directory services routines for the Common UNIX Printing System (CUPS).
 *
 *   Copyright 1997-1999 by Easy Software Products, all rights reserved.
 *
 *   These coded instructions, statements, and computer programs are the
 *   property of Easy Software Products and are protected by Federal
 *   copyright law.  Distribution and use rights are outlined in the file
 *   "LICENSE.txt" which should have been included with this file.  If this
 *   file is missing or damaged please contact Easy Software Products
 *   at:
 *
 *       Attn: CUPS Licensing Information
 *       Easy Software Products
 *       44141 Airport View Drive, Suite 204
 *       Hollywood, Maryland 20636-3111 USA
 *
 *       Voice: (301) 373-9603
 *       EMail: cups-info@cups.org
 *         WWW: http://www.cups.org
 *
 * Contents:
 *
 *   StartBrowsing()    - Start sending and receiving broadcast information.
 *   StopBrowsing()     - Stop sending and receiving broadcast information.
 *   UpdateBrowseList() - Update the browse lists for any new browse data.
 *   SendBrowseList()   - Send new browsing information.
 */

/*
 * Include necessary headers...
 */

#include "cupsd.h"


/*
 * 'StartBrowsing()' - Start sending and receiving broadcast information.
 */

void
StartBrowsing(void)
{
  int			val;	/* Socket option value */
  struct sockaddr_in	addr;	/* Broadcast address */


  if (!Browsing)
    return;

 /*
  * Create the broadcast socket...
  */

  if ((BrowseSocket = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
  {
    LogMessage(LOG_ERROR, "StartBrowsing: Unable to create broadcast socket - %s.",
               strerror(errno));
    return;
  }

 /*
  * Set the "broadcast" flag...
  */

  val = 1;
  if (setsockopt(BrowseSocket, SOL_SOCKET, SO_BROADCAST, &val, sizeof(val)))
  {
    LogMessage(LOG_ERROR, "StartBrowsing: Unable to set broadcast mode - %s.",
               strerror(errno));

#if defined(WIN32) || defined(__EMX__)
    closesocket(BrowseSocket);
#else
    close(BrowseSocket);
#endif /* WIN32 || __EMX__ */

    BrowseSocket = -1;
    return;
  }

 /*
  * Bind the socket to browse port...
  */

  memset(&addr, 0, sizeof(addr));
  addr.sin_addr.s_addr = htonl(INADDR_ANY);
  addr.sin_family      = AF_INET;
  addr.sin_port        = htons(BrowsePort);

  if (bind(BrowseSocket, &addr, sizeof(addr)))
  {
    LogMessage(LOG_ERROR, "StartBrowsing: Unable to bind broadcast socket - %s.",
               strerror(errno));

#if defined(WIN32) || defined(__EMX__)
    closesocket(BrowseSocket);
#else
    close(BrowseSocket);
#endif /* WIN32 || __EMX__ */

    BrowseSocket = -1;
    return;
  }

 /*
  * Finally, add the socket to the input selection set...
  */

  FD_SET(BrowseSocket, &InputSet);
}


/*
 * 'StopBrowsing()' - Stop sending and receiving broadcast information.
 */

void
StopBrowsing(void)
{
  if (!Browsing)
    return;

 /*
  * Close the socket and remove it from the input selection set.
  */

  if (BrowseSocket >= 0)
  {
#if defined(WIN32) || defined(__EMX__)
    closesocket(BrowseSocket);
#else
    close(BrowseSocket);
#endif /* WIN32 || __EMX__ */

    FD_CLR(BrowseSocket, &InputSet);
  }
}


/*
 * 'UpdateBrowseList()' - Update the browse lists for any new browse data.
 */

void
UpdateBrowseList(void)
{
  int		i;			/* Looping var */
  int		len,			/* Length of name string */
		offset;			/* Offset in name string */
  int		bytes;			/* Number of bytes left */
  char		packet[1540];		/* Broadcast packet */
  cups_ptype_t	type;			/* Printer type */
  ipp_pstate_t	state;			/* Printer state */
  char		uri[HTTP_MAX_URI],	/* Printer URI */
		method[HTTP_MAX_URI],	/* Method portion of URI */
		username[HTTP_MAX_URI],	/* Username portion of URI */
		host[HTTP_MAX_URI],	/* Host portion of URI */
		resource[HTTP_MAX_URI];	/* Resource portion of URI */
  int		port;			/* Port portion of URI */
  char		name[IPP_MAX_NAME],	/* Name of printer */
		*hptr,			/* Pointer into hostname */
		*sptr;			/* Pointer into ServerName */
  printer_t	*p,			/* Printer information */
		*pclass,		/* Printer class */
		*first;			/* First printer in class */


 /*
  * Read a packet from the browse socket...
  */

  if ((bytes = recv(BrowseSocket, packet, sizeof(packet), 0)) <= 0)
  {
    LogMessage(LOG_ERROR, "UpdateBrowseList: recv failed - %s.",
               strerror(errno));
    return;
  }

  packet[bytes] = '\0';
  DEBUG_printf(("UpdateBrowseList: (%d bytes) %s", bytes, packet));

  if (sscanf(packet, "%x%x%s", &type, &state, uri) != 3)
  {
    LogMessage(LOG_WARN, "UpdateBrowseList: Garbled browse packet - %s",
               packet);
    return;
  }

 /*
  * Pull the URI apart to see if this is a local or remote printer...
  */

  httpSeparate(uri, method, username, host, &port, resource);

  if (strcasecmp(host, ServerName) == 0)
    return;

 /*
  * OK, this isn't a local printer; see if we already have it listed in
  * the Printers list, and add it if not...
  */

  type |= CUPS_PRINTER_REMOTE;

  hptr = strchr(host, '.');
  sptr = strchr(ServerName, '.');

  if (hptr != NULL && sptr != NULL &&
      strcasecmp(hptr, sptr) == 0)
    *hptr = '\0';

  if (type & CUPS_PRINTER_CLASS)
  {
   /*
    * Remote destination is a class...
    */

    if (strncmp(resource, "/classes/", 9) == 0)
      sprintf(name, "%s@%s", resource + 9, host);
    else
      return;

    if ((p = FindClass(name)) == NULL)
      if ((p = FindClass(resource + 9)) != NULL)
      {
        if (strcasecmp(p->hostname, host) != 0)
	{
	 /*
	  * Nope, this isn't the same host; if the hostname isn't the local host,
	  * add it to the other class and then find a class using the full host
	  * name...
	  */

	  if (strcasecmp(p->hostname, ServerName) != 0)
	  {
            strcat(p->name, "@");
	    strcat(p->name, p->hostname);
	    SetPrinterAttrs(p);
	    SortPrinters();
	  }

          p = NULL;
	}
      }
      else
        strcpy(name, resource + 9);

    if (p == NULL)
    {
     /*
      * Class doesn't exist; add it...
      */

      p = AddClass(name);

     /*
      * Force the URI to point to the real server...
      */

      strcpy(p->uri, uri);
      strcpy(p->device_uri, uri);
      strcpy(p->hostname, host);
      free(p->attrs->attrs->values[0].string.text);
      p->attrs->attrs->values[0].string.text = strdup(uri);
    }
  }
  else
  {
   /*
    * Remote destination is a printer...
    */

    if (strncmp(resource, "/printers/", 10) == 0)
      sprintf(name, "%s@%s", resource + 10, host);
    else
      return;

    if ((p = FindPrinter(name)) == NULL)
      if ((p = FindPrinter(resource + 10)) != NULL)
      {
        if (strcasecmp(p->hostname, host) != 0)
	{
	 /*
	  * Nope, this isn't the same host; if the hostname isn't the local host,
	  * add it to the other printer and then find a printer using the full host
	  * name...
	  */

	  if (strcasecmp(p->hostname, ServerName) != 0)
	  {
            strcat(p->name, "@");
	    strcat(p->name, p->hostname);
	    SetPrinterAttrs(p);
	    SortPrinters();
	  }

          p = NULL;
	}
      }
      else
        strcpy(name, resource + 10);

    if (p == NULL)
    {
     /*
      * Printer doesn't exist; add it...
      */

      p = AddPrinter(name);

     /*
      * First the URI to point to the real server...
      */

      strcpy(p->uri, uri);
      strcpy(p->device_uri, uri);
      strcpy(p->hostname, host);
      free(p->attrs->attrs->values[0].string.text);
      p->attrs->attrs->values[0].string.text = strdup(uri);
    }
  }

 /*
  * Update the state...
  */

  p->type        = type;
  p->state       = state;
  p->accepting   = state != IPP_PRINTER_STOPPED;
  p->browse_time = time(NULL);

 /*
  * Do auto-classing if needed...
  */

  if (ImplicitClasses)
  {
   /*
    * Loop through all available printers and create classes as needed...
    */

    for (p = Printers, len = 0, offset = 0; p != NULL; p = p->next)
    {
     /*
      * Skip classes...
      */

      if (p->type & CUPS_PRINTER_CLASS)
      {
        len = 0;
        continue;
      }

     /*
      * If len == 0, get the length of this printer name up to the "@"
      * sign (if any).
      */

      if (len > 0 &&
	  strncasecmp(p->name, name + offset, len) == 0 &&
	  (p->name[len] == '\0' || p->name[len] == '@'))
      {
       /*
	* We have more than one printer with the same name; see if
	* we have a class, and if this printer is a member...
	*/

        if ((pclass = FindClass(name)) == NULL)
	  pclass = AddClass(name);

        if (first != NULL)
	{
          for (i = 0; i < pclass->num_printers; i ++)
	    if (pclass->printers[i] == first)
	      break;

          if (i >= pclass->num_printers)
	    AddPrinterToClass(pclass, first);

	  first = NULL;
	}

        for (i = 0; i < pclass->num_printers; i ++)
	  if (pclass->printers[i] == p)
	    break;

        if (i >= pclass->num_printers)
	  AddPrinterToClass(pclass, p);
      }
      else
      {
       /*
        * First time around; just get name length and mark it as first
	* in the list...
	*/

	if ((hptr = strchr(p->name, '@')) != NULL)
	  len = hptr - p->name;
	else
	  len = strlen(p->name);

        strncpy(name, p->name, len);
	name[len] = '\0';
	offset    = 0;

	if (FindPrinter(name) != NULL)
	{
	 /*
	  * Can't use same name as printer; add "Any" to the front of the
	  * name...
	  */

          strcpy(name, "Any");
          strncpy(name + 3, p->name, len);
	  name[len + 3] = '\0';
	  offset        = 3;
	}

	first = p;
      }
    }
  }
}


/*
 * 'SendBrowseList()' - Send new browsing information.
 */

void
SendBrowseList(void)
{
  int			i;	/* Looping var */
  printer_t		*p,	/* Current printer */
			*np;	/* Next printer */
  time_t		ut,	/* Minimum update time */
			to;	/* Timeout time */
  int			bytes;	/* Length of packet */
  char			packet[1540];
				/* Browse data packet */


 /*
  * Compute the update time...
  */

  ut = time(NULL) - BrowseInterval;
  to = time(NULL) - BrowseTimeout;

 /*
  * Loop through all of the printers and send local updates as needed...
  */

  for (p = Printers; p != NULL; p = np)
  {
    np = p->next;

    if (p->type & CUPS_PRINTER_REMOTE)
    {
     /*
      * See if this printer needs to be timed out...
      */

      if (p->browse_time < to)
        DeletePrinter(p);
    }
    else if (p->browse_time < ut)
    {
     /*
      * Need to send an update...
      */

      p->browse_time = time(NULL);

      sprintf(packet, "%x %x %s\n", p->type | CUPS_PRINTER_REMOTE, p->state,
              p->uri);
      bytes = strlen(packet);
      DEBUG_printf(("SendBrowseList: (%d bytes) %s", bytes, packet));

     /*
      * Send a packet to each browse address...
      */

      for (i = 0; i < NumBrowsers; i ++)
	if (sendto(BrowseSocket, packet, bytes, 0, Browsers + i,
	           sizeof(Browsers[0])) <= 0)
	  LogMessage(LOG_ERROR, "SendBrowseList: sendto failed for browser %d - %s.",
	             i + 1, strerror(errno));
    }
  }
}


/*
 * End of "$Id: dirsvc.c,v 1.29 1999/06/23 17:19:16 mike Exp $".
 */
Commit	Line	Data
a129ddbd	1	/*
f925c8de	2	* "$Id: dirsvc.c,v 1.29 1999/06/23 17:19:16 mike Exp $"
a129ddbd	3	*
d6de4648	4	* Directory services routines for the Common UNIX Printing System (CUPS).
a129ddbd	5	*
a9de544f	6	* Copyright 1997-1999 by Easy Software Products, all rights reserved.
a129ddbd	7	*
	8	* These coded instructions, statements, and computer programs are the
	9	* property of Easy Software Products and are protected by Federal
	10	* copyright law. Distribution and use rights are outlined in the file
	11	* "LICENSE.txt" which should have been included with this file. If this
	12	* file is missing or damaged please contact Easy Software Products
	13	* at:
	14	*
	15	* Attn: CUPS Licensing Information
	16	* Easy Software Products
8784b6a6	17	* 44141 Airport View Drive, Suite 204
a129ddbd	18	* Hollywood, Maryland 20636-3111 USA
	19	*
	20	* Voice: (301) 373-9603
	21	* EMail: cups-info@cups.org
	22	* WWW: http://www.cups.org
	23	*
	24	* Contents:
	25	*
cbbfcc63	26	* StartBrowsing() - Start sending and receiving broadcast information.
	27	* StopBrowsing() - Stop sending and receiving broadcast information.
	28	* UpdateBrowseList() - Update the browse lists for any new browse data.
	29	* SendBrowseList() - Send new browsing information.
a129ddbd	30	*/
	31
	32	/*
	33	* Include necessary headers...
	34	*/
	35
fd8b1cf8	36	#include "cupsd.h"
	37
	38
d6de4648	39	/*
	40	* 'StartBrowsing()' - Start sending and receiving broadcast information.
	41	*/
	42
fd8b1cf8	43	void
	44	StartBrowsing(void)
	45	{
d6de4648	46	int val; /* Socket option value */
	47	struct sockaddr_in addr; /* Broadcast address */
	48
	49
8828fd5f	50	if (!Browsing)
d6de4648	51	return;
	52
	53	/*
	54	* Create the broadcast socket...
	55	*/
	56
900b10ea	57	if ((BrowseSocket = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
d6de4648	58	{
	59	LogMessage(LOG_ERROR, "StartBrowsing: Unable to create broadcast socket - %s.",
	60	strerror(errno));
	61	return;
	62	}
	63
	64	/*
900b10ea	65	* Set the "broadcast" flag...
d6de4648	66	*/
	67
	68	val = 1;
e9e40963	69	if (setsockopt(BrowseSocket, SOL_SOCKET, SO_BROADCAST, &val, sizeof(val)))
fd3ece61	70	{
	71	LogMessage(LOG_ERROR, "StartBrowsing: Unable to set broadcast mode - %s.",
	72	strerror(errno));
	73
	74	#if defined(WIN32) \|\| defined(__EMX__)
	75	closesocket(BrowseSocket);
	76	#else
	77	close(BrowseSocket);
	78	#endif /* WIN32 \|\| __EMX__ */
	79
	80	BrowseSocket = -1;
	81	return;
	82	}
d6de4648	83
d6de4648	84	/*
	85	* Bind the socket to browse port...
	86	*/
	87
d6de4648	88	memset(&addr, 0, sizeof(addr));
	89	addr.sin_addr.s_addr = htonl(INADDR_ANY);
	90	addr.sin_family = AF_INET;
	91	addr.sin_port = htons(BrowsePort);
	92
	93	if (bind(BrowseSocket, &addr, sizeof(addr)))
	94	{
	95	LogMessage(LOG_ERROR, "StartBrowsing: Unable to bind broadcast socket - %s.",
	96	strerror(errno));
	97
	98	#if defined(WIN32) \|\| defined(__EMX__)
	99	closesocket(BrowseSocket);
	100	#else
	101	close(BrowseSocket);
	102	#endif /* WIN32 \|\| __EMX__ */
	103
	104	BrowseSocket = -1;
	105	return;
	106	}
	107
	108	/*
	109	* Finally, add the socket to the input selection set...
	110	*/
	111
	112	FD_SET(BrowseSocket, &InputSet);
fd8b1cf8	113	}
	114
	115
d6de4648	116	/*
	117	* 'StopBrowsing()' - Stop sending and receiving broadcast information.
	118	*/
	119
fd8b1cf8	120	void
	121	StopBrowsing(void)
	122	{
8828fd5f	123	if (!Browsing)
d6de4648	124	return;
	125
	126	/*
	127	* Close the socket and remove it from the input selection set.
	128	*/
	129
3c7bb4a2	130	if (BrowseSocket >= 0)
3c7bb4a2	131	{
d6de4648	132	#if defined(WIN32) \|\| defined(__EMX__)
3c7bb4a2	133	closesocket(BrowseSocket);
d6de4648	134	#else
3c7bb4a2	135	close(BrowseSocket);
d6de4648	136	#endif /* WIN32 \|\| __EMX__ */
d6de4648	137
3c7bb4a2	138	FD_CLR(BrowseSocket, &InputSet);
3c7bb4a2	139	}
fd8b1cf8	140	}
	141
	142
d6de4648	143	/*
	144	* 'UpdateBrowseList()' - Update the browse lists for any new browse data.
	145	*/
	146
fd8b1cf8	147	void
	148	UpdateBrowseList(void)
	149	{
8b43895a	150	int i; /* Looping var */
eef5ad1b	151	int len, /* Length of name string */
eef5ad1b	152	offset; /* Offset in name string */
d6de4648	153	int bytes; /* Number of bytes left */
	154	char packet[1540]; /* Broadcast packet */
	155	cups_ptype_t type; /* Printer type */
	156	ipp_pstate_t state; /* Printer state */
	157	char uri[HTTP_MAX_URI], /* Printer URI */
	158	method[HTTP_MAX_URI], /* Method portion of URI */
	159	username[HTTP_MAX_URI], /* Username portion of URI */
	160	host[HTTP_MAX_URI], /* Host portion of URI */
	161	resource[HTTP_MAX_URI]; /* Resource portion of URI */
	162	int port; /* Port portion of URI */
	163	char name[IPP_MAX_NAME], /* Name of printer */
8b43895a	164	hptr, / Pointer into hostname */
	165	sptr; / Pointer into ServerName */
	166	printer_t p, / Printer information */
	167	pclass, / Printer class */
	168	first; / First printer in class */
d6de4648	169
	170
	171	/*
	172	* Read a packet from the browse socket...
	173	*/
	174
	175	if ((bytes = recv(BrowseSocket, packet, sizeof(packet), 0)) <= 0)
f9bacabb	176	{
8828fd5f	177	LogMessage(LOG_ERROR, "UpdateBrowseList: recv failed - %s.",
8828fd5f	178	strerror(errno));
d6de4648	179	return;
f9bacabb	180	}
d6de4648	181
d6de4648	182	packet[bytes] = '\0';
8828fd5f	183	DEBUG_printf(("UpdateBrowseList: (%d bytes) %s", bytes, packet));
d6de4648	184
	185	if (sscanf(packet, "%x%x%s", &type, &state, uri) != 3)
	186	{
	187	LogMessage(LOG_WARN, "UpdateBrowseList: Garbled browse packet - %s",
	188	packet);
	189	return;
	190	}
	191
	192	/*
	193	* Pull the URI apart to see if this is a local or remote printer...
	194	*/
	195
	196	httpSeparate(uri, method, username, host, &port, resource);
	197
	198	if (strcasecmp(host, ServerName) == 0)
	199	return;
	200
	201	/*
	202	* OK, this isn't a local printer; see if we already have it listed in
	203	* the Printers list, and add it if not...
	204	*/
	205
c7fa9d06	206	type \|= CUPS_PRINTER_REMOTE;
d6de4648	207
8b43895a	208	hptr = strchr(host, '.');
	209	sptr = strchr(ServerName, '.');
	210
	211	if (hptr != NULL && sptr != NULL &&
	212	strcasecmp(hptr, sptr) == 0)
	213	*hptr = '\0';
d6de4648	214
c7fa9d06	215	if (type & CUPS_PRINTER_CLASS)
d6de4648	216	{
d6de4648	217	/*
c7fa9d06	218	* Remote destination is a class...
d6de4648	219	*/
d6de4648	220
c7fa9d06	221	if (strncmp(resource, "/classes/", 9) == 0)
a71f40c4	222	sprintf(name, "%s@%s", resource + 9, host);
c7fa9d06	223	else
	224	return;
	225
	226	if ((p = FindClass(name)) == NULL)
a71f40c4	227	if ((p = FindClass(resource + 9)) != NULL)
eef5ad1b	228	{
a71f40c4	229	if (strcasecmp(p->hostname, host) != 0)
	230	{
	231	/*
	232	* Nope, this isn't the same host; if the hostname isn't the local host,
	233	* add it to the other class and then find a class using the full host
	234	* name...
	235	*/
	236
	237	if (strcasecmp(p->hostname, ServerName) != 0)
	238	{
	239	strcat(p->name, "@");
	240	strcat(p->name, p->hostname);
23050703	241	SetPrinterAttrs(p);
1cab4605	242	SortPrinters();
a71f40c4	243	}
	244
	245	p = NULL;
	246	}
eef5ad1b	247	}
	248	else
	249	strcpy(name, resource + 9);
a71f40c4	250
a71f40c4	251	if (p == NULL)
c7fa9d06	252	{
	253	/*
	254	* Class doesn't exist; add it...
	255	*/
d6de4648	256
782359ca	257	p = AddClass(name);
c7fa9d06	258
c7fa9d06	259	/*
782359ca	260	* Force the URI to point to the real server...
c7fa9d06	261	*/
	262
	263	strcpy(p->uri, uri);
	264	strcpy(p->device_uri, uri);
67a6c918	265	strcpy(p->hostname, host);
c7fa9d06	266	free(p->attrs->attrs->values[0].string.text);
	267	p->attrs->attrs->values[0].string.text = strdup(uri);
	268	}
	269	}
	270	else
	271	{
d6de4648	272	/*
c7fa9d06	273	* Remote destination is a printer...
d6de4648	274	*/
d6de4648	275
c7fa9d06	276	if (strncmp(resource, "/printers/", 10) == 0)
a71f40c4	277	sprintf(name, "%s@%s", resource + 10, host);
c7fa9d06	278	else
	279	return;
	280
	281	if ((p = FindPrinter(name)) == NULL)
a71f40c4	282	if ((p = FindPrinter(resource + 10)) != NULL)
eef5ad1b	283	{
a71f40c4	284	if (strcasecmp(p->hostname, host) != 0)
	285	{
	286	/*
	287	* Nope, this isn't the same host; if the hostname isn't the local host,
	288	* add it to the other printer and then find a printer using the full host
	289	* name...
	290	*/
	291
	292	if (strcasecmp(p->hostname, ServerName) != 0)
	293	{
	294	strcat(p->name, "@");
	295	strcat(p->name, p->hostname);
23050703	296	SetPrinterAttrs(p);
1cab4605	297	SortPrinters();
a71f40c4	298	}
	299
	300	p = NULL;
	301	}
eef5ad1b	302	}
	303	else
	304	strcpy(name, resource + 10);
a71f40c4	305
a71f40c4	306	if (p == NULL)
c7fa9d06	307	{
	308	/*
	309	* Printer doesn't exist; add it...
	310	*/
	311
	312	p = AddPrinter(name);
	313
	314	/*
	315	* First the URI to point to the real server...
	316	*/
	317
	318	strcpy(p->uri, uri);
	319	strcpy(p->device_uri, uri);
67a6c918	320	strcpy(p->hostname, host);
c7fa9d06	321	free(p->attrs->attrs->values[0].string.text);
	322	p->attrs->attrs->values[0].string.text = strdup(uri);
	323	}
d6de4648	324	}
	325
	326	/*
	327	* Update the state...
	328	*/
	329
f925c8de	330	p->type = type;
d6de4648	331	p->state = state;
0948b55b	332	p->accepting = state != IPP_PRINTER_STOPPED;
d6de4648	333	p->browse_time = time(NULL);
8b43895a	334
	335	/*
	336	* Do auto-classing if needed...
	337	*/
	338
	339	if (ImplicitClasses)
	340	{
	341	/*
	342	* Loop through all available printers and create classes as needed...
	343	*/
	344
eef5ad1b	345	for (p = Printers, len = 0, offset = 0; p != NULL; p = p->next)
8b43895a	346	{
	347	/*
	348	* Skip classes...
	349	*/
	350
	351	if (p->type & CUPS_PRINTER_CLASS)
	352	{
	353	len = 0;
	354	continue;
	355	}
	356
	357	/*
	358	* If len == 0, get the length of this printer name up to the "@"
	359	* sign (if any).
	360	*/
	361
	362	if (len > 0 &&
eef5ad1b	363	strncasecmp(p->name, name + offset, len) == 0 &&
8b43895a	364	(p->name[len] == '\0' \|\| p->name[len] == '@'))
	365	{
	366	/*
	367	* We have more than one printer with the same name; see if
	368	* we have a class, and if this printer is a member...
	369	*/
	370
	371	if ((pclass = FindClass(name)) == NULL)
	372	pclass = AddClass(name);
	373
	374	if (first != NULL)
	375	{
	376	for (i = 0; i < pclass->num_printers; i ++)
	377	if (pclass->printers[i] == first)
	378	break;
	379
	380	if (i >= pclass->num_printers)
	381	AddPrinterToClass(pclass, first);
	382
	383	first = NULL;
	384	}
	385
	386	for (i = 0; i < pclass->num_printers; i ++)
	387	if (pclass->printers[i] == p)
	388	break;
	389
	390	if (i >= pclass->num_printers)
	391	AddPrinterToClass(pclass, p);
	392	}
	393	else
	394	{
	395	/*
	396	* First time around; just get name length and mark it as first
	397	* in the list...
	398	*/
	399
	400	if ((hptr = strchr(p->name, '@')) != NULL)
	401	len = hptr - p->name;
	402	else
	403	len = strlen(p->name);
	404
782359ca	405	strncpy(name, p->name, len);
782359ca	406	name[len] = '\0';
eef5ad1b	407	offset = 0;
782359ca	408
	409	if (FindPrinter(name) != NULL)
	410	{
	411	/*
	412	* Can't use same name as printer; add "Any" to the front of the
	413	* name...
	414	*/
	415
	416	strcpy(name, "Any");
	417	strncpy(name + 3, p->name, len);
	418	name[len + 3] = '\0';
eef5ad1b	419	offset = 3;
782359ca	420	}
782359ca	421
8b43895a	422	first = p;
	423	}
	424	}
	425	}
fd8b1cf8	426	}
	427
	428
d6de4648	429	/*
	430	* 'SendBrowseList()' - Send new browsing information.
	431	*/
	432
fd8b1cf8	433	void
	434	SendBrowseList(void)
	435	{
d6de4648	436	int i; /* Looping var */
	437	printer_t p, / Current printer */
	438	np; / Next printer */
f9d6449d	439	time_t ut, /* Minimum update time */
f9d6449d	440	to; /* Timeout time */
d6de4648	441	int bytes; /* Length of packet */
	442	char packet[1540];
	443	/* Browse data packet */
	444
	445
	446	/*
	447	* Compute the update time...
	448	*/
	449
f9d6449d	450	ut = time(NULL) - BrowseInterval;
f9d6449d	451	to = time(NULL) - BrowseTimeout;
d6de4648	452
	453	/*
	454	* Loop through all of the printers and send local updates as needed...
	455	*/
	456
	457	for (p = Printers; p != NULL; p = np)
	458	{
	459	np = p->next;
	460
	461	if (p->type & CUPS_PRINTER_REMOTE)
	462	{
	463	/*
	464	* See if this printer needs to be timed out...
	465	*/
	466
f9d6449d	467	if (p->browse_time < to)
d6de4648	468	DeletePrinter(p);
d6de4648	469	}
f9d6449d	470	else if (p->browse_time < ut)
d6de4648	471	{
	472	/*
	473	* Need to send an update...
	474	*/
	475
	476	p->browse_time = time(NULL);
	477
ae5f9b38	478	sprintf(packet, "%x %x %s\n", p->type \| CUPS_PRINTER_REMOTE, p->state,
ae5f9b38	479	p->uri);
d6de4648	480	bytes = strlen(packet);
8828fd5f	481	DEBUG_printf(("SendBrowseList: (%d bytes) %s", bytes, packet));
d6de4648	482
	483	/*
	484	* Send a packet to each browse address...
	485	*/
	486
	487	for (i = 0; i < NumBrowsers; i ++)
f9bacabb	488	if (sendto(BrowseSocket, packet, bytes, 0, Browsers + i,
f9bacabb	489	sizeof(Browsers[0])) <= 0)
8828fd5f	490	LogMessage(LOG_ERROR, "SendBrowseList: sendto failed for browser %d - %s.",
fd3ece61	491	i + 1, strerror(errno));
d6de4648	492	}
d6de4648	493	}
fd8b1cf8	494	}
a129ddbd	495
	496
	497	/*
f925c8de	498	* End of "$Id: dirsvc.c,v 1.29 1999/06/23 17:19:16 mike Exp $".
a129ddbd	499	*/