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1a41acb7 | 1 | /* |
2 | * $Source$ | |
3 | * $Author$ | |
4 | * $Header$ | |
b070f8a1 | 5 | * |
1a41acb7 | 6 | * Copyright (C) 1987, 1988 by the Massachusetts Institute of Technology |
7 | * For copying and distribution information, please see the file | |
8 | * <mit-copyright.h>. | |
9 | * | |
b070f8a1 | 10 | */ |
11 | ||
12 | #ifndef lint | |
048b1b94 | 13 | static char *rcsid_qrtn_dc = "$Header$"; |
b070f8a1 | 14 | #endif lint |
15 | ||
16 | #include <mit-copyright.h> | |
17 | #include "query.h" | |
18 | #include "mr_server.h" | |
048b1b94 | 19 | EXEC SQL INCLUDE sqlca; /* SQL Communications Area */ |
20 | EXEC SQL INCLUDE sqlda; /* SQL Descriptor Area */ | |
21 | #include "qrtn.h" | |
22 | ||
23 | MR_SQLDA_T _SQLDA; | |
24 | MR_SQLDA_T *SQLDA=&_SQLDA; | |
25 | EXEC SQL BEGIN DECLARE SECTION; | |
26 | int idummy; | |
27 | char cdummy[MR_CDUMMY_LEN]; | |
28 | char stmt_buf[MR_STMTBUF_LEN]; | |
29 | EXEC SQL END DECLARE SECTION; | |
b070f8a1 | 30 | |
31 | char *Argv[16]; | |
32 | ||
33 | int ingres_errno = 0; | |
34 | int mr_errcode = 0; | |
048b1b94 | 35 | EXEC SQL BEGIN DECLARE SECTION; |
36 | int query_timeout = 30; | |
37 | EXEC SQL END DECLARE SECTION; | |
b070f8a1 | 38 | extern char *whoami; |
39 | extern FILE *journal; | |
40 | ||
048b1b94 | 41 | /** Maybe this should be replaced by something like tytso's sql_error |
42 | ||
43 | #define INGRES_BAD_DATE1 41206 | |
44 | #define INGRES_BAD_DATE2 40207 | |
45 | #define INGRES_DEADLOCK 49900 | |
46 | /* | |
47 | #define INGRES_BAD_INT | |
48 | #define INGRES_TIMEOUT | |
49 | #define INGRES_NO_RANGE | |
50 | */ | |
b070f8a1 | 51 | |
52 | /* | |
53 | * ingerr: (supposedly) called when Ingres indicates an error. | |
54 | * I have not yet been able to get this to work to intercept a | |
55 | * database open error. | |
56 | */ | |
57 | ||
048b1b94 | 58 | static int ingerr() |
b070f8a1 | 59 | { |
048b1b94 | 60 | ingres_errno = -sqlca.sqlcode; |
b070f8a1 | 61 | |
048b1b94 | 62 | switch (ingres_errno) { |
63 | /* | |
b070f8a1 | 64 | case INGRES_BAD_INT: |
65 | mr_errcode = MR_INTEGER; | |
66 | break; | |
048b1b94 | 67 | */ |
68 | case INGRES_BAD_DATE1: | |
69 | case INGRES_BAD_DATE2: | |
b070f8a1 | 70 | mr_errcode = MR_DATE; |
71 | break; | |
72 | case INGRES_DEADLOCK: | |
73 | mr_errcode = MR_DEADLOCK; | |
74 | com_err(whoami, 0, "INGRES deadlock detected"); | |
75 | break; | |
048b1b94 | 76 | /* I just don't know what the equivalent to this is, yet. |
b070f8a1 | 77 | case INGRES_TIMEOUT: |
78 | mr_errcode = MR_BUSY; | |
79 | com_err(whoami, 0, "timed out getting lock"); | |
80 | break; | |
048b1b94 | 81 | */ |
82 | /* This probably has no equivalent. | |
b070f8a1 | 83 | case INGRES_NO_RANGE: |
84 | mr_errcode = MR_INGRES_SOFTFAIL; | |
85 | com_err(whoami, 0, "INGRES missing range statement"); | |
86 | break; | |
048b1b94 | 87 | */ |
b070f8a1 | 88 | default: |
048b1b94 | 89 | /** Add the INGRES error_text to the alert message ??? **/ |
b070f8a1 | 90 | mr_errcode = MR_INGRES_ERR; |
1a41acb7 | 91 | com_err(whoami, MR_INGRES_ERR, " code %d\n", *num); |
92 | critical_alert("MOIRA", "Moira server encountered INGRES ERROR %d", *num); | |
93 | return (*num); | |
b070f8a1 | 94 | } |
95 | return (0); | |
96 | } | |
97 | ||
048b1b94 | 98 | /* This is declarative, not executed. Moved to emphasize the fact. */ |
99 | EXEC SQL WHENEVER SQLERROR CALL ingerr; | |
100 | ||
b070f8a1 | 101 | int mr_open_database() |
102 | { | |
103 | register int i; | |
104 | char *malloc(); | |
105 | static first_open = 1; | |
106 | ||
107 | if (first_open) { | |
108 | first_open = 0; | |
109 | ||
110 | /* initialize local argv */ | |
111 | for (i = 0; i < 16; i++) | |
112 | Argv[i] = malloc(ARGLEN); | |
113 | ||
048b1b94 | 114 | /* EXEC SQL WHENEVER SQLERROR CALL ingerr; */ |
b070f8a1 | 115 | incremental_init(); |
116 | flush_cache(); | |
117 | } | |
118 | ||
119 | ingres_errno = 0; | |
120 | mr_errcode = 0; | |
121 | ||
122 | /* open the database */ | |
048b1b94 | 123 | #ifsql INGRES |
124 | EXEC SQL CONNECT moira; | |
125 | EXEC SQL set lockmode session where level = table, timeout = :query_timeout; | |
126 | EXEC SQL set lockmode on capacls where readlock = shared; | |
127 | EXEC SQL set lockmode on alias where readlock = shared; | |
128 | #endsql | |
129 | #ifsql INFORMIX | |
130 | EXEC SQL DATABASE moira | |
131 | #endsql | |
b070f8a1 | 132 | return ingres_errno; |
133 | } | |
134 | ||
135 | int mr_close_database() | |
136 | { | |
137 | flush_cache(); | |
048b1b94 | 138 | #ifsql INGRES |
139 | EXEC SQL DISCONNECT; | |
140 | #endsql | |
b070f8a1 | 141 | } |
142 | ||
143 | mr_check_access(cl, name, argc, argv_ro) | |
144 | client *cl; | |
145 | char *name; | |
146 | int argc; | |
147 | char *argv_ro[]; | |
148 | { | |
149 | struct query *q; | |
150 | struct query *get_query_by_name(); | |
151 | ||
152 | ingres_errno = 0; | |
153 | mr_errcode = 0; | |
154 | ||
155 | q = get_query_by_name(name, cl->args->mr_version_no); | |
156 | if (q == (struct query *)0) | |
157 | return(MR_NO_HANDLE); | |
158 | ||
048b1b94 | 159 | return(mr_verify_query(cl, q, argc, argv_ro)); |
b070f8a1 | 160 | } |
161 | ||
162 | mr_process_query(cl, name, argc, argv_ro, action, actarg) | |
163 | client *cl; | |
164 | char *name; | |
165 | int argc; | |
166 | char *argv_ro[]; | |
167 | int (*action)(); | |
168 | char *actarg; | |
169 | { | |
170 | register struct query *q; | |
171 | register int status; | |
172 | register struct validate *v; | |
173 | char qual[256]; | |
174 | char sort[32]; | |
175 | char *pqual; | |
176 | char *psort; | |
048b1b94 | 177 | EXEC SQL BEGIN DECLARE SECTION; |
178 | char *table_name; | |
179 | EXEC SQL END DECLARE SECTION; | |
b070f8a1 | 180 | struct save_queue *sq; |
181 | struct query *get_query_by_name(); | |
182 | int sq_save_args(); | |
183 | struct save_queue *sq_create(); | |
184 | char *build_sort(); | |
185 | ||
186 | ingres_errno = 0; | |
187 | mr_errcode = 0; | |
188 | ||
189 | /* list queries command */ | |
190 | if (!strcmp(name, "_list_queries")) { | |
191 | list_queries(cl->args->mr_version_no, action, actarg); | |
192 | return(MR_SUCCESS); | |
193 | } | |
194 | ||
195 | /* help query command */ | |
196 | if (!strcmp(name, "_help")) { | |
197 | if (argc < 1) | |
198 | return(MR_ARGS); | |
199 | q = get_query_by_name(argv_ro[0], cl->args->mr_version_no); | |
200 | if (q == (struct query *)0) return(MR_NO_HANDLE); | |
201 | help_query(q, action, actarg); | |
202 | return(MR_SUCCESS); | |
203 | } | |
204 | ||
205 | /* get query structure, return error if named query does not exist */ | |
206 | q = get_query_by_name(name, cl->args->mr_version_no); | |
207 | if (q == (struct query *)0) return(MR_NO_HANDLE); | |
208 | v = q->validate; | |
209 | ||
210 | /* setup argument vector, verify access and arguments */ | |
211 | if ((status = mr_verify_query(cl, q, argc, argv_ro)) != MR_SUCCESS) | |
212 | goto out; | |
213 | ||
214 | /* perform any special query pre-processing */ | |
215 | if (v && v->pre_rtn) { | |
216 | status = (*v->pre_rtn)(q, Argv, cl, 0); | |
217 | if (status != MR_SUCCESS) | |
218 | goto out; | |
219 | } | |
220 | ||
221 | switch (q->type) { | |
222 | case RETRIEVE: | |
223 | /* for queries that do not permit wildcarding, check if row | |
224 | uniquely exists */ | |
225 | if (v && v->field) { | |
048b1b94 | 226 | status = validate_row(q, Argv, v); |
b070f8a1 | 227 | if (status != MR_EXISTS) break; |
228 | } | |
229 | ||
230 | /* build "where" clause if needed */ | |
231 | if (q->qual) { | |
048b1b94 | 232 | build_qual(q->qual, q->argc, Argv, qual); |
b070f8a1 | 233 | pqual = qual; |
234 | } else { | |
235 | pqual = 0; | |
236 | } | |
237 | ||
238 | /* build "sort" clause if needed */ | |
239 | if (v && v->valobj) { | |
240 | psort = build_sort(v, sort); | |
241 | } else { | |
242 | psort = 0; | |
243 | } | |
244 | ||
245 | /* if there is a followup routine, then we must save the results */ | |
246 | /* of the first query for use by the followup routine */ | |
247 | /* if q->rvar = NULL, perform post_rtn only */ | |
248 | if (q->rvar) { | |
249 | if (v && v->post_rtn) { | |
250 | sq = sq_create(); | |
251 | status = do_retrieve(q, pqual, psort, sq_save_args, sq); | |
252 | if (status != MR_SUCCESS) { | |
253 | sq_destroy(sq); | |
254 | break; | |
255 | } | |
256 | status = (*v->post_rtn)(q, sq, v, action, actarg, cl); | |
257 | } else { | |
258 | /* normal retrieve */ | |
259 | status = do_retrieve(q, pqual, psort, action, actarg); | |
260 | } | |
261 | if (status != MR_SUCCESS) break; | |
262 | } else { | |
263 | status = (*v->post_rtn)(q, Argv, cl, action, actarg); | |
264 | } | |
265 | ||
266 | break; | |
267 | ||
268 | case UPDATE: | |
269 | /* see if row already exists */ | |
270 | if (v->field) { | |
271 | status = validate_row(q, Argv, v); | |
272 | if (status != MR_EXISTS) break; | |
273 | } | |
274 | ||
275 | /* build "where" clause and perform update */ | |
276 | /* if q->rvar = NULL, perform post_rtn only */ | |
277 | if (q->rvar) { | |
278 | build_qual(q->qual, q->argc, Argv, qual); | |
279 | incremental_before(q->rtable, qual, argv_ro); | |
280 | status = do_update(q, &Argv[q->argc], qual, action, actarg); | |
281 | incremental_after(q->rtable, qual, argv_ro); | |
282 | if (status != MR_SUCCESS) break; | |
283 | flush_name(argv_ro[0], q->rtable); | |
048b1b94 | 284 | table_name = q->rtable; |
b070f8a1 | 285 | if (strcmp(q->shortname, "sshi") && strcmp(q->shortname, "ssif")) { |
048b1b94 | 286 | EXEC SQL UPDATE tblstats |
287 | SET updates = updates + 1, modtime = 'now' | |
288 | WHERE table_name = :table_name; | |
b070f8a1 | 289 | } |
290 | } | |
291 | ||
292 | /* execute followup routine (if any) */ | |
293 | if (v->post_rtn) status = (*v->post_rtn)(q, Argv, cl); | |
294 | ||
295 | break; | |
296 | ||
297 | case APPEND: | |
298 | /* see if row already exists */ | |
299 | if (v->field) { | |
300 | status = validate_row(q, Argv, v); | |
301 | if (status != MR_NO_MATCH) break; | |
302 | } | |
303 | ||
304 | /* increment id number if necessary */ | |
305 | if (v->object_id) { | |
1a41acb7 | 306 | status = set_next_object_id(v->object_id, q->rtable, 0); |
b070f8a1 | 307 | if (status != MR_SUCCESS) break; |
308 | } | |
309 | ||
310 | /* build "where" clause if needed */ | |
311 | if (q->qual) { | |
312 | build_qual(q->qual, q->argc, Argv, qual); | |
313 | pqual = qual; | |
314 | } else { | |
315 | pqual = 0; | |
316 | } | |
317 | ||
318 | /* perform the append */ | |
319 | /* if q->rvar = NULL, perform post_rtn only */ | |
320 | if (q->rvar) { | |
321 | incremental_clear_before(); | |
322 | status = do_append(q, &Argv[q->argc], pqual, action, actarg); | |
323 | if (status != MR_SUCCESS) break; | |
324 | if (v && v->object_id) { | |
048b1b94 | 325 | sprintf(qual, "%s.%s = values.value and values.name = '%s', |
326 | q->rtable, v->object_id, v->object_id); | |
b070f8a1 | 327 | incremental_after(q->rtable, qual, argv_ro); |
328 | } else | |
329 | incremental_after(q->rtable, pqual, argv_ro); | |
330 | ||
048b1b94 | 331 | table_name = q->rtable; |
332 | EXEC SQL UPDATE tblstats | |
333 | SET appends = appends + 1, modtime = 'now' | |
334 | WHERE table_name = :table_name; | |
b070f8a1 | 335 | } |
336 | ||
337 | /* execute followup routine */ | |
338 | if (v->post_rtn) status = (*v->post_rtn)(q, Argv, cl); | |
339 | break; | |
340 | ||
341 | case DELETE: | |
342 | /* see if row already exists */ | |
343 | if (v->field) { | |
344 | status = validate_row(q, Argv, v); | |
345 | if (status != MR_EXISTS) break; | |
346 | } | |
347 | ||
348 | /* build "where" clause and perform delete */ | |
349 | /* if q->rvar = NULL, perform post_rtn only */ | |
350 | if (q->rvar) { | |
351 | build_qual(q->qual, q->argc, Argv, qual); | |
048b1b94 | 352 | table_name = q->rtable; |
353 | incremental_before(q->rtable, qual, argv_ro); | |
b070f8a1 | 354 | status = do_delete(q, qual, action, actarg); |
355 | incremental_clear_after(); | |
356 | if (status != MR_SUCCESS) break; | |
357 | flush_name(argv_ro[0], q->rtable); | |
048b1b94 | 358 | EXEC SQL UPDATE tblstats |
359 | SET deletes = deletes + 1, modtime = 'now' | |
360 | WHERE table_name = :table_name; | |
b070f8a1 | 361 | } |
362 | ||
363 | /* execute followup routine */ | |
364 | if (v->post_rtn) status = (*v->post_rtn)(q, Argv, cl); | |
365 | break; | |
366 | ||
367 | } | |
368 | ||
369 | out: | |
370 | if (status == MR_SUCCESS && ingres_errno != 0) { | |
371 | com_err(whoami, MR_INTERNAL, "Server didn't notice INGRES ERROR %d", | |
372 | ingres_errno); | |
373 | status = mr_errcode; | |
374 | } | |
375 | ||
048b1b94 | 376 | if (q->type == RETRIEVE) { |
377 | #ifsql INGRES | |
378 | EXEC SQL END TRANSACTION; | |
379 | #endsql | |
380 | #ifsql INFORMIX | |
381 | EXEC SQL COMMIT WORK; | |
382 | #endsql | |
383 | } else { | |
b070f8a1 | 384 | if (status == MR_SUCCESS) { |
048b1b94 | 385 | #ifsql INGRES |
386 | EXEC SQL END TRANSACTION; | |
387 | #endsql | |
388 | #ifsql INFORMIX | |
389 | EXEC SQL COMMIT WORK; | |
390 | #endsql | |
b070f8a1 | 391 | if (journal) { |
392 | char buf[1024], *bp; | |
393 | int i; | |
394 | extern time_t now; | |
395 | ||
396 | fprintf(journal, "%% %s %s %s", | |
397 | cl->clname, cl->entity, ctime(&now)); | |
398 | fprintf(journal, "%s[%d] ", q->name, cl->args->mr_version_no); | |
399 | for (i = 0; i < argc; i++) { | |
400 | if (i != 0) { | |
401 | putc(' ', journal); | |
402 | } | |
403 | requote(buf, argv_ro[i], sizeof(buf)); | |
404 | fputs(buf, journal); | |
405 | } | |
406 | putc('\n', journal); | |
407 | fflush(journal); | |
408 | } | |
409 | incremental_update(); | |
410 | } else { | |
1a41acb7 | 411 | cache_abort(); |
b070f8a1 | 412 | if (ingres_errno != INGRES_DEADLOCK) { |
048b1b94 | 413 | #ifsql INGRES |
414 | EXEC SQL ABORT; | |
415 | #endsql | |
416 | #ifsql INFORMIX | |
417 | EXEC SQL ROLLBACK WORK; | |
418 | #endsql | |
b070f8a1 | 419 | } |
420 | incremental_flush(); | |
421 | } | |
422 | } | |
1a41acb7 | 423 | cache_commit(); /* commit following abort is safe */ |
b070f8a1 | 424 | |
425 | if (status != MR_SUCCESS && log_flags & LOG_RES) | |
426 | com_err(whoami, status, " (Query failed)"); | |
427 | return(status); | |
428 | } | |
429 | ||
430 | build_qual(fmt, argc, argv, qual) | |
431 | char *fmt; | |
432 | int argc; | |
433 | char *argv[]; | |
434 | char *qual; | |
435 | { | |
436 | register char *c; | |
437 | register int i; | |
438 | char *args[4]; | |
439 | char *index(); | |
440 | ||
441 | c = fmt; | |
442 | for (i = 0; i < argc; i++) { | |
443 | c = index(c, '%'); | |
444 | if (c++ == (char *)0) return(MR_ARGS); | |
445 | if (*c == 's') | |
446 | args[i] = argv[i]; | |
447 | else if (*c == 'd') | |
448 | *(int *)&args[i] = *(int *)argv[i]; /* sigh */ | |
449 | else | |
450 | return(MR_INGRES_ERR); | |
451 | } | |
1a41acb7 | 452 | if (c = index(c, '%')) { |
453 | args[i] = args[i - 1]; | |
454 | } | |
b070f8a1 | 455 | |
456 | switch (argc) { | |
457 | case 0: | |
458 | strcpy(qual, fmt); | |
459 | break; | |
460 | ||
461 | case 1: | |
462 | sprintf(qual, fmt, args[0]); | |
463 | break; | |
464 | ||
465 | case 2: | |
466 | sprintf(qual, fmt, args[0], args[1]); | |
467 | break; | |
468 | ||
469 | case 3: | |
470 | sprintf(qual, fmt, args[0], args[1], args[2]); | |
471 | break; | |
472 | ||
473 | case 4: | |
474 | sprintf(qual, fmt, args[0], args[1], args[2], args[3]); | |
475 | break; | |
1a41acb7 | 476 | |
477 | default: | |
478 | com_err(whoami, MR_INTERNAL, | |
479 | "Internal arg count error processing query"); | |
480 | return(MR_INTERNAL); | |
b070f8a1 | 481 | } |
482 | return(MR_SUCCESS); | |
483 | } | |
484 | ||
485 | char * | |
486 | build_sort(v, sort) | |
487 | register struct validate *v; | |
488 | char *sort; | |
489 | { | |
490 | register struct valobj *vo; | |
491 | register int n; | |
492 | char elem[16]; | |
493 | ||
494 | n = v->objcnt; | |
495 | vo = v->valobj; | |
496 | *sort = 0; | |
497 | ||
498 | while (--n >= 0) { | |
499 | if (vo->type == V_SORT) { | |
048b1b94 | 500 | sprintf(elem, "%d", vo->index + 1); /* Result column number */ |
b070f8a1 | 501 | if (*sort) strcat(sort, ", "); |
502 | strcat(sort, elem); | |
503 | } | |
504 | vo++; | |
505 | } | |
506 | ||
507 | return ((*sort) ? sort : 0); | |
508 | } | |
509 | ||
510 | ||
511 | /* Build arguement vector, verify query and arguments */ | |
512 | ||
513 | mr_verify_query(cl, q, argc, argv_ro) | |
514 | client *cl; | |
515 | struct query *q; | |
516 | int argc; | |
517 | char *argv_ro[]; | |
518 | { | |
519 | register int argreq; | |
520 | register int status; | |
521 | register struct validate *v = q->validate; | |
522 | register int i; | |
523 | register int privileged = 0; | |
524 | int len; | |
525 | ||
526 | /* copy the arguments into a local argv that we can modify */ | |
527 | if (argc >= QMAXARGS) | |
528 | return(MR_ARGS); | |
529 | for (i = 0; i < argc; i++) { | |
530 | if ((len = strlen(argv_ro[i])) < ARGLEN) | |
531 | strcpy(Argv[i], argv_ro[i]); | |
532 | else | |
533 | return(MR_ARG_TOO_LONG); | |
534 | if (Argv[i][len-1] == '\\') | |
535 | return(MR_BAD_CHAR); | |
536 | } | |
537 | ||
538 | /* check initial query access */ | |
539 | status = check_query_access(q, Argv, cl); | |
540 | if (status != MR_SUCCESS && status != MR_PERM) | |
541 | return(status); | |
542 | if (status == MR_SUCCESS) | |
543 | privileged++; | |
544 | ||
545 | /* check argument count */ | |
546 | argreq = q->argc; | |
547 | if (q->type == UPDATE || q->type == APPEND) argreq += q->vcnt; | |
548 | if (argc != argreq) return(MR_ARGS); | |
549 | ||
550 | /* validate arguments */ | |
551 | if (v && v->valobj) { | |
552 | status = validate_fields(q, Argv, v->valobj, v->objcnt); | |
553 | if (status != MR_SUCCESS) return(status); | |
554 | } | |
555 | ||
556 | /* perform special query access check */ | |
557 | if (!privileged && v && v->acs_rtn) { | |
558 | status = (*v->acs_rtn)(q, Argv, cl); | |
559 | if (status != MR_SUCCESS && status != MR_PERM) | |
560 | return(status); | |
561 | if (status == MR_SUCCESS) | |
562 | privileged++; | |
563 | } | |
564 | ||
565 | return(privileged ? MR_SUCCESS : MR_PERM); | |
566 | } | |
567 | ||
568 | ||
569 | /* This routine caches info from the database. Each query acl is stored | |
570 | * in the query structure, and whether that acl contains everybody. | |
571 | */ | |
572 | ||
573 | check_query_access(q, argv, cl) | |
574 | struct query *q; | |
575 | char *argv[]; | |
576 | client *cl; | |
048b1b94 | 577 | { |
578 | EXEC SQL BEGIN DECLARE SECTION; | |
579 | char *name; | |
580 | int acl_id; | |
581 | int rowcount; | |
582 | int errorno; | |
583 | static int def_uid; | |
584 | EXEC SQL END DECLARE SECTION; | |
b070f8a1 | 585 | int status; |
586 | int client_id; | |
587 | char *client_type; | |
588 | ||
589 | /* initialize default uid */ | |
590 | if (def_uid == 0) { | |
048b1b94 | 591 | EXEC SQL SELECT users_id INTO :def_uid FROM users WHERE login='default'; |
b070f8a1 | 592 | } |
593 | ||
594 | /* get query access control list */ | |
595 | if (q->acl != 0) | |
596 | acl_id = q->acl; | |
597 | else { | |
598 | name = q->shortname; | |
048b1b94 | 599 | EXEC SQL SELECT list_id INTO :acl_id FROM capacls WHERE tag = :name; |
600 | if (sqlca.sqlcode < 0) return(MR_INGRES_ERR); | |
601 | if (sqlca.sqlcode == 100) return(MR_PERM); | |
b070f8a1 | 602 | q->acl = acl_id; |
603 | ||
604 | /* check for default access */ | |
048b1b94 | 605 | EXEC SQL SELECT member_id INTO :acl_id FROM imembers |
606 | WHERE list_id = :acl_id AND member_type = 'USER' | |
607 | AND member_id = :def_uid; | |
608 | if (sqlca.sqlerrd[2] == 0) | |
609 | q->everybody = 0; | |
610 | else | |
611 | q->everybody = 1; | |
b070f8a1 | 612 | } |
613 | ||
614 | if (q->everybody) | |
615 | return(MR_SUCCESS); | |
616 | ||
617 | if (get_client(cl, &client_type, &client_id) != MR_SUCCESS) | |
618 | return(MR_PERM); | |
619 | if (find_member("LIST", acl_id, client_type, client_id, 0)) | |
620 | return(MR_SUCCESS); | |
621 | else | |
622 | return(MR_PERM); | |
048b1b94 | 623 | } |
b070f8a1 | 624 | |
625 | ||
626 | get_client(cl, client_type, client_id) | |
627 | client *cl; | |
628 | char **client_type; | |
629 | int *client_id; | |
630 | { | |
631 | if (cl->users_id > 0) { | |
632 | *client_id = cl->users_id; | |
633 | *client_type = "USER"; | |
634 | return(MR_SUCCESS); | |
635 | } | |
636 | ||
637 | if (cl->client_id < 0) { | |
638 | *client_id = -cl->users_id; | |
639 | *client_type = "KERBEROS"; | |
640 | return(MR_SUCCESS); | |
641 | } | |
642 | ||
643 | return(MR_PERM); | |
644 | } | |
645 | ||
048b1b94 | 646 | find_member(list_type, list_id, member_type, member_id) |
1a41acb7 | 647 | char *list_type; |
048b1b94 | 648 | EXEC SQL BEGIN DECLARE SECTION; |
649 | int list_id; | |
650 | char *member_type; | |
651 | int member_id; | |
652 | EXEC SQL END DECLARE SECTION; | |
653 | { | |
654 | EXEC SQL BEGIN DECLARE SECTION; | |
655 | int flag, errorno; | |
656 | EXEC SQL END DECLARE SECTION; | |
b070f8a1 | 657 | |
658 | if (!strcmp(strtrim(list_type), strtrim(member_type)) && | |
659 | list_id == member_id) | |
660 | return(1); | |
661 | ||
662 | /* see if client is a direct member of list */ | |
048b1b94 | 663 | flag = 0; |
664 | EXEC SQL SELECT member_id INTO :flag FROM imembers | |
665 | WHERE list_id = :list_id AND member_type = :member_type | |
666 | AND member_id = :member_id; | |
667 | if(flag!=0) flag=1; /** Not strictly necessary */ | |
668 | if (sqlca.sqlcode == 0) | |
669 | return(flag); | |
670 | return(0); | |
671 | } | |
b070f8a1 | 672 | |
673 | ||
048b1b94 | 674 | do_retrieve(q, pqual, psort, action, actarg) |
b070f8a1 | 675 | register struct query *q; |
048b1b94 | 676 | EXEC SQL BEGIN DECLARE SECTION; |
b070f8a1 | 677 | char *pqual; |
678 | char *psort; | |
048b1b94 | 679 | EXEC SQL END DECLARE SECTION; |
b070f8a1 | 680 | int (*action)(); |
681 | char *actarg; | |
048b1b94 | 682 | { |
b070f8a1 | 683 | static char **vaddrs = (char **)NULL; |
684 | ||
685 | if (!vaddrs) { | |
686 | register int i; | |
687 | ||
688 | if ((vaddrs = (char **)malloc(sizeof(char *) * QMAXARGS)) == NULL) { | |
689 | com_err(whoami, MR_NO_MEM, "setting up static argv"); | |
690 | exit(1); | |
691 | } | |
692 | for (i = 0; i < QMAXARGS; i++) { | |
693 | if ((vaddrs[i] = malloc(QMAXARGSIZE)) == NULL) { | |
694 | com_err(whoami, MR_NO_MEM, "setting up static argv"); | |
695 | exit(1); | |
696 | } | |
697 | } | |
698 | } | |
699 | ||
048b1b94 | 700 | /* |
701 | * if (psort) { | |
702 | * csort = psort; | |
703 | * if (pqual) { | |
704 | * cqual = pqual; | |
705 | * retrieve unique (param (q->tlist, vaddrs)) where cqual | |
706 | * sort by csort | |
707 | * { | |
708 | * (*action)(q->vcnt, vaddrs, actarg); | |
709 | * } | |
710 | * } else { | |
711 | * retrieve unique (param (q->tlist, vaddrs)) | |
712 | * sort by csort | |
713 | * { | |
714 | * (*action)(q->vcnt, vaddrs, actarg); | |
715 | * } | |
716 | * } | |
717 | * | |
718 | * } else { | |
719 | * if (pqual) { | |
720 | * cqual = pqual; | |
721 | * retrieve unique (param (q->tlist, vaddrs)) where cqual | |
722 | * { | |
723 | * (*action)(q->vcnt, vaddrs, actarg); | |
724 | * } | |
725 | * } else { | |
726 | * retrieve unique (param (q->tlist, vaddrs)) | |
727 | * { | |
728 | * (*action)(q->vcnt, vaddrs, actarg); | |
729 | * } | |
730 | * } | |
731 | * } | |
732 | */ | |
b070f8a1 | 733 | |
048b1b94 | 734 | build_sql_stmt(stmt_buf,"SELECT",q->tlist,argv,pqual); |
735 | if(psort) { strcat(stmt_buf," ORDER BY "); strcat(stmt_buf,psort); } | |
736 | EXEC SQL PREPARE stmt FROM :stmt_buf; | |
737 | EXEC SQL DESCRIBE stmt INTO :SQLDA; | |
738 | if(SQLDA->sqld > MR_DYN_VARS) { | |
739 | comm_err(whoami, MR_INTERNAL, | |
740 | "Internal arg count error processing dynamic query"); | |
741 | return(MR_INTERNAL); | |
742 | } | |
b070f8a1 | 743 | |
048b1b94 | 744 | for(i=0;i<SQLDA->sqld;i++) { |
745 | SQLDA->sqlvar[i].sqldata=vaddr[i]; | |
746 | SQLDA->sqlvar[i].sqllen=QMAXARGSIZE-2; | |
747 | } | |
748 | EXEC SQL DECLARE csr001 CURSOR FOR stmt; | |
749 | EXEC SQL OPEN csr001; | |
750 | while(1) { | |
751 | EXEC SQL FETCH csr001 USING DESCRIPTOR :SQLDA; | |
752 | if(sqlca.sqlcode != 0) break; | |
753 | (*action)(q->vcnt, vaddrs, actarg); | |
b070f8a1 | 754 | } |
048b1b94 | 755 | EXEC SQL CLOSE csr001; |
b070f8a1 | 756 | |
757 | if (mr_errcode) return(mr_errcode); | |
048b1b94 | 758 | return ((sqlca.sqlerrd[2] == 0) ? MR_NO_MATCH : MR_SUCCESS); |
759 | } | |
760 | ||
761 | build_sql_stmt(result_buf,cmd,targetlist,argv,qual) | |
762 | char *result_buf; | |
763 | char *cmd; | |
764 | char *targetlist; | |
765 | char *argv[]; | |
766 | char *squal; | |
767 | { | |
768 | char fmt_buf[MR_STMTBUF_LEN]; | |
769 | char tmp_buf[16]; | |
770 | char *res=result_buf, *tmp=tmp_buf, *fmt=fmt_buf; | |
771 | int state; | |
772 | ||
773 | sprintf(fmt_buf,"%s %s",cmd,targetlist); | |
774 | if(qual) { strcat(fmt_buf," WHERE "); strcat(fmt_buf,qual); } | |
775 | ||
776 | for(i=0,state=0;*fmt != '\0';fmt++) { | |
777 | switch(state) { | |
778 | case 0: | |
779 | if(*fmt=='%') { /* formatting -> tmp */ | |
780 | *tmp++=*fmt; | |
781 | state=1; | |
782 | } else *res++=*fmt; /* text -> res */ | |
783 | break; | |
784 | case 1: | |
785 | if((*fmt=='%') && (tmp==tmp_buf+1)) { /* %% -> % */ | |
786 | *res++=*fmt; | |
787 | tmp=tmp_buf; | |
788 | state=0; | |
789 | } else if(isalpha(*fmt) && (*fmt!='h') && (*fmt!='l')) { /* end of formatting */ | |
790 | *tmp++=*fmt; | |
791 | *tmp='\0'; | |
792 | tmp=tmp_buf; | |
793 | sprintf(res,tmp_buf,*argv++); /* print to result buffer */ | |
794 | while(*res++) ; | |
795 | state=0; | |
796 | } else *tmp++=*fmt; /* keep copying the formatting to tmp */ | |
797 | break; | |
798 | } | |
799 | } | |
800 | *res='\0'; | |
801 | } | |
b070f8a1 | 802 | |
803 | do_update(q, argv, qual, action, actarg) | |
804 | register struct query *q; | |
805 | char *argv[]; | |
806 | char *qual; | |
807 | int (*action)(); | |
808 | char *actarg; | |
048b1b94 | 809 | { |
810 | build_sql_stmt(stmt_buf,"UPDATE",q->tlist,argv,qual); | |
811 | EXEC SQL EXECUTE IMMEDIATE stmt_buf; | |
b070f8a1 | 812 | if (mr_errcode) return(mr_errcode); |
813 | return(MR_SUCCESS); | |
048b1b94 | 814 | } |
b070f8a1 | 815 | |
816 | do_append(q, argv, pqual, action, actarg) | |
817 | register struct query *q; | |
818 | char *argv[]; | |
819 | char *pqual; | |
820 | int (*action)(); | |
821 | char *actarg; | |
048b1b94 | 822 | { |
823 | build_sql_stmt(stmt_buf,"INSERT",q->tlist,argv,pqual); | |
824 | EXEC SQL EXECUTE IMMEDIATE stmt_buf; | |
b070f8a1 | 825 | if (mr_errcode) return(mr_errcode); |
826 | return(MR_SUCCESS); | |
048b1b94 | 827 | } |
b070f8a1 | 828 | |
829 | do_delete(q, qual, action, actarg) | |
830 | register struct query *q; | |
831 | char *qual; | |
832 | int (*action)(); | |
833 | char *actarg; | |
048b1b94 | 834 | { |
835 | sprintf(stmt_buf,"DELETE FROM %s WHERE %s",q->rtable,qual); | |
836 | EXEC SQL EXECUTE IMMEDIATE :stmt_buf; | |
b070f8a1 | 837 | if (mr_errcode) return(mr_errcode); |
838 | return(MR_SUCCESS); | |
048b1b94 | 839 | } |
b070f8a1 | 840 | |
841 | ||
842 | /** | |
843 | ** set_next_object_id - set next object id in values table | |
844 | ** | |
845 | ** Inputs: object - object name in values table and in objects | |
846 | ** table - name of table objects are found in | |
1a41acb7 | 847 | ** limit - should the ID be range limited |
b070f8a1 | 848 | ** |
849 | ** - called before an APPEND operation to set the next object id to | |
850 | ** be used for the new record to the next free value | |
851 | ** | |
852 | **/ | |
853 | ||
048b1b94 | 854 | set_next_object_id(object, table_name, limit) |
855 | EXEC SQL BEGIN DECLARE SECTION; | |
1a41acb7 | 856 | char *object; |
048b1b94 | 857 | char *table_name; |
1a41acb7 | 858 | int limit; |
048b1b94 | 859 | EXEC SQL END DECLARE SECTION; |
860 | { | |
861 | EXEC SQL BEGIN DECLARE SECTION; | |
862 | int value, dummy; | |
863 | EXEC SQL END DECLARE SECTION; | |
864 | ||
865 | EXEC SQL SELECT value INTO :value FROM numvalues WHERE name = :object; | |
866 | if (sqlca.sqlerrd[2] != 1) | |
1a41acb7 | 867 | return(MR_NO_ID); |
868 | ||
048b1b94 | 869 | /* |
870 | /* retrieve (exists = any(tbl.name where tbl.name = value)) */ | |
871 | */ | |
872 | /* sprintf(buf,"SELECT name INTO :dummy FROM %s WHERE name=:value",table_name); */ | |
873 | EXEC SQL SELECT name INTO :value FROM :table_name WHERE name = :value; /** */ | |
874 | if (sqlca.sqlerrd[2] != 1) | |
1a41acb7 | 875 | return(MR_NO_ID); |
048b1b94 | 876 | while (sqlca.sqlerrd[2] != 0) { |
b070f8a1 | 877 | value++; |
1a41acb7 | 878 | if (limit && value > MAX_ID_VALUE) |
b070f8a1 | 879 | value = MIN_ID_VALUE; |
048b1b94 | 880 | /* |
881 | /* retrieve (exists = any(tbl.name where tbl.name = value)) */ | |
882 | */ | |
883 | EXEC SQL SELECT name INTO :value FROM :table_name WHERE name = :value; /** */ | |
b070f8a1 | 884 | } |
885 | ||
886 | if (LOG_RES) | |
887 | com_err(whoami, 0, "setting ID %s to %d", name, value); | |
048b1b94 | 888 | EXEC SQL UPDATE numvalues SET value = :value WHERE name = :object; |
b070f8a1 | 889 | return(MR_SUCCESS); |
048b1b94 | 890 | } |
b070f8a1 | 891 | |
892 | ||
893 | /* Turn a kerberos name into the user's ID of the account that principal | |
894 | * owns. Sets the kerberos ID and user ID. | |
895 | */ | |
896 | ||
897 | int set_krb_mapping(name, login, ok, kid, uid) | |
898 | char *name; | |
899 | char *login; | |
900 | int ok; | |
901 | int *kid; | |
902 | int *uid; | |
048b1b94 | 903 | { |
904 | EXEC SQL BEGIN DECLARE SECTION; | |
905 | int u_id, k_id; | |
906 | char *krbname; | |
907 | EXEC SQL END DECLARE SECTION; | |
b070f8a1 | 908 | |
909 | krbname = name; | |
910 | *kid = 0; | |
911 | *uid = 0; | |
912 | ||
048b1b94 | 913 | EXEC SQL SELECT k.users_id, k.string_id INTO :u_id, :k_id |
914 | FROM krbmap k, strings s | |
915 | WHERE k.string_id = s.string_id AND s.string = :krbname; | |
916 | ||
b070f8a1 | 917 | if (ingres_errno) return(mr_errcode); |
918 | ||
048b1b94 | 919 | if (sqlca.sqlerrd[2] == 1) { /* rowcount */ |
b070f8a1 | 920 | *kid = -k_id; |
921 | *uid = u_id; | |
922 | return(MR_SUCCESS); | |
923 | } | |
924 | ||
925 | if (name_to_id(name, "STRINGS", &k_id) == MR_SUCCESS) | |
926 | *kid = -k_id; | |
927 | ||
048b1b94 | 928 | if (!ok) { |
b070f8a1 | 929 | *uid = *kid; |
930 | return(MR_SUCCESS); | |
931 | } | |
932 | ||
933 | if (name_to_id(login, "USERS", uid) != MR_SUCCESS) | |
934 | *uid = 0; | |
935 | ||
936 | if (*kid == 0) | |
937 | *kid = *uid; | |
938 | if (ingres_errno) return(mr_errcode); | |
939 | return(MR_SUCCESS); | |
048b1b94 | 940 | } |
b070f8a1 | 941 | |
942 | ||
943 | /* For now this just checks the argc's. It should also see that there | |
944 | * are no duplicate names. | |
945 | */ | |
946 | ||
947 | sanity_check_queries() | |
948 | { | |
949 | register int i; | |
950 | int maxv = 0, maxa = 0; | |
951 | #ifdef MULTIPROTOCOLS | |
952 | extern int QueryCount1, QueryCount2; | |
953 | extern struct query Queries1[], Queries2[]; | |
954 | #else | |
955 | extern int QueryCount2; | |
956 | extern struct query Queries2[]; | |
957 | #endif MULTIPROTOCOLS | |
958 | ||
959 | #define MAX(x,y) ((x) > (y) ? (x) : (y)) | |
960 | ||
961 | #ifdef MULTIPROTOCOLS | |
962 | for (i = 0; i < QueryCount1; i++) { | |
963 | maxv = MAX(maxv, Queries1[i].vcnt); | |
964 | maxa = MAX(maxa, Queries1[i].argc); | |
965 | } | |
966 | #endif MULTIPROTOCOLS | |
967 | for (i = 0; i < QueryCount2; i++) { | |
968 | maxv = MAX(maxv, Queries2[i].vcnt); | |
969 | maxa = MAX(maxa, Queries2[i].argc); | |
970 | } | |
971 | if (MAX(maxv, maxa) > QMAXARGS) { | |
972 | com_err(whoami, 0, "A query has more args than QMAXARGS"); | |
973 | exit(1); | |
974 | } | |
975 | } | |
048b1b94 | 976 | |
977 | /* eof:qrtn.dc */ |