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1 | /* | |
2 | * $Source$ | |
3 | * $Author$ | |
4 | * $Header$ | |
5 | * | |
6 | * Copyright (C) 1987 by the Massachusetts Institute of Technology | |
7 | * For copying and distribution information, please see the file | |
8 | * <mit-copyright.h>. | |
9 | * | |
10 | */ | |
11 | ||
12 | #ifndef lint | |
13 | static char *rcsid_qsupport_dc = "$Header$"; | |
14 | #endif lint | |
15 | ||
16 | #include <mit-copyright.h> | |
17 | #include <unistd.h> | |
18 | #include "query.h" | |
19 | #include "mr_server.h" | |
20 | #include <ctype.h> | |
21 | EXEC SQL INCLUDE sqlca; | |
22 | EXEC SQL INCLUDE sqlda; | |
23 | #include "qrtn.h" | |
24 | ||
25 | extern char *whoami; | |
26 | extern int ingres_errno, mr_errcode; | |
27 | ||
28 | EXEC SQL BEGIN DECLARE SECTION; | |
29 | extern char stmt_buf[]; | |
30 | EXEC SQL END DECLARE SECTION; | |
31 | ||
32 | EXEC SQL WHENEVER SQLERROR CALL ingerr; | |
33 | ||
34 | #ifdef _DEBUG_MALLOC_INC | |
35 | #undef index | |
36 | #define dbg_index(str1,c) DBindex(__FILE__, __LINE__, str1, c) | |
37 | #else | |
38 | #define dbg_index index | |
39 | #endif | |
40 | ||
41 | /* Validation Routines */ | |
42 | ||
43 | validate_row(q, argv, v) | |
44 | register struct query *q; | |
45 | char *argv[]; | |
46 | register struct validate *v; | |
47 | { | |
48 | EXEC SQL BEGIN DECLARE SECTION; | |
49 | char *name; | |
50 | char qual[128]; | |
51 | int rowcount; | |
52 | EXEC SQL END DECLARE SECTION; | |
53 | ||
54 | /* build where clause */ | |
55 | build_qual(v->qual, v->argc, argv, qual); | |
56 | ||
57 | if (log_flags & LOG_VALID) | |
58 | /* tell the logfile what we're doing */ | |
59 | com_err(whoami, 0, "validating row: %s", qual); | |
60 | ||
61 | /* look for the record */ | |
62 | sprintf(stmt_buf,"SELECT COUNT (*) FROM %s WHERE %s",q->rtable,qual); | |
63 | EXEC SQL PREPARE stmt INTO :SQLDA USING NAMES FROM :stmt_buf; | |
64 | if(sqlca.sqlcode) | |
65 | return(MR_INTERNAL); | |
66 | EXEC SQL DECLARE csr126 CURSOR FOR stmt; | |
67 | EXEC SQL OPEN csr126; | |
68 | EXEC SQL FETCH csr126 USING DESCRIPTOR :SQLDA; | |
69 | EXEC SQL CLOSE csr126; | |
70 | rowcount = *(int *)SQLDA->sqlvar[0].sqldata; | |
71 | ||
72 | if (ingres_errno) return(mr_errcode); | |
73 | if (rowcount == 0) return(MR_NO_MATCH); | |
74 | if (rowcount > 1) return(MR_NOT_UNIQUE); | |
75 | return(MR_EXISTS); | |
76 | } | |
77 | ||
78 | validate_fields(q, argv, vo, n) | |
79 | struct query *q; | |
80 | register char *argv[]; | |
81 | register struct valobj *vo; | |
82 | register int n; | |
83 | { | |
84 | register int status; | |
85 | ||
86 | while (--n >= 0) { | |
87 | switch (vo->type) { | |
88 | case V_NAME: | |
89 | if (log_flags & LOG_VALID) | |
90 | com_err(whoami, 0, "validating %s in %s: %s", | |
91 | vo->namefield, vo->table, argv[vo->index]); | |
92 | status = validate_name(argv, vo); | |
93 | break; | |
94 | ||
95 | case V_ID: | |
96 | if (log_flags & LOG_VALID) | |
97 | com_err(whoami, 0, "validating %s in %s: %s", | |
98 | vo->idfield, vo->table, argv[vo->index]); | |
99 | status = validate_id(q, argv, vo); | |
100 | break; | |
101 | ||
102 | case V_DATE: | |
103 | if (log_flags & LOG_VALID) | |
104 | com_err(whoami, 0, "validating date: %s", argv[vo->index]); | |
105 | status = validate_date(argv, vo); | |
106 | break; | |
107 | ||
108 | case V_TYPE: | |
109 | if (log_flags & LOG_VALID) | |
110 | com_err(whoami, 0, "validating %s type: %s", | |
111 | vo->table, argv[vo->index]); | |
112 | status = validate_type(argv, vo); | |
113 | break; | |
114 | ||
115 | case V_TYPEDATA: | |
116 | if (log_flags & LOG_VALID) | |
117 | com_err(whoami, 0, "validating typed data (%s): %s", | |
118 | argv[vo->index - 1], argv[vo->index]); | |
119 | status = validate_typedata(q, argv, vo); | |
120 | break; | |
121 | ||
122 | case V_RENAME: | |
123 | if (log_flags & LOG_VALID) | |
124 | com_err(whoami, 0, "validating rename %s in %s", | |
125 | argv[vo->index], vo->table); | |
126 | status = validate_rename(argv, vo); | |
127 | break; | |
128 | ||
129 | case V_CHAR: | |
130 | if (log_flags & LOG_VALID) | |
131 | com_err(whoami, 0, "validating chars: %s", argv[vo->index]); | |
132 | status = validate_chars(argv[vo->index]); | |
133 | break; | |
134 | ||
135 | case V_SORT: | |
136 | status = MR_EXISTS; | |
137 | break; | |
138 | ||
139 | case V_LOCK: | |
140 | status = lock_table(vo); | |
141 | break; | |
142 | ||
143 | case V_RLOCK: | |
144 | status = readlock_table(vo); | |
145 | break; | |
146 | case V_WILD: | |
147 | status = convert_wildcards(argv[vo->index]); | |
148 | break; | |
149 | ||
150 | case V_UPWILD: | |
151 | status = convert_wildcards_uppercase(argv[vo->index]); | |
152 | break; | |
153 | ||
154 | } | |
155 | ||
156 | if (status != MR_EXISTS){ | |
157 | com_err(whoami,0,"validation failed type=%ld, code=%ld\n",vo->type, status); | |
158 | return(status); | |
159 | } | |
160 | vo++; | |
161 | } | |
162 | ||
163 | if (ingres_errno) return(mr_errcode); | |
164 | return(MR_SUCCESS); | |
165 | } | |
166 | ||
167 | ||
168 | /* validate_chars: verify that there are no illegal characters in | |
169 | * the string. Legal characters are printing chars other than | |
170 | * ", *, ?, \, [ and ]. | |
171 | */ | |
172 | static int illegalchars[] = { | |
173 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* ^@ - ^O */ | |
174 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* ^P - ^_ */ | |
175 | 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, /* SPACE - / */ | |
176 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, /* 0 - ? */ | |
177 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* : - O */ | |
178 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, /* P - _ */ | |
179 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* ` - o */ | |
180 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, /* p - ^? */ | |
181 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
182 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
183 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
184 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
185 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
186 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
187 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
188 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
189 | }; | |
190 | ||
191 | validate_chars(s) | |
192 | register char *s; | |
193 | { | |
194 | while (*s) | |
195 | if (illegalchars[*s++]) | |
196 | return(MR_BAD_CHAR); | |
197 | return(MR_EXISTS); | |
198 | } | |
199 | ||
200 | ||
201 | validate_id(q, argv, vo) | |
202 | struct query *q; | |
203 | char *argv[]; | |
204 | register struct valobj *vo; | |
205 | { | |
206 | EXEC SQL BEGIN DECLARE SECTION; | |
207 | char *name, *tbl, *namefield, *idfield; | |
208 | int id, rowcount; | |
209 | EXEC SQL END DECLARE SECTION; | |
210 | int status; | |
211 | register char *c; | |
212 | ||
213 | name = argv[vo->index]; | |
214 | tbl = vo->table; | |
215 | namefield = vo->namefield; | |
216 | idfield = vo->idfield; | |
217 | ||
218 | if ((!strcmp(tbl, "users") && !strcmp(namefield, "login")) || | |
219 | !strcmp(tbl, "machine") || | |
220 | !strcmp(tbl, "subnet") || | |
221 | !strcmp(tbl, "filesys") || | |
222 | !strcmp(tbl, "list") || | |
223 | !strcmp(tbl, "cluster") || | |
224 | !strcmp(tbl, "strings")) { | |
225 | if (!strcmp(tbl, "machine") || !strcmp(tbl, "subnet")) | |
226 | for (c = name; *c; c++) if (islower(*c)) *c = toupper(*c); | |
227 | status = name_to_id(name, tbl, &id); | |
228 | if (status == 0) { | |
229 | *(int *)argv[vo->index] = id; | |
230 | return(MR_EXISTS); | |
231 | } else if (status == MR_NO_MATCH && !strcmp(tbl, "strings") && | |
232 | (q->type == APPEND || q->type == UPDATE)) { | |
233 | id=add_string(name); | |
234 | cache_entry(name, "STRING", id); | |
235 | *(int *)argv[vo->index] = id; | |
236 | return(MR_EXISTS); | |
237 | } else if (status == MR_NO_MATCH || status == MR_NOT_UNIQUE) | |
238 | return(vo->error); | |
239 | else | |
240 | return(status); | |
241 | } | |
242 | ||
243 | if (!strcmp(namefield, "uid")) { | |
244 | sprintf(stmt_buf,"SELECT %s FROM %s WHERE %s = %s",idfield,tbl,namefield,name); | |
245 | } else { | |
246 | sprintf(stmt_buf,"SELECT %s FROM %s WHERE %s = '%s'",idfield,tbl,namefield,name); | |
247 | } | |
248 | EXEC SQL PREPARE stmt INTO :SQLDA USING NAMES FROM :stmt_buf; | |
249 | if(sqlca.sqlcode) | |
250 | return(MR_INTERNAL); | |
251 | EXEC SQL DECLARE csr127 CURSOR FOR stmt; | |
252 | EXEC SQL OPEN csr127; | |
253 | rowcount=0; | |
254 | EXEC SQL FETCH csr127 USING DESCRIPTOR :SQLDA; | |
255 | if(sqlca.sqlcode == 0) { | |
256 | rowcount++; | |
257 | EXEC SQL FETCH csr127 USING DESCRIPTOR :SQLDA; | |
258 | if(sqlca.sqlcode == 0) rowcount++; | |
259 | } | |
260 | EXEC SQL CLOSE csr127; | |
261 | if (ingres_errno) | |
262 | return(mr_errcode); | |
263 | ||
264 | if (rowcount != 1) return(vo->error); | |
265 | bcopy(SQLDA->sqlvar[0].sqldata,argv[vo->index],sizeof(int)); | |
266 | return(MR_EXISTS); | |
267 | } | |
268 | ||
269 | validate_name(argv, vo) | |
270 | char *argv[]; | |
271 | register struct valobj *vo; | |
272 | { | |
273 | EXEC SQL BEGIN DECLARE SECTION; | |
274 | char *name, *tbl, *namefield; | |
275 | int rowcount; | |
276 | EXEC SQL END DECLARE SECTION; | |
277 | register char *c; | |
278 | ||
279 | name = argv[vo->index]; | |
280 | tbl = vo->table; | |
281 | namefield = vo->namefield; | |
282 | if (!strcmp(tbl, "servers") && !strcmp(namefield, "name")) { | |
283 | for (c = name; *c; c++) | |
284 | if (islower(*c)) | |
285 | *c = toupper(*c); | |
286 | } | |
287 | sprintf(stmt_buf,"SELECT DISTINCT COUNT(*) FROM %s WHERE %s.%s = '%s'", | |
288 | tbl,tbl,namefield,name); | |
289 | EXEC SQL PREPARE stmt INTO :SQLDA USING NAMES FROM :stmt_buf; | |
290 | if(sqlca.sqlcode) | |
291 | return(MR_INTERNAL); | |
292 | EXEC SQL DECLARE csr128 CURSOR FOR stmt; | |
293 | EXEC SQL OPEN csr128; | |
294 | EXEC SQL FETCH csr128 USING DESCRIPTOR :SQLDA; | |
295 | rowcount = *(int *)SQLDA->sqlvar[0].sqldata; | |
296 | EXEC SQL CLOSE csr128; | |
297 | ||
298 | if (ingres_errno) return(mr_errcode); | |
299 | return ((rowcount == 1) ? MR_EXISTS : vo->error); | |
300 | } | |
301 | ||
302 | validate_date(argv, vo) | |
303 | char *argv[]; | |
304 | struct valobj *vo; | |
305 | { | |
306 | EXEC SQL BEGIN DECLARE SECTION; | |
307 | char *idate; | |
308 | double dd; | |
309 | int errorno; | |
310 | EXEC SQL END DECLARE SECTION; | |
311 | ||
312 | idate = argv[vo->index]; | |
313 | EXEC SQL SELECT interval('years',date(:idate)-date('today')) INTO :dd; | |
314 | ||
315 | if (sqlca.sqlcode != 0 || dd > 5.0) return(MR_DATE); | |
316 | return(MR_EXISTS); | |
317 | } | |
318 | ||
319 | ||
320 | validate_rename(argv, vo) | |
321 | char *argv[]; | |
322 | struct valobj *vo; | |
323 | { | |
324 | EXEC SQL BEGIN DECLARE SECTION; | |
325 | char *name, *tbl, *namefield, *idfield; | |
326 | int id; | |
327 | EXEC SQL END DECLARE SECTION; | |
328 | int status; | |
329 | register char *c; | |
330 | ||
331 | c = name = argv[vo->index]; | |
332 | while (*c) | |
333 | if (illegalchars[*c++]) | |
334 | return(MR_BAD_CHAR); | |
335 | tbl = vo->table; | |
336 | /* minor kludge to upcasify machine names */ | |
337 | if (!strcmp(tbl, "machine")) | |
338 | for (c = name; *c; c++) if (islower(*c)) *c = toupper(*c); | |
339 | namefield = vo->namefield; | |
340 | idfield = vo->idfield; | |
341 | id = -1; | |
342 | if (idfield == 0) { | |
343 | if (!strcmp(argv[vo->index], argv[vo->index - 1])) | |
344 | return(MR_EXISTS); | |
345 | sprintf(stmt_buf,"SELECT %s FROM %s WHERE %s = LEFT('%s',SIZE(%s))", | |
346 | namefield,tbl,namefield,name,namefield); | |
347 | EXEC SQL PREPARE stmt INTO :SQLDA USING NAMES FROM :stmt_buf; | |
348 | if(sqlca.sqlcode) | |
349 | return(MR_INTERNAL); | |
350 | EXEC SQL DECLARE csr129 CURSOR FOR stmt; | |
351 | EXEC SQL OPEN csr129; | |
352 | EXEC SQL FETCH csr129 USING DESCRIPTOR :SQLDA; | |
353 | if(sqlca.sqlcode == 0) id=1; else id=0; | |
354 | EXEC SQL CLOSE csr129; | |
355 | ||
356 | if (ingres_errno) return(mr_errcode); | |
357 | if (id) | |
358 | return(vo->error); | |
359 | else | |
360 | return(MR_EXISTS); | |
361 | } | |
362 | status = name_to_id(name, tbl, &id); | |
363 | if (status == MR_NO_MATCH || id == *(int *)argv[vo->index - 1]) | |
364 | return(MR_EXISTS); | |
365 | else | |
366 | return(vo->error); | |
367 | } | |
368 | ||
369 | ||
370 | validate_type(argv, vo) | |
371 | char *argv[]; | |
372 | register struct valobj *vo; | |
373 | { | |
374 | EXEC SQL BEGIN DECLARE SECTION; | |
375 | char *typename; | |
376 | char *val; | |
377 | int cnt; | |
378 | EXEC SQL END DECLARE SECTION; | |
379 | register char *c; | |
380 | ||
381 | typename = vo->table; | |
382 | c = val = argv[vo->index]; | |
383 | while (*c) { | |
384 | if (illegalchars[*c++]) | |
385 | return(MR_BAD_CHAR); | |
386 | } | |
387 | ||
388 | /* uppercase type fields */ | |
389 | for (c = val; *c; c++) if (islower(*c)) *c = toupper(*c); | |
390 | ||
391 | EXEC SQL SELECT COUNT(trans) INTO :cnt FROM alias | |
392 | WHERE name = :typename AND type='TYPE' AND trans = :val; | |
393 | if (ingres_errno) return(mr_errcode); | |
394 | return (cnt ? MR_EXISTS : vo->error); | |
395 | } | |
396 | ||
397 | /* validate member or type-specific data field */ | |
398 | ||
399 | validate_typedata(q, argv, vo) | |
400 | register struct query *q; | |
401 | register char *argv[]; | |
402 | register struct valobj *vo; | |
403 | { | |
404 | EXEC SQL BEGIN DECLARE SECTION; | |
405 | char *name; | |
406 | char *field_type; | |
407 | char data_type[129]; | |
408 | int id; | |
409 | EXEC SQL END DECLARE SECTION; | |
410 | int status; | |
411 | register char *c; | |
412 | ||
413 | /* get named object */ | |
414 | name = argv[vo->index]; | |
415 | ||
416 | /* get field type string (known to be at index-1) */ | |
417 | field_type = argv[vo->index-1]; | |
418 | ||
419 | /* get corresponding data type associated with field type name */ | |
420 | EXEC SQL SELECT trans INTO :data_type FROM alias | |
421 | WHERE name = :field_type AND type='TYPEDATA'; | |
422 | if (ingres_errno) return(mr_errcode); | |
423 | if (sqlca.sqlerrd[2] != 1) return(MR_TYPE); | |
424 | ||
425 | /* now retrieve the record id corresponding to the named object */ | |
426 | if (dbg_index(data_type, ' ')) | |
427 | *dbg_index(data_type, ' ') = 0; | |
428 | if (!strcmp(data_type, "user")) { | |
429 | /* USER */ | |
430 | if (dbg_index(name, '@')) | |
431 | return(MR_USER); | |
432 | status = name_to_id(name, data_type, &id); | |
433 | if (status && (status == MR_NO_MATCH || status == MR_NOT_UNIQUE)) | |
434 | return(MR_USER); | |
435 | if (status) return(status); | |
436 | } else if (!strcmp(data_type, "list")) { | |
437 | /* LIST */ | |
438 | status = name_to_id(name, data_type, &id); | |
439 | if (status && status == MR_NOT_UNIQUE) | |
440 | return(MR_LIST); | |
441 | if (status == MR_NO_MATCH) { | |
442 | /* if idfield is non-zero, then if argv[0] matches the string | |
443 | * that we're trying to resolve, we should get the value of | |
444 | * numvalues.[idfield] for the id. | |
445 | */ | |
446 | if (vo->idfield && !strcmp(argv[0], argv[vo->index])) { | |
447 | set_next_object_id(q->validate->object_id, q->rtable, 0); | |
448 | name = vo->idfield; | |
449 | EXEC SQL REPEATED SELECT value INTO :id FROM numvalues | |
450 | WHERE name = :name; | |
451 | if (sqlca.sqlerrd[2] != 1) return(MR_LIST); | |
452 | } else | |
453 | return(MR_LIST); | |
454 | } else if (status) return(status); | |
455 | } else if (!strcmp(data_type, "machine")) { | |
456 | /* MACHINE */ | |
457 | for (c = name; *c; c++) if (islower(*c)) *c = toupper(*c); | |
458 | status = name_to_id(name, data_type, &id); | |
459 | if (status && (status == MR_NO_MATCH || status == MR_NOT_UNIQUE)) | |
460 | return(MR_MACHINE); | |
461 | if (status) return(status); | |
462 | } else if (!strcmp(data_type, "string")) { | |
463 | /* STRING */ | |
464 | status = name_to_id(name, data_type, &id); | |
465 | if (status && status == MR_NOT_UNIQUE) | |
466 | return(MR_STRING); | |
467 | if (status == MR_NO_MATCH) { | |
468 | if (q->type != APPEND && q->type != UPDATE) return(MR_STRING); | |
469 | id=add_string(name); | |
470 | cache_entry(name, "STRING", id); | |
471 | } else if (status) return(status); | |
472 | } else if (!strcmp(data_type, "none")) { | |
473 | id = 0; | |
474 | } else { | |
475 | return(MR_TYPE); | |
476 | } | |
477 | ||
478 | /* now set value in argv */ | |
479 | *(int *)argv[vo->index] = id; | |
480 | ||
481 | return (MR_EXISTS); | |
482 | } | |
483 | ||
484 | ||
485 | /* Lock the table named by the validation object */ | |
486 | ||
487 | lock_table(vo) | |
488 | struct valobj *vo; | |
489 | { | |
490 | sprintf(stmt_buf,"UPDATE %s SET modtime='now' WHERE %s.%s = 0", | |
491 | vo->table,vo->table,vo->idfield); | |
492 | EXEC SQL EXECUTE IMMEDIATE :stmt_buf; | |
493 | if (sqlca.sqlcode == 100){ | |
494 | fprintf(stderr,"readlock_table: no matching rows found for %s\n", | |
495 | stmt_buf); | |
496 | return(MR_INTERNAL); | |
497 | } | |
498 | if (ingres_errno) | |
499 | return(mr_errcode); | |
500 | if (sqlca.sqlerrd[2] != 1) | |
501 | return(vo->error); | |
502 | else | |
503 | return(MR_EXISTS); | |
504 | } | |
505 | ||
506 | /* | |
507 | * Get a read lock on the table by accessing the magic lock | |
508 | * record. Certain tables are constructed so that they contain | |
509 | * an id field whose value is zero and a modtime field. We | |
510 | * manipulate the modtime field of the id 0 record to effect | |
511 | * locking of the table | |
512 | */ | |
513 | ||
514 | readlock_table(vo) | |
515 | struct valobj *vo; | |
516 | { | |
517 | EXEC SQL BEGIN DECLARE SECTION; | |
518 | int id; | |
519 | char buf[256]; | |
520 | char *tbl, *idfield; | |
521 | EXEC SQL END DECLARE SECTION; | |
522 | ||
523 | tbl=vo->table; | |
524 | idfield=vo->idfield; | |
525 | sprintf(buf,"SELECT %s FROM %s WHERE %s.%s = 0", | |
526 | vo->idfield, vo->table, vo->table, vo->idfield); | |
527 | EXEC SQL PREPARE stmt FROM :buf; | |
528 | EXEC SQL DESCRIBE stmt INTO SQLDA; | |
529 | EXEC SQL DECLARE rcsr CURSOR FOR stmt; | |
530 | EXEC SQL OPEN rcsr; | |
531 | EXEC SQL FETCH rcsr USING DESCRIPTOR :SQLDA; | |
532 | /* Check for no matching rows found - this is | |
533 | * flagged as an internal error since the table should | |
534 | * have a magic lock record. | |
535 | */ | |
536 | if (sqlca.sqlcode == 100){ | |
537 | EXEC SQL CLOSE rcsr; | |
538 | com_err(whoami,0,"readlock_table: no matching rows found for %s\n", | |
539 | buf); | |
540 | return(MR_INTERNAL); | |
541 | } | |
542 | EXEC SQL CLOSE rcsr; | |
543 | if (ingres_errno) | |
544 | return(mr_errcode); | |
545 | if (sqlca.sqlcode) | |
546 | return(vo->error); | |
547 | return(MR_EXISTS); /* validate_fields expects us to return | |
548 | * this value if everything went okay | |
549 | */ | |
550 | } | |
551 | ||
552 | /* Check the database at startup time. For now this just resets the | |
553 | * inprogress flags that the DCM uses. | |
554 | */ | |
555 | ||
556 | sanity_check_database() | |
557 | { | |
558 | } | |
559 | ||
560 | ||
561 | /* Dynamic SQL support routines */ | |
562 | MR_SQLDA_T *mr_alloc_SQLDA() | |
563 | { | |
564 | MR_SQLDA_T *it; | |
565 | short *null_indicators; | |
566 | register int j; | |
567 | ||
568 | if((it=(MR_SQLDA_T *)malloc(sizeof(MR_SQLDA_T)))==NULL) { | |
569 | com_err(whoami, MR_NO_MEM, "setting up SQLDA"); | |
570 | exit(1); | |
571 | } | |
572 | ||
573 | if((null_indicators=(short *)calloc(QMAXARGS,sizeof(short)))==NULL) { | |
574 | com_err(whoami, MR_NO_MEM, "setting up SQLDA null indicators"); | |
575 | exit(1); | |
576 | } | |
577 | ||
578 | for(j=0; j<QMAXARGS; j++) { | |
579 | if((it->sqlvar[j].sqldata=(char *)malloc(sizeof(short)+ARGLEN))==NULL) { | |
580 | com_err(whoami, MR_NO_MEM, "setting up SQLDA variables"); | |
581 | exit(1); | |
582 | } | |
583 | it->sqlvar[j].sqllen=ARGLEN; | |
584 | it->sqlvar[j].sqlind=null_indicators+j; | |
585 | null_indicators[j]=0; | |
586 | } | |
587 | it->sqln=QMAXARGS; | |
588 | return it; | |
589 | } | |
590 | ||
591 | ||
592 | /* Use this after FETCH USING DESCRIPTOR one or more | |
593 | * result columns may contain NULLs. This routine is | |
594 | * not currently needed, since db/schema creates all | |
595 | * columns with a NOT NULL WITH DEFAULT clause. | |
596 | * | |
597 | * This is currently dead flesh, since no Moira columns | |
598 | * allow null values; all use default values. | |
599 | */ | |
600 | mr_fix_nulls_in_SQLDA(da) | |
601 | MR_SQLDA_T *da; | |
602 | { | |
603 | register IISQLVAR *var; | |
604 | register int j; | |
605 | int *intp; | |
606 | ||
607 | for(j=0, var=da->sqlvar; j<da->sqld; j++, var++) { | |
608 | switch(var->sqltype) { | |
609 | case -IISQ_CHA_TYPE: | |
610 | if(*var->sqlind) | |
611 | *var->sqldata='\0'; | |
612 | break; | |
613 | case -IISQ_INT_TYPE: | |
614 | if(*var->sqlind) { | |
615 | intp=(int *)var->sqldata; | |
616 | *intp=0; | |
617 | } | |
618 | break; | |
619 | } | |
620 | } | |
621 | } | |
622 | ||
623 | /* Convert normal Unix-style wildcards to SQL voodoo */ | |
624 | convert_wildcards(arg) | |
625 | char *arg; | |
626 | { | |
627 | static char buffer[ARGLEN]; | |
628 | register char *s, *d; | |
629 | ||
630 | for(d=buffer,s=arg;*s;s++) { | |
631 | switch(*s) { | |
632 | case '*': *d++='%'; *d++='%'; break; | |
633 | case '?': *d++='_'; break; | |
634 | case '_': | |
635 | case '[': | |
636 | case ']': *d++='*'; *d++ = *s; break; | |
637 | case '%': *d++='*'; *d++='%'; *d++='%'; break; | |
638 | default: *d++ = *s; break; | |
639 | } | |
640 | } | |
641 | *d='\0'; | |
642 | ||
643 | /* Copy back into argv */ | |
644 | strcpy(arg,buffer); | |
645 | ||
646 | return(MR_EXISTS); | |
647 | } | |
648 | ||
649 | /* This version includes uppercase conversion, for things like gmac. | |
650 | * This is necessary because "LIKE" doesn't work with "uppercase()". | |
651 | * Including it in a wildcard routine saves making two passes over | |
652 | * the argument string. | |
653 | */ | |
654 | convert_wildcards_uppercase(arg) | |
655 | char *arg; | |
656 | { | |
657 | static char buffer[ARGLEN]; | |
658 | register char *s, *d; | |
659 | ||
660 | for(d=buffer,s=arg;*s;s++) { | |
661 | switch(*s) { | |
662 | case '*': *d++='%'; *d++='%'; break; | |
663 | case '?': *d++='_'; break; | |
664 | case '_': | |
665 | case '[': | |
666 | case ']': *d++='*'; *d++ = *s; break; | |
667 | case '%': *d++='*'; *d++='%'; *d++='%'; break; | |
668 | default: *d++=toupper(*s); break; /* This is the only diff. */ | |
669 | } | |
670 | } | |
671 | *d='\0'; | |
672 | ||
673 | /* Copy back into argv */ | |
674 | strcpy(arg,buffer); | |
675 | ||
676 | return(MR_EXISTS); | |
677 | } | |
678 | ||
679 | ||
680 | /* Looks like it's time to build an abstraction barrier, Yogi */ | |
681 | mr_select_any(stmt) | |
682 | EXEC SQL BEGIN DECLARE SECTION; | |
683 | char *stmt; | |
684 | EXEC SQL END DECLARE SECTION; | |
685 | { | |
686 | int result=0; | |
687 | ||
688 | EXEC SQL PREPARE stmt FROM :stmt; | |
689 | EXEC SQL DESCRIBE stmt INTO :SQLDA; | |
690 | if(SQLDA->sqld==0) /* Not a SELECT */ | |
691 | return(MR_INTERNAL); | |
692 | EXEC SQL DECLARE csr CURSOR FOR stmt; | |
693 | EXEC SQL OPEN csr; | |
694 | EXEC SQL FETCH csr USING DESCRIPTOR :SQLDA; | |
695 | if(sqlca.sqlcode==0) | |
696 | result=MR_EXISTS; | |
697 | else if((sqlca.sqlcode<0) && mr_errcode) | |
698 | result=mr_errcode; | |
699 | else | |
700 | result=0; | |
701 | EXEC SQL CLOSE csr; | |
702 | return(result); | |
703 | } | |
704 | ||
705 | ||
706 | ||
707 | /* Adds a string to the string table. Returns the id number. | |
708 | * | |
709 | */ | |
710 | int add_string(name) | |
711 | EXEC SQL BEGIN DECLARE SECTION; | |
712 | char *name; | |
713 | EXEC SQL END DECLARE SECTION; | |
714 | { | |
715 | EXEC SQL BEGIN DECLARE SECTION; | |
716 | char buf[256]; | |
717 | int id; | |
718 | EXEC SQL END DECLARE SECTION; | |
719 | ||
720 | EXEC SQL SELECT value INTO :id FROM numvalues WHERE name = 'strings_id'; | |
721 | id++; | |
722 | EXEC SQL UPDATE numvalues SET value = :id WHERE name = 'strings_id'; | |
723 | ||
724 | /* Use sprintf to get around problem with doubled single quotes */ | |
725 | sprintf(buf,"INSERT INTO strings (string_id, string) VALUES (%d, '%s')",id,name); | |
726 | EXEC SQL EXECUTE IMMEDIATE :buf; | |
727 | ||
728 | return(id); | |
729 | } | |
730 |