first public release of samba4 code

(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)

1 files changed, 1293 insertions, 0 deletions

diff --git a/source4/printing/print_cups.c b/source4/printing/print_cups.c
new file mode 100644
index 0000000000..7cf21c966e
--- /dev/null
+++ b/source4/printing/print_cups.c
@@ -0,0 +1,1293 @@
+/*
+ * Support code for the Common UNIX Printing System ("CUPS")
+ *
+ * Copyright 1999-2003 by Michael R Sweet.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "printing.h"
+
+#ifdef HAVE_CUPS
+#include <cups/cups.h>
+#include <cups/language.h>
+
+
+/*
+ * CUPS printing interface definitions...
+ */
+
+static int cups_job_delete(int snum, struct printjob *pjob);
+static int cups_job_pause(int snum, struct printjob *pjob);
+static int cups_job_resume(int snum, struct printjob *pjob);
+static int cups_job_submit(int snum, struct printjob *pjob);
+static int cups_queue_get(int snum, print_queue_struct **q,
+                          print_status_struct *status);
+static int cups_queue_pause(int snum);
+static int cups_queue_resume(int snum);
+
+
+struct printif	cups_printif =
+		{
+		  cups_queue_get,
+		  cups_queue_pause,
+		  cups_queue_resume,
+		  cups_job_delete,
+		  cups_job_pause,
+		  cups_job_resume,
+		  cups_job_submit,
+		};
+
+/*
+ * 'cups_passwd_cb()' - The CUPS password callback...
+ */
+
+static const char *				/* O - Password or NULL */
+cups_passwd_cb(const char *prompt)	/* I - Prompt */
+{
+ /*
+  * Always return NULL to indicate that no password is available...
+  */
+
+  return (NULL);
+}
+
+
+/*
+ * 'cups_printer_fn()' - Call a function for every printer known to the
+ *                       system.
+ */
+
+void cups_printer_fn(void (*fn)(char *, char *))
+{
+	/* I - Function to call */
+	http_t		*http;		/* HTTP connection to server */
+	ipp_t		*request,	/* IPP Request */
+			*response;	/* IPP Response */
+	ipp_attribute_t	*attr;		/* Current attribute */
+	cups_lang_t	*language;	/* Default language */
+	char		*name,		/* printer-name attribute */
+			*make_model,	/* printer-make-and-model attribute */
+			*info;		/* printer-info attribute */
+	static const char *requested[] =/* Requested attributes */
+			{
+			  "printer-name",
+			  "printer-make-and-model",
+			  "printer-info"
+			};       
+
+
+	DEBUG(5,("cups_printer_fn(%p)\n", fn));
+
+       /*
+        * Make sure we don't ask for passwords...
+	*/
+
+        cupsSetPasswordCB(cups_passwd_cb);
+
+       /*
+	* Try to connect to the server...
+	*/
+
+	if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+	{
+		DEBUG(0,("Unable to connect to CUPS server %s - %s\n", 
+			 cupsServer(), strerror(errno)));
+		return;
+	}
+
+       /*
+	* Build a CUPS_GET_PRINTERS request, which requires the following
+	* attributes:
+	*
+	*    attributes-charset
+	*    attributes-natural-language
+	*    requested-attributes
+	*/
+
+	request = ippNew();
+
+	request->request.op.operation_id = CUPS_GET_PRINTERS;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+                     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+                     "attributes-natural-language", NULL, language->language);
+
+        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
+	              "requested-attributes",
+		      (sizeof(requested) / sizeof(requested[0])),
+		      NULL, requested);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+	if ((response = cupsDoRequest(http, request, "/")) == NULL)
+	{
+		DEBUG(0,("Unable to get printer list - %s\n",
+			 ippErrorString(cupsLastError())));
+		httpClose(http);
+		return;
+	}
+
+	for (attr = response->attrs; attr != NULL;)
+	{
+	       /*
+		* Skip leading attributes until we hit a printer...
+		*/
+
+		while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
+			attr = attr->next;
+
+		if (attr == NULL)
+        		break;
+
+	       /*
+		* Pull the needed attributes from this printer...
+		*/
+
+		name       = NULL;
+		make_model = NULL;
+		info       = NULL;
+
+		while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER)
+		{
+        		if (strcmp(attr->name, "printer-name") == 0 &&
+			    attr->value_tag == IPP_TAG_NAME)
+				name = attr->values[0].string.text;
+
+        		if (strcmp(attr->name, "printer-make-and-model") == 0 &&
+			    attr->value_tag == IPP_TAG_TEXT)
+				make_model = attr->values[0].string.text;
+
+        		if (strcmp(attr->name, "printer-info") == 0 &&
+			    attr->value_tag == IPP_TAG_TEXT)
+				info = attr->values[0].string.text;
+
+        		attr = attr->next;
+		}
+
+	       /*
+		* See if we have everything needed...
+		*/
+
+		if (name == NULL)
+			break;
+
+ 		if (info == NULL || !info[0])
+			(*fn)(name, make_model);
+		else
+			(*fn)(name, info);
+		
+
+	}
+
+	ippDelete(response);
+
+
+       /*
+	* Build a CUPS_GET_CLASSES request, which requires the following
+	* attributes:
+	*
+	*    attributes-charset
+	*    attributes-natural-language
+	*    requested-attributes
+	*/
+
+	request = ippNew();
+
+	request->request.op.operation_id = CUPS_GET_CLASSES;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+                     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+                     "attributes-natural-language", NULL, language->language);
+
+        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
+	              "requested-attributes",
+		      (sizeof(requested) / sizeof(requested[0])),
+		      NULL, requested);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+	if ((response = cupsDoRequest(http, request, "/")) == NULL)
+	{
+		DEBUG(0,("Unable to get printer list - %s\n",
+			 ippErrorString(cupsLastError())));
+		httpClose(http);
+		return;
+	}
+
+	for (attr = response->attrs; attr != NULL;)
+	{
+	       /*
+		* Skip leading attributes until we hit a printer...
+		*/
+
+		while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
+			attr = attr->next;
+
+		if (attr == NULL)
+        		break;
+
+	       /*
+		* Pull the needed attributes from this printer...
+		*/
+
+		name       = NULL;
+		make_model = NULL;
+		info       = NULL;
+
+		while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER)
+		{
+        		if (strcmp(attr->name, "printer-name") == 0 &&
+			    attr->value_tag == IPP_TAG_NAME)
+				name = attr->values[0].string.text;
+
+        		if (strcmp(attr->name, "printer-make-and-model") == 0 &&
+			    attr->value_tag == IPP_TAG_TEXT)
+				make_model = attr->values[0].string.text;
+
+        		if (strcmp(attr->name, "printer-info") == 0 &&
+			    attr->value_tag == IPP_TAG_TEXT)
+				info = attr->values[0].string.text;
+
+        		attr = attr->next;
+		}
+
+	       /*
+		* See if we have everything needed...
+		*/
+
+		if (name == NULL)
+			break;
+
+ 		if (info == NULL || !info[0])
+			(*fn)(name, make_model);
+		else
+			(*fn)(name, info);
+		
+
+	}
+
+	ippDelete(response);
+
+       /*
+        * Close the connection to the server...
+	*/
+
+	httpClose(http);
+}
+
+
+/*
+ * 'cups_printername_ok()' - Provide the equivalent of pcap_printername_ok()
+ *                           for CUPS.
+ * O - 1 if printer name OK
+ * I - Name of printer 
+ */
+int cups_printername_ok(const char *name)
+{
+	http_t		*http;		/* HTTP connection to server */
+	ipp_t		*request,	/* IPP Request */
+			*response;	/* IPP Response */
+	cups_lang_t	*language;	/* Default language */
+	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
+
+
+	DEBUG(5,("cups_printername_ok(\"%s\")\n", name));
+
+       /*
+        * Make sure we don't ask for passwords...
+	*/
+
+        cupsSetPasswordCB(cups_passwd_cb);
+
+       /*
+	* Try to connect to the server...
+	*/
+
+	if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+	{
+		DEBUG(3,("Unable to connect to CUPS server %s - %s\n", 
+			 cupsServer(), strerror(errno)));
+		return (0);
+	}
+
+       /*
+	* Build an IPP_GET_PRINTER_ATTRS request, which requires the following
+	* attributes:
+	*
+	*    attributes-charset
+	*    attributes-natural-language
+	*    requested-attributes
+	*    printer-uri
+	*/
+
+	request = ippNew();
+
+	request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+                     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+                     "attributes-natural-language", NULL, language->language);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
+                     "requested-attributes", NULL, "printer-uri");
+
+	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s", name);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
+                     "printer-uri", NULL, uri);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+	if ((response = cupsDoRequest(http, request, "/")) == NULL)
+	{
+		DEBUG(3,("Unable to get printer status for %s - %s\n", name,
+			 ippErrorString(cupsLastError())));
+		httpClose(http);
+		return (0);
+	}
+
+	httpClose(http);
+
+	if (response->request.status.status_code >= IPP_OK_CONFLICT)
+	{
+		DEBUG(3,("Unable to get printer status for %s - %s\n", name,
+			 ippErrorString(response->request.status.status_code)));
+		ippDelete(response);
+		return (0);
+	}
+	else
+	{
+		ippDelete(response);
+		return (1);
+	}
+}
+
+
+/*
+ * 'cups_job_delete()' - Delete a job.
+ */
+
+static int
+cups_job_delete(int snum, struct printjob *pjob)
+{
+	int		ret;		/* Return value */
+	http_t		*http;		/* HTTP connection to server */
+	ipp_t		*request,	/* IPP Request */
+			*response;	/* IPP Response */
+	cups_lang_t	*language;	/* Default language */
+	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
+
+
+	DEBUG(5,("cups_job_delete(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
+
+       /*
+        * Make sure we don't ask for passwords...
+	*/
+
+        cupsSetPasswordCB(cups_passwd_cb);
+
+       /*
+	* Try to connect to the server...
+	*/
+
+	if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+	{
+		DEBUG(0,("Unable to connect to CUPS server %s - %s\n", 
+			 cupsServer(), strerror(errno)));
+		return (1);
+	}
+
+       /*
+	* Build an IPP_CANCEL_JOB request, which requires the following
+	* attributes:
+	*
+	*    attributes-charset
+	*    attributes-natural-language
+	*    job-uri
+	*    requesting-user-name
+	*/
+
+	request = ippNew();
+
+	request->request.op.operation_id = IPP_CANCEL_JOB;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+        	     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+        	     "attributes-natural-language", NULL, language->language);
+
+	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
+        	     NULL, pjob->user);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+        ret = 1;
+
+	if ((response = cupsDoRequest(http, request, "/jobs")) != NULL)
+	{
+	  if (response->request.status.status_code >= IPP_OK_CONFLICT)
+		DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
+			 ippErrorString(cupsLastError())));
+          else
+	  	ret = 0;
+
+	  ippDelete(response);
+	}
+	else
+	  DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
+		   ippErrorString(cupsLastError())));
+
+	httpClose(http);
+
+	return (ret);
+}
+
+
+/*
+ * 'cups_job_pause()' - Pause a job.
+ */
+
+static int
+cups_job_pause(int snum, struct printjob *pjob)
+{
+	int		ret;		/* Return value */
+	http_t		*http;		/* HTTP connection to server */
+	ipp_t		*request,	/* IPP Request */
+			*response;	/* IPP Response */
+	cups_lang_t	*language;	/* Default language */
+	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
+
+
+	DEBUG(5,("cups_job_pause(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
+
+       /*
+        * Make sure we don't ask for passwords...
+	*/
+
+        cupsSetPasswordCB(cups_passwd_cb);
+
+       /*
+	* Try to connect to the server...
+	*/
+
+	if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+	{
+		DEBUG(0,("Unable to connect to CUPS server %s - %s\n", 
+			 cupsServer(), strerror(errno)));
+		return (1);
+	}
+
+       /*
+	* Build an IPP_HOLD_JOB request, which requires the following
+	* attributes:
+	*
+	*    attributes-charset
+	*    attributes-natural-language
+	*    job-uri
+	*    requesting-user-name
+	*/
+
+	request = ippNew();
+
+	request->request.op.operation_id = IPP_HOLD_JOB;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+        	     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+        	     "attributes-natural-language", NULL, language->language);
+
+	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
+        	     NULL, pjob->user);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+        ret = 1;
+
+	if ((response = cupsDoRequest(http, request, "/jobs")) != NULL)
+	{
+	  if (response->request.status.status_code >= IPP_OK_CONFLICT)
+		DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
+			 ippErrorString(cupsLastError())));
+          else
+	  	ret = 0;
+
+	  ippDelete(response);
+	}
+	else
+	  DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
+		   ippErrorString(cupsLastError())));
+
+	httpClose(http);
+
+	return (ret);
+}
+
+
+/*
+ * 'cups_job_resume()' - Resume a paused job.
+ */
+
+static int
+cups_job_resume(int snum, struct printjob *pjob)
+{
+	int		ret;		/* Return value */
+	http_t		*http;		/* HTTP connection to server */
+	ipp_t		*request,	/* IPP Request */
+			*response;	/* IPP Response */
+	cups_lang_t	*language;	/* Default language */
+	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
+
+
+	DEBUG(5,("cups_job_resume(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
+
+       /*
+        * Make sure we don't ask for passwords...
+	*/
+
+        cupsSetPasswordCB(cups_passwd_cb);
+
+       /*
+	* Try to connect to the server...
+	*/
+
+	if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+	{
+		DEBUG(0,("Unable to connect to CUPS server %s - %s\n", 
+			 cupsServer(), strerror(errno)));
+		return (1);
+	}
+
+       /*
+	* Build an IPP_RELEASE_JOB request, which requires the following
+	* attributes:
+	*
+	*    attributes-charset
+	*    attributes-natural-language
+	*    job-uri
+	*    requesting-user-name
+	*/
+
+	request = ippNew();
+
+	request->request.op.operation_id = IPP_RELEASE_JOB;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+        	     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+        	     "attributes-natural-language", NULL, language->language);
+
+	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
+        	     NULL, pjob->user);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+        ret = 1;
+
+	if ((response = cupsDoRequest(http, request, "/jobs")) != NULL)
+	{
+	  if (response->request.status.status_code >= IPP_OK_CONFLICT)
+		DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
+			 ippErrorString(cupsLastError())));
+          else
+	  	ret = 0;
+
+	  ippDelete(response);
+	}
+	else
+	  DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
+		   ippErrorString(cupsLastError())));
+
+	httpClose(http);
+
+	return (ret);
+}
+
+
+/*
+ * 'cups_job_submit()' - Submit a job for printing.
+ */
+
+static int
+cups_job_submit(int snum, struct printjob *pjob)
+{
+	int		ret;		/* Return value */
+	http_t		*http;		/* HTTP connection to server */
+	ipp_t		*request,	/* IPP Request */
+			*response;	/* IPP Response */
+	cups_lang_t	*language;	/* Default language */
+	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
+
+
+	DEBUG(5,("cups_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
+
+       /*
+        * Make sure we don't ask for passwords...
+	*/
+
+        cupsSetPasswordCB(cups_passwd_cb);
+
+       /*
+	* Try to connect to the server...
+	*/
+
+	if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+	{
+		DEBUG(0,("Unable to connect to CUPS server %s - %s\n", 
+			 cupsServer(), strerror(errno)));
+		return (1);
+	}
+
+       /*
+	* Build an IPP_PRINT_JOB request, which requires the following
+	* attributes:
+	*
+	*    attributes-charset
+	*    attributes-natural-language
+	*    printer-uri
+	*    requesting-user-name
+	*    [document-data]
+	*/
+
+	request = ippNew();
+
+	request->request.op.operation_id = IPP_PRINT_JOB;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+        	     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+        	     "attributes-natural-language", NULL, language->language);
+
+	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
+	         PRINTERNAME(snum));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
+        	     "printer-uri", NULL, uri);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
+        	     NULL, pjob->user);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
+	             "job-originating-host-name", NULL,
+		     get_remote_machine_name());
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
+        	     pjob->jobname);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+	slprintf(uri, sizeof(uri) - 1, "/printers/%s", PRINTERNAME(snum));
+
+        ret = 1;
+	if ((response = cupsDoFileRequest(http, request, uri,
+	                                  pjob->filename)) != NULL)
+	{
+		if (response->request.status.status_code >= IPP_OK_CONFLICT)
+			DEBUG(0,("Unable to print file to %s - %s\n", PRINTERNAME(snum),
+			         ippErrorString(cupsLastError())));
+        	else
+			ret = 0;
+
+		ippDelete(response);
+	}
+	else
+		DEBUG(0,("Unable to print file to `%s' - %s\n", PRINTERNAME(snum),
+			 ippErrorString(cupsLastError())));
+
+	httpClose(http);
+
+	if ( ret == 0 )
+		unlink(pjob->filename);
+	/* else print_job_end will do it for us */
+
+	return (ret);
+}
+
+
+/*
+ * 'cups_queue_get()' - Get all the jobs in the print queue.
+ */
+
+static int
+cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
+{
+	http_t		*http;		/* HTTP connection to server */
+	ipp_t		*request,	/* IPP Request */
+			*response;	/* IPP Response */
+	ipp_attribute_t	*attr;		/* Current attribute */
+	cups_lang_t	*language;	/* Default language */
+	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
+	int		qcount,		/* Number of active queue entries */
+			qalloc;		/* Number of queue entries allocated */
+	print_queue_struct *queue,	/* Queue entries */
+			*temp;		/* Temporary pointer for queue */
+	const char	*user_name,	/* job-originating-user-name attribute */
+			*job_name;	/* job-name attribute */
+	int		job_id;		/* job-id attribute */
+	int		job_k_octets;	/* job-k-octets attribute */
+	time_t		job_time;	/* time-at-creation attribute */
+	ipp_jstate_t	job_status;	/* job-status attribute */
+	int		job_priority;	/* job-priority attribute */
+	static const char *jattrs[] =	/* Requested job attributes */
+			{
+			  "job-id",
+			  "job-k-octets",
+			  "job-name",
+			  "job-originating-user-name",
+			  "job-priority",
+			  "job-state",
+			  "time-at-creation",
+			};
+	static const char *pattrs[] =	/* Requested printer attributes */
+			{
+			  "printer-state",
+			  "printer-state-message"
+			};
+
+
+	DEBUG(5,("cups_queue_get(%d, %p, %p)\n", snum, q, status));
+
+       /*
+        * Make sure we don't ask for passwords...
+	*/
+
+        cupsSetPasswordCB(cups_passwd_cb);
+
+       /*
+	* Try to connect to the server...
+	*/
+
+	if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+	{
+		DEBUG(0,("Unable to connect to CUPS server %s - %s\n", 
+			 cupsServer(), strerror(errno)));
+		return (0);
+	}
+
+       /*
+        * Generate the printer URI...
+	*/
+
+	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
+	         PRINTERNAME(snum));
+
+       /*
+	* Build an IPP_GET_JOBS request, which requires the following
+	* attributes:
+	*
+	*    attributes-charset
+	*    attributes-natural-language
+	*    requested-attributes
+	*    printer-uri
+	*/
+
+	request = ippNew();
+
+	request->request.op.operation_id = IPP_GET_JOBS;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+                     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+                     "attributes-natural-language", NULL, language->language);
+
+        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
+	              "requested-attributes",
+		      (sizeof(jattrs) / sizeof(jattrs[0])),
+		      NULL, jattrs);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
+                     "printer-uri", NULL, uri);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+	if ((response = cupsDoRequest(http, request, "/")) == NULL)
+	{
+		DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
+			 ippErrorString(cupsLastError())));
+		httpClose(http);
+		return (0);
+	}
+
+	if (response->request.status.status_code >= IPP_OK_CONFLICT)
+	{
+		DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
+			 ippErrorString(response->request.status.status_code)));
+		ippDelete(response);
+		httpClose(http);
+
+		return (0);
+	}
+
+       /*
+        * Process the jobs...
+	*/
+
+        qcount = 0;
+	qalloc = 0;
+	queue  = NULL;
+
+        for (attr = response->attrs; attr != NULL; attr = attr->next)
+	{
+	       /*
+		* Skip leading attributes until we hit a job...
+		*/
+
+		while (attr != NULL && attr->group_tag != IPP_TAG_JOB)
+        		attr = attr->next;
+
+		if (attr == NULL)
+			break;
+
+	       /*
+	        * Allocate memory as needed...
+		*/
+		if (qcount >= qalloc)
+		{
+			qalloc += 16;
+
+			temp = Realloc(queue, sizeof(print_queue_struct) * qalloc);
+
+			if (temp == NULL)
+			{
+				DEBUG(0,("cups_queue_get: Not enough memory!"));
+				ippDelete(response);
+				httpClose(http);
+
+				SAFE_FREE(queue);
+				return (0);
+			}
+
+			queue = temp;
+		}
+
+		temp = queue + qcount;
+		memset(temp, 0, sizeof(print_queue_struct));
+
+	       /*
+		* Pull the needed attributes from this job...
+		*/
+
+		job_id       = 0;
+		job_priority = 50;
+		job_status   = IPP_JOB_PENDING;
+		job_time     = 0;
+		job_k_octets = 0;
+		user_name    = NULL;
+		job_name     = NULL;
+
+		while (attr != NULL && attr->group_tag == IPP_TAG_JOB)
+		{
+        		if (attr->name == NULL)
+			{
+				attr = attr->next;
+				break;
+			}
+
+        		if (strcmp(attr->name, "job-id") == 0 &&
+			    attr->value_tag == IPP_TAG_INTEGER)
+				job_id = attr->values[0].integer;
+
+        		if (strcmp(attr->name, "job-k-octets") == 0 &&
+			    attr->value_tag == IPP_TAG_INTEGER)
+				job_k_octets = attr->values[0].integer;
+
+        		if (strcmp(attr->name, "job-priority") == 0 &&
+			    attr->value_tag == IPP_TAG_INTEGER)
+				job_priority = attr->values[0].integer;
+
+        		if (strcmp(attr->name, "job-state") == 0 &&
+			    attr->value_tag == IPP_TAG_ENUM)
+				job_status = (ipp_jstate_t)(attr->values[0].integer);
+
+        		if (strcmp(attr->name, "time-at-creation") == 0 &&
+			    attr->value_tag == IPP_TAG_INTEGER)
+				job_time = attr->values[0].integer;
+
+        		if (strcmp(attr->name, "job-name") == 0 &&
+			    attr->value_tag == IPP_TAG_NAME)
+				job_name = attr->values[0].string.text;
+
+        		if (strcmp(attr->name, "job-originating-user-name") == 0 &&
+			    attr->value_tag == IPP_TAG_NAME)
+				user_name = attr->values[0].string.text;
+
+        		attr = attr->next;
+		}
+
+	       /*
+		* See if we have everything needed...
+		*/
+
+		if (user_name == NULL || job_name == NULL || job_id == 0)
+		{
+        	  if (attr == NULL)
+		    break;
+		  else
+        	    continue;
+		}
+
+		temp->job      = job_id;
+		temp->size     = job_k_octets * 1024;
+		temp->status   = job_status == IPP_JOB_PENDING ? LPQ_QUEUED :
+				 job_status == IPP_JOB_STOPPED ? LPQ_PAUSED :
+                                 job_status == IPP_JOB_HELD ? LPQ_PAUSED :
+			         LPQ_PRINTING;
+		temp->priority = job_priority;
+		temp->time     = job_time;
+		strncpy(temp->fs_user, user_name, sizeof(temp->fs_user) - 1);
+		strncpy(temp->fs_file, job_name, sizeof(temp->fs_file) - 1);
+
+		qcount ++;
+
+		if (attr == NULL)
+        	  break;
+	}
+
+	ippDelete(response);
+
+       /*
+	* Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the
+	* following attributes:
+	*
+	*    attributes-charset
+	*    attributes-natural-language
+	*    requested-attributes
+	*    printer-uri
+	*/
+
+	request = ippNew();
+
+	request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+                     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+                     "attributes-natural-language", NULL, language->language);
+
+        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
+	              "requested-attributes",
+		      (sizeof(pattrs) / sizeof(pattrs[0])),
+		      NULL, pattrs);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
+                     "printer-uri", NULL, uri);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+	if ((response = cupsDoRequest(http, request, "/")) == NULL)
+	{
+		DEBUG(0,("Unable to get printer status for %s - %s\n", PRINTERNAME(snum),
+			 ippErrorString(cupsLastError())));
+		httpClose(http);
+		*q = queue;
+		return (qcount);
+	}
+
+	if (response->request.status.status_code >= IPP_OK_CONFLICT)
+	{
+		DEBUG(0,("Unable to get printer status for %s - %s\n", PRINTERNAME(snum),
+			 ippErrorString(response->request.status.status_code)));
+		ippDelete(response);
+		httpClose(http);
+		*q = queue;
+		return (qcount);
+	}
+
+       /*
+        * Get the current printer status and convert it to the SAMBA values.
+	*/
+
+        if ((attr = ippFindAttribute(response, "printer-state", IPP_TAG_ENUM)) != NULL)
+	{
+		if (attr->values[0].integer == IPP_PRINTER_STOPPED)
+			status->status = LPSTAT_STOPPED;
+		else
+			status->status = LPSTAT_OK;
+	}
+
+        if ((attr = ippFindAttribute(response, "printer-state-message",
+	                             IPP_TAG_TEXT)) != NULL)
+	        fstrcpy(status->message, attr->values[0].string.text);
+
+        ippDelete(response);
+
+       /*
+        * Return the job queue...
+	*/
+
+	httpClose(http);
+
+	*q = queue;
+	return (qcount);
+}
+
+
+/*
+ * 'cups_queue_pause()' - Pause a print queue.
+ */
+
+static int
+cups_queue_pause(int snum)
+{
+	extern userdom_struct current_user_info;
+	int		ret;		/* Return value */
+	http_t		*http;		/* HTTP connection to server */
+	ipp_t		*request,	/* IPP Request */
+			*response;	/* IPP Response */
+	cups_lang_t	*language;	/* Default language */
+	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
+
+
+	DEBUG(5,("cups_queue_pause(%d)\n", snum));
+
+	/*
+	 * Make sure we don't ask for passwords...
+	 */
+
+        cupsSetPasswordCB(cups_passwd_cb);
+
+	/*
+	 * Try to connect to the server...
+	 */
+
+	if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+	{
+		DEBUG(0,("Unable to connect to CUPS server %s - %s\n", 
+			 cupsServer(), strerror(errno)));
+		return (1);
+	}
+
+	/*
+	 * Build an IPP_PAUSE_PRINTER request, which requires the following
+	 * attributes:
+	 *
+	 *    attributes-charset
+	 *    attributes-natural-language
+	 *    printer-uri
+	 *    requesting-user-name
+	 */
+
+	request = ippNew();
+
+	request->request.op.operation_id = IPP_PAUSE_PRINTER;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+        	     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+        	     "attributes-natural-language", NULL, language->language);
+
+	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
+	         PRINTERNAME(snum));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
+        	     NULL, current_user_info.unix_name);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+        ret = 1;
+
+	if ((response = cupsDoRequest(http, request, "/admin/")) != NULL)
+	{
+	  if (response->request.status.status_code >= IPP_OK_CONFLICT)
+		DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
+			 ippErrorString(cupsLastError())));
+          else
+	  	ret = 0;
+
+	  ippDelete(response);
+	}
+	else
+	  DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
+		   ippErrorString(cupsLastError())));
+
+	httpClose(http);
+
+	return (ret);
+}
+
+
+/*
+ * 'cups_queue_resume()' - Restart a print queue.
+ */
+
+static int
+cups_queue_resume(int snum)
+{
+	extern userdom_struct current_user_info;
+	int		ret;		/* Return value */
+	http_t		*http;		/* HTTP connection to server */
+	ipp_t		*request,	/* IPP Request */
+			*response;	/* IPP Response */
+	cups_lang_t	*language;	/* Default language */
+	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
+
+
+	DEBUG(5,("cups_queue_resume(%d)\n", snum));
+
+       /*
+        * Make sure we don't ask for passwords...
+	*/
+
+        cupsSetPasswordCB(cups_passwd_cb);
+
+       /*
+	* Try to connect to the server...
+	*/
+
+	if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+	{
+		DEBUG(0,("Unable to connect to CUPS server %s - %s\n", 
+			 cupsServer(), strerror(errno)));
+		return (1);
+	}
+
+       /*
+	* Build an IPP_RESUME_PRINTER request, which requires the following
+	* attributes:
+	*
+	*    attributes-charset
+	*    attributes-natural-language
+	*    printer-uri
+	*    requesting-user-name
+	*/
+
+	request = ippNew();
+
+	request->request.op.operation_id = IPP_RESUME_PRINTER;
+	request->request.op.request_id   = 1;
+
+	language = cupsLangDefault();
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+        	     "attributes-charset", NULL, cupsLangEncoding(language));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+        	     "attributes-natural-language", NULL, language->language);
+
+	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
+	         PRINTERNAME(snum));
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
+
+	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
+        	     NULL, current_user_info.unix_name);
+
+       /*
+	* Do the request and get back a response...
+	*/
+
+        ret = 1;
+
+	if ((response = cupsDoRequest(http, request, "/admin/")) != NULL)
+	{
+	  if (response->request.status.status_code >= IPP_OK_CONFLICT)
+		DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
+			 ippErrorString(cupsLastError())));
+          else
+	  	ret = 0;
+
+	  ippDelete(response);
+	}
+	else
+	  DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
+		   ippErrorString(cupsLastError())));
+
+	httpClose(http);
+
+	return (ret);
+}
+
+
+#else
+ /* this keeps fussy compilers happy */
+ void print_cups_dummy(void) {}
+#endif /* HAVE_CUPS */