source3/printing/tests/vlp.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3
   4    Virtual lp system for printer testing
   5
   6    Copyright (C) Tim Potter 2000
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "system/passwd.h"
  24 #include "system/filesys.h"
  25 #include "printing.h"
  26 #include "util_tdb.h"
  27
  28 #ifdef malloc
  29 #undef malloc
  30 #endif
  31
  32 #define PRINT_FIRSTJOB "100"
  33
  34 static TDB_CONTEXT *tdb;
  35
  36 struct vlp_job {
  37         fstring owner;
  38         int jobid;
  39         fstring jobname;
  40         int size;
  41         int status;
  42         time_t submit_time;
  43         int deleted;
  44 };
  45
  46 /* Print usage */
  47
  48 static void usage(void)
  49 {
  50         printf("Usage: vlp tdbfile=/tmp/vlp.tdb lpq|lprm|print|queuepause|queueresume|"
  51                "lppause|lpresume [args]\n");
  52 }
  53
  54 /* Return an array of vlp jobs that is the printer queue */
  55
  56 static void get_job_list(char *printer, struct vlp_job **job_list,
  57                          int *num_jobs)
  58 {
  59         fstring keystr;
  60         TDB_DATA data;
  61
  62         slprintf(keystr, sizeof(keystr) - 1, "LPQ/%s", printer);
  63         data = tdb_fetch_bystring(tdb, keystr);
  64
  65         *job_list = (struct vlp_job *)data.dptr;
  66         *num_jobs = data.dsize / sizeof(struct vlp_job);
  67 }
  68
  69 /* Store an array of vl jobs for the queue */
  70
  71 static void set_job_list(char *printer, struct vlp_job *job_list,
  72                          int num_jobs)
  73 {
  74         fstring keystr;
  75         TDB_DATA data;
  76
  77         slprintf(keystr, sizeof(keystr) - 1, "LPQ/%s", printer);
  78
  79         data.dptr = (unsigned char *)job_list;
  80         data.dsize = num_jobs * sizeof(struct vlp_job);
  81         tdb_store_bystring(tdb, keystr, data, TDB_REPLACE);
  82 }
  83
  84 /* Return the next job number for a printer */
  85
  86 static int next_jobnum(char *printer)
  87 {
  88         fstring keystr;
  89         int jobnum;
  90
  91         slprintf(keystr, sizeof(keystr) - 1, "JOBNUM/%s", printer);
  92
  93         tdb_lock_bystring(tdb, keystr);
  94
  95         jobnum = tdb_fetch_int32(tdb, keystr);
  96
  97         /* Create next job index if none exists */
  98
  99         if (jobnum == -1) {
 100                 jobnum = atoi(PRINT_FIRSTJOB);
 101         }
 102
 103         jobnum++;
 104         tdb_store_int32(tdb, keystr, jobnum);
 105
 106         tdb_unlock_bystring(tdb, keystr);
 107
 108         return jobnum;
 109 }
 110
 111 static void set_printer_status(char *printer, int status)
 112 {
 113         fstring keystr;
 114         int result;
 115
 116         slprintf(keystr, sizeof(keystr) - 1, "STATUS/%s", printer);
 117         result = tdb_store_int32(tdb, keystr, status);
 118 }
 119
 120 static int get_printer_status(char *printer)
 121 {
 122         fstring keystr;
 123         TDB_DATA data;
 124
 125         slprintf(keystr, sizeof(keystr) - 1, "STATUS/%s", printer);
 126
 127         data.dptr = (unsigned char *)keystr;
 128         data.dsize = strlen(keystr) + 1;
 129
 130         if (!tdb_exists(tdb, data)) {
 131                 set_printer_status(printer, LPSTAT_OK);
 132                 return LPSTAT_OK;
 133         }
 134
 135         return tdb_fetch_int32(tdb, keystr);
 136 }
 137
 138 /* Display printer queue */
 139
 140 static int lpq_command(int argc, char **argv)
 141 {
 142         char *printer;
 143         struct vlp_job *job_list = NULL;
 144         int i, num_jobs, job_count = 0;
 145
 146         if (argc != 2) {
 147                 printf("Usage: lpq <printername>\n");
 148                 return 1;
 149         }
 150
 151         printer = argv[1];
 152
 153         /* Display printer status */
 154
 155         switch (get_printer_status(printer)) {
 156         case LPSTAT_OK:
 157                 printf("enabled\n");
 158                 break;
 159         case LPSTAT_STOPPED:
 160                 printf("disabled\n");
 161                 break;
 162         case LPSTAT_ERROR:
 163         default:
 164                 printf("error\n");
 165                 break;
 166         }
 167
 168         /* Print queued documents */
 169
 170         get_job_list(printer, &job_list, &num_jobs);
 171
 172         for (i = 0; i < num_jobs; i++) {
 173                 if (job_list[i].deleted) continue;
 174                 printf("%d\t%d\t%d\t%ld\t%s\t%s\n", job_list[i].jobid,
 175                        job_list[i].size,
 176                        (i == 0 && job_list[i].status == LPQ_QUEUED) ?
 177                        LPQ_SPOOLING : job_list[i].status,
 178                        (long int)job_list[i].submit_time, job_list[i].owner,
 179                        job_list[i].jobname);
 180                 job_count++;
 181         }
 182
 183         free(job_list);
 184
 185         return 0;
 186 }
 187
 188 /* Remove a job */
 189
 190 static int lprm_command(int argc, char **argv)
 191 {
 192         char *printer;
 193         int jobid, num_jobs, i;
 194         struct vlp_job *job_list;
 195
 196         if (argc < 3) {
 197                 printf("Usage: lprm <printername> <jobid>\n");
 198                 return 1;
 199         }
 200
 201         printer = argv[1];
 202         jobid = atoi(argv[2]);
 203
 204         get_job_list(printer, &job_list, &num_jobs);
 205
 206         for (i = 0; i < num_jobs; i++) {
 207                 if (job_list[i].jobid == jobid) {
 208                         job_list[i].deleted = 1;
 209                         set_job_list(printer, job_list, num_jobs);
 210                         break;
 211                 }
 212         }
 213
 214         return 0;
 215 }
 216
 217 /* print command = print-test %p %s */
 218
 219 static int print_command(int argc, char **argv)
 220 {
 221         char *printer;
 222         fstring keystr;
 223         struct passwd *pw;
 224         TDB_DATA value, queue;
 225         struct vlp_job job;
 226
 227         if (argc < 3) {
 228                 printf("Usage: print <printername> <jobname>\n");
 229                 return 1;
 230         }
 231
 232         printer = argv[1];
 233
 234         ZERO_STRUCT(job);
 235
 236         /* Create a job record */
 237
 238         slprintf(job.jobname, sizeof(job.jobname) - 1, "%s", argv[2]);
 239
 240         if (!(pw = getpwuid(getuid()))) {
 241                 return 1;
 242         }
 243
 244         slprintf(job.owner, sizeof(job.owner) - 1, "%s", pw->pw_name);
 245
 246         job.jobid = next_jobnum(printer);
 247         job.size = 666;
 248         job.submit_time = time(NULL);
 249
 250         /* Store job entry in queue */
 251
 252         slprintf(keystr, sizeof(keystr) - 1, "LPQ/%s", printer);
 253
 254         value = tdb_fetch_bystring(tdb, keystr);
 255
 256         if (value.dptr) {
 257
 258                 /* Add job to end of queue */
 259
 260                 queue.dptr = (unsigned char *)malloc(value.dsize + sizeof(struct vlp_job));
 261                 if (!queue.dptr) return 1;
 262
 263                 memcpy(queue.dptr, value.dptr, value.dsize);
 264                 memcpy(queue.dptr + value.dsize, &job, sizeof(struct vlp_job));
 265
 266                 queue.dsize = value.dsize + sizeof(struct vlp_job);
 267
 268                 tdb_store_bystring(tdb, keystr, queue, TDB_REPLACE);
 269
 270                 free(queue.dptr);
 271
 272         } else {
 273
 274                 /* Create new queue */
 275                 queue.dptr = (unsigned char *)&job;
 276                 queue.dsize = sizeof(struct vlp_job);
 277
 278                 tdb_store_bystring(tdb, keystr, queue, TDB_REPLACE);
 279         }
 280
 281         return 0;
 282 }
 283
 284 /* Pause the queue */
 285
 286 static int queuepause_command(int argc, char **argv)
 287 {
 288         char *printer;
 289
 290         if (argc != 2) {
 291                 printf("Usage: queuepause <printername>\n");
 292                 return 1;
 293         }
 294
 295         printer = argv[1];
 296         set_printer_status(printer, LPSTAT_STOPPED);
 297
 298         return 0;
 299 }
 300
 301 /* Resume the queue */
 302
 303 static int queueresume_command(int argc, char **argv)
 304 {
 305         char *printer;
 306
 307         if (argc != 2) {
 308                 printf("Usage: queueresume <printername>\n");
 309                 return 1;
 310         }
 311
 312         printer = argv[1];
 313         set_printer_status(printer, LPSTAT_OK);
 314
 315         return 0;
 316 }
 317
 318 /* Pause a job */
 319
 320 static int lppause_command(int argc, char **argv)
 321 {
 322         struct vlp_job *job_list;
 323         char *printer;
 324         int jobid, num_jobs, i;
 325
 326         if (argc != 3) {
 327                 printf("Usage: lppause <printername> <jobid>\n");
 328                 return 1;
 329         }
 330
 331         printer = argv[1];
 332         jobid = atoi(argv[2]);
 333
 334         get_job_list(printer, &job_list, &num_jobs);
 335
 336         for (i = 0; i < num_jobs; i++) {
 337                 if (job_list[i].jobid == jobid) {
 338                         job_list[i].status = LPQ_PAUSED;
 339                         set_job_list(printer, job_list, num_jobs);
 340                         return 0;
 341                 }
 342         }
 343
 344         return 1;
 345 }
 346
 347 /* Resume a job */
 348
 349 static int lpresume_command(int argc, char **argv)
 350 {
 351         struct vlp_job *job_list;
 352         char *printer;
 353         int jobid, num_jobs, i;
 354
 355         if (argc != 3) {
 356                 printf("Usage: lpresume <printername> <jobid>\n");
 357                 return 1;
 358         }
 359
 360         printer = argv[1];
 361         jobid = atoi(argv[2]);
 362
 363         get_job_list(printer, &job_list, &num_jobs);
 364
 365         for (i = 0; i < num_jobs; i++) {
 366                 if (job_list[i].jobid == jobid) {
 367                         job_list[i].status = LPQ_QUEUED;
 368                         set_job_list(printer, job_list, num_jobs);
 369                         return 0;
 370                 }
 371         }
 372
 373         return 1;
 374 }
 375
 376 int main(int argc, char **argv)
 377 {
 378         /* Parameter check */
 379         const char *printdb_path = NULL;
 380
 381         if (argc < 2) {
 382                 usage();
 383                 return 1;
 384         }
 385
 386         if (strncmp(argv[1], "tdbfile", strlen("tdbfile")) != 0) {
 387                 usage();
 388                 return 1;
 389         }
 390
 391         printdb_path = get_string_param(argv[1]);
 392         if (!printdb_path) {
 393                 return 1;
 394         }
 395
 396         if (!(tdb = tdb_open(printdb_path, 0, 0, O_RDWR | O_CREAT,
 397                              0666))) {
 398                 printf("%s: unable to open %s\n", argv[0], printdb_path);
 399                 return 1;
 400         }
 401
 402         /* Ensure we are modes 666 */
 403
 404         chmod(printdb_path, 0666);
 405
 406         /* Do commands */
 407
 408         if (strcmp(argv[2], "lpq") == 0) {
 409                 return lpq_command(argc - 2, &argv[2]);
 410         }
 411
 412         if (strcmp(argv[2], "lprm") == 0) {
 413                 return lprm_command(argc - 2, &argv[2]);
 414         }
 415
 416         if (strcmp(argv[2], "print") == 0) {
 417                 return print_command(argc - 2, &argv[2]);
 418         }
 419
 420         if (strcmp(argv[2], "queuepause") == 0) {
 421                 return queuepause_command(argc - 2, &argv[2]);
 422         }
 423
 424         if (strcmp(argv[2], "queueresume") == 0) {
 425                 return queueresume_command(argc - 2, &argv[2]);
 426         }
 427
 428         if (strcmp(argv[2], "lppause") == 0) {
 429                 return lppause_command(argc - 2, &argv[2]);
 430         }
 431
 432         if (strcmp(argv[2], "lpresume") == 0) {
 433                 return lpresume_command(argc - 2, &argv[2]);
 434         }
 435
 436         /* Unknown command */
 437
 438         printf("%s: invalid command %s\n", argv[0], argv[1]);
 439         return 1;
 440 }