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Commit | Line | Data |
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ef416fc2 | 1 | /* |
7e86f2f6 | 2 | * "lpc" command for CUPS. |
ef416fc2 | 3 | * |
7e86f2f6 MS |
4 | * Copyright 2007-2014 by Apple Inc. |
5 | * Copyright 1997-2006 by Easy Software Products. | |
ef416fc2 | 6 | * |
e3101897 | 7 | * Licensed under Apache License v2.0. See the file "LICENSE" for more information. |
ef416fc2 | 8 | */ |
9 | ||
10 | /* | |
11 | * Include necessary headers... | |
12 | */ | |
13 | ||
71e16022 | 14 | #include <cups/cups-private.h> |
ef416fc2 | 15 | |
16 | ||
17 | /* | |
18 | * Local functions... | |
19 | */ | |
20 | ||
7e86f2f6 | 21 | static int compare_strings(const char *, const char *, size_t); |
ef416fc2 | 22 | static void do_command(http_t *, const char *, const char *); |
23 | static void show_help(const char *); | |
9d4e1ef7 | 24 | static void show_prompt(const char *message); |
ef416fc2 | 25 | static void show_status(http_t *, const char *); |
26 | ||
27 | ||
28 | /* | |
29 | * 'main()' - Parse options and commands. | |
30 | */ | |
31 | ||
32 | int | |
33 | main(int argc, /* I - Number of command-line arguments */ | |
34 | char *argv[]) /* I - Command-line arguments */ | |
35 | { | |
36 | http_t *http; /* Connection to server */ | |
37 | char line[1024], /* Input line from user */ | |
38 | *params; /* Pointer to parameters */ | |
39 | ||
40 | ||
07725fee | 41 | _cupsSetLocale(argv); |
d09495fa | 42 | |
ef416fc2 | 43 | /* |
44 | * Connect to the scheduler... | |
45 | */ | |
46 | ||
47 | http = httpConnectEncrypt(cupsServer(), ippPort(), cupsEncryption()); | |
48 | ||
49 | if (argc > 1) | |
50 | { | |
51 | /* | |
52 | * Process a single command on the command-line... | |
53 | */ | |
54 | ||
55 | do_command(http, argv[1], argv[2]); | |
56 | } | |
57 | else | |
58 | { | |
59 | /* | |
60 | * Do the command prompt thing... | |
61 | */ | |
62 | ||
9d4e1ef7 | 63 | show_prompt(_("lpc> ")); |
ef416fc2 | 64 | while (fgets(line, sizeof(line), stdin) != NULL) |
65 | { | |
66 | /* | |
67 | * Strip trailing whitespace... | |
68 | */ | |
69 | ||
70 | for (params = line + strlen(line) - 1; params >= line;) | |
71 | if (!isspace(*params & 255)) | |
72 | break; | |
73 | else | |
74 | *params-- = '\0'; | |
75 | ||
76 | /* | |
77 | * Strip leading whitespace... | |
78 | */ | |
79 | ||
80 | for (params = line; isspace(*params & 255); params ++); | |
81 | ||
82 | if (params > line) | |
83 | _cups_strcpy(line, params); | |
84 | ||
85 | if (!line[0]) | |
86 | { | |
87 | /* | |
88 | * Nothing left, just show a prompt... | |
89 | */ | |
90 | ||
9d4e1ef7 | 91 | show_prompt(_("lpc> ")); |
ef416fc2 | 92 | continue; |
93 | } | |
94 | ||
95 | /* | |
96 | * Find any options in the string... | |
97 | */ | |
98 | ||
99 | for (params = line; *params != '\0'; params ++) | |
100 | if (isspace(*params & 255)) | |
101 | break; | |
102 | ||
103 | /* | |
104 | * Remove whitespace between the command and parameters... | |
105 | */ | |
106 | ||
107 | while (isspace(*params & 255)) | |
108 | *params++ = '\0'; | |
109 | ||
110 | /* | |
111 | * The "quit" and "exit" commands exit; otherwise, process as needed... | |
112 | */ | |
113 | ||
114 | if (!compare_strings(line, "quit", 1) || | |
115 | !compare_strings(line, "exit", 2)) | |
116 | break; | |
117 | ||
118 | if (*params == '\0') | |
119 | do_command(http, line, NULL); | |
120 | else | |
121 | do_command(http, line, params); | |
122 | ||
123 | /* | |
124 | * Put another prompt out to the user... | |
125 | */ | |
126 | ||
9d4e1ef7 | 127 | show_prompt(_("lpc> ")); |
ef416fc2 | 128 | } |
129 | } | |
130 | ||
131 | /* | |
132 | * Close the connection to the server and return... | |
133 | */ | |
134 | ||
135 | httpClose(http); | |
136 | ||
137 | return (0); | |
138 | } | |
139 | ||
140 | ||
141 | /* | |
142 | * 'compare_strings()' - Compare two command-line strings. | |
143 | */ | |
144 | ||
145 | static int /* O - -1 or 1 = no match, 0 = match */ | |
146 | compare_strings(const char *s, /* I - Command-line string */ | |
147 | const char *t, /* I - Option string */ | |
7e86f2f6 | 148 | size_t tmin) /* I - Minimum number of unique chars in option */ |
ef416fc2 | 149 | { |
7e86f2f6 | 150 | size_t slen; /* Length of command-line string */ |
ef416fc2 | 151 | |
152 | ||
153 | slen = strlen(s); | |
154 | if (slen < tmin) | |
155 | return (-1); | |
156 | else | |
157 | return (strncmp(s, t, slen)); | |
158 | } | |
159 | ||
160 | ||
161 | /* | |
162 | * 'do_command()' - Do an lpc command... | |
163 | */ | |
164 | ||
165 | static void | |
166 | do_command(http_t *http, /* I - HTTP connection to server */ | |
167 | const char *command, /* I - Command string */ | |
168 | const char *params) /* I - Parameters for command */ | |
169 | { | |
170 | if (!compare_strings(command, "status", 4)) | |
171 | show_status(http, params); | |
172 | else if (!compare_strings(command, "help", 1) || !strcmp(command, "?")) | |
173 | show_help(params); | |
174 | else | |
fa73b229 | 175 | _cupsLangPrintf(stdout, |
0837b7e8 | 176 | _("%s is not implemented by the CUPS version of lpc."), |
ef416fc2 | 177 | command); |
178 | } | |
179 | ||
180 | ||
181 | /* | |
182 | * 'show_help()' - Show help messages. | |
183 | */ | |
184 | ||
185 | static void | |
186 | show_help(const char *command) /* I - Command to describe or NULL */ | |
187 | { | |
188 | if (!command) | |
189 | { | |
fa73b229 | 190 | _cupsLangPrintf(stdout, |
ef416fc2 | 191 | _("Commands may be abbreviated. Commands are:\n" |
192 | "\n" | |
0837b7e8 | 193 | "exit help quit status ?")); |
ef416fc2 | 194 | } |
195 | else if (!compare_strings(command, "help", 1) || !strcmp(command, "?")) | |
0837b7e8 | 196 | _cupsLangPrintf(stdout, _("help\t\tGet help on commands.")); |
ef416fc2 | 197 | else if (!compare_strings(command, "status", 4)) |
0837b7e8 | 198 | _cupsLangPrintf(stdout, _("status\t\tShow status of daemon and queue.")); |
ef416fc2 | 199 | else |
0837b7e8 | 200 | _cupsLangPrintf(stdout, _("?Invalid help command unknown.")); |
ef416fc2 | 201 | } |
202 | ||
203 | ||
9d4e1ef7 MS |
204 | /* |
205 | * 'show_prompt()' - Show a localized prompt message. | |
206 | */ | |
207 | ||
208 | static void | |
209 | show_prompt(const char *message) /* I - Message string to use */ | |
210 | { | |
211 | ssize_t bytes; /* Number of bytes formatted */ | |
212 | char output[8192]; /* Message buffer */ | |
213 | cups_lang_t *lang = cupsLangDefault(); | |
214 | /* Default language */ | |
215 | ||
216 | /* | |
217 | * Transcode to the destination charset and write the prompt... | |
218 | */ | |
219 | ||
220 | if ((bytes = cupsUTF8ToCharset(output, (cups_utf8_t *)_cupsLangString(lang, message), sizeof(output), lang->encoding)) > 0) | |
221 | { | |
222 | fwrite(output, 1, (size_t)bytes, stdout); | |
223 | fflush(stdout); | |
224 | } | |
225 | } | |
226 | ||
227 | ||
ef416fc2 | 228 | /* |
229 | * 'show_status()' - Show printers. | |
230 | */ | |
231 | ||
232 | static void | |
233 | show_status(http_t *http, /* I - HTTP connection to server */ | |
234 | const char *dests) /* I - Destinations */ | |
235 | { | |
236 | ipp_t *request, /* IPP Request */ | |
26d47ec6 | 237 | *response; /* IPP Response */ |
238 | ipp_attribute_t *attr; /* Current attribute */ | |
ef416fc2 | 239 | char *printer, /* Printer name */ |
240 | *device, /* Device URI */ | |
241 | *delimiter; /* Char search result */ | |
242 | ipp_pstate_t pstate; /* Printer state */ | |
243 | int accepting; /* Is printer accepting jobs? */ | |
244 | int jobcount; /* Count of current jobs */ | |
245 | const char *dptr, /* Pointer into destination list */ | |
246 | *ptr; /* Pointer into printer name */ | |
247 | int match; /* Non-zero if this job matches */ | |
ef416fc2 | 248 | static const char *requested[] = /* Requested attributes */ |
249 | { | |
ef416fc2 | 250 | "device-uri", |
26d47ec6 | 251 | "printer-is-accepting-jobs", |
252 | "printer-name", | |
ef416fc2 | 253 | "printer-state", |
26d47ec6 | 254 | "queued-job-count" |
ef416fc2 | 255 | }; |
256 | ||
257 | ||
ef416fc2 | 258 | if (http == NULL) |
259 | return; | |
260 | ||
261 | /* | |
262 | * Build a CUPS_GET_PRINTERS request, which requires the following | |
263 | * attributes: | |
264 | * | |
265 | * attributes-charset | |
266 | * attributes-natural-language | |
267 | */ | |
268 | ||
0a682745 | 269 | request = ippNewRequest(CUPS_GET_PRINTERS); |
ef416fc2 | 270 | |
271 | ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD, | |
272 | "requested-attributes", sizeof(requested) / sizeof(requested[0]), | |
273 | NULL, requested); | |
274 | ||
275 | /* | |
276 | * Do the request and get back a response... | |
277 | */ | |
278 | ||
279 | if ((response = cupsDoRequest(http, request, "/")) != NULL) | |
280 | { | |
ef416fc2 | 281 | /* |
282 | * Loop through the printers returned in the list and display | |
283 | * their status... | |
284 | */ | |
285 | ||
286 | for (attr = response->attrs; attr != NULL; attr = attr->next) | |
287 | { | |
288 | /* | |
289 | * Skip leading attributes until we hit a job... | |
290 | */ | |
291 | ||
292 | while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER) | |
293 | attr = attr->next; | |
294 | ||
295 | if (attr == NULL) | |
296 | break; | |
297 | ||
298 | /* | |
299 | * Pull the needed attributes from this job... | |
300 | */ | |
301 | ||
302 | printer = NULL; | |
303 | device = "file:/dev/null"; | |
304 | pstate = IPP_PRINTER_IDLE; | |
305 | jobcount = 0; | |
306 | accepting = 1; | |
307 | ||
308 | while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) | |
309 | { | |
ef416fc2 | 310 | if (!strcmp(attr->name, "device-uri") && |
311 | attr->value_tag == IPP_TAG_URI) | |
312 | device = attr->values[0].string.text; | |
26d47ec6 | 313 | else if (!strcmp(attr->name, "printer-is-accepting-jobs") && |
314 | attr->value_tag == IPP_TAG_BOOLEAN) | |
ef416fc2 | 315 | accepting = attr->values[0].boolean; |
26d47ec6 | 316 | else if (!strcmp(attr->name, "printer-name") && |
317 | attr->value_tag == IPP_TAG_NAME) | |
318 | printer = attr->values[0].string.text; | |
319 | else if (!strcmp(attr->name, "printer-state") && | |
320 | attr->value_tag == IPP_TAG_ENUM) | |
321 | pstate = (ipp_pstate_t)attr->values[0].integer; | |
322 | else if (!strcmp(attr->name, "queued-job-count") && | |
323 | attr->value_tag == IPP_TAG_INTEGER) | |
324 | jobcount = attr->values[0].integer; | |
ef416fc2 | 325 | |
326 | attr = attr->next; | |
327 | } | |
328 | ||
329 | /* | |
330 | * See if we have everything needed... | |
331 | */ | |
332 | ||
333 | if (printer == NULL) | |
334 | { | |
335 | if (attr == NULL) | |
336 | break; | |
337 | else | |
338 | continue; | |
339 | } | |
340 | ||
341 | /* | |
342 | * A single 'all' printer name is special, meaning all printers. | |
343 | */ | |
344 | ||
345 | if (dests != NULL && !strcmp(dests, "all")) | |
346 | dests = NULL; | |
347 | ||
348 | /* | |
349 | * See if this is a printer we're interested in... | |
350 | */ | |
351 | ||
352 | match = dests == NULL; | |
353 | ||
354 | if (dests != NULL) | |
355 | { | |
356 | for (dptr = dests; *dptr != '\0';) | |
357 | { | |
358 | /* | |
359 | * Skip leading whitespace and commas... | |
360 | */ | |
361 | ||
362 | while (isspace(*dptr & 255) || *dptr == ',') | |
363 | dptr ++; | |
364 | ||
365 | if (*dptr == '\0') | |
366 | break; | |
367 | ||
368 | /* | |
369 | * Compare names... | |
370 | */ | |
371 | ||
372 | for (ptr = printer; | |
373 | *ptr != '\0' && *dptr != '\0' && *ptr == *dptr; | |
82cc1f9a MS |
374 | ptr ++, dptr ++) |
375 | /* do nothing */; | |
ef416fc2 | 376 | |
26d47ec6 | 377 | if (*ptr == '\0' && (*dptr == '\0' || *dptr == ',' || |
378 | isspace(*dptr & 255))) | |
ef416fc2 | 379 | { |
380 | match = 1; | |
381 | break; | |
382 | } | |
383 | ||
384 | /* | |
385 | * Skip trailing junk... | |
386 | */ | |
387 | ||
388 | while (!isspace(*dptr & 255) && *dptr != '\0') | |
389 | dptr ++; | |
390 | while (isspace(*dptr & 255) || *dptr == ',') | |
391 | dptr ++; | |
392 | ||
393 | if (*dptr == '\0') | |
394 | break; | |
395 | } | |
396 | } | |
397 | ||
398 | /* | |
399 | * Display the printer entry if needed... | |
400 | */ | |
401 | ||
402 | if (match) | |
403 | { | |
ef416fc2 | 404 | /* |
405 | * Display it... | |
406 | */ | |
407 | ||
408 | printf("%s:\n", printer); | |
409 | if (!strncmp(device, "file:", 5)) | |
fa73b229 | 410 | _cupsLangPrintf(stdout, |
0837b7e8 | 411 | _("\tprinter is on device \'%s\' speed -1"), |
ef416fc2 | 412 | device + 5); |
413 | else | |
414 | { | |
415 | /* | |
416 | * Just show the scheme... | |
417 | */ | |
418 | ||
419 | if ((delimiter = strchr(device, ':')) != NULL ) | |
420 | { | |
421 | *delimiter = '\0'; | |
fa73b229 | 422 | _cupsLangPrintf(stdout, |
0837b7e8 | 423 | _("\tprinter is on device \'%s\' speed -1"), |
ef416fc2 | 424 | device); |
425 | } | |
426 | } | |
427 | ||
428 | if (accepting) | |
0837b7e8 | 429 | _cupsLangPuts(stdout, _("\tqueuing is enabled")); |
ef416fc2 | 430 | else |
0837b7e8 | 431 | _cupsLangPuts(stdout, _("\tqueuing is disabled")); |
ef416fc2 | 432 | |
433 | if (pstate != IPP_PRINTER_STOPPED) | |
0837b7e8 | 434 | _cupsLangPuts(stdout, _("\tprinting is enabled")); |
ef416fc2 | 435 | else |
0837b7e8 | 436 | _cupsLangPuts(stdout, _("\tprinting is disabled")); |
ef416fc2 | 437 | |
438 | if (jobcount == 0) | |
0837b7e8 | 439 | _cupsLangPuts(stdout, _("\tno entries")); |
ef416fc2 | 440 | else |
0837b7e8 | 441 | _cupsLangPrintf(stdout, _("\t%d entries"), jobcount); |
ef416fc2 | 442 | |
0837b7e8 | 443 | _cupsLangPuts(stdout, _("\tdaemon present")); |
ef416fc2 | 444 | } |
445 | ||
446 | if (attr == NULL) | |
447 | break; | |
448 | } | |
449 | ||
450 | ippDelete(response); | |
451 | } | |
452 | } |