| 1 | /* |
| 2 | * henv.c |
| 3 | * |
| 4 | * $Id$ |
| 5 | * |
| 6 | * Environment object management functions |
| 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 | |
| 37 | #include "itrace.h" |
| 38 | |
| 39 | RETCODE SQL_API |
| 40 | SQLAllocEnv (HENV FAR * phenv) |
| 41 | { |
| 42 | GENV_t FAR *genv; |
| 43 | |
| 44 | genv = (GENV_t *) MEM_ALLOC (sizeof (GENV_t)); |
| 45 | |
| 46 | if (genv == NULL) |
| 47 | { |
| 48 | *phenv = SQL_NULL_HENV; |
| 49 | |
| 50 | return SQL_ERROR; |
| 51 | } |
| 52 | |
| 53 | #if (ODBCVER >= 0x0300 ) |
| 54 | genv->type = SQL_HANDLE_ENV; |
| 55 | #endif |
| 56 | |
| 57 | genv->henv = SQL_NULL_HENV; /* driver's env list */ |
| 58 | genv->hdbc = SQL_NULL_HDBC; /* driver's dbc list */ |
| 59 | genv->herr = SQL_NULL_HERR; /* err list */ |
| 60 | |
| 61 | *phenv = (HENV) genv; |
| 62 | |
| 63 | return SQL_SUCCESS; |
| 64 | } |
| 65 | |
| 66 | |
| 67 | RETCODE SQL_API |
| 68 | SQLFreeEnv (HENV henv) |
| 69 | { |
| 70 | GENV_t FAR *genv = (GENV_t *) henv; |
| 71 | |
| 72 | if (henv == SQL_NULL_HENV) |
| 73 | { |
| 74 | return SQL_INVALID_HANDLE; |
| 75 | } |
| 76 | |
| 77 | if (genv->hdbc != SQL_NULL_HDBC) |
| 78 | { |
| 79 | PUSHSQLERR (genv->herr, en_S1010); |
| 80 | |
| 81 | return SQL_ERROR; |
| 82 | } |
| 83 | |
| 84 | _iodbcdm_freesqlerrlist (genv->herr); |
| 85 | |
| 86 | MEM_FREE (henv); |
| 87 | |
| 88 | return SQL_SUCCESS; |
| 89 | } |