cups 1.5.3

1 files changed, 1272 insertions, 0 deletions

diff --git a/abs/extra/cups/cups-avahi-5-services.patch b/abs/extra/cups/cups-avahi-5-services.patch
new file mode 100644
index 0000000..820b3c3
--- /dev/null
+++ b/abs/extra/cups/cups-avahi-5-services.patch
@@ -0,0 +1,1272 @@
+diff -up cups-1.5.2/cgi-bin/admin.c.avahi-5-services cups-1.5.2/cgi-bin/admin.c
+--- cups-1.5.2/cgi-bin/admin.c.avahi-5-services	2011-08-17 22:01:53.000000000 +0100
++++ cups-1.5.2/cgi-bin/admin.c	2012-03-14 15:08:25.701611799 +0000
+@@ -1643,7 +1643,7 @@ do_config_server(http_t *http)		/* I - H
+       else
+ 	local_protocols[0] = '\0';
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+       if (cgiGetVariable("BROWSE_LOCAL_DNSSD"))
+       {
+ 	if (local_protocols[0])
+@@ -1651,7 +1651,7 @@ do_config_server(http_t *http)		/* I - H
+ 	else
+ 	  strcat(local_protocols, "dnssd");
+       }
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ 
+ #ifdef HAVE_LDAP
+       if (cgiGetVariable("BROWSE_LOCAL_LDAP"))
+@@ -2718,9 +2718,9 @@ do_menu(http_t *http)			/* I - HTTP conn
+ #endif /* HAVE_GSSAPI */
+   cgiSetVariable("KERBEROS", "");
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+   cgiSetVariable("HAVE_DNSSD", "1");
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ 
+ #ifdef HAVE_LDAP
+   cgiSetVariable("HAVE_LDAP", "1");
+diff -up cups-1.5.2/scheduler/avahi.h.avahi-5-services cups-1.5.2/scheduler/avahi.h
+--- cups-1.5.2/scheduler/avahi.h.avahi-5-services	2012-03-14 15:07:29.477542381 +0000
++++ cups-1.5.2/scheduler/avahi.h	2012-03-14 15:08:25.701611799 +0000
+@@ -3,7 +3,7 @@
+  *
+  *   Avahi poll implementation for the CUPS scheduler.
+  *
+- *   Copyright (C) 2010, 2011 Red Hat, Inc.
++ *   Copyright (C) 2010, 2011, 2012 Red Hat, Inc.
+  *   Authors:
+  *    Tim Waugh <twaugh@redhat.com>
+  *
+@@ -32,37 +32,40 @@
+  *   OF THE POSSIBILITY OF SUCH DAMAGE.
+  */
+ 
+-#include <config.h>
++#ifndef _CUPS_AVAHI_H_
++#  define _CUPS_AVAHI_H_
+ 
+-#ifdef HAVE_AVAHI
+-#  include <avahi-client/client.h>
+-#  include <avahi-client/publish.h>
+-#endif /* HAVE_AVAHI */
++/*
++ * Include necessary headers...
++ */
+ 
+-#ifdef HAVE_AUTHORIZATION_H
+-#  include <Security/Authorization.h>
+-#endif /* HAVE_AUTHORIZATION_H */
++#  include <config.h>
+ 
++#  ifdef HAVE_AVAHI
++#    include <avahi-client/client.h>
++#    include <avahi-client/publish.h>
++#  endif /* HAVE_AVAHI */
+ 
+-#ifdef HAVE_AVAHI
++#  ifdef HAVE_AVAHI
+ typedef struct
+ {
+     AvahiPoll api;
+     cups_array_t *watched_fds;
+     cups_array_t *timeouts;
+ } AvahiCupsPoll;
+-#endif /* HAVE_AVAHI */
++#  endif /* HAVE_AVAHI */
+ 
+ /*
+  * Prototypes...
+  */
+ 
+-#ifdef HAVE_AVAHI
++#  ifdef HAVE_AVAHI
+ extern AvahiCupsPoll *	avahi_cups_poll_new(void);
+ extern void		avahi_cups_poll_free(AvahiCupsPoll *cups_poll);
+ extern const AvahiPoll *avahi_cups_poll_get(AvahiCupsPoll *cups_poll);
+-#endif /* HAVE_AVAHI */
++#  endif /* HAVE_AVAHI */
+ 
++#endif /* !_CUPS_AVAHI_H_ */
+ 
+ /*
+  * End of "$Id$".
+diff -up cups-1.5.2/scheduler/client.c.avahi-5-services cups-1.5.2/scheduler/client.c
+--- cups-1.5.2/scheduler/client.c.avahi-5-services	2012-01-13 23:00:22.000000000 +0000
++++ cups-1.5.2/scheduler/client.c	2012-03-14 15:08:25.703611797 +0000
+@@ -4989,7 +4989,7 @@ valid_host(cupsd_client_t *con)		/* I -
+ 	    !strncmp(host, "[::1]:", 6));
+   }
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+  /*
+   * Check if the hostname is something.local (Bonjour); if so, allow it.
+   */
+@@ -4998,7 +4998,7 @@ valid_host(cupsd_client_t *con)		/* I -
+       (!_cups_strcasecmp(end, ".local") || !_cups_strncasecmp(end, ".local:", 7) ||
+        !_cups_strcasecmp(end, ".local.") || !_cups_strncasecmp(end, ".local.:", 8)))
+     return (1);
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ 
+  /*
+   * Check if the hostname is an IP address...
+diff -up cups-1.5.2/scheduler/conf.c.avahi-5-services cups-1.5.2/scheduler/conf.c
+--- cups-1.5.2/scheduler/conf.c.avahi-5-services	2012-03-14 15:04:17.636305526 +0000
++++ cups-1.5.2/scheduler/conf.c	2012-03-14 15:08:25.706611803 +0000
+@@ -652,7 +652,7 @@ cupsdReadConfiguration(void)
+   Browsing                 = CUPS_DEFAULT_BROWSING;
+   DefaultShared            = CUPS_DEFAULT_DEFAULT_SHARED;
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+   cupsdSetString(&DNSSDRegType, "_ipp._tcp,_cups");
+ #endif /* HAVE_DNSSD */
+ 
+diff -up cups-1.5.2/scheduler/dirsvc.c.avahi-5-services cups-1.5.2/scheduler/dirsvc.c
+--- cups-1.5.2/scheduler/dirsvc.c.avahi-5-services	2012-03-14 15:04:17.674305572 +0000
++++ cups-1.5.2/scheduler/dirsvc.c	2012-03-14 15:08:25.709611806 +0000
+@@ -27,6 +27,7 @@
+  *   ldap_connect()             - Start new LDAP connection
+  *   ldap_reconnect()           - Reconnect to LDAP Server
+  *   ldap_disconnect()          - Disconnect from LDAP Server
++ *   cupsdStartAvahiClient()    - Start an Avahi client if needed
+  *   cupsdStartBrowsing()       - Start sending and receiving broadcast
+  *                                information.
+  *   cupsdStartPolling()        - Start polling servers as needed.
+@@ -40,11 +41,12 @@
+  *   dequote()                  - Remote quotes from a string.
+  *   dnssdAddAlias()            - Add a DNS-SD alias name.
+  *   dnssdBuildTxtRecord()      - Build a TXT record from printer info.
+- *   dnssdComparePrinters()     - Compare the registered names of two printers.
+  *   dnssdDeregisterPrinter()   - Stop sending broadcast information for a
+  *                                printer.
+  *   dnssdPackTxtRecord()       - Pack an array of key/value pairs into the TXT
+  *                                record format.
++ *   avahiPackTxtRecord()       - Pack an array of key/value pairs into an
++ *                                AvahiStringList.
+  *   dnssdRegisterCallback()    - DNSServiceRegister callback.
+  *   dnssdRegisterPrinter()     - Start sending broadcast information for a
+  *                                printer or update the broadcast contents.
+@@ -83,6 +85,7 @@
+  */
+ 
+ #include "cupsd.h"
++#include <assert.h>
+ #include <grp.h>
+ 
+ #ifdef HAVE_DNSSD
+@@ -97,6 +100,17 @@
+ #    endif /* HAVE_SYSTEMCONFIGURATION */
+ #  endif /* __APPLE__ */
+ #endif /* HAVE_DNSSD */
++#ifdef HAVE_AVAHI
++#  include <avahi-common/domain.h>
++#endif /* HAVE_AVAHI */
++
++
++#ifdef HAVE_DNSSD
++typedef char *cupsd_txt_record_t;
++#endif /* HAVE_DNSSD */
++#ifdef HAVE_AVAHI
++typedef AvahiStringList *cupsd_txt_record_t;
++#endif /* HAVE_AVAHI */
+ 
+ 
+ /*
+@@ -159,27 +173,38 @@ static void	update_polling(void);
+ static void	update_smb(int onoff);
+ 
+ 
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
++static cupsd_txt_record_t dnssdBuildTxtRecord(int *txt_len, cupsd_printer_t *p,
++					      int for_lpd);
++static void	dnssdDeregisterPrinter(cupsd_printer_t *p);
++static void	dnssdRegisterPrinter(cupsd_printer_t *p);
++static void	dnssdStop(void);
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
++
+ #ifdef HAVE_DNSSD
+ #  ifdef HAVE_COREFOUNDATION
+ static void	dnssdAddAlias(const void *key, const void *value,
+ 		              void *context);
+ #  endif /* HAVE_COREFOUNDATION */
+-static char	*dnssdBuildTxtRecord(int *txt_len, cupsd_printer_t *p,
+-		                     int for_lpd);
+-static int	dnssdComparePrinters(cupsd_printer_t *a, cupsd_printer_t *b);
+-static void	dnssdDeregisterPrinter(cupsd_printer_t *p);
+-static char	*dnssdPackTxtRecord(int *txt_len, char *keyvalue[][2],
+-		                    int count);
+ static void	dnssdRegisterCallback(DNSServiceRef sdRef,
+ 		                      DNSServiceFlags flags,
+ 				      DNSServiceErrorType errorCode,
+ 				      const char *name, const char *regtype,
+ 				      const char *domain, void *context);
+-static void	dnssdRegisterPrinter(cupsd_printer_t *p);
+-static void	dnssdStop(void);
+ static void	dnssdUpdate(void);
+ #endif /* HAVE_DNSSD */
+ 
++#ifdef HAVE_AVAHI
++static AvahiStringList *avahiPackTxtRecord(char *keyvalue[][2],
++					   int count);
++static void	avahi_entry_group_cb (AvahiEntryGroup *group,
++				      AvahiEntryGroupState state,
++				      void *userdata);
++static void	avahi_client_cb (AvahiClient *client,
++				 AvahiClientState state,
++				 void *userdata);
++#endif /* HAVE_AVAHI */
++
+ #ifdef HAVE_LDAP
+ static const char * const ldap_attrs[] =/* CUPS LDAP attributes */
+ 		{
+@@ -283,10 +308,10 @@ cupsdDeregisterPrinter(
+     ldap_dereg_printer(p);
+ #endif /* HAVE_LDAP */
+ 
+-#ifdef HAVE_DNSSD
+-  if (removeit && (BrowseLocalProtocols & BROWSE_DNSSD) && DNSSDRef)
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
++  if (removeit && (BrowseLocalProtocols & BROWSE_DNSSD))
+     dnssdDeregisterPrinter(p);
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ }
+ 
+ 
+@@ -702,10 +727,10 @@ cupsdRegisterPrinter(cupsd_printer_t *p)
+     slpRegisterPrinter(p); */
+ #endif /* HAVE_LIBSLP */
+ 
+-#ifdef HAVE_DNSSD
+-  if ((BrowseLocalProtocols & BROWSE_DNSSD) && DNSSDRef)
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
++  if ((BrowseLocalProtocols & BROWSE_DNSSD))
+     dnssdRegisterPrinter(p);
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ }
+ 
+ 
+@@ -1419,6 +1444,36 @@ ldap_disconnect(LDAP *ld)		/* I - LDAP h
+ #endif /* HAVE_LDAP */
+ 
+ 
++#ifdef HAVE_AVAHI
++/*
++ * 'cupsdStartAvahiClient()' - Start an Avahi client if needed
++ */
++
++void
++cupsdStartAvahiClient(void)
++{
++  int error = 0;
++
++  if (!AvahiCupsClient && !AvahiCupsClientConnecting)
++  {
++    if (!AvahiCupsPollHandle)
++      AvahiCupsPollHandle = avahi_cups_poll_new ();
++
++    if (AvahiCupsPollHandle)
++    {
++      if (avahi_client_new (avahi_cups_poll_get (AvahiCupsPollHandle),
++			    AVAHI_CLIENT_NO_FAIL,
++			    avahi_client_cb, NULL,
++			    &error) != NULL)
++	AvahiCupsClientConnecting = 1;
++      else
++	cupsdLogMessage (CUPSD_LOG_WARN, "Avahi client failed: %d", error);
++    }
++  }
++}
++#endif /* HAVE_AVAHI */
++
++  
+ /*
+  * 'cupsdStartBrowsing()' - Start sending and receiving broadcast information.
+  */
+@@ -1542,13 +1597,16 @@ cupsdStartBrowsing(void)
+   else
+     BrowseSocket = -1;
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+   if ((BrowseLocalProtocols | BrowseRemoteProtocols) & BROWSE_DNSSD)
+   {
++#ifdef HAVE_DNSSD
+     DNSServiceErrorType error;		/* Error from service creation */
++#endif /* HAVE_DNSSD */
+     cupsd_listener_t	*lis;		/* Current listening socket */
+ 
+ 
++#ifdef HAVE_DNSSD
+    /*
+     * First create a "master" connection for all registrations...
+     */
+@@ -1573,6 +1631,7 @@ cupsdStartBrowsing(void)
+       fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
+ 
+       cupsdAddSelect(fd, (cupsd_selfunc_t)dnssdUpdate, NULL, NULL);
++#endif /* HAVE_DNSSD */
+ 
+      /*
+       * Then get the port we use for registrations.  If we are not listening
+@@ -1598,17 +1657,23 @@ cupsdStartBrowsing(void)
+       */
+ 
+       if (BrowseRemoteProtocols & BROWSE_DNSSD)
+-        DNSSDPrinters = cupsArrayNew((cups_array_func_t)dnssdComparePrinters,
+-	                             NULL);
++	  DNSSDPrinters = cupsArrayNew(NULL, NULL);
+ 
+      /*
+       * Set the computer name and register the web interface...
+       */
+ 
+       cupsdUpdateDNSSDName();
++
++#ifdef HAVE_AVAHI
++      cupsdStartAvahiClient ();
++#endif /* HAVE_AVAHI */
++
++#ifdef HAVE_DNSSD
+     }
+-  }
+ #endif /* HAVE_DNSSD */
++  }
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ 
+ #ifdef HAVE_LIBSLP
+   if ((BrowseLocalProtocols | BrowseRemoteProtocols) & BROWSE_SLP)
+@@ -1834,10 +1899,10 @@ cupsdStopBrowsing(void)
+     BrowseSocket = -1;
+   }
+ 
+-#ifdef HAVE_DNSSD
+-  if ((BrowseLocalProtocols & BROWSE_DNSSD) && DNSSDRef)
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
++  if ((BrowseLocalProtocols & BROWSE_DNSSD))
+     dnssdStop();
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ 
+ #ifdef HAVE_LIBSLP
+   if (((BrowseLocalProtocols | BrowseRemoteProtocols) & BROWSE_SLP) &&
+@@ -1902,7 +1967,7 @@ cupsdStopPolling(void)
+ }
+ 
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+ /*
+  * 'cupsdUpdateDNSSDName()' - Update the computer name we use for browsing...
+  */
+@@ -1910,8 +1975,14 @@ cupsdStopPolling(void)
+ void
+ cupsdUpdateDNSSDName(void)
+ {
++#ifdef HAVE_DNSSD
+   DNSServiceErrorType error;		/* Error from service creation */
+   char		webif[1024];		/* Web interface share name */
++#endif /* HAVE_DNSSD */
++#ifdef HAVE_AVAHI
++  int		ret;			/* Error from service creation */
++  char		webif[AVAHI_LABEL_MAX];	/* Web interface share name */
++#endif /* HAVE_AVAHI */
+ #  ifdef HAVE_SYSTEMCONFIGURATION
+   SCDynamicStoreRef sc;			/* Context for dynamic store */
+   CFDictionaryRef btmm;			/* Back-to-My-Mac domains */
+@@ -2042,6 +2113,7 @@ cupsdUpdateDNSSDName(void)
+     else
+       strlcpy(webif, "CUPS Web Interface", sizeof(webif));
+ 
++#ifdef HAVE_DNSSD
+     if (WebIFRef)
+       DNSServiceRefDeallocate(WebIFRef);
+ 
+@@ -2054,9 +2126,45 @@ cupsdUpdateDNSSDName(void)
+ 				    NULL)) != kDNSServiceErr_NoError)
+       cupsdLogMessage(CUPSD_LOG_ERROR,
+ 		      "DNS-SD web interface registration failed: %d", error);
++#endif /* HAVE_DNSSD */
++
++#ifdef HAVE_AVAHI
++    if (!AvahiCupsClient)
++     /*
++      * Client not yet running.
++      */
++      return;
++
++    if (AvahiWebIFGroup)
++      avahi_entry_group_reset (AvahiWebIFGroup);
++    else
++      AvahiWebIFGroup = avahi_entry_group_new (AvahiCupsClient,
++					       avahi_entry_group_cb,
++					       NULL);
++
++    if (AvahiWebIFGroup)
++    {
++      ret = avahi_entry_group_add_service (AvahiWebIFGroup,
++					   AVAHI_IF_UNSPEC,
++					   AVAHI_PROTO_UNSPEC,
++					   0, /* flags */
++					   webif, /* name */
++					   "_http._tcp", /* type */
++					   NULL, /* domain */
++					   NULL, /* host */
++					   DNSSDPort, /* port */
++					   "path=/", NULL);
++      if (ret == 0)
++	ret = avahi_entry_group_commit (AvahiWebIFGroup);
++
++      if (ret != 0)
++	cupsdLogMessage (CUPSD_LOG_ERROR,
++			 "Avahi web interface registration failed: %d", ret);
++    }
++#endif /* HAVE_AVAHI */
+   }
+ }
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ 
+ 
+ #ifdef HAVE_LDAP
+@@ -2334,13 +2442,15 @@ dnssdAddAlias(const void *key,		/* I - K
+                     "Bad Back to My Mac domain in dynamic store!");
+ }
+ #  endif /* HAVE_COREFOUNDATION */
++#endif /* HAVE_DNSSD */
+ 
+ 
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+ /*
+  * 'dnssdBuildTxtRecord()' - Build a TXT record from printer info.
+  */
+ 
+-static char *				/* O - TXT record */
++static cupsd_txt_record_t		/* O - TXT record */
+ dnssdBuildTxtRecord(
+     int             *txt_len,		/* O - TXT record length */
+     cupsd_printer_t *p,			/* I - Printer information */
+@@ -2379,7 +2489,12 @@ dnssdBuildTxtRecord(
+   keyvalue[i  ][0] = "ty";
+   keyvalue[i++][1] = p->make_model ? p->make_model : "Unknown";
+ 
+-  snprintf(admin_hostname, sizeof(admin_hostname), "%s.local.", DNSSDHostName);
++  snprintf(admin_hostname, sizeof(admin_hostname),
++	   "%s.local"
++#ifdef HAVE_DNSSD
++	   "." /* terminating dot no good for Avahi */
++#endif /* HAVE_DNSSD */
++	   , DNSSDHostName);
+   httpAssembleURIf(HTTP_URI_CODING_ALL, adminurl_str, sizeof(adminurl_str),
+                    "http", NULL, admin_hostname, DNSSDPort, "/%s/%s",
+ 		   (p->type & CUPS_PRINTER_CLASS) ? "classes" : "printers",
+@@ -2462,19 +2577,12 @@ dnssdBuildTxtRecord(
+   * Then pack them into a proper txt record...
+   */
+ 
++#ifdef HAVE_DNSSD
+   return (dnssdPackTxtRecord(txt_len, keyvalue, i));
+-}
+-
+-
+-/*
+- * 'dnssdComparePrinters()' - Compare the registered names of two printers.
+- */
+-
+-static int				/* O - Result of comparison */
+-dnssdComparePrinters(cupsd_printer_t *a,/* I - First printer */
+-                     cupsd_printer_t *b)/* I - Second printer */
+-{
+-  return (_cups_strcasecmp(a->reg_name, b->reg_name));
++#endif /* HAVE_DNSSD */
++#ifdef HAVE_AVAHI
++  return (avahiPackTxtRecord(keyvalue, i));
++#endif /* HAVE_AVAHI */
+ }
+ 
+ 
+@@ -2489,6 +2597,10 @@ dnssdDeregisterPrinter(
+ {
+   cupsdLogMessage(CUPSD_LOG_DEBUG2, "dnssdDeregisterPrinter(%s)", p->name);
+ 
++#ifdef HAVE_DNSSD
++  if (!DNSSDRef)
++    return;
++
+  /*
+   * Closing the socket deregisters the service
+   */
+@@ -2524,6 +2636,24 @@ dnssdDeregisterPrinter(
+     free(p->printer_txt);
+     p->printer_txt = NULL;
+   }
++#endif /* HAVE_DNSSD */
++
++#ifdef HAVE_AVAHI
++  if (p->avahi_group)
++    {
++      avahi_entry_group_reset (p->avahi_group);
++      avahi_entry_group_free (p->avahi_group);
++      p->avahi_group = NULL;
++
++      if (p->ipp_txt)
++	avahi_string_list_free (p->ipp_txt);
++
++      if (p->printer_txt)
++	avahi_string_list_free (p->printer_txt);
++
++      p->ipp_txt = p->printer_txt = NULL;
++    }
++#endif /* HAVE_AVAHI */
+ 
+  /*
+   * Remove the printer from the array of DNS-SD printers, then clear the
+@@ -2533,8 +2663,10 @@ dnssdDeregisterPrinter(
+   cupsArrayRemove(DNSSDPrinters, p);
+   cupsdClearString(&p->reg_name);
+ }
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ 
+ 
++#ifdef HAVE_DNSSD
+ /*
+  * 'dnssdPackTxtRecord()' - Pack an array of key/value pairs into the
+  *                          TXT record format.
+@@ -2644,8 +2776,10 @@ dnssdRegisterCallback(
+     LastEvent |= CUPSD_EVENT_PRINTER_MODIFIED;
+   }
+ }
++#endif /* HAVE_DNSSD */
+ 
+ 
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+ /*
+  * 'dnssdRegisterPrinter()' - Start sending broadcast information for a printer
+  *		              or update the broadcast contents.
+@@ -2654,20 +2788,40 @@ dnssdRegisterCallback(
+ static void
+ dnssdRegisterPrinter(cupsd_printer_t *p)/* I - Printer */
+ {
++#ifdef HAVE_DNSSD
+   DNSServiceErrorType	se;		/* dnssd errors */
+   char			*ipp_txt,	/* IPP TXT record buffer */
+ 			*printer_txt,	/* LPD TXT record buffer */
+-			name[1024],	/* Service name */
+-			*nameptr;	/* Pointer into name */
++			name[1024];	/* Service name */
+   int			ipp_len,	/* IPP TXT record length */
+ 			printer_len,	/* LPD TXT record length */
+ 			printer_port;	/* LPD port number */
++#endif /* HAVE_DNSSD */
++#ifdef HAVE_AVAHI
++  int			ret;		/* Error code */
++  AvahiStringList	*ipp_txt,	/* IPP TXT record */
++			*printer_txt;	/* LPD TXT record */
++  char			name[AVAHI_LABEL_MAX],	/* Service name */
++			fullsubtype[AVAHI_LABEL_MAX]; /* Full subtype */
++  char			*regtype_copy,	/* Writeable copy of reg type */
++			*subtype,	/* Current service sub type */
++			*nextsubtype;	/* Next service sub type */
++#endif /* HAVE_AVAHI */
++  char			*nameptr;	/* Pointer into name */
+   const char		*regtype;	/* Registration type */
+ 
+ 
++#ifdef HAVE_DNSSD
++  if (!DNSSDRef)
++    return;
++
+   cupsdLogMessage(CUPSD_LOG_DEBUG2, "dnssdRegisterPrinter(%s) %s", p->name,
+                   !p->ipp_ref ? "new" : "update");
+-
++#endif /* HAVE_DNSSD */
++#ifdef HAVE_AVAHI
++  cupsdLogMessage(CUPSD_LOG_DEBUG2, "dnssdRegisterPrinter(%s) %s", p->name,
++		  !p->avahi_group ? "new" : "update");
++#endif /* HAVE_AVAHI */
+  /*
+   * If per-printer sharing was just disabled make sure we're not
+   * registered before returning.
+@@ -2686,12 +2840,36 @@ dnssdRegisterPrinter(cupsd_printer_t *p)
+   if (p->info && strlen(p->info) > 0)
+   {
+     if (DNSSDComputerName)
+-      snprintf(name, sizeof(name), "%s @ %s", p->info, DNSSDComputerName);
++    {
++     /*
++      * Make sure there is room for at least 15 characters of
++      * DNSSDComputerName.
++      */
++
++      assert(sizeof(name) >= 15 + 4);
++      nameptr = name + strlcpy(name, p->info,
++			       sizeof(name) - 4 -
++			       strnlen(DNSSDComputerName, 15));
++      nameptr += strlcpy(nameptr, " @ ", sizeof(name) - (nameptr - name));
++      strlcpy(nameptr, DNSSDComputerName, sizeof(name) - (nameptr - name));
++    }
+     else
+       strlcpy(name, p->info, sizeof(name));
+   }
+   else if (DNSSDComputerName)
+-    snprintf(name, sizeof(name), "%s @ %s", p->name, DNSSDComputerName);
++  {
++   /*
++    * Make sure there is room for at least 15 characters of
++    * DNSSDComputerName.
++    */
++
++    assert(sizeof(name) >= 15 + 4);
++    nameptr = name + strlcpy(name, p->info,
++			     sizeof(name) - 4 -
++			     strnlen(DNSSDComputerName, 15));
++    nameptr += strlcpy(nameptr, " @ ", sizeof(name) - (nameptr - name));
++    strlcpy(nameptr, DNSSDComputerName, sizeof(name) - (nameptr - name));
++  }
+   else
+     strlcpy(name, p->name, sizeof(name));
+ 
+@@ -2712,6 +2890,7 @@ dnssdRegisterPrinter(cupsd_printer_t *p)
+   * Register IPP and (optionally) LPD...
+   */
+ 
++#ifdef HAVE_DNSSD
+   ipp_len = 0;				/* anti-compiler-warning-code */
+   ipp_txt = dnssdBuildTxtRecord(&ipp_len, p, 0);
+ 
+@@ -2884,6 +3063,209 @@ dnssdRegisterPrinter(cupsd_printer_t *p)
+ 
+   if (printer_txt)
+     free(printer_txt);
++#endif /* HAVE_DNSSD */
++#ifdef HAVE_AVAHI
++  if (!AvahiCupsClient)
++   /*
++    * Client not running yet.  The client callback will call us again later.
++    */
++    return;
++
++  ipp_txt = dnssdBuildTxtRecord(NULL, p, 0);
++  printer_txt = dnssdBuildTxtRecord(NULL, p, 1);
++  regtype = (p->type & CUPS_PRINTER_FAX) ? "_fax-ipp._tcp" : DNSSDRegType;
++
++  if (p->avahi_group && p->ipp_txt && ipp_txt &&
++      !avahi_string_list_equal (p->ipp_txt, ipp_txt))
++  {
++   /*
++    * Update the existing registration...
++    */
++
++    avahi_string_list_free (p->ipp_txt);
++
++    if (p->printer_txt)
++      avahi_string_list_free (p->printer_txt);
++
++   /*
++    * Update the service group entry.
++    */
++
++    regtype_copy = strdup (regtype);
++    subtype = strchr (regtype_copy, ',');
++    if (subtype)
++      *subtype = '\0';
++
++    cupsdLogMessage (CUPSD_LOG_DEBUG,
++		     "Updating TXT record for %s (%s)", name, regtype_copy);
++    ret = avahi_entry_group_update_service_txt_strlst (p->avahi_group,
++						       AVAHI_IF_UNSPEC,
++						       AVAHI_PROTO_UNSPEC,
++						       0, name,
++						       regtype_copy,
++						       NULL, ipp_txt);
++    free (regtype_copy);
++
++    if (ret < 0)
++      goto update_failed;
++
++    p->ipp_txt = ipp_txt;
++    ipp_txt = NULL;
++
++    if (BrowseLocalProtocols & BROWSE_LPD)
++    {
++      ret = avahi_entry_group_update_service_txt_strlst (p->avahi_group,
++							 AVAHI_IF_UNSPEC,
++							 AVAHI_PROTO_UNSPEC,
++							 0, name,
++							 "_printer._tcp", NULL,
++							 printer_txt);
++      if (ret < 0)
++	goto update_failed;
++
++      p->printer_txt = printer_txt;
++      printer_txt = NULL;
++    }
++
++    ret = avahi_entry_group_commit (p->avahi_group);
++    if (ret < 0)
++    {
++    update_failed:
++      cupsdLogMessage (CUPSD_LOG_ERROR,
++		       "Failed to update TXT record for %s: %d",
++		       name, ret);
++      avahi_entry_group_reset (p->avahi_group);
++      avahi_entry_group_free (p->avahi_group);
++      p->avahi_group = NULL;
++      ipp_txt = p->ipp_txt;
++      p->ipp_txt = NULL;
++    }
++  }
++
++  if (!p->avahi_group)
++  {
++   /*
++    * Initial registration.  Use the _fax subtype for fax queues...
++    */
++
++    p->avahi_group = avahi_entry_group_new (AvahiCupsClient,
++					    avahi_entry_group_cb,
++					    p);
++
++    cupsdLogMessage(CUPSD_LOG_DEBUG,
++		    "Registering Avahi printer %s with name \"%s\" and "
++		    "type \"%s\"", p->name, name, regtype);
++
++    if (!p->avahi_group)
++    {
++      ret = 0;
++      goto add_failed;
++    }
++
++   /*
++    * Add each service type (DNSSDRegType may contain several,
++    * separated by commas).
++    */
++
++    subtype = regtype_copy = strdup (regtype);
++    while (subtype && *subtype)
++    {
++      nextsubtype = strchr (subtype, ',');
++      if (nextsubtype)
++	*nextsubtype++ = '\0';
++
++      if (subtype == regtype_copy)
++      {
++       /*
++	* Main type entry.
++	*/
++
++	cupsdLogMessage (CUPSD_LOG_DEBUG,
++			 "Adding TXT record for %s (%s)", name, regtype_copy);
++	ret = avahi_entry_group_add_service_strlst (p->avahi_group,
++						    AVAHI_IF_UNSPEC,
++						    AVAHI_PROTO_UNSPEC,
++						    0, name, regtype_copy,
++						    NULL, NULL,
++						    DNSSDPort,
++						    ipp_txt);
++      }
++      else
++      {
++       /*
++	* Sub-type entry.
++	*/
++
++	snprintf (fullsubtype, sizeof(fullsubtype),
++		  "%s._sub.%s", subtype, regtype_copy);
++	cupsdLogMessage (CUPSD_LOG_DEBUG,
++			 "Adding TXT record for %s (%s)", name, fullsubtype);
++	ret = avahi_entry_group_add_service_subtype (p->avahi_group,
++						     AVAHI_IF_UNSPEC,
++						     AVAHI_PROTO_UNSPEC,
++						     0, name,
++						     regtype_copy,
++						     NULL, fullsubtype);
++      }
++
++      if (ret < 0)
++      {
++	free (regtype_copy);
++	goto add_failed;
++      }
++
++      subtype = nextsubtype;
++    }
++
++    free (regtype_copy);
++    p->ipp_txt = ipp_txt;
++    ipp_txt = NULL;
++
++    if (BrowseLocalProtocols & BROWSE_LPD)
++    {
++      cupsdLogMessage(CUPSD_LOG_DEBUG,
++		      "Registering Avahi printer %s with name \"%s\" and "
++		      "type \"_printer._tcp\"", p->name, name);
++
++      ret = avahi_entry_group_add_service_strlst (p->avahi_group,
++						  AVAHI_IF_UNSPEC,
++						  AVAHI_PROTO_UNSPEC,
++						  0, name,
++						  "_printer._tcp", NULL, NULL,
++						  515,
++						  printer_txt);
++      if (ret < 0)
++	goto add_failed;
++
++      p->printer_txt = printer_txt;
++      printer_txt = NULL;
++    }
++
++    ret = avahi_entry_group_commit (p->avahi_group);
++
++    if (ret < 0)
++    {
++    add_failed:
++      cupsdLogMessage (CUPSD_LOG_ERROR,
++		       "Failed to add Avahi entry for %s: %d",
++		       name, ret);
++      if (p->avahi_group)
++      {
++	avahi_entry_group_reset (p->avahi_group);
++	avahi_entry_group_free (p->avahi_group);
++	p->avahi_group = NULL;
++      }
++      ipp_txt = p->ipp_txt;
++      p->ipp_txt = NULL;
++    }
++  }
++
++  if (ipp_txt)
++    avahi_string_list_free (ipp_txt);
++
++  if (printer_txt)
++    avahi_string_list_free (printer_txt);
++#endif /* HAVE_AVAHI */
+ }
+ 
+ 
+@@ -2896,6 +3278,10 @@ dnssdStop(void)
+ {
+   cupsd_printer_t	*p;		/* Current printer */
+ 
++#ifdef HAVE_DNSSD
++  if (!DNSSDRef)
++    return;
++#endif /* HAVE_DNSSD */
+ 
+  /*
+   * De-register the individual printers
+@@ -2910,12 +3296,23 @@ dnssdStop(void)
+   * Shutdown the rest of the service refs...
+   */
+ 
++#ifdef HAVE_DNSSD
+   if (WebIFRef)
+   {
+     DNSServiceRefDeallocate(WebIFRef);
+     WebIFRef = NULL;
+   }
++#endif /* HAVE_DNSSD */
++#ifdef HAVE_AVAHI
++  if (AvahiWebIFGroup)
++  {
++    avahi_entry_group_reset (AvahiWebIFGroup);
++    avahi_entry_group_free (AvahiWebIFGroup);
++    AvahiWebIFGroup = NULL;
++  }
++#endif /* HAVE_AVAHI */
+ 
++#ifdef HAVE_DNSSD
+   if (RemoteRef)
+   {
+     DNSServiceRefDeallocate(RemoteRef);
+@@ -2926,14 +3323,17 @@ dnssdStop(void)
+ 
+   DNSServiceRefDeallocate(DNSSDRef);
+   DNSSDRef = NULL;
++#endif /* HAVE_DNSSD */
+ 
+   cupsArrayDelete(DNSSDPrinters);
+   DNSSDPrinters = NULL;
+ 
+   DNSSDPort = 0;
+ }
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ 
+ 
++#ifdef HAVE_DNSSD
+ /*
+  * 'dnssdUpdate()' - Handle DNS-SD queries.
+  */
+@@ -2955,6 +3355,153 @@ dnssdUpdate(void)
+ #endif /* HAVE_DNSSD */
+ 
+ 
++#ifdef HAVE_AVAHI
++/*
++ * 'avahiPackTxtRecord()' - Pack an array of key/value pairs into an
++ *                          AvahiStringList.
++ */
++
++static AvahiStringList *		/* O - new string list */
++avahiPackTxtRecord(char *keyvalue[][2],	/* I - Table of key value pairs */
++		   int count)		/* I - Number of items in table */
++{
++  AvahiStringList *strlst = NULL;
++  char **elements;
++  size_t len;
++  int i = 0;
++
++  elements = malloc ((1 + count) * sizeof (char *));
++  if (!elements)
++    goto cleanup;
++
++  for (i = 0; i < count; i++)
++    {
++      len = (1 + strlen (keyvalue[i][0]) +
++	     (keyvalue[i][1] ? 1 + strlen (keyvalue[i][1]) : 1));
++      elements[i] = malloc (len * sizeof (char));
++      if (!elements[i])
++	goto cleanup;
++
++      snprintf (elements[i], len, "%s=%s", keyvalue[i][0], keyvalue[i][1]);
++    }
++
++  strlst = avahi_string_list_new_from_array ((const char **) elements, count);
++
++cleanup:
++  while (--i >= 0)
++    free (elements[i]);
++
++  free (elements);
++  return (strlst);
++}
++
++
++/*
++ * 'avahi_entry_group_cb()' - Avahi entry group callback function.
++ */
++static void
++avahi_entry_group_cb (AvahiEntryGroup *group,
++		      AvahiEntryGroupState state,
++		      void *userdata)
++{
++  char *name;
++
++  if (userdata)
++    name = ((cupsd_printer_t *) userdata)->reg_name;
++  else
++    name = "CUPS web interface";
++
++  switch (state)
++  {
++  case AVAHI_ENTRY_GROUP_UNCOMMITED:
++  case AVAHI_ENTRY_GROUP_REGISTERING:
++    break;
++
++  case AVAHI_ENTRY_GROUP_ESTABLISHED:
++    cupsdLogMessage (CUPSD_LOG_DEBUG,
++		     "Avahi entry group established for %s", name);
++    break;
++
++  default:
++    cupsdLogMessage (CUPSD_LOG_DEBUG,
++		     "Avahi entry group %s has state %d",
++		     name, state);
++    break;
++  }
++}
++
++
++/*
++ * 'avahi_client_cb()' - Avahi client callback function.
++ */
++static void
++avahi_client_cb (AvahiClient *client,
++		 AvahiClientState state,
++		 void *userdata)
++{
++  cupsd_printer_t *printer;
++  switch (state)
++  {
++  case AVAHI_CLIENT_S_RUNNING:
++   /*
++    * Avahi client started successfully.
++    */
++    AvahiCupsClient = client;
++    AvahiCupsClientConnecting = 0;
++    cupsdLogMessage (CUPSD_LOG_DEBUG, "Avahi client started");
++
++    cupsdUpdateDNSSDName ();
++
++    for (printer = (cupsd_printer_t *)cupsArrayFirst(Printers);
++	 printer;
++	 printer = (cupsd_printer_t *)cupsArrayNext(Printers))
++      if (Browsing && (BrowseLocalProtocols & BROWSE_DNSSD) &&
++	  (!(printer->type & (CUPS_PRINTER_REMOTE | CUPS_PRINTER_IMPLICIT |
++			      CUPS_PRINTER_SCANNER))) && printer->shared)
++	dnssdRegisterPrinter (printer);
++
++    break;
++
++  case AVAHI_CLIENT_CONNECTING:
++   /*
++    * No Avahi daemon, client is waiting.
++    */
++    cupsdLogMessage (CUPSD_LOG_DEBUG, "Avahi client connecting");
++    break;
++
++  case AVAHI_CLIENT_S_REGISTERING:
++    /*
++     * Not yet registered.
++     */
++    cupsdLogMessage (CUPSD_LOG_DEBUG, "Avahi client registering");
++    break;
++
++  case AVAHI_CLIENT_FAILURE:
++   /*
++    * Avahi client failed, close it to allow a clean restart.
++    */
++    cupsdLogMessage (CUPSD_LOG_ERROR,
++		     "Avahi client failed, "
++		     "closing client to allow a clean restart");
++
++    for (printer = (cupsd_printer_t *)cupsArrayFirst(Printers);
++	 printer;
++	 printer = (cupsd_printer_t *)cupsArrayNext(Printers))
++      dnssdDeregisterPrinter (printer);
++
++    avahi_client_free(client);
++    AvahiCupsClientConnecting = 0;
++    AvahiCupsClient = NULL;
++
++    break;
++
++  default:
++    cupsdLogMessage (CUPSD_LOG_DEBUG, "Avahi client state: %d", state);
++  }
++}
++#endif /* HAVE_AVAHI */
++
++
+ /*
+  * 'get_auth_info_required()' - Get the auth-info-required value to advertise.
+  */
+diff -up cups-1.5.2/scheduler/dirsvc.h.avahi-5-services cups-1.5.2/scheduler/dirsvc.h
+--- cups-1.5.2/scheduler/dirsvc.h.avahi-5-services	2011-03-21 02:12:14.000000000 +0000
++++ cups-1.5.2/scheduler/dirsvc.h	2012-03-14 15:08:25.711611808 +0000
+@@ -31,6 +31,10 @@
+ #  endif /* HAVE_LDAP_SSL_H */
+ #endif /* HAVE_LDAP */
+ 
++#ifdef HAVE_AVAHI
++#  include <avahi-client/publish.h>
++#endif /* HAVE_AVAHI */
++
+ /*
+  * Browse protocols...
+  */
+@@ -131,19 +135,22 @@ VAR int			PollPipe	VALUE(0);
+ VAR cupsd_statbuf_t	*PollStatusBuffer VALUE(NULL);
+ 					/* Status buffer for pollers */
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+ VAR char		*DNSSDComputerName VALUE(NULL),
+ 					/* Computer/server name */
+ 			*DNSSDHostName	VALUE(NULL),
+ 					/* Hostname */
+ 			*DNSSDRegType VALUE(NULL);
+ 					/* Bonjour registration type */
+-VAR cups_array_t	*DNSSDAlias	VALUE(NULL);
+-					/* List of dynamic ServerAlias's */
+ VAR int			DNSSDPort	VALUE(0);
+ 					/* Port number to register */
+ VAR cups_array_t	*DNSSDPrinters	VALUE(NULL);
+ 					/* Printers we have registered */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
++
++#ifdef HAVE_DNSSD
++VAR cups_array_t	*DNSSDAlias	VALUE(NULL);
++					/* List of dynamic ServerAlias's */
+ VAR DNSServiceRef	DNSSDRef	VALUE(NULL),
+ 					/* Master DNS-SD service reference */
+ 			WebIFRef	VALUE(NULL),
+@@ -152,6 +159,17 @@ VAR DNSServiceRef	DNSSDRef	VALUE(NULL),
+ 					/* Remote printer browse reference */
+ #endif /* HAVE_DNSSD */
+ 
++#ifdef HAVE_AVAHI
++VAR AvahiCupsPoll	*AvahiCupsPollHandle	VALUE(NULL);
++					/* AvahiCupsPoll object */
++VAR AvahiClient		*AvahiCupsClient	VALUE(NULL);
++					/* AvahiClient object */
++VAR int			AvahiCupsClientConnecting	VALUE(0);
++					/* Is AvahiClient object connecting? */
++VAR AvahiEntryGroup	*AvahiWebIFGroup	VALUE(NULL);
++					/* Web interface entry group */
++#endif /* HAVE_AVAHI */
++
+ #ifdef HAVE_LIBSLP
+ VAR SLPHandle		BrowseSLPHandle	VALUE(NULL);
+ 					/* SLP API handle */
+@@ -195,13 +213,14 @@ extern void	cupsdRegisterPrinter(cupsd_p
+ extern void	cupsdRestartPolling(void);
+ extern void	cupsdSaveRemoteCache(void);
+ extern void	cupsdSendBrowseList(void);
++extern void	cupsdStartAvahiClient(void);
+ extern void	cupsdStartBrowsing(void);
+ extern void	cupsdStartPolling(void);
+ extern void	cupsdStopBrowsing(void);
+ extern void	cupsdStopPolling(void);
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+ extern void	cupsdUpdateDNSSDName(void);
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ #ifdef HAVE_LDAP
+ extern void	cupsdUpdateLDAPBrowse(void);
+ #endif /* HAVE_LDAP */
+diff -up cups-1.5.2/scheduler/ipp.c.avahi-5-services cups-1.5.2/scheduler/ipp.c
+--- cups-1.5.2/scheduler/ipp.c.avahi-5-services	2012-03-14 15:04:17.665305560 +0000
++++ cups-1.5.2/scheduler/ipp.c	2012-03-14 15:08:25.715611813 +0000
+@@ -6099,7 +6099,7 @@ copy_printer_attrs(
+     ippAddDate(con->response, IPP_TAG_PRINTER, "printer-current-time",
+                ippTimeToDate(curtime));
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+   if (!ra || cupsArrayFind(ra, "printer-dns-sd-name"))
+   {
+     if (printer->reg_name)
+@@ -6109,7 +6109,7 @@ copy_printer_attrs(
+       ippAddInteger(con->response, IPP_TAG_PRINTER, IPP_TAG_NOVALUE,
+                    "printer-dns-sd-name", 0);
+   }
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ 
+   if (!ra || cupsArrayFind(ra, "printer-error-policy"))
+     ippAddString(con->response, IPP_TAG_PRINTER, IPP_TAG_NAME,
+diff -up cups-1.5.2/scheduler/main.c.avahi-5-services cups-1.5.2/scheduler/main.c
+--- cups-1.5.2/scheduler/main.c.avahi-5-services	2012-03-14 15:06:36.511476986 +0000
++++ cups-1.5.2/scheduler/main.c	2012-03-14 15:08:25.718611817 +0000
+@@ -120,6 +120,10 @@ main(int  argc,				/* I - Number of comm
+   cupsd_listener_t	*lis;		/* Current listener */
+   time_t		current_time,	/* Current time */
+ 			activity,	/* Client activity timer */
++#ifdef HAVE_AVAHI
++			avahi_client_time, /* Time for next Avahi client
++					      check */
++#endif /* HAVE_AVAHI */
+ 			browse_time,	/* Next browse send time */
+ 			senddoc_time,	/* Send-Document time */
+ 			expire_time,	/* Subscription expire time */
+@@ -672,6 +676,9 @@ main(int  argc,				/* I - Number of comm
+   */
+ 
+   current_time  = time(NULL);
++#ifdef HAVE_AVAHI
++  avahi_client_time = current_time;
++#endif /* HAVE_AVAHI */
+   browse_time   = current_time;
+   event_time    = current_time;
+   expire_time   = current_time;
+@@ -894,6 +901,16 @@ main(int  argc,				/* I - Number of comm
+     tmo = cupsdNextTimeout (&tmo_delay);
+     if (tmo && tmo_delay == 0)
+       cupsdRunTimeout (tmo);
++
++   /*
++    * Try to restart the Avahi client every 10 seconds if needed...
++    */
++
++    if ((current_time - avahi_client_time) >= 10)
++    {
++      avahi_client_time = current_time;
++      cupsdStartAvahiClient();
++    }
+ #endif /* HAVE_AVAHI */
+ 
+ #ifndef __APPLE__
+diff -up cups-1.5.2/scheduler/printers.c.avahi-5-services cups-1.5.2/scheduler/printers.c
+--- cups-1.5.2/scheduler/printers.c.avahi-5-services	2012-03-14 15:04:17.646305537 +0000
++++ cups-1.5.2/scheduler/printers.c	2012-03-14 15:08:25.720611819 +0000
+@@ -883,9 +883,9 @@ cupsdDeletePrinter(
+   cupsdClearString(&p->alert);
+   cupsdClearString(&p->alert_description);
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+   cupsdClearString(&p->pdl);
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ 
+   cupsArrayDelete(p->filetypes);
+ 
+@@ -3787,7 +3787,7 @@ add_printer_formats(cupsd_printer_t *p)
+     attr->values[i].string.text = _cupsStrAlloc(mimetype);
+   }
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+   {
+     char		pdl[1024];	/* Buffer to build pdl list */
+     mime_filter_t	*filter;	/* MIME filter looping var */
+@@ -3843,7 +3843,7 @@ add_printer_formats(cupsd_printer_t *p)
+ 
+     cupsdSetString(&p->pdl, pdl);
+   }
+-#endif /* HAVE_DNSSD */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+ }
+ 
+ 
+diff -up cups-1.5.2/scheduler/printers.h.avahi-5-services cups-1.5.2/scheduler/printers.h
+--- cups-1.5.2/scheduler/printers.h.avahi-5-services	2011-03-18 18:42:46.000000000 +0000
++++ cups-1.5.2/scheduler/printers.h	2012-03-14 15:08:25.721611820 +0000
+@@ -16,6 +16,9 @@
+ #ifdef HAVE_DNSSD
+ #  include <dns_sd.h>
+ #endif /* HAVE_DNSSD */
++#ifdef HAVE_AVAHI
++#  include "avahi.h"
++#endif /* HAVE_AVAHI */
+ #include <cups/pwg-private.h>
+ 
+ 
+@@ -95,16 +98,23 @@ struct cupsd_printer_s
+   time_t	marker_time;		/* Last time marker attributes were updated */
+   _ppd_cache_t	*pc;			/* PPD cache and mapping data */
+ 
+-#ifdef HAVE_DNSSD
++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+   char		*reg_name,		/* Name used for service registration */
+-		*pdl,			/* pdl value for TXT record */
+-		*ipp_txt,		/* IPP TXT record contents */
++		*pdl;			/* pdl value for TXT record */
++#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
++#ifdef HAVE_DNSSD
++  char		*ipp_txt,		/* IPP TXT record contents */
+ 		*printer_txt;		/* LPD TXT record contents */
+   int		ipp_len,		/* IPP TXT record length */
+ 		printer_len;		/* LPD TXT record length */
+   DNSServiceRef	ipp_ref,		/* Reference for _ipp._tcp,_cups */
+ 		printer_ref;		/* Reference for _printer._tcp */
+ #endif /* HAVE_DNSSD */
++#ifdef HAVE_AVAHI
++  AvahiStringList *ipp_txt,		/* IPP TXT record */
++		*printer_txt;		/* LPD TXT record */
++  AvahiEntryGroup *avahi_group;		/* Avahi entry group */
++#endif /* HAVE_AVAHI */
+ };
+ 
+