char *					/* O - Buffer */
_cupsStrDate(char   *buf,		/* I - Buffer */
             size_t bufsize,		/* I - Size of buffer */
	     time_t timeval)		/* I - Time value */
{
  struct tm	*dateval;		/* Local date/time */
  char		temp[1024];		/* Temporary buffer */
  _cups_globals_t *cg = _cupsGlobals();	/* Per-thread globals */


  if (!cg->lang_default)
    cg->lang_default = cupsLangDefault();

  dateval = localtime(&timeval);

  if (cg->lang_default->encoding != CUPS_UTF8)
  {
    strftime(temp, sizeof(temp), "%c", dateval);
    cupsCharsetToUTF8((cups_utf8_t *)buf, temp, (int)bufsize, cg->lang_default->encoding);
  }
  else
    strftime(buf, bufsize, "%c", dateval);

  return (buf);
}

const char * cups_get_language (void)
{
        cups_lang_t *language;

        language = cupsLangDefault();           /* needed for conversion */
        return cupsLangEncoding(language);
}

int					/* O - 0 on success, non-zero on error */
export_dest(http_t     *http,		/* I - Connection to server */
            const char *dest)		/* I - Destination to export */
{
  int		status;			/* Status of export */
  char		ppdfile[1024],		/* PPD file for printer drivers */
		prompt[1024];		/* Password prompt */
  int		tries;			/* Number of tries */


 /*
  * Get the Windows PPD file for the printer...
  */

  if (!cupsAdminCreateWindowsPPD(http, dest, ppdfile, sizeof(ppdfile)))
  {
    _cupsLangPrintf(stderr,
                    _("cupsaddsmb: No PPD file for printer \"%s\" - %s"),
        	    dest, cupsLastErrorString());
    return (1);
  }

 /*
  * Try to export it...
  */

  for (status = 0, tries = 0; !status && tries < 3; tries ++)
  {
   /*
    * Get the password, as needed...
    */

    if (!SAMBAPassword)
    {
      snprintf(prompt, sizeof(prompt),
               _cupsLangString(cupsLangDefault(),
	                       _("Password for %s required to access %s via "
			         "SAMBA: ")),
	       SAMBAUser, SAMBAServer);

      if ((SAMBAPassword = cupsGetPassword(prompt)) == NULL)
	break;
    }

    status = cupsAdminExportSamba(dest, ppdfile, SAMBAServer,
                                  SAMBAUser, SAMBAPassword,
				  Verbosity ? stderr : NULL);

    if (!status && cupsLastError() == IPP_NOT_FOUND)
      break;
  }

  unlink(ppdfile);

  return (!status);
}

int					/* O - Number of bytes written */
_cupsLangPrintFilter(
    FILE       *fp,			/* I - File to write to */
    const char *prefix,			/* I - Non-localized message prefix */
    const char *message,		/* I - Message string to use */
    ...)				/* I - Additional arguments as needed */
{
  ssize_t	bytes;			/* Number of bytes formatted */
  char		temp[2048],		/* Temporary format buffer */
		buffer[2048],		/* Message buffer */
		output[8192];		/* Output buffer */
  va_list 	ap;			/* Pointer to additional arguments */
  _cups_globals_t *cg;			/* Global data */


 /*
  * Range check...
  */

  if (!fp || !message)
    return (-1);

  cg = _cupsGlobals();

  if (!cg->lang_default)
    cg->lang_default = cupsLangDefault();

 /*
  * Format the string...
  */

  va_start(ap, message);
  snprintf(temp, sizeof(temp), "%s: %s\n", prefix,
	   _cupsLangString(cg->lang_default, message));
  vsnprintf(buffer, sizeof(buffer), temp, ap);
  va_end(ap);

 /*
  * Transcode to the destination charset...
  */

  bytes = cupsUTF8ToCharset(output, (cups_utf8_t *)buffer, sizeof(output),
                            cg->lang_default->encoding);

 /*
  * Write the string and return the number of bytes written...
  */

  if (bytes > 0)
    return ((int)fwrite(output, 1, (size_t)bytes, fp));
  else
    return ((int)bytes);
}

//////////////////////////////////////////////////////////////
//
// CS     :	PRIVATE cups_lang_t * bjcupsLangDefault()
// IN     : none
// OUT    : LC_ALL(locale)
// RETURN : pointer to cupa_lang_t structure
//
// This routine written for cups-1.1.19 Turbolinux10(Suzuka)
// Replace to cupsLangDefault()
//
PRIVATE cups_lang_t * bjcupsLangDefault( )
{
	cups_lang_t	*pLanguage;
	char		*tLang;

	if( (tLang = getenv("LC_ALL"))==NULL)
			tLang = getenv("LANG");

	pLanguage = cupsLangDefault();
	setlocale(LC_ALL,tLang);

	return pLanguage;
}

static cups_lang_t *			/* O - Current language */
ppd_ll_CC(char   *ll_CC,		/* O - Country-specific locale name */
          size_t ll_CC_size)		/* I - Size of country-specific name */
{
  cups_lang_t	*lang;			/* Current language */


 /*
  * Get the current locale...
  */

  if ((lang = cupsLangDefault()) == NULL)
  {
    strlcpy(ll_CC, "en_US", ll_CC_size);
    return (NULL);
  }

 /*
  * Copy the locale name...
  */

  strlcpy(ll_CC, lang->language, ll_CC_size);

  if (strlen(ll_CC) == 2)
  {
   /*
    * Map "ll" to primary/origin country locales to have the best
    * chance of finding a match...
    */

    if (!strcmp(ll_CC, "cs"))
      strlcpy(ll_CC, "cs_CZ", ll_CC_size);
    else if (!strcmp(ll_CC, "en"))
      strlcpy(ll_CC, "en_US", ll_CC_size);
    else if (!strcmp(ll_CC, "ja"))
      strlcpy(ll_CC, "ja_JP", ll_CC_size);
    else if (!strcmp(ll_CC, "sv"))
      strlcpy(ll_CC, "sv_SE", ll_CC_size);
    else if (!strcmp(ll_CC, "zh"))	/* Simplified Chinese */
      strlcpy(ll_CC, "zh_CN", ll_CC_size);
  }

  DEBUG_printf(("8ppd_ll_CC: lang->language=\"%s\", ll_CC=\"%s\"...",
                lang->language, ll_CC));
  return (lang);
}

void
_cupsSetError(ipp_status_t status,	/* I - IPP status code */
              const char   *message,	/* I - status-message value */
	      int          localize)	/* I - Localize the message? */
{
  _cups_globals_t	*cg;		/* Global data */


  if (!message && errno)
  {
    message  = strerror(errno);
    localize = 0;
  }

  cg             = _cupsGlobals();
  cg->last_error = status;

  if (cg->last_status_message)
  {
    _cupsStrFree(cg->last_status_message);

    cg->last_status_message = NULL;
  }

  if (message)
  {
    if (localize)
    {
     /*
      * Get the message catalog...
      */

      if (!cg->lang_default)
	cg->lang_default = cupsLangDefault();

      cg->last_status_message = _cupsStrAlloc(_cupsLangString(cg->lang_default,
                                                              message));
    }
    else
      cg->last_status_message = _cupsStrAlloc(message);
  }

  DEBUG_printf(("4_cupsSetError: last_error=%s, last_status_message=\"%s\"",
                ippErrorString(cg->last_error), cg->last_status_message));
}

int					/* O - Number of bytes written */
_cupsLangPuts(FILE       *fp,		/* I - File to write to */
              const char *message)	/* I - Message string to use */
{
  int		bytes;			/* Number of bytes formatted */
  char		output[8192];		/* Message buffer */
  _cups_globals_t *cg;			/* Global data */


 /*
  * Range check...
  */

  if (!fp || !message)
    return (-1);

  cg = _cupsGlobals();

  if (!cg->lang_default)
    cg->lang_default = cupsLangDefault();

 /*
  * Transcode to the destination charset...
  */

  bytes = cupsUTF8ToCharset(output,
			    (cups_utf8_t *)_cupsLangString(cg->lang_default,
							   message),
			    sizeof(output) - 4, cg->lang_default->encoding);
  bytes += cupsUTF8ToCharset(output + bytes, (cups_utf8_t *)"\n",
                             sizeof(output) - bytes,
			     cg->lang_default->encoding);

 /*
  * Write the string and return the number of bytes written...
  */

  if (bytes > 0)
    return ((int)fwrite(output, 1, bytes, fp));
  else
    return (bytes);
}

int					/* O - Exit status */
main(int  argc,				/* I - Number of command-line arguments */
     char *argv[])			/* I - Command-line arguments */
{
  int		i;			/* Looping var */
  char		*opt;			/* Option pointer */
  const char	*username;		/* Pointer to username */
  const char	*groupname;		/* Pointer to group name */
  int		op;			/* Operation (add, change, delete) */
  const char	*passwd;		/* Password string */
  FILE		*infile,		/* Input file */
		*outfile;		/* Output file */
  char		line[256],		/* Line from file */
		userline[17],		/* User from line */
		groupline[17],		/* Group from line */
		md5line[33],		/* MD5-sum from line */
		md5new[33];		/* New MD5 sum */
  char		passwdmd5[1024],	/* passwd.md5 file */
		passwdold[1024],	/* passwd.old file */
		passwdnew[1024];	/* passwd.tmp file */
  char		*newpass,		/* new password */
  		*oldpass;		/* old password */
  int		flag;			/* Password check flags... */
  int		fd;			/* Password file descriptor */
  int		error;			/* Write error */
  _cups_globals_t *cg = _cupsGlobals();	/* Global data */
  cups_lang_t	*lang;			/* Language info */
#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
  struct sigaction action;		/* Signal action */
#endif /* HAVE_SIGACTION && !HAVE_SIGSET*/


  _cupsSetLocale(argv);
  lang = cupsLangDefault();

 /*
  * Check to see if stdin, stdout, and stderr are still open...
  */

  if (fcntl(0, F_GETFD, &i) ||
      fcntl(1, F_GETFD, &i) ||
      fcntl(2, F_GETFD, &i))
  {
   /*
    * No, return exit status 2 and don't try to send any output since
    * someone is trying to bypass the security on the server.
    */

    return (2);
  }

 /*
  * Find the server directory...
  */

  snprintf(passwdmd5, sizeof(passwdmd5), "%s/passwd.md5", cg->cups_serverroot);
  snprintf(passwdold, sizeof(passwdold), "%s/passwd.old", cg->cups_serverroot);
  snprintf(passwdnew, sizeof(passwdnew), "%s/passwd.new", cg->cups_serverroot);

 /*
  * Find the default system group...
  */

  if (getgrnam(CUPS_DEFAULT_GROUP))
    groupname = CUPS_DEFAULT_GROUP;
  else
    groupname = "unknown";

  endgrent();

  username = NULL;
  op       = CHANGE;

 /*
  * Parse command-line options...
  */

  for (i = 1; i < argc; i ++)
    if (argv[i][0] == '-')
      for (opt = argv[i] + 1; *opt; opt ++)
        switch (*opt)
	{
	  case 'a' : /* Add */
	      op = ADD;
	      break;
	  case 'x' : /* Delete */
	      op = DELETE;
	      break;
	  case 'g' : /* Group */
	      i ++;
	      if (i >= argc)
	        usage(stderr);

              groupname = argv[i];
	      break;
	  case 'h' : /* Help */
	      usage(stdout);
	      break;
	  default : /* Bad option */
	      usage(stderr);
//.........这里部分代码省略.........

int					/* O - Exit status */
main(int  argc,				/* I - Number of command-line arguments (6 or 7) */
     char *argv[])			/* I - Command-line arguments */
{
  const char	*device_uri;		/* Device URI */
  char		scheme[255],		/* Scheme in URI */
		hostname[1024],		/* Hostname */
		username[255],		/* Username info */
		resource[1024],		/* Resource info (printer name) */
		*options,		/* Pointer to options */
		*name,			/* Name of option */
		*value,			/* Value of option */
		sep,			/* Separator character */
		*filename,		/* File to print */
		title[256];		/* Title string */
  int		port;			/* Port number */
  char		portname[256];		/* Port name (string) */
  http_addrlist_t *addrlist;		/* List of addresses for printer */
  int		snmp_enabled = 1;	/* Is SNMP enabled? */
  int		snmp_fd;		/* SNMP socket */
  int		fd;			/* Print file */
  int		status;			/* Status of LPD job */
  int		mode;			/* Print mode */
  int		banner;			/* Print banner page? */
  int		format;			/* Print format */
  int		order;			/* Order of control/data files */
  int		reserve;		/* Reserve priviledged port? */
  int		sanitize_title;		/* Sanitize title string? */
  int		manual_copies,		/* Do manual copies? */
		timeout,		/* Timeout */
		contimeout,		/* Connection timeout */
		copies;			/* Number of copies */
  ssize_t	bytes = 0;		/* Initial bytes read */
  char		buffer[16384];		/* Initial print buffer */
#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
  struct sigaction action;		/* Actions for POSIX signals */
#endif /* HAVE_SIGACTION && !HAVE_SIGSET */
  int		num_jobopts;		/* Number of job options */
  cups_option_t	*jobopts = NULL;	/* Job options */


 /*
  * Make sure status messages are not buffered...
  */

  setbuf(stderr, NULL);

 /*
  * Ignore SIGPIPE and catch SIGTERM signals...
  */

#ifdef HAVE_SIGSET
  sigset(SIGPIPE, SIG_IGN);
  sigset(SIGTERM, sigterm_handler);
#elif defined(HAVE_SIGACTION)
  memset(&action, 0, sizeof(action));
  action.sa_handler = SIG_IGN;
  sigaction(SIGPIPE, &action, NULL);

  sigemptyset(&action.sa_mask);
  sigaddset(&action.sa_mask, SIGTERM);
  action.sa_handler = sigterm_handler;
  sigaction(SIGTERM, &action, NULL);
#else
  signal(SIGPIPE, SIG_IGN);
  signal(SIGTERM, sigterm_handler);
#endif /* HAVE_SIGSET */

 /*
  * Check command-line...
  */

  if (argc == 1)
  {
    printf("network lpd \"Unknown\" \"%s\"\n",
           _cupsLangString(cupsLangDefault(), _("LPD/LPR Host or Printer")));
    return (CUPS_BACKEND_OK);
  }
  else if (argc < 6 || argc > 7)
  {
    _cupsLangPrintf(stderr,
                    _("Usage: %s job-id user title copies options [file]"),
                    argv[0]);
    return (CUPS_BACKEND_FAILED);
  }

  num_jobopts = cupsParseOptions(argv[5], 0, &jobopts);

 /*
  * Extract the hostname and printer name from the URI...
  */

  while ((device_uri = cupsBackendDeviceURI(argv)) == NULL)
  {
    _cupsLangPrintFilter(stderr, "INFO", _("Unable to locate printer."));
    sleep(10);

    if (getenv("CLASS") != NULL)
      return (CUPS_BACKEND_FAILED);
  }
//.........这里部分代码省略.........

static bool cups_cache_reload_async(int fd)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct pcap_cache *tmp_pcap_cache = NULL;
	http_t		*http = NULL;		/* HTTP connection to server */
	ipp_t		*request = NULL,	/* IPP Request */
			*response = NULL;	/* IPP Response */
	ipp_attribute_t	*attr;		/* Current attribute */
	cups_lang_t	*language = NULL;	/* Default language */
	char		*name,		/* printer-name attribute */
			*info;		/* printer-info attribute */
	static const char *requested[] =/* Requested attributes */
			{
			  "printer-name",
			  "printer-info"
			};
	bool ret = False;
	size_t size;

	DEBUG(5, ("reloading cups printcap cache\n"));

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

	request = ippNew();

	request->request.op.operation_id = CUPS_GET_PRINTERS;
	request->request.op.request_id   = 1;

	language = cupsLangDefault();

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

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

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

		if (attr == NULL)
        		break;

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

		name       = 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) {
				if (!pull_utf8_talloc(frame,
						&name,
						attr->values[0].string.text,
						&size)) {
					goto out;
				}
			}
//.........这里部分代码省略.........

//.........这里部分代码省略.........

	if ((http = httpConnect(iprint_server(), ippPort())) == NULL) {
		DEBUG(0,("Unable to connect to iPrint server %s - %s\n", 
			 iprint_server(), strerror(errno)));
		goto out;
	}

       /*
	* Generate the printer URI and the service URI that goes with it...
	*/

	slprintf(uri, sizeof(uri) - 1, "ipp://%s/ipp/%s", iprint_server(), printername);
	slprintf(serviceUri, sizeof(serviceUri) - 1, "ipp://%s/ipp/", iprint_server());

       /*
	* For Linux iPrint servers from OES SP1 on, the iPrint server
	* uses Unix time for job start times unless it detects the iPrint
	* client in an http User-Agent header.  (This was done to accomodate
	* CUPS broken behavior.  According to RFC 2911, section 4.3.14, job
	* start times are supposed to be relative to how long the printer has
	* been up.)  Since libcups doesn't allow us to set that header before
	* the request is sent, this ugly hack allows us to detect the server
	* version and decide how to interpret the job time.
	*/
	if (iprint_get_server_version(http, serviceUri) >=
	    NOVELL_SERVER_VERSION_OES_SP1)
		jobUseUnixTime = 1;

	request = ippNew();

	ippSetOperation(request, IPP_GET_PRINTER_ATTRIBUTES);
	ippSetRequestId(request, 2);

	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);

	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
	             "printer-uri", NULL, uri);

	ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
	              "requested-attributes",
	              (sizeof(pattrs) / sizeof(pattrs[0])),
	              NULL, pattrs);

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

	slprintf(httpPath, sizeof(httpPath) - 1, "/ipp/%s", printername);

	if ((response = cupsDoRequest(http, request, httpPath)) == NULL) {
		DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
			 ippErrorString(cupsLastError())));
		*q = queue;
		goto out;
	}

	if (ippGetStatusCode(response) >= IPP_OK_CONFLICT) {
		DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
			 ippErrorString(ippGetStatusCode(response))));
		*q = queue;

int					/* O - Exit status */
main(int  argc,				/* I - Number of command-line arguments */
     char *argv[])			/* I - Command-line arguments */
{
  int			i;		/* Looping var */
  int			errors = 0;	/* Number of errors */
  cups_lang_t		*language;	/* Message catalog */
  cups_lang_t		*language2;	/* Message catalog */
  struct lconv		*loc;		/* Locale data */
  char			buffer[1024];	/* String buffer */
  double		number;		/* Number */
  static const char * const tests[] =	/* Test strings */
  {
    "1",
    "-1",
    "3",
    "5.125"
  };


  _cupsSetLocale(argv);

  if (argc == 1)
  {
    language  = cupsLangDefault();
    language2 = cupsLangDefault();
  }
  else
  {
    language  = cupsLangGet(argv[1]);
    language2 = cupsLangGet(argv[1]);
  }

  if (language != language2)
  {
    errors ++;

    puts("**** ERROR: Language cache did not work! ****");
    puts("First result from cupsLangGet:");
  }

  printf("Language = \"%s\"\n", language->language);
  printf("Encoding = \"%s\"\n", _cupsEncodingName(language->encoding));
  printf("No       = \"%s\"\n", _cupsLangString(language, "No"));
  printf("Yes      = \"%s\"\n", _cupsLangString(language, "Yes"));

  if (language != language2)
  {
    puts("Second result from cupsLangGet:");

    printf("Language = \"%s\"\n", language2->language);
    printf("Encoding = \"%s\"\n", _cupsEncodingName(language2->encoding));
    printf("No       = \"%s\"\n", _cupsLangString(language2, "No"));
    printf("Yes      = \"%s\"\n", _cupsLangString(language2, "Yes"));
  }

  loc = localeconv();

  for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i ++)
  {
    number = _cupsStrScand(tests[i], NULL, loc);

    printf("_cupsStrScand(\"%s\") number=%f\n", tests[i], number);

    _cupsStrFormatd(buffer, buffer + sizeof(buffer), number, loc);

    printf("_cupsStrFormatd(%f) buffer=\"%s\"\n", number, buffer);

    if (strcmp(buffer, tests[i]))
    {
      errors ++;
      puts("**** ERROR: Bad formatted number! ****");
    }
  }

  return (errors > 0);
}

static int iprint_job_submit(int snum, struct printjob *pjob,
			     enum printing_types printing_type,
			     char *lpq_cmd)
{
	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;		/* Current attribute */
	cups_lang_t	*language = NULL;	/* Default language */
	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */

	DEBUG(5,("iprint_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));

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

	cupsSetPasswordCB(iprint_passwd_cb);

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

	if ((http = httpConnect(iprint_server(), ippPort())) == NULL) {
		DEBUG(0,("Unable to connect to iPrint server %s - %s\n", 
			 iprint_server(), strerror(errno)));
		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);

	slprintf(uri, sizeof(uri) - 1, "ipp://%s/ipp/%s", iprint_server(),
		 lp_printername(snum));

	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
	             "printer-uri", NULL, uri);

	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
	             NULL, pjob->user);

	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
	             "job-originating-host-name", NULL,
		     pjob->clientmachine);

	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
	             pjob->jobname);

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

	slprintf(uri, sizeof(uri) - 1, "/ipp/%s", lp_printername(snum));

	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(snum),
			         ippErrorString(cupsLastError())));
		} else {
			ret = 0;
		}
	} else {
		DEBUG(0,("Unable to print file to `%s' - %s\n",
			 lp_printername(snum),
			 ippErrorString(cupsLastError())));
	}

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

	if ( ret == 0 ) {

		attr = ippFindAttribute(response, "job-id", IPP_TAG_INTEGER);
		if (attr != NULL && ippGetGroupTag(attr) == IPP_TAG_JOB)
		{
			pjob->sysjob = ippGetInteger(attr, 0);
//.........这里部分代码省略.........

static int				/* O - 0 on success, 1 on error */
exec_filters(mime_type_t   *srctype,	/* I - Source type */
             cups_array_t  *filters,	/* I - Array of filters to run */
             const char    *infile,	/* I - File to filter */
	     const char    *outfile,	/* I - File to create */
	     const char    *ppdfile,	/* I - PPD file, if any */
	     const char    *printer,	/* I - Printer name */
	     const char    *user,	/* I - Username */
	     const char    *title,	/* I - Job title */
             int           num_options,	/* I - Number of filter options */
	     cups_option_t *options)	/* I - Filter options */
{
  int		i;			/* Looping var */
  const char	*argv[8],		/* Command-line arguments */
		*envp[17],		/* Environment variables */
		*temp;			/* Temporary string */
  char		*optstr,		/* Filter options */
		content_type[1024],	/* CONTENT_TYPE */
		cups_datadir[1024],	/* CUPS_DATADIR */
		cups_fontpath[1024],	/* CUPS_FONTPATH */
		cups_serverbin[1024],	/* CUPS_SERVERBIN */
		cups_serverroot[1024],	/* CUPS_SERVERROOT */
		final_content_type[1024] = "",
					/* FINAL_CONTENT_TYPE */
		lang[1024],		/* LANG */
		path[1024],		/* PATH */
		ppd[1024],		/* PPD */
		printer_info[255],	/* PRINTER_INFO env variable */
		printer_location[255],	/* PRINTER_LOCATION env variable */
		printer_name[255],	/* PRINTER env variable */
		rip_max_cache[1024],	/* RIP_MAX_CACHE */
		userenv[1024],		/* USER */
		program[1024];		/* Program to run */
  mime_filter_t	*filter,		/* Current filter */
		*next;			/* Next filter */
  int		current,		/* Current filter */
		filterfds[2][2],	/* Pipes for filters */
		pid,			/* Process ID of filter */
		status,			/* Exit status */
		retval;			/* Return value */
  cups_array_t	*pids;			/* Executed filters array */
  mime_filter_t	key;			/* Search key for filters */
  cups_lang_t	*language;		/* Current language */
  cups_dest_t	*dest;			/* Destination information */


 /*
  * Figure out the final content type...
  */

  for (filter = (mime_filter_t *)cupsArrayLast(filters);
       filter && filter->dst;
       filter = (mime_filter_t *)cupsArrayPrev(filters))
    if (strcmp(filter->dst->super, "printer"))
      break;

  if (filter && filter->dst)
  {
    const char *ptr;			/* Pointer in type name */

    if ((ptr = strchr(filter->dst->type, '/')) != NULL)
      snprintf(final_content_type, sizeof(final_content_type),
	       "FINAL_CONTENT_TYPE=%s", ptr + 1);
    else
      snprintf(final_content_type, sizeof(final_content_type),
	       "FINAL_CONTENT_TYPE=%s/%s", filter->dst->super,
	       filter->dst->type);
  }

 /*
  * Remove NULL ("-") filters...
  */

  for (filter = (mime_filter_t *)cupsArrayFirst(filters);
       filter;
       filter = (mime_filter_t *)cupsArrayNext(filters))
    if (!strcmp(filter->filter, "-"))
      cupsArrayRemove(filters, filter);

 /*
  * Setup the filter environment and command-line...
  */

  optstr = escape_options(num_options, options);

  snprintf(content_type, sizeof(content_type), "CONTENT_TYPE=%s/%s",
           srctype->super, srctype->type);
  snprintf(cups_datadir, sizeof(cups_datadir), "CUPS_DATADIR=%s", DataDir);
  snprintf(cups_fontpath, sizeof(cups_fontpath), "CUPS_FONTPATH=%s", FontPath);
  snprintf(cups_serverbin, sizeof(cups_serverbin), "CUPS_SERVERBIN=%s",
           ServerBin);
  snprintf(cups_serverroot, sizeof(cups_serverroot), "CUPS_SERVERROOT=%s",
           ServerRoot);
  language = cupsLangDefault();
  snprintf(lang, sizeof(lang), "LANG=%s.UTF8", language->language);
  snprintf(path, sizeof(path), "PATH=%s", Path);
  if (ppdfile)
    snprintf(ppd, sizeof(ppd), "PPD=%s", ppdfile);
  else if ((temp = getenv("PPD")) != NULL)
    snprintf(ppd, sizeof(ppd), "PPD=%s", temp);
//.........这里部分代码省略.........

bool iprint_cache_reload(void)
{
	http_t		*http = NULL;		/* HTTP connection to server */
	ipp_t		*request = NULL,	/* IPP Request */
			*response = NULL;	/* IPP Response */
	ipp_attribute_t	*attr;			/* Current attribute */
	cups_lang_t	*language = NULL;	/* Default language */
	int		i;
	bool ret = False;

	DEBUG(5, ("reloading iprint printcap cache\n"));

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

	cupsSetPasswordCB(iprint_passwd_cb);

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

	if ((http = httpConnect(iprint_server(), ippPort())) == NULL) {
		DEBUG(0,("Unable to connect to iPrint server %s - %s\n", 
			 iprint_server(), strerror(errno)));
		goto out;
	}

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

	request = ippNew();

	ippSetOperation(request, (ipp_op_t)OPERATION_NOVELL_LIST_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);

	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
	             "ipp-server", NULL, "ippSrvr");

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

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

	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...
		*/

		while (attr != NULL && ippGetGroupTag(attr) == IPP_TAG_PRINTER)
		{
			if (strcmp(ippGetName(attr), "printer-name") == 0 &&
			    (ippGetValueTag(attr) == IPP_TAG_URI ||
			     ippGetValueTag(attr) == IPP_TAG_NAME ||
			     ippGetValueTag(attr) == IPP_TAG_TEXT ||
			     ippGetValueTag(attr) == IPP_TAG_NAMELANG ||
			     ippGetValueTag(attr) == IPP_TAG_TEXTLANG))
			{
				for (i = 0; i<ippGetCount(attr); i++)
				{
					char *url = ippGetString(attr, i, NULL);
					if (!url || !strlen(url))
						continue;
					iprint_cache_add_printer(http, i+2, url);
				}
			}
			attr = ippNextAttribute(response);
		}
	}

	ret = True;

 out:
//.........这里部分代码省略.........

GtkCupsRequest *
gtk_cups_request_new_with_username (http_t             *connection,
                                    GtkCupsRequestType  req_type, 
                                    gint                operation_id,
                                    GIOChannel         *data_io,
                                    const char         *server,
                                    const char         *resource,
                                    const char         *username)
{
  GtkCupsRequest *request;
  cups_lang_t *language;
  
  request = g_new0 (GtkCupsRequest, 1);
  request->result = g_new0 (GtkCupsResult, 1);

  request->result->error_msg = NULL;
  request->result->ipp_response = NULL;

  request->result->is_error = FALSE;
  request->result->is_ipp_response = FALSE;

  request->type = req_type;
  request->state = GTK_CUPS_REQUEST_START;

  request->password_state = GTK_CUPS_PASSWORD_NONE;

   if (server)
    request->server = g_strdup (server);
  else
    request->server = g_strdup (cupsServer ());


  if (resource)
    request->resource = g_strdup (resource);
  else
    request->resource = g_strdup ("/");
 
  if (connection != NULL)
    {
      request->http = connection;
      request->own_http = FALSE;
    }
  else
    {
      request->http = NULL;
      request->http = httpConnectEncrypt (request->server, 
                                          ippPort (), 
                                          cupsEncryption ());

      if (request->http)
        httpBlocking (request->http, 0);
        
      request->own_http = TRUE;
    }

  request->last_status = HTTP_CONTINUE;

  request->attempts = 0;
  request->data_io = data_io;

  request->ipp_request = ippNew ();
  ippSetOperation (request->ipp_request, operation_id);
  ippSetRequestId (request->ipp_request, 1);

  language = cupsLangDefault ();

  gtk_cups_request_ipp_add_string (request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
                                   "attributes-charset", 
                                   NULL, "utf-8");
	
  gtk_cups_request_ipp_add_string (request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
                                   "attributes-natural-language", 
                                   NULL, language->language);

  if (username != NULL)
    gtk_cups_request_ipp_add_string (request, IPP_TAG_OPERATION, IPP_TAG_NAME,
                                     "requesting-user-name",
                                     NULL, username);
  else
    gtk_cups_request_ipp_add_string (request, IPP_TAG_OPERATION, IPP_TAG_NAME,
                                     "requesting-user-name",
                                     NULL, cupsUser ());

  request->auth_info_required = NULL;
  request->auth_info = NULL;
  request->need_auth_info = FALSE;

  cupsLangFree (language);

  return request;
}

static http_status_t			/* O - Status of request */
get_cupsd_conf(
    http_t          *http,		/* I - Connection to server */
    _cups_globals_t *cg,		/* I - Global data */
    time_t          last_update,	/* I - Last update time for file */
    char            *name,		/* I - Filename buffer */
    size_t          namesize,		/* I - Size of filename buffer */
    int             *remote)		/* O - Remote file? */
{
  int		fd;			/* Temporary file descriptor */
#ifndef _WIN32
  struct stat	info;			/* cupsd.conf file information */
#endif /* _WIN32 */
  http_status_t	status;			/* Status of getting cupsd.conf */
  char		host[HTTP_MAX_HOST];	/* Hostname for connection */


 /*
  * See if we already have the data we need...
  */

  httpGetHostname(http, host, sizeof(host));

  if (_cups_strcasecmp(cg->cupsd_hostname, host))
    invalidate_cupsd_cache(cg);

  snprintf(name, namesize, "%s/cupsd.conf", cg->cups_serverroot);
  *remote = 0;

#ifndef _WIN32
  if (!_cups_strcasecmp(host, "localhost") && !access(name, R_OK))
  {
   /*
    * Read the local file rather than using HTTP...
    */

    if (stat(name, &info))
    {
      char	message[1024];		/* Message string */


      snprintf(message, sizeof(message),
               _cupsLangString(cupsLangDefault(), _("stat of %s failed: %s")),
               name, strerror(errno));
      _cupsSetError(IPP_STATUS_ERROR_INTERNAL, message, 0);

      *name = '\0';

      return (HTTP_STATUS_SERVER_ERROR);
    }
    else if (last_update && info.st_mtime <= last_update)
      status = HTTP_STATUS_NOT_MODIFIED;
    else
      status = HTTP_STATUS_OK;
  }
  else
#endif /* !_WIN32 */
  {
   /*
    * Read cupsd.conf via a HTTP GET request...
    */

    if ((fd = cupsTempFd(name, (int)namesize)) < 0)
    {
      *name = '\0';

      _cupsSetError(IPP_STATUS_ERROR_INTERNAL, NULL, 0);

      invalidate_cupsd_cache(cg);

      return (HTTP_STATUS_SERVER_ERROR);
    }

    *remote = 1;

    httpClearFields(http);

    if (last_update)
      httpSetField(http, HTTP_FIELD_IF_MODIFIED_SINCE,
                   httpGetDateString(last_update));

    status = cupsGetFd(http, "/admin/conf/cupsd.conf", fd);

    close(fd);

    if (status != HTTP_STATUS_OK)
    {
      unlink(name);
      *name = '\0';
    }
  }

  return (status);
}

//.........这里部分代码省略.........

    http = cg->http;
  }

  if (!http || !num_settings || !settings)
  {
    _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);

    if (num_settings)
      *num_settings = 0;

    if (settings)
      *settings = NULL;

    return (0);
  }

  *num_settings = 0;
  *settings     = NULL;

 /*
  * Get the cupsd.conf file...
  */

  if ((status = get_cupsd_conf(http, cg, cg->cupsd_update, cupsdconf,
                               sizeof(cupsdconf), &remote)) == HTTP_STATUS_OK)
  {
    if ((cupsd = cupsFileOpen(cupsdconf, "r")) == NULL)
    {
      char	message[1024];		/* Message string */


      snprintf(message, sizeof(message),
               _cupsLangString(cupsLangDefault(), _("Open of %s failed: %s")),
               cupsdconf, strerror(errno));
      _cupsSetError(IPP_STATUS_ERROR_INTERNAL, message, 0);
    }
  }
  else
    cupsd = NULL;

  if (cupsd)
  {
   /*
    * Read the file, keeping track of what settings are enabled...
    */

    int		remote_access = 0,	/* Remote access allowed? */
		remote_admin = 0,	/* Remote administration allowed? */
		remote_any = 0,		/* Remote access from anywhere allowed? */
		browsing = 1,		/* Browsing enabled? */
		cancel_policy = 1,	/* Cancel-job policy set? */
		debug_logging = 0;	/* LogLevel debug set? */
    int		linenum = 0,		/* Line number in file */
		in_location = 0,	/* In a location section? */
		in_policy = 0,		/* In a policy section? */
		in_cancel_job = 0,	/* In a cancel-job section? */
		in_admin_location = 0;	/* In the /admin location? */


    invalidate_cupsd_cache(cg);

    cg->cupsd_update = time(NULL);
    httpGetHostname(http, cg->cupsd_hostname, sizeof(cg->cupsd_hostname));

    wh