Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

10 files changed, 3006 insertions, 0 deletions

diff --git a/third_party/cups/LICENSE b/third_party/cups/LICENSE
new file mode 100644
index 0000000000..d645695673
--- /dev/null
+++ b/third_party/cups/LICENSE
@@ -0,0 +1,202 @@
+
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diff --git a/third_party/cups/include/cups/array.h b/third_party/cups/include/cups/array.h
new file mode 100644
index 0000000000..e5468a3020
--- /dev/null
+++ b/third_party/cups/include/cups/array.h
@@ -0,0 +1,80 @@
+/*
+ * Sorted array definitions for CUPS.
+ *
+ * Copyright 2007-2010 by Apple Inc.
+ * Copyright 1997-2007 by Easy Software Products.
+ *
+ * Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
+ */
+
+#ifndef _CUPS_ARRAY_H_
+#  define _CUPS_ARRAY_H_
+
+/*
+ * Include necessary headers...
+ */
+
+#  include "versioning.h"
+#  include <stdlib.h>
+
+
+/*
+ * C++ magic...
+ */
+
+#  ifdef __cplusplus
+extern "C" {
+#  endif /* __cplusplus */
+
+
+/*
+ * Types and structures...
+ */
+
+typedef struct _cups_array_s cups_array_t;
+					/**** CUPS array type ****/
+typedef int (*cups_array_func_t)(void *first, void *second, void *data);
+					/**** Array comparison function ****/
+typedef int (*cups_ahash_func_t)(void *element, void *data);
+					/**** Array hash function ****/
+typedef void *(*cups_acopy_func_t)(void *element, void *data);
+					/**** Array element copy function ****/
+typedef void (*cups_afree_func_t)(void *element, void *data);
+					/**** Array element free function ****/
+
+
+/*
+ * Functions...
+ */
+
+extern int		cupsArrayAdd(cups_array_t *a, void *e) _CUPS_API_1_2;
+extern void		cupsArrayClear(cups_array_t *a) _CUPS_API_1_2;
+extern int		cupsArrayCount(cups_array_t *a) _CUPS_API_1_2;
+extern void		*cupsArrayCurrent(cups_array_t *a) _CUPS_API_1_2;
+extern void		cupsArrayDelete(cups_array_t *a) _CUPS_API_1_2;
+extern cups_array_t	*cupsArrayDup(cups_array_t *a) _CUPS_API_1_2;
+extern void		*cupsArrayFind(cups_array_t *a, void *e) _CUPS_API_1_2;
+extern void		*cupsArrayFirst(cups_array_t *a) _CUPS_API_1_2;
+extern int		cupsArrayGetIndex(cups_array_t *a) _CUPS_API_1_3;
+extern int		cupsArrayGetInsert(cups_array_t *a) _CUPS_API_1_3;
+extern void		*cupsArrayIndex(cups_array_t *a, int n) _CUPS_API_1_2;
+extern int		cupsArrayInsert(cups_array_t *a, void *e) _CUPS_API_1_2;
+extern void		*cupsArrayLast(cups_array_t *a) _CUPS_API_1_2;
+extern cups_array_t	*cupsArrayNew(cups_array_func_t f, void *d) _CUPS_API_1_2;
+extern cups_array_t	*cupsArrayNew2(cups_array_func_t f, void *d,
+			               cups_ahash_func_t h, int hsize) _CUPS_API_1_3;
+extern cups_array_t	*cupsArrayNew3(cups_array_func_t f, void *d,
+			               cups_ahash_func_t h, int hsize,
+				       cups_acopy_func_t cf,
+				       cups_afree_func_t ff) _CUPS_API_1_5;
+extern void		*cupsArrayNext(cups_array_t *a) _CUPS_API_1_2;
+extern void		*cupsArrayPrev(cups_array_t *a) _CUPS_API_1_2;
+extern int		cupsArrayRemove(cups_array_t *a, void *e) _CUPS_API_1_2;
+extern void		*cupsArrayRestore(cups_array_t *a) _CUPS_API_1_2;
+extern int		cupsArraySave(cups_array_t *a) _CUPS_API_1_2;
+extern void		*cupsArrayUserData(cups_array_t *a) _CUPS_API_1_2;
+
+#  ifdef __cplusplus
+}
+#  endif /* __cplusplus */
+#endif /* !_CUPS_ARRAY_H_ */
diff --git a/third_party/cups/include/cups/cups.h b/third_party/cups/include/cups/cups.h
new file mode 100644
index 0000000000..74955ebd6f
--- /dev/null
+++ b/third_party/cups/include/cups/cups.h
@@ -0,0 +1,611 @@
+/*
+ * API definitions for CUPS.
+ *
+ * Copyright © 2007-2019 by Apple Inc.
+ * Copyright © 1997-2007 by Easy Software Products.
+ *
+ * Licensed under Apache License v2.0.  See the file "LICENSE" for more
+ * information.
+ */
+
+#ifndef _CUPS_CUPS_H_
+#  define _CUPS_CUPS_H_
+
+/*
+ * Include necessary headers...
+ */
+
+#  include <sys/types.h>
+#  if defined(_WIN32) && !defined(__CUPS_SSIZE_T_DEFINED)
+#    define __CUPS_SSIZE_T_DEFINED
+#    include <stddef.h>
+/* Windows does not support the ssize_t type, so map it to long... */
+typedef long ssize_t;			/* @private@ */
+#  endif /* _WIN32 && !__CUPS_SSIZE_T_DEFINED */
+
+#  include "file.h"
+#  include "ipp.h"
+#  include "language.h"
+#  include "pwg.h"
+
+
+/*
+ * C++ magic...
+ */
+
+#  ifdef __cplusplus
+extern "C" {
+#  endif /* __cplusplus */
+
+
+/*
+ * Constants...
+ */
+
+#  define CUPS_VERSION			2.0303
+#  define CUPS_VERSION_MAJOR		2
+#  define CUPS_VERSION_MINOR		3
+#  define CUPS_VERSION_PATCH		3
+
+#  define CUPS_BC_FD			3
+					/* Back-channel file descriptor for
+					 * select/poll */
+#  define CUPS_DATE_ANY			(time_t)-1
+#  define CUPS_EXCLUDE_NONE		(const char *)0
+#  define CUPS_FORMAT_AUTO		"application/octet-stream"
+#  define CUPS_FORMAT_COMMAND		"application/vnd.cups-command"
+#  define CUPS_FORMAT_JPEG		"image/jpeg"
+#  define CUPS_FORMAT_PDF		"application/pdf"
+#  define CUPS_FORMAT_POSTSCRIPT	"application/postscript"
+#  define CUPS_FORMAT_RAW		"application/vnd.cups-raw"
+#  define CUPS_FORMAT_TEXT		"text/plain"
+#  define CUPS_HTTP_DEFAULT		(http_t *)0
+#  define CUPS_INCLUDE_ALL		(const char *)0
+#  define CUPS_JOBID_ALL		-1
+#  define CUPS_JOBID_CURRENT		0
+#  define CUPS_LENGTH_VARIABLE		(ssize_t)0
+#  define CUPS_TIMEOUT_DEFAULT		0
+#  define CUPS_WHICHJOBS_ALL		-1
+#  define CUPS_WHICHJOBS_ACTIVE		0
+#  define CUPS_WHICHJOBS_COMPLETED	1
+
+/* Flags for cupsConnectDest and cupsEnumDests */
+#  define CUPS_DEST_FLAGS_NONE		0x00
+					/* No flags are set */
+#  define CUPS_DEST_FLAGS_UNCONNECTED	0x01
+					/* There is no connection */
+#  define CUPS_DEST_FLAGS_MORE		0x02
+					/* There are more destinations */
+#  define CUPS_DEST_FLAGS_REMOVED	0x04
+					/* The destination has gone away */
+#  define CUPS_DEST_FLAGS_ERROR		0x08
+					/* An error occurred */
+#  define CUPS_DEST_FLAGS_RESOLVING	0x10
+					/* The destination address is being
+					 * resolved */
+#  define CUPS_DEST_FLAGS_CONNECTING	0x20
+					/* A connection is being established */
+#  define CUPS_DEST_FLAGS_CANCELED	0x40
+					/* Operation was canceled */
+#  define CUPS_DEST_FLAGS_DEVICE        0x80
+                                        /* For @link cupsConnectDest@: Connect to device */
+
+/* Flags for cupsGetDestMediaByName/Size */
+#  define CUPS_MEDIA_FLAGS_DEFAULT 	0x00
+					/* Find the closest size supported by
+					 * the printer */
+#  define CUPS_MEDIA_FLAGS_BORDERLESS	0x01
+					/* Find a borderless size */
+#  define CUPS_MEDIA_FLAGS_DUPLEX	0x02
+					/* Find a size compatible with 2-sided
+					 * printing */
+#  define CUPS_MEDIA_FLAGS_EXACT	0x04
+					/* Find an exact match for the size */
+#  define CUPS_MEDIA_FLAGS_READY	0x08
+					/* If the printer supports media
+					 * sensing, find the size amongst the
+					 * "ready" media. */
+
+/* Options and values */
+#  define CUPS_COPIES			"copies"
+#  define CUPS_COPIES_SUPPORTED		"copies-supported"
+
+#  define CUPS_FINISHINGS		"finishings"
+#  define CUPS_FINISHINGS_SUPPORTED	"finishings-supported"
+
+#  define CUPS_FINISHINGS_BIND		"7"
+#  define CUPS_FINISHINGS_COVER		"6"
+#  define CUPS_FINISHINGS_FOLD		"10"
+#  define CUPS_FINISHINGS_NONE		"3"
+#  define CUPS_FINISHINGS_PUNCH		"5"
+#  define CUPS_FINISHINGS_STAPLE	"4"
+#  define CUPS_FINISHINGS_TRIM		"11"
+
+#  define CUPS_MEDIA			"media"
+#  define CUPS_MEDIA_READY		"media-ready"
+#  define CUPS_MEDIA_SUPPORTED		"media-supported"
+
+#  define CUPS_MEDIA_3X5		"na_index-3x5_3x5in"
+#  define CUPS_MEDIA_4X6		"na_index-4x6_4x6in"
+#  define CUPS_MEDIA_5X7		"na_5x7_5x7in"
+#  define CUPS_MEDIA_8X10		"na_govt-letter_8x10in"
+#  define CUPS_MEDIA_A3			"iso_a3_297x420mm"
+#  define CUPS_MEDIA_A4			"iso_a4_210x297mm"
+#  define CUPS_MEDIA_A5			"iso_a5_148x210mm"
+#  define CUPS_MEDIA_A6			"iso_a6_105x148mm"
+#  define CUPS_MEDIA_ENV10		"na_number-10_4.125x9.5in"
+#  define CUPS_MEDIA_ENVDL		"iso_dl_110x220mm"
+#  define CUPS_MEDIA_LEGAL		"na_legal_8.5x14in"
+#  define CUPS_MEDIA_LETTER		"na_letter_8.5x11in"
+#  define CUPS_MEDIA_PHOTO_L		"oe_photo-l_3.5x5in"
+#  define CUPS_MEDIA_SUPERBA3		"na_super-b_13x19in"
+#  define CUPS_MEDIA_TABLOID		"na_ledger_11x17in"
+
+#  define CUPS_MEDIA_SOURCE		"media-source"
+#  define CUPS_MEDIA_SOURCE_SUPPORTED	"media-source-supported"
+
+#  define CUPS_MEDIA_SOURCE_AUTO	"auto"
+#  define CUPS_MEDIA_SOURCE_MANUAL	"manual"
+
+#  define CUPS_MEDIA_TYPE		"media-type"
+#  define CUPS_MEDIA_TYPE_SUPPORTED	"media-type-supported"
+
+#  define CUPS_MEDIA_TYPE_AUTO		"auto"
+#  define CUPS_MEDIA_TYPE_ENVELOPE	"envelope"
+#  define CUPS_MEDIA_TYPE_LABELS	"labels"
+#  define CUPS_MEDIA_TYPE_LETTERHEAD	"stationery-letterhead"
+#  define CUPS_MEDIA_TYPE_PHOTO		"photographic"
+#  define CUPS_MEDIA_TYPE_PHOTO_GLOSSY	"photographic-glossy"
+#  define CUPS_MEDIA_TYPE_PHOTO_MATTE	"photographic-matte"
+#  define CUPS_MEDIA_TYPE_PLAIN		"stationery"
+#  define CUPS_MEDIA_TYPE_TRANSPARENCY	"transparency"
+
+#  define CUPS_NUMBER_UP		"number-up"
+#  define CUPS_NUMBER_UP_SUPPORTED	"number-up-supported"
+
+#  define CUPS_ORIENTATION		"orientation-requested"
+#  define CUPS_ORIENTATION_SUPPORTED	"orientation-requested-supported"
+
+#  define CUPS_ORIENTATION_PORTRAIT	"3"
+#  define CUPS_ORIENTATION_LANDSCAPE	"4"
+
+#  define CUPS_PRINT_COLOR_MODE		"print-color-mode"
+#  define CUPS_PRINT_COLOR_MODE_SUPPORTED "print-color-mode-supported"
+
+#  define CUPS_PRINT_COLOR_MODE_AUTO	"auto"
+#  define CUPS_PRINT_COLOR_MODE_MONOCHROME "monochrome"
+#  define CUPS_PRINT_COLOR_MODE_COLOR	"color"
+
+#  define CUPS_PRINT_QUALITY		"print-quality"
+#  define CUPS_PRINT_QUALITY_SUPPORTED	"print-quality-supported"
+
+#  define CUPS_PRINT_QUALITY_DRAFT	"3"
+#  define CUPS_PRINT_QUALITY_NORMAL	"4"
+#  define CUPS_PRINT_QUALITY_HIGH	"5"
+
+#  define CUPS_SIDES			"sides"
+#  define CUPS_SIDES_SUPPORTED		"sides-supported"
+
+#  define CUPS_SIDES_ONE_SIDED		"one-sided"
+#  define CUPS_SIDES_TWO_SIDED_PORTRAIT	"two-sided-long-edge"
+#  define CUPS_SIDES_TWO_SIDED_LANDSCAPE "two-sided-short-edge"
+
+
+/*
+ * Types and structures...
+ */
+
+typedef unsigned cups_ptype_t;		/* Printer type/capability bits */
+enum cups_ptype_e			/* Printer type/capability bit
+					 * constants */
+{					/* Not a typedef'd enum so we can OR */
+  CUPS_PRINTER_LOCAL = 0x0000,		/* Local printer or class */
+  CUPS_PRINTER_CLASS = 0x0001,		/* Printer class */
+  CUPS_PRINTER_REMOTE = 0x0002,		/* Remote printer or class */
+  CUPS_PRINTER_BW = 0x0004,		/* Can do B&W printing */
+  CUPS_PRINTER_COLOR = 0x0008,		/* Can do color printing */
+  CUPS_PRINTER_DUPLEX = 0x0010,		/* Can do two-sided printing */
+  CUPS_PRINTER_STAPLE = 0x0020,		/* Can staple output */
+  CUPS_PRINTER_COPIES = 0x0040,		/* Can do copies in hardware */
+  CUPS_PRINTER_COLLATE = 0x0080,	/* Can quickly collate copies */
+  CUPS_PRINTER_PUNCH = 0x0100,		/* Can punch output */
+  CUPS_PRINTER_COVER = 0x0200,		/* Can cover output */
+  CUPS_PRINTER_BIND = 0x0400,		/* Can bind output */
+  CUPS_PRINTER_SORT = 0x0800,		/* Can sort output */
+  CUPS_PRINTER_SMALL = 0x1000,		/* Can print on Letter/Legal/A4-size media */
+  CUPS_PRINTER_MEDIUM = 0x2000,		/* Can print on Tabloid/B/C/A3/A2-size media */
+  CUPS_PRINTER_LARGE = 0x4000,		/* Can print on D/E/A1/A0-size media */
+  CUPS_PRINTER_VARIABLE = 0x8000,	/* Can print on rolls and custom-size media */
+  CUPS_PRINTER_IMPLICIT = 0x10000,	/* Implicit class @private@
+					 * @since Deprecated@ */
+  CUPS_PRINTER_DEFAULT = 0x20000,	/* Default printer on network */
+  CUPS_PRINTER_FAX = 0x40000,		/* Fax queue */
+  CUPS_PRINTER_REJECTING = 0x80000,	/* Printer is rejecting jobs */
+  CUPS_PRINTER_DELETE = 0x100000,	/* Delete printer
+					 * @deprecated@ @exclude all@ */
+  CUPS_PRINTER_NOT_SHARED = 0x200000,	/* Printer is not shared
+					 * @since CUPS 1.2/macOS 10.5@ */
+  CUPS_PRINTER_AUTHENTICATED = 0x400000,/* Printer requires authentication
+					 * @since CUPS 1.2/macOS 10.5@ */
+  CUPS_PRINTER_COMMANDS = 0x800000,	/* Printer supports maintenance commands
+					 * @since CUPS 1.2/macOS 10.5@ */
+  CUPS_PRINTER_DISCOVERED = 0x1000000,	/* Printer was discovered @since CUPS 1.2/macOS 10.5@ */
+  CUPS_PRINTER_SCANNER = 0x2000000,	/* Scanner-only device
+					 * @since CUPS 1.4/macOS 10.6@ @private@ */
+  CUPS_PRINTER_MFP = 0x4000000,		/* Printer with scanning capabilities
+					 * @since CUPS 1.4/macOS 10.6@ @private@ */
+  CUPS_PRINTER_3D = 0x8000000,		/* Printer with 3D capabilities @exclude all@ @private@ */
+  CUPS_PRINTER_OPTIONS = 0x6fffc	/* ~(CLASS | REMOTE | IMPLICIT |
+					 * DEFAULT | FAX | REJECTING | DELETE |
+					 * NOT_SHARED | AUTHENTICATED |
+					 * COMMANDS | DISCOVERED) @private@ */
+};
+
+typedef struct cups_option_s		/**** Printer Options ****/
+{
+  char		*name;			/* Name of option */
+  char		*value;			/* Value of option */
+} cups_option_t;
+
+typedef struct cups_dest_s		/**** Destination ****/
+{
+  char		*name,			/* Printer or class name */
+		*instance;		/* Local instance name or NULL */
+  int		is_default;		/* Is this printer the default? */
+  int		num_options;		/* Number of options */
+  cups_option_t	*options;		/* Options */
+} cups_dest_t;
+
+typedef struct _cups_dinfo_s cups_dinfo_t;
+					/* Destination capability and status
+					 * information @since CUPS 1.6/macOS 10.8@ */
+
+typedef struct cups_job_s		/**** Job ****/
+{
+  int		id;			/* The job ID */
+  char		*dest;			/* Printer or class name */
+  char		*title;			/* Title/job name */
+  char		*user;			/* User that submitted the job */
+  char		*format;		/* Document format */
+  ipp_jstate_t	state;			/* Job state */
+  int		size;			/* Size in kilobytes */
+  int		priority;		/* Priority (1-100) */
+  time_t	completed_time;		/* Time the job was completed */
+  time_t	creation_time;		/* Time the job was created */
+  time_t	processing_time;	/* Time the job was processed */
+} cups_job_t;
+
+typedef struct cups_size_s		/**** Media Size @since CUPS 1.6/macOS 10.8@ ****/
+{
+  char		media[128];		/* Media name to use */
+  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_size_t;
+
+typedef int (*cups_client_cert_cb_t)(http_t *http, void *tls,
+				     cups_array_t *distinguished_names,
+				     void *user_data);
+					/* Client credentials callback
+					 * @since CUPS 1.5/macOS 10.7@ */
+
+typedef int (*cups_dest_cb_t)(void *user_data, unsigned flags,
+			      cups_dest_t *dest);
+			      		/* Destination enumeration callback
+					 * @since CUPS 1.6/macOS 10.8@ */
+
+#  ifdef __BLOCKS__
+typedef int (^cups_dest_block_t)(unsigned flags, cups_dest_t *dest);
+			      		/* Destination enumeration block
+					 * @since CUPS 1.6/macOS 10.8@
+                                         * @exclude all@ */
+#  endif /* __BLOCKS__ */
+
+typedef const char *(*cups_password_cb_t)(const char *prompt);
+					/* Password callback @exclude all@ */
+
+typedef const char *(*cups_password_cb2_t)(const char *prompt, http_t *http,
+					   const char *method,
+					   const char *resource,
+					   void *user_data);
+					/* New password callback
+					 * @since CUPS 1.4/macOS 10.6@ */
+
+typedef int (*cups_server_cert_cb_t)(http_t *http, void *tls,
+				     cups_array_t *certs, void *user_data);
+					/* Server credentials callback
+					 * @since CUPS 1.5/macOS 10.7@ */
+
+
+/*
+ * Functions...
+ */
+
+extern int		cupsCancelJob(const char *name, int job_id) _CUPS_PUBLIC;
+extern ipp_t		*cupsDoFileRequest(http_t *http, ipp_t *request,
+			                   const char *resource,
+					   const char *filename) _CUPS_PUBLIC;
+extern ipp_t		*cupsDoRequest(http_t *http, ipp_t *request,
+			               const char *resource) _CUPS_PUBLIC;
+extern http_encryption_t cupsEncryption(void);
+extern void		cupsFreeJobs(int num_jobs, cups_job_t *jobs) _CUPS_PUBLIC;
+extern int		cupsGetClasses(char ***classes) _CUPS_DEPRECATED_MSG("Use cupsEnumDests instead.");
+extern const char	*cupsGetDefault(void) _CUPS_PUBLIC;
+extern int		cupsGetJobs(cups_job_t **jobs, const char *name,
+			            int myjobs, int whichjobs) _CUPS_PUBLIC;
+extern int		cupsGetPrinters(char ***printers) _CUPS_DEPRECATED_MSG("Use cupsEnumDests instead.");
+extern ipp_status_t	cupsLastError(void) _CUPS_PUBLIC;
+extern int		cupsPrintFile(const char *name, const char *filename,
+			              const char *title, int num_options,
+				      cups_option_t *options) _CUPS_PUBLIC;
+extern int		cupsPrintFiles(const char *name, int num_files,
+			               const char **files, const char *title,
+				       int num_options, cups_option_t *options) _CUPS_PUBLIC;
+extern char		*cupsTempFile(char *filename, int len) _CUPS_DEPRECATED_MSG("Use cupsTempFd or cupsTempFile2 instead.");
+extern int		cupsTempFd(char *filename, int len) _CUPS_PUBLIC;
+
+extern int		cupsAddDest(const char *name, const char *instance,
+			            int num_dests, cups_dest_t **dests) _CUPS_PUBLIC;
+extern void		cupsFreeDests(int num_dests, cups_dest_t *dests) _CUPS_PUBLIC;
+extern cups_dest_t	*cupsGetDest(const char *name, const char *instance,
+			             int num_dests, cups_dest_t *dests) _CUPS_PUBLIC;
+extern int		cupsGetDests(cups_dest_t **dests) _CUPS_PUBLIC;
+extern void		cupsSetDests(int num_dests, cups_dest_t *dests) _CUPS_PUBLIC;
+
+extern int		cupsAddOption(const char *name, const char *value,
+			              int num_options, cups_option_t **options) _CUPS_PUBLIC;
+extern void		cupsEncodeOptions(ipp_t *ipp, int num_options,
+					  cups_option_t *options) _CUPS_PUBLIC;
+extern void		cupsFreeOptions(int num_options,
+			                cups_option_t *options) _CUPS_PUBLIC;
+extern const char	*cupsGetOption(const char *name, int num_options,
+			               cups_option_t *options) _CUPS_PUBLIC;
+extern int		cupsParseOptions(const char *arg, int num_options,
+			                 cups_option_t **options) _CUPS_PUBLIC;
+
+extern const char	*cupsGetPassword(const char *prompt) _CUPS_PUBLIC;
+extern const char	*cupsServer(void) _CUPS_PUBLIC;
+extern void		cupsSetEncryption(http_encryption_t e) _CUPS_PUBLIC;
+extern void		cupsSetPasswordCB(cups_password_cb_t cb) _CUPS_PUBLIC;
+extern void		cupsSetServer(const char *server) _CUPS_PUBLIC;
+extern void		cupsSetUser(const char *user) _CUPS_PUBLIC;
+extern const char	*cupsUser(void) _CUPS_PUBLIC;
+
+/**** New in CUPS 1.1.20 ****/
+extern int		cupsDoAuthentication(http_t *http, const char *method,
+			                     const char *resource)
+			                     _CUPS_API_1_1_20;
+extern http_status_t	cupsGetFile(http_t *http, const char *resource,
+			            const char *filename) _CUPS_API_1_1_20;
+extern http_status_t	cupsGetFd(http_t *http, const char *resource, int fd) _CUPS_API_1_1_20;
+extern http_status_t	cupsPutFile(http_t *http, const char *resource,
+			            const char *filename) _CUPS_API_1_1_20;
+extern http_status_t	cupsPutFd(http_t *http, const char *resource, int fd)
+			          _CUPS_API_1_1_20;
+
+/**** New in CUPS 1.1.21 ****/
+extern const char	*cupsGetDefault2(http_t *http) _CUPS_API_1_1_21;
+extern int		cupsGetDests2(http_t *http, cups_dest_t **dests)
+			              _CUPS_API_1_1_21;
+extern int		cupsGetJobs2(http_t *http, cups_job_t **jobs,
+			             const char *name, int myjobs,
+				     int whichjobs) _CUPS_API_1_1_21;
+extern int		cupsPrintFile2(http_t *http, const char *name,
+			               const char *filename,
+				       const char *title, int num_options,
+				       cups_option_t *options) _CUPS_API_1_1_21;
+extern int		cupsPrintFiles2(http_t *http, const char *name,
+			                int num_files, const char **files,
+					const char *title, int num_options,
+					cups_option_t *options)
+					_CUPS_API_1_1_21;
+extern int		cupsSetDests2(http_t *http, int num_dests,
+			              cups_dest_t *dests) _CUPS_API_1_1_21;
+
+/**** New in CUPS 1.2/macOS 10.5 ****/
+extern void		cupsEncodeOptions2(ipp_t *ipp, int num_options,
+					   cups_option_t *options,
+					   ipp_tag_t group_tag) _CUPS_API_1_2;
+extern const char	*cupsLastErrorString(void) _CUPS_API_1_2;
+extern char		*cupsNotifySubject(cups_lang_t *lang, ipp_t *event)
+			                   _CUPS_API_1_2;
+extern char		*cupsNotifyText(cups_lang_t *lang, ipp_t *event)
+			                _CUPS_API_1_2;
+extern int		cupsRemoveOption(const char *name, int num_options,
+			                 cups_option_t **options) _CUPS_API_1_2;
+extern cups_file_t	*cupsTempFile2(char *filename, int len) _CUPS_API_1_2;
+
+/**** New in CUPS 1.3/macOS 10.5 ****/
+extern ipp_t		*cupsDoIORequest(http_t *http, ipp_t *request,
+			                 const char *resource, int infile,
+					 int outfile) _CUPS_API_1_3;
+extern int		cupsRemoveDest(const char *name,
+			               const char *instance,
+				       int num_dests, cups_dest_t **dests)
+				       _CUPS_API_1_3;
+extern void		cupsSetDefaultDest(const char *name,
+			                   const char *instance,
+					   int num_dests,
+					   cups_dest_t *dests) _CUPS_API_1_3;
+
+/**** New in CUPS 1.4/macOS 10.6 ****/
+extern ipp_status_t	cupsCancelJob2(http_t *http, const char *name,
+			               int job_id, int purge) _CUPS_API_1_4;
+extern int		cupsCreateJob(http_t *http, const char *name,
+				      const char *title, int num_options,
+				      cups_option_t *options) _CUPS_API_1_4;
+extern ipp_status_t	cupsFinishDocument(http_t *http,
+			                   const char *name) _CUPS_API_1_4;
+extern cups_dest_t	*cupsGetNamedDest(http_t *http, const char *name,
+			                  const char *instance) _CUPS_API_1_4;
+extern const char	*cupsGetPassword2(const char *prompt, http_t *http,
+					  const char *method,
+					  const char *resource) _CUPS_API_1_4;
+extern ipp_t		*cupsGetResponse(http_t *http,
+			                 const char *resource) _CUPS_API_1_4;
+extern ssize_t		cupsReadResponseData(http_t *http, char *buffer,
+			                     size_t length) _CUPS_API_1_4;
+extern http_status_t	cupsSendRequest(http_t *http, ipp_t *request,
+			                const char *resource,
+					size_t length) _CUPS_API_1_4;
+extern void		cupsSetPasswordCB2(cups_password_cb2_t cb,
+			                   void *user_data) _CUPS_API_1_4;
+extern http_status_t	cupsStartDocument(http_t *http, const char *name,
+			                  int job_id, const char *docname,
+					  const char *format,
+					  int last_document) _CUPS_API_1_4;
+extern http_status_t	cupsWriteRequestData(http_t *http, const char *buffer,
+			                     size_t length) _CUPS_API_1_4;
+
+/**** New in CUPS 1.5/macOS 10.7 ****/
+extern void		cupsSetClientCertCB(cups_client_cert_cb_t cb,
+					    void *user_data) _CUPS_API_1_5;
+extern int		cupsSetCredentials(cups_array_t *certs) _CUPS_API_1_5;
+extern void		cupsSetServerCertCB(cups_server_cert_cb_t cb,
+					    void *user_data) _CUPS_API_1_5;
+
+/**** New in CUPS 1.6/macOS 10.8 ****/
+extern ipp_status_t	cupsCancelDestJob(http_t *http, cups_dest_t *dest,
+			                  int job_id) _CUPS_API_1_6;
+extern int		cupsCheckDestSupported(http_t *http, cups_dest_t *dest,
+					       cups_dinfo_t *info,
+			                       const char *option,
+					       const char *value) _CUPS_API_1_6;
+extern ipp_status_t	cupsCloseDestJob(http_t *http, cups_dest_t *dest,
+			                 cups_dinfo_t *info, int job_id)
+			                 _CUPS_API_1_6;
+extern http_t		*cupsConnectDest(cups_dest_t *dest, unsigned flags,
+			                 int msec, int *cancel,
+					 char *resource, size_t resourcesize,
+					 cups_dest_cb_t cb, void *user_data)
+					 _CUPS_API_1_6;
+#  ifdef __BLOCKS__
+extern http_t		*cupsConnectDestBlock(cups_dest_t *dest,
+					      unsigned flags, int msec,
+					      int *cancel, char *resource,
+					      size_t resourcesize,
+					      cups_dest_block_t block)
+					      _CUPS_API_1_6;
+#  endif /* __BLOCKS__ */
+extern int		cupsCopyDest(cups_dest_t *dest, int num_dests,
+			             cups_dest_t **dests) _CUPS_API_1_6;
+extern cups_dinfo_t	*cupsCopyDestInfo(http_t *http, cups_dest_t *dest)
+					  _CUPS_API_1_6;
+extern int		cupsCopyDestConflicts(http_t *http, cups_dest_t *dest,
+					      cups_dinfo_t *info,
+					      int num_options,
+					      cups_option_t *options,
+					      const char *new_option,
+					      const char *new_value,
+					      int *num_conflicts,
+					      cups_option_t **conflicts,
+					      int *num_resolved,
+					      cups_option_t **resolved)
+					      _CUPS_API_1_6;
+extern ipp_status_t	cupsCreateDestJob(http_t *http, cups_dest_t *dest,
+					  cups_dinfo_t *info, int *job_id,
+					  const char *title, int num_options,
+			                  cups_option_t *options) _CUPS_API_1_6;
+extern int		cupsEnumDests(unsigned flags, int msec, int *cancel,
+				      cups_ptype_t type, cups_ptype_t mask,
+				      cups_dest_cb_t cb, void *user_data)
+				      _CUPS_API_1_6;
+#  ifdef __BLOCKS__
+extern int		cupsEnumDestsBlock(unsigned flags, int msec,
+					   int *cancel, cups_ptype_t type,
+					   cups_ptype_t mask,
+					   cups_dest_block_t block)
+					   _CUPS_API_1_6;
+#  endif /* __BLOCKS__ */
+extern ipp_status_t	cupsFinishDestDocument(http_t *http,
+			                       cups_dest_t *dest,
+			                       cups_dinfo_t *info)
+			                       _CUPS_API_1_6;
+extern void		cupsFreeDestInfo(cups_dinfo_t *dinfo) _CUPS_API_1_6;
+extern int		cupsGetDestMediaByName(http_t *http, cups_dest_t *dest,
+			                       cups_dinfo_t *dinfo,
+					       const char *media,
+					       unsigned flags,
+					       cups_size_t *size) _CUPS_API_1_6;
+extern int		cupsGetDestMediaBySize(http_t *http, cups_dest_t *dest,
+			                       cups_dinfo_t *dinfo,
+					       int width, int length,
+					       unsigned flags,
+					       cups_size_t *size) _CUPS_API_1_6;
+extern const char	*cupsLocalizeDestOption(http_t *http, cups_dest_t *dest,
+			                        cups_dinfo_t *info,
+			                        const char *option)
+			                        _CUPS_API_1_6;
+extern const char	*cupsLocalizeDestValue(http_t *http, cups_dest_t *dest,
+					       cups_dinfo_t *info,
+					       const char *option,
+					       const char *value)
+					       _CUPS_API_1_6;
+extern http_status_t	cupsStartDestDocument(http_t *http, cups_dest_t *dest,
+					      cups_dinfo_t *info, int job_id,
+					      const char *docname,
+					      const char *format,
+					      int num_options,
+					      cups_option_t *options,
+					      int last_document) _CUPS_API_1_6;
+
+/* New in CUPS 1.7 */
+extern ipp_attribute_t	*cupsFindDestDefault(http_t *http, cups_dest_t *dest,
+			                     cups_dinfo_t *dinfo,
+			                     const char *option) _CUPS_API_1_7;
+extern ipp_attribute_t	*cupsFindDestReady(http_t *http, cups_dest_t *dest,
+					   cups_dinfo_t *dinfo,
+					   const char *option) _CUPS_API_1_7;
+extern ipp_attribute_t	*cupsFindDestSupported(http_t *http, cups_dest_t *dest,
+			                       cups_dinfo_t *dinfo,
+			                       const char *option)
+			                       _CUPS_API_1_7;
+extern int		cupsGetDestMediaByIndex(http_t *http, cups_dest_t *dest,
+			                        cups_dinfo_t *dinfo, int n,
+			                        unsigned flags,
+			                        cups_size_t *size)
+			                        _CUPS_API_1_7;
+extern int		cupsGetDestMediaCount(http_t *http, cups_dest_t *dest,
+			                      cups_dinfo_t *dinfo,
+			                      unsigned flags) _CUPS_API_1_7;
+extern int		cupsGetDestMediaDefault(http_t *http, cups_dest_t *dest,
+			                        cups_dinfo_t *dinfo,
+			                        unsigned flags,
+			                        cups_size_t *size)
+			                        _CUPS_API_1_7;
+extern void		cupsSetUserAgent(const char *user_agent) _CUPS_API_1_7;
+extern const char	*cupsUserAgent(void) _CUPS_API_1_7;
+
+/* New in CUPS 2.0/macOS 10.10 */
+extern cups_dest_t	*cupsGetDestWithURI(const char *name, const char *uri) _CUPS_API_2_0;
+extern const char	*cupsLocalizeDestMedia(http_t *http, cups_dest_t *dest, cups_dinfo_t *info, unsigned flags, cups_size_t *size) _CUPS_API_2_0;
+extern int		cupsMakeServerCredentials(const char *path, const char *common_name, int num_alt_names, const char **alt_names, time_t expiration_date) _CUPS_API_2_0;
+extern int		cupsSetServerCredentials(const char *path, const char *common_name, int auto_create) _CUPS_API_2_0;
+
+/* New in CUPS 2.2/macOS 10.12 */
+extern ssize_t		cupsHashData(const char *algorithm, const void *data, size_t datalen, unsigned char *hash, size_t hashsize) _CUPS_API_2_2;
+
+/* New in CUPS 2.2.4 */
+extern int		cupsAddIntegerOption(const char *name, int value, int num_options, cups_option_t **options) _CUPS_API_2_2_4;
+extern int		cupsGetIntegerOption(const char *name, int num_options, cups_option_t *options) _CUPS_API_2_2_4;
+
+/* New in CUPS 2.2.7 */
+extern const char	*cupsHashString(const unsigned char *hash, size_t hashsize, char *buffer, size_t bufsize) _CUPS_API_2_2_7;
+
+/* New in CUPS 2.3 */
+extern int		cupsAddDestMediaOptions(http_t *http, cups_dest_t *dest, cups_dinfo_t *dinfo, unsigned flags, cups_size_t *size, int num_options, cups_option_t **options) _CUPS_API_2_3;
+extern ipp_attribute_t	*cupsEncodeOption(ipp_t *ipp, ipp_tag_t group_tag, const char *name, const char *value) _CUPS_API_2_3;
+
+#  ifdef __cplusplus
+}
+#  endif /* __cplusplus */
+
+#endif /* !_CUPS_CUPS_H_ */
diff --git a/third_party/cups/include/cups/file.h b/third_party/cups/include/cups/file.h
new file mode 100644
index 0000000000..49ca58a0c4
--- /dev/null
+++ b/third_party/cups/include/cups/file.h
@@ -0,0 +1,94 @@
+/*
+ * Public file definitions for CUPS.
+ *
+ * Since stdio files max out at 256 files on many systems, we have to
+ * write similar functions without this limit.  At the same time, using
+ * our own file functions allows us to provide transparent support of
+ * different line endings, gzip'd print files, PPD files, etc.
+ *
+ * Copyright © 2007-2018 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_FILE_H_
+#  define _CUPS_FILE_H_
+
+
+/*
+ * Include necessary headers...
+ */
+
+#  include "versioning.h"
+#  include <stddef.h>
+#  include <sys/types.h>
+#  if defined(_WIN32) && !defined(__CUPS_SSIZE_T_DEFINED)
+#    define __CUPS_SSIZE_T_DEFINED
+/* Windows does not support the ssize_t type, so map it to off_t... */
+typedef off_t ssize_t;			/* @private@ */
+#  endif /* _WIN32 && !__CUPS_SSIZE_T_DEFINED */
+
+
+/*
+ * C++ magic...
+ */
+
+#  ifdef __cplusplus
+extern "C" {
+#  endif /* __cplusplus */
+
+
+/*
+ * CUPS file definitions...
+ */
+
+#  define CUPS_FILE_NONE	0	/* No compression */
+#  define CUPS_FILE_GZIP	1	/* GZIP compression */
+
+
+/*
+ * Types and structures...
+ */
+
+typedef struct _cups_file_s cups_file_t;/**** CUPS file type ****/
+
+
+/*
+ * Prototypes...
+ */
+
+extern int		cupsFileClose(cups_file_t *fp) _CUPS_API_1_2;
+extern int		cupsFileCompression(cups_file_t *fp) _CUPS_API_1_2;
+extern int		cupsFileEOF(cups_file_t *fp) _CUPS_API_1_2;
+extern const char	*cupsFileFind(const char *filename, const char *path, int executable, char *buffer, int bufsize) _CUPS_API_1_2;
+extern int		cupsFileFlush(cups_file_t *fp) _CUPS_API_1_2;
+extern int		cupsFileGetChar(cups_file_t *fp) _CUPS_API_1_2;
+extern char		*cupsFileGetConf(cups_file_t *fp, char *buf, size_t buflen, char **value, int *linenum) _CUPS_API_1_2;
+extern size_t		cupsFileGetLine(cups_file_t *fp, char *buf, size_t buflen) _CUPS_API_1_2;
+extern char		*cupsFileGets(cups_file_t *fp, char *buf, size_t buflen) _CUPS_API_1_2;
+extern int		cupsFileLock(cups_file_t *fp, int block) _CUPS_API_1_2;
+extern int		cupsFileNumber(cups_file_t *fp) _CUPS_API_1_2;
+extern cups_file_t	*cupsFileOpen(const char *filename, const char *mode) _CUPS_API_1_2;
+extern cups_file_t	*cupsFileOpenFd(int fd, const char *mode) _CUPS_API_1_2;
+extern int		cupsFilePeekChar(cups_file_t *fp) _CUPS_API_1_2;
+extern int		cupsFilePrintf(cups_file_t *fp, const char *format, ...) _CUPS_FORMAT(2, 3) _CUPS_API_1_2;
+extern int		cupsFilePutChar(cups_file_t *fp, int c) _CUPS_API_1_2;
+extern ssize_t		cupsFilePutConf(cups_file_t *fp, const char *directive, const char *value) _CUPS_API_1_4;
+extern int		cupsFilePuts(cups_file_t *fp, const char *s) _CUPS_API_1_2;
+extern ssize_t		cupsFileRead(cups_file_t *fp, char *buf, size_t bytes) _CUPS_API_1_2;
+extern off_t		cupsFileRewind(cups_file_t *fp) _CUPS_API_1_2;
+extern off_t		cupsFileSeek(cups_file_t *fp, off_t pos) _CUPS_API_1_2;
+extern cups_file_t	*cupsFileStderr(void) _CUPS_API_1_2;
+extern cups_file_t	*cupsFileStdin(void) _CUPS_API_1_2;
+extern cups_file_t	*cupsFileStdout(void) _CUPS_API_1_2;
+extern off_t		cupsFileTell(cups_file_t *fp) _CUPS_API_1_2;
+extern int		cupsFileUnlock(cups_file_t *fp) _CUPS_API_1_2;
+extern ssize_t		cupsFileWrite(cups_file_t *fp, const char *buf, size_t bytes) _CUPS_API_1_2;
+
+
+#  ifdef __cplusplus
+}
+#  endif /* __cplusplus */
+#endif /* !_CUPS_FILE_H_ */
diff --git a/third_party/cups/include/cups/http.h b/third_party/cups/include/cups/http.h
new file mode 100644
index 0000000000..01a0321dfa
--- /dev/null
+++ b/third_party/cups/include/cups/http.h
@@ -0,0 +1,593 @@
+/*
+ * Hyper-Text Transport Protocol definitions for CUPS.
+ *
+ * Copyright © 2007-2018 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_HTTP_H_
+#  define _CUPS_HTTP_H_
+
+/*
+ * Include necessary headers...
+ */
+
+#  include "versioning.h"
+#  include "array.h"
+#  include <string.h>
+#  include <time.h>
+#  include <sys/types.h>
+#  ifdef _WIN32
+#    ifndef __CUPS_SSIZE_T_DEFINED
+#      define __CUPS_SSIZE_T_DEFINED
+/* Windows does not support the ssize_t type, so map it to off_t... */
+typedef off_t ssize_t;			/* @private@ */
+#    endif /* !__CUPS_SSIZE_T_DEFINED */
+#    include <winsock2.h>
+#    include <ws2tcpip.h>
+#  else
+#    include <unistd.h>
+#    include <sys/time.h>
+#    include <sys/socket.h>
+#    include <netdb.h>
+#    include <netinet/in.h>
+#    include <arpa/inet.h>
+#    include <netinet/in_systm.h>
+#    include <netinet/ip.h>
+#    if !defined(__APPLE__) || !defined(TCP_NODELAY)
+#      include <netinet/tcp.h>
+#    endif /* !__APPLE__ || !TCP_NODELAY */
+#    if defined(AF_UNIX) && !defined(AF_LOCAL)
+#      define AF_LOCAL AF_UNIX		/* Older UNIX's have old names... */
+#    endif /* AF_UNIX && !AF_LOCAL */
+#    ifdef AF_LOCAL
+#      include <sys/un.h>
+#    endif /* AF_LOCAL */
+#    if defined(LOCAL_PEERCRED) && !defined(SO_PEERCRED)
+#      define SO_PEERCRED LOCAL_PEERCRED
+#    endif /* LOCAL_PEERCRED && !SO_PEERCRED */
+#  endif /* _WIN32 */
+
+
+/*
+ * C++ magic...
+ */
+
+#  ifdef __cplusplus
+extern "C" {
+#  endif /* __cplusplus */
+
+
+/*
+ * Oh, the wonderful world of IPv6 compatibility.  Apparently some
+ * implementations expose the (more logical) 32-bit address parts
+ * to everyone, while others only expose it to kernel code...  To
+ * make supporting IPv6 even easier, each vendor chose different
+ * core structure and union names, so the same defines or code
+ * can't be used on all platforms.
+ *
+ * The following will likely need tweaking on new platforms that
+ * support IPv6 - the "s6_addr32" define maps to the 32-bit integer
+ * array in the in6_addr union, which is named differently on various
+ * platforms.
+ */
+
+#if defined(AF_INET6) && !defined(s6_addr32)
+#  if defined(__sun)
+#    define s6_addr32	_S6_un._S6_u32
+#  elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)|| defined(__DragonFly__)
+#    define s6_addr32	__u6_addr.__u6_addr32
+#  elif defined(_WIN32)
+/*
+ * Windows only defines byte and 16-bit word members of the union and
+ * requires special casing of all raw address code...
+ */
+#    define s6_addr32	error_need_win32_specific_code
+#  endif /* __sun */
+#endif /* AF_INET6 && !s6_addr32 */
+
+
+/*
+ * Limits...
+ */
+
+#  define HTTP_MAX_URI		1024	/* Max length of URI string */
+#  define HTTP_MAX_HOST		256	/* Max length of hostname string */
+#  define HTTP_MAX_BUFFER	2048	/* Max length of data buffer */
+#  define HTTP_MAX_VALUE	256	/* Max header field value length */
+
+
+/*
+ * Types and structures...
+ */
+
+typedef enum http_auth_e		/**** HTTP authentication types @exclude all@ ****/
+{
+  HTTP_AUTH_NONE,			/* No authentication in use */
+  HTTP_AUTH_BASIC,			/* Basic authentication in use */
+  HTTP_AUTH_MD5,			/* Digest authentication in use */
+  HTTP_AUTH_MD5_SESS,			/* MD5-session authentication in use */
+  HTTP_AUTH_MD5_INT,			/* Digest authentication in use for body */
+  HTTP_AUTH_MD5_SESS_INT,		/* MD5-session authentication in use for body */
+  HTTP_AUTH_NEGOTIATE			/* GSSAPI authentication in use @since CUPS 1.3/macOS 10.5@ */
+} http_auth_t;
+
+typedef enum http_encoding_e		/**** HTTP transfer encoding values ****/
+{
+  HTTP_ENCODING_LENGTH,			/* Data is sent with Content-Length */
+  HTTP_ENCODING_CHUNKED,		/* Data is chunked */
+  HTTP_ENCODING_FIELDS			/* Sending HTTP fields */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define HTTP_ENCODE_LENGTH	HTTP_ENCODING_LENGTH
+#    define HTTP_ENCODE_CHUNKED	HTTP_ENCODING_CHUNKED
+#    define HTTP_ENCODE_FIELDS	HTTP_ENCODING_FIELDS
+#  endif /* !_CUPS_NO_DEPRECATED */
+} http_encoding_t;
+
+typedef enum http_encryption_e		/**** HTTP encryption values ****/
+{
+  HTTP_ENCRYPTION_IF_REQUESTED,		/* Encrypt if requested (TLS upgrade) */
+  HTTP_ENCRYPTION_NEVER,		/* Never encrypt */
+  HTTP_ENCRYPTION_REQUIRED,		/* Encryption is required (TLS upgrade) */
+  HTTP_ENCRYPTION_ALWAYS		/* Always encrypt (SSL) */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define HTTP_ENCRYPT_IF_REQUESTED	HTTP_ENCRYPTION_IF_REQUESTED
+#    define HTTP_ENCRYPT_NEVER		HTTP_ENCRYPTION_NEVER
+#    define HTTP_ENCRYPT_REQUIRED	HTTP_ENCRYPTION_REQUIRED
+#    define HTTP_ENCRYPT_ALWAYS		HTTP_ENCRYPTION_ALWAYS
+#  endif /* !_CUPS_NO_DEPRECATED */
+} http_encryption_t;
+
+typedef enum http_field_e		/**** HTTP field names ****/
+{
+  HTTP_FIELD_UNKNOWN = -1,		/* Unknown field */
+  HTTP_FIELD_ACCEPT_LANGUAGE,		/* Accept-Language field */
+  HTTP_FIELD_ACCEPT_RANGES,		/* Accept-Ranges field */
+  HTTP_FIELD_AUTHORIZATION,		/* Authorization field */
+  HTTP_FIELD_CONNECTION,		/* Connection field */
+  HTTP_FIELD_CONTENT_ENCODING,		/* Content-Encoding field */
+  HTTP_FIELD_CONTENT_LANGUAGE,		/* Content-Language field */
+  HTTP_FIELD_CONTENT_LENGTH,		/* Content-Length field */
+  HTTP_FIELD_CONTENT_LOCATION,		/* Content-Location field */
+  HTTP_FIELD_CONTENT_MD5,		/* Content-MD5 field */
+  HTTP_FIELD_CONTENT_RANGE,		/* Content-Range field */
+  HTTP_FIELD_CONTENT_TYPE,		/* Content-Type field */
+  HTTP_FIELD_CONTENT_VERSION,		/* Content-Version field */
+  HTTP_FIELD_DATE,			/* Date field */
+  HTTP_FIELD_HOST,			/* Host field */
+  HTTP_FIELD_IF_MODIFIED_SINCE,		/* If-Modified-Since field */
+  HTTP_FIELD_IF_UNMODIFIED_SINCE,	/* If-Unmodified-Since field */
+  HTTP_FIELD_KEEP_ALIVE,		/* Keep-Alive field */
+  HTTP_FIELD_LAST_MODIFIED,		/* Last-Modified field */
+  HTTP_FIELD_LINK,			/* Link field */
+  HTTP_FIELD_LOCATION,			/* Location field */
+  HTTP_FIELD_RANGE,			/* Range field */
+  HTTP_FIELD_REFERER,			/* Referer field */
+  HTTP_FIELD_RETRY_AFTER,		/* Retry-After field */
+  HTTP_FIELD_TRANSFER_ENCODING,		/* Transfer-Encoding field */
+  HTTP_FIELD_UPGRADE,			/* Upgrade field */
+  HTTP_FIELD_USER_AGENT,		/* User-Agent field */
+  HTTP_FIELD_WWW_AUTHENTICATE,		/* WWW-Authenticate field */
+  HTTP_FIELD_ACCEPT_ENCODING,		/* Accepting-Encoding field @since CUPS 1.7/macOS 10.9@ */
+  HTTP_FIELD_ALLOW,			/* Allow field @since CUPS 1.7/macOS 10.9@ */
+  HTTP_FIELD_SERVER,			/* Server field @since CUPS 1.7/macOS 10.9@ */
+  HTTP_FIELD_AUTHENTICATION_INFO,	/* Authentication-Info field (@since CUPS 2.2.9) */
+  HTTP_FIELD_MAX			/* Maximum field index */
+} http_field_t;
+
+typedef enum http_keepalive_e		/**** HTTP keep-alive values ****/
+{
+  HTTP_KEEPALIVE_OFF = 0,		/* No keep alive support */
+  HTTP_KEEPALIVE_ON			/* Use keep alive */
+} http_keepalive_t;
+
+typedef enum http_state_e		/**** HTTP state values; states
+					 **** are server-oriented...
+					 ****/
+{
+  HTTP_STATE_ERROR = -1,		/* Error on socket */
+  HTTP_STATE_WAITING,			/* Waiting for command */
+  HTTP_STATE_OPTIONS,			/* OPTIONS command, waiting for blank line */
+  HTTP_STATE_GET,			/* GET command, waiting for blank line */
+  HTTP_STATE_GET_SEND,			/* GET command, sending data */
+  HTTP_STATE_HEAD,			/* HEAD command, waiting for blank line */
+  HTTP_STATE_POST,			/* POST command, waiting for blank line */
+  HTTP_STATE_POST_RECV,			/* POST command, receiving data */
+  HTTP_STATE_POST_SEND,			/* POST command, sending data */
+  HTTP_STATE_PUT,			/* PUT command, waiting for blank line */
+  HTTP_STATE_PUT_RECV,			/* PUT command, receiving data */
+  HTTP_STATE_DELETE,			/* DELETE command, waiting for blank line */
+  HTTP_STATE_TRACE,			/* TRACE command, waiting for blank line */
+  HTTP_STATE_CONNECT,			/* CONNECT command, waiting for blank line */
+  HTTP_STATE_STATUS,			/* Command complete, sending status */
+  HTTP_STATE_UNKNOWN_METHOD,		/* Unknown request method, waiting for blank line @since CUPS 1.7/macOS 10.9@ */
+  HTTP_STATE_UNKNOWN_VERSION		/* Unknown request method, waiting for blank line @since CUPS 1.7/macOS 10.9@ */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define HTTP_WAITING	HTTP_STATE_WAITING
+#    define HTTP_OPTIONS	HTTP_STATE_OPTIONS
+#    define HTTP_GET		HTTP_STATE_GET
+#    define HTTP_GET_SEND	HTTP_STATE_GET_SEND
+#    define HTTP_HEAD		HTTP_STATE_HEAD
+#    define HTTP_POST		HTTP_STATE_POST
+#    define HTTP_POST_RECV	HTTP_STATE_POST_RECV
+#    define HTTP_POST_SEND	HTTP_STATE_POST_SEND
+#    define HTTP_PUT		HTTP_STATE_PUT
+#    define HTTP_PUT_RECV	HTTP_STATE_PUT_RECV
+#    define HTTP_DELETE		HTTP_STATE_DELETE
+#    define HTTP_TRACE		HTTP_STATE_TRACE
+#    define HTTP_CLOSE		HTTP_STATE_CONNECT
+#    define HTTP_STATUS		HTTP_STATE_STATUS
+#  endif /* !_CUPS_NO_DEPRECATED */
+} http_state_t;
+
+typedef enum http_status_e		/**** HTTP status codes ****/
+{
+  HTTP_STATUS_ERROR = -1,		/* An error response from httpXxxx() */
+  HTTP_STATUS_NONE = 0,			/* No Expect value @since CUPS 1.7/macOS 10.9@ */
+
+  HTTP_STATUS_CONTINUE = 100,		/* Everything OK, keep going... */
+  HTTP_STATUS_SWITCHING_PROTOCOLS,	/* HTTP upgrade to TLS/SSL */
+
+  HTTP_STATUS_OK = 200,			/* OPTIONS/GET/HEAD/POST/TRACE command was successful */
+  HTTP_STATUS_CREATED,			/* PUT command was successful */
+  HTTP_STATUS_ACCEPTED,			/* DELETE command was successful */
+  HTTP_STATUS_NOT_AUTHORITATIVE,	/* Information isn't authoritative */
+  HTTP_STATUS_NO_CONTENT,		/* Successful command, no new data */
+  HTTP_STATUS_RESET_CONTENT,		/* Content was reset/recreated */
+  HTTP_STATUS_PARTIAL_CONTENT,		/* Only a partial file was received/sent */
+
+  HTTP_STATUS_MULTIPLE_CHOICES = 300,	/* Multiple files match request */
+  HTTP_STATUS_MOVED_PERMANENTLY,	/* Document has moved permanently */
+  HTTP_STATUS_FOUND,			/* Document was found at a different URI */
+  HTTP_STATUS_SEE_OTHER,		/* See this other link */
+  HTTP_STATUS_NOT_MODIFIED,		/* File not modified */
+  HTTP_STATUS_USE_PROXY,		/* Must use a proxy to access this URI */
+  HTTP_STATUS_TEMPORARY_REDIRECT = 307,	/* Temporary redirection */
+
+  HTTP_STATUS_BAD_REQUEST = 400,	/* Bad request */
+  HTTP_STATUS_UNAUTHORIZED,		/* Unauthorized to access host */
+  HTTP_STATUS_PAYMENT_REQUIRED,		/* Payment required */
+  HTTP_STATUS_FORBIDDEN,		/* Forbidden to access this URI */
+  HTTP_STATUS_NOT_FOUND,		/* URI was not found */
+  HTTP_STATUS_METHOD_NOT_ALLOWED,	/* Method is not allowed */
+  HTTP_STATUS_NOT_ACCEPTABLE,		/* Not Acceptable */
+  HTTP_STATUS_PROXY_AUTHENTICATION,	/* Proxy Authentication is Required */
+  HTTP_STATUS_REQUEST_TIMEOUT,		/* Request timed out */
+  HTTP_STATUS_CONFLICT,			/* Request is self-conflicting */
+  HTTP_STATUS_GONE,			/* Server has gone away */
+  HTTP_STATUS_LENGTH_REQUIRED,		/* A content length or encoding is required */
+  HTTP_STATUS_PRECONDITION,		/* Precondition failed */
+  HTTP_STATUS_REQUEST_TOO_LARGE,	/* Request entity too large */
+  HTTP_STATUS_URI_TOO_LONG,		/* URI too long */
+  HTTP_STATUS_UNSUPPORTED_MEDIATYPE,	/* The requested media type is unsupported */
+  HTTP_STATUS_REQUESTED_RANGE,		/* The requested range is not satisfiable */
+  HTTP_STATUS_EXPECTATION_FAILED,	/* The expectation given in an Expect header field was not met */
+  HTTP_STATUS_UPGRADE_REQUIRED = 426,	/* Upgrade to SSL/TLS required */
+
+  HTTP_STATUS_SERVER_ERROR = 500,	/* Internal server error */
+  HTTP_STATUS_NOT_IMPLEMENTED,		/* Feature not implemented */
+  HTTP_STATUS_BAD_GATEWAY,		/* Bad gateway */
+  HTTP_STATUS_SERVICE_UNAVAILABLE,	/* Service is unavailable */
+  HTTP_STATUS_GATEWAY_TIMEOUT,		/* Gateway connection timed out */
+  HTTP_STATUS_NOT_SUPPORTED,		/* HTTP version not supported */
+
+  HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED = 1000,
+					/* User canceled authorization @since CUPS 1.4@ */
+  HTTP_STATUS_CUPS_PKI_ERROR,		/* Error negotiating a secure connection @since CUPS 1.5/macOS 10.7@ */
+  HTTP_STATUS_CUPS_WEBIF_DISABLED	/* Web interface is disabled @private@ */
+
+#  define HTTP_STATUS_MOVED_TEMPORARILY HTTP_STATUS_FOUND /* Renamed in RFC 7231 */
+
+#  ifndef _CUPS_NO_DEPRECATED
+/* Old names for this enumeration */
+#    define HTTP_ERROR			HTTP_STATUS_ERROR
+
+#    define HTTP_CONTINUE		HTTP_STATUS_CONTINUE
+#    define HTTP_SWITCHING_PROTOCOLS	HTTP_STATUS_SWITCHING_PROTOCOLS
+
+#    define HTTP_OK			HTTP_STATUS_OK
+#    define HTTP_CREATED		HTTP_STATUS_CREATED
+#    define HTTP_ACCEPTED		HTTP_STATUS_ACCEPTED
+#    define HTTP_NOT_AUTHORITATIVE	HTTP_STATUS_NOT_AUTHORITATIVE
+#    define HTTP_NO_CONTENT		HTTP_STATUS_NO_CONTENT
+#    define HTTP_RESET_CONTENT		HTTP_STATUS_RESET_CONTENT
+#    define HTTP_PARTIAL_CONTENT	HTTP_STATUS_PARTIAL_CONTENT
+
+#    define HTTP_MULTIPLE_CHOICES	HTTP_STATUS_MULTIPLE_CHOICES
+#    define HTTP_MOVED_PERMANENTLY	HTTP_STATUS_MOVED_PERMANENTLY
+#    define HTTP_MOVED_TEMPORARILY	HTTP_STATUS_MOVED_TEMPORARILY
+#    define HTTP_SEE_OTHER		HTTP_STATUS_SEE_OTHER
+#    define HTTP_NOT_MODIFIED		HTTP_STATUS_NOT_MODIFIED
+#    define HTTP_USE_PROXY		HTTP_STATUS_USE_PROXY
+
+#    define HTTP_BAD_REQUEST		HTTP_STATUS_BAD_REQUEST
+#    define HTTP_UNAUTHORIZED		HTTP_STATUS_UNAUTHORIZED
+#    define HTTP_PAYMENT_REQUIRED	HTTP_STATUS_PAYMENT_REQUIRED
+#    define HTTP_FORBIDDEN		HTTP_STATUS_FORBIDDEN
+#    define HTTP_NOT_FOUND		HTTP_STATUS_NOT_FOUND
+#    define HTTP_METHOD_NOT_ALLOWED	HTTP_STATUS_METHOD_NOT_ALLOWED
+#    define HTTP_NOT_ACCEPTABLE		HTTP_STATUS_NOT_ACCEPTABLE
+#    define HTTP_PROXY_AUTHENTICATION	HTTP_STATUS_PROXY_AUTHENTICATION
+#    define HTTP_REQUEST_TIMEOUT	HTTP_STATUS_REQUEST_TIMEOUT
+#    define HTTP_CONFLICT		HTTP_STATUS_CONFLICT
+#    define HTTP_GONE			HTTP_STATUS_GONE
+#    define HTTP_LENGTH_REQUIRED	HTTP_STATUS_LENGTH_REQUIRED
+#    define HTTP_PRECONDITION		HTTP_STATUS_PRECONDITION
+#    define HTTP_REQUEST_TOO_LARGE	HTTP_STATUS_REQUEST_TOO_LARGE
+#    define HTTP_URI_TOO_LONG		HTTP_STATUS_URI_TOO_LONG
+#    define HTTP_UNSUPPORTED_MEDIATYPE	HTTP_STATUS_UNSUPPORTED_MEDIATYPE
+#    define HTTP_REQUESTED_RANGE	HTTP_STATUS_REQUESTED_RANGE
+#    define HTTP_EXPECTATION_FAILED	HTTP_STATUS_EXPECTATION_FAILED
+#    define HTTP_UPGRADE_REQUIRED	HTTP_STATUS_UPGRADE_REQUIRED
+
+#    define HTTP_SERVER_ERROR		HTTP_STATUS_SERVER_ERROR
+#    define HTTP_NOT_IMPLEMENTED	HTTP_STATUS_NOT_IMPLEMENTED
+#    define HTTP_BAD_GATEWAY		HTTP_STATUS_BAD_GATEWAY
+#    define HTTP_SERVICE_UNAVAILABLE	HTTP_STATUS_SERVICE_UNAVAILABLE
+#    define HTTP_GATEWAY_TIMEOUT	HTTP_STATUS_GATEWAY_TIMEOUT
+#    define HTTP_NOT_SUPPORTED		HTTP_STATUS_NOT_SUPPORTED
+
+#    define HTTP_AUTHORIZATION_CANCELED	HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED
+#    define HTTP_PKI_ERROR		HTTP_STATUS_CUPS_PKI_ERROR
+#    define HTTP_WEBIF_DISABLED		HTTP_STATUS_CUPS_WEBIF_DISABLED
+#  endif /* !_CUPS_NO_DEPRECATED */
+} http_status_t;
+
+typedef enum http_trust_e		/**** Level of trust for credentials @since CUPS 2.0/OS 10.10@ */
+{
+  HTTP_TRUST_OK = 0,			/* Credentials are OK/trusted */
+  HTTP_TRUST_INVALID,			/* Credentials are invalid */
+  HTTP_TRUST_CHANGED,			/* Credentials have changed */
+  HTTP_TRUST_EXPIRED,			/* Credentials are expired */
+  HTTP_TRUST_RENEWED,			/* Credentials have been renewed */
+  HTTP_TRUST_UNKNOWN,			/* Credentials are unknown/new */
+} http_trust_t;
+
+typedef enum http_uri_status_e		/**** URI separation status @since CUPS 1.2@ ****/
+{
+  HTTP_URI_STATUS_OVERFLOW = -8,	/* URI buffer for httpAssembleURI is too small */
+  HTTP_URI_STATUS_BAD_ARGUMENTS = -7,	/* Bad arguments to function (error) */
+  HTTP_URI_STATUS_BAD_RESOURCE = -6,	/* Bad resource in URI (error) */
+  HTTP_URI_STATUS_BAD_PORT = -5,	/* Bad port number in URI (error) */
+  HTTP_URI_STATUS_BAD_HOSTNAME = -4,	/* Bad hostname in URI (error) */
+  HTTP_URI_STATUS_BAD_USERNAME = -3,	/* Bad username in URI (error) */
+  HTTP_URI_STATUS_BAD_SCHEME = -2,	/* Bad scheme in URI (error) */
+  HTTP_URI_STATUS_BAD_URI = -1,		/* Bad/empty URI (error) */
+  HTTP_URI_STATUS_OK = 0,		/* URI decoded OK */
+  HTTP_URI_STATUS_MISSING_SCHEME,	/* Missing scheme in URI (warning) */
+  HTTP_URI_STATUS_UNKNOWN_SCHEME,	/* Unknown scheme in URI (warning) */
+  HTTP_URI_STATUS_MISSING_RESOURCE	/* Missing resource in URI (warning) */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define HTTP_URI_OVERFLOW		HTTP_URI_STATUS_OVERFLOW
+#    define HTTP_URI_BAD_ARGUMENTS	HTTP_URI_STATUS_BAD_ARGUMENTS
+#    define HTTP_URI_BAD_RESOURCE	HTTP_URI_STATUS_BAD_RESOURCE
+#    define HTTP_URI_BAD_PORT		HTTP_URI_STATUS_BAD_PORT
+#    define HTTP_URI_BAD_HOSTNAME	HTTP_URI_STATUS_BAD_HOSTNAME
+#    define HTTP_URI_BAD_USERNAME	HTTP_URI_STATUS_BAD_USERNAME
+#    define HTTP_URI_BAD_SCHEME		HTTP_URI_STATUS_BAD_SCHEME
+#    define HTTP_URI_BAD_URI		HTTP_URI_STATUS_BAD_URI
+#    define HTTP_URI_OK			HTTP_URI_STATUS_OK
+#    define HTTP_URI_MISSING_SCHEME	HTTP_URI_STATUS_MISSING_SCHEME
+#    define HTTP_URI_UNKNOWN_SCHEME	HTTP_URI_STATUS_UNKNOWN_SCHEME
+#    define HTTP_URI_MISSING_RESOURCE	HTTP_URI_STATUS_MISSING_RESOURCE
+#  endif /* !_CUPS_NO_DEPRECATED */
+} http_uri_status_t;
+
+typedef enum http_uri_coding_e		/**** URI en/decode flags ****/
+{
+  HTTP_URI_CODING_NONE = 0,		/* Don't en/decode anything */
+  HTTP_URI_CODING_USERNAME = 1,		/* En/decode the username portion */
+  HTTP_URI_CODING_HOSTNAME = 2,		/* En/decode the hostname portion */
+  HTTP_URI_CODING_RESOURCE = 4,		/* En/decode the resource portion */
+  HTTP_URI_CODING_MOST = 7,		/* En/decode all but the query */
+  HTTP_URI_CODING_QUERY = 8,		/* En/decode the query portion */
+  HTTP_URI_CODING_ALL = 15,		/* En/decode everything */
+  HTTP_URI_CODING_RFC6874 = 16		/* Use RFC 6874 address format */
+} http_uri_coding_t;
+
+typedef enum http_version_e		/**** HTTP version numbers @exclude all@ ****/
+{
+  HTTP_VERSION_0_9 = 9,			/* HTTP/0.9 */
+  HTTP_VERSION_1_0 = 100,		/* HTTP/1.0 */
+  HTTP_VERSION_1_1 = 101		/* HTTP/1.1 */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define HTTP_0_9	HTTP_VERSION_0_9
+#    define HTTP_1_0	HTTP_VERSION_1_0
+#    define HTTP_1_1	HTTP_VERSION_1_1
+#  endif /* !_CUPS_NO_DEPRECATED */
+} http_version_t;
+
+typedef union _http_addr_u		/**** Socket address union, which
+					 **** makes using IPv6 and other
+					 **** address types easier and
+					 **** more portable. @since CUPS 1.2/macOS 10.5@
+					 ****/
+{
+  struct sockaddr	addr;		/* Base structure for family value */
+  struct sockaddr_in	ipv4;		/* IPv4 address */
+#ifdef AF_INET6
+  struct sockaddr_in6	ipv6;		/* IPv6 address */
+#endif /* AF_INET6 */
+#ifdef AF_LOCAL
+  struct sockaddr_un	un;		/* Domain socket file */
+#endif /* AF_LOCAL */
+  char			pad[256];	/* Padding to ensure binary compatibility */
+} http_addr_t;
+
+typedef struct http_addrlist_s		/**** Socket address list, which is
+					 **** used to enumerate all of the
+					 **** addresses that are associated
+					 **** with a hostname. @since CUPS 1.2/macOS 10.5@
+                                         **** @exclude all@
+					 ****/
+{
+  struct http_addrlist_s *next;		/* Pointer to next address in list */
+  http_addr_t		addr;		/* Address */
+} http_addrlist_t;
+
+typedef struct _http_s http_t;		/**** HTTP connection type ****/
+
+typedef struct http_credential_s	/**** HTTP credential data @since CUPS 1.5/macOS 10.7@ @exclude all@ ****/
+{
+  void		*data;			/* Pointer to credential data */
+  size_t	datalen;		/* Credential length */
+} http_credential_t;
+
+typedef int (*http_timeout_cb_t)(http_t *http, void *user_data);
+					/**** HTTP timeout callback @since CUPS 1.5/macOS 10.7@ ****/
+
+
+
+/*
+ * Prototypes...
+ */
+
+extern void		httpBlocking(http_t *http, int b) _CUPS_PUBLIC;
+extern int		httpCheck(http_t *http) _CUPS_PUBLIC;
+extern void		httpClearFields(http_t *http) _CUPS_PUBLIC;
+extern void		httpClose(http_t *http) _CUPS_PUBLIC;
+extern http_t		*httpConnect(const char *host, int port) _CUPS_DEPRECATED_1_7_MSG("Use httpConnect2 instead.");
+extern http_t		*httpConnectEncrypt(const char *host, int port, http_encryption_t encryption) _CUPS_DEPRECATED_1_7_MSG("Use httpConnect2 instead.");
+extern int		httpDelete(http_t *http, const char *uri) _CUPS_PUBLIC;
+extern int		httpEncryption(http_t *http, http_encryption_t e) _CUPS_PUBLIC;
+extern int		httpError(http_t *http) _CUPS_PUBLIC;
+extern void		httpFlush(http_t *http) _CUPS_PUBLIC;
+extern int		httpGet(http_t *http, const char *uri) _CUPS_PUBLIC;
+extern char		*httpGets(char *line, int length, http_t *http) _CUPS_PUBLIC;
+extern const char	*httpGetDateString(time_t t) _CUPS_PUBLIC;
+extern time_t		httpGetDateTime(const char *s) _CUPS_PUBLIC;
+extern const char	*httpGetField(http_t *http, http_field_t field) _CUPS_PUBLIC;
+extern struct hostent	*httpGetHostByName(const char *name) _CUPS_PUBLIC;
+extern char		*httpGetSubField(http_t *http, http_field_t field, const char *name, char *value) _CUPS_PUBLIC;
+extern int		httpHead(http_t *http, const char *uri) _CUPS_PUBLIC;
+extern void		httpInitialize(void) _CUPS_PUBLIC;
+extern int		httpOptions(http_t *http, const char *uri) _CUPS_PUBLIC;
+extern int		httpPost(http_t *http, const char *uri) _CUPS_PUBLIC;
+extern int		httpPrintf(http_t *http, const char *format, ...) _CUPS_FORMAT(2, 3) _CUPS_PUBLIC;
+extern int		httpPut(http_t *http, const char *uri) _CUPS_PUBLIC;
+extern int		httpRead(http_t *http, char *buffer, int length) _CUPS_DEPRECATED_MSG("Use httpRead2 instead.");
+extern int		httpReconnect(http_t *http) _CUPS_DEPRECATED_1_6_MSG("Use httpReconnect2 instead.");
+extern void		httpSeparate(const char *uri, char *method, char *username, char *host, int *port, char *resource) _CUPS_DEPRECATED_1_2_MSG("Use httpSeparateURI instead.");
+extern void		httpSetField(http_t *http, http_field_t field, const char *value) _CUPS_PUBLIC;
+extern const char	*httpStatus(http_status_t status) _CUPS_PUBLIC;
+extern int		httpTrace(http_t *http, const char *uri) _CUPS_PUBLIC;
+extern http_status_t	httpUpdate(http_t *http) _CUPS_PUBLIC;
+extern int		httpWrite(http_t *http, const char *buffer, int length) _CUPS_DEPRECATED_MSG("Use httpWrite2 instead.");
+extern char		*httpEncode64(char *out, const char *in) _CUPS_DEPRECATED_MSG("Use httpEncode64_2 instead.");
+extern char		*httpDecode64(char *out, const char *in) _CUPS_DEPRECATED_MSG("Use httpDecode64_2 instead.");
+extern int		httpGetLength(http_t *http) _CUPS_DEPRECATED_1_2_MSG("Use httpGetLength2 instead.");
+extern char		*httpMD5(const char *, const char *, const char *, char [33]) _CUPS_DEPRECATED_MSG("Use cupsDoAuth or cupsHashData instead.");
+extern char		*httpMD5Final(const char *, const char *, const char *, char [33]) _CUPS_DEPRECATED_2_2_MSG("Use cupsDoAuth or cupsHashData instead.");
+extern char		*httpMD5String(const unsigned char *, char [33]) _CUPS_DEPRECATED_2_2_MSG("Use cupsHashString instead.");
+
+/**** New in CUPS 1.1.19 ****/
+extern void		httpClearCookie(http_t *http) _CUPS_API_1_1_19;
+extern const char	*httpGetCookie(http_t *http) _CUPS_API_1_1_19;
+extern void		httpSetCookie(http_t *http, const char *cookie) _CUPS_API_1_1_19;
+extern int		httpWait(http_t *http, int msec) _CUPS_API_1_1_19;
+
+/**** New in CUPS 1.1.21 ****/
+extern char		*httpDecode64_2(char *out, int *outlen, const char *in) _CUPS_API_1_1_21;
+extern char		*httpEncode64_2(char *out, int outlen, const char *in, int inlen) _CUPS_API_1_1_21;
+extern void		httpSeparate2(const char *uri, char *method, int methodlen, char *username, int usernamelen, char *host, int hostlen, int *port, char *resource, int resourcelen) _CUPS_DEPRECATED_1_2_MSG("Use httpSeparateURI instead.");
+
+/**** New in CUPS 1.2/macOS 10.5 ****/
+extern int		httpAddrAny(const http_addr_t *addr) _CUPS_API_1_2;
+extern http_addrlist_t	*httpAddrConnect(http_addrlist_t *addrlist, int *sock) _CUPS_API_1_2;
+extern int		httpAddrEqual(const http_addr_t *addr1, const http_addr_t *addr2) _CUPS_API_1_2;
+extern void		httpAddrFreeList(http_addrlist_t *addrlist) _CUPS_API_1_2;
+extern http_addrlist_t	*httpAddrGetList(const char *hostname, int family, const char *service) _CUPS_API_1_2;
+extern int		httpAddrLength(const http_addr_t *addr) _CUPS_API_1_2;
+extern int		httpAddrLocalhost(const http_addr_t *addr) _CUPS_API_1_2;
+extern char		*httpAddrLookup(const http_addr_t *addr, char *name, int namelen) _CUPS_API_1_2;
+extern char		*httpAddrString(const http_addr_t *addr, char *s, int slen) _CUPS_API_1_2;
+extern http_uri_status_t httpAssembleURI(http_uri_coding_t encoding, char *uri, int urilen, const char *scheme, const char *username, const char *host, int port, const char *resource) _CUPS_API_1_2;
+extern http_uri_status_t httpAssembleURIf(http_uri_coding_t encoding, char *uri, int urilen, const char *scheme, const char *username, const char *host, int port, const char *resourcef, ...) _CUPS_FORMAT(8, 9) _CUPS_API_1_2;
+extern int		httpFlushWrite(http_t *http) _CUPS_API_1_2;
+extern int		httpGetBlocking(http_t *http) _CUPS_API_1_2;
+extern const char	*httpGetDateString2(time_t t, char *s, int slen) _CUPS_API_1_2;
+extern int		httpGetFd(http_t *http) _CUPS_API_1_2;
+extern const char	*httpGetHostname(http_t *http, char *s, int slen) _CUPS_API_1_2;
+extern off_t		httpGetLength2(http_t *http) _CUPS_API_1_2;
+extern http_status_t	httpGetStatus(http_t *http) _CUPS_API_1_2;
+extern char		*httpGetSubField2(http_t *http, http_field_t field, const char *name, char *value, int valuelen) _CUPS_API_1_2;
+extern ssize_t		httpRead2(http_t *http, char *buffer, size_t length) _CUPS_API_1_2;
+extern http_uri_status_t httpSeparateURI(http_uri_coding_t decoding, const char *uri, char *scheme, int schemelen, char *username, int usernamelen, char *host, int hostlen, int *port, char *resource, int resourcelen) _CUPS_API_1_2;
+extern void		httpSetExpect(http_t *http, http_status_t expect) _CUPS_API_1_2;
+extern void		httpSetLength(http_t *http, size_t length) _CUPS_API_1_2;
+extern ssize_t		httpWrite2(http_t *http, const char *buffer, size_t length) _CUPS_API_1_2;
+
+/**** New in CUPS 1.3/macOS 10.5 ****/
+extern char		*httpGetAuthString(http_t *http) _CUPS_API_1_3;
+extern void		httpSetAuthString(http_t *http, const char *scheme, const char *data) _CUPS_API_1_3;
+
+/**** New in CUPS 1.5/macOS 10.7 ****/
+extern int		httpAddCredential(cups_array_t *credentials, const void *data, size_t datalen) _CUPS_API_1_5;
+extern int		httpCopyCredentials(http_t *http, cups_array_t **credentials) _CUPS_API_1_5;
+extern void		httpFreeCredentials(cups_array_t *certs) _CUPS_API_1_5;
+extern int		httpSetCredentials(http_t *http, cups_array_t *certs) _CUPS_API_1_5;
+extern void		httpSetTimeout(http_t *http, double timeout, http_timeout_cb_t cb, void *user_data) _CUPS_API_1_5;
+
+/**** New in CUPS 1.6/macOS 10.8 ****/
+extern http_addrlist_t	*httpAddrConnect2(http_addrlist_t *addrlist, int *sock, int msec, int *cancel) _CUPS_API_1_6;
+extern http_state_t	httpGetState(http_t *http) _CUPS_API_1_6;
+extern http_version_t	httpGetVersion(http_t *http) _CUPS_API_1_6;
+extern int		httpReconnect2(http_t *http, int msec, int *cancel) _CUPS_API_1_6;
+
+
+/**** New in CUPS 1.7/macOS 10.9 ****/
+extern http_t		*httpAcceptConnection(int fd, int blocking) _CUPS_API_1_7;
+extern http_addrlist_t	*httpAddrCopyList(http_addrlist_t *src) _CUPS_API_1_7;
+extern int		httpAddrListen(http_addr_t *addr, int port) _CUPS_API_1_7;
+extern int		httpAddrPort(http_addr_t *addr) _CUPS_API_1_7;
+extern char		*httpAssembleUUID(const char *server, int port, const char *name, int number, char *buffer, size_t bufsize) _CUPS_API_1_7;
+extern http_t		*httpConnect2(const char *host, int port, http_addrlist_t *addrlist, int family, http_encryption_t encryption, int blocking, int msec, int *cancel) _CUPS_API_1_7;
+extern const char	*httpGetContentEncoding(http_t *http) _CUPS_API_1_7;
+extern http_status_t	httpGetExpect(http_t *http) _CUPS_API_1_7;
+extern ssize_t		httpPeek(http_t *http, char *buffer, size_t length) _CUPS_API_1_7;
+extern http_state_t	httpReadRequest(http_t *http, char *resource, size_t resourcelen) _CUPS_API_1_7;
+extern void		httpSetDefaultField(http_t *http, http_field_t field, const char *value) _CUPS_API_1_7;
+extern http_state_t	httpWriteResponse(http_t *http, http_status_t status) _CUPS_API_1_7;
+
+/* New in CUPS 2.0/macOS 10.10 */
+extern int		httpAddrClose(http_addr_t *addr, int fd) _CUPS_API_2_0;
+extern int		httpAddrFamily(http_addr_t *addr) _CUPS_API_2_0;
+extern int		httpCompareCredentials(cups_array_t *cred1, cups_array_t *cred2) _CUPS_API_2_0;
+extern int		httpCredentialsAreValidForName(cups_array_t *credentials, const char *common_name);
+extern time_t		httpCredentialsGetExpiration(cups_array_t *credentials) _CUPS_API_2_0;
+extern http_trust_t	httpCredentialsGetTrust(cups_array_t *credentials, const char *common_name) _CUPS_API_2_0;
+extern size_t		httpCredentialsString(cups_array_t *credentials, char *buffer, size_t bufsize) _CUPS_API_2_0;
+extern http_field_t	httpFieldValue(const char *name) _CUPS_API_2_0;
+extern time_t		httpGetActivity(http_t *http) _CUPS_API_2_0;
+extern http_addr_t	*httpGetAddress(http_t *http) _CUPS_API_2_0;
+extern http_encryption_t httpGetEncryption(http_t *http) _CUPS_API_2_0;
+extern http_keepalive_t	httpGetKeepAlive(http_t *http) _CUPS_API_2_0;
+extern size_t		httpGetPending(http_t *http) _CUPS_API_2_0;
+extern size_t		httpGetReady(http_t *http) _CUPS_API_2_0;
+extern size_t		httpGetRemaining(http_t *http) _CUPS_API_2_0;
+extern int		httpIsChunked(http_t *http) _CUPS_API_2_0;
+extern int		httpIsEncrypted(http_t *http) _CUPS_API_2_0;
+extern int		httpLoadCredentials(const char *path, cups_array_t **credentials, const char *common_name) _CUPS_API_2_0;
+extern const char	*httpResolveHostname(http_t *http, char *buffer, size_t bufsize) _CUPS_API_2_0;
+extern int		httpSaveCredentials(const char *path, cups_array_t *credentials, const char *common_name) _CUPS_API_2_0;
+extern void		httpSetKeepAlive(http_t *http, http_keepalive_t keep_alive) _CUPS_API_2_0;
+extern void		httpShutdown(http_t *http) _CUPS_API_2_0;
+extern const char	*httpStateString(http_state_t state) _CUPS_API_2_0;
+extern const char	*httpURIStatusString(http_uri_status_t status) _CUPS_API_2_0;
+
+/*
+ * C++ magic...
+ */
+
+#  ifdef __cplusplus
+}
+#  endif /* __cplusplus */
+#endif /* !_CUPS_HTTP_H_ */
diff --git a/third_party/cups/include/cups/ipp.h b/third_party/cups/include/cups/ipp.h
new file mode 100644
index 0000000000..b7412a40c4
--- /dev/null
+++ b/third_party/cups/include/cups/ipp.h
@@ -0,0 +1,947 @@
+/*
+ * Internet Printing Protocol definitions for CUPS.
+ *
+ * Copyright © 2007-2018 by Apple Inc.
+ * Copyright © 1997-2006 by Easy Software Products.
+ *
+ * Licensed under Apache License v2.0.  See the file "LICENSE" for more
+ * information.
+ */
+
+#ifndef _CUPS_IPP_H_
+#  define _CUPS_IPP_H_
+
+/*
+ * Include necessary headers...
+ */
+
+#  include "http.h"
+#  include <stdarg.h>
+
+
+/*
+ * C++ magic...
+ */
+
+#  ifdef __cplusplus
+extern "C" {
+#  endif /* __cplusplus */
+
+
+/*
+ * IPP version string...
+ */
+
+#  define IPP_VERSION		"\002\001"
+
+/*
+ * IPP registered port number...
+ *
+ * Note: Applications should never use IPP_PORT, but instead use the
+ * ippPort() function to allow overrides via the IPP_PORT environment
+ * variable and services file if needed!
+ */
+
+#  define IPP_PORT		631
+
+/*
+ * Common limits...
+ */
+
+#  define IPP_MAX_CHARSET	64	/* Maximum length of charset values w/nul */
+#  define IPP_MAX_KEYWORD	256	/* Maximum length of keyword values w/nul */
+#  define IPP_MAX_LANGUAGE	64	/* Maximum length of naturalLanguage values w/nul */
+#  define IPP_MAX_LENGTH	32767	/* Maximum size of any single value */
+#  define IPP_MAX_MIMETYPE	256	/* Maximum length of mimeMediaType values w/nul */
+#  define IPP_MAX_NAME		256	/* Maximum length of common name values w/nul */
+#  define IPP_MAX_OCTETSTRING	1023	/* Maximum length of octetString values w/o nul */
+#  define IPP_MAX_TEXT		1024	/* Maximum length of text values w/nul */
+#  define IPP_MAX_URI		1024	/* Maximum length of uri values w/nul */
+#  define IPP_MAX_URISCHEME	64	/* Maximum length of uriScheme values w/nul */
+#  define IPP_MAX_VALUES	8	/* Power-of-2 allocation increment */
+
+/*
+ * Macro to flag a text string attribute as "const" (static storage) vs.
+ * allocated.
+ */
+
+#  define IPP_CONST_TAG(x) (ipp_tag_t)(IPP_TAG_CUPS_CONST | (x))
+
+
+/*
+ * Types and structures...
+ */
+
+typedef enum ipp_dstate_e		/**** Document states @exclude all@ ****/
+{
+  IPP_DSTATE_PENDING = 3,		/* Document is pending */
+  IPP_DSTATE_PROCESSING = 5,		/* Document is processing */
+  IPP_DSTATE_CANCELED = 7,		/* Document is canceled */
+  IPP_DSTATE_ABORTED,			/* Document is aborted */
+  IPP_DSTATE_COMPLETED			/* Document is completed */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define IPP_DOCUMENT_PENDING	IPP_DSTATE_PENDING
+#    define IPP_DOCUMENT_PROCESSING	IPP_DSTATE_PROCESSING
+#    define IPP_DOCUMENT_CANCELED	IPP_DSTATE_CANCELED
+#    define IPP_DOCUMENT_ABORTED	IPP_DSTATE_ABORTED
+#    define IPP_DOCUMENT_COMPLETED	IPP_DSTATE_COMPLETED
+#  endif /* !_CUPS_NO_DEPRECATED */
+} ipp_dstate_t;
+
+typedef enum ipp_finishings_e		/**** Finishings values ****/
+{
+  IPP_FINISHINGS_NONE = 3,		/* No finishing */
+  IPP_FINISHINGS_STAPLE,		/* Staple (any location/method) */
+  IPP_FINISHINGS_PUNCH,			/* Punch (any location/count) */
+  IPP_FINISHINGS_COVER,			/* Add cover */
+  IPP_FINISHINGS_BIND,			/* Bind */
+  IPP_FINISHINGS_SADDLE_STITCH,		/* Staple interior */
+  IPP_FINISHINGS_EDGE_STITCH,		/* Stitch along any side */
+  IPP_FINISHINGS_FOLD,			/* Fold (any type) */
+  IPP_FINISHINGS_TRIM,			/* Trim (any type) */
+  IPP_FINISHINGS_BALE,			/* Bale (any type) */
+  IPP_FINISHINGS_BOOKLET_MAKER,		/* Fold to make booklet */
+  IPP_FINISHINGS_JOG_OFFSET,		/* Offset for binding (any type) */
+  IPP_FINISHINGS_COAT,			/* Apply protective liquid or powder coating */
+  IPP_FINISHINGS_LAMINATE,		/* Apply protective (solid) material */
+  IPP_FINISHINGS_STAPLE_TOP_LEFT = 20,	/* Staple top left corner */
+  IPP_FINISHINGS_STAPLE_BOTTOM_LEFT,	/* Staple bottom left corner */
+  IPP_FINISHINGS_STAPLE_TOP_RIGHT,	/* Staple top right corner */
+  IPP_FINISHINGS_STAPLE_BOTTOM_RIGHT,	/* Staple bottom right corner */
+  IPP_FINISHINGS_EDGE_STITCH_LEFT,	/* Stitch along left side */
+  IPP_FINISHINGS_EDGE_STITCH_TOP,	/* Stitch along top edge */
+  IPP_FINISHINGS_EDGE_STITCH_RIGHT,	/* Stitch along right side */
+  IPP_FINISHINGS_EDGE_STITCH_BOTTOM,	/* Stitch along bottom edge */
+  IPP_FINISHINGS_STAPLE_DUAL_LEFT,	/* Two staples on left */
+  IPP_FINISHINGS_STAPLE_DUAL_TOP,	/* Two staples on top */
+  IPP_FINISHINGS_STAPLE_DUAL_RIGHT,	/* Two staples on right */
+  IPP_FINISHINGS_STAPLE_DUAL_BOTTOM,	/* Two staples on bottom */
+  IPP_FINISHINGS_STAPLE_TRIPLE_LEFT,	/* Three staples on left */
+  IPP_FINISHINGS_STAPLE_TRIPLE_TOP,	/* Three staples on top */
+  IPP_FINISHINGS_STAPLE_TRIPLE_RIGHT,	/* Three staples on right */
+  IPP_FINISHINGS_STAPLE_TRIPLE_BOTTOM,	/* Three staples on bottom */
+  IPP_FINISHINGS_BIND_LEFT = 50,	/* Bind on left */
+  IPP_FINISHINGS_BIND_TOP,		/* Bind on top */
+  IPP_FINISHINGS_BIND_RIGHT,		/* Bind on right */
+  IPP_FINISHINGS_BIND_BOTTOM,		/* Bind on bottom */
+  IPP_FINISHINGS_TRIM_AFTER_PAGES = 60,	/* Trim output after each page */
+  IPP_FINISHINGS_TRIM_AFTER_DOCUMENTS,	/* Trim output after each document */
+  IPP_FINISHINGS_TRIM_AFTER_COPIES,	/* Trim output after each copy */
+  IPP_FINISHINGS_TRIM_AFTER_JOB,	/* Trim output after job */
+  IPP_FINISHINGS_PUNCH_TOP_LEFT = 70,	/* Punch 1 hole top left */
+  IPP_FINISHINGS_PUNCH_BOTTOM_LEFT,	/* Punch 1 hole bottom left */
+  IPP_FINISHINGS_PUNCH_TOP_RIGHT,	/* Punch 1 hole top right */
+  IPP_FINISHINGS_PUNCH_BOTTOM_RIGHT,	/* Punch 1 hole bottom right */
+  IPP_FINISHINGS_PUNCH_DUAL_LEFT,	/* Punch 2 holes left side */
+  IPP_FINISHINGS_PUNCH_DUAL_TOP,	/* Punch 2 holes top edge */
+  IPP_FINISHINGS_PUNCH_DUAL_RIGHT,	/* Punch 2 holes right side */
+  IPP_FINISHINGS_PUNCH_DUAL_BOTTOM,	/* Punch 2 holes bottom edge */
+  IPP_FINISHINGS_PUNCH_TRIPLE_LEFT,	/* Punch 3 holes left side */
+  IPP_FINISHINGS_PUNCH_TRIPLE_TOP,	/* Punch 3 holes top edge */
+  IPP_FINISHINGS_PUNCH_TRIPLE_RIGHT,	/* Punch 3 holes right side */
+  IPP_FINISHINGS_PUNCH_TRIPLE_BOTTOM,	/* Punch 3 holes bottom edge */
+  IPP_FINISHINGS_PUNCH_QUAD_LEFT,	/* Punch 4 holes left side */
+  IPP_FINISHINGS_PUNCH_QUAD_TOP,	/* Punch 4 holes top edge */
+  IPP_FINISHINGS_PUNCH_QUAD_RIGHT,	/* Punch 4 holes right side */
+  IPP_FINISHINGS_PUNCH_QUAD_BOTTOM,	/* Punch 4 holes bottom edge */
+  IPP_FINISHINGS_PUNCH_MULTIPLE_LEFT,	/* Punch multiple holes left side */
+  IPP_FINISHINGS_PUNCH_MULTIPLE_TOP,	/* Punch multiple holes top edge */
+  IPP_FINISHINGS_PUNCH_MULTIPLE_RIGHT,	/* Punch multiple holes right side */
+  IPP_FINISHINGS_PUNCH_MULTIPLE_BOTTOM,	/* Punch multiple holes bottom edge */
+  IPP_FINISHINGS_FOLD_ACCORDION = 90,	/* Accordion-fold the paper vertically into four sections */
+  IPP_FINISHINGS_FOLD_DOUBLE_GATE,	/* Fold the top and bottom quarters of the paper towards the midline, then fold in half vertically */
+  IPP_FINISHINGS_FOLD_GATE,		/* Fold the top and bottom quarters of the paper towards the midline */
+  IPP_FINISHINGS_FOLD_HALF,		/* Fold the paper in half vertically */
+  IPP_FINISHINGS_FOLD_HALF_Z,		/* Fold the paper in half horizontally, then Z-fold the paper vertically */
+  IPP_FINISHINGS_FOLD_LEFT_GATE,	/* Fold the top quarter of the paper towards the midline */
+  IPP_FINISHINGS_FOLD_LETTER,		/* Fold the paper into three sections vertically; sometimes also known as a C fold*/
+  IPP_FINISHINGS_FOLD_PARALLEL,		/* Fold the paper in half vertically two times, yielding four sections */
+  IPP_FINISHINGS_FOLD_POSTER,		/* Fold the paper in half horizontally and vertically; sometimes also called a cross fold */
+  IPP_FINISHINGS_FOLD_RIGHT_GATE,	/* Fold the bottom quarter of the paper towards the midline */
+  IPP_FINISHINGS_FOLD_Z,		/* Fold the paper vertically into three sections, forming a Z */
+  IPP_FINISHINGS_FOLD_ENGINEERING_Z,	/* Fold the paper vertically into two small sections and one larger, forming an elongated Z */
+
+  /* CUPS extensions for finishings (pre-standard versions of values above) */
+  IPP_FINISHINGS_CUPS_PUNCH_TOP_LEFT = 0x40000046,
+					/* Punch 1 hole top left @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_BOTTOM_LEFT,/* Punch 1 hole bottom left @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_TOP_RIGHT,	/* Punch 1 hole top right @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_BOTTOM_RIGHT,
+					/* Punch 1 hole bottom right @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_DUAL_LEFT,	/* Punch 2 holes left side @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_DUAL_TOP,	/* Punch 2 holes top edge @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_DUAL_RIGHT,	/* Punch 2 holes right side @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_DUAL_BOTTOM,/* Punch 2 holes bottom edge @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_TRIPLE_LEFT,/* Punch 3 holes left side @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_TRIPLE_TOP,	/* Punch 3 holes top edge @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_TRIPLE_RIGHT,
+					/* Punch 3 holes right side @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_TRIPLE_BOTTOM,
+					/* Punch 3 holes bottom edge @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_QUAD_LEFT,	/* Punch 4 holes left side @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_QUAD_TOP,	/* Punch 4 holes top edge @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_QUAD_RIGHT,	/* Punch 4 holes right side @exclude all@ */
+  IPP_FINISHINGS_CUPS_PUNCH_QUAD_BOTTOM,/* Punch 4 holes bottom edge @exclude all@ */
+
+  IPP_FINISHINGS_CUPS_FOLD_ACCORDION = 0x4000005A,
+					/* Accordion-fold the paper vertically into four sections @exclude all@ */
+  IPP_FINISHINGS_CUPS_FOLD_DOUBLE_GATE,	/* Fold the top and bottom quarters of the paper towards the midline, then fold in half vertically @exclude all@ */
+  IPP_FINISHINGS_CUPS_FOLD_GATE,	/* Fold the top and bottom quarters of the paper towards the midline @exclude all@ */
+  IPP_FINISHINGS_CUPS_FOLD_HALF,	/* Fold the paper in half vertically @exclude all@ */
+  IPP_FINISHINGS_CUPS_FOLD_HALF_Z,	/* Fold the paper in half horizontally, then Z-fold the paper vertically @exclude all@ */
+  IPP_FINISHINGS_CUPS_FOLD_LEFT_GATE,	/* Fold the top quarter of the paper towards the midline @exclude all@ */
+  IPP_FINISHINGS_CUPS_FOLD_LETTER,	/* Fold the paper into three sections vertically; sometimes also known as a C fold @exclude all@ */
+  IPP_FINISHINGS_CUPS_FOLD_PARALLEL,	/* Fold the paper in half vertically two times, yielding four sections @exclude all@ */
+  IPP_FINISHINGS_CUPS_FOLD_POSTER,	/* Fold the paper in half horizontally and vertically; sometimes also called a cross fold @exclude all@ */
+  IPP_FINISHINGS_CUPS_FOLD_RIGHT_GATE,	/* Fold the bottom quarter of the paper towards the midline @exclude all@ */
+  IPP_FINISHINGS_CUPS_FOLD_Z		/* Fold the paper vertically into three sections, forming a Z @exclude all@ */
+} ipp_finishings_t;
+#  ifndef _CUPS_NO_DEPRECATED
+#    define IPP_FINISHINGS_CUPS_FOLD_ACCORDIAN IPP_FINISHINGS_CUPS_FOLD_ACCORDION
+#    define IPP_FINISHINGS_FOLD_ACCORDIAN IPP_FINISHINGS_FOLD_ACCORDION
+#    define IPP_FINISHINGS_JOB_OFFSET	IPP_FINISHINGS_JOG_OFFSET
+					/* Long-time misspellings... */
+typedef enum ipp_finishings_e ipp_finish_t;
+#  endif /* !_CUPS_NO_DEPRECATED */
+
+typedef enum ipp_jcollate_e		/**** Job collation types @deprecated@ @exclude all@ ****/
+{
+  IPP_JCOLLATE_UNCOLLATED_SHEETS = 3,
+  IPP_JCOLLATE_COLLATED_DOCUMENTS,
+  IPP_JCOLLATE_UNCOLLATED_DOCUMENTS
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define IPP_JOB_UNCOLLATED_SHEETS		IPP_JCOLLATE_UNCOLLATED_SHEETS
+#    define IPP_JOB_COLLATED_DOCUMENTS		IPP_JCOLLATE_COLLATED_DOCUMENTS
+#    define IPP_JOB_UNCOLLATED_DOCUMENTS	IPP_JCOLLATE_UNCOLLATED_DOCUMENTS
+#  endif /* !_CUPS_NO_DEPRECATED */
+} ipp_jcollate_t;
+
+typedef enum ipp_jstate_e		/**** Job states ****/
+{
+  IPP_JSTATE_PENDING = 3,		/* Job is waiting to be printed */
+  IPP_JSTATE_HELD,			/* Job is held for printing */
+  IPP_JSTATE_PROCESSING,		/* Job is currently printing */
+  IPP_JSTATE_STOPPED,			/* Job has been stopped */
+  IPP_JSTATE_CANCELED,			/* Job has been canceled */
+  IPP_JSTATE_ABORTED,			/* Job has aborted due to error */
+  IPP_JSTATE_COMPLETED			/* Job has completed successfully */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define IPP_JOB_PENDING	IPP_JSTATE_PENDING
+#    define IPP_JOB_HELD	IPP_JSTATE_HELD
+#    define IPP_JOB_PROCESSING	IPP_JSTATE_PROCESSING
+#    define IPP_JOB_STOPPED	IPP_JSTATE_STOPPED
+#    define IPP_JOB_CANCELED	IPP_JSTATE_CANCELED
+#    define IPP_JOB_ABORTED	IPP_JSTATE_ABORTED
+#    define IPP_JOB_COMPLETED	IPP_JSTATE_COMPLETED
+  /* Legacy name for canceled state */
+#    define IPP_JOB_CANCELLED	IPP_JSTATE_CANCELED
+#  endif /* !_CUPS_NO_DEPRECATED */
+} ipp_jstate_t;
+
+typedef enum ipp_op_e			/**** IPP operations ****/
+{
+  IPP_OP_CUPS_INVALID = -1,		/* Invalid operation name for @link ippOpValue@ */
+  IPP_OP_CUPS_NONE = 0,			/* No operation @private@ */
+  IPP_OP_PRINT_JOB = 0x0002,		/* Print-Job: Print a single file */
+  IPP_OP_PRINT_URI,			/* Print-URI: Print a single URL @exclude all@ */
+  IPP_OP_VALIDATE_JOB,			/* Validate-Job: Validate job values prior to submission */
+  IPP_OP_CREATE_JOB,			/* Create-Job: Create an empty print job */
+  IPP_OP_SEND_DOCUMENT,			/* Send-Document: Add a file to a job */
+  IPP_OP_SEND_URI,			/* Send-URI: Add a URL to a job @exclude all@ */
+  IPP_OP_CANCEL_JOB,			/* Cancel-Job: Cancel a job */
+  IPP_OP_GET_JOB_ATTRIBUTES,		/* Get-Job-Attribute: Get information about a job */
+  IPP_OP_GET_JOBS,			/* Get-Jobs: Get a list of jobs */
+  IPP_OP_GET_PRINTER_ATTRIBUTES,	/* Get-Printer-Attributes: Get information about a printer */
+  IPP_OP_HOLD_JOB,			/* Hold-Job: Hold a job for printing */
+  IPP_OP_RELEASE_JOB,			/* Release-Job: Release a job for printing */
+  IPP_OP_RESTART_JOB,			/* Restart-Job: Reprint a job @deprecated@ */
+  IPP_OP_PAUSE_PRINTER = 0x0010,	/* Pause-Printer: Stop a printer */
+  IPP_OP_RESUME_PRINTER,		/* Resume-Printer: Start a printer */
+  IPP_OP_PURGE_JOBS,			/* Purge-Jobs: Delete all jobs @deprecated@ @exclude all@ */
+  IPP_OP_SET_PRINTER_ATTRIBUTES,	/* Set-Printer-Attributes: Set printer values */
+  IPP_OP_SET_JOB_ATTRIBUTES,		/* Set-Job-Attributes: Set job values */
+  IPP_OP_GET_PRINTER_SUPPORTED_VALUES,	/* Get-Printer-Supported-Values: Get supported values */
+  IPP_OP_CREATE_PRINTER_SUBSCRIPTIONS,	/* Create-Printer-Subscriptions: Create one or more printer subscriptions @since CUPS 1.2/macOS 10.5@ */
+  IPP_OP_CREATE_JOB_SUBSCRIPTIONS,	/* Create-Job-Subscriptions: Create one of more job subscriptions @since CUPS 1.2/macOS 10.5@ */
+  IPP_OP_GET_SUBSCRIPTION_ATTRIBUTES,	/* Get-Subscription-Attributes: Get subscription information @since CUPS 1.2/macOS 10.5@ */
+  IPP_OP_GET_SUBSCRIPTIONS,		/* Get-Subscriptions: Get list of subscriptions @since CUPS 1.2/macOS 10.5@ */
+  IPP_OP_RENEW_SUBSCRIPTION,		/* Renew-Subscription: Renew a printer subscription @since CUPS 1.2/macOS 10.5@ */
+  IPP_OP_CANCEL_SUBSCRIPTION,		/* Cancel-Subscription: Cancel a subscription @since CUPS 1.2/macOS 10.5@ */
+  IPP_OP_GET_NOTIFICATIONS,		/* Get-Notifications: Get notification events @since CUPS 1.2/macOS 10.5@ */
+  IPP_OP_SEND_NOTIFICATIONS,		/* Send-Notifications: Send notification events @private@ */
+  IPP_OP_GET_RESOURCE_ATTRIBUTES,	/* Get-Resource-Attributes: Get resource information @private@ */
+  IPP_OP_GET_RESOURCE_DATA,		/* Get-Resource-Data: Get resource data @private@ @deprecated@ */
+  IPP_OP_GET_RESOURCES,			/* Get-Resources: Get list of resources @private@ */
+  IPP_OP_GET_PRINT_SUPPORT_FILES,	/* Get-Printer-Support-Files: Get printer support files @private@ */
+  IPP_OP_ENABLE_PRINTER,		/* Enable-Printer: Accept new jobs for a printer */
+  IPP_OP_DISABLE_PRINTER,		/* Disable-Printer: Reject new jobs for a printer */
+  IPP_OP_PAUSE_PRINTER_AFTER_CURRENT_JOB,
+					/* Pause-Printer-After-Current-Job: Stop printer after the current job */
+  IPP_OP_HOLD_NEW_JOBS,			/* Hold-New-Jobs: Hold new jobs */
+  IPP_OP_RELEASE_HELD_NEW_JOBS,		/* Release-Held-New-Jobs: Release new jobs that were previously held */
+  IPP_OP_DEACTIVATE_PRINTER,		/* Deactivate-Printer: Stop a printer and do not accept jobs @deprecated@ @exclude all@ */
+  IPP_OP_ACTIVATE_PRINTER,		/* Activate-Printer: Start a printer and accept jobs @deprecated@ @exclude all@ */
+  IPP_OP_RESTART_PRINTER,		/* Restart-Printer: Restart a printer @exclude all@ */
+  IPP_OP_SHUTDOWN_PRINTER,		/* Shutdown-Printer: Turn a printer off @exclude all@ */
+  IPP_OP_STARTUP_PRINTER,		/* Startup-Printer: Turn a printer on @exclude all@ */
+  IPP_OP_REPROCESS_JOB,			/* Reprocess-Job: Reprint a job @deprecated@ @exclude all@*/
+  IPP_OP_CANCEL_CURRENT_JOB,		/* Cancel-Current-Job: Cancel the current job */
+  IPP_OP_SUSPEND_CURRENT_JOB,		/* Suspend-Current-Job: Suspend the current job */
+  IPP_OP_RESUME_JOB,			/* Resume-Job: Resume the current job */
+  IPP_OP_PROMOTE_JOB,			/* Promote-Job: Promote a job to print sooner */
+  IPP_OP_SCHEDULE_JOB_AFTER,		/* Schedule-Job-After: Schedule a job to print after another */
+  IPP_OP_CANCEL_DOCUMENT = 0x0033,	/* Cancel-Document: Cancel a document @exclude all@ */
+  IPP_OP_GET_DOCUMENT_ATTRIBUTES,	/* Get-Document-Attributes: Get document information @exclude all@ */
+  IPP_OP_GET_DOCUMENTS,			/* Get-Documents: Get a list of documents in a job @exclude all@ */
+  IPP_OP_DELETE_DOCUMENT,		/* Delete-Document: Delete a document @deprecated@  @exclude all@ */
+  IPP_OP_SET_DOCUMENT_ATTRIBUTES,	/* Set-Document-Attributes: Set document values @exclude all@ */
+  IPP_OP_CANCEL_JOBS,			/* Cancel-Jobs: Cancel all jobs (administrative) */
+  IPP_OP_CANCEL_MY_JOBS,		/* Cancel-My-Jobs: Cancel a user's jobs */
+  IPP_OP_RESUBMIT_JOB,			/* Resubmit-Job: Copy and reprint a job @exclude all@ */
+  IPP_OP_CLOSE_JOB,			/* Close-Job: Close a job and start printing */
+  IPP_OP_IDENTIFY_PRINTER,		/* Identify-Printer: Make the printer beep, flash, or display a message for identification */
+  IPP_OP_VALIDATE_DOCUMENT,		/* Validate-Document: Validate document values prior to submission @exclude all@ */
+  IPP_OP_ADD_DOCUMENT_IMAGES,		/* Add-Document-Images: Add image(s) from the specified scanner source @exclude all@ */
+  IPP_OP_ACKNOWLEDGE_DOCUMENT,		/* Acknowledge-Document: Acknowledge processing of a document @exclude all@ */
+  IPP_OP_ACKNOWLEDGE_IDENTIFY_PRINTER,	/* Acknowledge-Identify-Printer: Acknowledge action on an Identify-Printer request @exclude all@ */
+  IPP_OP_ACKNOWLEDGE_JOB,		/* Acknowledge-Job: Acknowledge processing of a job @exclude all@ */
+  IPP_OP_FETCH_DOCUMENT,		/* Fetch-Document: Fetch a document for processing @exclude all@ */
+  IPP_OP_FETCH_JOB,			/* Fetch-Job: Fetch a job for processing @exclude all@ */
+  IPP_OP_GET_OUTPUT_DEVICE_ATTRIBUTES,	/* Get-Output-Device-Attributes: Get printer information for a specific output device @exclude all@ */
+  IPP_OP_UPDATE_ACTIVE_JOBS,		/* Update-Active-Jobs: Update the list of active jobs that a proxy has processed @exclude all@ */
+  IPP_OP_DEREGISTER_OUTPUT_DEVICE,	/* Deregister-Output-Device: Remove an output device @exclude all@ */
+  IPP_OP_UPDATE_DOCUMENT_STATUS,	/* Update-Document-Status: Update document values @exclude all@ */
+  IPP_OP_UPDATE_JOB_STATUS,		/* Update-Job-Status: Update job values @exclude all@ */
+  IPP_OP_UPDATE_OUTPUT_DEVICE_ATTRIBUTES,
+					/* Update-Output-Device-Attributes: Update output device values @exclude all@ */
+  IPP_OP_GET_NEXT_DOCUMENT_DATA,	/* Get-Next-Document-Data: Scan more document data @exclude all@ */
+  IPP_OP_ALLOCATE_PRINTER_RESOURCES,    /* Allocate-Printer-Resources: Use resources for a printer. */
+  IPP_OP_CREATE_PRINTER,                /* Create-Printer: Create a new service. */
+  IPP_OP_DEALLOCATE_PRINTER_RESOURCES,  /* Deallocate-Printer-Resources: Stop using resources for a printer. */
+  IPP_OP_DELETE_PRINTER,                /* Delete-Printer: Delete an existing service. */
+  IPP_OP_GET_PRINTERS,                  /* Get-Printers: Get a list of services. */
+  IPP_OP_SHUTDOWN_ONE_PRINTER,          /* Shutdown-One-Printer: Shutdown a service. */
+  IPP_OP_STARTUP_ONE_PRINTER,           /* Startup-One-Printer: Start a service. */
+  IPP_OP_CANCEL_RESOURCE,               /* Cancel-Resource: Uninstall a resource. */
+  IPP_OP_CREATE_RESOURCE,               /* Create-Resource: Create a new (empty) resource. */
+  IPP_OP_INSTALL_RESOURCE,              /* Install-Resource: Install a resource. */
+  IPP_OP_SEND_RESOURCE_DATA,            /* Send-Resource-Data: Upload the data for a resource. */
+  IPP_OP_SET_RESOURCE_ATTRIBUTES,       /* Set-Resource-Attributes: Set resource object  attributes. */
+  IPP_OP_CREATE_RESOURCE_SUBSCRIPTIONS, /* Create-Resource-Subscriptions: Create event subscriptions for a resource. */
+  IPP_OP_CREATE_SYSTEM_SUBSCRIPTIONS,   /* Create-System-Subscriptions: Create event subscriptions for a system. */
+  IPP_OP_DISABLE_ALL_PRINTERS,          /* Disable-All-Printers: Stop accepting new jobs on all services. */
+  IPP_OP_ENABLE_ALL_PRINTERS,           /* Enable-All-Printers: Start accepting new jobs on all services. */
+  IPP_OP_GET_SYSTEM_ATTRIBUTES,         /* Get-System-Attributes: Get system object attributes. */
+  IPP_OP_GET_SYSTEM_SUPPORTED_VALUES,   /* Get-System-Supported-Values: Get supported values for system object attributes. */
+  IPP_OP_PAUSE_ALL_PRINTERS,            /* Pause-All-Printers: Stop all services immediately. */
+  IPP_OP_PAUSE_ALL_PRINTERS_AFTER_CURRENT_JOB,
+                                        /* Pause-All-Printers-After-Current-Job: Stop all services after processing the current jobs. */
+  IPP_OP_REGISTER_OUTPUT_DEVICE,        /* Register-Output-Device: Register a remote service. */
+  IPP_OP_RESTART_SYSTEM,                /* Restart-System: Restart all services. */
+  IPP_OP_RESUME_ALL_PRINTERS,           /* Resume-All-Printers: Start job processing on all services. */
+  IPP_OP_SET_SYSTEM_ATTRIBUTES,         /* Set-System-Attributes: Set system object attributes. */
+  IPP_OP_SHUTDOWN_ALL_PRINTERS,         /* Shutdown-All-Printers: Shutdown all services. */
+  IPP_OP_STARTUP_ALL_PRINTERS,          /* Startup-All-Printers: Startup all services. */
+
+  IPP_OP_PRIVATE = 0x4000,		/* Reserved @private@ */
+  IPP_OP_CUPS_GET_DEFAULT,		/* CUPS-Get-Default: Get the default printer */
+  IPP_OP_CUPS_GET_PRINTERS,		/* CUPS-Get-Printers: Get a list of printers and/or classes */
+  IPP_OP_CUPS_ADD_MODIFY_PRINTER,	/* CUPS-Add-Modify-Printer: Add or modify a printer */
+  IPP_OP_CUPS_DELETE_PRINTER,		/* CUPS-Delete-Printer: Delete a printer */
+  IPP_OP_CUPS_GET_CLASSES,		/* CUPS-Get-Classes: Get a list of classes @deprecated@ @exclude all@ */
+  IPP_OP_CUPS_ADD_MODIFY_CLASS,		/* CUPS-Add-Modify-Class: Add or modify a class */
+  IPP_OP_CUPS_DELETE_CLASS,		/* CUPS-Delete-Class: Delete a class */
+  IPP_OP_CUPS_ACCEPT_JOBS,		/* CUPS-Accept-Jobs: Accept new jobs on a printer @exclude all@ */
+  IPP_OP_CUPS_REJECT_JOBS,		/* CUPS-Reject-Jobs: Reject new jobs on a printer @exclude all@ */
+  IPP_OP_CUPS_SET_DEFAULT,		/* CUPS-Set-Default: Set the default printer */
+  IPP_OP_CUPS_GET_DEVICES,		/* CUPS-Get-Devices: Get a list of supported devices @deprecated@ */
+  IPP_OP_CUPS_GET_PPDS,			/* CUPS-Get-PPDs: Get a list of supported drivers @deprecated@ */
+  IPP_OP_CUPS_MOVE_JOB,			/* CUPS-Move-Job: Move a job to a different printer */
+  IPP_OP_CUPS_AUTHENTICATE_JOB,		/* CUPS-Authenticate-Job: Authenticate a job @since CUPS 1.2/macOS 10.5@ */
+  IPP_OP_CUPS_GET_PPD,			/* CUPS-Get-PPD: Get a PPD file @deprecated@ */
+  IPP_OP_CUPS_GET_DOCUMENT = 0x4027,	/* CUPS-Get-Document: Get a document file @since CUPS 1.4/macOS 10.6@ */
+  IPP_OP_CUPS_CREATE_LOCAL_PRINTER	/* CUPS-Create-Local-Printer: Create a local (temporary) printer @since CUPS 2.2@ */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define IPP_PRINT_JOB			IPP_OP_PRINT_JOB
+#    define IPP_PRINT_URI			IPP_OP_PRINT_URI
+#    define IPP_VALIDATE_JOB			IPP_OP_VALIDATE_JOB
+#    define IPP_CREATE_JOB			IPP_OP_CREATE_JOB
+#    define IPP_SEND_DOCUMENT			IPP_OP_SEND_DOCUMENT
+#    define IPP_SEND_URI			IPP_OP_SEND_URI
+#    define IPP_CANCEL_JOB			IPP_OP_CANCEL_JOB
+#    define IPP_GET_JOB_ATTRIBUTES		IPP_OP_GET_JOB_ATTRIBUTES
+#    define IPP_GET_JOBS			IPP_OP_GET_JOBS
+#    define IPP_GET_PRINTER_ATTRIBUTES		IPP_OP_GET_PRINTER_ATTRIBUTES
+#    define IPP_HOLD_JOB			IPP_OP_HOLD_JOB
+#    define IPP_RELEASE_JOB			IPP_OP_RELEASE_JOB
+#    define IPP_RESTART_JOB			IPP_OP_RESTART_JOB
+#    define IPP_PAUSE_PRINTER			IPP_OP_PAUSE_PRINTER
+#    define IPP_RESUME_PRINTER			IPP_OP_RESUME_PRINTER
+#    define IPP_PURGE_JOBS			IPP_OP_PURGE_JOBS
+#    define IPP_SET_PRINTER_ATTRIBUTES		IPP_OP_SET_PRINTER_ATTRIBUTES
+#    define IPP_SET_JOB_ATTRIBUTES		IPP_OP_SET_JOB_ATTRIBUTES
+#    define IPP_GET_PRINTER_SUPPORTED_VALUES	IPP_OP_GET_PRINTER_SUPPORTED_VALUES
+#    define IPP_CREATE_PRINTER_SUBSCRIPTION	IPP_OP_CREATE_PRINTER_SUBSCRIPTIONS
+#    define IPP_CREATE_JOB_SUBSCRIPTION		IPP_OP_CREATE_JOB_SUBSCRIPTIONS
+#    define IPP_OP_CREATE_PRINTER_SUBSCRIPTION	IPP_OP_CREATE_PRINTER_SUBSCRIPTIONS
+#    define IPP_OP_CREATE_JOB_SUBSCRIPTION	IPP_OP_CREATE_JOB_SUBSCRIPTIONS
+#    define IPP_GET_SUBSCRIPTION_ATTRIBUTES	IPP_OP_GET_SUBSCRIPTION_ATTRIBUTES
+#    define IPP_GET_SUBSCRIPTIONS		IPP_OP_GET_SUBSCRIPTIONS
+#    define IPP_RENEW_SUBSCRIPTION		IPP_OP_RENEW_SUBSCRIPTION
+#    define IPP_CANCEL_SUBSCRIPTION		IPP_OP_CANCEL_SUBSCRIPTION
+#    define IPP_GET_NOTIFICATIONS		IPP_OP_GET_NOTIFICATIONS
+#    define IPP_SEND_NOTIFICATIONS		IPP_OP_SEND_NOTIFICATIONS
+#    define IPP_GET_RESOURCE_ATTRIBUTES		IPP_OP_GET_RESOURCE_ATTRIBUTES
+#    define IPP_GET_RESOURCE_DATA		IPP_OP_GET_RESOURCE_DATA
+#    define IPP_GET_RESOURCES			IPP_OP_GET_RESOURCES
+#    define IPP_GET_PRINT_SUPPORT_FILES		IPP_OP_GET_PRINT_SUPPORT_FILES
+#    define IPP_ENABLE_PRINTER			IPP_OP_ENABLE_PRINTER
+#    define IPP_DISABLE_PRINTER			IPP_OP_DISABLE_PRINTER
+#    define IPP_PAUSE_PRINTER_AFTER_CURRENT_JOB	IPP_OP_PAUSE_PRINTER_AFTER_CURRENT_JOB
+#    define IPP_HOLD_NEW_JOBS			IPP_OP_HOLD_NEW_JOBS
+#    define IPP_RELEASE_HELD_NEW_JOBS		IPP_OP_RELEASE_HELD_NEW_JOBS
+#    define IPP_DEACTIVATE_PRINTER		IPP_OP_DEACTIVATE_PRINTER
+#    define IPP_ACTIVATE_PRINTER		IPP_OP_ACTIVATE_PRINTER
+#    define IPP_RESTART_PRINTER			IPP_OP_RESTART_PRINTER
+#    define IPP_SHUTDOWN_PRINTER		IPP_OP_SHUTDOWN_PRINTER
+#    define IPP_STARTUP_PRINTER			IPP_OP_STARTUP_PRINTER
+#    define IPP_REPROCESS_JOB			IPP_OP_REPROCESS_JOB
+#    define IPP_CANCEL_CURRENT_JOB		IPP_OP_CANCEL_CURRENT_JOB
+#    define IPP_SUSPEND_CURRENT_JOB		IPP_OP_SUSPEND_CURRENT_JOB
+#    define IPP_RESUME_JOB			IPP_OP_RESUME_JOB
+#    define IPP_PROMOTE_JOB			IPP_OP_PROMOTE_JOB
+#    define IPP_SCHEDULE_JOB_AFTER		IPP_OP_SCHEDULE_JOB_AFTER
+#    define IPP_CANCEL_DOCUMENT			IPP_OP_CANCEL_DOCUMENT
+#    define IPP_GET_DOCUMENT_ATTRIBUTES		IPP_OP_GET_DOCUMENT_ATTRIBUTES
+#    define IPP_GET_DOCUMENTS			IPP_OP_GET_DOCUMENTS
+#    define IPP_DELETE_DOCUMENT			IPP_OP_DELETE_DOCUMENT
+#    define IPP_SET_DOCUMENT_ATTRIBUTES		IPP_OP_SET_DOCUMENT_ATTRIBUTES
+#    define IPP_CANCEL_JOBS			IPP_OP_CANCEL_JOBS
+#    define IPP_CANCEL_MY_JOBS			IPP_OP_CANCEL_MY_JOBS
+#    define IPP_RESUBMIT_JOB			IPP_OP_RESUBMIT_JOB
+#    define IPP_CLOSE_JOB			IPP_OP_CLOSE_JOB
+#    define IPP_IDENTIFY_PRINTER		IPP_OP_IDENTIFY_PRINTER
+#    define IPP_VALIDATE_DOCUMENT		IPP_OP_VALIDATE_DOCUMENT
+#    define IPP_OP_SEND_HARDCOPY_DOCUMENT	IPP_OP_ADD_DOCUMENT_IMAGES
+#    define IPP_PRIVATE				IPP_OP_PRIVATE
+#    define CUPS_GET_DEFAULT			IPP_OP_CUPS_GET_DEFAULT
+#    define CUPS_GET_PRINTERS			IPP_OP_CUPS_GET_PRINTERS
+#    define CUPS_ADD_MODIFY_PRINTER		IPP_OP_CUPS_ADD_MODIFY_PRINTER
+#    define CUPS_DELETE_PRINTER			IPP_OP_CUPS_DELETE_PRINTER
+#    define CUPS_GET_CLASSES			IPP_OP_CUPS_GET_CLASSES
+#    define CUPS_ADD_MODIFY_CLASS		IPP_OP_CUPS_ADD_MODIFY_CLASS
+#    define CUPS_DELETE_CLASS			IPP_OP_CUPS_DELETE_CLASS
+#    define CUPS_ACCEPT_JOBS			IPP_OP_CUPS_ACCEPT_JOBS
+#    define CUPS_REJECT_JOBS			IPP_OP_CUPS_REJECT_JOBS
+#    define CUPS_SET_DEFAULT			IPP_OP_CUPS_SET_DEFAULT
+#    define CUPS_GET_DEVICES			IPP_OP_CUPS_GET_DEVICES
+#    define CUPS_GET_PPDS			IPP_OP_CUPS_GET_PPDS
+#    define CUPS_MOVE_JOB			IPP_OP_CUPS_MOVE_JOB
+#    define CUPS_AUTHENTICATE_JOB		IPP_OP_CUPS_AUTHENTICATE_JOB
+#    define CUPS_GET_PPD			IPP_OP_CUPS_GET_PPD
+#    define CUPS_GET_DOCUMENT			IPP_OP_CUPS_GET_DOCUMENT
+     /* Legacy names */
+#    define CUPS_ADD_PRINTER			IPP_OP_CUPS_ADD_MODIFY_PRINTER
+#    define CUPS_ADD_CLASS			IPP_OP_CUPS_ADD_MODIFY_CLASS
+#  endif /* !_CUPS_NO_DEPRECATED */
+} ipp_op_t;
+
+typedef enum ipp_orient_e		/**** Orientation values ****/
+{
+  IPP_ORIENT_PORTRAIT = 3,		/* No rotation */
+  IPP_ORIENT_LANDSCAPE,			/* 90 degrees counter-clockwise */
+  IPP_ORIENT_REVERSE_LANDSCAPE,		/* 90 degrees clockwise */
+  IPP_ORIENT_REVERSE_PORTRAIT,		/* 180 degrees */
+  IPP_ORIENT_NONE			/* No rotation */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define IPP_PORTRAIT		IPP_ORIENT_PORTRAIT
+#    define IPP_LANDSCAPE		IPP_ORIENT_LANDSCAPE
+#    define IPP_REVERSE_LANDSCAPE	IPP_ORIENT_REVERSE_LANDSCAPE
+#    define IPP_REVERSE_PORTRAIT	IPP_ORIENT_REVERSE_PORTRAIT
+#  endif /* !_CUPS_NO_DEPRECATED */
+} ipp_orient_t;
+
+typedef enum ipp_pstate_e		/**** Printer state values ****/
+{
+  IPP_PSTATE_IDLE = 3,			/* Printer is idle */
+  IPP_PSTATE_PROCESSING,		/* Printer is working */
+  IPP_PSTATE_STOPPED			/* Printer is stopped */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define IPP_PRINTER_IDLE		IPP_PSTATE_IDLE
+#    define IPP_PRINTER_PROCESSING	IPP_PSTATE_PROCESSING
+#    define IPP_PRINTER_STOPPED		IPP_PSTATE_STOPPED
+#  endif /* _CUPS_NO_DEPRECATED */
+} ipp_pstate_t;
+
+typedef enum ipp_quality_e		/**** Print quality values ****/
+{
+  IPP_QUALITY_DRAFT = 3,		/* Draft quality */
+  IPP_QUALITY_NORMAL,			/* Normal quality */
+  IPP_QUALITY_HIGH			/* High quality */
+} ipp_quality_t;
+
+typedef enum ipp_res_e			/**** Resolution units ****/
+{
+  IPP_RES_PER_INCH = 3,			/* Pixels per inch */
+  IPP_RES_PER_CM			/* Pixels per centimeter */
+} ipp_res_t;
+
+typedef enum ipp_rstate_e		/**** resource-state values ****/
+{
+  IPP_RSTATE_PENDING = 3,		/* Resource is created but has no data yet. */
+  IPP_RSTATE_AVAILABLE,			/* Resource is available for installation. */
+  IPP_RSTATE_INSTALLED,			/* Resource is installed.  */
+  IPP_RSTATE_CANCELED,			/* Resource has been canceled and is pending deletion. */
+  IPP_RSTATE_ABORTED			/* Resource has been aborted and is pending deletion. */
+} ipp_rstate_t;
+
+typedef enum ipp_sstate_e		/**** system-state values ****/
+{
+  IPP_SSTATE_IDLE = 3,			/* At least one printer is idle and none are processing a job. */
+  IPP_SSTATE_PROCESSING,		/* At least one printer is processing a job. */
+  IPP_SSTATE_STOPPED			/* All printers are stopped. */
+} ipp_sstate_t;
+
+typedef enum ipp_state_e		/**** ipp_t state values ****/
+{
+  IPP_STATE_ERROR = -1,			/* An error occurred */
+  IPP_STATE_IDLE,			/* Nothing is happening/request completed */
+  IPP_STATE_HEADER,			/* The request header needs to be sent/received */
+  IPP_STATE_ATTRIBUTE,			/* One or more attributes need to be sent/received */
+  IPP_STATE_DATA			/* IPP request data needs to be sent/received */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define IPP_ERROR		IPP_STATE_ERROR
+#    define IPP_IDLE		IPP_STATE_IDLE
+#    define IPP_HEADER		IPP_STATE_HEADER
+#    define IPP_ATTRIBUTE	IPP_STATE_ATTRIBUTE
+#    define IPP_DATA		IPP_STATE_DATA
+#  endif /* !_CUPS_NO_DEPRECATED */
+} ipp_state_t;
+
+typedef enum ipp_status_e		/**** IPP status code values ****/
+{
+  IPP_STATUS_CUPS_INVALID = -1,		/* Invalid status name for @link ippErrorValue@ */
+  IPP_STATUS_OK = 0x0000,		/* successful-ok */
+  IPP_STATUS_OK_IGNORED_OR_SUBSTITUTED,	/* successful-ok-ignored-or-substituted-attributes */
+  IPP_STATUS_OK_CONFLICTING,		/* successful-ok-conflicting-attributes */
+  IPP_STATUS_OK_IGNORED_SUBSCRIPTIONS,	/* successful-ok-ignored-subscriptions */
+  IPP_STATUS_OK_IGNORED_NOTIFICATIONS,	/* successful-ok-ignored-notifications @private@ */
+  IPP_STATUS_OK_TOO_MANY_EVENTS,	/* successful-ok-too-many-events */
+  IPP_STATUS_OK_BUT_CANCEL_SUBSCRIPTION,/* successful-ok-but-cancel-subscription @private@ */
+  IPP_STATUS_OK_EVENTS_COMPLETE,	/* successful-ok-events-complete */
+  IPP_STATUS_REDIRECTION_OTHER_SITE = 0x0200,
+					/* redirection-other-site @private@ */
+  IPP_STATUS_CUPS_SEE_OTHER = 0x0280,	/* cups-see-other @private@ */
+  IPP_STATUS_ERROR_BAD_REQUEST = 0x0400,/* client-error-bad-request */
+  IPP_STATUS_ERROR_FORBIDDEN,		/* client-error-forbidden */
+  IPP_STATUS_ERROR_NOT_AUTHENTICATED,	/* client-error-not-authenticated */
+  IPP_STATUS_ERROR_NOT_AUTHORIZED,	/* client-error-not-authorized */
+  IPP_STATUS_ERROR_NOT_POSSIBLE,	/* client-error-not-possible */
+  IPP_STATUS_ERROR_TIMEOUT,		/* client-error-timeout */
+  IPP_STATUS_ERROR_NOT_FOUND,		/* client-error-not-found */
+  IPP_STATUS_ERROR_GONE,		/* client-error-gone */
+  IPP_STATUS_ERROR_REQUEST_ENTITY,	/* client-error-request-entity-too-large */
+  IPP_STATUS_ERROR_REQUEST_VALUE,	/* client-error-request-value-too-long */
+  IPP_STATUS_ERROR_DOCUMENT_FORMAT_NOT_SUPPORTED,
+					/* client-error-document-format-not-supported */
+  IPP_STATUS_ERROR_ATTRIBUTES_OR_VALUES,/* client-error-attributes-or-values-not-supported */
+  IPP_STATUS_ERROR_URI_SCHEME,		/* client-error-uri-scheme-not-supported */
+  IPP_STATUS_ERROR_CHARSET,		/* client-error-charset-not-supported */
+  IPP_STATUS_ERROR_CONFLICTING,		/* client-error-conflicting-attributes */
+  IPP_STATUS_ERROR_COMPRESSION_NOT_SUPPORTED,
+					/* client-error-compression-not-supported */
+  IPP_STATUS_ERROR_COMPRESSION_ERROR,	/* client-error-compression-error */
+  IPP_STATUS_ERROR_DOCUMENT_FORMAT_ERROR,
+					/* client-error-document-format-error */
+  IPP_STATUS_ERROR_DOCUMENT_ACCESS,	/* client-error-document-access-error */
+  IPP_STATUS_ERROR_ATTRIBUTES_NOT_SETTABLE,
+					/* client-error-attributes-not-settable */
+  IPP_STATUS_ERROR_IGNORED_ALL_SUBSCRIPTIONS,
+					/* client-error-ignored-all-subscriptions */
+  IPP_STATUS_ERROR_TOO_MANY_SUBSCRIPTIONS,
+					/* client-error-too-many-subscriptions */
+  IPP_STATUS_ERROR_IGNORED_ALL_NOTIFICATIONS,
+					/* client-error-ignored-all-notifications @private@ */
+  IPP_STATUS_ERROR_PRINT_SUPPORT_FILE_NOT_FOUND,
+					/* client-error-print-support-file-not-found @private@ */
+  IPP_STATUS_ERROR_DOCUMENT_PASSWORD,	/* client-error-document-password-error */
+  IPP_STATUS_ERROR_DOCUMENT_PERMISSION,	/* client-error-document-permission-error */
+  IPP_STATUS_ERROR_DOCUMENT_SECURITY,	/* client-error-document-security-error */
+  IPP_STATUS_ERROR_DOCUMENT_UNPRINTABLE,/* client-error-document-unprintable-error */
+  IPP_STATUS_ERROR_ACCOUNT_INFO_NEEDED,	/* client-error-account-info-needed */
+  IPP_STATUS_ERROR_ACCOUNT_CLOSED,	/* client-error-account-closed */
+  IPP_STATUS_ERROR_ACCOUNT_LIMIT_REACHED,
+					/* client-error-account-limit-reached */
+  IPP_STATUS_ERROR_ACCOUNT_AUTHORIZATION_FAILED,
+					/* client-error-account-authorization-failed */
+  IPP_STATUS_ERROR_NOT_FETCHABLE,	/* client-error-not-fetchable */
+
+  /* Legacy status codes for paid printing */
+  IPP_STATUS_ERROR_CUPS_ACCOUNT_INFO_NEEDED = 0x049C,
+					/* cups-error-account-info-needed @deprecated@ */
+  IPP_STATUS_ERROR_CUPS_ACCOUNT_CLOSED,	/* cups-error-account-closed @deprecate@ */
+  IPP_STATUS_ERROR_CUPS_ACCOUNT_LIMIT_REACHED,
+					/* cups-error-account-limit-reached @deprecated@ */
+  IPP_STATUS_ERROR_CUPS_ACCOUNT_AUTHORIZATION_FAILED,
+					/* cups-error-account-authorization-failed @deprecated@ */
+
+  IPP_STATUS_ERROR_INTERNAL = 0x0500,	/* server-error-internal-error */
+  IPP_STATUS_ERROR_OPERATION_NOT_SUPPORTED,
+					/* server-error-operation-not-supported */
+  IPP_STATUS_ERROR_SERVICE_UNAVAILABLE,	/* server-error-service-unavailable */
+  IPP_STATUS_ERROR_VERSION_NOT_SUPPORTED,
+					/* server-error-version-not-supported */
+  IPP_STATUS_ERROR_DEVICE,		/* server-error-device-error */
+  IPP_STATUS_ERROR_TEMPORARY,		/* server-error-temporary-error */
+  IPP_STATUS_ERROR_NOT_ACCEPTING_JOBS,	/* server-error-not-accepting-jobs */
+  IPP_STATUS_ERROR_BUSY,		/* server-error-busy */
+  IPP_STATUS_ERROR_JOB_CANCELED,	/* server-error-job-canceled */
+  IPP_STATUS_ERROR_MULTIPLE_JOBS_NOT_SUPPORTED,
+					/* server-error-multiple-document-jobs-not-supported */
+  IPP_STATUS_ERROR_PRINTER_IS_DEACTIVATED,
+					/* server-error-printer-is-deactivated */
+  IPP_STATUS_ERROR_TOO_MANY_JOBS,	/* server-error-too-many-jobs */
+  IPP_STATUS_ERROR_TOO_MANY_DOCUMENTS,	/* server-error-too-many-documents */
+
+  /* These are internal and never sent over the wire... */
+  IPP_STATUS_ERROR_CUPS_AUTHENTICATION_CANCELED = 0x1000,
+					/* cups-authentication-canceled - Authentication canceled by user @since CUPS 1.5/macOS 10.7@ */
+  IPP_STATUS_ERROR_CUPS_PKI,		/* cups-pki-error - Error negotiating a secure connection @since CUPS 1.5/macOS 10.7@ */
+  IPP_STATUS_ERROR_CUPS_UPGRADE_REQUIRED/* cups-upgrade-required - TLS upgrade required @since CUPS 1.5/macOS 10.7@ */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define IPP_OK				IPP_STATUS_OK
+#    define IPP_OK_SUBST			IPP_STATUS_OK_IGNORED_OR_SUBSTITUTED
+#    define IPP_OK_CONFLICT			IPP_STATUS_OK_CONFLICTING
+#    define IPP_OK_IGNORED_SUBSCRIPTIONS	IPP_STATUS_OK_IGNORED_SUBSCRIPTIONS
+#    define IPP_OK_IGNORED_NOTIFICATIONS	IPP_STATUS_OK_IGNORED_NOTIFICATIONS
+#    define IPP_OK_TOO_MANY_EVENTS		IPP_STATUS_OK_TOO_MANY_EVENTS
+#    define IPP_OK_BUT_CANCEL_SUBSCRIPTION	IPP_STATUS_OK_BUT_CANCEL_SUBSCRIPTION
+#    define IPP_OK_EVENTS_COMPLETE		IPP_STATUS_OK_EVENTS_COMPLETE
+#    define IPP_REDIRECTION_OTHER_SITE		IPP_STATUS_REDIRECTION_OTHER_SITE
+#    define CUPS_SEE_OTHER			IPP_STATUS_CUPS_SEE_OTHER
+#    define IPP_BAD_REQUEST			IPP_STATUS_ERROR_BAD_REQUEST
+#    define IPP_FORBIDDEN			IPP_STATUS_ERROR_FORBIDDEN
+#    define IPP_NOT_AUTHENTICATED		IPP_STATUS_ERROR_NOT_AUTHENTICATED
+#    define IPP_NOT_AUTHORIZED			IPP_STATUS_ERROR_NOT_AUTHORIZED
+#    define IPP_NOT_POSSIBLE			IPP_STATUS_ERROR_NOT_POSSIBLE
+#    define IPP_TIMEOUT				IPP_STATUS_ERROR_TIMEOUT
+#    define IPP_NOT_FOUND			IPP_STATUS_ERROR_NOT_FOUND
+#    define IPP_GONE				IPP_STATUS_ERROR_GONE
+#    define IPP_REQUEST_ENTITY			IPP_STATUS_ERROR_REQUEST_ENTITY
+#    define IPP_REQUEST_VALUE			IPP_STATUS_ERROR_REQUEST_VALUE
+#    define IPP_DOCUMENT_FORMAT			IPP_STATUS_ERROR_DOCUMENT_FORMAT_NOT_SUPPORTED
+#    define IPP_ATTRIBUTES			IPP_STATUS_ERROR_ATTRIBUTES_OR_VALUES
+#    define IPP_URI_SCHEME			IPP_STATUS_ERROR_URI_SCHEME
+#    define IPP_CHARSET				IPP_STATUS_ERROR_CHARSET
+#    define IPP_CONFLICT			IPP_STATUS_ERROR_CONFLICTING
+#    define IPP_COMPRESSION_NOT_SUPPORTED	IPP_STATUS_ERROR_COMPRESSION_NOT_SUPPORTED
+#    define IPP_COMPRESSION_ERROR		IPP_STATUS_ERROR_COMPRESSION_ERROR
+#    define IPP_DOCUMENT_FORMAT_ERROR		IPP_STATUS_ERROR_DOCUMENT_FORMAT_ERROR
+#    define IPP_DOCUMENT_ACCESS_ERROR		IPP_STATUS_ERROR_DOCUMENT_ACCESS
+#    define IPP_ATTRIBUTES_NOT_SETTABLE		IPP_STATUS_ERROR_ATTRIBUTES_NOT_SETTABLE
+#    define IPP_IGNORED_ALL_SUBSCRIPTIONS	IPP_STATUS_ERROR_IGNORED_ALL_SUBSCRIPTIONS
+#    define IPP_TOO_MANY_SUBSCRIPTIONS		IPP_STATUS_ERROR_TOO_MANY_SUBSCRIPTIONS
+#    define IPP_IGNORED_ALL_NOTIFICATIONS	IPP_STATUS_ERROR_IGNORED_ALL_NOTIFICATIONS
+#    define IPP_PRINT_SUPPORT_FILE_NOT_FOUND	IPP_STATUS_ERROR_PRINT_SUPPORT_FILE_NOT_FOUND
+#    define IPP_DOCUMENT_PASSWORD_ERROR		IPP_STATUS_ERROR_DOCUMENT_PASSWORD
+#    define IPP_DOCUMENT_PERMISSION_ERROR	IPP_STATUS_ERROR_DOCUMENT_PERMISSION
+#    define IPP_DOCUMENT_SECURITY_ERROR		IPP_STATUS_ERROR_DOCUMENT_SECURITY
+#    define IPP_DOCUMENT_UNPRINTABLE_ERROR	IPP_STATUS_ERROR_DOCUMENT_UNPRINTABLE
+#    define IPP_INTERNAL_ERROR			IPP_STATUS_ERROR_INTERNAL
+#    define IPP_OPERATION_NOT_SUPPORTED		IPP_STATUS_ERROR_OPERATION_NOT_SUPPORTED
+#    define IPP_SERVICE_UNAVAILABLE		IPP_STATUS_ERROR_SERVICE_UNAVAILABLE
+#    define IPP_VERSION_NOT_SUPPORTED		IPP_STATUS_ERROR_VERSION_NOT_SUPPORTED
+#    define IPP_DEVICE_ERROR			IPP_STATUS_ERROR_DEVICE
+#    define IPP_TEMPORARY_ERROR			IPP_STATUS_ERROR_TEMPORARY
+#    define IPP_NOT_ACCEPTING			IPP_STATUS_ERROR_NOT_ACCEPTING_JOBS
+#    define IPP_PRINTER_BUSY			IPP_STATUS_ERROR_BUSY
+#    define IPP_ERROR_JOB_CANCELED		IPP_STATUS_ERROR_JOB_CANCELED
+#    define IPP_MULTIPLE_JOBS_NOT_SUPPORTED	IPP_STATUS_ERROR_MULTIPLE_JOBS_NOT_SUPPORTED
+#    define IPP_PRINTER_IS_DEACTIVATED		IPP_STATUS_ERROR_PRINTER_IS_DEACTIVATED
+#    define IPP_TOO_MANY_JOBS			IPP_STATUS_ERROR_TOO_MANY_JOBS
+#    define IPP_TOO_MANY_DOCUMENTS		IPP_STATUS_ERROR_TOO_MANY_DOCUMENTS
+#    define IPP_AUTHENTICATION_CANCELED		IPP_STATUS_ERROR_CUPS_AUTHENTICATION_CANCELED
+#    define IPP_PKI_ERROR			IPP_STATUS_ERROR_CUPS_PKI
+#    define IPP_UPGRADE_REQUIRED		IPP_STATUS_ERROR_CUPS_UPGRADE_REQUIRED
+     /* Legacy name for canceled status */
+#    define IPP_ERROR_JOB_CANCELLED		IPP_STATUS_ERROR_JOB_CANCELED
+#  endif /* _CUPS_NO_DEPRECATED */
+} ipp_status_t;
+
+typedef enum ipp_tag_e			/**** Value and group tag values for attributes ****/
+{
+  IPP_TAG_CUPS_INVALID = -1,		/* Invalid tag name for @link ippTagValue@ */
+  IPP_TAG_ZERO = 0x00,			/* Zero tag - used for separators */
+  IPP_TAG_OPERATION,			/* Operation group */
+  IPP_TAG_JOB,				/* Job group */
+  IPP_TAG_END,				/* End-of-attributes */
+  IPP_TAG_PRINTER,			/* Printer group */
+  IPP_TAG_UNSUPPORTED_GROUP,		/* Unsupported attributes group */
+  IPP_TAG_SUBSCRIPTION,			/* Subscription group */
+  IPP_TAG_EVENT_NOTIFICATION,		/* Event group */
+  IPP_TAG_RESOURCE,			/* Resource group */
+  IPP_TAG_DOCUMENT,			/* Document group */
+  IPP_TAG_SYSTEM,                       /* System group */
+  IPP_TAG_UNSUPPORTED_VALUE = 0x10,	/* Unsupported value */
+  IPP_TAG_DEFAULT,			/* Default value */
+  IPP_TAG_UNKNOWN,			/* Unknown value */
+  IPP_TAG_NOVALUE,			/* No-value value */
+  IPP_TAG_NOTSETTABLE = 0x15,		/* Not-settable value */
+  IPP_TAG_DELETEATTR,			/* Delete-attribute value */
+  IPP_TAG_ADMINDEFINE,			/* Admin-defined value */
+  IPP_TAG_INTEGER = 0x21,		/* Integer value */
+  IPP_TAG_BOOLEAN,			/* Boolean value */
+  IPP_TAG_ENUM,				/* Enumeration value */
+  IPP_TAG_STRING = 0x30,		/* Octet string value */
+  IPP_TAG_DATE,				/* Date/time value */
+  IPP_TAG_RESOLUTION,			/* Resolution value */
+  IPP_TAG_RANGE,			/* Range value */
+  IPP_TAG_BEGIN_COLLECTION,		/* Beginning of collection value @exclude all@ */
+  IPP_TAG_TEXTLANG,			/* Text-with-language value */
+  IPP_TAG_NAMELANG,			/* Name-with-language value */
+  IPP_TAG_END_COLLECTION,		/* End of collection value @exclude all@ */
+  IPP_TAG_TEXT = 0x41,			/* Text value */
+  IPP_TAG_NAME,				/* Name value */
+  IPP_TAG_RESERVED_STRING,		/* Reserved for future string value @private@ */
+  IPP_TAG_KEYWORD,			/* Keyword value */
+  IPP_TAG_URI,				/* URI value */
+  IPP_TAG_URISCHEME,			/* URI scheme value */
+  IPP_TAG_CHARSET,			/* Character set value */
+  IPP_TAG_LANGUAGE,			/* Language value */
+  IPP_TAG_MIMETYPE,			/* MIME media type value */
+  IPP_TAG_MEMBERNAME,			/* Collection member name value @exclude all@ */
+  IPP_TAG_EXTENSION = 0x7f,		/* Extension point for 32-bit tags @exclude all@ */
+  IPP_TAG_CUPS_MASK = 0x7fffffff,	/* Mask for copied attribute values @private@ */
+  /* The following expression is used to avoid compiler warnings with +/-0x80000000 */
+  IPP_TAG_CUPS_CONST = -0x7fffffff-1	/* Bitflag for copied/const attribute values @private@ */
+
+#  ifndef _CUPS_NO_DEPRECATED
+#    define IPP_TAG_MASK		IPP_TAG_CUPS_MASK
+#    define IPP_TAG_COPY		IPP_TAG_CUPS_CONST
+#  endif /* !_CUPS_NO_DEPRECATED */
+} ipp_tag_t;
+
+typedef unsigned char ipp_uchar_t;	/**** Unsigned 8-bit integer/character @exclude all@ ****/
+typedef struct _ipp_s ipp_t;		/**** IPP request/response data ****/
+typedef struct _ipp_attribute_s ipp_attribute_t;
+					/**** IPP attribute ****/
+
+/**** New in CUPS 1.2/macOS 10.5 ****/
+typedef ssize_t	(*ipp_iocb_t)(void *context, ipp_uchar_t *buffer, size_t bytes);
+					/**** ippReadIO/ippWriteIO callback function @since CUPS 1.2/macOS 10.5@ ****/
+
+/**** New in CUPS 1.6/macOS 10.8 ****/
+typedef int (*ipp_copycb_t)(void *context, ipp_t *dst, ipp_attribute_t *attr);
+                                        /**** ippCopyAttributes callback function @since CUPS 1.6/macOS 10.8 ****/
+
+
+/*
+ * Prototypes...
+ */
+
+extern ipp_attribute_t	*ippAddBoolean(ipp_t *ipp, ipp_tag_t group,
+			               const char *name, char value) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddBooleans(ipp_t *ipp, ipp_tag_t group,
+			                const char *name, int num_values,
+					const char *values) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddDate(ipp_t *ipp, ipp_tag_t group,
+			            const char *name, const ipp_uchar_t *value) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddInteger(ipp_t *ipp, ipp_tag_t group,
+			               ipp_tag_t value_tag, const char *name,
+				       int value) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddIntegers(ipp_t *ipp, ipp_tag_t group,
+			                ipp_tag_t value_tag, const char *name,
+					int num_values, const int *values) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddRange(ipp_t *ipp, ipp_tag_t group,
+			             const char *name, int lower, int upper) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddRanges(ipp_t *ipp, ipp_tag_t group,
+			              const char *name, int num_values,
+				      const int *lower, const int *upper) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddResolution(ipp_t *ipp, ipp_tag_t group,
+			                  const char *name, ipp_res_t units,
+					  int xres, int yres) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddResolutions(ipp_t *ipp, ipp_tag_t group,
+			                   const char *name, int num_values,
+					   ipp_res_t units, const int *xres,
+					   const int *yres) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddSeparator(ipp_t *ipp) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddString(ipp_t *ipp, ipp_tag_t group,
+			              ipp_tag_t value_tag, const char *name,
+				      const char *language, const char *value) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippAddStrings(ipp_t *ipp, ipp_tag_t group,
+			               ipp_tag_t value_tag, const char *name,
+				       int num_values, const char *language,
+				       const char * const *values) _CUPS_PUBLIC;
+extern time_t		ippDateToTime(const ipp_uchar_t *date) _CUPS_PUBLIC;
+extern void		ippDelete(ipp_t *ipp) _CUPS_PUBLIC;
+extern const char	*ippErrorString(ipp_status_t error) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippFindAttribute(ipp_t *ipp, const char *name,
+			                  ipp_tag_t value_tag) _CUPS_PUBLIC;
+extern ipp_attribute_t	*ippFindNextAttribute(ipp_t *ipp, const char *name,
+			                      ipp_tag_t value_tag) _CUPS_PUBLIC;
+extern size_t		ippLength(ipp_t *ipp) _CUPS_PUBLIC;
+extern ipp_t		*ippNew(void) _CUPS_PUBLIC;
+extern ipp_state_t	ippRead(http_t *http, ipp_t *ipp) _CUPS_PUBLIC;
+extern const ipp_uchar_t *ippTimeToDate(time_t t) _CUPS_PUBLIC;
+extern ipp_state_t	ippWrite(http_t *http, ipp_t *ipp) _CUPS_PUBLIC;
+extern int		ippPort(void) _CUPS_PUBLIC;
+extern void		ippSetPort(int p) _CUPS_PUBLIC;
+
+/**** New in CUPS 1.1.19 ****/
+extern ipp_attribute_t	*ippAddCollection(ipp_t *ipp, ipp_tag_t group,
+			                  const char *name, ipp_t *value) _CUPS_API_1_1_19;
+extern ipp_attribute_t	*ippAddCollections(ipp_t *ipp, ipp_tag_t group,
+			                   const char *name, int num_values,
+					   const ipp_t **values) _CUPS_API_1_1_19;
+extern void		ippDeleteAttribute(ipp_t *ipp, ipp_attribute_t *attr) _CUPS_API_1_1_19;
+extern ipp_state_t	ippReadFile(int fd, ipp_t *ipp) _CUPS_API_1_1_19;
+extern ipp_state_t	ippWriteFile(int fd, ipp_t *ipp) _CUPS_API_1_1_19;
+
+/**** New in CUPS 1.2/macOS 10.5 ****/
+extern ipp_attribute_t	*ippAddOctetString(ipp_t *ipp, ipp_tag_t group,
+			                   const char *name,
+					   const void *data, int datalen) _CUPS_API_1_2;
+extern ipp_status_t	ippErrorValue(const char *name) _CUPS_API_1_2;
+extern ipp_t		*ippNewRequest(ipp_op_t op) _CUPS_API_1_2;
+extern const char	*ippOpString(ipp_op_t op) _CUPS_API_1_2;
+extern ipp_op_t		ippOpValue(const char *name) _CUPS_API_1_2;
+extern ipp_state_t	ippReadIO(void *src, ipp_iocb_t cb, int blocking,
+			          ipp_t *parent, ipp_t *ipp) _CUPS_API_1_2;
+extern ipp_state_t	ippWriteIO(void *dst, ipp_iocb_t cb, int blocking,
+			           ipp_t *parent, ipp_t *ipp) _CUPS_API_1_2;
+
+/**** New in CUPS 1.4/macOS 10.6 ****/
+extern const char	*ippTagString(ipp_tag_t tag) _CUPS_API_1_4;
+extern ipp_tag_t	ippTagValue(const char *name) _CUPS_API_1_4;
+
+/**** New in CUPS 1.6/macOS 10.8 ****/
+extern ipp_attribute_t	*ippAddOutOfBand(ipp_t *ipp, ipp_tag_t group,
+			                 ipp_tag_t value_tag, const char *name)
+			                 _CUPS_API_1_6;
+extern size_t		ippAttributeString(ipp_attribute_t *attr, char *buffer,
+			                   size_t bufsize) _CUPS_API_1_6;
+extern ipp_attribute_t	*ippCopyAttribute(ipp_t *dst, ipp_attribute_t *attr,
+			                 int quickcopy) _CUPS_API_1_6;
+extern int		ippCopyAttributes(ipp_t *dst, ipp_t *src,
+			                  int quickcopy, ipp_copycb_t cb,
+			                  void *context) _CUPS_API_1_6;
+extern int		ippDeleteValues(ipp_t *ipp, ipp_attribute_t **attr,
+			                int element, int count) _CUPS_API_1_6;
+extern const char	*ippEnumString(const char *attrname, int enumvalue)
+			               _CUPS_API_1_6;
+extern int		ippEnumValue(const char *attrname,
+			             const char *enumstring) _CUPS_API_1_6;
+extern ipp_attribute_t	*ippFirstAttribute(ipp_t *ipp) _CUPS_API_1_6;
+extern int		ippGetBoolean(ipp_attribute_t *attr, int element)
+			              _CUPS_API_1_6;
+extern ipp_t		*ippGetCollection(ipp_attribute_t *attr,
+			                  int element) _CUPS_API_1_6;
+extern int		ippGetCount(ipp_attribute_t *attr) _CUPS_API_1_6;
+extern const ipp_uchar_t *ippGetDate(ipp_attribute_t *attr, int element)
+			             _CUPS_API_1_6;
+extern ipp_tag_t	ippGetGroupTag(ipp_attribute_t *attr) _CUPS_API_1_6;
+extern int		ippGetInteger(ipp_attribute_t *attr, int element)
+			              _CUPS_API_1_6;
+extern const char	*ippGetName(ipp_attribute_t *attr) _CUPS_API_1_6;
+extern ipp_op_t		ippGetOperation(ipp_t *ipp) _CUPS_API_1_6;
+extern int		ippGetRange(ipp_attribute_t *attr, int element,
+			            int *upper) _CUPS_API_1_6;
+extern int		ippGetRequestId(ipp_t *ipp) _CUPS_API_1_6;
+extern int		ippGetResolution(ipp_attribute_t *attr, int element,
+			                 int *yres, ipp_res_t *units)
+			                 _CUPS_API_1_6;
+extern ipp_state_t	ippGetState(ipp_t *ipp) _CUPS_API_1_6;
+extern ipp_status_t	ippGetStatusCode(ipp_t *ipp) _CUPS_API_1_6;
+extern const char	*ippGetString(ipp_attribute_t *attr, int element,
+				      const char **language) _CUPS_API_1_6;
+extern ipp_tag_t	ippGetValueTag(ipp_attribute_t *attr) _CUPS_API_1_6;
+extern int		ippGetVersion(ipp_t *ipp, int *minor) _CUPS_API_1_6;
+extern ipp_attribute_t	*ippNextAttribute(ipp_t *ipp) _CUPS_API_1_6;
+extern int		ippSetBoolean(ipp_t *ipp, ipp_attribute_t **attr,
+			              int element, int boolvalue) _CUPS_API_1_6;
+extern int		ippSetCollection(ipp_t *ipp, ipp_attribute_t **attr,
+			                 int element, ipp_t *colvalue)
+			                 _CUPS_API_1_6;
+extern int		ippSetDate(ipp_t *ipp, ipp_attribute_t **attr,
+			            int element, const ipp_uchar_t *datevalue)
+				    _CUPS_API_1_6;
+extern int		ippSetGroupTag(ipp_t *ipp, ipp_attribute_t **attr,
+			               ipp_tag_t group_tag) _CUPS_API_1_6;
+extern int		ippSetInteger(ipp_t *ipp, ipp_attribute_t **attr,
+			              int element, int intvalue) _CUPS_API_1_6;
+extern int		ippSetName(ipp_t *ipp, ipp_attribute_t **attr,
+			            const char *name) _CUPS_API_1_6;
+extern int		ippSetOperation(ipp_t *ipp, ipp_op_t op) _CUPS_API_1_6;
+extern int		ippSetRange(ipp_t *ipp, ipp_attribute_t **attr,
+			            int element, int lowervalue, int uppervalue)
+			            _CUPS_API_1_6;
+extern int		ippSetRequestId(ipp_t *ipp, int request_id)
+			                _CUPS_API_1_6;
+extern int		ippSetResolution(ipp_t *ipp, ipp_attribute_t **attr,
+			                 int element, ipp_res_t unitsvalue,
+			                 int xresvalue, int yresvalue)
+			                 _CUPS_API_1_6;
+extern int		ippSetState(ipp_t *ipp, ipp_state_t state)
+			            _CUPS_API_1_6;
+extern int		ippSetStatusCode(ipp_t *ipp, ipp_status_t status)
+			                 _CUPS_API_1_6;
+extern int		ippSetString(ipp_t *ipp, ipp_attribute_t **attr,
+			             int element, const char *strvalue)
+			             _CUPS_API_1_6;
+extern int		ippSetValueTag(ipp_t *ipp, ipp_attribute_t **attr,
+			               ipp_tag_t value_tag) _CUPS_API_1_6;
+extern int		ippSetVersion(ipp_t *ipp, int major, int minor)
+			              _CUPS_API_1_6;
+
+/**** New in CUPS 1.7 ****/
+extern ipp_attribute_t	*ippAddStringf(ipp_t *ipp, ipp_tag_t group,
+			               ipp_tag_t value_tag, const char *name,
+			               const char *language, const char *format,
+			               ...) _CUPS_API_1_7;
+extern ipp_attribute_t	*ippAddStringfv(ipp_t *ipp, ipp_tag_t group,
+					ipp_tag_t value_tag, const char *name,
+					const char *language,
+					const char *format, va_list ap)
+					_CUPS_API_1_7;
+extern int		ippContainsInteger(ipp_attribute_t *attr, int value)
+			                   _CUPS_API_1_7;
+extern int		ippContainsString(ipp_attribute_t *attr,
+			                  const char *value) _CUPS_API_1_7;
+extern cups_array_t	*ippCreateRequestedArray(ipp_t *request) _CUPS_API_1_7;
+extern void		*ippGetOctetString(ipp_attribute_t *attr, int element,
+			                   int *datalen) _CUPS_API_1_7;
+extern ipp_t		*ippNewResponse(ipp_t *request) _CUPS_API_1_7;
+extern int		ippSetOctetString(ipp_t *ipp, ipp_attribute_t **attr,
+			                  int element, const void *data,
+					  int datalen) _CUPS_API_1_7;
+extern int		ippSetStringf(ipp_t *ipp, ipp_attribute_t **attr,
+			              int element, const char *format,
+				      ...) _CUPS_API_1_7;
+extern int		ippSetStringfv(ipp_t *ipp, ipp_attribute_t **attr,
+			               int element, const char *format,
+				       va_list ap) _CUPS_API_1_7;
+extern int		ippValidateAttribute(ipp_attribute_t *attr)
+			                     _CUPS_API_1_7;
+extern int		ippValidateAttributes(ipp_t *ipp) _CUPS_API_1_7;
+
+
+/**** New in CUPS 2.0 ****/
+extern const char	*ippStateString(ipp_state_t state) _CUPS_API_2_0;
+
+
+/*
+ * C++ magic...
+ */
+
+#  ifdef __cplusplus
+}
+#  endif /* __cplusplus */
+#endif /* !_CUPS_IPP_H_ */
diff --git a/third_party/cups/include/cups/language.h b/third_party/cups/include/cups/language.h
new file mode 100644
index 0000000000..b5ec7e1803
--- /dev/null
+++ b/third_party/cups/include/cups/language.h
@@ -0,0 +1,103 @@
+/*
+ * Multi-language support for CUPS.
+ *
+ * Copyright 2007-2011 by Apple Inc.
+ * Copyright 1997-2006 by Easy Software Products.
+ *
+ * Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
+ */
+
+#ifndef _CUPS_LANGUAGE_H_
+#  define _CUPS_LANGUAGE_H_
+
+/*
+ * Include necessary headers...
+ */
+
+#  include <locale.h>
+#  include "array.h"
+
+#  ifdef __cplusplus
+extern "C" {
+#  endif /* __cplusplus */
+
+
+/*
+ * Types...
+ */
+
+typedef enum cups_encoding_e		/**** Language Encodings @exclude all@ ****/
+{
+  CUPS_AUTO_ENCODING = -1,		/* Auto-detect the encoding @private@ */
+  CUPS_US_ASCII,			/* US ASCII */
+  CUPS_ISO8859_1,			/* ISO-8859-1 */
+  CUPS_ISO8859_2,			/* ISO-8859-2 */
+  CUPS_ISO8859_3,			/* ISO-8859-3 */
+  CUPS_ISO8859_4,			/* ISO-8859-4 */
+  CUPS_ISO8859_5,			/* ISO-8859-5 */
+  CUPS_ISO8859_6,			/* ISO-8859-6 */
+  CUPS_ISO8859_7,			/* ISO-8859-7 */
+  CUPS_ISO8859_8,			/* ISO-8859-8 */
+  CUPS_ISO8859_9,			/* ISO-8859-9 */
+  CUPS_ISO8859_10,			/* ISO-8859-10 */
+  CUPS_UTF8,				/* UTF-8 */
+  CUPS_ISO8859_13,			/* ISO-8859-13 */
+  CUPS_ISO8859_14,			/* ISO-8859-14 */
+  CUPS_ISO8859_15,			/* ISO-8859-15 */
+  CUPS_WINDOWS_874,			/* CP-874 */
+  CUPS_WINDOWS_1250,			/* CP-1250 */
+  CUPS_WINDOWS_1251,			/* CP-1251 */
+  CUPS_WINDOWS_1252,			/* CP-1252 */
+  CUPS_WINDOWS_1253,			/* CP-1253 */
+  CUPS_WINDOWS_1254,			/* CP-1254 */
+  CUPS_WINDOWS_1255,			/* CP-1255 */
+  CUPS_WINDOWS_1256,			/* CP-1256 */
+  CUPS_WINDOWS_1257,			/* CP-1257 */
+  CUPS_WINDOWS_1258,			/* CP-1258 */
+  CUPS_KOI8_R,				/* KOI-8-R */
+  CUPS_KOI8_U,				/* KOI-8-U */
+  CUPS_ISO8859_11,			/* ISO-8859-11 */
+  CUPS_ISO8859_16,			/* ISO-8859-16 */
+  CUPS_MAC_ROMAN,			/* MacRoman */
+  CUPS_ENCODING_SBCS_END = 63,		/* End of single-byte encodings @private@ */
+
+  CUPS_WINDOWS_932,			/* Japanese JIS X0208-1990 */
+  CUPS_WINDOWS_936,			/* Simplified Chinese GB 2312-80 */
+  CUPS_WINDOWS_949,			/* Korean KS C5601-1992 */
+  CUPS_WINDOWS_950,			/* Traditional Chinese Big Five */
+  CUPS_WINDOWS_1361,			/* Korean Johab */
+  CUPS_ENCODING_DBCS_END = 127,		/* End of double-byte encodings @private@ */
+
+  CUPS_EUC_CN,				/* EUC Simplified Chinese */
+  CUPS_EUC_JP,				/* EUC Japanese */
+  CUPS_EUC_KR,				/* EUC Korean */
+  CUPS_EUC_TW,				/* EUC Traditional Chinese */
+  CUPS_JIS_X0213,			/* JIS X0213 aka Shift JIS */
+  CUPS_ENCODING_VBCS_END = 191		/* End of variable-length encodings @private@ */
+} cups_encoding_t;
+
+typedef struct cups_lang_s		/**** Language Cache Structure ****/
+{
+  struct cups_lang_s	*next;		/* Next language in cache */
+  int			used;		/* Number of times this entry has been used. */
+  cups_encoding_t	encoding;	/* Text encoding */
+  char			language[16];	/* Language/locale name */
+  cups_array_t		*strings;	/* Message strings @private@ */
+} cups_lang_t;
+
+
+/*
+ * Prototypes...
+ */
+
+extern cups_lang_t	*cupsLangDefault(void) _CUPS_PUBLIC;
+extern const char	*cupsLangEncoding(cups_lang_t *lang) _CUPS_PUBLIC;
+extern void		cupsLangFlush(void) _CUPS_PUBLIC;
+extern void		cupsLangFree(cups_lang_t *lang) _CUPS_PUBLIC;
+extern cups_lang_t	*cupsLangGet(const char *language) _CUPS_PUBLIC;
+
+#  ifdef __cplusplus
+}
+#  endif /* __cplusplus */
+
+#endif /* !_CUPS_LANGUAGE_H_ */
diff --git a/third_party/cups/include/cups/pwg.h b/third_party/cups/include/cups/pwg.h
new file mode 100644
index 0000000000..2d30847635
--- /dev/null
+++ b/third_party/cups/include/cups/pwg.h
@@ -0,0 +1,82 @@
+/*
+ * PWG media API definitions for CUPS.
+ *
+ * Copyright 2009-2017 by Apple Inc.
+ *
+ * Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
+ */
+
+#ifndef _CUPS_PWG_H_
+#  define _CUPS_PWG_H_
+
+
+/*
+ * C++ magic...
+ */
+
+#  ifdef __cplusplus
+extern "C" {
+#  endif /* __cplusplus */
+
+
+/*
+ * Macros...
+ */
+
+/* Convert from points to hundredths of millimeters */
+#  define PWG_FROM_POINTS(n)	(int)(((n) * 2540 + 36) / 72)
+/* Convert from hundredths of millimeters to points */
+#  define PWG_TO_POINTS(n)	((n) * 72.0 / 2540.0)
+
+
+/*
+ * Types and structures...
+ */
+
+typedef struct pwg_map_s		/**** Map element - PPD to/from PWG @exclude all@ */
+{
+  char		*pwg,			/* PWG media keyword */
+		*ppd;			/* PPD option keyword */
+} pwg_map_t;
+
+typedef struct pwg_media_s		/**** Common media size data ****/
+{
+  const char	*pwg,			/* PWG 5101.1 "self describing" name */
+		*legacy,		/* IPP/ISO legacy name */
+		*ppd;			/* Standard Adobe PPD name */
+  int		width,			/* Width in 2540ths */
+		length;			/* Length in 2540ths */
+} pwg_media_t;
+
+typedef struct pwg_size_s		/**** Size element - PPD to/from PWG @exclude all@ */
+{
+  pwg_map_t	map;			/* Map element */
+  int		width,			/* Width in 2540ths */
+		length,			/* Length in 2540ths */
+		left,			/* Left margin in 2540ths */
+		bottom,			/* Bottom margin in 2540ths */
+		right,			/* Right margin in 2540ths */
+		top;			/* Top margin in 2540ths */
+} pwg_size_t;
+
+
+/*
+ * Functions...
+ */
+
+extern int		pwgFormatSizeName(char *keyword, size_t keysize,
+					  const char *prefix, const char *name,
+					  int width, int length,
+					  const char *units) _CUPS_API_1_7;
+extern int		pwgInitSize(pwg_size_t *size, ipp_t *job,
+				    int *margins_set) _CUPS_API_1_7;
+extern pwg_media_t	*pwgMediaForLegacy(const char *legacy) _CUPS_API_1_7;
+extern pwg_media_t	*pwgMediaForPPD(const char *ppd) _CUPS_API_1_7;
+extern pwg_media_t	*pwgMediaForPWG(const char *pwg) _CUPS_API_1_7;
+extern pwg_media_t	*pwgMediaForSize(int width, int length) _CUPS_API_1_7;
+
+#  ifdef __cplusplus
+}
+#  endif /* __cplusplus */
+
+#endif /* !_CUPS_PWG_H_ */
diff --git a/third_party/cups/include/cups/versioning.h b/third_party/cups/include/cups/versioning.h
new file mode 100644
index 0000000000..14c218fee0
--- /dev/null
+++ b/third_party/cups/include/cups/versioning.h
@@ -0,0 +1,267 @@
+/*
+ * API versioning definitions for CUPS.
+ *
+ * Copyright © 2007-2019 by Apple Inc.
+ *
+ * Licensed under Apache License v2.0.  See the file "LICENSE" for more
+ * information.
+ */
+
+#ifndef _CUPS_VERSIONING_H_
+#  define _CUPS_VERSIONING_H_
+
+/*
+ * This header defines several macros that add compiler-specific attributes for
+ * functions:
+ *
+ *   - _CUPS_API_major_minor[_patch]: Specifies when an API became available by
+ *     CUPS version.
+ *   - _CUPS_DEPRECATED: Function is deprecated with no replacement.
+ *   - _CUPS_DEPRECATED_MSG("message"): Function is deprecated and has a
+ *     replacement.
+ *   - _CUPS_FORMAT(format-index, additional-args-index): Function has a
+ *     printf-style format argument followed by zero or more additional
+ *     arguments.  Indices start at 1.
+ *   - _CUPS_INTERNAL: Function is internal with no replacement API.
+ *   - _CUPS_INTERNAL_MSG("msg"): Function is internal - use specified API
+ *     instead.
+ *   - _CUPS_NONNULL((arg list)): Specifies the comma-separated argument indices
+ *     are assumed non-NULL.  Indices start at 1.
+ *   - _CUPS_NORETURN: Specifies the function does not return.
+ *   - _CUPS_PRIVATE: Specifies the function is private to CUPS.
+ *   - _CUPS_PUBLIC: Specifies the function is public API.
+ */
+
+/*
+ * Determine which compiler is being used and what annotation features are
+ * available...
+ */
+
+#  ifdef __APPLE__
+#    include <os/availability.h>
+#  endif /* __APPLE__ */
+
+#  ifdef __has_extension		/* Clang */
+#    define _CUPS_HAS_DEPRECATED
+#    define _CUPS_HAS_FORMAT
+#    define _CUPS_HAS_NORETURN
+#    define _CUPS_HAS_VISIBILITY
+#    if __has_extension(attribute_deprecated_with_message)
+#      define _CUPS_HAS_DEPRECATED_WITH_MESSAGE
+#    endif
+#    if __has_extension(attribute_unavailable_with_message)
+#      define _CUPS_HAS_UNAVAILABLE_WITH_MESSAGE
+#    endif
+#  elif defined(__GNUC__)		/* GCC and compatible */
+#    if __GNUC__ >= 3			/* GCC 3.0 or higher */
+#      define _CUPS_HAS_DEPRECATED
+#      define _CUPS_HAS_FORMAT
+#      define _CUPS_HAS_NORETURN
+#      define _CUPS_HAS_VISIBILITY
+#    endif /* __GNUC__ >= 3 */
+#    if __GNUC__ >= 5			/* GCC 5.x */
+#      define _CUPS_HAS_DEPRECATED_WITH_MESSAGE
+#    elif __GNUC__ == 4 && __GNUC_MINOR__ >= 5
+					/* GCC 4.5 or higher */
+#      define _CUPS_HAS_DEPRECATED_WITH_MESSAGE
+#    endif /* __GNUC__ >= 5 */
+#  elif defined(_WIN32)
+#    define __attribute__(...)
+#  endif /* __has_extension */
+
+
+/*
+ * Define _CUPS_INTERNAL, _CUPS_PRIVATE, and _CUPS_PUBLIC visibilty macros for
+ * internal/private/public functions...
+ */
+
+#  ifdef _CUPS_HAS_VISIBILITY
+#    define _CUPS_INTERNAL	__attribute__ ((visibility("hidden")))
+#    define _CUPS_PRIVATE	__attribute__ ((visibility("default")))
+#    define _CUPS_PUBLIC	__attribute__ ((visibility("default")))
+#  elif defined(_WIN32) && defined(LIBCUPS2_EXPORTS) && 0
+#    define _CUPS_INTERNAL
+#    define _CUPS_PRIVATE	__declspec(dllexport)
+#    define _CUPS_PUBLIC	__declspec(dllexport)
+#  else
+#    define _CUPS_INTERNAL
+#    define _CUPS_PRIVATE
+#    define _CUPS_PUBLIC
+#  endif /* _CUPS_HAS_VISIBILITY */
+
+
+/*
+ * Define _CUPS_API_major_minor[_patch] availability macros for CUPS.
+ *
+ * Note: Using any of the _CUPS_API macros automatically adds _CUPS_PUBLIC.
+ */
+
+#  if defined(__APPLE__) && !defined(_CUPS_SOURCE) && TARGET_OS_OSX
+/*
+ * On Apple operating systems, the _CUPS_API_* constants are defined using the
+ * API_ macros in <os/availability.h>.
+ *
+ * On iOS, we don't actually have libcups available directly, but the supplied
+ * libcups_static target in the Xcode project supports building on iOS 11.0 and
+ * later.
+ */
+#    define _CUPS_API_1_1_19 API_AVAILABLE(macos(10.3), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_1_1_20 API_AVAILABLE(macos(10.4), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_1_1_21 API_AVAILABLE(macos(10.4), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_1_2 API_AVAILABLE(macos(10.5), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_1_3 API_AVAILABLE(macos(10.5), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_1_4 API_AVAILABLE(macos(10.6), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_1_5 API_AVAILABLE(macos(10.7), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_1_6 API_AVAILABLE(macos(10.8), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_1_7 API_AVAILABLE(macos(10.9), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_2_0 API_AVAILABLE(macos(10.10), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_2_2 API_AVAILABLE(macos(10.12), ios(11.0)) _CUPS_PUBLIC
+#    define _CUPS_API_2_2_4 API_AVAILABLE(macos(10.13), ios(12.0)) _CUPS_PUBLIC
+#    define _CUPS_API_2_2_7 API_AVAILABLE(macos(10.14), ios(13.0)) _CUPS_PUBLIC
+#    define _CUPS_API_2_3 API_AVAILABLE(macos(10.14), ios(13.0)) _CUPS_PUBLIC
+#  else
+#    define _CUPS_API_1_1_19 _CUPS_PUBLIC
+#    define _CUPS_API_1_1_20 _CUPS_PUBLIC
+#    define _CUPS_API_1_1_21 _CUPS_PUBLIC
+#    define _CUPS_API_1_2 _CUPS_PUBLIC
+#    define _CUPS_API_1_3 _CUPS_PUBLIC
+#    define _CUPS_API_1_4 _CUPS_PUBLIC
+#    define _CUPS_API_1_5 _CUPS_PUBLIC
+#    define _CUPS_API_1_6 _CUPS_PUBLIC
+#    define _CUPS_API_1_7 _CUPS_PUBLIC
+#    define _CUPS_API_2_0 _CUPS_PUBLIC
+#    define _CUPS_API_2_2 _CUPS_PUBLIC
+#    define _CUPS_API_2_2_4 _CUPS_PUBLIC
+#    define _CUPS_API_2_2_7 _CUPS_PUBLIC
+#    define _CUPS_API_2_3 _CUPS_PUBLIC
+#  endif /* __APPLE__ && !_CUPS_SOURCE */
+
+
+/*
+ * Define _CUPS_DEPRECATED and _CUPS_INTERNAL macros to mark old APIs as
+ * "deprecated" or "unavailable" with messages so you get warnings/errors are
+ * compile-time...
+ *
+ * Note: Using any of the _CUPS_DEPRECATED macros automatically adds
+ * _CUPS_PUBLIC.
+ */
+
+#  if !defined(_CUPS_HAS_DEPRECATED) || (defined(_CUPS_SOURCE) && !defined(_CUPS_NO_DEPRECATED))
+    /*
+     * Don't mark functions deprecated if the compiler doesn't support it
+     * or we are building CUPS source that doesn't care.
+     */
+#    define _CUPS_DEPRECATED _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_MSG(m) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_2_MSG(m) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_6_MSG(m) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_7_MSG(m) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_2_2_MSG(m) _CUPS_PUBLIC
+#  elif defined(__APPLE__) && defined(_CUPS_NO_DEPRECATED)
+    /*
+     * Compiler supports the unavailable attribute, so use it when the code
+     * wants to exclude the use of deprecated API.
+     */
+#    define _CUPS_DEPRECATED __attribute__ ((unavailable)) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_2_MSG(m) API_DEPRECATED(m, macos(10.2,10.5), ios(11.0,11.0)) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_6_MSG(m) API_DEPRECATED(m, macos(10.2,10.8), ios(11.0,11.0)) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_7_MSG(m) API_DEPRECATED(m, macos(10.2,10.9), ios(11.0,11.0)) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_2_2_MSG(m) API_DEPRECATED(m, macos(10.2,10.12), ios(11.0,11.0)) _CUPS_PUBLIC
+
+#  elif defined(__APPLE__)
+    /*
+     * Just mark things as deprecated...
+     */
+#    define _CUPS_DEPRECATED __attribute__ ((deprecated)) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_2_MSG(m) API_DEPRECATED(m, macos(10.2,10.5), ios(11.0,11.0)) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_6_MSG(m) API_DEPRECATED(m, macos(10.2,10.8), ios(11.0,11.0)) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_7_MSG(m) API_DEPRECATED(m, macos(10.2,10.9), ios(11.0,11.0)) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_2_2_MSG(m) API_DEPRECATED(m, macos(10.2,10.12), ios(11.0,11.0)) _CUPS_PUBLIC
+
+#  elif defined(_CUPS_HAS_UNAVAILABLE_WITH_MESSAGE) && defined(_CUPS_NO_DEPRECATED)
+    /*
+     * Compiler supports the unavailable attribute, so use it when the code
+     * wants to exclude the use of deprecated API.
+     */
+#    define _CUPS_DEPRECATED __attribute__ ((unavailable)) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_2_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_6_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_1_7_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC
+#    define _CUPS_DEPRECATED_2_2_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC
+#  else
+    /*
+     * Compiler supports the deprecated attribute, so use it.
+     */
+#    define _CUPS_DEPRECATED __attribute__ ((deprecated)) _CUPS_PUBLIC
+#    ifdef _CUPS_HAS_DEPRECATED_WITH_MESSAGE
+#      define _CUPS_DEPRECATED_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC
+#      define _CUPS_DEPRECATED_1_2_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC
+#      define _CUPS_DEPRECATED_1_6_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC
+#      define _CUPS_DEPRECATED_1_7_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC
+#      define _CUPS_DEPRECATED_2_2_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC
+#    else
+#      define _CUPS_DEPRECATED_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC
+#      define _CUPS_DEPRECATED_1_2_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC
+#      define _CUPS_DEPRECATED_1_6_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC
+#      define _CUPS_DEPRECATED_1_7_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC
+#      define _CUPS_DEPRECATED_2_2_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC
+#    endif /* _CUPS_HAS_DEPRECATED_WITH_MESSAGE */
+#  endif /* !_CUPS_HAS_DEPRECATED || (_CUPS_SOURCE && !_CUPS_NO_DEPRECATED) */
+
+
+/*
+ * Define _CUPS_FORMAT macro for printf-style functions...
+ */
+
+#  ifdef _CUPS_HAS_FORMAT
+#    define _CUPS_FORMAT(a,b) __attribute__ ((__format__(__printf__, a,b)))
+#  else
+#    define _CUPS_FORMAT(a,b)
+#  endif /* _CUPS_HAS_FORMAT */
+
+
+/*
+ * Define _CUPS_INTERNAL_MSG macro for private APIs that have (historical)
+ * public visibility.
+ *
+ * Note: Using the _CUPS_INTERNAL_MSG macro automatically adds _CUPS_PUBLIC.
+ */
+
+#  ifdef _CUPS_SOURCE
+#    define _CUPS_INTERNAL_MSG(m) _CUPS_PUBLIC
+#  elif defined(_CUPS_HAS_UNAVAILABLE_WITH_MESSAGE)
+#    define _CUPS_INTERNAL_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC
+#  elif defined(_CUPS_HAS_DEPRECATED_WITH_MESSAGE)
+#    define _CUPS_INTERNAL_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC
+#  else
+#    define _CUPS_INTERNAL_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC
+#  endif /* _CUPS_SOURCE */
+
+
+/*
+ * Define _CUPS_NONNULL macro for functions that don't expect non-null
+ * arguments...
+ */
+
+#  ifdef _CUPS_HAS_NONNULL
+#    define _CUPS_NONNULL(...) __attribute__ ((nonnull(__VA_ARGS__)))
+#  else
+#    define _CUPS_NONNULL(...)
+#  endif /* _CUPS_HAS_FORMAT */
+
+
+/*
+ * Define _CUPS_NORETURN macro for functions that don't return.
+ */
+
+#  ifdef _CUPS_HAS_NORETURN
+#    define _CUPS_NORETURN	__attribute__ ((noreturn))
+#  else
+#    define _CUPS_NORETURN
+#  endif /* _CUPS_HAS_NORETURN */
+
+
+#endif /* !_CUPS_VERSIONING_H_ */
diff --git a/third_party/cups/update.sh b/third_party/cups/update.sh
new file mode 100755
index 0000000000..22656d4315
--- /dev/null
+++ b/third_party/cups/update.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+  
+# Script to update the mozilla in-tree copy of CUPS headers
+# Run this within the /third_party/cups directory of the source tree.
+
+MY_TEMP_DIR=`mktemp -d -t cups_update.XXXXXX` || exit 1
+
+COMMIT='82e3ee0e3230287b76a76fb8f16b92ca6e50b444'
+FILES='cups/cups.h cups/array.h cups/file.h cups/http.h cups/ipp.h cups/language.h cups/pwg.h cups/versioning.h'
+git clone git://github.com/apple/cups.git "$MY_TEMP_DIR" --depth 1
+git -C "$MY_TEMP_DIR" fetch origin "$COMMIT"
+git -C "$MY_TEMP_DIR" reset --hard "$COMMIT"
+
+mkdir -p include/cups 2> /dev/null
+rm -rf include/cups/*
+
+for FILE in $FILES ; do
+    mv "$MY_TEMP_DIR/$FILE" "include/$FILE"
+done
+
+rm -rf "$MY_TEMP_DIR"
+
+echo "###"
+echo "### Updated cups to $COMMIT."
+echo "### Remember to verify and commit the changes to source control!"
+echo "###"
+