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ef416fc2 | 1 | /* |
bc44d920 | 2 | * "$Id: lpc.c 6649 2007-07-11 21:46:42Z mike $" |
ef416fc2 | 3 | * |
4 | * "lpc" command for the Common UNIX Printing System (CUPS). | |
5 | * | |
bc44d920 | 6 | * Copyright 2007 by Apple Inc. |
ef416fc2 | 7 | * Copyright 1997-2006 by Easy Software Products. |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 14 | * |
15 | * Contents: | |
16 | * | |
17 | * main() - Parse options and commands. | |
18 | * compare_strings() - Compare two command-line strings. | |
19 | * do_command() - Do an lpc command... | |
20 | * show_help() - Show help messages. | |
21 | * show_status() - Show printers. | |
22 | */ | |
23 | ||
24 | /* | |
25 | * Include necessary headers... | |
26 | */ | |
27 | ||
28 | #include <stdio.h> | |
29 | #include <stdlib.h> | |
30 | #include <cups/cups.h> | |
31 | #include <cups/i18n.h> | |
32 | #include <cups/debug.h> | |
33 | #include <cups/string.h> | |
34 | ||
35 | ||
36 | /* | |
37 | * Local functions... | |
38 | */ | |
39 | ||
40 | static int compare_strings(const char *, const char *, int); | |
41 | static void do_command(http_t *, const char *, const char *); | |
42 | static void show_help(const char *); | |
43 | static void show_status(http_t *, const char *); | |
44 | ||
45 | ||
46 | /* | |
47 | * 'main()' - Parse options and commands. | |
48 | */ | |
49 | ||
50 | int | |
51 | main(int argc, /* I - Number of command-line arguments */ | |
52 | char *argv[]) /* I - Command-line arguments */ | |
53 | { | |
54 | http_t *http; /* Connection to server */ | |
55 | char line[1024], /* Input line from user */ | |
56 | *params; /* Pointer to parameters */ | |
57 | ||
58 | ||
07725fee | 59 | _cupsSetLocale(argv); |
d09495fa | 60 | |
ef416fc2 | 61 | /* |
62 | * Connect to the scheduler... | |
63 | */ | |
64 | ||
65 | http = httpConnectEncrypt(cupsServer(), ippPort(), cupsEncryption()); | |
66 | ||
67 | if (argc > 1) | |
68 | { | |
69 | /* | |
70 | * Process a single command on the command-line... | |
71 | */ | |
72 | ||
73 | do_command(http, argv[1], argv[2]); | |
74 | } | |
75 | else | |
76 | { | |
77 | /* | |
78 | * Do the command prompt thing... | |
79 | */ | |
80 | ||
fa73b229 | 81 | _cupsLangPuts(stdout, _("lpc> ")); |
ef416fc2 | 82 | while (fgets(line, sizeof(line), stdin) != NULL) |
83 | { | |
84 | /* | |
85 | * Strip trailing whitespace... | |
86 | */ | |
87 | ||
88 | for (params = line + strlen(line) - 1; params >= line;) | |
89 | if (!isspace(*params & 255)) | |
90 | break; | |
91 | else | |
92 | *params-- = '\0'; | |
93 | ||
94 | /* | |
95 | * Strip leading whitespace... | |
96 | */ | |
97 | ||
98 | for (params = line; isspace(*params & 255); params ++); | |
99 | ||
100 | if (params > line) | |
101 | _cups_strcpy(line, params); | |
102 | ||
103 | if (!line[0]) | |
104 | { | |
105 | /* | |
106 | * Nothing left, just show a prompt... | |
107 | */ | |
108 | ||
fa73b229 | 109 | _cupsLangPuts(stdout, _("lpc> ")); |
ef416fc2 | 110 | continue; |
111 | } | |
112 | ||
113 | /* | |
114 | * Find any options in the string... | |
115 | */ | |
116 | ||
117 | for (params = line; *params != '\0'; params ++) | |
118 | if (isspace(*params & 255)) | |
119 | break; | |
120 | ||
121 | /* | |
122 | * Remove whitespace between the command and parameters... | |
123 | */ | |
124 | ||
125 | while (isspace(*params & 255)) | |
126 | *params++ = '\0'; | |
127 | ||
128 | /* | |
129 | * The "quit" and "exit" commands exit; otherwise, process as needed... | |
130 | */ | |
131 | ||
132 | if (!compare_strings(line, "quit", 1) || | |
133 | !compare_strings(line, "exit", 2)) | |
134 | break; | |
135 | ||
136 | if (*params == '\0') | |
137 | do_command(http, line, NULL); | |
138 | else | |
139 | do_command(http, line, params); | |
140 | ||
141 | /* | |
142 | * Put another prompt out to the user... | |
143 | */ | |
144 | ||
fa73b229 | 145 | _cupsLangPuts(stdout, _("lpc> ")); |
ef416fc2 | 146 | } |
147 | } | |
148 | ||
149 | /* | |
150 | * Close the connection to the server and return... | |
151 | */ | |
152 | ||
153 | httpClose(http); | |
154 | ||
155 | return (0); | |
156 | } | |
157 | ||
158 | ||
159 | /* | |
160 | * 'compare_strings()' - Compare two command-line strings. | |
161 | */ | |
162 | ||
163 | static int /* O - -1 or 1 = no match, 0 = match */ | |
164 | compare_strings(const char *s, /* I - Command-line string */ | |
165 | const char *t, /* I - Option string */ | |
166 | int tmin) /* I - Minimum number of unique chars in option */ | |
167 | { | |
168 | int slen; /* Length of command-line string */ | |
169 | ||
170 | ||
171 | slen = strlen(s); | |
172 | if (slen < tmin) | |
173 | return (-1); | |
174 | else | |
175 | return (strncmp(s, t, slen)); | |
176 | } | |
177 | ||
178 | ||
179 | /* | |
180 | * 'do_command()' - Do an lpc command... | |
181 | */ | |
182 | ||
183 | static void | |
184 | do_command(http_t *http, /* I - HTTP connection to server */ | |
185 | const char *command, /* I - Command string */ | |
186 | const char *params) /* I - Parameters for command */ | |
187 | { | |
188 | if (!compare_strings(command, "status", 4)) | |
189 | show_status(http, params); | |
190 | else if (!compare_strings(command, "help", 1) || !strcmp(command, "?")) | |
191 | show_help(params); | |
192 | else | |
fa73b229 | 193 | _cupsLangPrintf(stdout, |
ef416fc2 | 194 | _("%s is not implemented by the CUPS version of lpc.\n"), |
195 | command); | |
196 | } | |
197 | ||
198 | ||
199 | /* | |
200 | * 'show_help()' - Show help messages. | |
201 | */ | |
202 | ||
203 | static void | |
204 | show_help(const char *command) /* I - Command to describe or NULL */ | |
205 | { | |
206 | if (!command) | |
207 | { | |
fa73b229 | 208 | _cupsLangPrintf(stdout, |
ef416fc2 | 209 | _("Commands may be abbreviated. Commands are:\n" |
210 | "\n" | |
211 | "exit help quit status ?\n")); | |
212 | } | |
213 | else if (!compare_strings(command, "help", 1) || !strcmp(command, "?")) | |
fa73b229 | 214 | _cupsLangPrintf(stdout, _("help\t\tget help on commands\n")); |
ef416fc2 | 215 | else if (!compare_strings(command, "status", 4)) |
fa73b229 | 216 | _cupsLangPrintf(stdout, _("status\t\tshow status of daemon and queue\n")); |
ef416fc2 | 217 | else |
fa73b229 | 218 | _cupsLangPrintf(stdout, _("?Invalid help command unknown\n")); |
ef416fc2 | 219 | } |
220 | ||
221 | ||
222 | /* | |
223 | * 'show_status()' - Show printers. | |
224 | */ | |
225 | ||
226 | static void | |
227 | show_status(http_t *http, /* I - HTTP connection to server */ | |
228 | const char *dests) /* I - Destinations */ | |
229 | { | |
230 | ipp_t *request, /* IPP Request */ | |
26d47ec6 | 231 | *response; /* IPP Response */ |
232 | ipp_attribute_t *attr; /* Current attribute */ | |
ef416fc2 | 233 | char *printer, /* Printer name */ |
234 | *device, /* Device URI */ | |
235 | *delimiter; /* Char search result */ | |
236 | ipp_pstate_t pstate; /* Printer state */ | |
237 | int accepting; /* Is printer accepting jobs? */ | |
238 | int jobcount; /* Count of current jobs */ | |
239 | const char *dptr, /* Pointer into destination list */ | |
240 | *ptr; /* Pointer into printer name */ | |
241 | int match; /* Non-zero if this job matches */ | |
ef416fc2 | 242 | static const char *requested[] = /* Requested attributes */ |
243 | { | |
ef416fc2 | 244 | "device-uri", |
26d47ec6 | 245 | "printer-is-accepting-jobs", |
246 | "printer-name", | |
ef416fc2 | 247 | "printer-state", |
26d47ec6 | 248 | "queued-job-count" |
ef416fc2 | 249 | }; |
250 | ||
251 | ||
252 | DEBUG_printf(("show_status(http=%p, dests=\"%s\")\n", http, dests)); | |
253 | ||
254 | if (http == NULL) | |
255 | return; | |
256 | ||
257 | /* | |
258 | * Build a CUPS_GET_PRINTERS request, which requires the following | |
259 | * attributes: | |
260 | * | |
261 | * attributes-charset | |
262 | * attributes-natural-language | |
263 | */ | |
264 | ||
0a682745 | 265 | request = ippNewRequest(CUPS_GET_PRINTERS); |
ef416fc2 | 266 | |
267 | ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD, | |
268 | "requested-attributes", sizeof(requested) / sizeof(requested[0]), | |
269 | NULL, requested); | |
270 | ||
271 | /* | |
272 | * Do the request and get back a response... | |
273 | */ | |
274 | ||
275 | if ((response = cupsDoRequest(http, request, "/")) != NULL) | |
276 | { | |
277 | DEBUG_puts("show_status: request succeeded..."); | |
278 | ||
279 | /* | |
280 | * Loop through the printers returned in the list and display | |
281 | * their status... | |
282 | */ | |
283 | ||
284 | for (attr = response->attrs; attr != NULL; attr = attr->next) | |
285 | { | |
286 | /* | |
287 | * Skip leading attributes until we hit a job... | |
288 | */ | |
289 | ||
290 | while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER) | |
291 | attr = attr->next; | |
292 | ||
293 | if (attr == NULL) | |
294 | break; | |
295 | ||
296 | /* | |
297 | * Pull the needed attributes from this job... | |
298 | */ | |
299 | ||
300 | printer = NULL; | |
301 | device = "file:/dev/null"; | |
302 | pstate = IPP_PRINTER_IDLE; | |
303 | jobcount = 0; | |
304 | accepting = 1; | |
305 | ||
306 | while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) | |
307 | { | |
ef416fc2 | 308 | if (!strcmp(attr->name, "device-uri") && |
309 | attr->value_tag == IPP_TAG_URI) | |
310 | device = attr->values[0].string.text; | |
26d47ec6 | 311 | else if (!strcmp(attr->name, "printer-is-accepting-jobs") && |
312 | attr->value_tag == IPP_TAG_BOOLEAN) | |
ef416fc2 | 313 | accepting = attr->values[0].boolean; |
26d47ec6 | 314 | else if (!strcmp(attr->name, "printer-name") && |
315 | attr->value_tag == IPP_TAG_NAME) | |
316 | printer = attr->values[0].string.text; | |
317 | else if (!strcmp(attr->name, "printer-state") && | |
318 | attr->value_tag == IPP_TAG_ENUM) | |
319 | pstate = (ipp_pstate_t)attr->values[0].integer; | |
320 | else if (!strcmp(attr->name, "queued-job-count") && | |
321 | attr->value_tag == IPP_TAG_INTEGER) | |
322 | jobcount = attr->values[0].integer; | |
ef416fc2 | 323 | |
324 | attr = attr->next; | |
325 | } | |
326 | ||
327 | /* | |
328 | * See if we have everything needed... | |
329 | */ | |
330 | ||
331 | if (printer == NULL) | |
332 | { | |
333 | if (attr == NULL) | |
334 | break; | |
335 | else | |
336 | continue; | |
337 | } | |
338 | ||
339 | /* | |
340 | * A single 'all' printer name is special, meaning all printers. | |
341 | */ | |
342 | ||
343 | if (dests != NULL && !strcmp(dests, "all")) | |
344 | dests = NULL; | |
345 | ||
346 | /* | |
347 | * See if this is a printer we're interested in... | |
348 | */ | |
349 | ||
350 | match = dests == NULL; | |
351 | ||
352 | if (dests != NULL) | |
353 | { | |
354 | for (dptr = dests; *dptr != '\0';) | |
355 | { | |
356 | /* | |
357 | * Skip leading whitespace and commas... | |
358 | */ | |
359 | ||
360 | while (isspace(*dptr & 255) || *dptr == ',') | |
361 | dptr ++; | |
362 | ||
363 | if (*dptr == '\0') | |
364 | break; | |
365 | ||
366 | /* | |
367 | * Compare names... | |
368 | */ | |
369 | ||
370 | for (ptr = printer; | |
371 | *ptr != '\0' && *dptr != '\0' && *ptr == *dptr; | |
372 | ptr ++, dptr ++); | |
373 | ||
26d47ec6 | 374 | if (*ptr == '\0' && (*dptr == '\0' || *dptr == ',' || |
375 | isspace(*dptr & 255))) | |
ef416fc2 | 376 | { |
377 | match = 1; | |
378 | break; | |
379 | } | |
380 | ||
381 | /* | |
382 | * Skip trailing junk... | |
383 | */ | |
384 | ||
385 | while (!isspace(*dptr & 255) && *dptr != '\0') | |
386 | dptr ++; | |
387 | while (isspace(*dptr & 255) || *dptr == ',') | |
388 | dptr ++; | |
389 | ||
390 | if (*dptr == '\0') | |
391 | break; | |
392 | } | |
393 | } | |
394 | ||
395 | /* | |
396 | * Display the printer entry if needed... | |
397 | */ | |
398 | ||
399 | if (match) | |
400 | { | |
ef416fc2 | 401 | /* |
402 | * Display it... | |
403 | */ | |
404 | ||
405 | printf("%s:\n", printer); | |
406 | if (!strncmp(device, "file:", 5)) | |
fa73b229 | 407 | _cupsLangPrintf(stdout, |
ef416fc2 | 408 | _("\tprinter is on device \'%s\' speed -1\n"), |
409 | device + 5); | |
410 | else | |
411 | { | |
412 | /* | |
413 | * Just show the scheme... | |
414 | */ | |
415 | ||
416 | if ((delimiter = strchr(device, ':')) != NULL ) | |
417 | { | |
418 | *delimiter = '\0'; | |
fa73b229 | 419 | _cupsLangPrintf(stdout, |
ef416fc2 | 420 | _("\tprinter is on device \'%s\' speed -1\n"), |
421 | device); | |
422 | } | |
423 | } | |
424 | ||
425 | if (accepting) | |
fa73b229 | 426 | _cupsLangPuts(stdout, _("\tqueuing is enabled\n")); |
ef416fc2 | 427 | else |
fa73b229 | 428 | _cupsLangPuts(stdout, _("\tqueuing is disabled\n")); |
ef416fc2 | 429 | |
430 | if (pstate != IPP_PRINTER_STOPPED) | |
fa73b229 | 431 | _cupsLangPuts(stdout, _("\tprinting is enabled\n")); |
ef416fc2 | 432 | else |
fa73b229 | 433 | _cupsLangPuts(stdout, _("\tprinting is disabled\n")); |
ef416fc2 | 434 | |
435 | if (jobcount == 0) | |
fa73b229 | 436 | _cupsLangPuts(stdout, _("\tno entries\n")); |
ef416fc2 | 437 | else |
fa73b229 | 438 | _cupsLangPrintf(stdout, _("\t%d entries\n"), jobcount); |
ef416fc2 | 439 | |
fa73b229 | 440 | _cupsLangPuts(stdout, _("\tdaemon present\n")); |
ef416fc2 | 441 | } |
442 | ||
443 | if (attr == NULL) | |
444 | break; | |
445 | } | |
446 | ||
447 | ippDelete(response); | |
448 | } | |
449 | } | |
450 | ||
451 | ||
452 | /* | |
bc44d920 | 453 | * End of "$Id: lpc.c 6649 2007-07-11 21:46:42Z mike $". |
ef416fc2 | 454 | */ |