int					/* O - -1 on error, 0 on success */
httpSaveCredentials(
    const char   *path,			/* I - Keychain/PKCS#12 path */
    cups_array_t *credentials,		/* I - Credentials */
    const char   *common_name)		/* I - Common name for credentials */
{
  cups_file_t		*fp;		/* Certificate file */
  char			filename[1024],	/* filename.crt */
			nfilename[1024],/* filename.crt.N */
			temp[1024],	/* Temporary string */
			line[256];	/* Base64-encoded line */
  const unsigned char	*ptr;		/* Pointer into certificate */
  ssize_t		remaining;	/* Bytes left */
  http_credential_t	*cred;		/* Current credential */


  if (!credentials || !common_name)
    return (-1);

  if (!path)
    path = http_gnutls_default_path(temp, sizeof(temp));
  if (!path)
    return (-1);

  http_gnutls_make_path(filename, sizeof(filename), path, common_name, "crt");
  snprintf(nfilename, sizeof(nfilename), "%s.N", filename);

  if ((fp = cupsFileOpen(nfilename, "w")) == NULL)
    return (-1);

  fchmod(cupsFileNumber(fp), 0600);

  for (cred = (http_credential_t *)cupsArrayFirst(credentials);
       cred;
       cred = (http_credential_t *)cupsArrayNext(credentials))
  {
    cupsFilePuts(fp, "-----BEGIN CERTIFICATE-----\n");
    for (ptr = cred->data, remaining = (ssize_t)cred->datalen; remaining > 0; remaining -= 45, ptr += 45)
    {
      httpEncode64_2(line, sizeof(line), (char *)ptr, remaining > 45 ? 45 : remaining);
      cupsFilePrintf(fp, "%s\n", line);
    }
    cupsFilePuts(fp, "-----END CERTIFICATE-----\n");
  }

  cupsFileClose(fp);

  return (rename(nfilename, filename));
}

void
cupsdInitCerts(void)
{
#ifndef HAVE_ARC4RANDOM
  cups_file_t	*fp;			/* /dev/random file */


 /*
  * Initialize the random number generator using the random device or
  * the current time, as available...
  */

  if ((fp = cupsFileOpen("/dev/urandom", "rb")) == NULL)
  {
    struct timeval tod;			/* Time of day */

   /*
    * Get the time in usecs and use it as the initial seed...
    */

    gettimeofday(&tod, NULL);

    CUPS_SRAND((unsigned)(tod.tv_sec + tod.tv_usec));
  }
  else
  {
    unsigned	seed;			/* Seed for random number generator */

   /*
    * Read 4 random characters from the random device and use
    * them as the seed...
    */

    seed = cupsFileGetChar(fp);
    seed = (seed << 8) | cupsFileGetChar(fp);
    seed = (seed << 8) | cupsFileGetChar(fp);
    CUPS_SRAND((seed << 8) | cupsFileGetChar(fp));

    cupsFileClose(fp);
  }
#endif /* !HAVE_ARC4RANDOM */

 /*
  * Create a root certificate and return...
  */

  if (!RunUser)
    cupsdAddCert(0, "root", cupsdDefaultAuthType());
}

int					/* O - 1 on success, 0 on error */
save_messages(cups_array_t *cat,	/* I - Message catalog */
              const char   *filename)	/* I - File to save to */
{
  _cups_message_t *m;			/* Current message */
  cups_file_t	*fp;			/* File pointer */


 /*
  * Open the message catalog...
  */

  if ((fp = cupsFileOpen(filename, "w")) == NULL)
    return (0);

 /*
  * Save the messages to a file...
  */

  for (m = (_cups_message_t *)cupsArrayFirst(cat);
       m;
       m = (_cups_message_t *)cupsArrayNext(cat))
  {
    if (cupsFilePuts(fp, "msgid \"") < 0)
      break;

    if (!write_string(fp, m->id))
      break;

    if (cupsFilePuts(fp, "\"\nmsgstr \"") < 0)
      break;

    if (m->str)
    {
      if (!write_string(fp, m->str))
	break;
    }

    if (cupsFilePuts(fp, "\"\n") < 0)
      break;
  }

  cupsFileClose(fp);

  return (!m);
}

static int				/* O - 1 for YES or AUTOMATIC, 0 for NO */
get_hostconfig(const char *name)	/* I - Name of service */
{
  cups_file_t	*fp;			/* Hostconfig file */
  char		line[1024],		/* Line from file */
		*ptr;			/* Pointer to value */
  int		state = 1;		/* State of service */


 /*
  * Try opening the /etc/hostconfig file; if we can't open it, assume that
  * the service is enabled/auto.
  */

  if ((fp = cupsFileOpen("/etc/hostconfig", "r")) != NULL)
  {
   /*
    * Read lines from the file until we find the service...
    */

    while (cupsFileGets(fp, line, sizeof(line)))
    {
      if (line[0] == '#' || (ptr = strchr(line, '=')) == NULL)
        continue;

      *ptr++ = '\0';

      if (!_cups_strcasecmp(line, name))
      {
       /*
        * Found the service, see if it is set to "-NO-"...
	*/

	if (!_cups_strncasecmp(ptr, "-NO-", 4))
	  state = 0;
        break;
      }
    }

    cupsFileClose(fp);
  }

  return (state);
}

static void
write_info(const char *path,		/* I - File to write */
           const char *revision)	/* I - Subversion revision number */
{
  cups_file_t	*fp;			/* File */


  if ((fp = cupsFileOpen(path, "w")) == NULL)
  {
    fprintf(stderr, "makedocset: Unable to create %s: %s\n", path,
            strerror(errno));
    exit(1);
  }

  cupsFilePrintf(fp, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
		     "<!DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" "
		     "\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n"
		     "<plist version=\"1.0\">\n"
		     "<dict>\n"
		     "\t<key>CFBundleIdentifier</key>\n"
		     "\t<string>org.cups.docset</string>\n"
		     "\t<key>CFBundleName</key>\n"
		     "\t<string>CUPS Documentation</string>\n"
		     "\t<key>CFBundleVersion</key>\n"
		     "\t<string>%d.%d.%s</string>\n"
		     "\t<key>CFBundleShortVersionString</key>\n"
		     "\t<string>%d.%d.%d</string>\n"
		     "\t<key>DocSetFeedName</key>\n"
		     "\t<string>cups.org</string>\n"
		     "\t<key>DocSetFeedURL</key>\n"
		     "\t<string>http://www.cups.org/org.cups.docset.atom"
		     "</string>\n"
		     "\t<key>DocSetPublisherIdentifier</key>\n"
		     "\t<string>org.cups</string>\n"
		     "\t<key>DocSetPublisherName</key>\n"
		     "\t<string>CUPS</string>\n"
		     "</dict>\n"
		     "</plist>\n",
		     CUPS_VERSION_MAJOR, CUPS_VERSION_MINOR, revision,
		     CUPS_VERSION_MAJOR, CUPS_VERSION_MINOR, CUPS_VERSION_PATCH);

  cupsFileClose(fp);
}

const char *				/* O - Default community name */
_cupsSNMPDefaultCommunity(void)
{
  cups_file_t	*fp;			/* snmp.conf file */
  char		line[1024],		/* Line from file */
		*value;			/* Value from file */
  int		linenum;		/* Line number in file */
  _cups_globals_t *cg = _cupsGlobals();	/* Global data */


  DEBUG_puts("4_cupsSNMPDefaultCommunity()");

  if (!cg->snmp_community[0])
  {
    strlcpy(cg->snmp_community, "public", sizeof(cg->snmp_community));

    snprintf(line, sizeof(line), "%s/snmp.conf", cg->cups_serverroot);
    if ((fp = cupsFileOpen(line, "r")) != NULL)
    {
      linenum = 0;
      while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum))
	if (!_cups_strcasecmp(line, "Community") && value)
	{
	  strlcpy(cg->snmp_community, value, sizeof(cg->snmp_community));
	  break;
	}

      cupsFileClose(fp);
    }
  }

  DEBUG_printf(("5_cupsSNMPDefaultCommunity: Returning \"%s\"",
                cg->snmp_community));

  return (cg->snmp_community);
}

static int				/* O - 0 on success, 1 on failure */
check_file(const char *filename)	/* I - File to read from */
{
  int		i;			/* Looping var */
  cups_file_t	*fp;			/* File */
  char		line[1024];		/* Line from file */
  int		ch;			/* Current character */
  size_t	bytes;			/* Length of line */
  int		status;			/* Status of test */
  int		linenum;		/* Line number */
  int		binary;			/* File contains binary data? */
  float		version;		/* DSC version */
  int		lbrt[4];		/* Bounding box */
  char		page_label[256];	/* Page label string */
  int		page_number;		/* Page number */
  int		last_page_number;	/* Last page number seen */
  int		level;			/* Embedded document level */
  int		saw_bounding_box,	/* %%BoundingBox seen? */
		saw_pages,		/* %%Pages seen? */
		saw_end_comments,	/* %%EndComments seen? */
		saw_begin_prolog,	/* %%BeginProlog seen? */
		saw_end_prolog,		/* %%EndProlog seen? */
		saw_begin_setup,	/* %%BeginSetup seen? */
		saw_end_setup,		/* %%EndSetup seen? */
		saw_page,		/* %%Page seen? */
		saw_trailer,		/* %%Trailer seen? */
		saw_long_line;		/* Saw long lines? */


 /*
  * Open the file...
  */

  if (!strcmp(filename, "(stdin)"))
    fp = cupsFileStdin();
  else
    fp = cupsFileOpen(filename, "r");

  if (!fp)
  {
    perror(filename);
    return (1);
  }

 /*
  * Scan the file...
  */

  binary           = 0;
  last_page_number = 0;
  level            = 0;
  linenum          = 0;
  saw_begin_prolog = 0;
  saw_begin_setup  = 0;
  saw_bounding_box = 0;
  saw_end_comments = 0;
  saw_end_prolog   = 0;
  saw_end_setup    = 0;
  saw_long_line    = 0;
  saw_page         = 0;
  saw_pages        = 0;
  saw_trailer      = 0;
  status           = 0;
  version          = 0.0f;

  /* TODO: Fixme */
  printf("%s: ", filename);
  fflush(stdout);

  while ((bytes = cupsFileGetLine(fp, line, sizeof(line))) > 0)
  {
    linenum ++;

    if (bytes > 255)
    {
      if (!saw_long_line)
      {
	if (!status)
          _cupsLangPuts(stdout, _("FAIL"));

	status ++;
	_cupsLangPrintf(stdout,
                	_("    Line %d is longer than 255 characters (%d).\n"
		          "        REF: Page 25, Line Length"),
			linenum, (int)bytes);
      }

      saw_long_line ++;
    }

    if (linenum == 1)
    {
      if (strncmp(line, "%!PS-Adobe-", 11))
      {
	if (!status)
          _cupsLangPuts(stdout, _("FAIL"));

	_cupsLangPuts(stdout,
	              _("    Missing %!PS-Adobe-3.0 on first line.\n"
		        "        REF: Page 17, 3.1 Conforming Documents"));
//.........这里部分代码省略.........

cups_array_t *				/* O - New message array */
_cupsMessageLoad(const char *filename,	/* I - Message catalog to load */
                 int        unquote)	/* I - Unescape \foo in strings? */
{
  cups_file_t		*fp;		/* Message file */
  cups_array_t		*a;		/* Message array */
  _cups_message_t	*m;		/* Current message */
  char			s[4096],	/* String buffer */
			*ptr,		/* Pointer into buffer */
			*temp;		/* New string */
  size_t		length,		/* Length of combined strings */
			ptrlen;		/* Length of string */


  DEBUG_printf(("4_cupsMessageLoad(filename=\"%s\")", filename));

 /*
  * Create an array to hold the messages...
  */

  if ((a = _cupsMessageNew(NULL)) == NULL)
  {
    DEBUG_puts("5_cupsMessageLoad: Unable to allocate array!");
    return (NULL);
  }

 /*
  * Open the message catalog file...
  */

  if ((fp = cupsFileOpen(filename, "r")) == NULL)
  {
    DEBUG_printf(("5_cupsMessageLoad: Unable to open file: %s",
                  strerror(errno)));
    return (a);
  }

 /*
  * Read messages from the catalog file until EOF...
  *
  * The format is the GNU gettext .po format, which is fairly simple:
  *
  *     msgid "some text"
  *     msgstr "localized text"
  *
  * The ID and localized text can span multiple lines using the form:
  *
  *     msgid ""
  *     "some long text"
  *     msgstr ""
  *     "localized text spanning "
  *     "multiple lines"
  */

  m = NULL;

  while (cupsFileGets(fp, s, sizeof(s)) != NULL)
  {
   /*
    * Skip blank and comment lines...
    */

    if (s[0] == '#' || !s[0])
      continue;

   /*
    * Strip the trailing quote...
    */

    if ((ptr = strrchr(s, '\"')) == NULL)
      continue;

    *ptr = '\0';

   /*
    * Find start of value...
    */

    if ((ptr = strchr(s, '\"')) == NULL)
      continue;

    ptr ++;

   /*
    * Unquote the text...
    */

    if (unquote)
      cups_unquote(ptr, ptr);

   /*
    * Create or add to a message...
    */

    if (!strncmp(s, "msgid", 5))
    {
     /*
      * Add previous message as needed...
      */

//.........这里部分代码省略.........

//.........这里部分代码省略.........
  sigaddset(&action.sa_mask, SIGTERM);
  sigaddset(&action.sa_mask, SIGCHLD);
  action.sa_handler = sigchld_handler;
  sigaction(SIGCHLD, &action, NULL);

  sigemptyset(&action.sa_mask);
  sigaddset(&action.sa_mask, SIGHUP);
  action.sa_handler = sighup_handler;
  sigaction(SIGHUP, &action, NULL);

  sigemptyset(&action.sa_mask);
  action.sa_handler = SIG_IGN;
  sigaction(SIGPIPE, &action, NULL);

  sigemptyset(&action.sa_mask);
  sigaddset(&action.sa_mask, SIGTERM);
  sigaddset(&action.sa_mask, SIGCHLD);
  action.sa_handler = sigterm_handler;
  sigaction(SIGTERM, &action, NULL);
#else
  signal(SIGCLD, sigchld_handler);	/* No, SIGCLD isn't a typo... */
  signal(SIGHUP, sighup_handler);
  signal(SIGPIPE, SIG_IGN);
  signal(SIGTERM, sigterm_handler);
#endif /* HAVE_SIGSET */

#ifdef __sgi
 /*
  * Try to create a fake lpsched lock file if one is not already there.
  * Some Adobe applications need it under IRIX in order to enable
  * printing...
  */

  if ((fp = cupsFileOpen("/var/spool/lp/SCHEDLOCK", "w")) == NULL)
  {
    syslog(LOG_LPR, "Unable to create fake lpsched lock file "
                    "\"/var/spool/lp/SCHEDLOCK\"\' - %s!",
           strerror(errno));
  }
  else
  {
    fchmod(cupsFileNumber(fp), 0644);
    fchown(cupsFileNumber(fp), User, Group);

    cupsFileClose(fp);
  }
#endif /* __sgi */

 /*
  * Initialize authentication certificates...
  */

  cupsdInitCerts();

 /*
  * If we are running in the background, signal the parent process that
  * we are up and running...
  */

  if (!fg || run_as_child)
  {
   /*
    * Send a signal to the parent process, but only if the parent is
    * not PID 1 (init).  This avoids accidentally shutting down the
    * system on OpenBSD if you CTRL-C the server before it is up...
    */

static void
update_lpd(int onoff)			/* - 1 = turn on, 0 = turn off */
{
  if (!LPDConfigFile)
    return;

#ifdef __APPLE__
 /*
  * Allow /etc/hostconfig CUPS_LPD service setting to override cupsd.conf
  * setting for backwards-compatibility.
  */

  if (onoff && !get_hostconfig("CUPS_LPD"))
    onoff = 0;
#endif /* __APPLE__ */

  if (!strncmp(LPDConfigFile, "xinetd:///", 10))
  {
   /*
    * Enable/disable LPD via the xinetd.d config file for cups-lpd...
    */

    char	newfile[1024];		/* New cups-lpd.N file */
    cups_file_t	*ofp,			/* Original file pointer */
		*nfp;			/* New file pointer */
    char	line[1024];		/* Line from file */


    snprintf(newfile, sizeof(newfile), "%s.N", LPDConfigFile + 9);

    if ((ofp = cupsFileOpen(LPDConfigFile + 9, "r")) == NULL)
    {
      cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open \"%s\" - %s",
                      LPDConfigFile + 9, strerror(errno));
      return;
    }

    if ((nfp = cupsFileOpen(newfile, "w")) == NULL)
    {
      cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create \"%s\" - %s",
                      newfile, strerror(errno));
      cupsFileClose(ofp);
      return;
    }

   /*
    * Copy all of the lines from the cups-lpd file...
    */

    while (cupsFileGets(ofp, line, sizeof(line)))
    {
      if (line[0] == '{')
      {
        cupsFilePrintf(nfp, "%s\n", line);
        snprintf(line, sizeof(line), "\tdisable = %s",
	         onoff ? "no" : "yes");
      }
      else if (!strstr(line, "disable ="))
        cupsFilePrintf(nfp, "%s\n", line);
    }

    cupsFileClose(nfp);
    cupsFileClose(ofp);
    rename(newfile, LPDConfigFile + 9);
  }
#ifdef __APPLE__
  else if (!strncmp(LPDConfigFile, "launchd:///", 11))
  {
   /*
    * Enable/disable LPD via the launchctl command...
    */

    char	*argv[5],		/* Arguments for command */
		*envp[MAX_ENV];		/* Environment for command */
    int		pid;			/* Process ID */


    cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0])));
    argv[0] = (char *)"launchctl";
    argv[1] = (char *)(onoff ? "load" : "unload");
    argv[2] = (char *)"-w";
    argv[3] = LPDConfigFile + 10;
    argv[4] = NULL;

    cupsdStartProcess("/bin/launchctl", argv, envp, -1, -1, -1, -1, -1, 1,
                      NULL, NULL, &pid);
  }
#endif /* __APPLE__ */
  else
    cupsdLogMessage(CUPSD_LOG_INFO, "Unknown LPDConfigFile scheme!");
}

static void
update_smb(int onoff)			/* I - 1 = turn on, 0 = turn off */
{
  if (!SMBConfigFile)
    return;

  if (!strncmp(SMBConfigFile, "samba:///", 9))
  {
   /*
    * Enable/disable SMB via the specified smb.conf config file...
    */

    char	newfile[1024];		/* New smb.conf.N file */
    cups_file_t	*ofp,			/* Original file pointer */
		*nfp;			/* New file pointer */
    char	line[1024];		/* Line from file */
    int		in_printers;		/* In [printers] section? */


    snprintf(newfile, sizeof(newfile), "%s.N", SMBConfigFile + 8);

    if ((ofp = cupsFileOpen(SMBConfigFile + 8, "r")) == NULL)
    {
      cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open \"%s\" - %s",
                      SMBConfigFile + 8, strerror(errno));
      return;
    }

    if ((nfp = cupsFileOpen(newfile, "w")) == NULL)
    {
      cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create \"%s\" - %s",
                      newfile, strerror(errno));
      cupsFileClose(ofp);
      return;
    }

   /*
    * Copy all of the lines from the smb.conf file...
    */

    in_printers = 0;

    while (cupsFileGets(ofp, line, sizeof(line)))
    {
      if (in_printers && strstr(line, "printable ="))
        snprintf(line, sizeof(line), "    printable = %s",
	         onoff ? "yes" : "no");

      cupsFilePrintf(nfp, "%s\n", line);

      if (line[0] == '[')
        in_printers = !strcmp(line, "[printers]");
    }

    cupsFileClose(nfp);
    cupsFileClose(ofp);
    rename(newfile, SMBConfigFile + 8);
  }
  else
    cupsdLogMessage(CUPSD_LOG_INFO, "Unknown SMBConfigFile scheme!");
}

//.........这里部分代码省略.........

    i ++;

    if (helpfile && !strcmp(helpfile, n->filename))
    {
      help_node_t	*nn;		/* Pointer to sub-node */


      cupsArraySave(hi->sorted);

      for (nn = (help_node_t *)cupsArrayFirst(hi->sorted);
           nn;
	   nn = (help_node_t *)cupsArrayNext(hi->sorted))
        if (nn->anchor && !strcmp(helpfile, nn->filename))
	{
	 /*
	  * Add a link for this node...
	  */

	  snprintf(line, sizeof(line), "#%s", nn->anchor);
	  cgiSetArray("BMLINK", i, line);
	  cgiSetArray("BMTEXT", i, nn->text);
	  cgiSetArray("BMINDENT", i, "2");

	  i ++;
	}

      cupsArrayRestore(hi->sorted);
    }
  }

 /*
  * Show the search and bookmark content...
  */

  if (!helpfile || !printable)
    cgiCopyTemplateLang("help-header.tmpl");
  else
    cgiCopyTemplateLang("help-printable.tmpl");

 /*
  * If we are viewing a file, copy it in now...
  */

  if (helpfile)
  {
    if ((fp = cupsFileOpen(filename, "r")) != NULL)
    {
      int	inbody;			/* Are we inside the body? */


      inbody = 0;

      while (cupsFileGets(fp, line, sizeof(line)))
      {
        if (inbody)
	{
	  if (!_cups_strncasecmp(line, "</BODY>", 7))
	    break;

	  printf("%s\n", line);
        }
	else if (!_cups_strncasecmp(line, "<BODY", 5))
	  inbody = 1;
      }

      cupsFileClose(fp);
    }
    else
    {
      perror(filename);
      cgiSetVariable("ERROR", cgiText(_("Unable to open help file.")));
      cgiCopyTemplateLang("error.tmpl");
    }
  }

 /*
  * Send a standard trailer...
  */

  if (!printable)
  {
    cgiCopyTemplateLang("help-trailer.tmpl");
    cgiEndHTML();
  }
  else
    puts("</BODY>\n</HTML>");

 /*
  * Delete the index...
  */

  helpDeleteIndex(hi);

 /*
  * Return with no errors...
  */

  return (0);
}

int					/* O - 0 on success, -1 on error */
helpSaveIndex(help_index_t *hi,		/* I - Index */
              const char   *hifile)	/* I - Index filename */
{
  cups_file_t	*fp;			/* Index file */
  help_node_t	*node;			/* Current node */
  help_word_t	*word;			/* Current word */


  DEBUG_printf(("helpSaveIndex(hi=%p, hifile=\"%s\")", hi, hifile));

 /*
  * Try creating a new index file...
  */

  if ((fp = cupsFileOpen(hifile, "w9")) == NULL)
    return (-1);

 /*
  * Lock the file while we write it...
  */

  cupsFileLock(fp, 1);

  cupsFilePuts(fp, "HELPV2\n");

  for (node = (help_node_t *)cupsArrayFirst(hi->nodes);
       node;
       node = (help_node_t *)cupsArrayNext(hi->nodes))
  {
   /*
    * Write the current node with/without the anchor...
    */

    if (node->anchor)
    {
      if (cupsFilePrintf(fp, "%s#%s " CUPS_LLFMT " " CUPS_LLFMT " \"%s\"\n",
                         node->filename, node->anchor,
                         CUPS_LLCAST node->offset, CUPS_LLCAST node->length,
			 node->text) < 0)
        break;
    }
    else
    {
      if (cupsFilePrintf(fp, "%s %d " CUPS_LLFMT " " CUPS_LLFMT " \"%s\" \"%s\"\n",
                         node->filename, (int)node->mtime,
                         CUPS_LLCAST node->offset, CUPS_LLCAST node->length,
			 node->section ? node->section : "", node->text) < 0)
        break;
    }

   /*
    * Then write the words associated with the node...
    */

    for (word = (help_word_t *)cupsArrayFirst(node->words);
         word;
	 word = (help_word_t *)cupsArrayNext(node->words))
      if (cupsFilePrintf(fp, " %d %s\n", word->count, word->text) < 0)
        break;
  }

  cupsFileFlush(fp);

  if (cupsFileClose(fp) < 0)
    return (-1);
  else if (node)
    return (-1);
  else
    return (0);
}

static void
mime_load_convs(
    mime_t       *mime,			/* I - MIME database */
    const char   *filename,		/* I - Convs file to load */
    const char   *filterpath,		/* I - Path for filters */
    cups_array_t *filtercache)		/* I - Filter program cache */
{
  cups_file_t	*fp;			/* Convs file */
  char		line[1024],		/* Input line from file */
		*lineptr,		/* Current position in line */
		super[MIME_MAX_SUPER],	/* Super-type name */
		type[MIME_MAX_TYPE],	/* Type name */
		*temp,			/* Temporary pointer */
		*filter;		/* Filter program */
  mime_type_t	*temptype,		/* MIME type looping var */
		*dsttype;		/* Destination MIME type */
  int		cost;			/* Cost of filter */


  DEBUG_printf(("2mime_load_convs(mime=%p, filename=\"%s\", filterpath=\"%s\", "
                "filtercache=%p)", mime, filename, filterpath, filtercache));

 /*
  * First try to open the file...
  */

  if ((fp = cupsFileOpen(filename, "r")) == NULL)
  {
    DEBUG_printf(("3mime_load_convs: Unable to open \"%s\": %s", filename,
                  strerror(errno)));
    _mimeError(mime, "Unable to open \"%s\": %s", filename, strerror(errno));
    return;
  }

 /*
  * Then read each line from the file, skipping any comments in the file...
  */

  while (cupsFileGets(fp, line, sizeof(line)) != NULL)
  {
   /*
    * Skip blank lines and lines starting with a #...
    */

    if (!line[0] || line[0] == '#')
      continue;

   /*
    * Strip trailing whitespace...
    */

    for (lineptr = line + strlen(line) - 1;
         lineptr >= line && isspace(*lineptr & 255);
	 lineptr --)
      *lineptr = '\0';

   /*
    * Extract the destination super-type and type names from the middle of
    * the line.
    */

    lineptr = line;
    while (*lineptr != ' ' && *lineptr != '\t' && *lineptr != '\0')
      lineptr ++;

    while (*lineptr == ' ' || *lineptr == '\t')
      lineptr ++;

    temp = super;

    while (*lineptr != '/' && *lineptr != '\n' && *lineptr != '\0' &&
           (temp - super + 1) < MIME_MAX_SUPER)
      *temp++ = tolower(*lineptr++ & 255);

    *temp = '\0';

    if (*lineptr != '/')
      continue;

    lineptr ++;
    temp = type;

    while (*lineptr != ' ' && *lineptr != '\t' && *lineptr != '\n' &&
           *lineptr != '\0' && (temp - type + 1) < MIME_MAX_TYPE)
      *temp++ = tolower(*lineptr++ & 255);

    *temp = '\0';

    if (*lineptr == '\0' || *lineptr == '\n')
      continue;

    if ((dsttype = mimeType(mime, super, type)) == NULL)
    {
      DEBUG_printf(("3mime_load_convs: Destination type %s/%s not found.",
                    super, type));
      continue;
    }

   /*
    * Then get the cost and filter program...
//.........这里部分代码省略.........

static int				/* O - Status */
random_tests(void)
{
  int		status,			/* Status of tests */
		pass,			/* Current pass */
		count,			/* Number of records read */
		record,			/* Current record */
		num_records;		/* Number of records */
  ssize_t	pos,			/* Position in file */
		expected;		/* Expected position in file */
  cups_file_t	*fp;			/* File */
  char		buffer[512];		/* Data buffer */


 /*
  * Run 4 passes, each time appending to a data file and then reopening the
  * file for reading to validate random records in the file.
  */

  for (status = 0, pass = 0; pass < 4; pass ++)
  {
   /*
    * cupsFileOpen(append)
    */

    printf("\ncupsFileOpen(append %d): ", pass);

    if ((fp = cupsFileOpen("testfile.dat", "a")) == NULL)
    {
      printf("FAIL (%s)\n", strerror(errno));
      status ++;
      break;
    }
    else
      puts("PASS");

   /*
    * cupsFileTell()
    */

    expected = 256 * sizeof(buffer) * pass;

    fputs("cupsFileTell(): ", stdout);
    if ((pos = cupsFileTell(fp)) != expected)
    {
      printf("FAIL (" CUPS_LLFMT " instead of " CUPS_LLFMT ")\n",
	     CUPS_LLCAST pos, CUPS_LLCAST expected);
      status ++;
      break;
    }
    else
      puts("PASS");

   /*
    * cupsFileWrite()
    */

    fputs("cupsFileWrite(256 512-byte records): ", stdout);
    for (record = 0; record < 256; record ++)
    {
      memset(buffer, record, sizeof(buffer));
      if (cupsFileWrite(fp, buffer, sizeof(buffer)) < sizeof(buffer))
        break;
    }

    if (record < 256)
    {
      printf("FAIL (%d: %s)\n", record, strerror(errno));
      status ++;
      break;
    }
    else
      puts("PASS");

   /*
    * cupsFileTell()
    */

    expected += 256 * sizeof(buffer);

    fputs("cupsFileTell(): ", stdout);
    if ((pos = cupsFileTell(fp)) != expected)
    {
      printf("FAIL (" CUPS_LLFMT " instead of " CUPS_LLFMT ")\n",
             CUPS_LLCAST pos, CUPS_LLCAST expected);
      status ++;
      break;
    }
    else
      puts("PASS");

    cupsFileClose(fp);

   /*
    * cupsFileOpen(read)
    */

    printf("\ncupsFileOpen(read %d): ", pass);

    if ((fp = cupsFileOpen("testfile.dat", "r")) == NULL)
//.........这里部分代码省略.........

int					/* O - Exit status */
main(int  argc,				/* I - Number of command-line arguments */
     char *argv[])			/* I - Command-line arguments */
{
  int		status;			/* Exit status */
  char		filename[1024];		/* Filename buffer */
  cups_file_t	*fp;			/* File pointer */
#ifndef WIN32
  int		fds[2];			/* Open file descriptors */
  cups_file_t	*fdfile;		/* File opened with cupsFileOpenFd() */
#endif /* !WIN32 */
  int		count;			/* Number of lines in file */


  if (argc == 1)
  {
   /*
    * Do uncompressed file tests...
    */

    status = read_write_tests(0);

#ifdef HAVE_LIBZ
   /*
    * Do compressed file tests...
    */

    putchar('\n');

    status += read_write_tests(1);
#endif /* HAVE_LIBZ */

   /*
    * Do uncompressed random I/O tests...
    */

    status += random_tests();

#ifndef WIN32
   /*
    * Test fdopen and close without reading...
    */

    pipe(fds);
    close(fds[1]);

    fputs("\ncupsFileOpenFd(fd, \"r\"): ", stdout);
    fflush(stdout);

    if ((fdfile = cupsFileOpenFd(fds[0], "r")) == NULL)
    {
      puts("FAIL");
      status ++;
    }
    else
    {
     /*
      * Able to open file, now close without reading.  If we don't return
      * before the alarm fires, that is a failure and we will crash on the
      * alarm signal...
      */

      puts("PASS");
      fputs("cupsFileClose(no read): ", stdout);
      fflush(stdout);

      alarm(5);
      cupsFileClose(fdfile);
      alarm(0);

      puts("PASS");
    }
#endif /* !WIN32 */

   /*
    * Count lines in psglyphs, rewind, then count again.
    */

    fputs("\ncupsFileOpen(\"../data/media.defs\", \"r\"): ", stdout);

    if ((fp = cupsFileOpen("../data/media.defs", "r")) == NULL)
    {
      puts("FAIL");
      status ++;
    }
    else
    {
      puts("PASS");
      fputs("cupsFileGets: ", stdout);

      if ((count = count_lines(fp)) != 208)
      {
        printf("FAIL (got %d lines, expected 208)\n", count);
	status ++;
      }
      else
      {
        puts("PASS");
	fputs("cupsFileRewind: ", stdout);

//.........这里部分代码省略.........

int					/* O  - 1 if log file open */
cupsdCheckLogFile(cups_file_t **lf,	/* IO - Log file */
	          const char  *logname)	/* I  - Log filename */
{
  char		backname[1024],		/* Backup log filename */
		filename[1024],		/* Formatted log filename */
		*ptr;			/* Pointer into filename */
  const char	*logptr;		/* Pointer into log filename */


 /*
  * See if we have a log file to check...
  */

  if (!lf || !logname || !logname[0])
    return (1);

 /*
  * Handle logging to stderr...
  */

  if (!strcmp(logname, "stderr"))
  {
    *lf = LogStderr;
    return (1);
  }

 /*
  * Format the filename as needed...
  */

  if (!*lf ||
      (strncmp(logname, "/dev/", 5) && cupsFileTell(*lf) > MaxLogSize &&
       MaxLogSize > 0))
  {
   /*
    * Handle format strings...
    */

    filename[sizeof(filename) - 1] = '\0';

    if (logname[0] != '/')
    {
      strlcpy(filename, ServerRoot, sizeof(filename));
      strlcat(filename, "/", sizeof(filename));
    }
    else
      filename[0] = '\0';

    for (logptr = logname, ptr = filename + strlen(filename);
         *logptr && ptr < (filename + sizeof(filename) - 1);
	 logptr ++)
      if (*logptr == '%')
      {
       /*
        * Format spec...
	*/

        logptr ++;
	if (*logptr == 's')
	{
	 /*
	  * Insert the server name...
	  */

	  strlcpy(ptr, ServerName, sizeof(filename) - (size_t)(ptr - filename));
	  ptr += strlen(ptr);
	}
        else
	{
	 /*
	  * Otherwise just insert the character...
	  */

	  *ptr++ = *logptr;
	}
      }
      else
	*ptr++ = *logptr;

    *ptr = '\0';
  }

 /*
  * See if the log file is open...
  */

  if (!*lf)
  {
   /*
    * Nope, open the log file...
    */

    if ((*lf = cupsFileOpen(filename, "a")) == NULL)
    {
     /*
      * If the file is in CUPS_LOGDIR then try to create a missing directory...
      */

      if (!strncmp(filename, CUPS_LOGDIR, strlen(CUPS_LOGDIR)))
//.........这里部分代码省略.........

static void
print_file(http_t        *http,		/* I - Connection to destination */
           cups_dest_t   *dest,		/* I - Destination */
	   cups_dinfo_t  *dinfo,	/* I - Destination information */
           const char    *filename,	/* I - File to print */
	   int           num_options,	/* I - Number of options */
	   cups_option_t *options)	/* I - Options */
{
  cups_file_t	*fp;			/* File to print */
  int		job_id;			/* Job ID */
  ipp_status_t	status;			/* Submission status */
  const char	*title;			/* Title of job */
  char		buffer[32768];		/* File buffer */
  ssize_t	bytes;			/* Bytes read/to write */


  if ((fp = cupsFileOpen(filename, "r")) == NULL)
  {
    printf("Unable to open \"%s\": %s\n", filename, strerror(errno));
    return;
  }

  if ((title = strrchr(filename, '/')) != NULL)
    title ++;
  else
    title = filename;

  if ((status = cupsCreateDestJob(http, dest, dinfo, &job_id, title, num_options, options)) > IPP_STATUS_OK_IGNORED_OR_SUBSTITUTED)
  {
    printf("Unable to create job: %s\n", cupsLastErrorString());
    cupsFileClose(fp);
    return;
  }

  printf("Created job ID: %d\n", job_id);

  if (cupsStartDestDocument(http, dest, dinfo, job_id, title, CUPS_FORMAT_AUTO, 0, NULL, 1) != HTTP_STATUS_CONTINUE)
  {
    printf("Unable to send document: %s\n", cupsLastErrorString());
    cupsFileClose(fp);
    return;
  }

  while ((bytes = cupsFileRead(fp, buffer, sizeof(buffer))) > 0)
  {
    if (cupsWriteRequestData(http, buffer, (size_t)bytes) != HTTP_STATUS_CONTINUE)
    {
      printf("Unable to write document data: %s\n", cupsLastErrorString());
      break;
    }
  }

  cupsFileClose(fp);

  if ((status = cupsFinishDestDocument(http, dest, dinfo)) > IPP_STATUS_OK_IGNORED_OR_SUBSTITUTED)
  {
    printf("Unable to send document: %s\n", cupsLastErrorString());
    return;
  }

  puts("Job queued.");
}

//.........这里部分代码省略.........
  }
  else
  {
   /*
    * Get values from the response...
    */

    if (accepting)
    {
      if ((attr = ippFindAttribute(response, "printer-is-accepting-jobs",
				   IPP_TAG_BOOLEAN)) == NULL)
	syslog(LOG_ERR, "No printer-is-accepting-jobs attribute found in "
			"response from server!");
      else
	*accepting = attr->values[0].boolean;
    }

    if (shared)
    {
      if ((attr = ippFindAttribute(response, "printer-is-shared",
				   IPP_TAG_BOOLEAN)) == NULL)
      {
	syslog(LOG_ERR, "No printer-is-shared attribute found in "
			"response from server!");
	*shared = 1;
      }
      else
	*shared = attr->values[0].boolean;
    }

    if (state)
    {
      if ((attr = ippFindAttribute(response, "printer-state",
				   IPP_TAG_ENUM)) == NULL)
	syslog(LOG_ERR, "No printer-state attribute found in "
			"response from server!");
      else
	*state = (ipp_pstate_t)attr->values[0].integer;
    }

    ippDelete(response);
  }

 /*
  * Next look for the printer in the lpoptions file...
  */

  num_options = 0;

  if (options && shared && accepting)
  {
    if ((cups_serverroot = getenv("CUPS_SERVERROOT")) == NULL)
      cups_serverroot = CUPS_SERVERROOT;

    snprintf(line, sizeof(line), "%s/lpoptions", cups_serverroot);
    if ((fp = cupsFileOpen(line, "r")) != NULL)
    {
      linenum = 0;
      while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum))
      {
       /*
	* Make sure we have "Dest name options" or "Default name options"...
	*/

	if ((_cups_strcasecmp(line, "Dest") && _cups_strcasecmp(line, "Default")) || !value)
          continue;

       /*
	* Separate destination name from options...
	*/

	for (optptr = value; *optptr && !isspace(*optptr & 255); optptr ++);

	while (*optptr == ' ')
	  *optptr++ = '\0';

       /*
	* If this is our destination, parse the options and break out of
	* the loop - we're done!
	*/

	if (!_cups_strcasecmp(value, name))
	{
          num_options = cupsParseOptions(optptr, num_options, options);
	  break;
	}
      }

      cupsFileClose(fp);
    }
  }
  else if (options)
    *options = NULL;

 /*
  * Return the number of options for this destination...
  */

  return (num_options);
}

void
_cupsSetDefaults(void)
{
  cups_file_t	*fp;			/* File */
  const char	*home;			/* Home directory of user */
  char