cups-private.h

/*
 * Private definitions for CUPS.
 *
 * Copyright © 2007-2019 by Apple Inc.
 * Copyright © 1997-2007 by Easy Software Products, all rights reserved.
 *
 * Licensed under Apache License v2.0.  See the file "LICENSE" for more
 * information.
 */

#ifndef _CUPS_CUPS_PRIVATE_H_
#  define _CUPS_CUPS_PRIVATE_H_

/*
 * Include necessary headers...
 */

#  include "string-private.h"
#  include "array-private.h"
#  include "ipp-private.h"
#  include "http-private.h"
#  include "language-private.h"
#  include "pwg-private.h"
#  include "thread-private.h"
#  include <cups/cups.h>
#  ifdef __APPLE__
#    include <sys/cdefs.h>
#    include <CoreFoundation/CoreFoundation.h>
#  endif /* __APPLE__ */


/*
 * C++ magic...
 */

#  ifdef __cplusplus
extern "C" {
#  endif /* __cplusplus */


/*
 * Types...
 */

typedef struct _cups_buffer_s		/**** Read/write buffer ****/
{
  struct _cups_buffer_s	*next;		/* Next buffer in list */
  size_t		size;		/* Size of buffer */
  char			used,		/* Is this buffer used? */
			d[1];		/* Data buffer */
} _cups_buffer_t;

typedef struct _cups_raster_error_s	/**** Error buffer structure ****/
{
  char	*start,				/* Start of buffer */
	*current,			/* Current position in buffer */
	*end;				/* End of buffer */
} _cups_raster_error_t;

typedef enum _cups_digestoptions_e	/**** Digest Options values */
{
  _CUPS_DIGESTOPTIONS_NONE,		/* No Digest authentication options */
  _CUPS_DIGESTOPTIONS_DENYMD5		/* Do not use MD5 hashes for digest */
} _cups_digestoptions_t;

typedef enum _cups_uatokens_e		/**** UserAgentTokens values */
{
  _CUPS_UATOKENS_NONE,			/* Do not send User-Agent */
  _CUPS_UATOKENS_PRODUCT_ONLY,		/* CUPS IPP */
  _CUPS_UATOKENS_MAJOR,			/* CUPS/major IPP/2 */
  _CUPS_UATOKENS_MINOR,			/* CUPS/major.minor IPP/2.1 */
  _CUPS_UATOKENS_MINIMAL,		/* CUPS/major.minor.patch IPP/2.1 */
  _CUPS_UATOKENS_OS,			/* CUPS/major.minor.patch (osname osversion) IPP/2.1 */
  _CUPS_UATOKENS_FULL			/* CUPS/major.minor.patch (osname osversion; architecture) IPP/2.1 */
} _cups_uatokens_t;

typedef struct _cups_globals_s		/**** CUPS global state data ****/
{
  /* Multiple places... */
  const char		*cups_datadir,	/* CUPS_DATADIR environment var */
			*cups_serverbin,/* CUPS_SERVERBIN environment var */
			*cups_serverroot,
					/* CUPS_SERVERROOT environment var */
			*cups_statedir,	/* CUPS_STATEDIR environment var */
			*home,		/* HOME environment var */
			*localedir;	/* LOCALDIR environment var */

  /* adminutil.c */
  time_t		cupsd_update;	/* Last time we got or set cupsd.conf */
  char			cupsd_hostname[HTTP_MAX_HOST];
					/* Hostname for connection */
  int			cupsd_num_settings;
					/* Number of server settings */
  cups_option_t		*cupsd_settings;/* Server settings */

  /* auth.c */
#  ifdef HAVE_GSSAPI
  char			gss_service_name[32];
  					/* Kerberos service name */
#  endif /* HAVE_GSSAPI */

  /* backend.c */
  char			resolved_uri[1024];
					/* Buffer for cupsBackendDeviceURI */

  /* debug.c */
#  ifdef DEBUG
  int			thread_id;	/* Friendly thread ID */
#  endif /* DEBUG */

  /* file.c */
  cups_file_t		*stdio_files[3];/* stdin, stdout, stderr */

  /* http.c */
  char			http_date[256];	/* Date+time buffer */

  /* http-addr.c */
  unsigned		ip_addr;	/* Packed IPv4 address */
  char			*ip_ptrs[2];	/* Pointer to packed address */
  struct hostent	hostent;	/* Host entry for IP address */
#  ifdef HAVE_GETADDRINFO
  char			hostname[1024];	/* Hostname */
#  endif /* HAVE_GETADDRINFO */
  int			need_res_init;	/* Need to reinitialize resolver? */

  /* ipp.c */
  ipp_uchar_t		ipp_date[11];	/* RFC-2579 date/time data */
  _cups_buffer_t	*cups_buffers;	/* Buffer list */

  /* ipp-support.c */
  int			ipp_port;	/* IPP port number */
  char			ipp_unknown[255];
					/* Unknown error statuses */

  /* language.c */
  cups_lang_t		*lang_default;	/* Default language */
#  ifdef __APPLE__
  char			language[32];	/* Cached language */
#  endif /* __APPLE__ */

  /* pwg-media.c */
  cups_array_t		*leg_size_lut,	/* Lookup table for legacy names */
			*ppd_size_lut,	/* Lookup table for PPD names */
			*pwg_size_lut;	/* Lookup table for PWG names */
  pwg_media_t		pwg_media;	/* PWG media data for custom size */
  char			pwg_name[65],	/* PWG media name for custom size */
			ppd_name[41];	/* PPD media name for custom size */

  /* raster-error.c */
  _cups_raster_error_t	raster_error;	/* Raster error information */

  /* request.c */
  http_t		*http;		/* Current server connection */
  ipp_status_t		last_error;	/* Last IPP error */
  char			*last_status_message;
					/* Last IPP status-message */

  /* snmp.c */
  char			snmp_community[255];
					/* Default SNMP community name */
  int			snmp_debug;	/* Log SNMP IO to stderr? */

  /* tempfile.c */
  char			tempfile[1024];	/* cupsTempFd/File buffer */

  /* usersys.c */
  _cups_digestoptions_t	digestoptions;	/* DigestOptions setting */
  _cups_uatokens_t	uatokens;	/* UserAgentTokens setting */
  http_encryption_t	encryption;	/* Encryption setting */
  char			user[65],	/* User name */
			user_agent[256],/* User-Agent string */
			server[256],	/* Server address */
			servername[256],/* Server hostname */
			password[128];	/* Password for default callback */
  cups_password_cb2_t	password_cb;	/* Password callback */
  void			*password_data;	/* Password user data */
  http_tls_credentials_t tls_credentials;
					/* Default client credentials */
  cups_client_cert_cb_t	client_cert_cb;	/* Client certificate callback */
  void			*client_cert_data;
					/* Client certificate user data */
  cups_server_cert_cb_t	server_cert_cb;	/* Server certificate callback */
  void			*server_cert_data;
					/* Server certificate user data */
  int			server_version,	/* Server IPP version */
			trust_first,	/* Trust on first use? */
			any_root,	/* Allow any (e.g., self-signed) root */
			expired_certs,	/* Allow expired certs */
			validate_certs;	/* Validate certificates */

  /* util.c */
  char			def_printer[256];
					/* Default printer */
} _cups_globals_t;

typedef struct _cups_media_db_s		/* Media database */
{
  char		*color,			/* Media color, if any */
		*key,			/* Media key, if any */
		*info,			/* Media human-readable name, if any */
		*size_name,		/* Media PWG size name, if provided */
		*source,		/* Media source, if any */
		*type;			/* Media type, if any */
  int		width,			/* Width in hundredths of millimeters */
		length,			/* Length in hundredths of
					 * millimeters */
		bottom,			/* Bottom margin in hundredths of
					 * millimeters */
		left,			/* Left margin in hundredths of
					 * millimeters */
		right,			/* Right margin in hundredths of
					 * millimeters */
		top;			/* Top margin in hundredths of
					 * millimeters */
} _cups_media_db_t;

typedef struct _cups_dconstres_s	/* Constraint/resolver */
{
  char	*name;				/* Name of resolver */
  ipp_t	*collection;			/* Collection containing attrs */
} _cups_dconstres_t;

struct _cups_dinfo_s			/* Destination capability and status
					 * information */
{
  int			version;	/* IPP version */
  const char		*uri;		/* Printer URI */
  char			*resource;	/* Resource path */
  ipp_t			*attrs;		/* Printer attributes */
  int			num_defaults;	/* Number of default options */
  cups_option_t		*defaults;	/* Default options */
  cups_array_t		*constraints;	/* Job constraints */
  cups_array_t		*resolvers;	/* Job resolvers */
  cups_array_t		*localizations;	/* Localization information */
  cups_array_t		*media_db;	/* Media database */
  _cups_media_db_t	min_size,	/* Minimum size */
			max_size;	/* Maximum size */
  unsigned		cached_flags;	/* Flags used for cached media */
  cups_array_t		*cached_db;	/* Cache of media from last index/default */
  time_t		ready_time;	/* When xxx-ready attributes were last queried */
  ipp_t			*ready_attrs;	/* xxx-ready attributes */
  cups_array_t		*ready_db;	/* media[-col]-ready media database */
};


/*
 * Prototypes...
 */

#  ifdef __APPLE__
extern CFStringRef	_cupsAppleCopyDefaultPaperID(void) _CUPS_PRIVATE;
extern CFStringRef	_cupsAppleCopyDefaultPrinter(void) _CUPS_PRIVATE;
extern int		_cupsAppleGetUseLastPrinter(void) _CUPS_PRIVATE;
extern void		_cupsAppleSetDefaultPaperID(CFStringRef name) _CUPS_PRIVATE;
extern void		_cupsAppleSetDefaultPrinter(CFStringRef name) _CUPS_PRIVATE;
extern void		_cupsAppleSetUseLastPrinter(int uselast) _CUPS_PRIVATE;
#  endif /* __APPLE__ */

extern char		*_cupsBufferGet(size_t size) _CUPS_PRIVATE;
extern void		_cupsBufferRelease(char *b) _CUPS_PRIVATE;

extern http_t		*_cupsConnect(void) _CUPS_PRIVATE;
extern char		*_cupsCreateDest(const char *name, const char *info, const char *device_id, const char *device_uri, char *uri, size_t urisize) _CUPS_PRIVATE;
extern ipp_attribute_t	*_cupsEncodeOption(ipp_t *ipp, ipp_tag_t group_tag, _ipp_option_t *map, const char *name, const char *value) _CUPS_PRIVATE;
extern int		_cupsGet1284Values(const char *device_id, cups_option_t **values) _CUPS_PRIVATE;
extern const char	*_cupsGetDestResource(cups_dest_t *dest, unsigned flags, char *resource, size_t resourcesize) _CUPS_PRIVATE;
extern int		_cupsGetDests(http_t *http, ipp_op_t op, const char *name, cups_dest_t **dests, cups_ptype_t type, cups_ptype_t mask) _CUPS_PRIVATE;
extern const char	*_cupsGetPassword(const char *prompt) _CUPS_PRIVATE;
extern void		_cupsGlobalLock(void) _CUPS_PRIVATE;
extern _cups_globals_t	*_cupsGlobals(void) _CUPS_PRIVATE;
extern void		_cupsGlobalUnlock(void) _CUPS_PRIVATE;
#  ifdef HAVE_GSSAPI
extern const char	*_cupsGSSServiceName(void) _CUPS_PRIVATE;
#  endif /* HAVE_GSSAPI */
extern int		_cupsNextDelay(int current, int *previous) _CUPS_PRIVATE;
extern void		_cupsSetDefaults(void) _CUPS_INTERNAL;
extern void		_cupsSetError(ipp_status_t status, const char *message, int localize) _CUPS_PRIVATE;
extern void		_cupsSetHTTPError(http_status_t status) _CUPS_INTERNAL;
#  ifdef HAVE_GSSAPI
extern int		_cupsSetNegotiateAuthString(http_t *http, const char *method, const char *resource) _CUPS_PRIVATE;
#  endif /* HAVE_GSSAPI */
extern char		*_cupsUserDefault(char *name, size_t namesize) _CUPS_INTERNAL;


/*
 * C++ magic...
 */

#  ifdef __cplusplus
}
#  endif /* __cplusplus */
#endif /* !_CUPS_CUPS_PRIVATE_H_ */