| >>PUSH SOURCE FORMAT | |
| >>SOURCE FIXED | |
| * Copyright (c) 2021-2026 Symas Corporation | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions are | |
| * met: | |
| * | |
| * * Redistributions of source code must retain the above copyright | |
| * notice, this list of conditions and the following disclaimer. | |
| * * Redistributions in binary form must reproduce the above | |
| * copyright notice, this list of conditions and the following disclaimer | |
| * in the documentation and/or other materials provided with the | |
| * distribution. | |
| * * Neither the name of the Symas Corporation nor the names of its | |
| * contributors may be used to endorse or promote products derived from | |
| * this software without specific prior written permission. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| COPY "cblproto.cpy". | |
| * Include the posix_open function | |
| COPY posix-open. | |
| COPY psx-open. | |
| COPY cblproto. | |
| IDENTIFICATION DIVISION. | |
| PROGRAM-ID. CBL_OPEN_FILE. | |
| ENVIRONMENT DIVISION. | |
| CONFIGURATION SECTION. | |
| SOURCE-COMPUTER. Posix | |
| >>IF DEBUGGING-MODE IS Defined | |
| With Debugging Mode | |
| >>END-IF | |
| . | |
| DATA DIVISION. | |
| WORKING-STORAGE SECTION. | |
| 77 errno-val Binary-Long. | |
| 01 ws-access-mode PIC 9(8) comp-5. | |
| LINKAGE SECTION. | |
| 01 RETCODE PIC X(2) COMP-5 VALUE 0. | |
| 01 REDEFINES RETCODE. | |
| 03 MSB PIC X. | |
| 03 LSB BINARY-CHAR. | |
| 01 filename PIC X ANY LENGTH. | |
| 01 access-mode PIC X COMP-X. | |
| 01 deny-mode PIC X COMP-X. *> Not supported (must be 0). | |
| 01 device PIC X COMP-X. *> Not supported (must be 0). | |
| 01 file-handle PIC X(4) COMP-5. | |
| PROCEDURE DIVISION USING filename, | |
| By Reference access-mode, | |
| By Reference deny-mode, | |
| By Reference device, | |
| By Reference file-handle | |
| RETURNING RETCODE. | |
| MOVE access-mode TO ws-access-mode. | |
| IF ws-access-mode >= 64 | |
| SUBTRACT 64 FROM ws-access-mode *> Remove large file bit if set | |
| END-IF. | |
| D Display 'CBL_OPEN_FILE: access-mode: ' access-mode ', ' | |
| D Display 'deny-mode: ' deny-mode. | |
| EVALUATE ws-access-mode | |
| WHEN 1 *> Read only | |
| Move O_RDONLY to ws-access-mode | |
| WHEN 2 *> Write only (deny-mode must be 0) | |
| Move O_WRONLY to ws-access-mode | |
| WHEN 3 *> Read/write | |
| Move O_RDWR to ws-access-mode | |
| WHEN OTHER | |
| MOVE "9" TO MSB | |
| *> COBRT022 Illegal or impossible access mode for OPEN | |
| MOVE 22 TO LSB | |
| GOBACK | |
| END-EVALUATE. | |
| MOVE FUNCTION posix-open(filename, ws-access-mode, deny-mode) | |
| TO errno-val. | |
| D Display 'CBL_OPEN_FILE: RETCODE: ' RETCODE. | |
| If errno-val is < 0 | |
| then | |
| Move Function COBRT-FILE-STATUS() to RETCODE | |
| D Display 'COBRT-FILE-STATUS returned: ' RETCODE | |
| else | |
| Move errno-val to file-handle | |
| Move 0 to RETCODE | |
| end-if. | |
| END PROGRAM CBL_OPEN_FILE. | |
| >> POP SOURCE FORMAT |