| 1 | /* |
| 2 | * prepare.c |
| 3 | * |
| 4 | * $Id$ |
| 5 | * |
| 6 | * Prepare a query |
| 7 | * |
| 8 | * The iODBC driver manager. |
| 9 | * |
| 10 | * Copyright (C) 1995 by Ke Jin <kejin@empress.com> |
| 11 | * |
| 12 | * This library is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU Library General Public |
| 14 | * License as published by the Free Software Foundation; either |
| 15 | * version 2 of the License, or (at your option) any later version. |
| 16 | * |
| 17 | * This library is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 20 | * Library General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU Library General Public |
| 23 | * License along with this library; if not, write to the Free |
| 24 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 25 | */ |
| 26 | |
| 27 | #include "config.h" |
| 28 | |
| 29 | #include "isql.h" |
| 30 | #include "isqlext.h" |
| 31 | |
| 32 | #include "dlproc.h" |
| 33 | |
| 34 | #include "herr.h" |
| 35 | #include "henv.h" |
| 36 | #include "hdbc.h" |
| 37 | #include "hstmt.h" |
| 38 | |
| 39 | #include "itrace.h" |
| 40 | |
| 41 | #include <unistd.h> |
| 42 | |
| 43 | RETCODE SQL_API |
| 44 | SQLPrepare ( |
| 45 | HSTMT hstmt, |
| 46 | UCHAR FAR * szSqlStr, |
| 47 | SDWORD cbSqlStr) |
| 48 | { |
| 49 | STMT_t FAR *pstmt = (STMT_t *) hstmt; |
| 50 | |
| 51 | HPROC hproc = SQL_NULL_HPROC; |
| 52 | RETCODE retcode = SQL_SUCCESS; |
| 53 | int sqlstat = en_00000; |
| 54 | |
| 55 | if (hstmt == SQL_NULL_HSTMT || pstmt->hdbc == SQL_NULL_HDBC) |
| 56 | { |
| 57 | return SQL_INVALID_HANDLE; |
| 58 | } |
| 59 | |
| 60 | /* check state */ |
| 61 | if (pstmt->asyn_on == en_NullProc) |
| 62 | { |
| 63 | /* not on asyn state */ |
| 64 | switch (pstmt->state) |
| 65 | { |
| 66 | case en_stmt_fetched: |
| 67 | case en_stmt_xfetched: |
| 68 | sqlstat = en_24000; |
| 69 | break; |
| 70 | |
| 71 | case en_stmt_needdata: |
| 72 | case en_stmt_mustput: |
| 73 | case en_stmt_canput: |
| 74 | sqlstat = en_S1010; |
| 75 | break; |
| 76 | |
| 77 | default: |
| 78 | break; |
| 79 | } |
| 80 | } |
| 81 | else if (pstmt->asyn_on != en_Prepare) |
| 82 | { |
| 83 | /* asyn on other */ |
| 84 | sqlstat = en_S1010; |
| 85 | } |
| 86 | |
| 87 | if (sqlstat != en_00000) |
| 88 | { |
| 89 | PUSHSQLERR (pstmt->herr, sqlstat); |
| 90 | |
| 91 | return SQL_ERROR; |
| 92 | } |
| 93 | |
| 94 | if (szSqlStr == NULL) |
| 95 | { |
| 96 | PUSHSQLERR (pstmt->herr, en_S1009); |
| 97 | |
| 98 | return SQL_ERROR; |
| 99 | } |
| 100 | |
| 101 | if (cbSqlStr < 0 && cbSqlStr != SQL_NTS) |
| 102 | { |
| 103 | PUSHSQLERR (pstmt->herr, en_S1090); |
| 104 | |
| 105 | return SQL_ERROR; |
| 106 | } |
| 107 | |
| 108 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_Prepare); |
| 109 | |
| 110 | if (hproc == SQL_NULL_HPROC) |
| 111 | { |
| 112 | PUSHSQLERR (pstmt->herr, en_IM001); |
| 113 | return SQL_ERROR; |
| 114 | } |
| 115 | |
| 116 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_Prepare, |
| 117 | (pstmt->dhstmt, szSqlStr, cbSqlStr)) |
| 118 | |
| 119 | /* stmt state transition */ |
| 120 | if (pstmt->asyn_on == en_Prepare) |
| 121 | { |
| 122 | switch (retcode) |
| 123 | { |
| 124 | case SQL_SUCCESS: |
| 125 | case SQL_SUCCESS_WITH_INFO: |
| 126 | case SQL_ERROR: |
| 127 | pstmt->asyn_on = en_NullProc; |
| 128 | return retcode; |
| 129 | |
| 130 | case SQL_STILL_EXECUTING: |
| 131 | default: |
| 132 | return retcode; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | switch (retcode) |
| 137 | { |
| 138 | case SQL_STILL_EXECUTING: |
| 139 | pstmt->asyn_on = en_Prepare; |
| 140 | break; |
| 141 | |
| 142 | case SQL_SUCCESS: |
| 143 | case SQL_SUCCESS_WITH_INFO: |
| 144 | pstmt->state = en_stmt_prepared; |
| 145 | pstmt->prep_state = 1; |
| 146 | break; |
| 147 | |
| 148 | case SQL_ERROR: |
| 149 | switch (pstmt->state) |
| 150 | { |
| 151 | case en_stmt_prepared: |
| 152 | case en_stmt_executed: |
| 153 | pstmt->state = en_stmt_allocated; |
| 154 | pstmt->prep_state = 0; |
| 155 | break; |
| 156 | |
| 157 | default: |
| 158 | break; |
| 159 | } |
| 160 | |
| 161 | default: |
| 162 | break; |
| 163 | } |
| 164 | |
| 165 | return retcode; |
| 166 | } |
| 167 | |
| 168 | |
| 169 | RETCODE SQL_API |
| 170 | SQLSetCursorName ( |
| 171 | HSTMT hstmt, |
| 172 | UCHAR FAR * szCursor, |
| 173 | SWORD cbCursor) |
| 174 | { |
| 175 | STMT_t FAR *pstmt = (STMT_t *) hstmt; |
| 176 | HPROC hproc = SQL_NULL_HPROC; |
| 177 | |
| 178 | RETCODE retcode = SQL_SUCCESS; |
| 179 | int sqlstat = en_00000; |
| 180 | |
| 181 | if (hstmt == SQL_NULL_HSTMT || pstmt->hdbc == SQL_NULL_HDBC) |
| 182 | { |
| 183 | return SQL_INVALID_HANDLE; |
| 184 | } |
| 185 | |
| 186 | if (szCursor == NULL) |
| 187 | { |
| 188 | PUSHSQLERR (pstmt->herr, en_S1009); |
| 189 | |
| 190 | return SQL_ERROR; |
| 191 | } |
| 192 | |
| 193 | if (cbCursor < 0 && cbCursor != SQL_NTS) |
| 194 | { |
| 195 | PUSHSQLERR (pstmt->herr, en_S1090); |
| 196 | |
| 197 | return SQL_ERROR; |
| 198 | } |
| 199 | |
| 200 | /* check state */ |
| 201 | if (pstmt->asyn_on != en_NullProc) |
| 202 | { |
| 203 | sqlstat = en_S1010; |
| 204 | } |
| 205 | else |
| 206 | { |
| 207 | switch (pstmt->state) |
| 208 | { |
| 209 | case en_stmt_executed: |
| 210 | case en_stmt_cursoropen: |
| 211 | case en_stmt_fetched: |
| 212 | case en_stmt_xfetched: |
| 213 | sqlstat = en_24000; |
| 214 | break; |
| 215 | |
| 216 | case en_stmt_needdata: |
| 217 | case en_stmt_mustput: |
| 218 | case en_stmt_canput: |
| 219 | sqlstat = en_S1010; |
| 220 | break; |
| 221 | |
| 222 | default: |
| 223 | break; |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | if (sqlstat != en_00000) |
| 228 | { |
| 229 | PUSHSQLERR (pstmt->herr, sqlstat); |
| 230 | |
| 231 | return SQL_ERROR; |
| 232 | } |
| 233 | |
| 234 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_SetCursorName); |
| 235 | |
| 236 | if (hproc == SQL_NULL_HPROC) |
| 237 | { |
| 238 | PUSHSQLERR (pstmt->herr, en_IM001); |
| 239 | |
| 240 | return SQL_ERROR; |
| 241 | } |
| 242 | |
| 243 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_SetCursorName, |
| 244 | (pstmt->dhstmt, szCursor, cbCursor)) |
| 245 | |
| 246 | if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) |
| 247 | { |
| 248 | pstmt->cursor_state = en_stmt_cursor_named; |
| 249 | } |
| 250 | |
| 251 | return retcode; |
| 252 | } |
| 253 | |
| 254 | |
| 255 | RETCODE SQL_API |
| 256 | SQLBindParameter ( |
| 257 | HSTMT hstmt, |
| 258 | UWORD ipar, |
| 259 | SWORD fParamType, |
| 260 | SWORD fCType, |
| 261 | SWORD fSqlType, |
| 262 | UDWORD cbColDef, |
| 263 | SWORD ibScale, |
| 264 | PTR rgbValue, |
| 265 | SDWORD cbValueMax, |
| 266 | SDWORD FAR * pcbValue) |
| 267 | { |
| 268 | STMT_t FAR *pstmt = (STMT_t FAR *) hstmt; |
| 269 | HPROC hproc = SQL_NULL_HPROC; |
| 270 | |
| 271 | int sqlstat = en_00000; |
| 272 | RETCODE retcode = SQL_SUCCESS; |
| 273 | |
| 274 | if (hstmt == SQL_NULL_HSTMT || pstmt->hdbc == SQL_NULL_HDBC) |
| 275 | { |
| 276 | return SQL_INVALID_HANDLE; |
| 277 | } |
| 278 | |
| 279 | /* check param */ |
| 280 | if (fSqlType > SQL_TYPE_MAX || |
| 281 | (fSqlType < SQL_TYPE_MIN && fSqlType > SQL_TYPE_DRIVER_START)) |
| 282 | /* Note: SQL_TYPE_DRIVER_START is a nagtive number |
| 283 | * So, we use ">" */ |
| 284 | { |
| 285 | sqlstat = en_S1004; |
| 286 | } |
| 287 | else if (ipar < 1) |
| 288 | { |
| 289 | sqlstat = en_S1093; |
| 290 | } |
| 291 | else if ((rgbValue == NULL && pcbValue == NULL) |
| 292 | && fParamType != SQL_PARAM_OUTPUT) |
| 293 | { |
| 294 | sqlstat = en_S1009; |
| 295 | /* This means, I allow output to nowhere |
| 296 | * (i.e. * junk output result). But I can't |
| 297 | * allow input from nowhere. |
| 298 | */ |
| 299 | } |
| 300 | /********** |
| 301 | else if( cbValueMax < 0L && cbValueMax != SQL_SETPARAM_VALUE_MAX ) |
| 302 | { |
| 303 | sqlstat = en_S1090; |
| 304 | } |
| 305 | **********/ |
| 306 | else if (fParamType != SQL_PARAM_INPUT |
| 307 | && fParamType != SQL_PARAM_OUTPUT |
| 308 | && fParamType != SQL_PARAM_INPUT_OUTPUT) |
| 309 | { |
| 310 | sqlstat = en_S1105; |
| 311 | } |
| 312 | else |
| 313 | { |
| 314 | switch (fCType) |
| 315 | { |
| 316 | case SQL_C_DEFAULT: |
| 317 | case SQL_C_CHAR: |
| 318 | case SQL_C_BINARY: |
| 319 | case SQL_C_BIT: |
| 320 | case SQL_C_TINYINT: |
| 321 | case SQL_C_STINYINT: |
| 322 | case SQL_C_UTINYINT: |
| 323 | case SQL_C_SHORT: |
| 324 | case SQL_C_SSHORT: |
| 325 | case SQL_C_USHORT: |
| 326 | case SQL_C_LONG: |
| 327 | case SQL_C_SLONG: |
| 328 | case SQL_C_ULONG: |
| 329 | case SQL_C_FLOAT: |
| 330 | case SQL_C_DOUBLE: |
| 331 | case SQL_C_DATE: |
| 332 | case SQL_C_TIME: |
| 333 | case SQL_C_TIMESTAMP: |
| 334 | break; |
| 335 | |
| 336 | default: |
| 337 | sqlstat = en_S1003; |
| 338 | break; |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | if (sqlstat != en_00000) |
| 343 | { |
| 344 | PUSHSQLERR (pstmt->herr, sqlstat); |
| 345 | |
| 346 | return SQL_ERROR; |
| 347 | } |
| 348 | |
| 349 | /* check state */ |
| 350 | if (pstmt->state >= en_stmt_needdata || pstmt->asyn_on != en_NullProc) |
| 351 | { |
| 352 | PUSHSQLERR (pstmt->herr, en_S1010); |
| 353 | |
| 354 | retcode = SQL_ERROR; |
| 355 | } |
| 356 | |
| 357 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_BindParameter); |
| 358 | |
| 359 | if (hproc == SQL_NULL_HPROC) |
| 360 | { |
| 361 | PUSHSQLERR (pstmt->herr, en_IM001); |
| 362 | |
| 363 | return SQL_ERROR; |
| 364 | } |
| 365 | |
| 366 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_BindParameter, |
| 367 | (pstmt->dhstmt, ipar, fParamType, fCType, fSqlType, cbColDef, |
| 368 | ibScale, rgbValue, cbValueMax, pcbValue)) |
| 369 | |
| 370 | return retcode; |
| 371 | } |
| 372 | |
| 373 | |
| 374 | RETCODE SQL_API |
| 375 | SQLParamOptions ( |
| 376 | HSTMT hstmt, |
| 377 | UDWORD crow, |
| 378 | UDWORD FAR * pirow) |
| 379 | { |
| 380 | STMT_t FAR *pstmt = (STMT_t FAR *) hstmt; |
| 381 | HPROC hproc; |
| 382 | RETCODE retcode; |
| 383 | |
| 384 | if (hstmt == SQL_NULL_HSTMT || pstmt->hdbc == SQL_NULL_HDBC) |
| 385 | { |
| 386 | return SQL_INVALID_HANDLE; |
| 387 | } |
| 388 | |
| 389 | if (crow == (UDWORD) 0UL) |
| 390 | { |
| 391 | PUSHSQLERR (pstmt->herr, en_S1107); |
| 392 | |
| 393 | return SQL_ERROR; |
| 394 | } |
| 395 | |
| 396 | if (pstmt->state >= en_stmt_needdata || pstmt->asyn_on != en_NullProc) |
| 397 | { |
| 398 | PUSHSQLERR (pstmt->herr, en_S1010); |
| 399 | |
| 400 | return SQL_ERROR; |
| 401 | } |
| 402 | |
| 403 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_ParamOptions); |
| 404 | |
| 405 | if (hproc == SQL_NULL_HPROC) |
| 406 | { |
| 407 | PUSHSQLERR (pstmt->herr, en_IM001); |
| 408 | |
| 409 | return SQL_ERROR; |
| 410 | } |
| 411 | |
| 412 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_ParamOptions, |
| 413 | (pstmt->dhstmt, crow, pirow)) |
| 414 | |
| 415 | return retcode; |
| 416 | } |
| 417 | |
| 418 | |
| 419 | RETCODE SQL_API |
| 420 | SQLSetScrollOptions ( |
| 421 | HSTMT hstmt, |
| 422 | UWORD fConcurrency, |
| 423 | SDWORD crowKeyset, |
| 424 | UWORD crowRowset) |
| 425 | { |
| 426 | STMT_t FAR *pstmt = (STMT_t FAR *) hstmt; |
| 427 | HPROC hproc; |
| 428 | int sqlstat = en_00000; |
| 429 | RETCODE retcode; |
| 430 | |
| 431 | if (hstmt == SQL_NULL_HSTMT || pstmt->hdbc == SQL_NULL_HDBC) |
| 432 | { |
| 433 | return SQL_INVALID_HANDLE; |
| 434 | } |
| 435 | |
| 436 | for (;;) |
| 437 | { |
| 438 | if (crowRowset == (UWORD) 0) |
| 439 | { |
| 440 | sqlstat = en_S1107; |
| 441 | break; |
| 442 | } |
| 443 | |
| 444 | if (crowKeyset > (SDWORD) 0L && crowKeyset < (SDWORD) crowRowset) |
| 445 | { |
| 446 | sqlstat = en_S1107; |
| 447 | break; |
| 448 | } |
| 449 | |
| 450 | if (crowKeyset < 1) |
| 451 | { |
| 452 | if (crowKeyset != SQL_SCROLL_FORWARD_ONLY |
| 453 | && crowKeyset != SQL_SCROLL_STATIC |
| 454 | && crowKeyset != SQL_SCROLL_KEYSET_DRIVEN |
| 455 | && crowKeyset != SQL_SCROLL_DYNAMIC) |
| 456 | { |
| 457 | sqlstat = en_S1107; |
| 458 | break; |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | if (fConcurrency != SQL_CONCUR_READ_ONLY |
| 463 | && fConcurrency != SQL_CONCUR_LOCK |
| 464 | && fConcurrency != SQL_CONCUR_ROWVER |
| 465 | && fConcurrency != SQL_CONCUR_VALUES) |
| 466 | { |
| 467 | sqlstat = en_S1108; |
| 468 | break; |
| 469 | } |
| 470 | |
| 471 | if (pstmt->state != en_stmt_allocated) |
| 472 | { |
| 473 | sqlstat = en_S1010; |
| 474 | break; |
| 475 | } |
| 476 | |
| 477 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_SetScrollOptions); |
| 478 | |
| 479 | if (hproc == SQL_NULL_HPROC) |
| 480 | { |
| 481 | sqlstat = en_IM001; |
| 482 | break; |
| 483 | } |
| 484 | |
| 485 | sqlstat = en_00000; |
| 486 | if (1) /* turn off solaris warning message */ |
| 487 | break; |
| 488 | } |
| 489 | |
| 490 | if (sqlstat != en_00000) |
| 491 | { |
| 492 | PUSHSQLERR (pstmt->herr, sqlstat); |
| 493 | |
| 494 | return SQL_ERROR; |
| 495 | } |
| 496 | |
| 497 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_SetScrollOptions, |
| 498 | (pstmt->dhstmt, fConcurrency, crowKeyset, crowRowset)) |
| 499 | |
| 500 | return retcode; |
| 501 | } |
| 502 | |
| 503 | |
| 504 | RETCODE SQL_API |
| 505 | SQLSetParam ( |
| 506 | HSTMT hstmt, |
| 507 | UWORD ipar, |
| 508 | SWORD fCType, |
| 509 | SWORD fSqlType, |
| 510 | UDWORD cbColDef, |
| 511 | SWORD ibScale, |
| 512 | PTR rgbValue, |
| 513 | SDWORD FAR * pcbValue) |
| 514 | { |
| 515 | return SQLBindParameter (hstmt, |
| 516 | ipar, |
| 517 | (SWORD) SQL_PARAM_INPUT_OUTPUT, |
| 518 | fCType, |
| 519 | fSqlType, |
| 520 | cbColDef, |
| 521 | ibScale, |
| 522 | rgbValue, |
| 523 | SQL_SETPARAM_VALUE_MAX, |
| 524 | pcbValue); |
| 525 | } |