| 1 | /* |
| 2 | * result.c |
| 3 | * |
| 4 | * $Id$ |
| 5 | * |
| 6 | * Prepare for getting query result |
| 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 | RETCODE SQL_API |
| 42 | SQLBindCol ( |
| 43 | HSTMT hstmt, |
| 44 | UWORD icol, |
| 45 | SWORD fCType, |
| 46 | PTR rgbValue, |
| 47 | SDWORD cbValueMax, |
| 48 | SDWORD FAR * pcbValue) |
| 49 | { |
| 50 | STMT_t FAR *pstmt = (STMT_t FAR *) hstmt; |
| 51 | HPROC hproc = SQL_NULL_HPROC; |
| 52 | RETCODE retcode; |
| 53 | |
| 54 | if (hstmt == SQL_NULL_HSTMT || pstmt->hdbc == SQL_NULL_HDBC) |
| 55 | { |
| 56 | return SQL_INVALID_HANDLE; |
| 57 | } |
| 58 | |
| 59 | /* check argument */ |
| 60 | switch (fCType) |
| 61 | { |
| 62 | case SQL_C_DEFAULT: |
| 63 | case SQL_C_CHAR: |
| 64 | case SQL_C_BINARY: |
| 65 | case SQL_C_BIT: |
| 66 | case SQL_C_TINYINT: |
| 67 | case SQL_C_STINYINT: |
| 68 | case SQL_C_UTINYINT: |
| 69 | case SQL_C_SHORT: |
| 70 | case SQL_C_SSHORT: |
| 71 | case SQL_C_USHORT: |
| 72 | case SQL_C_LONG: |
| 73 | case SQL_C_SLONG: |
| 74 | case SQL_C_ULONG: |
| 75 | case SQL_C_FLOAT: |
| 76 | case SQL_C_DOUBLE: |
| 77 | case SQL_C_DATE: |
| 78 | case SQL_C_TIME: |
| 79 | case SQL_C_TIMESTAMP: |
| 80 | break; |
| 81 | |
| 82 | default: |
| 83 | PUSHSQLERR (pstmt->herr, en_S1003); |
| 84 | return SQL_ERROR; |
| 85 | } |
| 86 | |
| 87 | if (cbValueMax < 0) |
| 88 | { |
| 89 | PUSHSQLERR (pstmt->herr, en_S1090); |
| 90 | |
| 91 | return SQL_ERROR; |
| 92 | } |
| 93 | |
| 94 | /* check state */ |
| 95 | if (pstmt->state > en_stmt_needdata || pstmt->asyn_on != en_NullProc) |
| 96 | { |
| 97 | PUSHSQLERR (pstmt->herr, en_S1010); |
| 98 | return SQL_ERROR; |
| 99 | } |
| 100 | |
| 101 | /* call driver's function */ |
| 102 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_BindCol); |
| 103 | |
| 104 | if (hproc == SQL_NULL_HPROC) |
| 105 | { |
| 106 | PUSHSQLERR (pstmt->herr, en_IM001); |
| 107 | |
| 108 | return SQL_ERROR; |
| 109 | } |
| 110 | |
| 111 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_BindCol, |
| 112 | (pstmt->dhstmt, icol, fCType, rgbValue, cbValueMax, pcbValue)) |
| 113 | |
| 114 | return retcode; |
| 115 | } |
| 116 | |
| 117 | |
| 118 | RETCODE SQL_API |
| 119 | SQLGetCursorName ( |
| 120 | HSTMT hstmt, |
| 121 | UCHAR FAR * szCursor, |
| 122 | SWORD cbCursorMax, |
| 123 | SWORD FAR * pcbCursor) |
| 124 | { |
| 125 | STMT_t FAR *pstmt = (STMT_t FAR *) hstmt; |
| 126 | HPROC hproc; |
| 127 | RETCODE retcode; |
| 128 | |
| 129 | if (hstmt == SQL_NULL_HSTMT || pstmt->hdbc == SQL_NULL_HDBC) |
| 130 | { |
| 131 | return SQL_INVALID_HANDLE; |
| 132 | } |
| 133 | |
| 134 | /* check argument */ |
| 135 | if (cbCursorMax < (SWORD) 0) |
| 136 | { |
| 137 | PUSHSQLERR (pstmt->herr, en_S1090); |
| 138 | |
| 139 | return SQL_ERROR; |
| 140 | } |
| 141 | |
| 142 | /* check state */ |
| 143 | if (pstmt->state >= en_stmt_needdata || pstmt->asyn_on != en_NullProc) |
| 144 | { |
| 145 | PUSHSQLERR (pstmt->herr, en_S1010); |
| 146 | |
| 147 | return SQL_ERROR; |
| 148 | } |
| 149 | |
| 150 | if (pstmt->state < en_stmt_cursoropen |
| 151 | && pstmt->cursor_state == en_stmt_cursor_no) |
| 152 | { |
| 153 | PUSHSQLERR (pstmt->herr, en_S1015); |
| 154 | |
| 155 | return SQL_ERROR; |
| 156 | } |
| 157 | |
| 158 | /* call driver's function */ |
| 159 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_GetCursorName); |
| 160 | |
| 161 | if (hproc == SQL_NULL_HPROC) |
| 162 | { |
| 163 | PUSHSQLERR (pstmt->herr, en_IM001); |
| 164 | |
| 165 | return SQL_ERROR; |
| 166 | } |
| 167 | |
| 168 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_GetCursorName, |
| 169 | (pstmt->dhstmt, szCursor, cbCursorMax, pcbCursor)) |
| 170 | |
| 171 | return retcode; |
| 172 | } |
| 173 | |
| 174 | |
| 175 | RETCODE SQL_API |
| 176 | SQLRowCount ( |
| 177 | HSTMT hstmt, |
| 178 | SDWORD FAR * pcrow) |
| 179 | { |
| 180 | STMT_t FAR *pstmt = (STMT_t FAR *) hstmt; |
| 181 | HPROC hproc; |
| 182 | RETCODE retcode; |
| 183 | |
| 184 | if (hstmt == SQL_NULL_HSTMT || pstmt->hdbc == SQL_NULL_HDBC) |
| 185 | { |
| 186 | return SQL_INVALID_HANDLE; |
| 187 | } |
| 188 | |
| 189 | /* check state */ |
| 190 | if (pstmt->state >= en_stmt_needdata |
| 191 | || pstmt->state <= en_stmt_prepared |
| 192 | || pstmt->asyn_on != en_NullProc) |
| 193 | { |
| 194 | PUSHSQLERR (pstmt->herr, en_S1010); |
| 195 | |
| 196 | return SQL_ERROR; |
| 197 | } |
| 198 | |
| 199 | /* call driver */ |
| 200 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_RowCount); |
| 201 | |
| 202 | if (hproc == SQL_NULL_HPROC) |
| 203 | { |
| 204 | PUSHSQLERR (pstmt->herr, en_IM001); |
| 205 | |
| 206 | return SQL_ERROR; |
| 207 | } |
| 208 | |
| 209 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_RowCount, |
| 210 | (pstmt->dhstmt, pcrow)) |
| 211 | |
| 212 | return retcode; |
| 213 | } |
| 214 | |
| 215 | |
| 216 | RETCODE SQL_API |
| 217 | SQLNumResultCols ( |
| 218 | HSTMT hstmt, |
| 219 | SWORD FAR * pccol) |
| 220 | { |
| 221 | STMT_t FAR *pstmt = (STMT_t FAR *) hstmt; |
| 222 | HPROC hproc; |
| 223 | RETCODE retcode; |
| 224 | SWORD ccol; |
| 225 | |
| 226 | if (hstmt == SQL_NULL_HSTMT || pstmt->hdbc == SQL_NULL_HDBC) |
| 227 | { |
| 228 | return SQL_INVALID_HANDLE; |
| 229 | } |
| 230 | |
| 231 | /* check state */ |
| 232 | if (pstmt->asyn_on == en_NullProc) |
| 233 | { |
| 234 | if (pstmt->state == en_stmt_allocated |
| 235 | || pstmt->state >= en_stmt_needdata) |
| 236 | { |
| 237 | PUSHSQLERR (pstmt->herr, en_S1010); |
| 238 | return SQL_ERROR; |
| 239 | } |
| 240 | } |
| 241 | else if (pstmt->asyn_on != en_NumResultCols) |
| 242 | { |
| 243 | PUSHSQLERR (pstmt->herr, en_S1010); |
| 244 | |
| 245 | return SQL_ERROR; |
| 246 | } |
| 247 | |
| 248 | /* call driver */ |
| 249 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_NumResultCols); |
| 250 | |
| 251 | if (hproc == SQL_NULL_HPROC) |
| 252 | { |
| 253 | PUSHSQLERR (pstmt->herr, en_IM001); |
| 254 | |
| 255 | return SQL_ERROR; |
| 256 | } |
| 257 | |
| 258 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_NumResultCols, |
| 259 | (pstmt->dhstmt, &ccol)) |
| 260 | |
| 261 | /* state transition */ |
| 262 | if (pstmt->asyn_on == en_NumResultCols) |
| 263 | { |
| 264 | switch (retcode) |
| 265 | { |
| 266 | case SQL_SUCCESS: |
| 267 | case SQL_SUCCESS_WITH_INFO: |
| 268 | case SQL_ERROR: |
| 269 | pstmt->asyn_on = en_NullProc; |
| 270 | |
| 271 | case SQL_STILL_EXECUTING: |
| 272 | default: |
| 273 | break; |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | switch (retcode) |
| 278 | { |
| 279 | case SQL_SUCCESS: |
| 280 | case SQL_SUCCESS_WITH_INFO: |
| 281 | break; |
| 282 | |
| 283 | case SQL_STILL_EXECUTING: |
| 284 | ccol = 0; |
| 285 | pstmt->asyn_on = en_NumResultCols; |
| 286 | break; |
| 287 | |
| 288 | default: |
| 289 | ccol = 0; |
| 290 | break; |
| 291 | } |
| 292 | |
| 293 | if (pccol) |
| 294 | { |
| 295 | *pccol = ccol; |
| 296 | } |
| 297 | |
| 298 | return retcode; |
| 299 | } |
| 300 | |
| 301 | |
| 302 | RETCODE SQL_API |
| 303 | SQLDescribeCol ( |
| 304 | HSTMT hstmt, |
| 305 | UWORD icol, |
| 306 | UCHAR FAR * szColName, |
| 307 | SWORD cbColNameMax, |
| 308 | SWORD FAR * pcbColName, |
| 309 | SWORD FAR * pfSqlType, |
| 310 | UDWORD FAR * pcbColDef, |
| 311 | SWORD FAR * pibScale, |
| 312 | SWORD FAR * pfNullable) |
| 313 | { |
| 314 | STMT_t FAR *pstmt = (STMT_t FAR *) hstmt; |
| 315 | HPROC hproc; |
| 316 | RETCODE retcode; |
| 317 | int sqlstat = en_00000; |
| 318 | |
| 319 | if (hstmt == SQL_NULL_HSTMT |
| 320 | || pstmt->hdbc == SQL_NULL_HDBC) |
| 321 | { |
| 322 | return SQL_INVALID_HANDLE; |
| 323 | } |
| 324 | |
| 325 | /* check arguments */ |
| 326 | if (icol == 0) |
| 327 | { |
| 328 | sqlstat = en_S1002; |
| 329 | } |
| 330 | else if (cbColNameMax < 0) |
| 331 | { |
| 332 | sqlstat = en_S1090; |
| 333 | } |
| 334 | |
| 335 | if (sqlstat != en_00000) |
| 336 | { |
| 337 | PUSHSQLERR (pstmt->herr, sqlstat); |
| 338 | |
| 339 | return SQL_ERROR; |
| 340 | } |
| 341 | |
| 342 | /* check state */ |
| 343 | if (pstmt->asyn_on == en_NullProc) |
| 344 | { |
| 345 | if (pstmt->asyn_on == en_stmt_allocated |
| 346 | || pstmt->asyn_on >= en_stmt_needdata) |
| 347 | { |
| 348 | sqlstat = en_S1010; |
| 349 | } |
| 350 | } |
| 351 | else if (pstmt->asyn_on != en_DescribeCol) |
| 352 | { |
| 353 | sqlstat = en_S1010; |
| 354 | } |
| 355 | |
| 356 | if (sqlstat != en_00000) |
| 357 | { |
| 358 | PUSHSQLERR (pstmt->herr, sqlstat); |
| 359 | |
| 360 | return SQL_ERROR; |
| 361 | } |
| 362 | |
| 363 | /* call driver */ |
| 364 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_DescribeCol); |
| 365 | |
| 366 | if (hproc == SQL_NULL_HPROC) |
| 367 | { |
| 368 | PUSHSQLERR (pstmt->herr, en_IM001); |
| 369 | |
| 370 | return SQL_ERROR; |
| 371 | } |
| 372 | |
| 373 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_DescribeCol, |
| 374 | (pstmt->dhstmt, icol, szColName, cbColNameMax, pcbColName, |
| 375 | pfSqlType, pcbColDef, pibScale, pfNullable)) |
| 376 | |
| 377 | /* state transition */ |
| 378 | if (pstmt->asyn_on == en_DescribeCol) |
| 379 | { |
| 380 | switch (retcode) |
| 381 | { |
| 382 | case SQL_SUCCESS: |
| 383 | case SQL_SUCCESS_WITH_INFO: |
| 384 | case SQL_ERROR: |
| 385 | pstmt->asyn_on = en_NullProc; |
| 386 | break; |
| 387 | |
| 388 | default: |
| 389 | return retcode; |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | switch (pstmt->state) |
| 394 | { |
| 395 | case en_stmt_prepared: |
| 396 | case en_stmt_cursoropen: |
| 397 | case en_stmt_fetched: |
| 398 | case en_stmt_xfetched: |
| 399 | if (retcode == SQL_STILL_EXECUTING) |
| 400 | { |
| 401 | pstmt->asyn_on = en_DescribeCol; |
| 402 | } |
| 403 | break; |
| 404 | |
| 405 | default: |
| 406 | break; |
| 407 | } |
| 408 | |
| 409 | return retcode; |
| 410 | } |
| 411 | |
| 412 | |
| 413 | RETCODE SQL_API |
| 414 | SQLColAttributes ( |
| 415 | HSTMT hstmt, |
| 416 | UWORD icol, |
| 417 | UWORD fDescType, |
| 418 | PTR rgbDesc, |
| 419 | SWORD cbDescMax, |
| 420 | SWORD FAR * pcbDesc, |
| 421 | SDWORD FAR * pfDesc) |
| 422 | { |
| 423 | STMT_t FAR *pstmt = (STMT_t FAR *) hstmt; |
| 424 | HPROC hproc; |
| 425 | RETCODE retcode; |
| 426 | int sqlstat = en_00000; |
| 427 | |
| 428 | if (hstmt == SQL_NULL_HSTMT || pstmt->hdbc == SQL_NULL_HDBC) |
| 429 | { |
| 430 | return SQL_INVALID_HANDLE; |
| 431 | } |
| 432 | |
| 433 | /* check arguments */ |
| 434 | if (icol == 0 && fDescType != SQL_COLUMN_COUNT) |
| 435 | { |
| 436 | sqlstat = en_S1002; |
| 437 | } |
| 438 | else if (cbDescMax < 0) |
| 439 | { |
| 440 | sqlstat = en_S1090; |
| 441 | } |
| 442 | else if ( /* fDescType < SQL_COLATT_OPT_MIN || *//* turnoff warning */ |
| 443 | (fDescType > SQL_COLATT_OPT_MAX |
| 444 | && fDescType < SQL_COLUMN_DRIVER_START)) |
| 445 | { |
| 446 | sqlstat = en_S1091; |
| 447 | } |
| 448 | |
| 449 | if (sqlstat != en_00000) |
| 450 | { |
| 451 | PUSHSQLERR (pstmt->herr, sqlstat); |
| 452 | |
| 453 | return SQL_ERROR; |
| 454 | } |
| 455 | |
| 456 | /* check state */ |
| 457 | if (pstmt->asyn_on == en_NullProc) |
| 458 | { |
| 459 | if (pstmt->asyn_on == en_stmt_allocated |
| 460 | || pstmt->asyn_on >= en_stmt_needdata) |
| 461 | { |
| 462 | sqlstat = en_S1010; |
| 463 | } |
| 464 | } |
| 465 | else if (pstmt->asyn_on != en_ColAttributes) |
| 466 | { |
| 467 | sqlstat = en_S1010; |
| 468 | } |
| 469 | |
| 470 | if (sqlstat != en_00000) |
| 471 | { |
| 472 | PUSHSQLERR (pstmt->herr, sqlstat); |
| 473 | |
| 474 | return SQL_ERROR; |
| 475 | } |
| 476 | |
| 477 | /* call driver */ |
| 478 | hproc = _iodbcdm_getproc (pstmt->hdbc, en_ColAttributes); |
| 479 | |
| 480 | if (hproc == SQL_NULL_HPROC) |
| 481 | { |
| 482 | PUSHSQLERR (pstmt->herr, en_IM001); |
| 483 | |
| 484 | return SQL_ERROR; |
| 485 | } |
| 486 | |
| 487 | CALL_DRIVER (pstmt->hdbc, retcode, hproc, en_ColAttributes, |
| 488 | (pstmt->dhstmt, icol, fDescType, rgbDesc, cbDescMax, pcbDesc, pfDesc)) |
| 489 | |
| 490 | /* state transition */ |
| 491 | if (pstmt->asyn_on == en_ColAttributes) |
| 492 | { |
| 493 | switch (retcode) |
| 494 | { |
| 495 | case SQL_SUCCESS: |
| 496 | case SQL_SUCCESS_WITH_INFO: |
| 497 | case SQL_ERROR: |
| 498 | pstmt->asyn_on = en_NullProc; |
| 499 | break; |
| 500 | |
| 501 | default: |
| 502 | return retcode; |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | switch (pstmt->state) |
| 507 | { |
| 508 | case en_stmt_prepared: |
| 509 | case en_stmt_cursoropen: |
| 510 | case en_stmt_fetched: |
| 511 | case en_stmt_xfetched: |
| 512 | if (retcode == SQL_STILL_EXECUTING) |
| 513 | { |
| 514 | pstmt->asyn_on = en_ColAttributes; |
| 515 | } |
| 516 | break; |
| 517 | |
| 518 | default: |
| 519 | break; |
| 520 | } |
| 521 | |
| 522 | return retcode; |
| 523 | } |