testsuite/printing/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
  24 #define PRINT_TDB "/tmp/vlp.tdb"
  25 #define PRINT_FIRSTJOB "100"
  26
  27 static TDB_CONTEXT *tdb;
  28
  29 struct vlp_job {
  30         fstring owner;
  31         int jobid;
  32         fstring jobname;
  33         int size;
  34         int status;
  35         time_t submit_time;
  36         int deleted;
  37 };
  38
  39 /* Print usage */
  40
  41 static void usage(void)
  42 {
  43         printf("Usage: print-test lpq|lprm|print|queuepause|queueresume|"
  44                "lppause|lpresume [args]\n");
  45 }
  46
  47 /* Return an array of vlp jobs that is the printer queue */
  48
  49 static void get_job_list(char *printer, struct vlp_job **job_list,
  50                          int *num_jobs)
  51 {
  52         fstring keystr;
  53         TDB_DATA data;
  54
  55         slprintf(keystr, sizeof(keystr) - 1, "LPQ/%s", printer);
  56         data = tdb_fetch_bystring(tdb, keystr);
  57
  58         *job_list = (struct vlp_job *)data.dptr;
  59         *num_jobs = data.dsize / sizeof(struct vlp_job);
  60 }
  61
  62 /* Store an array of vl jobs for the queue */
  63
  64 static void set_job_list(char *printer, struct vlp_job *job_list,
  65                          int num_jobs)
  66 {
  67         fstring keystr;
  68         TDB_DATA data;
  69
  70         slprintf(keystr, sizeof(keystr) - 1, "LPQ/%s", printer);
  71
  72         data.dptr = (unsigned char *)job_list;
  73         data.dsize = num_jobs * sizeof(struct vlp_job);
  74         tdb_store_bystring(tdb, keystr, data, TDB_REPLACE);
  75 }
  76
  77 /* Return the next job number for a printer */
  78
  79 static int next_jobnum(char *printer)
  80 {
  81         fstring keystr;
  82         int jobnum;
  83
  84         slprintf(keystr, sizeof(keystr) - 1, "JOBNUM/%s", printer);
  85
  86         tdb_lock_bystring(tdb, keystr);
  87
  88         jobnum = tdb_fetch_int32(tdb, keystr);
  89
  90         /* Create next job index if none exists */
  91
  92         if (jobnum == -1) {
  93                 jobnum = atoi(PRINT_FIRSTJOB);
  94         }
  95
  96         jobnum++;
  97         tdb_store_int32(tdb, keystr, jobnum);
  98
  99         tdb_unlock_bystring(tdb, keystr);
 100
 101         return jobnum;
 102 }
 103
 104 static void set_printer_status(char *printer, int status)
 105 {
 106         fstring keystr;
 107         int result;
 108
 109         slprintf(keystr, sizeof(keystr) - 1, "STATUS/%s", printer);
 110         result = tdb_store_int32(tdb, keystr, status);
 111 }
 112
 113 static int get_printer_status(char *printer)
 114 {
 115         fstring keystr;
 116         TDB_DATA data;
 117
 118         slprintf(keystr, sizeof(keystr) - 1, "STATUS/%s", printer);
 119
 120         data.dptr = (unsigned char *)keystr;
 121         data.dsize = strlen(keystr) + 1;
 122
 123         if (!tdb_exists(tdb, data)) {
 124                 set_printer_status(printer, LPSTAT_OK);
 125                 return LPSTAT_OK;
 126         }
 127
 128         return tdb_fetch_int32(tdb, keystr);
 129 }
 130
 131 /* Display printer queue */
 132
 133 static int lpq_command(int argc, char **argv)
 134 {
 135         char *printer;
 136         struct vlp_job *job_list = NULL;
 137         int i, num_jobs, job_count = 0;
 138
 139         if (argc != 2) {
 140                 printf("Usage: lpq <printername>\n");
 141                 return 1;
 142         }
 143
 144         printer = argv[1];
 145
 146         /* Display printer status */
 147
 148         switch (get_printer_status(printer)) {
 149         case LPSTAT_OK:
 150                 printf("enabled\n");
 151                 break;
 152         case LPSTAT_STOPPED:
 153                 printf("disabled\n");
 154                 break;
 155         case LPSTAT_ERROR:
 156         default:
 157                 printf("error\n");
 158                 break;
 159         }
 160
 161         /* Print queued documents */
 162
 163         get_job_list(printer, &job_list, &num_jobs);
 164
 165         for (i = 0; i < num_jobs; i++) {
 166                 if (job_list[i].deleted) continue;
 167                 printf("%d\t%d\t%d\t%ld\t%s\t%s\n", job_list[i].jobid,
 168                        job_list[i].size,
 169                        (i == 0 && job_list[i].status == LPQ_QUEUED) ?
 170                        LPQ_SPOOLING : job_list[i].status,
 171                        job_list[i].submit_time, job_list[i].owner,
 172                        job_list[i].jobname);
 173                 job_count++;
 174         }
 175
 176         free(job_list);
 177
 178         return 0;
 179 }
 180
 181 /* Remove a job */
 182
 183 static int lprm_command(int argc, char **argv)
 184 {
 185         char *printer;
 186         int jobid, num_jobs, i;
 187         struct vlp_job *job_list;
 188
 189         if (argc < 3) {
 190                 printf("Usage: lprm <printername> <jobid>\n");
 191                 return 1;
 192         }
 193
 194         printer = argv[1];
 195         jobid = atoi(argv[2]);
 196
 197         get_job_list(printer, &job_list, &num_jobs);
 198
 199         for (i = 0; i < num_jobs; i++) {
 200                 if (job_list[i].jobid == jobid) {
 201                         job_list[i].deleted = 1;
 202                         set_job_list(printer, job_list, num_jobs);
 203                         break;
 204                 }
 205         }
 206
 207         return 0;
 208 }
 209
 210 /* print command = print-test %p %s */
 211
 212 static int print_command(int argc, char **argv)
 213 {
 214         char *printer;
 215         fstring keystr;
 216         struct passwd *pw;
 217         TDB_DATA value, queue;
 218         struct vlp_job job;
 219         int i;
 220
 221         if (argc < 3) {
 222                 printf("Usage: print <printername> <jobname>\n");
 223                 return 1;
 224         }
 225
 226         printer = argv[1];
 227
 228         ZERO_STRUCT(job);
 229
 230         /* Create a job record */
 231
 232         for (i = 2; i < argc; i++) {
 233                 fstrcat(job.jobname, argv[i]);
 234                 if (i < argc - 1) {
 235                         fstrcat(job.jobname, " ");
 236                 }
 237         }
 238
 239         if (!(pw = getpwuid(getuid()))) {
 240                 return 1;
 241         }
 242
 243         fstrcpy(job.owner, pw->pw_name);
 244
 245         job.jobid = next_jobnum(printer);
 246         job.size = 666;
 247         job.submit_time = time(NULL);
 248
 249         /* Store job entry in queue */
 250
 251         slprintf(keystr, sizeof(keystr) - 1, "LPQ/%s", printer);
 252
 253         value = tdb_fetch_bystring(tdb, keystr);
 254
 255         if (value.dptr) {
 256
 257                 /* Add job to end of queue */
 258
 259                 queue.dptr = (unsigned char *)SMB_MALLOC(value.dsize +
 260                                                         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
 380         if (argc == 1) {
 381                 usage();
 382                 return 1;
 383         }
 384
 385         /* Initialise */
 386
 387         if (!(tdb = tdb_open(PRINT_TDB, 0, 0, O_RDWR | O_CREAT,
 388                              0666))) {
 389                 printf("%s: unable to open %s\n", argv[0], PRINT_TDB);
 390                 return 1;
 391         }
 392
 393         /* Ensure we are modes 666 */
 394
 395         chmod(PRINT_TDB, 0666);
 396
 397         /* Do commands */
 398
 399         if (strcmp(argv[1], "lpq") == 0) {
 400                 return lpq_command(argc - 1, &argv[1]);
 401         }
 402
 403         if (strcmp(argv[1], "lprm") == 0) {
 404                 return lprm_command(argc - 1, &argv[1]);
 405         }
 406
 407         if (strcmp(argv[1], "print") == 0) {
 408                 return print_command(argc - 1, &argv[1]);
 409         }
 410
 411         if (strcmp(argv[1], "queuepause") == 0) {
 412                 return queuepause_command(argc - 1, &argv[1]);
 413         }
 414
 415         if (strcmp(argv[1], "queueresume") == 0) {
 416                 return queueresume_command(argc - 1, &argv[1]);
 417         }
 418
 419         if (strcmp(argv[1], "lppause") == 0) {
 420                 return lppause_command(argc - 1, &argv[1]);
 421         }
 422
 423         if (strcmp(argv[1], "lpresume") == 0) {
 424                 return lpresume_command(argc - 1, &argv[1]);
 425         }
 426
 427         /* Unknown command */
 428
 429         printf("%s: invalid command %s\n", argv[0], argv[1]);
 430         return 1;
 431 }