/src/samba/source3/printing/print_cups.c

Source
/*
 * 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 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, 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"
#include "lib/util/sys_rw.h"
#include "lib/util/string_wrappers.h"

#ifdef HAVE_CUPS
#include <cups/cups.h>
#include <cups/language.h>
#include <cups/http.h>

/* CUPS prior to version 1.7 doesn't have HTTP_URI_STATUS_OK */
#if (CUPS_VERSION_MAJOR == 1) && (CUPS_VERSION_MINOR < 7)
#define HTTP_URI_STATUS_OK HTTP_URI_OK
#endif

#if (CUPS_VERSION_MAJOR > 1) || (CUPS_VERSION_MINOR > 5)
#define HAVE_CUPS_1_6 1
#endif

#ifndef HAVE_CUPS_1_6
#define ippGetGroupTag(attr)  attr->group_tag
#define ippGetName(attr)      attr->name
#define ippGetValueTag(attr)  attr->value_tag
#define ippGetStatusCode(ipp) ipp->request.status.status_code
#define ippGetInteger(attr, element) attr->values[element].integer
#define ippGetString(attr, element, language) attr->values[element].string.text

static ipp_attribute_t *
ippFirstAttribute(ipp_t *ipp)
{
  if (!ipp)
    return (NULL);
  return (ipp->current = ipp->attrs);
}

static ipp_attribute_t *
ippNextAttribute(ipp_t *ipp)
{
  if (!ipp || !ipp->current)
    return (NULL);
  return (ipp->current = ipp->current->next);
}

static int ippSetOperation(ipp_t *ipp, ipp_op_t op)
{
    ipp->request.op.operation_id = op;
    return (1);
}

static int ippSetRequestId(ipp_t *ipp, int request_id)
{
    ipp->request.any.request_id = request_id;
    return (1);
}
#endif

static SIG_ATOMIC_T gotalarm;

/***************************************************************
 Signal function to tell us we timed out.
****************************************************************/

static void gotalarm_sig(int signum)
{
        gotalarm = 1;
}

extern userdom_struct current_user_info;

/*
 * '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);
}

static http_t *cups_connect(TALLOC_CTX *frame)
{
  const struct loadparm_substitution *lp_sub =
    loadparm_s3_global_substitution();
  http_t *http = NULL;
  char *server = NULL, *p = NULL;
  int port;
  int timeout = lp_cups_connection_timeout();
  size_t size;

  if (lp_cups_server(talloc_tos(), lp_sub) != NULL && strlen(lp_cups_server(talloc_tos(), lp_sub)) > 0) {
    if (!push_utf8_talloc(frame, &server, lp_cups_server(talloc_tos(), lp_sub), &size)) {
      return NULL;
    }
  } else {
    server = talloc_strdup(frame,cupsServer());
  }
  if (!server) {
    return NULL;
  }

  p = strchr(server, ':');
  if (p) {
    port = atoi(p+1);
    *p = '\0';
  } else {
    port = ippPort();
  }

  DEBUG(10, ("connecting to cups server %s:%d\n",
       server, port));

  gotalarm = 0;

  if (timeout) {
                CatchSignal(SIGALRM, gotalarm_sig);
                alarm(timeout);
        }

#if defined(HAVE_HTTPCONNECT2)
  http = httpConnect2(server,
          port,
          NULL,
          AF_UNSPEC,
          lp_cups_encrypt() ?
        HTTP_ENCRYPTION_ALWAYS :
        HTTP_ENCRYPTION_IF_REQUESTED,
          1, /* blocking */
          30 * 1000, /* timeout */
          NULL);
#elif defined(HAVE_HTTPCONNECTENCRYPT)
  http = httpConnectEncrypt(server, port, lp_cups_encrypt());
#else
  http = httpConnect(server, port);
#endif


  CatchSignal(SIGALRM, SIG_IGN);
        alarm(0);

  if (http == NULL) {
    DEBUG(3,("Unable to connect to CUPS server %s:%d - %s\n",
       server, port, strerror(errno)));
  }

  return http;
}

static bool send_pcap_blob(DATA_BLOB *pcap_blob, int fd)
{
  size_t ret;

  ret = sys_write(fd, &pcap_blob->length, sizeof(pcap_blob->length));
  if (ret != sizeof(pcap_blob->length)) {
    return false;
  }

  ret = sys_write(fd, pcap_blob->data, pcap_blob->length);
  if (ret != pcap_blob->length) {
    return false;
  }

  DEBUG(10, ("successfully sent blob of len %d\n", (int)ret));
  return true;
}

static bool recv_pcap_blob(TALLOC_CTX *mem_ctx, int fd, DATA_BLOB *pcap_blob)
{
  size_t blob_len;
  size_t ret;

  ret = sys_read(fd, &blob_len, sizeof(blob_len));
  if (ret != sizeof(blob_len)) {
    return false;
  }

  *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;
  }

  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 = ippFirstAttribute(response); attr != NULL;) {
         /*
    * Skip leading attributes until we hit a printer...
    */

    while (attr != NULL && ippGetGroupTag(attr) != IPP_TAG_PRINTER)
      attr = ippNextAttribute(response);

    if (attr == NULL)
      break;

         /*
    * Pull the needed attributes from this printer...
    */

    name       = NULL;
    info       = NULL;

    while (attr != NULL && ippGetGroupTag(attr) == IPP_TAG_PRINTER) {
      size_t size;
      if (strcmp(ippGetName(attr), "printer-name") == 0 &&
          ippGetValueTag(attr) == IPP_TAG_NAME) {
        if (!pull_utf8_talloc(mem_ctx,
            &name,
            ippGetString(attr, 0, NULL),
            &size)) {
          goto err_out;
        }
      }

      if (strcmp(ippGetName(attr), "printer-info") == 0 &&
          ippGetValueTag(attr) == IPP_TAG_TEXT) {
        if (!pull_utf8_talloc(mem_ctx,
            &info,
            ippGetString(attr, 0, NULL),
            &size)) {
          goto err_out;
        }
      }

      if (strcmp(ippGetName(attr), "printer-location") == 0 &&
          ippGetValueTag(attr) == IPP_TAG_TEXT) {
        if (!pull_utf8_talloc(mem_ctx,
            &location,
            ippGetString(attr, 0, NULL),
            &size)) {
          goto err_out;
        }
      }

      attr = ippNextAttribute(response);
    }

         /*
    * See if we have everything needed...
    */

    if (name == NULL)
      break;

    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++;
  }

  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 successfully 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"));

       /*
        * 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
  *    attributes-natural-language
  *    requested-attributes
  */

  request = ippNew();

  ippSetOperation(request, CUPS_GET_PRINTERS);
  ippSetRequestId(request, 1);

  language = cupsLangDefault();

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                     "attributes-charset", NULL, "utf-8");

  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);

  if ((response = cupsDoRequest(http, request, "/")) == NULL) {
    DEBUG(0,("Unable to get printer list - %s\n",
       ippErrorString(cupsLastError())));
    goto out;
  }

  ret = process_cups_printers_response(frame, response, &pcap_data);
  if (!ret) {
    DEBUG(0,("failed to process cups response\n"));
    goto out;
  }

  ippDelete(response);
  response = NULL;

       /*
  * Build a CUPS_GET_CLASSES request, which requires the following
  * attributes:
  *
  *    attributes-charset
  *    attributes-natural-language
  *    requested-attributes
  */

  request = ippNew();

  ippSetOperation(request, CUPS_GET_CLASSES);
  ippSetRequestId(request, 1);

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                     "attributes-charset", NULL, "utf-8");

  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);

  if ((response = cupsDoRequest(http, request, "/")) == NULL) {
    DEBUG(0,("Unable to get printer list - %s\n",
       ippErrorString(cupsLastError())));
    goto out;
  }

  ret = process_cups_printers_response(frame, response, &pcap_data);
  if (!ret) {
    DEBUG(0,("failed to process cups response\n"));
    goto out;
  }

  pcap_data.status = NT_STATUS_OK;
 out:
  if (response)
    ippDelete(response);

  if (language)
    cupsLangFree(language);

  if (http)
    httpClose(http);

  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);
  }

  TALLOC_FREE(frame);
  return ret;
}

static struct tevent_fd *cache_fd_event;

static bool cups_pcap_load_async(struct tevent_context *ev,
         struct messaging_context *msg_ctx,
         int *pfd)
{
  int fds[2];
  pid_t pid;
  NTSTATUS status;

  *pfd = -1;

  if (cache_fd_event) {
    DEBUG(3,("cups_pcap_load_async: already waiting for "
      "a refresh event\n" ));
    return false;
  }

  DEBUG(5,("cups_pcap_load_async: asynchronously loading cups printers\n"));

  if (pipe(fds) == -1) {
    return false;
  }

  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 (pid) {
    DEBUG(10,("cups_pcap_load_async: child pid = %u\n",
      (unsigned int)pid ));
    /* Parent. */
    close(fds[1]);
    *pfd = fds[0];
    return true;
  }

  /* Child. */

  close_all_print_db();

  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");
  }

  close(fds[0]);
  cups_cache_reload_async(fds[1]);
  close(fds[1]);
  TALLOC_FREE(msg_ctx);
  _exit(0);
}

struct cups_async_cb_args {
  int pipe_fd;
  struct tevent_context *event_ctx;
  struct messaging_context *msg_ctx;
  void (*post_cache_fill_fn)(struct tevent_context *,
           struct messaging_context *);
};

static void cups_async_callback(struct tevent_context *event_ctx,
        struct tevent_fd *event,
        uint16_t 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;
  uint32_t 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;
  }

  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;
  }

  if (!NT_STATUS_IS_OK(pcap_data.status)) {
    DEBUG(3,("failed to retrieve printer list: %s\n",
       nt_errstr(pcap_data.status)));
    goto err_out;
  }

  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;
    }
  }

  /* 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);
  TALLOC_FREE(cache_fd_event);
  close(cb_args->pipe_fd);
  TALLOC_FREE(cb_args);
}

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;

  cb_args = talloc(NULL, struct cups_async_cb_args);
  if (cb_args == NULL) {
    return false;
  }

  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;

  /* Set up an async refresh. */
  if (!cups_pcap_load_async(ev, msg_ctx, p_pipe_fd)) {
    talloc_free(cb_args);
    return false;
  }

  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 = tevent_add_fd(ev,
        NULL, *p_pipe_fd,
        TEVENT_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(const char *sharename, const char *lprm_command, struct printjob *pjob)
{
  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] = {0}; /* printer-uri attribute */
  http_uri_status_t ustatus;
  size_t size;

  DEBUG(5,("cups_job_delete(%s, %p (%d))\n", sharename, pjob, pjob->sysjob));

       /*
        * Make sure we don't ask for passwords...
  */

        cupsSetPasswordCB(cups_passwd_cb);

       /*
  * Try to connect to the server...
  */

  if ((http = cups_connect(frame)) == NULL) {
    goto out;
  }

       /*
  * Build an IPP_CANCEL_JOB request, which requires the following
  * attributes:
  *
  *    attributes-charset
  *    attributes-natural-language
  *    job-uri
  *    requesting-user-name
  */

  request = ippNew();

  ippSetOperation(request, IPP_CANCEL_JOB);
  ippSetRequestId(request, 1);

  language = cupsLangDefault();

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                     "attributes-charset", NULL, "utf-8");

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
               "attributes-natural-language", NULL, language->language);

  ustatus = httpAssembleURIf(HTTP_URI_CODING_ALL,
           uri,
           sizeof(uri),
           "ipp",
           NULL, /* username */
           "localhost",
           ippPort(),
           "/jobs/%d",
           pjob->sysjob);
  if (ustatus != HTTP_URI_STATUS_OK) {
    goto out;
  }

  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, user);

       /*
  * Do the request and get back a response...
  */

  if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
    if (ippGetStatusCode(response) >= 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())));
  }

 out:
  if (response)
    ippDelete(response);

  if (language)
    cupsLangFree(language);

  if (http)
    httpClose(http);

  TALLOC_FREE(frame);
  return ret;
}


/*
 * 'cups_job_pause()' - Pause a job.
 */

static int cups_job_pause(int snum, struct printjob *pjob)
{
  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] = {0}; /* printer-uri attribute */
  http_uri_status_t ustatus;
  size_t size;

  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 = cups_connect(frame)) == NULL) {
    goto out;
  }

       /*
  * Build an IPP_HOLD_JOB request, which requires the following
  * attributes:
  *
  *    attributes-charset
  *    attributes-natural-language
  *    job-uri
  *    requesting-user-name
  */

  request = ippNew();

  ippSetOperation(request, IPP_HOLD_JOB);
  ippSetRequestId(request, 1);

  language = cupsLangDefault();

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                     "attributes-charset", NULL, "utf-8");

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
               "attributes-natural-language", NULL, language->language);

  ustatus = httpAssembleURIf(HTTP_URI_CODING_ALL,
           uri,
           sizeof(uri),
           "ipp",
           NULL, /* username */
           "localhost",
           ippPort(),
           "/jobs/%d",
           pjob->sysjob);
  if (ustatus != HTTP_URI_STATUS_OK) {
    goto out;
  }

  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, user);

       /*
  * Do the request and get back a response...
  */

  if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
    if (ippGetStatusCode(response) >= 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())));
  }

 out:
  if (response)
    ippDelete(response);

  if (language)
    cupsLangFree(language);

  if (http)
    httpClose(http);

  TALLOC_FREE(frame);
  return ret;
}


/*
 * 'cups_job_resume()' - Resume a paused job.
 */

static int cups_job_resume(int snum, struct printjob *pjob)
{
  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] = {0}; /* printer-uri attribute */
  http_uri_status_t ustatus;
  size_t size;

  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 = cups_connect(frame)) == NULL) {
    goto out;
  }

       /*
  * Build an IPP_RELEASE_JOB request, which requires the following
  * attributes:
  *
  *    attributes-charset
  *    attributes-natural-language
  *    job-uri
  *    requesting-user-name
  */

  request = ippNew();

  ippSetOperation(request, IPP_RELEASE_JOB);
  ippSetRequestId(request, 1);

  language = cupsLangDefault();

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                     "attributes-charset", NULL, "utf-8");

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
               "attributes-natural-language", NULL, language->language);

  ustatus = httpAssembleURIf(HTTP_URI_CODING_ALL,
           uri,
           sizeof(uri),
           "ipp",
           NULL, /* username */
           "localhost",
           ippPort(),
           "/jobs/%d",
           pjob->sysjob);
  if (ustatus != HTTP_URI_STATUS_OK) {
    goto out;
  }

  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, user);

       /*
  * Do the request and get back a response...
  */

  if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
    if (ippGetStatusCode(response) >= 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())));
  }

 out:
  if (response)
    ippDelete(response);

  if (language)
    cupsLangFree(language);

  if (http)
    httpClose(http);

  TALLOC_FREE(frame);
  return ret;
}


/*
 * 'cups_job_submit()' - Submit a job for printing.
 */

static int cups_job_submit(int snum, struct printjob *pjob,
         enum printing_types printing_type,
         char *lpq_cmd)
{
  TALLOC_CTX *frame = talloc_stackframe();
  const struct loadparm_substitution *lp_sub =
    loadparm_s3_global_substitution();
  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] = {0}; /* printer-uri attribute */
  http_uri_status_t ustatus;
  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...
  */

        cupsSetPasswordCB(cups_passwd_cb);

       /*
  * Try to connect to the server...
  */

  if ((http = cups_connect(frame)) == NULL) {
    goto out;
  }

       /*
  * 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();

  ippSetOperation(request, IPP_PRINT_JOB);
  ippSetRequestId(request, 1);

  language = cupsLangDefault();

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                     "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(talloc_tos(), lp_sub, snum),
            &size)) {
    goto out;
  }
  ustatus = httpAssembleURIf(HTTP_URI_CODING_ALL,
           uri,
           sizeof(uri),
           "ipp",
           NULL, /* username */
           "localhost",
           ippPort(),
           "/printers/%s",
           printername);
  if (ustatus != HTTP_URI_STATUS_OK) {
    goto out;
  }

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
               "printer-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, user);

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
               "job-originating-host-name", NULL,
         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,
               new_jobname);

  /*
   * add any options defined in smb.conf
   */

  if (!push_utf8_talloc(frame, &cupsoptions,
            lp_cups_options(talloc_tos(), lp_sub, 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...
  */

  ustatus = httpAssembleURIf(HTTP_URI_CODING_ALL,
           uri,
           sizeof(uri),
           "ipp",
           NULL, /* username */
           "localhost",
           ippPort(),
           "/printers/%s",
           printername);
  if (ustatus != HTTP_URI_STATUS_OK) {
    goto out;
  }

  if (!push_utf8_talloc(frame, &filename, pjob->filename, &size)) {
    goto out;
  }
  if ((response = cupsDoFileRequest(http, request, uri, pjob->filename)) != NULL) {
    if (ippGetStatusCode(response) >= IPP_OK_CONFLICT) {
      DEBUG(0,("Unable to print file to %s - %s\n",
         lp_printername(talloc_tos(), lp_sub, snum),
               ippErrorString(cupsLastError())));
    } else {
      ret = 0;
      attr_job_id = ippFindAttribute(response, "job-id", IPP_TAG_INTEGER);
      if(attr_job_id) {
        pjob->sysjob = ippGetInteger(attr_job_id, 0);
        DEBUG(5,("cups_job_submit: job-id %d\n", pjob->sysjob));
      } else {
        DEBUG(0,("Missing job-id attribute in IPP response\n"));
      }
    }
  } else {
    DEBUG(0,("Unable to print file to `%s' - %s\n",
       lp_printername(talloc_tos(), lp_sub, snum),
       ippErrorString(cupsLastError())));
  }

  if ( ret == 0 )
    unlink(pjob->filename);
  /* else print_job_end will do it for us */

 out:
  if (response)
    ippDelete(response);

  if (language)
    cupsLangFree(language);

  if (http)
    httpClose(http);

  if (num_options) {
    cupsFreeOptions(num_options, options);
  }
  TALLOC_FREE(frame);

  return ret;
}

/*
 * 'cups_queue_get()' - Get all the jobs in the print queue.
 */

static int cups_queue_get(const char *sharename,
               enum printing_types printing_type,
               char *lpq_command,
               print_queue_struct **q,
               print_status_struct *status)
{
  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] = {0}; /* printer-uri attribute */
  http_uri_status_t ustatus;
  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 */
  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",
        "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"
      };

  *q = NULL;

  /* 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...
  */

        cupsSetPasswordCB(cups_passwd_cb);

       /*
  * Try to connect to the server...
  */

  if ((http = cups_connect(frame)) == NULL) {
    goto out;
  }

       /*
        * Generate the printer URI...
  */

  ustatus = httpAssembleURIf(HTTP_URI_CODING_ALL,
           uri,
           sizeof(uri),
           "ipp",
           NULL, /* username */
           "localhost",
           ippPort(),
           "/printers/%s",
           printername);
  if (ustatus != HTTP_URI_STATUS_OK) {
    goto out;
  }

       /*
  * Build an IPP_GET_JOBS request, which requires the following
  * attributes:
  *
  *    attributes-charset
  *    attributes-natural-language
  *    requested-attributes
  *    printer-uri
  */

  request = ippNew();

  ippSetOperation(request, IPP_GET_JOBS);
  ippSetRequestId(request, 1);

  language = cupsLangDefault();

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                     "attributes-charset", NULL, "utf-8");

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                     "attributes-natural-language", NULL, language->language);

        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
                "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())));
    goto out;
  }

  if (ippGetStatusCode(response) >= IPP_OK_CONFLICT) {
    DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
       ippErrorString(ippGetStatusCode(response))));
    goto out;
  }

       /*
        * Process the jobs...
  */

        qcount = 0;
  qalloc = 0;
  queue  = NULL;

        for (attr = ippFirstAttribute(response); attr != NULL; attr = ippNextAttribute(response)) {
         /*
    * Skip leading attributes until we hit a job...
    */

    while (attr != NULL && ippGetGroupTag(attr) != IPP_TAG_JOB)
      attr = ippNextAttribute(response);

    if (attr == NULL)
      break;

         /*
          * Allocate memory as needed...
    */
    if (qcount >= qalloc) {
      qalloc += 16;

      queue = SMB_REALLOC_ARRAY(queue, print_queue_struct, qalloc);

      if (queue == NULL) {
        DEBUG(0,("cups_queue_get: Not enough memory!\n"));
        qcount = 0;
        goto out;
      }
    }

    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 && ippGetGroupTag(attr) == IPP_TAG_JOB) {
      if (ippGetName(attr) == NULL) {
        attr = ippNextAttribute(response);
        break;
      }

      if (strcmp(ippGetName(attr), "job-id") == 0 &&
          ippGetValueTag(attr) == IPP_TAG_INTEGER)
        job_id = ippGetInteger(attr, 0);

      if (strcmp(ippGetName(attr), "job-k-octets") == 0 &&
          ippGetValueTag(attr) == IPP_TAG_INTEGER)
        job_k_octets = ippGetInteger(attr, 0);

      if (strcmp(ippGetName(attr), "job-priority") == 0 &&
          ippGetValueTag(attr) == IPP_TAG_INTEGER)
        job_priority = ippGetInteger(attr, 0);

      if (strcmp(ippGetName(attr), "job-state") == 0 &&
          ippGetValueTag(attr) == IPP_TAG_ENUM)
        job_status = (ipp_jstate_t)ippGetInteger(attr, 0);

      if (strcmp(ippGetName(attr), "time-at-creation") == 0 &&
          ippGetValueTag(attr) == IPP_TAG_INTEGER)
        job_time = ippGetInteger(attr, 0);

      if (strcmp(ippGetName(attr), "job-name") == 0 &&
          ippGetValueTag(attr) == IPP_TAG_NAME) {
        if (!pull_utf8_talloc(frame,
            &job_name,
            ippGetString(attr, 0, NULL),
            &size)) {
          goto out;
        }
      }

      if (strcmp(ippGetName(attr), "job-originating-user-name") == 0 &&
          ippGetValueTag(attr) == IPP_TAG_NAME) {
        if (!pull_utf8_talloc(frame,
            &user_name,
            ippGetString(attr, 0, NULL),
            &size)) {
          goto out;
        }
      }

      attr = ippNextAttribute(response);
    }

         /*
    * See if we have everything needed...
    */

    if (user_name == NULL || job_name == NULL || job_id == 0) {
      if (attr == NULL)
        break;
      else
        continue;
    }

    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 :
                                 job_status == IPP_JOB_HELD ? LPQ_PAUSED :
               LPQ_PRINTING;
    temp->priority = job_priority;
    temp->time     = job_time;
    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;
  }

  ippDelete(response);
  response = NULL;

       /*
  * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the
  * following attributes:
  *
  *    attributes-charset
  *    attributes-natural-language
  *    requested-attributes
  *    printer-uri
  */

  request = ippNew();

  ippSetOperation(request, IPP_GET_PRINTER_ATTRIBUTES);
  ippSetRequestId(request, 1);

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                     "attributes-charset", NULL, "utf-8");

  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,
       ippErrorString(cupsLastError())));
    goto out;
  }

  if (ippGetStatusCode(response) >= IPP_OK_CONFLICT) {
    DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
       ippErrorString(ippGetStatusCode(response))));
    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 (ippGetInteger(attr, 0) == IPP_PRINTER_STOPPED)
      status->status = LPSTAT_STOPPED;
    else
      status->status = LPSTAT_OK;
  }

        if ((attr = ippFindAttribute(response, "printer-state-message",
                               IPP_TAG_TEXT)) != NULL) {
    char *msg = NULL;
    if (!pull_utf8_talloc(frame, &msg,
        ippGetString(attr, 0, NULL),
        &size)) {
      SAFE_FREE(queue);
      qcount = 0;
      goto out;
    }
          fstrcpy(status->message, msg);
  }

 out:

       /*
        * Return the job queue...
  */

  *q = queue;

  if (response)
    ippDelete(response);

  if (language)
    cupsLangFree(language);

  if (http)
    httpClose(http);

  TALLOC_FREE(frame);
  return qcount;
}


/*
 * 'cups_queue_pause()' - Pause a print queue.
 */

static int cups_queue_pause(int snum)
{
  TALLOC_CTX *frame = talloc_stackframe();
  const struct loadparm_substitution *lp_sub =
    loadparm_s3_global_substitution();
  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] = {0}; /* printer-uri attribute */
  http_uri_status_t ustatus;
  size_t size;

  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 = cups_connect(frame)) == NULL) {
    goto out;
  }

  /*
   * Build an IPP_PAUSE_PRINTER request, which requires the following
   * attributes:
   *
   *    attributes-charset
   *    attributes-natural-language
   *    printer-uri
   *    requesting-user-name
   */

  request = ippNew();

  ippSetOperation(request, IPP_PAUSE_PRINTER);
  ippSetRequestId(request, 1);

  language = cupsLangDefault();

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                     "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(talloc_tos(), lp_sub, snum), &size)) {
    goto out;
  }
  ustatus = httpAssembleURIf(HTTP_URI_CODING_ALL,
           uri,
           sizeof(uri),
           "ipp",
           NULL, /* username */
           "localhost",
           ippPort(),
           "/printers/%s",
           printername);
  if (ustatus != HTTP_URI_STATUS_OK) {
    goto out;
  }

  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, username);

       /*
  * Do the request and get back a response...
  */

  if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
    if (ippGetStatusCode(response) >= IPP_OK_CONFLICT) {
      DEBUG(0,("Unable to pause printer %s - %s\n",
         lp_printername(talloc_tos(), lp_sub, snum),
        ippErrorString(cupsLastError())));
    } else {
      ret = 0;
    }
  } else {
    DEBUG(0,("Unable to pause printer %s - %s\n",
       lp_printername(talloc_tos(), lp_sub, snum),
      ippErrorString(cupsLastError())));
  }

 out:
  if (response)
    ippDelete(response);

  if (language)
    cupsLangFree(language);

  if (http)
    httpClose(http);

  TALLOC_FREE(frame);
  return ret;
}


/*
 * 'cups_queue_resume()' - Restart a print queue.
 */

static int cups_queue_resume(int snum)
{
  TALLOC_CTX *frame = talloc_stackframe();
  const struct loadparm_substitution *lp_sub =
    loadparm_s3_global_substitution();
  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] = {0}; /* printer-uri attribute */
  http_uri_status_t ustatus;
  size_t size;

  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 = cups_connect(frame)) == NULL) {
    goto out;
  }

       /*
  * Build an IPP_RESUME_PRINTER request, which requires the following
  * attributes:
  *
  *    attributes-charset
  *    attributes-natural-language
  *    printer-uri
  *    requesting-user-name
  */

  request = ippNew();

  ippSetOperation(request, IPP_RESUME_PRINTER);
  ippSetRequestId(request, 1);

  language = cupsLangDefault();

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                     "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(talloc_tos(), lp_sub, snum),
            &size)) {
    goto out;
  }
  ustatus = httpAssembleURIf(HTTP_URI_CODING_ALL,
           uri,
           sizeof(uri),
           "ipp",
           NULL, /* username */
           "localhost",
           ippPort(),
           "/printers/%s",
           printername);
  if (ustatus != HTTP_URI_STATUS_OK) {
    goto out;
  }

  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, username);

       /*
  * Do the request and get back a response...
  */

  if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
    if (ippGetStatusCode(response) >= IPP_OK_CONFLICT) {
      DEBUG(0,("Unable to resume printer %s - %s\n",
         lp_printername(talloc_tos(), lp_sub, snum),
        ippErrorString(cupsLastError())));
    } else {
      ret = 0;
    }
  } else {
    DEBUG(0,("Unable to resume printer %s - %s\n",
       lp_printername(talloc_tos(), lp_sub, snum),
      ippErrorString(cupsLastError())));
  }

 out:
  if (response)
    ippDelete(response);

  if (language)
    cupsLangFree(language);

  if (http)
    httpClose(http);

  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 */

Coverage Report

Created: 2026-02-14 07:07