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ef416fc2 | 1 | /* |
26d47ec6 | 2 | * "$Id: lpc.c 6073 2006-11-02 20:01:54Z mike $" |
ef416fc2 | 3 | * |
4 | * "lpc" command for the Common UNIX Printing System (CUPS). | |
5 | * | |
6 | * Copyright 1997-2006 by Easy Software Products. | |
7 | * | |
8 | * These coded instructions, statements, and computer programs are the | |
9 | * property of Easy Software Products and are protected by Federal | |
10 | * copyright law. Distribution and use rights are outlined in the file | |
11 | * "LICENSE.txt" which should have been included with this file. If this | |
12 | * file is missing or damaged please contact Easy Software Products | |
13 | * at: | |
14 | * | |
15 | * Attn: CUPS Licensing Information | |
16 | * Easy Software Products | |
17 | * 44141 Airport View Drive, Suite 204 | |
18 | * Hollywood, Maryland 20636 USA | |
19 | * | |
20 | * Voice: (301) 373-9600 | |
21 | * EMail: cups-info@cups.org | |
22 | * WWW: http://www.cups.org | |
23 | * | |
24 | * Contents: | |
25 | * | |
26 | * main() - Parse options and commands. | |
27 | * compare_strings() - Compare two command-line strings. | |
28 | * do_command() - Do an lpc command... | |
29 | * show_help() - Show help messages. | |
30 | * show_status() - Show printers. | |
31 | */ | |
32 | ||
33 | /* | |
34 | * Include necessary headers... | |
35 | */ | |
36 | ||
37 | #include <stdio.h> | |
38 | #include <stdlib.h> | |
39 | #include <cups/cups.h> | |
40 | #include <cups/i18n.h> | |
41 | #include <cups/debug.h> | |
42 | #include <cups/string.h> | |
43 | ||
44 | ||
45 | /* | |
46 | * Local functions... | |
47 | */ | |
48 | ||
49 | static int compare_strings(const char *, const char *, int); | |
50 | static void do_command(http_t *, const char *, const char *); | |
51 | static void show_help(const char *); | |
52 | static void show_status(http_t *, const char *); | |
53 | ||
54 | ||
55 | /* | |
56 | * 'main()' - Parse options and commands. | |
57 | */ | |
58 | ||
59 | int | |
60 | main(int argc, /* I - Number of command-line arguments */ | |
61 | char *argv[]) /* I - Command-line arguments */ | |
62 | { | |
63 | http_t *http; /* Connection to server */ | |
64 | char line[1024], /* Input line from user */ | |
65 | *params; /* Pointer to parameters */ | |
66 | ||
67 | ||
07725fee | 68 | _cupsSetLocale(argv); |
d09495fa | 69 | |
ef416fc2 | 70 | /* |
71 | * Connect to the scheduler... | |
72 | */ | |
73 | ||
74 | http = httpConnectEncrypt(cupsServer(), ippPort(), cupsEncryption()); | |
75 | ||
76 | if (argc > 1) | |
77 | { | |
78 | /* | |
79 | * Process a single command on the command-line... | |
80 | */ | |
81 | ||
82 | do_command(http, argv[1], argv[2]); | |
83 | } | |
84 | else | |
85 | { | |
86 | /* | |
87 | * Do the command prompt thing... | |
88 | */ | |
89 | ||
fa73b229 | 90 | _cupsLangPuts(stdout, _("lpc> ")); |
ef416fc2 | 91 | while (fgets(line, sizeof(line), stdin) != NULL) |
92 | { | |
93 | /* | |
94 | * Strip trailing whitespace... | |
95 | */ | |
96 | ||
97 | for (params = line + strlen(line) - 1; params >= line;) | |
98 | if (!isspace(*params & 255)) | |
99 | break; | |
100 | else | |
101 | *params-- = '\0'; | |
102 | ||
103 | /* | |
104 | * Strip leading whitespace... | |
105 | */ | |
106 | ||
107 | for (params = line; isspace(*params & 255); params ++); | |
108 | ||
109 | if (params > line) | |
110 | _cups_strcpy(line, params); | |
111 | ||
112 | if (!line[0]) | |
113 | { | |
114 | /* | |
115 | * Nothing left, just show a prompt... | |
116 | */ | |
117 | ||
fa73b229 | 118 | _cupsLangPuts(stdout, _("lpc> ")); |
ef416fc2 | 119 | continue; |
120 | } | |
121 | ||
122 | /* | |
123 | * Find any options in the string... | |
124 | */ | |
125 | ||
126 | for (params = line; *params != '\0'; params ++) | |
127 | if (isspace(*params & 255)) | |
128 | break; | |
129 | ||
130 | /* | |
131 | * Remove whitespace between the command and parameters... | |
132 | */ | |
133 | ||
134 | while (isspace(*params & 255)) | |
135 | *params++ = '\0'; | |
136 | ||
137 | /* | |
138 | * The "quit" and "exit" commands exit; otherwise, process as needed... | |
139 | */ | |
140 | ||
141 | if (!compare_strings(line, "quit", 1) || | |
142 | !compare_strings(line, "exit", 2)) | |
143 | break; | |
144 | ||
145 | if (*params == '\0') | |
146 | do_command(http, line, NULL); | |
147 | else | |
148 | do_command(http, line, params); | |
149 | ||
150 | /* | |
151 | * Put another prompt out to the user... | |
152 | */ | |
153 | ||
fa73b229 | 154 | _cupsLangPuts(stdout, _("lpc> ")); |
ef416fc2 | 155 | } |
156 | } | |
157 | ||
158 | /* | |
159 | * Close the connection to the server and return... | |
160 | */ | |
161 | ||
162 | httpClose(http); | |
163 | ||
164 | return (0); | |
165 | } | |
166 | ||
167 | ||
168 | /* | |
169 | * 'compare_strings()' - Compare two command-line strings. | |
170 | */ | |
171 | ||
172 | static int /* O - -1 or 1 = no match, 0 = match */ | |
173 | compare_strings(const char *s, /* I - Command-line string */ | |
174 | const char *t, /* I - Option string */ | |
175 | int tmin) /* I - Minimum number of unique chars in option */ | |
176 | { | |
177 | int slen; /* Length of command-line string */ | |
178 | ||
179 | ||
180 | slen = strlen(s); | |
181 | if (slen < tmin) | |
182 | return (-1); | |
183 | else | |
184 | return (strncmp(s, t, slen)); | |
185 | } | |
186 | ||
187 | ||
188 | /* | |
189 | * 'do_command()' - Do an lpc command... | |
190 | */ | |
191 | ||
192 | static void | |
193 | do_command(http_t *http, /* I - HTTP connection to server */ | |
194 | const char *command, /* I - Command string */ | |
195 | const char *params) /* I - Parameters for command */ | |
196 | { | |
197 | if (!compare_strings(command, "status", 4)) | |
198 | show_status(http, params); | |
199 | else if (!compare_strings(command, "help", 1) || !strcmp(command, "?")) | |
200 | show_help(params); | |
201 | else | |
fa73b229 | 202 | _cupsLangPrintf(stdout, |
ef416fc2 | 203 | _("%s is not implemented by the CUPS version of lpc.\n"), |
204 | command); | |
205 | } | |
206 | ||
207 | ||
208 | /* | |
209 | * 'show_help()' - Show help messages. | |
210 | */ | |
211 | ||
212 | static void | |
213 | show_help(const char *command) /* I - Command to describe or NULL */ | |
214 | { | |
215 | if (!command) | |
216 | { | |
fa73b229 | 217 | _cupsLangPrintf(stdout, |
ef416fc2 | 218 | _("Commands may be abbreviated. Commands are:\n" |
219 | "\n" | |
220 | "exit help quit status ?\n")); | |
221 | } | |
222 | else if (!compare_strings(command, "help", 1) || !strcmp(command, "?")) | |
fa73b229 | 223 | _cupsLangPrintf(stdout, _("help\t\tget help on commands\n")); |
ef416fc2 | 224 | else if (!compare_strings(command, "status", 4)) |
fa73b229 | 225 | _cupsLangPrintf(stdout, _("status\t\tshow status of daemon and queue\n")); |
ef416fc2 | 226 | else |
fa73b229 | 227 | _cupsLangPrintf(stdout, _("?Invalid help command unknown\n")); |
ef416fc2 | 228 | } |
229 | ||
230 | ||
231 | /* | |
232 | * 'show_status()' - Show printers. | |
233 | */ | |
234 | ||
235 | static void | |
236 | show_status(http_t *http, /* I - HTTP connection to server */ | |
237 | const char *dests) /* I - Destinations */ | |
238 | { | |
239 | ipp_t *request, /* IPP Request */ | |
26d47ec6 | 240 | *response; /* IPP Response */ |
241 | ipp_attribute_t *attr; /* Current attribute */ | |
ef416fc2 | 242 | cups_lang_t *language; /* Default language */ |
243 | char *printer, /* Printer name */ | |
244 | *device, /* Device URI */ | |
245 | *delimiter; /* Char search result */ | |
246 | ipp_pstate_t pstate; /* Printer state */ | |
247 | int accepting; /* Is printer accepting jobs? */ | |
248 | int jobcount; /* Count of current jobs */ | |
249 | const char *dptr, /* Pointer into destination list */ | |
250 | *ptr; /* Pointer into printer name */ | |
251 | int match; /* Non-zero if this job matches */ | |
ef416fc2 | 252 | static const char *requested[] = /* Requested attributes */ |
253 | { | |
ef416fc2 | 254 | "device-uri", |
26d47ec6 | 255 | "printer-is-accepting-jobs", |
256 | "printer-name", | |
ef416fc2 | 257 | "printer-state", |
26d47ec6 | 258 | "queued-job-count" |
ef416fc2 | 259 | }; |
260 | ||
261 | ||
262 | DEBUG_printf(("show_status(http=%p, dests=\"%s\")\n", http, dests)); | |
263 | ||
264 | if (http == NULL) | |
265 | return; | |
266 | ||
267 | /* | |
268 | * Build a CUPS_GET_PRINTERS request, which requires the following | |
269 | * attributes: | |
270 | * | |
271 | * attributes-charset | |
272 | * attributes-natural-language | |
273 | */ | |
274 | ||
275 | request = ippNew(); | |
276 | ||
277 | request->request.op.operation_id = CUPS_GET_PRINTERS; | |
278 | request->request.op.request_id = 1; | |
279 | ||
280 | language = cupsLangDefault(); | |
281 | ||
282 | ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET, | |
283 | "attributes-charset", NULL, cupsLangEncoding(language)); | |
284 | ||
285 | ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE, | |
286 | "attributes-natural-language", NULL, language->language); | |
287 | ||
288 | ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD, | |
289 | "requested-attributes", sizeof(requested) / sizeof(requested[0]), | |
290 | NULL, requested); | |
291 | ||
292 | /* | |
293 | * Do the request and get back a response... | |
294 | */ | |
295 | ||
296 | if ((response = cupsDoRequest(http, request, "/")) != NULL) | |
297 | { | |
298 | DEBUG_puts("show_status: request succeeded..."); | |
299 | ||
300 | /* | |
301 | * Loop through the printers returned in the list and display | |
302 | * their status... | |
303 | */ | |
304 | ||
305 | for (attr = response->attrs; attr != NULL; attr = attr->next) | |
306 | { | |
307 | /* | |
308 | * Skip leading attributes until we hit a job... | |
309 | */ | |
310 | ||
311 | while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER) | |
312 | attr = attr->next; | |
313 | ||
314 | if (attr == NULL) | |
315 | break; | |
316 | ||
317 | /* | |
318 | * Pull the needed attributes from this job... | |
319 | */ | |
320 | ||
321 | printer = NULL; | |
322 | device = "file:/dev/null"; | |
323 | pstate = IPP_PRINTER_IDLE; | |
324 | jobcount = 0; | |
325 | accepting = 1; | |
326 | ||
327 | while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) | |
328 | { | |
ef416fc2 | 329 | if (!strcmp(attr->name, "device-uri") && |
330 | attr->value_tag == IPP_TAG_URI) | |
331 | device = attr->values[0].string.text; | |
26d47ec6 | 332 | else if (!strcmp(attr->name, "printer-is-accepting-jobs") && |
333 | attr->value_tag == IPP_TAG_BOOLEAN) | |
ef416fc2 | 334 | accepting = attr->values[0].boolean; |
26d47ec6 | 335 | else if (!strcmp(attr->name, "printer-name") && |
336 | attr->value_tag == IPP_TAG_NAME) | |
337 | printer = attr->values[0].string.text; | |
338 | else if (!strcmp(attr->name, "printer-state") && | |
339 | attr->value_tag == IPP_TAG_ENUM) | |
340 | pstate = (ipp_pstate_t)attr->values[0].integer; | |
341 | else if (!strcmp(attr->name, "queued-job-count") && | |
342 | attr->value_tag == IPP_TAG_INTEGER) | |
343 | jobcount = attr->values[0].integer; | |
ef416fc2 | 344 | |
345 | attr = attr->next; | |
346 | } | |
347 | ||
348 | /* | |
349 | * See if we have everything needed... | |
350 | */ | |
351 | ||
352 | if (printer == NULL) | |
353 | { | |
354 | if (attr == NULL) | |
355 | break; | |
356 | else | |
357 | continue; | |
358 | } | |
359 | ||
360 | /* | |
361 | * A single 'all' printer name is special, meaning all printers. | |
362 | */ | |
363 | ||
364 | if (dests != NULL && !strcmp(dests, "all")) | |
365 | dests = NULL; | |
366 | ||
367 | /* | |
368 | * See if this is a printer we're interested in... | |
369 | */ | |
370 | ||
371 | match = dests == NULL; | |
372 | ||
373 | if (dests != NULL) | |
374 | { | |
375 | for (dptr = dests; *dptr != '\0';) | |
376 | { | |
377 | /* | |
378 | * Skip leading whitespace and commas... | |
379 | */ | |
380 | ||
381 | while (isspace(*dptr & 255) || *dptr == ',') | |
382 | dptr ++; | |
383 | ||
384 | if (*dptr == '\0') | |
385 | break; | |
386 | ||
387 | /* | |
388 | * Compare names... | |
389 | */ | |
390 | ||
391 | for (ptr = printer; | |
392 | *ptr != '\0' && *dptr != '\0' && *ptr == *dptr; | |
393 | ptr ++, dptr ++); | |
394 | ||
26d47ec6 | 395 | if (*ptr == '\0' && (*dptr == '\0' || *dptr == ',' || |
396 | isspace(*dptr & 255))) | |
ef416fc2 | 397 | { |
398 | match = 1; | |
399 | break; | |
400 | } | |
401 | ||
402 | /* | |
403 | * Skip trailing junk... | |
404 | */ | |
405 | ||
406 | while (!isspace(*dptr & 255) && *dptr != '\0') | |
407 | dptr ++; | |
408 | while (isspace(*dptr & 255) || *dptr == ',') | |
409 | dptr ++; | |
410 | ||
411 | if (*dptr == '\0') | |
412 | break; | |
413 | } | |
414 | } | |
415 | ||
416 | /* | |
417 | * Display the printer entry if needed... | |
418 | */ | |
419 | ||
420 | if (match) | |
421 | { | |
ef416fc2 | 422 | /* |
423 | * Display it... | |
424 | */ | |
425 | ||
426 | printf("%s:\n", printer); | |
427 | if (!strncmp(device, "file:", 5)) | |
fa73b229 | 428 | _cupsLangPrintf(stdout, |
ef416fc2 | 429 | _("\tprinter is on device \'%s\' speed -1\n"), |
430 | device + 5); | |
431 | else | |
432 | { | |
433 | /* | |
434 | * Just show the scheme... | |
435 | */ | |
436 | ||
437 | if ((delimiter = strchr(device, ':')) != NULL ) | |
438 | { | |
439 | *delimiter = '\0'; | |
fa73b229 | 440 | _cupsLangPrintf(stdout, |
ef416fc2 | 441 | _("\tprinter is on device \'%s\' speed -1\n"), |
442 | device); | |
443 | } | |
444 | } | |
445 | ||
446 | if (accepting) | |
fa73b229 | 447 | _cupsLangPuts(stdout, _("\tqueuing is enabled\n")); |
ef416fc2 | 448 | else |
fa73b229 | 449 | _cupsLangPuts(stdout, _("\tqueuing is disabled\n")); |
ef416fc2 | 450 | |
451 | if (pstate != IPP_PRINTER_STOPPED) | |
fa73b229 | 452 | _cupsLangPuts(stdout, _("\tprinting is enabled\n")); |
ef416fc2 | 453 | else |
fa73b229 | 454 | _cupsLangPuts(stdout, _("\tprinting is disabled\n")); |
ef416fc2 | 455 | |
456 | if (jobcount == 0) | |
fa73b229 | 457 | _cupsLangPuts(stdout, _("\tno entries\n")); |
ef416fc2 | 458 | else |
fa73b229 | 459 | _cupsLangPrintf(stdout, _("\t%d entries\n"), jobcount); |
ef416fc2 | 460 | |
fa73b229 | 461 | _cupsLangPuts(stdout, _("\tdaemon present\n")); |
ef416fc2 | 462 | } |
463 | ||
464 | if (attr == NULL) | |
465 | break; | |
466 | } | |
467 | ||
468 | ippDelete(response); | |
469 | } | |
470 | } | |
471 | ||
472 | ||
473 | /* | |
26d47ec6 | 474 | * End of "$Id: lpc.c 6073 2006-11-02 20:01:54Z mike $". |
ef416fc2 | 475 | */ |