s3-printing: rename queue->job sysjob
[ddiss/samba.git] / source3 / printing / print_cups.c
index df621537984a54fbdd1dd8b6c8907ec5a8c242ff..88f143c0c7381788513046b4db775286ff2e17cf 100644 (file)
@@ -2,54 +2,47 @@
  * Support code for the Common UNIX Printing System ("CUPS")
  *
  * Copyright 1999-2003 by Michael R Sweet.
+ * Copyright 2008 Jeremy Allison.
  *
  * 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
+ * the Free Software Foundation; either version 3 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.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * JRA. Converted to utf8 pull/push.
  */
 
 #include "includes.h"
 #include "printing.h"
+#include "printing/pcap.h"
+#include "librpc/gen_ndr/ndr_printcap.h"
 
 #ifdef HAVE_CUPS
 #include <cups/cups.h>
 #include <cups/language.h>
 
+static SIG_ATOMIC_T gotalarm;
 
-/*
* CUPS printing interface definitions...
- */
+/***************************************************************
Signal function to tell us we timed out.
+****************************************************************/
 
-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);
+static void gotalarm_sig(int signum)
+{
+        gotalarm = 1;
+}
 
-
-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,
-               };
+extern userdom_struct current_user_info;
 
 /*
  * 'cups_passwd_cb()' - The CUPS password callback...
@@ -58,98 +51,123 @@ struct printif     cups_printif =
 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...
-  */
      /*
+        * Always return NULL to indicate that no password is available...
+        */
 
-  return (NULL);
+       return (NULL);
 }
 
+static http_t *cups_connect(TALLOC_CTX *frame)
+{
+       http_t *http = NULL;
+       char *server = NULL, *p = NULL;
+       int port;
+       int timeout = lp_cups_connection_timeout();
+       size_t size;
+
+       if (lp_cups_server() != NULL && strlen(lp_cups_server()) > 0) {
+               if (!push_utf8_talloc(frame, &server, lp_cups_server(), &size)) {
+                       return NULL;
+               }
+       } else {
+               server = talloc_strdup(frame,cupsServer());
+       }
+       if (!server) {
+               return NULL;
+       }
 
-/*
- * 'cups_printer_fn()' - Call a function for every printer known to the
- *                       system.
- */
+       p = strchr(server, ':');
+       if (p) {
+               port = atoi(p+1);
+               *p = '\0';
+       } else {
+               port = ippPort();
+       }
 
-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(10, ("connecting to cups server %s:%d\n",
+                  server, port));
 
+       gotalarm = 0;
 
-       DEBUG(5,("cups_printer_fn(%p)\n", fn));
+       if (timeout) {
+                CatchSignal(SIGALRM, gotalarm_sig);
+                alarm(timeout);
+        }
 
-       /*
-        * Make sure we don't ask for passwords...
-       */
+#ifdef HAVE_HTTPCONNECTENCRYPT
+       http = httpConnectEncrypt(server, port, lp_cups_encrypt());
+#else
+       http = httpConnect(server, port);
+#endif
 
-        cupsSetPasswordCB(cups_passwd_cb);
 
-       /*
-       * Try to connect to the server...
-       */
+       CatchSignal(SIGALRM, SIG_IGN);
+        alarm(0);
 
-       if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
-       {
-               DEBUG(0,("Unable to connect to CUPS server %s - %s\n", 
-                        cupsServer(), strerror(errno)));
-               return;
+       if (http == NULL) {
+               DEBUG(0,("Unable to connect to CUPS server %s:%d - %s\n",
+                        server, port, strerror(errno)));
        }
 
-       /*
-       * Build a CUPS_GET_PRINTERS request, which requires the following
-       * attributes:
-       *
-       *    attributes-charset
-       *    attributes-natural-language
-       *    requested-attributes
-       */
-
-       request = ippNew();
+       return http;
+}
 
-       request->request.op.operation_id = CUPS_GET_PRINTERS;
-       request->request.op.request_id   = 1;
+static bool send_pcap_blob(DATA_BLOB *pcap_blob, int fd)
+{
+       size_t ret;
 
-       language = cupsLangDefault();
+       ret = sys_write(fd, &pcap_blob->length, sizeof(pcap_blob->length));
+       if (ret != sizeof(pcap_blob->length)) {
+               return false;
+       }
 
-       ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
-                     "attributes-charset", NULL, cupsLangEncoding(language));
+       ret = sys_write(fd, pcap_blob->data, pcap_blob->length);
+       if (ret != pcap_blob->length) {
+               return false;
+       }
 
-       ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
-                     "attributes-natural-language", NULL, language->language);
+       DEBUG(10, ("successfully sent blob of len %d\n", (int)ret));
+       return true;
+}
 
-        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
-                     "requested-attributes",
-                     (sizeof(requested) / sizeof(requested[0])),
-                     NULL, requested);
+static bool recv_pcap_blob(TALLOC_CTX *mem_ctx, int fd, DATA_BLOB *pcap_blob)
+{
+       size_t blob_len;
+       size_t ret;
 
-       /*
-       * Do the request and get back a response...
-       */
+       ret = sys_read(fd, &blob_len, sizeof(blob_len));
+       if (ret != sizeof(blob_len)) {
+               return false;
+       }
 
-       if ((response = cupsDoRequest(http, request, "/")) == NULL)
-       {
-               DEBUG(0,("Unable to get printer list - %s\n",
-                        ippErrorString(cupsLastError())));
-               httpClose(http);
-               return;
+       *pcap_blob = data_blob_talloc_named(mem_ctx, NULL, blob_len,
+                                          "cups pcap");
+       if (pcap_blob->length != blob_len) {
+               return false;
+       }
+       ret = sys_read(fd, pcap_blob->data, blob_len);
+       if (ret != blob_len) {
+               talloc_free(pcap_blob->data);
+               return false;
        }
 
-       for (attr = response->attrs; attr != NULL;)
-       {
+       DEBUG(10, ("successfully recvd blob of len %d\n", (int)ret));
+       return true;
+}
+
+static bool process_cups_printers_response(TALLOC_CTX *mem_ctx,
+                                          ipp_t *response,
+                                          struct pcap_data *pcap_data)
+{
+       ipp_attribute_t *attr;
+       char *name;
+       char *info;
+       char *location = NULL;
+       struct pcap_printer *printer;
+       bool ret_ok = false;
+
+       for (attr = response->attrs; attr != NULL;) {
               /*
                * Skip leading attributes until we hit a printer...
                */
@@ -158,31 +176,48 @@ void cups_printer_fn(void (*fn)(char *, char *))
                        attr = attr->next;
 
                if (attr == NULL)
-                       break;
+                       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;
+               while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) {
+                       size_t size;
+                       if (strcmp(attr->name, "printer-name") == 0 &&
+                           attr->value_tag == IPP_TAG_NAME) {
+                               if (!pull_utf8_talloc(mem_ctx,
+                                               &name,
+                                               attr->values[0].string.text,
+                                               &size)) {
+                                       goto err_out;
+                               }
+                       }
 
-                       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) {
+                               if (!pull_utf8_talloc(mem_ctx,
+                                               &info,
+                                               attr->values[0].string.text,
+                                               &size)) {
+                                       goto err_out;
+                               }
+                       }
 
-                       if (strcmp(attr->name, "printer-info") == 0 &&
-                           attr->value_tag == IPP_TAG_TEXT)
-                               info = attr->values[0].string.text;
+                       if (strcmp(attr->name, "printer-location") == 0 &&
+                           attr->value_tag == IPP_TAG_TEXT) {
+                               if (!pull_utf8_talloc(mem_ctx,
+                                               &location,
+                                               attr->values[0].string.text,
+                                               &size)) {
+                                       goto err_out;
+                               }
+                       }
 
-                       attr = attr->next;
+                       attr = attr->next;
                }
 
               /*
@@ -192,19 +227,67 @@ void cups_printer_fn(void (*fn)(char *, char *))
                if (name == NULL)
                        break;
 
-               if (info == NULL || !info[0])
-                       (*fn)(name, make_model);
-               else
-                       (*fn)(name, info);
-               
-
+               if (pcap_data->count == 0) {
+                       printer = talloc_array(mem_ctx, struct pcap_printer, 1);
+               } else {
+                       printer = talloc_realloc(mem_ctx, pcap_data->printers,
+                                                struct pcap_printer,
+                                                pcap_data->count + 1);
+               }
+               if (printer == NULL) {
+                       goto err_out;
+               }
+               pcap_data->printers = printer;
+               pcap_data->printers[pcap_data->count].name = name;
+               pcap_data->printers[pcap_data->count].info = info;
+               pcap_data->printers[pcap_data->count].location = location;
+               pcap_data->count++;
        }
 
-       ippDelete(response);
+       ret_ok = true;
+err_out:
+       return ret_ok;
+}
 
+/*
+ * request printer list from cups, send result back to up parent via fd.
+ * returns true if the (possibly failed) result was successfuly sent to parent.
+ */
+static bool cups_cache_reload_async(int fd)
+{
+       TALLOC_CTX *frame = talloc_stackframe();
+       struct pcap_data pcap_data;
+       http_t          *http = NULL;           /* HTTP connection to server */
+       ipp_t           *request = NULL,        /* IPP Request */
+                       *response = NULL;       /* IPP Response */
+       cups_lang_t     *language = NULL;       /* Default language */
+       static const char *requested[] =/* Requested attributes */
+                       {
+                         "printer-name",
+                         "printer-info",
+                         "printer-location"
+                       };
+       bool ret = False;
+       enum ndr_err_code ndr_ret;
+       DATA_BLOB pcap_blob;
+
+       ZERO_STRUCT(pcap_data);
+       pcap_data.status = NT_STATUS_UNSUCCESSFUL;
+
+       DEBUG(5, ("reloading cups printcap cache\n"));
 
        /*
-       * Build a CUPS_GET_CLASSES request, which requires the following
+        * Make sure we don't ask for passwords...
+       */
+
+        cupsSetPasswordCB(cups_passwd_cb);
+
+       if ((http = cups_connect(frame)) == NULL) {
+               goto out;
+       }
+
+       /*
+       * Build a CUPS_GET_PRINTERS request, which requires the following
        * attributes:
        *
        *    attributes-charset
@@ -214,13 +297,13 @@ void cups_printer_fn(void (*fn)(char *, char *))
 
        request = ippNew();
 
-       request->request.op.operation_id = CUPS_GET_CLASSES;
+       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));
+                     "attributes-charset", NULL, "utf-8");
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                      "attributes-natural-language", NULL, language->language);
@@ -230,190 +313,269 @@ void cups_printer_fn(void (*fn)(char *, char *))
                      (sizeof(requested) / sizeof(requested[0])),
                      NULL, requested);
 
-       /*
-       * Do the request and get back a response...
-       */
-
-       if ((response = cupsDoRequest(http, request, "/")) == NULL)
-       {
+       if ((response = cupsDoRequest(http, request, "/")) == NULL) {
                DEBUG(0,("Unable to get printer list - %s\n",
                         ippErrorString(cupsLastError())));
-               httpClose(http);
-               return;
+               goto out;
        }
 
-       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;
+       ret = process_cups_printers_response(frame, response, &pcap_data);
+       if (!ret) {
+               DEBUG(0,("failed to process cups response\n"));
+               goto out;
+       }
 
-               if (attr == NULL)
-                       break;
+       ippDelete(response);
+       response = NULL;
 
-              /*
-               * Pull the needed attributes from this printer...
-               */
+       /*
+       * Build a CUPS_GET_CLASSES request, which requires the following
+       * attributes:
+       *
+       *    attributes-charset
+       *    attributes-natural-language
+       *    requested-attributes
+       */
 
-               name       = NULL;
-               make_model = NULL;
-               info       = NULL;
+       request = ippNew();
 
-               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;
+       request->request.op.operation_id = CUPS_GET_CLASSES;
+       request->request.op.request_id   = 1;
 
-                       if (strcmp(attr->name, "printer-make-and-model") == 0 &&
-                           attr->value_tag == IPP_TAG_TEXT)
-                               make_model = attr->values[0].string.text;
+       ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+                     "attributes-charset", NULL, "utf-8");
 
-                       if (strcmp(attr->name, "printer-info") == 0 &&
-                           attr->value_tag == IPP_TAG_TEXT)
-                               info = attr->values[0].string.text;
+       ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+                     "attributes-natural-language", NULL, language->language);
 
-                       attr = attr->next;
-               }
+        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
+                     "requested-attributes",
+                     (sizeof(requested) / sizeof(requested[0])),
+                     NULL, requested);
 
-              /*
-               * See if we have everything needed...
-               */
+       if ((response = cupsDoRequest(http, request, "/")) == NULL) {
+               DEBUG(0,("Unable to get printer list - %s\n",
+                        ippErrorString(cupsLastError())));
+               goto out;
+       }
 
-               if (name == NULL)
-                       break;
+       ret = process_cups_printers_response(frame, response, &pcap_data);
+       if (!ret) {
+               DEBUG(0,("failed to process cups response\n"));
+               goto out;
+       }
 
-               if (info == NULL || !info[0])
-                       (*fn)(name, make_model);
-               else
-                       (*fn)(name, info);
-               
+       pcap_data.status = NT_STATUS_OK;
+ out:
+       if (response)
+               ippDelete(response);
 
-       }
+       if (language)
+               cupsLangFree(language);
 
-       ippDelete(response);
+       if (http)
+               httpClose(http);
 
-       /*
-        * Close the connection to the server...
-       */
+       ret = false;
+       ndr_ret = ndr_push_struct_blob(&pcap_blob, frame, &pcap_data,
+                                      (ndr_push_flags_fn_t)ndr_push_pcap_data);
+       if (ndr_ret == NDR_ERR_SUCCESS) {
+               ret = send_pcap_blob(&pcap_blob, fd);
+       }
 
-       httpClose(http);
+       TALLOC_FREE(frame);
+       return ret;
 }
 
+static struct fd_event *cache_fd_event;
 
-/*
- * '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)
+static bool cups_pcap_load_async(struct tevent_context *ev,
+                                struct messaging_context *msg_ctx,
+                                int *pfd)
 {
-       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 */
+       int fds[2];
+       pid_t pid;
+       NTSTATUS status;
 
+       *pfd = -1;
 
-       DEBUG(5,("cups_printername_ok(\"%s\")\n", name));
+       if (cache_fd_event) {
+               DEBUG(3,("cups_pcap_load_async: already waiting for "
+                       "a refresh event\n" ));
+               return false;
+       }
 
-       /*
-        * Make sure we don't ask for passwords...
-       */
+       DEBUG(5,("cups_pcap_load_async: asynchronously loading cups printers\n"));
 
-        cupsSetPasswordCB(cups_passwd_cb);
+       if (pipe(fds) == -1) {
+               return false;
+       }
 
-       /*
-       * Try to connect to the server...
-       */
+       pid = fork();
+       if (pid == (pid_t)-1) {
+               DEBUG(10,("cups_pcap_load_async: fork failed %s\n",
+                       strerror(errno) ));
+               close(fds[0]);
+               close(fds[1]);
+               return false;
+       }
 
-       if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
-       {
-               DEBUG(3,("Unable to connect to CUPS server %s - %s\n", 
-                        cupsServer(), strerror(errno)));
-               return (0);
+       if (pid) {
+               DEBUG(10,("cups_pcap_load_async: child pid = %u\n",
+                       (unsigned int)pid ));
+               /* Parent. */
+               close(fds[1]);
+               *pfd = fds[0];
+               return true;
        }
 
-       /*
-       * Build an IPP_GET_PRINTER_ATTRS request, which requires the following
-       * attributes:
-       *
-       *    attributes-charset
-       *    attributes-natural-language
-       *    requested-attributes
-       *    printer-uri
-       */
+       /* Child. */
 
-       request = ippNew();
+       close_all_print_db();
 
-       request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
-       request->request.op.request_id   = 1;
+       status = reinit_after_fork(msg_ctx, ev, true);
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(0,("cups_pcap_load_async: reinit_after_fork() failed\n"));
+               smb_panic("cups_pcap_load_async: reinit_after_fork() failed");
+       }
 
-       language = cupsLangDefault();
+       close(fds[0]);
+       cups_cache_reload_async(fds[1]);
+       close(fds[1]);
+       _exit(0);
+}
 
-       ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
-                     "attributes-charset", NULL, cupsLangEncoding(language));
+struct cups_async_cb_args {
+       int pipe_fd;
+       struct event_context *event_ctx;
+       struct messaging_context *msg_ctx;
+       void (*post_cache_fill_fn)(struct event_context *,
+                                  struct messaging_context *);
+};
+
+static void cups_async_callback(struct event_context *event_ctx,
+                               struct fd_event *event,
+                               uint16 flags,
+                               void *p)
+{
+       TALLOC_CTX *frame = talloc_stackframe();
+       struct cups_async_cb_args *cb_args = (struct cups_async_cb_args *)p;
+       struct pcap_cache *tmp_pcap_cache = NULL;
+       bool ret_ok;
+       struct pcap_data pcap_data;
+       DATA_BLOB pcap_blob;
+       enum ndr_err_code ndr_ret;
+       int i;
+
+       DEBUG(5,("cups_async_callback: callback received for printer data. "
+               "fd = %d\n", cb_args->pipe_fd));
+
+       ret_ok = recv_pcap_blob(frame, cb_args->pipe_fd, &pcap_blob);
+       if (!ret_ok) {
+               DEBUG(0,("failed to recv pcap blob\n"));
+               goto err_out;
+       }
 
-       ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
-                     "attributes-natural-language", NULL, language->language);
+       ndr_ret = ndr_pull_struct_blob(&pcap_blob, frame, &pcap_data,
+                                      (ndr_pull_flags_fn_t)ndr_pull_pcap_data);
+       if (ndr_ret != NDR_ERR_SUCCESS) {
+               goto err_out;
+       }
 
-       ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
-                     "requested-attributes", NULL, "printer-uri");
+       if (!NT_STATUS_IS_OK(pcap_data.status)) {
+               DEBUG(0,("failed to retrieve printer list: %s\n",
+                        nt_errstr(pcap_data.status)));
+               goto err_out;
+       }
 
-       slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s", name);
+       for (i = 0; i < pcap_data.count; i++) {
+               ret_ok = pcap_cache_add_specific(&tmp_pcap_cache,
+                                                pcap_data.printers[i].name,
+                                                pcap_data.printers[i].info,
+                                                pcap_data.printers[i].location);
+               if (!ret_ok) {
+                       DEBUG(0, ("failed to add to tmp pcap cache\n"));
+                       goto err_out;
+               }
+       }
 
-       ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
-                     "printer-uri", NULL, uri);
+       /* replace the system-wide pcap cache with a (possibly empty) new one */
+       ret_ok = pcap_cache_replace(tmp_pcap_cache);
+       if (!ret_ok) {
+               DEBUG(0, ("failed to replace pcap cache\n"));
+       } else if (cb_args->post_cache_fill_fn != NULL) {
+               /* Caller requested post cache fill callback */
+               cb_args->post_cache_fill_fn(cb_args->event_ctx,
+                                           cb_args->msg_ctx);
+       }
+err_out:
+       pcap_cache_destroy_specific(&tmp_pcap_cache);
+       TALLOC_FREE(frame);
+       close(cb_args->pipe_fd);
+       TALLOC_FREE(cb_args);
+       TALLOC_FREE(cache_fd_event);
+}
 
-       /*
-       * Do the request and get back a response...
-       */
+bool cups_cache_reload(struct tevent_context *ev,
+                      struct messaging_context *msg_ctx,
+                      void (*post_cache_fill_fn)(struct tevent_context *,
+                                                 struct messaging_context *))
+{
+       struct cups_async_cb_args *cb_args;
+       int *p_pipe_fd;
 
-       if ((response = cupsDoRequest(http, request, "/")) == NULL)
-       {
-               DEBUG(3,("Unable to get printer status for %s - %s\n", name,
-                        ippErrorString(cupsLastError())));
-               httpClose(http);
-               return (0);
+       cb_args = talloc(NULL, struct cups_async_cb_args);
+       if (cb_args == NULL) {
+               return false;
        }
 
-       httpClose(http);
+       cb_args->post_cache_fill_fn = post_cache_fill_fn;
+       cb_args->event_ctx = ev;
+       cb_args->msg_ctx = msg_ctx;
+       p_pipe_fd = &cb_args->pipe_fd;
+       *p_pipe_fd = -1;
 
-       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);
+       /* Set up an async refresh. */
+       if (!cups_pcap_load_async(ev, msg_ctx, p_pipe_fd)) {
+               talloc_free(cb_args);
+               return false;
        }
-       else
-       {
-               ippDelete(response);
-               return (1);
+
+       DEBUG(10,("cups_cache_reload: async read on fd %d\n",
+               *p_pipe_fd ));
+
+       /* Trigger an event when the pipe can be read. */
+       cache_fd_event = event_add_fd(ev,
+                               NULL, *p_pipe_fd,
+                               EVENT_FD_READ,
+                               cups_async_callback,
+                               (void *)cb_args);
+       if (!cache_fd_event) {
+               close(*p_pipe_fd);
+               TALLOC_FREE(cb_args);
+               return false;
        }
-}
 
+       return true;
+}
 
 /*
  * 'cups_job_delete()' - Delete a job.
  */
 
-static int
-cups_job_delete(int snum, struct printjob *pjob)
+static int cups_job_delete(const char *sharename, const char *lprm_command, 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 */
+       TALLOC_CTX *frame = talloc_stackframe();
+       int             ret = 1;                /* Return value */
+       http_t          *http = NULL;           /* HTTP connection to server */
+       ipp_t           *request = NULL,        /* IPP Request */
+                       *response = NULL;       /* IPP Response */
+       cups_lang_t     *language = NULL;       /* Default language */
+       char *user = NULL;
        char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
+       size_t size;
 
-
-       DEBUG(5,("cups_job_delete(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
+       DEBUG(5,("cups_job_delete(%s, %p (%d))\n", sharename, pjob, pjob->sysjob));
 
        /*
         * Make sure we don't ask for passwords...
@@ -425,11 +587,8 @@ cups_job_delete(int snum, struct printjob *pjob)
        * 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);
+       if ((http = cups_connect(frame)) == NULL) {
+               goto out;
        }
 
        /*
@@ -450,7 +609,7 @@ cups_job_delete(int snum, struct printjob *pjob)
        language = cupsLangDefault();
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
-                    "attributes-charset", NULL, cupsLangEncoding(language));
+                     "attributes-charset", NULL, "utf-8");
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                     "attributes-natural-language", NULL, language->language);
@@ -459,32 +618,41 @@ cups_job_delete(int snum, struct printjob *pjob)
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 
+       if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
+               goto out;
+       }
+
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
-                    NULL, pjob->user);
+                    NULL, 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)
+       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;
+               }
+       } else {
                DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
-                        ippErrorString(cupsLastError())));
-          else
-               ret = 0;
-
-         ippDelete(response);
+                       ippErrorString(cupsLastError())));
        }
-       else
-         DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
-                  ippErrorString(cupsLastError())));
 
-       httpClose(http);
+ out:
+       if (response)
+               ippDelete(response);
+
+       if (language)
+               cupsLangFree(language);
+
+       if (http)
+               httpClose(http);
 
-       return (ret);
+       TALLOC_FREE(frame);
+       return ret;
 }
 
 
@@ -492,16 +660,17 @@ cups_job_delete(int snum, struct printjob *pjob)
  * 'cups_job_pause()' - Pause a job.
  */
 
-static int
-cups_job_pause(int snum, struct printjob *pjob)
+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 */
+       TALLOC_CTX *frame = talloc_stackframe();
+       int             ret = 1;                /* Return value */
+       http_t          *http = NULL;           /* HTTP connection to server */
+       ipp_t           *request = NULL,        /* IPP Request */
+                       *response = NULL;       /* IPP Response */
+       cups_lang_t     *language = NULL;       /* Default language */
+       char *user = NULL;
        char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
-
+       size_t size;
 
        DEBUG(5,("cups_job_pause(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 
@@ -515,11 +684,8 @@ cups_job_pause(int snum, struct printjob *pjob)
        * 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);
+       if ((http = cups_connect(frame)) == NULL) {
+               goto out;
        }
 
        /*
@@ -540,7 +706,7 @@ cups_job_pause(int snum, struct printjob *pjob)
        language = cupsLangDefault();
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
-                    "attributes-charset", NULL, cupsLangEncoding(language));
+                     "attributes-charset", NULL, "utf-8");
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                     "attributes-natural-language", NULL, language->language);
@@ -549,32 +715,40 @@ cups_job_pause(int snum, struct printjob *pjob)
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 
+       if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
+               goto out;
+       }
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
-                    NULL, pjob->user);
+                    NULL, 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)
+       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;
+               }
+       } else {
                DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
-                        ippErrorString(cupsLastError())));
-          else
-               ret = 0;
-
-         ippDelete(response);
+                       ippErrorString(cupsLastError())));
        }
-       else
-         DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
-                  ippErrorString(cupsLastError())));
 
-       httpClose(http);
+ out:
+       if (response)
+               ippDelete(response);
+
+       if (language)
+               cupsLangFree(language);
 
-       return (ret);
+       if (http)
+               httpClose(http);
+
+       TALLOC_FREE(frame);
+       return ret;
 }
 
 
@@ -582,16 +756,17 @@ cups_job_pause(int snum, struct printjob *pjob)
  * 'cups_job_resume()' - Resume a paused job.
  */
 
-static int
-cups_job_resume(int snum, struct printjob *pjob)
+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 */
+       TALLOC_CTX *frame = talloc_stackframe();
+       int             ret = 1;                /* Return value */
+       http_t          *http = NULL;           /* HTTP connection to server */
+       ipp_t           *request = NULL,        /* IPP Request */
+                       *response = NULL;       /* IPP Response */
+       cups_lang_t     *language = NULL;       /* Default language */
+       char *user = NULL;
        char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
-
+       size_t size;
 
        DEBUG(5,("cups_job_resume(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 
@@ -605,11 +780,8 @@ cups_job_resume(int snum, struct printjob *pjob)
        * 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);
+       if ((http = cups_connect(frame)) == NULL) {
+               goto out;
        }
 
        /*
@@ -630,7 +802,7 @@ cups_job_resume(int snum, struct printjob *pjob)
        language = cupsLangDefault();
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
-                    "attributes-charset", NULL, cupsLangEncoding(language));
+                     "attributes-charset", NULL, "utf-8");
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                     "attributes-natural-language", NULL, language->language);
@@ -639,32 +811,40 @@ cups_job_resume(int snum, struct printjob *pjob)
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 
+       if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
+               goto out;
+       }
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
-                    NULL, pjob->user);
+                    NULL, 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)
+       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;
+               }
+       } else {
                DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
-                        ippErrorString(cupsLastError())));
-          else
-               ret = 0;
-
-         ippDelete(response);
+                       ippErrorString(cupsLastError())));
        }
-       else
-         DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
-                  ippErrorString(cupsLastError())));
 
-       httpClose(http);
+ out:
+       if (response)
+               ippDelete(response);
+
+       if (language)
+               cupsLangFree(language);
+
+       if (http)
+               httpClose(http);
 
-       return (ret);
+       TALLOC_FREE(frame);
+       return ret;
 }
 
 
@@ -672,18 +852,27 @@ cups_job_resume(int snum, struct printjob *pjob)
  * 'cups_job_submit()' - Submit a job for printing.
  */
 
-static int
-cups_job_submit(int snum, struct printjob *pjob)
+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 */
+       TALLOC_CTX *frame = talloc_stackframe();
+       int             ret = 1;                /* Return value */
+       http_t          *http = NULL;           /* HTTP connection to server */
+       ipp_t           *request = NULL,        /* IPP Request */
+                       *response = NULL;       /* IPP Response */
+       ipp_attribute_t *attr_job_id = NULL;    /* IPP Attribute "job-id" */
+       cups_lang_t     *language = NULL;       /* Default language */
        char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
-       char            *clientname;    /* hostname of client for job-originating-host attribute */
-
-       DEBUG(5,("cups_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
+       char *new_jobname = NULL;
+       int             num_options = 0;
+       cups_option_t   *options = NULL;
+       char *printername = NULL;
+       char *user = NULL;
+       char *jobname = NULL;
+       char *cupsoptions = NULL;
+       char *filename = NULL;
+       size_t size;
+
+       DEBUG(5,("cups_job_submit(%d, %p)\n", snum, pjob));
 
        /*
         * Make sure we don't ask for passwords...
@@ -695,11 +884,8 @@ cups_job_submit(int snum, struct printjob *pjob)
        * 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);
+       if ((http = cups_connect(frame)) == NULL) {
+               goto out;
        }
 
        /*
@@ -721,88 +907,137 @@ cups_job_submit(int snum, struct printjob *pjob)
        language = cupsLangDefault();
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
-                    "attributes-charset", NULL, cupsLangEncoding(language));
+                     "attributes-charset", NULL, "utf-8");
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                     "attributes-natural-language", NULL, language->language);
 
+       if (!push_utf8_talloc(frame, &printername, lp_printername(snum),
+                             &size)) {
+               goto out;
+       }
        slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
-                PRINTERNAME(snum));
+                printername);
 
        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);
-
-       clientname = client_name();
-       if (strcmp(clientname, "UNKNOWN") == 0) {
-               clientname = client_addr();
+       if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
+               goto out;
        }
+       ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
+                    NULL, user);
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
                     "job-originating-host-name", NULL,
-                     clientname);
+                    pjob->clientmachine);
+
+       if (!push_utf8_talloc(frame, &jobname, pjob->jobname, &size)) {
+               goto out;
+       }
+       new_jobname = talloc_asprintf(frame,
+                       "%s%.8u %s", PRINT_SPOOL_PREFIX,
+                       pjob->jobid, jobname);
+       if (new_jobname == NULL) {
+               goto out;
+       }
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
-                    pjob->jobname);
+                    new_jobname);
+
+       /*
+        * add any options defined in smb.conf
+        */
+
+       if (!push_utf8_talloc(frame, &cupsoptions, lp_cups_options(snum), &size)) {
+               goto out;
+       }
+       num_options = 0;
+       options     = NULL;
+       num_options = cupsParseOptions(cupsoptions, num_options, &options);
+
+       if ( num_options )
+               cupsEncodeOptions(request, num_options, options);
 
        /*
        * Do the request and get back a response...
        */
 
-       slprintf(uri, sizeof(uri) - 1, "/printers/%s", PRINTERNAME(snum));
+       slprintf(uri, sizeof(uri) - 1, "/printers/%s", printername);
 
-        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),
+       if (!push_utf8_talloc(frame, &filename, pjob->filename, &size)) {
+               goto out;
+       }
+       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",
+                                lp_printername(snum),
                                 ippErrorString(cupsLastError())));
-               else
+               } else {
                        ret = 0;
-
-               ippDelete(response);
-       }
-       else
-               DEBUG(0,("Unable to print file to `%s' - %s\n", PRINTERNAME(snum),
+                       attr_job_id = ippFindAttribute(response, "job-id", IPP_TAG_INTEGER);
+                       if(attr_job_id) {
+                               pjob->sysjob = attr_job_id->values[0].integer;
+                               DEBUG(5,("cups_job_submit: job-id %d\n", pjob->sysjob));
+                       } else {
+                               DEBUG(0,("Missing job-id attribute in IPP response"));
+                       }
+               }
+       } else {
+               DEBUG(0,("Unable to print file to `%s' - %s\n",
+                        lp_printername(snum),
                         ippErrorString(cupsLastError())));
-
-       httpClose(http);
+       }
 
        if ( ret == 0 )
                unlink(pjob->filename);
        /* else print_job_end will do it for us */
 
-       return (ret);
-}
+ out:
+       if (response)
+               ippDelete(response);
+
+       if (language)
+               cupsLangFree(language);
+
+       if (http)
+               httpClose(http);
+
+       TALLOC_FREE(frame);
 
+       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)
+static int cups_queue_get(const char *sharename,
+               enum printing_types printing_type,
+               char *lpq_command,
+               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 */
+       TALLOC_CTX *frame = talloc_stackframe();
+       char *printername = NULL;
+       http_t          *http = NULL;           /* HTTP connection to server */
+       ipp_t           *request = NULL,        /* IPP Request */
+                       *response = NULL;       /* IPP Response */
+       ipp_attribute_t *attr = NULL;           /* Current attribute */
+       cups_lang_t     *language = NULL;       /* 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 */
+       int             qcount = 0,             /* Number of active queue entries */
+                       qalloc = 0;             /* Number of queue entries allocated */
+       print_queue_struct *queue = NULL,       /* Queue entries */
                        *temp;          /* Temporary pointer for queue */
-       const char      *user_name,     /* job-originating-user-name attribute */
-                       *job_name;      /* job-name attribute */
+       char            *user_name = NULL,      /* job-originating-user-name attribute */
+                       *job_name = NULL;       /* 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 */
+       size_t size;
        static const char *jattrs[] =   /* Requested job attributes */
                        {
                          "job-id",
@@ -819,8 +1054,18 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
                          "printer-state-message"
                        };
 
+       *q = NULL;
 
-       DEBUG(5,("cups_queue_get(%d, %p, %p)\n", snum, q, status));
+       /* HACK ALERT!!!  The problem with support the 'printer name'
+          option is that we key the tdb off the sharename.  So we will
+          overload the lpq_command string to pass in the printername
+          (which is basically what we do for non-cups printers ... using
+          the lpq_command to get the queue listing). */
+
+       if (!push_utf8_talloc(frame, &printername, lpq_command, &size)) {
+               goto out;
+       }
+       DEBUG(5,("cups_queue_get(%s, %p, %p)\n", lpq_command, q, status));
 
        /*
         * Make sure we don't ask for passwords...
@@ -832,19 +1077,15 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
        * 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);
+       if ((http = cups_connect(frame)) == NULL) {
+               goto out;
        }
 
        /*
         * Generate the printer URI...
        */
 
-       slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
-                PRINTERNAME(snum));
+       slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s", printername);
 
        /*
        * Build an IPP_GET_JOBS request, which requires the following
@@ -864,7 +1105,7 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
        language = cupsLangDefault();
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
-                     "attributes-charset", NULL, cupsLangEncoding(language));
+                     "attributes-charset", NULL, "utf-8");
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                      "attributes-natural-language", NULL, language->language);
@@ -881,22 +1122,16 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
        * Do the request and get back a response...
        */
 
-       if ((response = cupsDoRequest(http, request, "/")) == NULL)
-       {
+       if ((response = cupsDoRequest(http, request, "/")) == NULL) {
                DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
                         ippErrorString(cupsLastError())));
-               httpClose(http);
-               return (0);
+               goto out;
        }
 
-       if (response->request.status.status_code >= IPP_OK_CONFLICT)
-       {
+       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);
+               goto out;
        }
 
        /*
@@ -907,8 +1142,7 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
        qalloc = 0;
        queue  = NULL;
 
-        for (attr = response->attrs; attr != NULL; attr = attr->next)
-       {
+        for (attr = response->attrs; attr != NULL; attr = attr->next) {
               /*
                * Skip leading attributes until we hit a job...
                */
@@ -922,23 +1156,16 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
               /*
                * Allocate memory as needed...
                */
-               if (qcount >= qalloc)
-               {
+               if (qcount >= qalloc) {
                        qalloc += 16;
 
-                       temp = Realloc(queue, sizeof(print_queue_struct) * qalloc);
+                       queue = SMB_REALLOC_ARRAY(queue, print_queue_struct, qalloc);
 
-                       if (temp == NULL)
-                       {
+                       if (queue == NULL) {
                                DEBUG(0,("cups_queue_get: Not enough memory!"));
-                               ippDelete(response);
-                               httpClose(http);
-
-                               SAFE_FREE(queue);
-                               return (0);
+                               qcount = 0;
+                               goto out;
                        }
-
-                       queue = temp;
                }
 
                temp = queue + qcount;
@@ -956,10 +1183,8 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
                user_name    = NULL;
                job_name     = NULL;
 
-               while (attr != NULL && attr->group_tag == IPP_TAG_JOB)
-               {
-                       if (attr->name == NULL)
-                       {
+               while (attr != NULL && attr->group_tag == IPP_TAG_JOB) {
+                       if (attr->name == NULL) {
                                attr = attr->next;
                                break;
                        }
@@ -985,12 +1210,24 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
                                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;
+                           attr->value_tag == IPP_TAG_NAME) {
+                               if (!pull_utf8_talloc(frame,
+                                               &job_name,
+                                               attr->values[0].string.text,
+                                               &size)) {
+                                       goto out;
+                               }
+                       }
 
                        if (strcmp(attr->name, "job-originating-user-name") == 0 &&
-                           attr->value_tag == IPP_TAG_NAME)
-                               user_name = attr->values[0].string.text;
+                           attr->value_tag == IPP_TAG_NAME) {
+                               if (!pull_utf8_talloc(frame,
+                                               &user_name,
+                                               attr->values[0].string.text,
+                                               &size)) {
+                                       goto out;
+                               }
+                       }
 
                        attr = attr->next;
                }
@@ -999,15 +1236,14 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
                * See if we have everything needed...
                */
 
-               if (user_name == NULL || job_name == NULL || job_id == 0)
-               {
-                 if (attr == NULL)
-                   break;
-                 else
-                   continue;
+               if (user_name == NULL || job_name == NULL || job_id == 0) {
+                       if (attr == NULL)
+                               break;
+                       else
+                               continue;
                }
 
-               temp->job      = job_id;
+               temp->sysjob   = job_id;
                temp->size     = job_k_octets * 1024;
                temp->status   = job_status == IPP_JOB_PENDING ? LPQ_QUEUED :
                                 job_status == IPP_JOB_STOPPED ? LPQ_PAUSED :
@@ -1015,16 +1251,17 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
                                 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);
+               strlcpy(temp->fs_user, user_name, sizeof(temp->fs_user));
+               strlcpy(temp->fs_file, job_name, sizeof(temp->fs_file));
 
                qcount ++;
 
                if (attr == NULL)
-                 break;
+                       break;
        }
 
        ippDelete(response);
+       response = NULL;
 
        /*
        * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the
@@ -1041,10 +1278,8 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
        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));
+                     "attributes-charset", NULL, "utf-8");
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                      "attributes-natural-language", NULL, language->language);
@@ -1061,31 +1296,23 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
        * 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),
+       if ((response = cupsDoRequest(http, request, "/")) == NULL) {
+               DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
                         ippErrorString(cupsLastError())));
-               httpClose(http);
-               *q = queue;
-               return (qcount);
+               goto out;
        }
 
-       if (response->request.status.status_code >= IPP_OK_CONFLICT)
-       {
-               DEBUG(0,("Unable to get printer status for %s - %s\n", PRINTERNAME(snum),
+       if (response->request.status.status_code >= IPP_OK_CONFLICT) {
+               DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
                         ippErrorString(response->request.status.status_code)));
-               ippDelete(response);
-               httpClose(http);
-               *q = queue;
-               return (qcount);
+               goto out;
        }
 
        /*
         * Get the current printer status and convert it to the SAMBA values.
        */
 
-        if ((attr = ippFindAttribute(response, "printer-state", IPP_TAG_ENUM)) != NULL)
-       {
+        if ((attr = ippFindAttribute(response, "printer-state", IPP_TAG_ENUM)) != NULL) {
                if (attr->values[0].integer == IPP_PRINTER_STOPPED)
                        status->status = LPSTAT_STOPPED;
                else
@@ -1093,19 +1320,37 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
        }
 
         if ((attr = ippFindAttribute(response, "printer-state-message",
-                                    IPP_TAG_TEXT)) != NULL)
-               fstrcpy(status->message, attr->values[0].string.text);
+                                    IPP_TAG_TEXT)) != NULL) {
+               char *msg = NULL;
+               if (!pull_utf8_talloc(frame, &msg,
+                               attr->values[0].string.text,
+                               &size)) {
+                       SAFE_FREE(queue);
+                       qcount = 0;
+                       goto out;
+               }
+               fstrcpy(status->message, msg);
+       }
 
-        ippDelete(response);
+ out:
 
        /*
         * Return the job queue...
        */
 
-       httpClose(http);
-
        *q = queue;
-       return (qcount);
+
+       if (response)
+               ippDelete(response);
+
+       if (language)
+               cupsLangFree(language);
+
+       if (http)
+               httpClose(http);
+
+       TALLOC_FREE(frame);
+       return qcount;
 }
 
 
@@ -1113,17 +1358,18 @@ cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
  * 'cups_queue_pause()' - Pause a print queue.
  */
 
-static int
-cups_queue_pause(int snum)
+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 */
+       TALLOC_CTX *frame = talloc_stackframe();
+       int             ret = 1;                /* Return value */
+       http_t          *http = NULL;           /* HTTP connection to server */
+       ipp_t           *request = NULL,        /* IPP Request */
+                       *response = NULL;       /* IPP Response */
+       cups_lang_t     *language = NULL;       /* Default language */
+       char *printername = NULL;
+       char *username = NULL;
        char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
-
+       size_t size;
 
        DEBUG(5,("cups_queue_pause(%d)\n", snum));
 
@@ -1137,11 +1383,8 @@ cups_queue_pause(int snum)
         * 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);
+       if ((http = cups_connect(frame)) == NULL) {
+               goto out;
        }
 
        /*
@@ -1162,42 +1405,56 @@ cups_queue_pause(int snum)
        language = cupsLangDefault();
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
-                    "attributes-charset", NULL, cupsLangEncoding(language));
+                     "attributes-charset", NULL, "utf-8");
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                     "attributes-natural-language", NULL, language->language);
 
+       if (!push_utf8_talloc(frame, &printername, lp_printername(snum),
+                             &size)) {
+               goto out;
+       }
        slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
-                PRINTERNAME(snum));
+                printername);
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
 
+       if (!push_utf8_talloc(frame, &username, current_user_info.unix_name, &size)) {
+               goto out;
+       }
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
-                    NULL, current_user_info.unix_name);
+                    NULL, username);
 
        /*
        * 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",
+                                lp_printername(snum),
+                               ippErrorString(cupsLastError())));
+               } else {
+                       ret = 0;
+               }
+       } else {
+               DEBUG(0,("Unable to pause printer %s - %s\n",
+                        lp_printername(snum),
+                       ippErrorString(cupsLastError())));
+       }
 
-       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;
+ out:
+       if (response)
+               ippDelete(response);
 
-         ippDelete(response);
-       }
-       else
-         DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
-                  ippErrorString(cupsLastError())));
+       if (language)
+               cupsLangFree(language);
 
-       httpClose(http);
+       if (http)
+               httpClose(http);
 
-       return (ret);
+       TALLOC_FREE(frame);
+       return ret;
 }
 
 
@@ -1205,17 +1462,18 @@ cups_queue_pause(int snum)
  * 'cups_queue_resume()' - Restart a print queue.
  */
 
-static int
-cups_queue_resume(int snum)
+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 */
+       TALLOC_CTX *frame = talloc_stackframe();
+       int             ret = 1;                /* Return value */
+       http_t          *http = NULL;           /* HTTP connection to server */
+       ipp_t           *request = NULL,        /* IPP Request */
+                       *response = NULL;       /* IPP Response */
+       cups_lang_t     *language = NULL;       /* Default language */
+       char *printername = NULL;
+       char *username = NULL;
        char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
-
+       size_t size;
 
        DEBUG(5,("cups_queue_resume(%d)\n", snum));
 
@@ -1229,11 +1487,8 @@ cups_queue_resume(int snum)
        * 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);
+       if ((http = cups_connect(frame)) == NULL) {
+               goto out;
        }
 
        /*
@@ -1254,46 +1509,76 @@ cups_queue_resume(int snum)
        language = cupsLangDefault();
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
-                    "attributes-charset", NULL, cupsLangEncoding(language));
+                     "attributes-charset", NULL, "utf-8");
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                     "attributes-natural-language", NULL, language->language);
 
+       if (!push_utf8_talloc(frame, &printername, lp_printername(snum),
+                             &size)) {
+               goto out;
+       }
        slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
-                PRINTERNAME(snum));
+                printername);
 
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
 
+       if (!push_utf8_talloc(frame, &username, current_user_info.unix_name, &size)) {
+               goto out;
+       }
        ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
-                    NULL, current_user_info.unix_name);
+                    NULL, username);
 
        /*
        * 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",
+                                lp_printername(snum),
+                               ippErrorString(cupsLastError())));
+               } else {
+                       ret = 0;
+               }
+       } else {
+               DEBUG(0,("Unable to resume printer %s - %s\n",
+                        lp_printername(snum),
+                       ippErrorString(cupsLastError())));
+       }
 
-       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;
+ out:
+       if (response)
+               ippDelete(response);
 
-         ippDelete(response);
-       }
-       else
-         DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
-                  ippErrorString(cupsLastError())));
+       if (language)
+               cupsLangFree(language);
 
-       httpClose(http);
+       if (http)
+               httpClose(http);
 
-       return (ret);
+       TALLOC_FREE(frame);
+       return ret;
 }
 
+/*******************************************************************
+ * CUPS printing interface definitions...
+ ******************************************************************/
+
+struct printif cups_printif =
+{
+       PRINT_CUPS,
+       cups_queue_get,
+       cups_queue_pause,
+       cups_queue_resume,
+       cups_job_delete,
+       cups_job_pause,
+       cups_job_resume,
+       cups_job_submit,
+};
 
 #else
  /* this keeps fussy compilers happy */
+ void print_cups_dummy(void);
  void print_cups_dummy(void) {}
 #endif /* HAVE_CUPS */