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1 | /* | |
2 | * "$Id: usb-darwin.c 7953 2008-09-17 01:43:19Z mike $" | |
3 | * | |
4 | * Copyright 2005-2010 Apple Inc. All rights reserved. | |
5 | * | |
6 | * IMPORTANT: This Apple software is supplied to you by Apple Computer, | |
7 | * Inc. ("Apple") in consideration of your agreement to the following | |
8 | * terms, and your use, installation, modification or redistribution of | |
9 | * this Apple software constitutes acceptance of these terms. If you do | |
10 | * not agree with these terms, please do not use, install, modify or | |
11 | * redistribute this Apple software. | |
12 | * | |
13 | * In consideration of your agreement to abide by the following terms, and | |
14 | * subject to these terms, Apple grants you a personal, non-exclusive | |
15 | * license, under Apple's copyrights in this original Apple software (the | |
16 | * "Apple Software"), to use, reproduce, modify and redistribute the Apple | |
17 | * Software, with or without modifications, in source and/or binary forms; | |
18 | * provided that if you redistribute the Apple Software in its entirety and | |
19 | * without modifications, you must retain this notice and the following | |
20 | * text and disclaimers in all such redistributions of the Apple Software. | |
21 | * Neither the name, trademarks, service marks or logos of Apple Computer, | |
22 | * Inc. may be used to endorse or promote products derived from the Apple | |
23 | * Software without specific prior written permission from Apple. Except | |
24 | * as expressly stated in this notice, no other rights or licenses, express | |
25 | * or implied, are granted by Apple herein, including but not limited to | |
26 | * any patent rights that may be infringed by your derivative works or by | |
27 | * other works in which the Apple Software may be incorporated. | |
28 | * | |
29 | * The Apple Software is provided by Apple on an "AS IS" basis. APPLE | |
30 | * MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION | |
31 | * THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS | |
32 | * FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND | |
33 | * OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. | |
34 | * | |
35 | * IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL | |
36 | * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
37 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
38 | * INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, | |
39 | * MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED | |
40 | * AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), | |
41 | * STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE | |
42 | * POSSIBILITY OF SUCH DAMAGE. | |
43 | * | |
44 | * Contents: | |
45 | * | |
46 | * list_devices() - List all USB devices. | |
47 | * print_device() - Print a file to a USB device. | |
48 | * sidechannel_thread() - Thread to handle side-channel requests. | |
49 | * read_thread() - Thread to read the backchannel data on. | |
50 | * list_device_cb() - list_device iterator callback. | |
51 | * find_device_cb() - print_device iterator callback. | |
52 | * status_timer_cb() - Status timer callback. | |
53 | * iterate_printers() - Iterate over all the printers. | |
54 | * device_added() - Device added notifier. | |
55 | * copy_deviceinfo() - Copy strings from the 1284 device ID. | |
56 | * release_deviceinfo() - Release deviceinfo strings. | |
57 | * load_classdriver() - Load a classdriver. | |
58 | * unload_classdriver() - Unload a classdriver. | |
59 | * load_printerdriver() - Load vendor's classdriver. | |
60 | * registry_open() - Open a connection to the printer. | |
61 | * registry_close() - Close the connection to the printer. | |
62 | * copy_deviceid() - Copy the 1284 device id string. | |
63 | * copy_devicestring() - Copy the 1284 device id string. | |
64 | * copy_value_for_key() - Copy value string associated with a key. | |
65 | * cfstr_create_trim() - Create CFString and trim whitespace characters. | |
66 | * parse_options() - Parse uri options. | |
67 | * setup_cfLanguage() - Create AppleLanguages array from LANG environment var. | |
68 | * run_legacy_backend() - Re-exec backend as ppc or i386. | |
69 | * sigterm_handler() - SIGTERM handler. | |
70 | * next_line() - Find the next line in a buffer. | |
71 | * parse_pserror() - Scan the backchannel data for postscript errors. | |
72 | * get_device_id() - Return IEEE-1284 device ID. | |
73 | */ | |
74 | ||
75 | /* | |
76 | * Include necessary headers. | |
77 | */ | |
78 | ||
79 | #include <stdio.h> | |
80 | #include <stdlib.h> | |
81 | #include <errno.h> | |
82 | #include <signal.h> | |
83 | #include <fcntl.h> | |
84 | #include <termios.h> | |
85 | #include <unistd.h> | |
86 | #include <sys/stat.h> | |
87 | #include <sys/sysctl.h> | |
88 | #include <libgen.h> | |
89 | #include <mach/mach.h> | |
90 | #include <mach/mach_error.h> | |
91 | #include <mach/mach_time.h> | |
92 | #include <cups/debug-private.h> | |
93 | #include <cups/sidechannel.h> | |
94 | #include <cups/language-private.h> | |
95 | #include "backend-private.h" | |
96 | ||
97 | #include <CoreFoundation/CoreFoundation.h> | |
98 | #include <IOKit/usb/IOUSBLib.h> | |
99 | #include <IOKit/IOCFPlugIn.h> | |
100 | ||
101 | #include <spawn.h> | |
102 | #include <pthread.h> | |
103 | ||
104 | extern char **environ; | |
105 | ||
106 | ||
107 | /* | |
108 | * DEBUG_WRITES, if defined, causes the backend to write data to the printer in | |
109 | * 512 byte increments, up to 8192 bytes, to make debugging with a USB bus | |
110 | * analyzer easier. | |
111 | */ | |
112 | ||
113 | #define DEBUG_WRITES 0 | |
114 | ||
115 | /* | |
116 | * WAIT_EOF_DELAY is number of seconds we'll wait for responses from | |
117 | * the printer after we've finished sending all the data | |
118 | */ | |
119 | #define WAIT_EOF_DELAY 7 | |
120 | #define WAIT_SIDE_DELAY 3 | |
121 | #define DEFAULT_TIMEOUT 5000L | |
122 | ||
123 | #define USB_INTERFACE_KIND CFUUIDGetUUIDBytes(kIOUSBInterfaceInterfaceID190) | |
124 | #define kUSBLanguageEnglish 0x409 | |
125 | ||
126 | #define PRINTER_POLLING_INTERVAL 5 /* seconds */ | |
127 | #define INITIAL_LOG_INTERVAL PRINTER_POLLING_INTERVAL | |
128 | #define SUBSEQUENT_LOG_INTERVAL 3 * INITIAL_LOG_INTERVAL | |
129 | ||
130 | #define kUSBPrinterClassTypeID CFUUIDGetConstantUUIDWithBytes(NULL, 0x06, 0x04, 0x7D, 0x16, 0x53, 0xA2, 0x11, 0xD6, 0x92, 0x06, 0x00, 0x30, 0x65, 0x52, 0x45, 0x92) | |
131 | #define kUSBPrinterClassInterfaceID CFUUIDGetConstantUUIDWithBytes(NULL, 0x03, 0x34, 0x6D, 0x74, 0x53, 0xA3, 0x11, 0xD6, 0x9E, 0xA1, 0x76, 0x30, 0x65, 0x52, 0x45, 0x92) | |
132 | ||
133 | #define kUSBClassDriverProperty CFSTR("USB Printing Class") | |
134 | ||
135 | #define kUSBGenericTOPrinterClassDriver CFSTR("/System/Library/Printers/Libraries/USBGenericTOPrintingClass.plugin") | |
136 | #define kUSBPrinterClassDeviceNotOpen -9664 /*kPMInvalidIOMContext*/ | |
137 | ||
138 | ||
139 | /* | |
140 | * Section 5.3 USB Printing Class spec | |
141 | */ | |
142 | #define kUSBPrintingSubclass 1 | |
143 | #define kUSBPrintingProtocolNoOpen 0 | |
144 | #define kUSBPrintingProtocolUnidirectional 1 | |
145 | #define kUSBPrintingProtocolBidirectional 2 | |
146 | ||
147 | typedef IOUSBInterfaceInterface190 **printer_interface_t; | |
148 | ||
149 | typedef struct iodevice_request_s /**** Device request ****/ | |
150 | { | |
151 | UInt8 requestType; | |
152 | UInt8 request; | |
153 | UInt16 value; | |
154 | UInt16 index; | |
155 | UInt16 length; | |
156 | void *buffer; | |
157 | } iodevice_request_t; | |
158 | ||
159 | typedef union /**** Centronics status byte ****/ | |
160 | { | |
161 | char b; | |
162 | struct | |
163 | { | |
164 | unsigned reserved0:2; | |
165 | unsigned paperError:1; | |
166 | unsigned select:1; | |
167 | unsigned notError:1; | |
168 | unsigned reserved1:3; | |
169 | } status; | |
170 | } centronics_status_t; | |
171 | ||
172 | typedef struct classdriver_s /**** g.classdriver context ****/ | |
173 | { | |
174 | IUNKNOWN_C_GUTS; | |
175 | CFPlugInRef plugin; /* release plugin */ | |
176 | IUnknownVTbl **factory; /* Factory */ | |
177 | void *vendorReference; /* vendor class specific usage */ | |
178 | UInt32 location; /* unique location in bus topology */ | |
179 | UInt8 interfaceNumber; /* Interface number */ | |
180 | UInt16 vendorID; /* Vendor id */ | |
181 | UInt16 productID; /* Product id */ | |
182 | printer_interface_t interface; /* identify the device to IOKit */ | |
183 | UInt8 outpipe; /* mandatory bulkOut pipe */ | |
184 | UInt8 inpipe; /* optional bulkIn pipe */ | |
185 | ||
186 | /* general class requests */ | |
187 | kern_return_t (*DeviceRequest)(struct classdriver_s **printer, iodevice_request_t *iorequest, UInt16 timeout); | |
188 | kern_return_t (*GetString)(struct classdriver_s **printer, UInt8 whichString, UInt16 language, UInt16 timeout, CFStringRef *result); | |
189 | ||
190 | /* standard printer class requests */ | |
191 | kern_return_t (*SoftReset)(struct classdriver_s **printer, UInt16 timeout); | |
192 | kern_return_t (*GetCentronicsStatus)(struct classdriver_s **printer, centronics_status_t *result, UInt16 timeout); | |
193 | kern_return_t (*GetDeviceID)(struct classdriver_s **printer, CFStringRef *devid, UInt16 timeout); | |
194 | ||
195 | /* standard bulk device requests */ | |
196 | kern_return_t (*ReadPipe)(struct classdriver_s **printer, UInt8 *buffer, UInt32 *count); | |
197 | kern_return_t (*WritePipe)(struct classdriver_s **printer, UInt8 *buffer, UInt32 *count, Boolean eoj); | |
198 | ||
199 | /* interface requests */ | |
200 | kern_return_t (*Open)(struct classdriver_s **printer, UInt32 location, UInt8 protocol); | |
201 | kern_return_t (*Abort)(struct classdriver_s **printer); | |
202 | kern_return_t (*Close)(struct classdriver_s **printer); | |
203 | ||
204 | /* initialize and terminate */ | |
205 | kern_return_t (*Initialize)(struct classdriver_s **printer, struct classdriver_s **baseclass); | |
206 | kern_return_t (*Terminate)(struct classdriver_s **printer); | |
207 | ||
208 | } classdriver_t; | |
209 | ||
210 | typedef Boolean (*iterator_callback_t)(void *refcon, io_service_t obj); | |
211 | ||
212 | typedef struct iterator_reference_s /**** Iterator reference data */ | |
213 | { | |
214 | iterator_callback_t callback; | |
215 | void *userdata; | |
216 | Boolean keepRunning; | |
217 | } iterator_reference_t; | |
218 | ||
219 | typedef struct globals_s | |
220 | { | |
221 | io_service_t printer_obj; | |
222 | classdriver_t **classdriver; | |
223 | ||
224 | pthread_mutex_t read_thread_mutex; | |
225 | pthread_cond_t read_thread_cond; | |
226 | int read_thread_stop; | |
227 | int read_thread_done; | |
228 | ||
229 | pthread_mutex_t readwrite_lock_mutex; | |
230 | pthread_cond_t readwrite_lock_cond; | |
231 | int readwrite_lock; | |
232 | ||
233 | CFStringRef make; | |
234 | CFStringRef model; | |
235 | CFStringRef serial; | |
236 | UInt32 location; | |
237 | UInt8 interfaceNum; | |
238 | ||
239 | CFRunLoopTimerRef status_timer; | |
240 | ||
241 | int print_fd; /* File descriptor to print */ | |
242 | ssize_t print_bytes; /* Print bytes read */ | |
243 | #if DEBUG_WRITES | |
244 | ssize_t debug_bytes; /* Current bytes to read */ | |
245 | #endif /* DEBUG_WRITES */ | |
246 | ||
247 | Boolean wait_eof; | |
248 | int drain_output; /* Drain all pending output */ | |
249 | int bidi_flag; /* 0=unidirectional, 1=bidirectional */ | |
250 | ||
251 | pthread_mutex_t sidechannel_thread_mutex; | |
252 | pthread_cond_t sidechannel_thread_cond; | |
253 | int sidechannel_thread_stop; | |
254 | int sidechannel_thread_done; | |
255 | } globals_t; | |
256 | ||
257 | ||
258 | /* | |
259 | * Globals... | |
260 | */ | |
261 | ||
262 | globals_t g = { 0 }; /* Globals */ | |
263 | ||
264 | ||
265 | /* | |
266 | * Local functions... | |
267 | */ | |
268 | ||
269 | static Boolean find_device_cb(void *refcon, io_service_t obj); | |
270 | static Boolean list_device_cb(void *refcon, io_service_t obj); | |
271 | static CFStringRef cfstr_create_trim(const char *cstr); | |
272 | static CFStringRef copy_value_for_key(CFStringRef deviceID, CFStringRef *keys); | |
273 | static kern_return_t load_classdriver(CFStringRef driverPath, printer_interface_t intf, classdriver_t ***printerDriver); | |
274 | static kern_return_t load_printerdriver(CFStringRef *driverBundlePath); | |
275 | static kern_return_t registry_close(); | |
276 | static kern_return_t registry_open(CFStringRef *driverBundlePath); | |
277 | static kern_return_t unload_classdriver(); | |
278 | static OSStatus copy_deviceid(classdriver_t **printer, CFStringRef *deviceID); | |
279 | static void *read_thread(void *reference); | |
280 | static void *sidechannel_thread(void *reference); | |
281 | static void copy_deviceinfo(CFStringRef deviceIDString, CFStringRef *make, CFStringRef *model, CFStringRef *serial); | |
282 | static void copy_devicestring(io_service_t usbInterface, CFStringRef *deviceID, UInt32 *deviceLocation, UInt8 *interfaceNum); | |
283 | static void device_added(void *userdata, io_iterator_t iterator); | |
284 | static void get_device_id(cups_sc_status_t *status, char *data, int *datalen); | |
285 | static void iterate_printers(iterator_callback_t callBack, void *userdata); | |
286 | static void parse_options(char *options, char *serial, int serial_size, UInt32 *location, Boolean *wait_eof); | |
287 | static void release_deviceinfo(CFStringRef *make, CFStringRef *model, CFStringRef *serial); | |
288 | static void setup_cfLanguage(void); | |
289 | static void soft_reset(); | |
290 | static void status_timer_cb(CFRunLoopTimerRef timer, void *info); | |
291 | ||
292 | #if defined(__i386__) || defined(__x86_64__) | |
293 | static pid_t child_pid; /* Child PID */ | |
294 | static void run_legacy_backend(int argc, char *argv[], int fd); /* Starts child backend process running as a ppc executable */ | |
295 | static void sigterm_handler(int sig); /* SIGTERM handler */ | |
296 | #endif /* __i386__ || __x86_64__ */ | |
297 | ||
298 | #ifdef PARSE_PS_ERRORS | |
299 | static const char *next_line (const char *buffer); | |
300 | static void parse_pserror (char *sockBuffer, int len); | |
301 | #endif /* PARSE_PS_ERRORS */ | |
302 | ||
303 | #pragma mark - | |
304 | ||
305 | /* | |
306 | * 'list_devices()' - List all USB devices. | |
307 | */ | |
308 | ||
309 | void list_devices() | |
310 | { | |
311 | iterate_printers(list_device_cb, NULL); | |
312 | } | |
313 | ||
314 | ||
315 | /* | |
316 | * 'print_device()' - Print a file to a USB device. | |
317 | */ | |
318 | ||
319 | int /* O - Exit status */ | |
320 | print_device(const char *uri, /* I - Device URI */ | |
321 | const char *hostname, /* I - Hostname/manufacturer */ | |
322 | const char *resource, /* I - Resource/modelname */ | |
323 | char *options, /* I - Device options/serial number */ | |
324 | int print_fd, /* I - File descriptor to print */ | |
325 | int copies, /* I - Copies to print */ | |
326 | int argc, /* I - Number of command-line arguments (6 or 7) */ | |
327 | char *argv[]) /* I - Command-line arguments */ | |
328 | { | |
329 | char serial[1024]; /* Serial number buffer */ | |
330 | OSStatus status; /* Function results */ | |
331 | IOReturn iostatus; /* Current IO status */ | |
332 | pthread_t read_thread_id, /* Read thread */ | |
333 | sidechannel_thread_id;/* Side-channel thread */ | |
334 | int have_sidechannel = 0; /* Was the side-channel thread started? */ | |
335 | struct stat sidechannel_info; /* Side-channel file descriptor info */ | |
336 | char print_buffer[8192], /* Print data buffer */ | |
337 | *print_ptr; /* Pointer into print data buffer */ | |
338 | UInt32 location; /* Unique location in bus topology */ | |
339 | fd_set input_set; /* Input set for select() */ | |
340 | CFStringRef driverBundlePath; /* Class driver path */ | |
341 | int countdown, /* Logging interval */ | |
342 | nfds; /* Number of file descriptors */ | |
343 | ssize_t total_bytes; /* Total bytes written */ | |
344 | UInt32 bytes; /* Bytes written */ | |
345 | struct timeval *timeout, /* Timeout pointer */ | |
346 | stimeout; /* Timeout for select() */ | |
347 | struct timespec cond_timeout; /* pthread condition timeout */ | |
348 | ||
349 | ||
350 | /* | |
351 | * See if the side-channel descriptor is valid... | |
352 | */ | |
353 | ||
354 | have_sidechannel = !fstat(CUPS_SC_FD, &sidechannel_info) && | |
355 | S_ISSOCK(sidechannel_info.st_mode); | |
356 | ||
357 | /* | |
358 | * Localize using CoreFoundation... | |
359 | */ | |
360 | ||
361 | setup_cfLanguage(); | |
362 | ||
363 | parse_options(options, serial, sizeof(serial), &location, &g.wait_eof); | |
364 | ||
365 | if (resource[0] == '/') | |
366 | resource++; | |
367 | ||
368 | g.print_fd = print_fd; | |
369 | g.make = cfstr_create_trim(hostname); | |
370 | g.model = cfstr_create_trim(resource); | |
371 | g.serial = cfstr_create_trim(serial); | |
372 | g.location = location; | |
373 | ||
374 | if (!g.make || !g.model) | |
375 | { | |
376 | fprintf(stderr, "DEBUG: Fatal USB error.\n"); | |
377 | _cupsLangPuts(stderr, _("ERROR: There was an unrecoverable USB error.\n")); | |
378 | ||
379 | if (!g.make) | |
380 | fputs("DEBUG: USB make string is NULL\n", stderr); | |
381 | if (!g.model) | |
382 | fputs("DEBUG: USB model string is NULL\n", stderr); | |
383 | ||
384 | return (CUPS_BACKEND_STOP); | |
385 | } | |
386 | ||
387 | fputs("STATE: +connecting-to-device\n", stderr); | |
388 | ||
389 | countdown = INITIAL_LOG_INTERVAL; | |
390 | ||
391 | do | |
392 | { | |
393 | if (g.printer_obj) | |
394 | { | |
395 | IOObjectRelease(g.printer_obj); | |
396 | unload_classdriver(&g.classdriver); | |
397 | g.printer_obj = 0x0; | |
398 | g.classdriver = 0x0; | |
399 | } | |
400 | ||
401 | fprintf(stderr, "DEBUG: Looking for '%s %s'\n", hostname, resource); | |
402 | ||
403 | iterate_printers(find_device_cb, NULL); | |
404 | ||
405 | fputs("DEBUG: Opening connection\n", stderr); | |
406 | ||
407 | driverBundlePath = NULL; | |
408 | ||
409 | status = registry_open(&driverBundlePath); | |
410 | ||
411 | #if defined(__i386__) || defined(__x86_64__) | |
412 | /* | |
413 | * If we were unable to load the class drivers for this printer it's | |
414 | * probably because they're ppc or i386. In this case try to run this | |
415 | * backend as i386 or ppc executables so we can use them... | |
416 | */ | |
417 | if (status == -2) | |
418 | { | |
419 | run_legacy_backend(argc, argv, print_fd); | |
420 | /* Never returns here */ | |
421 | } | |
422 | #endif /* __i386__ || __x86_64__ */ | |
423 | ||
424 | if (status == -2) | |
425 | { | |
426 | /* | |
427 | * If we still were unable to load the class drivers for this printer log | |
428 | * the error and stop the queue... | |
429 | */ | |
430 | ||
431 | if (driverBundlePath == NULL || !CFStringGetCString(driverBundlePath, print_buffer, sizeof(print_buffer), kCFStringEncodingUTF8)) | |
432 | strlcpy(print_buffer, "USB class driver", sizeof(print_buffer)); | |
433 | ||
434 | fputs("STATE: +apple-missing-usbclassdriver-error\n", stderr); | |
435 | _cupsLangPuts(stderr, _("ERROR: There was an unrecoverable USB error.\n")); | |
436 | fprintf(stderr, "DEBUG: Could not load %s\n", print_buffer); | |
437 | ||
438 | if (driverBundlePath) | |
439 | CFRelease(driverBundlePath); | |
440 | ||
441 | return (CUPS_BACKEND_STOP); | |
442 | } | |
443 | ||
444 | if (driverBundlePath) | |
445 | CFRelease(driverBundlePath); | |
446 | ||
447 | if (status != noErr) | |
448 | { | |
449 | sleep(PRINTER_POLLING_INTERVAL); | |
450 | countdown -= PRINTER_POLLING_INTERVAL; | |
451 | if (countdown <= 0) | |
452 | { | |
453 | _cupsLangPuts(stderr, | |
454 | _("INFO: Waiting for printer to become available...\n")); | |
455 | fprintf(stderr, "DEBUG: USB printer status: 0x%08x\n", (int)status); | |
456 | countdown = SUBSEQUENT_LOG_INTERVAL; /* subsequent log entries, every 15 seconds */ | |
457 | } | |
458 | } | |
459 | } while (status != noErr); | |
460 | ||
461 | fputs("STATE: -connecting-to-device\n", stderr); | |
462 | ||
463 | /* | |
464 | * Now that we are "connected" to the port, ignore SIGTERM so that we | |
465 | * can finish out any page data the driver sends (e.g. to eject the | |
466 | * current page... Only ignore SIGTERM if we are printing data from | |
467 | * stdin (otherwise you can't cancel raw jobs...) | |
468 | */ | |
469 | ||
470 | if (!print_fd) | |
471 | { | |
472 | struct sigaction action; /* POSIX signal action */ | |
473 | ||
474 | ||
475 | memset(&action, 0, sizeof(action)); | |
476 | ||
477 | sigemptyset(&action.sa_mask); | |
478 | action.sa_handler = SIG_IGN; | |
479 | sigaction(SIGTERM, &action, NULL); | |
480 | } | |
481 | ||
482 | /* | |
483 | * Start the side channel thread if the descriptor is valid... | |
484 | */ | |
485 | ||
486 | pthread_mutex_init(&g.readwrite_lock_mutex, NULL); | |
487 | pthread_cond_init(&g.readwrite_lock_cond, NULL); | |
488 | g.readwrite_lock = 1; | |
489 | ||
490 | if (have_sidechannel) | |
491 | { | |
492 | g.sidechannel_thread_stop = 0; | |
493 | g.sidechannel_thread_done = 0; | |
494 | ||
495 | pthread_cond_init(&g.sidechannel_thread_cond, NULL); | |
496 | pthread_mutex_init(&g.sidechannel_thread_mutex, NULL); | |
497 | ||
498 | if (pthread_create(&sidechannel_thread_id, NULL, sidechannel_thread, NULL)) | |
499 | { | |
500 | fprintf(stderr, "DEBUG: Fatal USB error.\n"); | |
501 | _cupsLangPuts(stderr, _("ERROR: There was an unrecoverable USB error.\n")); | |
502 | fputs("DEBUG: Couldn't create side-channel thread\n", stderr); | |
503 | registry_close(); | |
504 | return (CUPS_BACKEND_STOP); | |
505 | } | |
506 | } | |
507 | ||
508 | /* | |
509 | * Get the read thread going... | |
510 | */ | |
511 | ||
512 | g.read_thread_stop = 0; | |
513 | g.read_thread_done = 0; | |
514 | ||
515 | pthread_cond_init(&g.read_thread_cond, NULL); | |
516 | pthread_mutex_init(&g.read_thread_mutex, NULL); | |
517 | ||
518 | if (pthread_create(&read_thread_id, NULL, read_thread, NULL)) | |
519 | { | |
520 | fprintf(stderr, "DEBUG: Fatal USB error.\n"); | |
521 | _cupsLangPuts(stderr, _("ERROR: There was an unrecoverable USB error.\n")); | |
522 | fputs("DEBUG: Couldn't create read thread\n", stderr); | |
523 | registry_close(); | |
524 | return (CUPS_BACKEND_STOP); | |
525 | } | |
526 | ||
527 | /* | |
528 | * The main thread sends the print file... | |
529 | */ | |
530 | ||
531 | g.drain_output = 0; | |
532 | g.print_bytes = 0; | |
533 | total_bytes = 0; | |
534 | print_ptr = print_buffer; | |
535 | ||
536 | while (status == noErr && copies-- > 0) | |
537 | { | |
538 | _cupsLangPuts(stderr, _("INFO: Sending print data...\n")); | |
539 | ||
540 | if (print_fd != STDIN_FILENO) | |
541 | { | |
542 | fputs("PAGE: 1 1\n", stderr); | |
543 | lseek(print_fd, 0, SEEK_SET); | |
544 | } | |
545 | ||
546 | while (status == noErr) | |
547 | { | |
548 | FD_ZERO(&input_set); | |
549 | ||
550 | if (!g.print_bytes) | |
551 | FD_SET(print_fd, &input_set); | |
552 | ||
553 | /* | |
554 | * Calculate select timeout... | |
555 | * If we have data waiting to send timeout is 100ms. | |
556 | * else if we're draining print_fd timeout is 0. | |
557 | * else we're waiting forever... | |
558 | */ | |
559 | ||
560 | if (g.print_bytes) | |
561 | { | |
562 | stimeout.tv_sec = 0; | |
563 | stimeout.tv_usec = 100000; /* 100ms */ | |
564 | timeout = &stimeout; | |
565 | } | |
566 | else if (g.drain_output) | |
567 | { | |
568 | stimeout.tv_sec = 0; | |
569 | stimeout.tv_usec = 0; | |
570 | timeout = &stimeout; | |
571 | } | |
572 | else | |
573 | timeout = NULL; | |
574 | ||
575 | /* | |
576 | * I/O is unlocked around select... | |
577 | */ | |
578 | ||
579 | pthread_mutex_lock(&g.readwrite_lock_mutex); | |
580 | g.readwrite_lock = 0; | |
581 | pthread_cond_signal(&g.readwrite_lock_cond); | |
582 | pthread_mutex_unlock(&g.readwrite_lock_mutex); | |
583 | ||
584 | nfds = select(print_fd + 1, &input_set, NULL, NULL, timeout); | |
585 | ||
586 | /* | |
587 | * Reacquire the lock... | |
588 | */ | |
589 | ||
590 | pthread_mutex_lock(&g.readwrite_lock_mutex); | |
591 | while (g.readwrite_lock) | |
592 | pthread_cond_wait(&g.readwrite_lock_cond, &g.readwrite_lock_mutex); | |
593 | g.readwrite_lock = 1; | |
594 | pthread_mutex_unlock(&g.readwrite_lock_mutex); | |
595 | ||
596 | if (nfds < 0) | |
597 | { | |
598 | if (errno == EINTR && total_bytes == 0) | |
599 | { | |
600 | fputs("DEBUG: Received an interrupt before any bytes were " | |
601 | "written, aborting\n", stderr); | |
602 | registry_close(); | |
603 | return (CUPS_BACKEND_OK); | |
604 | } | |
605 | else if (errno != EAGAIN && errno != EINTR) | |
606 | { | |
607 | _cupsLangPuts(stderr, _("ERROR: Unable to read print data.\n")); | |
608 | perror("DEBUG: select"); | |
609 | registry_close(); | |
610 | return (CUPS_BACKEND_FAILED); | |
611 | } | |
612 | } | |
613 | ||
614 | /* | |
615 | * If drain output has finished send a response... | |
616 | */ | |
617 | ||
618 | if (g.drain_output && !nfds && !g.print_bytes) | |
619 | { | |
620 | /* Send a response... */ | |
621 | cupsSideChannelWrite(CUPS_SC_CMD_DRAIN_OUTPUT, CUPS_SC_STATUS_OK, NULL, 0, 1.0); | |
622 | g.drain_output = 0; | |
623 | } | |
624 | ||
625 | /* | |
626 | * Check if we have print data ready... | |
627 | */ | |
628 | ||
629 | if (FD_ISSET(print_fd, &input_set)) | |
630 | { | |
631 | #if DEBUG_WRITES | |
632 | g.debug_bytes += 512; | |
633 | if (g.debug_bytes > sizeof(print_buffer)) | |
634 | g.debug_bytes = 512; | |
635 | ||
636 | g.print_bytes = read(print_fd, print_buffer, g.debug_bytes); | |
637 | ||
638 | #else | |
639 | g.print_bytes = read(print_fd, print_buffer, sizeof(print_buffer)); | |
640 | #endif /* DEBUG_WRITES */ | |
641 | ||
642 | if (g.print_bytes < 0) | |
643 | { | |
644 | /* | |
645 | * Read error - bail if we don't see EAGAIN or EINTR... | |
646 | */ | |
647 | ||
648 | if (errno != EAGAIN && errno != EINTR) | |
649 | { | |
650 | _cupsLangPuts(stderr, _("ERROR: Unable to read print data.\n")); | |
651 | perror("DEBUG: read"); | |
652 | registry_close(); | |
653 | return (CUPS_BACKEND_FAILED); | |
654 | } | |
655 | ||
656 | g.print_bytes = 0; | |
657 | } | |
658 | else if (g.print_bytes == 0) | |
659 | { | |
660 | /* | |
661 | * End of file, break out of the loop... | |
662 | */ | |
663 | ||
664 | break; | |
665 | } | |
666 | ||
667 | print_ptr = print_buffer; | |
668 | ||
669 | fprintf(stderr, "DEBUG: Read %d bytes of print data...\n", | |
670 | (int)g.print_bytes); | |
671 | } | |
672 | ||
673 | if (g.print_bytes) | |
674 | { | |
675 | bytes = g.print_bytes; | |
676 | iostatus = (*g.classdriver)->WritePipe(g.classdriver, (UInt8*)print_ptr, &bytes, 0); | |
677 | ||
678 | /* | |
679 | * Ignore timeout errors, but retain the number of bytes written to | |
680 | * avoid sending duplicate data (<rdar://problem/6254911>)... | |
681 | */ | |
682 | ||
683 | if (iostatus == kIOUSBTransactionTimeout) | |
684 | { | |
685 | fputs("DEBUG: Got USB transaction timeout during write\n", stderr); | |
686 | iostatus = 0; | |
687 | } | |
688 | ||
689 | /* | |
690 | * If we've stalled, retry the write... | |
691 | */ | |
692 | ||
693 | else if (iostatus == kIOUSBPipeStalled) | |
694 | { | |
695 | fputs("DEBUG: Got USB pipe stalled during write\n", stderr); | |
696 | ||
697 | bytes = g.print_bytes; | |
698 | iostatus = (*g.classdriver)->WritePipe(g.classdriver, (UInt8*)print_ptr, &bytes, 0); | |
699 | } | |
700 | ||
701 | /* | |
702 | * Retry a write after an aborted write since we probably just got | |
703 | * SIGTERM (<rdar://problem/6860126>)... | |
704 | */ | |
705 | ||
706 | else if (iostatus == kIOReturnAborted) | |
707 | { | |
708 | fputs("DEBUG: Got USB return aborted during write\n", stderr); | |
709 | ||
710 | IOReturn err = (*g.classdriver)->Abort(g.classdriver); | |
711 | fprintf(stderr, "DEBUG: USB class driver Abort returned %x\n", err); | |
712 | ||
713 | #if DEBUG_WRITES | |
714 | sleep(5); | |
715 | #endif /* DEBUG_WRITES */ | |
716 | ||
717 | bytes = g.print_bytes; | |
718 | iostatus = (*g.classdriver)->WritePipe(g.classdriver, (UInt8*)print_ptr, &bytes, 0); | |
719 | } | |
720 | ||
721 | if (iostatus || bytes < 0) | |
722 | { | |
723 | /* | |
724 | * Write error - bail if we don't see an error we can retry... | |
725 | */ | |
726 | _cupsLangPuts(stderr, _("ERROR: Unable to send print data to printer.\n")); | |
727 | fprintf(stderr, "DEBUG: USB class driver WritePipe returned %x\n", | |
728 | iostatus); | |
729 | ||
730 | IOReturn err = (*g.classdriver)->Abort(g.classdriver); | |
731 | fprintf(stderr, "DEBUG: USB class driver Abort returned %x\n", | |
732 | err); | |
733 | ||
734 | status = CUPS_BACKEND_FAILED; | |
735 | break; | |
736 | } | |
737 | else if (bytes > 0) | |
738 | { | |
739 | fprintf(stderr, "DEBUG: Wrote %d bytes of print data...\n", (int)bytes); | |
740 | ||
741 | g.print_bytes -= bytes; | |
742 | print_ptr += bytes; | |
743 | total_bytes += bytes; | |
744 | } | |
745 | } | |
746 | ||
747 | if (print_fd != 0 && status == noErr) | |
748 | fprintf(stderr, "DEBUG: Sending print file, %lld bytes...\n", | |
749 | (off_t)total_bytes); | |
750 | } | |
751 | } | |
752 | ||
753 | fprintf(stderr, "DEBUG: Sent %lld bytes...\n", (off_t)total_bytes); | |
754 | ||
755 | if (!print_fd) | |
756 | { | |
757 | /* | |
758 | * Re-enable the SIGTERM handler so pthread_kill() will work... | |
759 | */ | |
760 | ||
761 | struct sigaction action; /* POSIX signal action */ | |
762 | ||
763 | memset(&action, 0, sizeof(action)); | |
764 | ||
765 | sigemptyset(&action.sa_mask); | |
766 | action.sa_handler = SIG_DFL; | |
767 | sigaction(SIGTERM, &action, NULL); | |
768 | } | |
769 | ||
770 | /* | |
771 | * Wait for the side channel thread to exit... | |
772 | */ | |
773 | ||
774 | if (have_sidechannel) | |
775 | { | |
776 | close(CUPS_SC_FD); | |
777 | pthread_mutex_lock(&g.readwrite_lock_mutex); | |
778 | g.readwrite_lock = 0; | |
779 | pthread_cond_signal(&g.readwrite_lock_cond); | |
780 | pthread_mutex_unlock(&g.readwrite_lock_mutex); | |
781 | ||
782 | g.sidechannel_thread_stop = 1; | |
783 | pthread_mutex_lock(&g.sidechannel_thread_mutex); | |
784 | if (!g.sidechannel_thread_done) | |
785 | { | |
786 | /* | |
787 | * Wait for the side-channel thread to exit... | |
788 | */ | |
789 | ||
790 | cond_timeout.tv_sec = time(NULL) + WAIT_SIDE_DELAY; | |
791 | cond_timeout.tv_nsec = 0; | |
792 | if (pthread_cond_timedwait(&g.sidechannel_thread_cond, | |
793 | &g.sidechannel_thread_mutex, | |
794 | &cond_timeout) != 0) | |
795 | { | |
796 | /* | |
797 | * Force the side-channel thread to exit... | |
798 | */ | |
799 | ||
800 | pthread_kill(sidechannel_thread_id, SIGTERM); | |
801 | } | |
802 | } | |
803 | pthread_mutex_unlock(&g.sidechannel_thread_mutex); | |
804 | ||
805 | pthread_join(sidechannel_thread_id, NULL); | |
806 | ||
807 | pthread_cond_destroy(&g.sidechannel_thread_cond); | |
808 | pthread_mutex_destroy(&g.sidechannel_thread_mutex); | |
809 | } | |
810 | ||
811 | pthread_cond_destroy(&g.readwrite_lock_cond); | |
812 | pthread_mutex_destroy(&g.readwrite_lock_mutex); | |
813 | ||
814 | /* | |
815 | * Signal the read thread to stop... | |
816 | */ | |
817 | ||
818 | g.read_thread_stop = 1; | |
819 | ||
820 | /* | |
821 | * Give the read thread WAIT_EOF_DELAY seconds to complete all the data. If | |
822 | * we are not signaled in that time then force the thread to exit. | |
823 | */ | |
824 | ||
825 | pthread_mutex_lock(&g.read_thread_mutex); | |
826 | ||
827 | if (!g.read_thread_done) | |
828 | { | |
829 | cond_timeout.tv_sec = time(NULL) + WAIT_EOF_DELAY; | |
830 | cond_timeout.tv_nsec = 0; | |
831 | ||
832 | if (pthread_cond_timedwait(&g.read_thread_cond, &g.read_thread_mutex, | |
833 | &cond_timeout) != 0) | |
834 | { | |
835 | /* | |
836 | * Force the read thread to exit... | |
837 | */ | |
838 | ||
839 | g.wait_eof = 0; | |
840 | pthread_kill(read_thread_id, SIGTERM); | |
841 | } | |
842 | } | |
843 | pthread_mutex_unlock(&g.read_thread_mutex); | |
844 | ||
845 | pthread_join(read_thread_id, NULL); /* wait for the read thread to return */ | |
846 | ||
847 | pthread_cond_destroy(&g.read_thread_cond); | |
848 | pthread_mutex_destroy(&g.read_thread_mutex); | |
849 | ||
850 | /* | |
851 | * Close the connection and input file and general clean up... | |
852 | */ | |
853 | ||
854 | registry_close(); | |
855 | ||
856 | if (print_fd != STDIN_FILENO) | |
857 | close(print_fd); | |
858 | ||
859 | if (g.make != NULL) | |
860 | CFRelease(g.make); | |
861 | ||
862 | if (g.model != NULL) | |
863 | CFRelease(g.model); | |
864 | ||
865 | if (g.serial != NULL) | |
866 | CFRelease(g.serial); | |
867 | ||
868 | if (g.printer_obj != 0x0) | |
869 | IOObjectRelease(g.printer_obj); | |
870 | ||
871 | return status; | |
872 | } | |
873 | ||
874 | ||
875 | /* | |
876 | * 'read_thread()' - Thread to read the backchannel data on. | |
877 | */ | |
878 | ||
879 | static void *read_thread(void *reference) | |
880 | { | |
881 | UInt8 readbuffer[512]; | |
882 | UInt32 rbytes; | |
883 | kern_return_t readstatus; | |
884 | struct mach_timebase_info timeBaseInfo; | |
885 | uint64_t start, | |
886 | delay; | |
887 | ||
888 | /* Calculate what 250 milliSeconds are in mach absolute time... | |
889 | */ | |
890 | mach_timebase_info(&timeBaseInfo); | |
891 | delay = ((uint64_t)250000000 * (uint64_t)timeBaseInfo.denom) / (uint64_t)timeBaseInfo.numer; | |
892 | ||
893 | do | |
894 | { | |
895 | /* | |
896 | * Remember when we started so we can throttle the loop after the read call... | |
897 | */ | |
898 | ||
899 | start = mach_absolute_time(); | |
900 | ||
901 | rbytes = sizeof(readbuffer); | |
902 | readstatus = (*g.classdriver)->ReadPipe(g.classdriver, readbuffer, &rbytes); | |
903 | if (readstatus == kIOReturnSuccess && rbytes > 0) | |
904 | { | |
905 | fprintf(stderr, "DEBUG: Read %d bytes of back-channel data...\n", | |
906 | (int)rbytes); | |
907 | cupsBackChannelWrite((char*)readbuffer, rbytes, 1.0); | |
908 | ||
909 | /* cntrl-d is echoed by the printer. | |
910 | * NOTES: | |
911 | * Xerox Phaser 6250D doesn't echo the cntrl-d. | |
912 | * Xerox Phaser 6250D doesn't always send the product query. | |
913 | */ | |
914 | if (g.wait_eof && readbuffer[rbytes-1] == 0x4) | |
915 | break; | |
916 | ||
917 | #ifdef PARSE_PS_ERRORS | |
918 | parse_pserror(readbuffer, rbytes); | |
919 | #endif | |
920 | } | |
921 | else if (readstatus == kIOUSBTransactionTimeout) | |
922 | fputs("DEBUG: Got USB transaction timeout during read\n", stderr); | |
923 | else if (readstatus == kIOUSBPipeStalled) | |
924 | fputs("DEBUG: Got USB pipe stalled during read\n", stderr); | |
925 | else if (readstatus == kIOReturnAborted) | |
926 | fputs("DEBUG: Got USB return aborted during read\n", stderr); | |
927 | ||
928 | /* | |
929 | * Make sure this loop executes no more than once every 250 miliseconds... | |
930 | */ | |
931 | ||
932 | if ((readstatus != kIOReturnSuccess || rbytes == 0) && (g.wait_eof || !g.read_thread_stop)) | |
933 | mach_wait_until(start + delay); | |
934 | ||
935 | } while (g.wait_eof || !g.read_thread_stop); /* Abort from main thread tests error here */ | |
936 | ||
937 | /* | |
938 | * Let the main thread know that we have completed the read thread... | |
939 | */ | |
940 | ||
941 | pthread_mutex_lock(&g.read_thread_mutex); | |
942 | g.read_thread_done = 1; | |
943 | pthread_cond_signal(&g.read_thread_cond); | |
944 | pthread_mutex_unlock(&g.read_thread_mutex); | |
945 | ||
946 | return NULL; | |
947 | } | |
948 | ||
949 | ||
950 | /* | |
951 | * 'sidechannel_thread()' - Handle side-channel requests. | |
952 | */ | |
953 | ||
954 | static void* | |
955 | sidechannel_thread(void *reference) | |
956 | { | |
957 | cups_sc_command_t command; /* Request command */ | |
958 | cups_sc_status_t status; /* Request/response status */ | |
959 | char data[2048]; /* Request/response data */ | |
960 | int datalen; /* Request/response data size */ | |
961 | ||
962 | ||
963 | do | |
964 | { | |
965 | datalen = sizeof(data); | |
966 | ||
967 | if (cupsSideChannelRead(&command, &status, data, &datalen, 1.0)) | |
968 | { | |
969 | if (status == CUPS_SC_STATUS_TIMEOUT) | |
970 | continue; | |
971 | else | |
972 | break; | |
973 | } | |
974 | ||
975 | switch (command) | |
976 | { | |
977 | case CUPS_SC_CMD_SOFT_RESET: /* Do a soft reset */ | |
978 | fputs("DEBUG: CUPS_SC_CMD_SOFT_RESET received from driver...\n", | |
979 | stderr); | |
980 | ||
981 | if ((*g.classdriver)->SoftReset != NULL) | |
982 | { | |
983 | soft_reset(); | |
984 | cupsSideChannelWrite(command, CUPS_SC_STATUS_OK, NULL, 0, 1.0); | |
985 | fputs("DEBUG: Returning status CUPS_STATUS_OK with no bytes...\n", | |
986 | stderr); | |
987 | } | |
988 | else | |
989 | { | |
990 | cupsSideChannelWrite(command, CUPS_SC_STATUS_NOT_IMPLEMENTED, | |
991 | NULL, 0, 1.0); | |
992 | fputs("DEBUG: Returning status CUPS_STATUS_NOT_IMPLEMENTED with " | |
993 | "no bytes...\n", stderr); | |
994 | } | |
995 | break; | |
996 | ||
997 | case CUPS_SC_CMD_DRAIN_OUTPUT: /* Drain all pending output */ | |
998 | fputs("DEBUG: CUPS_SC_CMD_DRAIN_OUTPUT received from driver...\n", | |
999 | stderr); | |
1000 | ||
1001 | g.drain_output = 1; | |
1002 | break; | |
1003 | ||
1004 | case CUPS_SC_CMD_GET_BIDI: /* Is the connection bidirectional? */ | |
1005 | fputs("DEBUG: CUPS_SC_CMD_GET_BIDI received from driver...\n", | |
1006 | stderr); | |
1007 | ||
1008 | data[0] = g.bidi_flag; | |
1009 | cupsSideChannelWrite(command, CUPS_SC_STATUS_OK, data, 1, 1.0); | |
1010 | ||
1011 | fprintf(stderr, | |
1012 | "DEBUG: Returned CUPS_SC_STATUS_OK with 1 byte (%02X)...\n", | |
1013 | data[0]); | |
1014 | break; | |
1015 | ||
1016 | case CUPS_SC_CMD_GET_DEVICE_ID: /* Return IEEE-1284 device ID */ | |
1017 | fputs("DEBUG: CUPS_SC_CMD_GET_DEVICE_ID received from driver...\n", | |
1018 | stderr); | |
1019 | ||
1020 | datalen = sizeof(data); | |
1021 | get_device_id(&status, data, &datalen); | |
1022 | cupsSideChannelWrite(command, CUPS_SC_STATUS_OK, data, datalen, 1.0); | |
1023 | ||
1024 | if (datalen < sizeof(data)) | |
1025 | data[datalen] = '\0'; | |
1026 | else | |
1027 | data[sizeof(data) - 1] = '\0'; | |
1028 | ||
1029 | fprintf(stderr, | |
1030 | "DEBUG: Returning CUPS_SC_STATUS_OK with %d bytes (%s)...\n", | |
1031 | datalen, data); | |
1032 | break; | |
1033 | ||
1034 | case CUPS_SC_CMD_GET_STATE: /* Return device state */ | |
1035 | fputs("DEBUG: CUPS_SC_CMD_GET_STATE received from driver...\n", | |
1036 | stderr); | |
1037 | ||
1038 | data[0] = CUPS_SC_STATE_ONLINE; | |
1039 | cupsSideChannelWrite(command, CUPS_SC_STATUS_OK, data, 1, 1.0); | |
1040 | ||
1041 | fprintf(stderr, | |
1042 | "DEBUG: Returned CUPS_SC_STATUS_OK with 1 byte (%02X)...\n", | |
1043 | data[0]); | |
1044 | break; | |
1045 | ||
1046 | default: | |
1047 | fprintf(stderr, "DEBUG: Unknown side-channel command (%d) received " | |
1048 | "from driver...\n", command); | |
1049 | ||
1050 | cupsSideChannelWrite(command, CUPS_SC_STATUS_NOT_IMPLEMENTED, | |
1051 | NULL, 0, 1.0); | |
1052 | ||
1053 | fputs("DEBUG: Returned CUPS_SC_STATUS_NOT_IMPLEMENTED with no bytes...\n", | |
1054 | stderr); | |
1055 | break; | |
1056 | } | |
1057 | } | |
1058 | while (!g.sidechannel_thread_stop); | |
1059 | ||
1060 | pthread_mutex_lock(&g.sidechannel_thread_mutex); | |
1061 | g.sidechannel_thread_done = 1; | |
1062 | pthread_cond_signal(&g.sidechannel_thread_cond); | |
1063 | pthread_mutex_unlock(&g.sidechannel_thread_mutex); | |
1064 | ||
1065 | return NULL; | |
1066 | } | |
1067 | ||
1068 | ||
1069 | #pragma mark - | |
1070 | /* | |
1071 | * 'iterate_printers()' - Iterate over all the printers. | |
1072 | */ | |
1073 | ||
1074 | static void iterate_printers(iterator_callback_t callBack, | |
1075 | void *userdata) | |
1076 | { | |
1077 | mach_port_t masterPort = 0x0; | |
1078 | kern_return_t kr = IOMasterPort (bootstrap_port, &masterPort); | |
1079 | ||
1080 | if (kr == kIOReturnSuccess && masterPort != 0x0) | |
1081 | { | |
1082 | io_iterator_t addIterator = 0x0; | |
1083 | ||
1084 | iterator_reference_t reference = { callBack, userdata, true }; | |
1085 | IONotificationPortRef addNotification = IONotificationPortCreate(masterPort); | |
1086 | ||
1087 | int klass = kUSBPrintingClass; | |
1088 | int subklass = kUSBPrintingSubclass; | |
1089 | ||
1090 | CFNumberRef usb_klass = CFNumberCreate(NULL, kCFNumberIntType, &klass); | |
1091 | CFNumberRef usb_subklass = CFNumberCreate(NULL, kCFNumberIntType, &subklass); | |
1092 | CFMutableDictionaryRef usbPrinterMatchDictionary = IOServiceMatching(kIOUSBInterfaceClassName); | |
1093 | ||
1094 | CFDictionaryAddValue(usbPrinterMatchDictionary, CFSTR("bInterfaceClass"), usb_klass); | |
1095 | CFDictionaryAddValue(usbPrinterMatchDictionary, CFSTR("bInterfaceSubClass"), usb_subklass); | |
1096 | ||
1097 | CFRelease(usb_klass); | |
1098 | CFRelease(usb_subklass); | |
1099 | ||
1100 | kr = IOServiceAddMatchingNotification(addNotification, kIOMatchedNotification, usbPrinterMatchDictionary, &device_added, &reference, &addIterator); | |
1101 | if (addIterator != 0x0) | |
1102 | { | |
1103 | device_added (&reference, addIterator); | |
1104 | ||
1105 | if (reference.keepRunning) | |
1106 | { | |
1107 | CFRunLoopAddSource(CFRunLoopGetCurrent(), IONotificationPortGetRunLoopSource(addNotification), kCFRunLoopDefaultMode); | |
1108 | CFRunLoopRun(); | |
1109 | } | |
1110 | IOObjectRelease(addIterator); | |
1111 | } | |
1112 | mach_port_deallocate(mach_task_self(), masterPort); | |
1113 | } | |
1114 | } | |
1115 | ||
1116 | ||
1117 | /* | |
1118 | * 'device_added()' - Device added notifier. | |
1119 | */ | |
1120 | ||
1121 | static void device_added(void *userdata, | |
1122 | io_iterator_t iterator) | |
1123 | { | |
1124 | iterator_reference_t *reference = userdata; | |
1125 | ||
1126 | io_service_t obj; | |
1127 | while (reference->keepRunning && (obj = IOIteratorNext(iterator)) != 0x0) | |
1128 | { | |
1129 | if (reference->callback != NULL) | |
1130 | reference->keepRunning = reference->callback(reference->userdata, obj); | |
1131 | ||
1132 | IOObjectRelease(obj); | |
1133 | } | |
1134 | ||
1135 | /* One last call to the call back now that we are not longer have printers left to iterate... | |
1136 | */ | |
1137 | if (reference->keepRunning) | |
1138 | reference->keepRunning = reference->callback(reference->userdata, 0x0); | |
1139 | ||
1140 | if (!reference->keepRunning) | |
1141 | CFRunLoopStop(CFRunLoopGetCurrent()); | |
1142 | } | |
1143 | ||
1144 | ||
1145 | /* | |
1146 | * 'list_device_cb()' - list_device iterator callback. | |
1147 | */ | |
1148 | ||
1149 | static Boolean list_device_cb(void *refcon, | |
1150 | io_service_t obj) | |
1151 | { | |
1152 | Boolean keepRunning = (obj != 0x0); | |
1153 | ||
1154 | if (keepRunning) | |
1155 | { | |
1156 | CFStringRef deviceIDString = NULL; | |
1157 | UInt32 deviceLocation = 0; | |
1158 | UInt8 interfaceNum = 0; | |
1159 | ||
1160 | copy_devicestring(obj, &deviceIDString, &deviceLocation, &interfaceNum); | |
1161 | if (deviceIDString != NULL) | |
1162 | { | |
1163 | CFStringRef make = NULL, model = NULL, serial = NULL; | |
1164 | char uristr[1024], makestr[1024], modelstr[1024], serialstr[1024]; | |
1165 | char optionsstr[1024], idstr[1024], make_modelstr[1024]; | |
1166 | ||
1167 | copy_deviceinfo(deviceIDString, &make, &model, &serial); | |
1168 | CFStringGetCString(deviceIDString, idstr, sizeof(idstr), | |
1169 | kCFStringEncodingUTF8); | |
1170 | backendGetMakeModel(idstr, make_modelstr, sizeof(make_modelstr)); | |
1171 | ||
1172 | modelstr[0] = '/'; | |
1173 | ||
1174 | if (!make || | |
1175 | !CFStringGetCString(make, makestr, sizeof(makestr), | |
1176 | kCFStringEncodingUTF8)) | |
1177 | strcpy(makestr, "Unknown"); | |
1178 | ||
1179 | if (!model || | |
1180 | !CFStringGetCString(model, &modelstr[1], sizeof(modelstr)-1, | |
1181 | kCFStringEncodingUTF8)) | |
1182 | strcpy(modelstr + 1, "Printer"); | |
1183 | ||
1184 | optionsstr[0] = '\0'; | |
1185 | if (serial != NULL) | |
1186 | { | |
1187 | CFStringGetCString(serial, serialstr, sizeof(serialstr), kCFStringEncodingUTF8); | |
1188 | snprintf(optionsstr, sizeof(optionsstr), "?serial=%s", serialstr); | |
1189 | } | |
1190 | else if (deviceLocation != 0) | |
1191 | snprintf(optionsstr, sizeof(optionsstr), "?location=%x", (unsigned)deviceLocation); | |
1192 | ||
1193 | httpAssembleURI(HTTP_URI_CODING_ALL, uristr, sizeof(uristr), "usb", NULL, makestr, 0, modelstr); | |
1194 | strlcat(uristr, optionsstr, sizeof(uristr)); | |
1195 | ||
1196 | cupsBackendReport("direct", uristr, make_modelstr, make_modelstr, idstr, | |
1197 | NULL); | |
1198 | ||
1199 | release_deviceinfo(&make, &model, &serial); | |
1200 | CFRelease(deviceIDString); | |
1201 | } | |
1202 | } | |
1203 | ||
1204 | return keepRunning; | |
1205 | } | |
1206 | ||
1207 | ||
1208 | /* | |
1209 | * 'find_device_cb()' - print_device iterator callback. | |
1210 | */ | |
1211 | ||
1212 | static Boolean find_device_cb(void *refcon, | |
1213 | io_service_t obj) | |
1214 | { | |
1215 | Boolean keepLooking = true; | |
1216 | ||
1217 | if (obj != 0x0) | |
1218 | { | |
1219 | CFStringRef idString = NULL; | |
1220 | UInt32 location = -1; | |
1221 | UInt8 interfaceNum = 0; | |
1222 | ||
1223 | copy_devicestring(obj, &idString, &location, &interfaceNum); | |
1224 | if (idString != NULL) | |
1225 | { | |
1226 | CFStringRef make = NULL, model = NULL, serial = NULL; | |
1227 | ||
1228 | copy_deviceinfo(idString, &make, &model, &serial); | |
1229 | if (make && CFStringCompare(make, g.make, kCFCompareCaseInsensitive) == kCFCompareEqualTo) | |
1230 | { | |
1231 | if (model && CFStringCompare(model, g.model, kCFCompareCaseInsensitive) == kCFCompareEqualTo) | |
1232 | { | |
1233 | if (g.serial != NULL && CFStringGetLength(g.serial) > 0) | |
1234 | { | |
1235 | if (serial != NULL && CFStringCompare(serial, g.serial, kCFCompareCaseInsensitive) == kCFCompareEqualTo) | |
1236 | { | |
1237 | IOObjectRetain(obj); | |
1238 | g.printer_obj = obj; | |
1239 | keepLooking = false; | |
1240 | } | |
1241 | } | |
1242 | else | |
1243 | { | |
1244 | if (g.printer_obj != 0) | |
1245 | IOObjectRelease(g.printer_obj); | |
1246 | ||
1247 | g.printer_obj = obj; | |
1248 | IOObjectRetain(obj); | |
1249 | ||
1250 | if (g.location == 0 || g.location == location) | |
1251 | keepLooking = false; | |
1252 | } | |
1253 | if ( !keepLooking ) | |
1254 | g.interfaceNum = interfaceNum; | |
1255 | } | |
1256 | } | |
1257 | ||
1258 | release_deviceinfo(&make, &model, &serial); | |
1259 | CFRelease(idString); | |
1260 | } | |
1261 | } | |
1262 | else | |
1263 | { | |
1264 | keepLooking = (g.printer_obj == 0); | |
1265 | if (obj == 0x0 && keepLooking) | |
1266 | { | |
1267 | CFRunLoopTimerContext context = { 0, refcon, NULL, NULL, NULL }; | |
1268 | CFRunLoopTimerRef timer = CFRunLoopTimerCreate(NULL, CFAbsoluteTimeGetCurrent() + 1.0, 10, 0x0, 0x0, status_timer_cb, &context); | |
1269 | if (timer != NULL) | |
1270 | { | |
1271 | CFRunLoopAddTimer(CFRunLoopGetCurrent(), timer, kCFRunLoopDefaultMode); | |
1272 | g.status_timer = timer; | |
1273 | } | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | if (!keepLooking && g.status_timer != NULL) | |
1278 | { | |
1279 | fputs("STATE: -offline-report\n", stderr); | |
1280 | _cupsLangPuts(stderr, _("INFO: Printer is now online.\n")); | |
1281 | CFRunLoopRemoveTimer(CFRunLoopGetCurrent(), g.status_timer, kCFRunLoopDefaultMode); | |
1282 | CFRelease(g.status_timer); | |
1283 | g.status_timer = NULL; | |
1284 | } | |
1285 | ||
1286 | return keepLooking; | |
1287 | } | |
1288 | ||
1289 | ||
1290 | /* | |
1291 | * 'status_timer_cb()' - Status timer callback. | |
1292 | */ | |
1293 | ||
1294 | static void status_timer_cb(CFRunLoopTimerRef timer, | |
1295 | void *info) | |
1296 | { | |
1297 | fputs("STATE: +offline-report\n", stderr); | |
1298 | _cupsLangPuts(stderr, _("INFO: Printer is offline.\n")); | |
1299 | ||
1300 | if (getenv("CLASS") != NULL) | |
1301 | { | |
1302 | /* | |
1303 | * If the CLASS environment variable is set, the job was submitted | |
1304 | * to a class and not to a specific queue. In this case, we want | |
1305 | * to abort immediately so that the job can be requeued on the next | |
1306 | * available printer in the class. | |
1307 | * | |
1308 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
1309 | */ | |
1310 | ||
1311 | sleep(5); | |
1312 | ||
1313 | exit(CUPS_BACKEND_FAILED); | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | ||
1318 | #pragma mark - | |
1319 | /* | |
1320 | * 'copy_deviceinfo()' - Copy strings from the 1284 device ID. | |
1321 | */ | |
1322 | ||
1323 | static void copy_deviceinfo(CFStringRef deviceIDString, | |
1324 | CFStringRef *make, | |
1325 | CFStringRef *model, | |
1326 | CFStringRef *serial) | |
1327 | { | |
1328 | CFStringRef modelKeys[] = { CFSTR("MDL:"), CFSTR("MODEL:"), NULL }; | |
1329 | CFStringRef makeKeys[] = { CFSTR("MFG:"), CFSTR("MANUFACTURER:"), NULL }; | |
1330 | CFStringRef serialKeys[] = { CFSTR("SN:"), CFSTR("SERN:"), NULL }; | |
1331 | ||
1332 | if (make != NULL) | |
1333 | *make = copy_value_for_key(deviceIDString, makeKeys); | |
1334 | ||
1335 | if (model != NULL) | |
1336 | *model = copy_value_for_key(deviceIDString, modelKeys); | |
1337 | ||
1338 | if (serial != NULL) | |
1339 | *serial = copy_value_for_key(deviceIDString, serialKeys); | |
1340 | } | |
1341 | ||
1342 | ||
1343 | /* | |
1344 | * 'release_deviceinfo()' - Release deviceinfo strings. | |
1345 | */ | |
1346 | ||
1347 | static void release_deviceinfo(CFStringRef *make, | |
1348 | CFStringRef *model, | |
1349 | CFStringRef *serial) | |
1350 | { | |
1351 | if (make != NULL && *make != NULL) | |
1352 | { | |
1353 | CFRelease(*make); | |
1354 | *make = NULL; | |
1355 | } | |
1356 | ||
1357 | if (model != NULL && *model != NULL) | |
1358 | { | |
1359 | CFRelease(*model); | |
1360 | *model = NULL; | |
1361 | } | |
1362 | ||
1363 | if (serial != NULL && *serial != NULL) | |
1364 | { | |
1365 | CFRelease(*serial); | |
1366 | *serial = NULL; | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | ||
1371 | #pragma mark - | |
1372 | /* | |
1373 | * 'load_classdriver()' - Load a classdriver. | |
1374 | */ | |
1375 | ||
1376 | static kern_return_t load_classdriver(CFStringRef driverPath, | |
1377 | printer_interface_t intf, | |
1378 | classdriver_t ***printerDriver) | |
1379 | { | |
1380 | kern_return_t kr = kUSBPrinterClassDeviceNotOpen; | |
1381 | classdriver_t **driver = NULL; | |
1382 | CFStringRef bundle = driverPath ? driverPath : kUSBGenericTOPrinterClassDriver; | |
1383 | char bundlestr[1024]; /* Bundle path */ | |
1384 | struct stat bundleinfo; /* File information for bundle */ | |
1385 | CFURLRef url; /* URL for driver */ | |
1386 | CFPlugInRef plugin = NULL; /* Plug-in address */ | |
1387 | ||
1388 | ||
1389 | CFStringGetCString(bundle, bundlestr, sizeof(bundlestr), kCFStringEncodingUTF8); | |
1390 | ||
1391 | /* | |
1392 | * Validate permissions for the class driver... | |
1393 | */ | |
1394 | ||
1395 | if (stat(bundlestr, &bundleinfo)) | |
1396 | { | |
1397 | fprintf(stderr, "DEBUG: Unable to load class driver \"%s\": %s\n", | |
1398 | bundlestr, strerror(errno)); | |
1399 | if (errno == ENOENT) | |
1400 | return (load_classdriver(NULL, intf, printerDriver)); | |
1401 | else | |
1402 | return (kr); | |
1403 | } | |
1404 | else if (bundleinfo.st_mode & S_IWOTH) | |
1405 | { | |
1406 | fprintf(stderr, "DEBUG: Unable to load class driver \"%s\": insecure file " | |
1407 | "permissions (0%o)\n", bundlestr, bundleinfo.st_mode); | |
1408 | return (kr); | |
1409 | } | |
1410 | ||
1411 | /* | |
1412 | * Try loading the class driver... | |
1413 | */ | |
1414 | ||
1415 | url = CFURLCreateWithFileSystemPath(NULL, bundle, kCFURLPOSIXPathStyle, true); | |
1416 | ||
1417 | if (url) | |
1418 | { | |
1419 | plugin = CFPlugInCreate(NULL, url); | |
1420 | CFRelease(url); | |
1421 | } | |
1422 | else | |
1423 | plugin = NULL; | |
1424 | ||
1425 | if (plugin) | |
1426 | { | |
1427 | CFArrayRef factories = CFPlugInFindFactoriesForPlugInTypeInPlugIn(kUSBPrinterClassTypeID, plugin); | |
1428 | if (factories != NULL && CFArrayGetCount(factories) > 0) | |
1429 | { | |
1430 | CFUUIDRef factoryID = CFArrayGetValueAtIndex(factories, 0); | |
1431 | IUnknownVTbl **iunknown = CFPlugInInstanceCreate(NULL, factoryID, kUSBPrinterClassTypeID); | |
1432 | if (iunknown != NULL) | |
1433 | { | |
1434 | kr = (*iunknown)->QueryInterface(iunknown, CFUUIDGetUUIDBytes(kUSBPrinterClassInterfaceID), (LPVOID *)&driver); | |
1435 | if (kr == kIOReturnSuccess && driver != NULL) | |
1436 | { | |
1437 | classdriver_t **genericDriver = NULL; | |
1438 | if (driverPath != NULL && CFStringCompare(driverPath, kUSBGenericTOPrinterClassDriver, 0) != kCFCompareEqualTo) | |
1439 | kr = load_classdriver(NULL, intf, &genericDriver); | |
1440 | ||
1441 | if (kr == kIOReturnSuccess) | |
1442 | { | |
1443 | (*driver)->interface = intf; | |
1444 | (*driver)->Initialize(driver, genericDriver); | |
1445 | ||
1446 | (*driver)->plugin = plugin; | |
1447 | (*driver)->interface = intf; | |
1448 | *printerDriver = driver; | |
1449 | } | |
1450 | } | |
1451 | (*iunknown)->Release(iunknown); | |
1452 | } | |
1453 | CFRelease(factories); | |
1454 | } | |
1455 | } | |
1456 | ||
1457 | fprintf(stderr, "DEBUG: load_classdriver(%s) (kr:0x%08x)\n", bundlestr, (int)kr); | |
1458 | ||
1459 | return (kr); | |
1460 | } | |
1461 | ||
1462 | ||
1463 | /* | |
1464 | * 'unload_classdriver()' - Unload a classdriver. | |
1465 | */ | |
1466 | ||
1467 | static kern_return_t unload_classdriver(classdriver_t ***classdriver) | |
1468 | { | |
1469 | if (*classdriver != NULL) | |
1470 | { | |
1471 | (**classdriver)->Release(*classdriver); | |
1472 | *classdriver = NULL; | |
1473 | } | |
1474 | ||
1475 | return kIOReturnSuccess; | |
1476 | } | |
1477 | ||
1478 | ||
1479 | /* | |
1480 | * 'load_printerdriver()' - Load vendor's classdriver. | |
1481 | * | |
1482 | * If driverBundlePath is not NULL on return it is the callers responsbility to release it! | |
1483 | */ | |
1484 | ||
1485 | static kern_return_t load_printerdriver(CFStringRef *driverBundlePath) | |
1486 | { | |
1487 | IOCFPlugInInterface **iodev = NULL; | |
1488 | SInt32 score; | |
1489 | kern_return_t kr; | |
1490 | printer_interface_t intf; | |
1491 | HRESULT res; | |
1492 | ||
1493 | kr = IOCreatePlugInInterfaceForService(g.printer_obj, kIOUSBInterfaceUserClientTypeID, kIOCFPlugInInterfaceID, &iodev, &score); | |
1494 | if (kr == kIOReturnSuccess) | |
1495 | { | |
1496 | if ((res = (*iodev)->QueryInterface(iodev, USB_INTERFACE_KIND, (LPVOID *) &intf)) == noErr) | |
1497 | { | |
1498 | *driverBundlePath = IORegistryEntryCreateCFProperty(g.printer_obj, kUSBClassDriverProperty, NULL, kNilOptions); | |
1499 | ||
1500 | kr = load_classdriver(*driverBundlePath, intf, &g.classdriver); | |
1501 | ||
1502 | if (kr != kIOReturnSuccess) | |
1503 | (*intf)->Release(intf); | |
1504 | } | |
1505 | IODestroyPlugInInterface(iodev); | |
1506 | } | |
1507 | return kr; | |
1508 | } | |
1509 | ||
1510 | ||
1511 | /* | |
1512 | * 'registry_open()' - Open a connection to the printer. | |
1513 | */ | |
1514 | ||
1515 | static kern_return_t registry_open(CFStringRef *driverBundlePath) | |
1516 | { | |
1517 | g.bidi_flag = 0; /* 0=unidirectional */ | |
1518 | ||
1519 | kern_return_t kr = load_printerdriver(driverBundlePath); | |
1520 | if (kr != kIOReturnSuccess) | |
1521 | kr = -2; | |
1522 | ||
1523 | if (g.classdriver != NULL) | |
1524 | { | |
1525 | (*g.classdriver)->interfaceNumber = g.interfaceNum; | |
1526 | kr = (*g.classdriver)->Open(g.classdriver, g.location, kUSBPrintingProtocolBidirectional); | |
1527 | if (kr != kIOReturnSuccess || (*g.classdriver)->interface == NULL) | |
1528 | { | |
1529 | kr = (*g.classdriver)->Open(g.classdriver, g.location, kUSBPrintingProtocolUnidirectional); | |
1530 | if (kr == kIOReturnSuccess) | |
1531 | { | |
1532 | if ((*g.classdriver)->interface == NULL) | |
1533 | { | |
1534 | (*g.classdriver)->Close(g.classdriver); | |
1535 | kr = -1; | |
1536 | } | |
1537 | } | |
1538 | } | |
1539 | else | |
1540 | g.bidi_flag = 1; /* 1=bidirectional */ | |
1541 | } | |
1542 | ||
1543 | if (kr != kIOReturnSuccess) | |
1544 | unload_classdriver(&g.classdriver); | |
1545 | ||
1546 | return kr; | |
1547 | } | |
1548 | ||
1549 | ||
1550 | /* | |
1551 | * 'registry_close()' - Close the connection to the printer. | |
1552 | */ | |
1553 | ||
1554 | static kern_return_t registry_close() | |
1555 | { | |
1556 | if (g.classdriver != NULL) | |
1557 | (*g.classdriver)->Close(g.classdriver); | |
1558 | ||
1559 | unload_classdriver(&g.classdriver); | |
1560 | return kIOReturnSuccess; | |
1561 | } | |
1562 | ||
1563 | ||
1564 | /* | |
1565 | * 'copy_deviceid()' - Copy the 1284 device id string. | |
1566 | */ | |
1567 | ||
1568 | static OSStatus copy_deviceid(classdriver_t **classdriver, | |
1569 | CFStringRef *deviceID) | |
1570 | { | |
1571 | CFStringRef devID = NULL, | |
1572 | ||
1573 | deviceMake = NULL, | |
1574 | deviceModel = NULL, | |
1575 | deviceSerial = NULL; | |
1576 | ||
1577 | OSStatus err = (*classdriver)->GetDeviceID(classdriver, &devID, DEFAULT_TIMEOUT); | |
1578 | ||
1579 | copy_deviceinfo(devID, &deviceMake, &deviceModel, &deviceSerial); | |
1580 | ||
1581 | if (deviceMake == NULL || deviceModel == NULL || deviceSerial == NULL) | |
1582 | { | |
1583 | IOUSBDeviceDescriptor desc; | |
1584 | iodevice_request_t request; | |
1585 | ||
1586 | request.requestType = USBmakebmRequestType(kUSBIn, kUSBStandard, kUSBDevice); | |
1587 | request.request = kUSBRqGetDescriptor; | |
1588 | request.value = (kUSBDeviceDesc << 8) | 0; | |
1589 | request.index = 0; | |
1590 | request.length = sizeof(desc); | |
1591 | request.buffer = &desc; | |
1592 | err = (*classdriver)->DeviceRequest(classdriver, &request, DEFAULT_TIMEOUT); | |
1593 | if (err == kIOReturnSuccess) | |
1594 | { | |
1595 | CFMutableStringRef newDevID = CFStringCreateMutable(NULL, 0); | |
1596 | ||
1597 | if (deviceMake == NULL) | |
1598 | { | |
1599 | CFStringRef data = NULL; | |
1600 | err = (*classdriver)->GetString(classdriver, desc.iManufacturer, kUSBLanguageEnglish, DEFAULT_TIMEOUT, &data); | |
1601 | if (data != NULL) | |
1602 | { | |
1603 | CFStringAppendFormat(newDevID, NULL, CFSTR("MFG:%@;"), data); | |
1604 | CFRelease(data); | |
1605 | } | |
1606 | } | |
1607 | ||
1608 | if (deviceModel == NULL) | |
1609 | { | |
1610 | CFStringRef data = NULL; | |
1611 | err = (*classdriver)->GetString(classdriver, desc.iProduct, kUSBLanguageEnglish, DEFAULT_TIMEOUT, &data); | |
1612 | if (data != NULL) | |
1613 | { | |
1614 | CFStringAppendFormat(newDevID, NULL, CFSTR("MDL:%@;"), data); | |
1615 | CFRelease(data); | |
1616 | } | |
1617 | } | |
1618 | ||
1619 | if (deviceSerial == NULL && desc.iSerialNumber != 0) | |
1620 | { | |
1621 | CFStringRef data = NULL; | |
1622 | err = (*classdriver)->GetString(classdriver, desc.iSerialNumber, kUSBLanguageEnglish, DEFAULT_TIMEOUT, &data); | |
1623 | if (data != NULL) | |
1624 | { | |
1625 | CFStringAppendFormat(newDevID, NULL, CFSTR("SERN:%@;"), data); | |
1626 | CFRelease(data); | |
1627 | } | |
1628 | } | |
1629 | ||
1630 | if (devID != NULL) | |
1631 | { | |
1632 | CFStringAppend(newDevID, devID); | |
1633 | CFRelease(devID); | |
1634 | } | |
1635 | ||
1636 | *deviceID = newDevID; | |
1637 | } | |
1638 | } | |
1639 | else | |
1640 | { | |
1641 | *deviceID = devID; | |
1642 | } | |
1643 | release_deviceinfo(&deviceMake, &deviceModel, &deviceSerial); | |
1644 | ||
1645 | return err; | |
1646 | } | |
1647 | ||
1648 | ||
1649 | /* | |
1650 | * 'copy_devicestring()' - Copy the 1284 device id string. | |
1651 | */ | |
1652 | ||
1653 | static void copy_devicestring(io_service_t usbInterface, | |
1654 | CFStringRef *deviceID, | |
1655 | UInt32 *deviceLocation, | |
1656 | UInt8 *interfaceNumber ) | |
1657 | { | |
1658 | IOCFPlugInInterface **iodev = NULL; | |
1659 | SInt32 score; | |
1660 | kern_return_t kr; | |
1661 | printer_interface_t intf; | |
1662 | HRESULT res; | |
1663 | classdriver_t **klassDriver = NULL; | |
1664 | CFStringRef driverBundlePath; | |
1665 | ||
1666 | if ((kr = IOCreatePlugInInterfaceForService(usbInterface, | |
1667 | kIOUSBInterfaceUserClientTypeID, | |
1668 | kIOCFPlugInInterfaceID, | |
1669 | &iodev, &score)) == kIOReturnSuccess) | |
1670 | { | |
1671 | if ((res = (*iodev)->QueryInterface(iodev, USB_INTERFACE_KIND, (LPVOID *) | |
1672 | &intf)) == noErr) | |
1673 | { | |
1674 | (*intf)->GetLocationID(intf, deviceLocation); | |
1675 | (*intf)->GetInterfaceNumber(intf, interfaceNumber); | |
1676 | ||
1677 | driverBundlePath = IORegistryEntryCreateCFProperty(usbInterface, | |
1678 | kUSBClassDriverProperty, | |
1679 | NULL, kNilOptions); | |
1680 | ||
1681 | kr = load_classdriver(driverBundlePath, intf, &klassDriver); | |
1682 | ||
1683 | if (kr != kIOReturnSuccess && driverBundlePath != NULL) | |
1684 | kr = load_classdriver(NULL, intf, &klassDriver); | |
1685 | ||
1686 | if (kr == kIOReturnSuccess && klassDriver != NULL) | |
1687 | kr = copy_deviceid(klassDriver, deviceID); | |
1688 | ||
1689 | unload_classdriver(&klassDriver); | |
1690 | ||
1691 | if (driverBundlePath != NULL) | |
1692 | CFRelease(driverBundlePath); | |
1693 | ||
1694 | /* (*intf)->Release(intf); */ | |
1695 | } | |
1696 | IODestroyPlugInInterface(iodev); | |
1697 | } | |
1698 | } | |
1699 | ||
1700 | ||
1701 | #pragma mark - | |
1702 | /* | |
1703 | * 'copy_value_for_key()' - Copy value string associated with a key. | |
1704 | */ | |
1705 | ||
1706 | static CFStringRef copy_value_for_key(CFStringRef deviceID, | |
1707 | CFStringRef *keys) | |
1708 | { | |
1709 | CFStringRef value = NULL; | |
1710 | CFArrayRef kvPairs = deviceID != NULL ? CFStringCreateArrayBySeparatingStrings(NULL, deviceID, CFSTR(";")) : NULL; | |
1711 | CFIndex max = kvPairs != NULL ? CFArrayGetCount(kvPairs) : 0; | |
1712 | CFIndex idx = 0; | |
1713 | ||
1714 | while (idx < max && value == NULL) | |
1715 | { | |
1716 | CFStringRef kvpair = CFArrayGetValueAtIndex(kvPairs, idx); | |
1717 | CFIndex idxx = 0; | |
1718 | while (keys[idxx] != NULL && value == NULL) | |
1719 | { | |
1720 | CFRange range = CFStringFind(kvpair, keys[idxx], kCFCompareCaseInsensitive); | |
1721 | if (range.length != -1) | |
1722 | { | |
1723 | if (range.location != 0) | |
1724 | { | |
1725 | CFMutableStringRef theString = CFStringCreateMutableCopy(NULL, 0, kvpair); | |
1726 | CFStringTrimWhitespace(theString); | |
1727 | range = CFStringFind(theString, keys[idxx], kCFCompareCaseInsensitive); | |
1728 | if (range.location == 0) | |
1729 | value = CFStringCreateWithSubstring(NULL, theString, CFRangeMake(range.length, CFStringGetLength(theString) - range.length)); | |
1730 | ||
1731 | CFRelease(theString); | |
1732 | } | |
1733 | else | |
1734 | { | |
1735 | CFStringRef theString = CFStringCreateWithSubstring(NULL, kvpair, CFRangeMake(range.length, CFStringGetLength(kvpair) - range.length)); | |
1736 | CFMutableStringRef theString2 = CFStringCreateMutableCopy(NULL, 0, theString); | |
1737 | CFRelease(theString); | |
1738 | ||
1739 | CFStringTrimWhitespace(theString2); | |
1740 | value = theString2; | |
1741 | } | |
1742 | } | |
1743 | idxx++; | |
1744 | } | |
1745 | idx++; | |
1746 | } | |
1747 | ||
1748 | if (kvPairs != NULL) | |
1749 | CFRelease(kvPairs); | |
1750 | return value; | |
1751 | } | |
1752 | ||
1753 | ||
1754 | /* | |
1755 | * 'cfstr_create_trim()' - Create CFString and trim whitespace characters. | |
1756 | */ | |
1757 | ||
1758 | CFStringRef cfstr_create_trim(const char *cstr) | |
1759 | { | |
1760 | CFStringRef cfstr; | |
1761 | CFMutableStringRef cfmutablestr = NULL; | |
1762 | ||
1763 | if ((cfstr = CFStringCreateWithCString(NULL, cstr, kCFStringEncodingUTF8)) != NULL) | |
1764 | { | |
1765 | if ((cfmutablestr = CFStringCreateMutableCopy(NULL, 1024, cfstr)) != NULL) | |
1766 | CFStringTrimWhitespace(cfmutablestr); | |
1767 | ||
1768 | CFRelease(cfstr); | |
1769 | } | |
1770 | return (CFStringRef) cfmutablestr; | |
1771 | } | |
1772 | ||
1773 | ||
1774 | #pragma mark - | |
1775 | /* | |
1776 | * 'parse_options()' - Parse URI options. | |
1777 | */ | |
1778 | ||
1779 | static void parse_options(char *options, | |
1780 | char *serial, | |
1781 | int serial_size, | |
1782 | UInt32 *location, | |
1783 | Boolean *wait_eof) | |
1784 | { | |
1785 | char sep, /* Separator character */ | |
1786 | *name, /* Name of option */ | |
1787 | *value; /* Value of option */ | |
1788 | ||
1789 | ||
1790 | if (serial) | |
1791 | *serial = '\0'; | |
1792 | if (location) | |
1793 | *location = 0; | |
1794 | ||
1795 | if (!options) | |
1796 | return; | |
1797 | ||
1798 | while (*options) | |
1799 | { | |
1800 | /* | |
1801 | * Get the name... | |
1802 | */ | |
1803 | ||
1804 | name = options; | |
1805 | ||
1806 | while (*options && *options != '=' && *options != '+' && *options != '&') | |
1807 | options ++; | |
1808 | ||
1809 | if ((sep = *options) != '\0') | |
1810 | *options++ = '\0'; | |
1811 | ||
1812 | if (sep == '=') | |
1813 | { | |
1814 | /* | |
1815 | * Get the value... | |
1816 | */ | |
1817 | ||
1818 | value = options; | |
1819 | ||
1820 | while (*options && *options != '+' && *options != '&') | |
1821 | options ++; | |
1822 | ||
1823 | if (*options) | |
1824 | *options++ = '\0'; | |
1825 | } | |
1826 | else | |
1827 | value = (char *)""; | |
1828 | ||
1829 | /* | |
1830 | * Process the option... | |
1831 | */ | |
1832 | ||
1833 | if (!strcasecmp(name, "waiteof")) | |
1834 | { | |
1835 | if (!strcasecmp(value, "on") || | |
1836 | !strcasecmp(value, "yes") || | |
1837 | !strcasecmp(value, "true")) | |
1838 | *wait_eof = true; | |
1839 | else if (!strcasecmp(value, "off") || | |
1840 | !strcasecmp(value, "no") || | |
1841 | !strcasecmp(value, "false")) | |
1842 | *wait_eof = false; | |
1843 | else | |
1844 | _cupsLangPrintf(stderr, | |
1845 | _("WARNING: Boolean expected for waiteof option " | |
1846 | "\"%s\"\n"), value); | |
1847 | } | |
1848 | else if (!strcasecmp(name, "serial")) | |
1849 | strlcpy(serial, value, serial_size); | |
1850 | else if (!strcasecmp(name, "location") && location) | |
1851 | *location = strtol(value, NULL, 16); | |
1852 | } | |
1853 | } | |
1854 | ||
1855 | ||
1856 | /*! | |
1857 | * @function setup_cfLanguage | |
1858 | * @abstract Convert the contents of the CUPS 'APPLE_LANGUAGE' environment | |
1859 | * variable into a one element CF array of languages. | |
1860 | * | |
1861 | * @discussion Each submitted job comes with a natural language. CUPS passes | |
1862 | * that language in an environment variable. We take that language | |
1863 | * and jam it into the AppleLanguages array so that CF will use | |
1864 | * it when reading localized resources. We need to do this before | |
1865 | * any CF code reads and caches the languages array, so this function | |
1866 | * should be called early in main() | |
1867 | */ | |
1868 | static void setup_cfLanguage(void) | |
1869 | { | |
1870 | CFStringRef lang[1] = {NULL}; | |
1871 | CFArrayRef langArray = NULL; | |
1872 | const char *requestedLang = NULL; | |
1873 | ||
1874 | if ((requestedLang = getenv("APPLE_LANGUAGE")) == NULL) | |
1875 | requestedLang = getenv("LANG"); | |
1876 | ||
1877 | if (requestedLang != NULL) | |
1878 | { | |
1879 | lang[0] = CFStringCreateWithCString(kCFAllocatorDefault, requestedLang, kCFStringEncodingUTF8); | |
1880 | langArray = CFArrayCreate(kCFAllocatorDefault, (const void **)lang, sizeof(lang) / sizeof(lang[0]), &kCFTypeArrayCallBacks); | |
1881 | ||
1882 | CFPreferencesSetValue(CFSTR("AppleLanguages"), langArray, kCFPreferencesCurrentApplication, kCFPreferencesAnyUser, kCFPreferencesAnyHost); | |
1883 | fprintf(stderr, "DEBUG: usb: AppleLanguages=\"%s\"\n", requestedLang); | |
1884 | ||
1885 | CFRelease(lang[0]); | |
1886 | CFRelease(langArray); | |
1887 | } | |
1888 | else | |
1889 | fputs("DEBUG: usb: LANG and APPLE_LANGUAGE environment variables missing.\n", stderr); | |
1890 | } | |
1891 | ||
1892 | #pragma mark - | |
1893 | #if defined(__i386__) || defined(__x86_64__) | |
1894 | /*! | |
1895 | * @function run_legacy_backend | |
1896 | * | |
1897 | * @abstract Starts child backend process running as a ppc or i386 executable. | |
1898 | * | |
1899 | * @result Never returns; always calls exit(). | |
1900 | * | |
1901 | * @discussion | |
1902 | */ | |
1903 | static void run_legacy_backend(int argc, | |
1904 | char *argv[], | |
1905 | int fd) | |
1906 | { | |
1907 | int i; | |
1908 | int exitstatus = 0; | |
1909 | int childstatus; | |
1910 | pid_t waitpid_status; | |
1911 | char *my_argv[32]; | |
1912 | char *usb_legacy_status; | |
1913 | ||
1914 | /* | |
1915 | * If we're running as x86_64 or i386 and couldn't load the class driver | |
1916 | * (because it's ppc or i386), then try to re-exec ourselves in ppc or i386 | |
1917 | * mode to try again. If we don't have a ppc or i386 architecture we may be | |
1918 | * running with the same architecture again so guard against this by setting | |
1919 | * and testing an environment variable... | |
1920 | */ | |
1921 | ||
1922 | # ifdef __x86_64__ | |
1923 | usb_legacy_status = getenv("USB_I386_STATUS"); | |
1924 | # else | |
1925 | usb_legacy_status = getenv("USB_PPC_STATUS"); | |
1926 | # endif /* __x86_64__ */ | |
1927 | ||
1928 | if (!usb_legacy_status) | |
1929 | { | |
1930 | /* | |
1931 | * Setup a SIGTERM handler then block it before forking... | |
1932 | */ | |
1933 | ||
1934 | int err; /* posix_spawn result */ | |
1935 | struct sigaction action; /* POSIX signal action */ | |
1936 | sigset_t newmask, /* New signal mask */ | |
1937 | oldmask; /* Old signal mask */ | |
1938 | char usbpath[1024]; /* Path to USB backend */ | |
1939 | const char *cups_serverbin;/* Path to CUPS binaries */ | |
1940 | ||
1941 | ||
1942 | memset(&action, 0, sizeof(action)); | |
1943 | sigaddset(&action.sa_mask, SIGTERM); | |
1944 | action.sa_handler = sigterm_handler; | |
1945 | sigaction(SIGTERM, &action, NULL); | |
1946 | ||
1947 | sigemptyset(&newmask); | |
1948 | sigaddset(&newmask, SIGTERM); | |
1949 | sigprocmask(SIG_BLOCK, &newmask, &oldmask); | |
1950 | ||
1951 | /* | |
1952 | * Set the environment variable... | |
1953 | */ | |
1954 | ||
1955 | # ifdef __x86_64__ | |
1956 | setenv("USB_I386_STATUS", "1", false); | |
1957 | # else | |
1958 | setenv("USB_PPC_STATUS", "1", false); | |
1959 | # endif /* __x86_64__ */ | |
1960 | ||
1961 | /* | |
1962 | * Tell the kernel to use the specified CPU architecture... | |
1963 | */ | |
1964 | ||
1965 | # ifdef __x86_64__ | |
1966 | cpu_type_t cpu = CPU_TYPE_I386; | |
1967 | # else | |
1968 | cpu_type_t cpu = CPU_TYPE_POWERPC; | |
1969 | # endif /* __x86_64__ */ | |
1970 | size_t ocount = 1; | |
1971 | posix_spawnattr_t attrs; | |
1972 | ||
1973 | if (!posix_spawnattr_init(&attrs)) | |
1974 | { | |
1975 | posix_spawnattr_setsigdefault(&attrs, &oldmask); | |
1976 | if (posix_spawnattr_setbinpref_np(&attrs, 1, &cpu, &ocount) || ocount != 1) | |
1977 | { | |
1978 | # ifdef __x86_64__ | |
1979 | perror("DEBUG: Unable to set binary preference to i386"); | |
1980 | # else | |
1981 | perror("DEBUG: Unable to set binary preference to ppc"); | |
1982 | # endif /* __x86_64__ */ | |
1983 | _cupsLangPrintf(stderr, _("Unable to use legacy USB class driver\n")); | |
1984 | exit(CUPS_BACKEND_STOP); | |
1985 | } | |
1986 | } | |
1987 | ||
1988 | /* | |
1989 | * Set up the arguments and call posix_spawn... | |
1990 | */ | |
1991 | ||
1992 | if ((cups_serverbin = getenv("CUPS_SERVERBIN")) == NULL) | |
1993 | cups_serverbin = CUPS_SERVERBIN; | |
1994 | snprintf(usbpath, sizeof(usbpath), "%s/backend/usb", cups_serverbin); | |
1995 | ||
1996 | for (i = 0; i < argc && i < (sizeof(my_argv) / sizeof(my_argv[0])) - 1; i ++) | |
1997 | my_argv[i] = argv[i]; | |
1998 | ||
1999 | my_argv[i] = NULL; | |
2000 | ||
2001 | if ((err = posix_spawn(&child_pid, usbpath, NULL, &attrs, my_argv, | |
2002 | environ)) != 0) | |
2003 | { | |
2004 | fprintf(stderr, "DEBUG: Unable to exec %s: %s\n", usbpath, | |
2005 | strerror(err)); | |
2006 | _cupsLangPrintf(stderr, _("Unable to use legacy USB class driver\n")); | |
2007 | exit(CUPS_BACKEND_STOP); | |
2008 | } | |
2009 | ||
2010 | /* | |
2011 | * Unblock signals... | |
2012 | */ | |
2013 | ||
2014 | sigprocmask(SIG_SETMASK, &oldmask, NULL); | |
2015 | ||
2016 | /* | |
2017 | * Close the fds we won't be using then wait for the child backend to exit. | |
2018 | */ | |
2019 | ||
2020 | close(fd); | |
2021 | close(1); | |
2022 | ||
2023 | fprintf(stderr, "DEBUG: Started usb(legacy) backend (PID %d)\n", | |
2024 | (int)child_pid); | |
2025 | ||
2026 | while ((waitpid_status = waitpid(child_pid, &childstatus, 0)) == (pid_t)-1 && errno == EINTR) | |
2027 | usleep(1000); | |
2028 | ||
2029 | if (WIFSIGNALED(childstatus)) | |
2030 | { | |
2031 | exitstatus = CUPS_BACKEND_STOP; | |
2032 | fprintf(stderr, "DEBUG: usb(legacy) backend %d crashed on signal %d\n", | |
2033 | child_pid, WTERMSIG(childstatus)); | |
2034 | } | |
2035 | else | |
2036 | { | |
2037 | if ((exitstatus = WEXITSTATUS(childstatus)) != 0) | |
2038 | fprintf(stderr, | |
2039 | "DEBUG: usb(legacy) backend %d stopped with status %d\n", | |
2040 | child_pid, exitstatus); | |
2041 | else | |
2042 | fprintf(stderr, "DEBUG: usb(legacy) backend %d exited with no errors\n", | |
2043 | child_pid); | |
2044 | } | |
2045 | } | |
2046 | else | |
2047 | { | |
2048 | fputs("DEBUG: usb(legacy) backend running native again\n", stderr); | |
2049 | exitstatus = CUPS_BACKEND_STOP; | |
2050 | } | |
2051 | ||
2052 | exit(exitstatus); | |
2053 | } | |
2054 | ||
2055 | /* | |
2056 | * 'sigterm_handler()' - SIGTERM handler. | |
2057 | */ | |
2058 | ||
2059 | static void | |
2060 | sigterm_handler(int sig) /* I - Signal */ | |
2061 | { | |
2062 | /* If we started a child process pass the signal on to it... | |
2063 | */ | |
2064 | if (child_pid) | |
2065 | { | |
2066 | /* | |
2067 | * If we started a child process pass the signal on to it... | |
2068 | */ | |
2069 | ||
2070 | int status; | |
2071 | ||
2072 | kill(child_pid, sig); | |
2073 | while (waitpid(child_pid, &status, 0) < 0 && errno == EINTR); | |
2074 | ||
2075 | if (WIFEXITED(status)) | |
2076 | exit(WEXITSTATUS(status)); | |
2077 | else if (status == SIGTERM || status == SIGKILL) | |
2078 | exit(0); | |
2079 | else | |
2080 | { | |
2081 | fprintf(stderr, "DEBUG: Child crashed on signal %d\n", status); | |
2082 | exit(CUPS_BACKEND_STOP); | |
2083 | } | |
2084 | } | |
2085 | } | |
2086 | ||
2087 | #endif /* __i386__ || __x86_64__ */ | |
2088 | ||
2089 | ||
2090 | #ifdef PARSE_PS_ERRORS | |
2091 | /* | |
2092 | * 'next_line()' - Find the next line in a buffer. | |
2093 | */ | |
2094 | ||
2095 | static const char *next_line (const char *buffer) | |
2096 | { | |
2097 | const char *cptr, *lptr = NULL; | |
2098 | ||
2099 | for (cptr = buffer; *cptr && lptr == NULL; cptr++) | |
2100 | if (*cptr == '\n' || *cptr == '\r') | |
2101 | lptr = cptr; | |
2102 | return lptr; | |
2103 | } | |
2104 | ||
2105 | ||
2106 | /* | |
2107 | * 'parse_pserror()' - Scan the backchannel data for postscript errors. | |
2108 | */ | |
2109 | ||
2110 | static void parse_pserror(char *sockBuffer, | |
2111 | int len) | |
2112 | { | |
2113 | static char gErrorBuffer[1024] = ""; | |
2114 | static char *gErrorBufferPtr = gErrorBuffer; | |
2115 | static char *gErrorBufferEndPtr = gErrorBuffer + sizeof(gErrorBuffer); | |
2116 | ||
2117 | char *pCommentBegin, *pCommentEnd, *pLineEnd; | |
2118 | char *logLevel; | |
2119 | char logstr[1024]; | |
2120 | int logstrlen; | |
2121 | ||
2122 | if (gErrorBufferPtr + len > gErrorBufferEndPtr - 1) | |
2123 | gErrorBufferPtr = gErrorBuffer; | |
2124 | if (len > sizeof(gErrorBuffer) - 1) | |
2125 | len = sizeof(gErrorBuffer) - 1; | |
2126 | ||
2127 | memcpy(gErrorBufferPtr, (const void *)sockBuffer, len); | |
2128 | gErrorBufferPtr += len; | |
2129 | *(gErrorBufferPtr + 1) = '\0'; | |
2130 | ||
2131 | pLineEnd = (char *)next_line((const char *)gErrorBuffer); | |
2132 | while (pLineEnd != NULL) | |
2133 | { | |
2134 | *pLineEnd++ = '\0'; | |
2135 | ||
2136 | pCommentBegin = strstr(gErrorBuffer,"%%["); | |
2137 | pCommentEnd = strstr(gErrorBuffer, "]%%"); | |
2138 | if (pCommentBegin != gErrorBuffer && pCommentEnd != NULL) | |
2139 | { | |
2140 | pCommentEnd += 3; /* Skip past "]%%" */ | |
2141 | *pCommentEnd = '\0'; /* There's always room for the nul */ | |
2142 | ||
2143 | if (strncasecmp(pCommentBegin, "%%[ Error:", 10) == 0) | |
2144 | logLevel = "DEBUG"; | |
2145 | else if (strncasecmp(pCommentBegin, "%%[ Flushing", 12) == 0) | |
2146 | logLevel = "DEBUG"; | |
2147 | else | |
2148 | logLevel = "INFO"; | |
2149 | ||
2150 | if ((logstrlen = snprintf(logstr, sizeof(logstr), "%s: %s\n", logLevel, pCommentBegin)) >= sizeof(logstr)) | |
2151 | { | |
2152 | /* If the string was trucnated make sure it has a linefeed before the nul */ | |
2153 | logstrlen = sizeof(logstr) - 1; | |
2154 | logstr[logstrlen - 1] = '\n'; | |
2155 | } | |
2156 | write(STDERR_FILENO, logstr, logstrlen); | |
2157 | } | |
2158 | ||
2159 | /* move everything over... */ | |
2160 | strcpy(gErrorBuffer, pLineEnd); | |
2161 | gErrorBufferPtr = gErrorBuffer; | |
2162 | pLineEnd = (char *)next_line((const char *)gErrorBuffer); | |
2163 | } | |
2164 | } | |
2165 | #endif /* PARSE_PS_ERRORS */ | |
2166 | ||
2167 | ||
2168 | /* | |
2169 | * 'soft_reset()' - Send a soft reset to the device. | |
2170 | */ | |
2171 | ||
2172 | static void soft_reset() | |
2173 | { | |
2174 | fd_set input_set; /* Input set for select() */ | |
2175 | struct timeval stimeout; /* Timeout for select() */ | |
2176 | char buffer[2048]; /* Buffer */ | |
2177 | struct timespec cond_timeout; /* pthread condition timeout */ | |
2178 | ||
2179 | /* | |
2180 | * Send an abort once a second until the I/O lock is released by the main thread... | |
2181 | */ | |
2182 | ||
2183 | pthread_mutex_lock(&g.readwrite_lock_mutex); | |
2184 | while (g.readwrite_lock) | |
2185 | { | |
2186 | (*g.classdriver)->Abort(g.classdriver); | |
2187 | ||
2188 | cond_timeout.tv_sec = time(NULL) + 1; | |
2189 | cond_timeout.tv_nsec = 0; | |
2190 | ||
2191 | pthread_cond_timedwait(&g.readwrite_lock_cond, &g.readwrite_lock_mutex, &cond_timeout); | |
2192 | } | |
2193 | ||
2194 | g.readwrite_lock = 1; | |
2195 | pthread_mutex_unlock(&g.readwrite_lock_mutex); | |
2196 | ||
2197 | /* | |
2198 | * Flush bytes waiting on print_fd... | |
2199 | */ | |
2200 | ||
2201 | g.print_bytes = 0; | |
2202 | ||
2203 | FD_ZERO(&input_set); | |
2204 | FD_SET(g.print_fd, &input_set); | |
2205 | ||
2206 | stimeout.tv_sec = 0; | |
2207 | stimeout.tv_usec = 0; | |
2208 | ||
2209 | while (select(g.print_fd+1, &input_set, NULL, NULL, &stimeout) > 0) | |
2210 | if (read(g.print_fd, buffer, sizeof(buffer)) <= 0) | |
2211 | break; | |
2212 | ||
2213 | /* | |
2214 | * Send the reset... | |
2215 | */ | |
2216 | ||
2217 | (*g.classdriver)->SoftReset(g.classdriver, DEFAULT_TIMEOUT); | |
2218 | ||
2219 | /* | |
2220 | * Release the I/O lock... | |
2221 | */ | |
2222 | ||
2223 | pthread_mutex_lock(&g.readwrite_lock_mutex); | |
2224 | g.readwrite_lock = 0; | |
2225 | pthread_cond_signal(&g.readwrite_lock_cond); | |
2226 | pthread_mutex_unlock(&g.readwrite_lock_mutex); | |
2227 | } | |
2228 | ||
2229 | ||
2230 | /* | |
2231 | * 'get_device_id()' - Return IEEE-1284 device ID. | |
2232 | */ | |
2233 | ||
2234 | static void get_device_id(cups_sc_status_t *status, | |
2235 | char *data, | |
2236 | int *datalen) | |
2237 | { | |
2238 | CFStringRef deviceIDString = NULL; | |
2239 | ||
2240 | /* GetDeviceID */ | |
2241 | copy_deviceid(g.classdriver, &deviceIDString); | |
2242 | ||
2243 | if (deviceIDString) | |
2244 | { | |
2245 | CFStringGetCString(deviceIDString, data, *datalen, kCFStringEncodingUTF8); | |
2246 | *datalen = strlen(data); | |
2247 | CFRelease(deviceIDString); | |
2248 | } | |
2249 | *status = CUPS_SC_STATUS_OK; | |
2250 | } | |
2251 | ||
2252 | ||
2253 | /* | |
2254 | * End of "$Id: usb-darwin.c 7953 2008-09-17 01:43:19Z mike $". | |
2255 | */ |