cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* lt_error.c -- error propogation interface |
| 2 | |
| 3 | Copyright (C) 1999, 2000, 2001, 2004, 2005, 2007 Free Software Foundation, Inc. |
| 4 | Written by Thomas Tanner, 1999 |
| 5 | |
| 6 | NOTE: The canonical source of this file is maintained with the |
| 7 | GNU Libtool package. Report bugs to bug-libtool@gnu.org. |
| 8 | |
| 9 | GNU Libltdl is free software; you can redistribute it and/or |
| 10 | modify it under the terms of the GNU Lesser General Public |
| 11 | License as published by the Free Software Foundation; either |
| 12 | version 2 of the License, or (at your option) any later version. |
| 13 | |
| 14 | As a special exception to the GNU Lesser General Public License, |
| 15 | if you distribute this file as part of a program or library that |
| 16 | is built using GNU Libtool, you may include this file under the |
| 17 | same distribution terms that you use for the rest of that program. |
| 18 | |
| 19 | GNU Libltdl is distributed in the hope that it will be useful, |
| 20 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | GNU Lesser General Public License for more details. |
| 23 | |
| 24 | You should have received a copy of the GNU Lesser General Public |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 25 | License along with GNU Libltdl; see the file COPYING.LIB. If not, a |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 26 | copy can be downloaded from http://www.gnu.org/licenses/lgpl.html, |
| 27 | or obtained by writing to the Free Software Foundation, Inc., |
| 28 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 29 | */ |
| 30 | |
| 31 | #include "lt__private.h" |
| 32 | #include "lt_error.h" |
| 33 | |
| 34 | static const char *last_error = 0; |
| 35 | static const char error_strings[LT_ERROR_MAX][LT_ERROR_LEN_MAX + 1] = |
| 36 | { |
| 37 | #define LT_ERROR(name, diagnostic) diagnostic, |
| 38 | lt_dlerror_table |
| 39 | #undef LT_ERROR |
| 40 | }; |
| 41 | |
| 42 | static const char **user_error_strings = 0; |
| 43 | static int errorcount = LT_ERROR_MAX; |
| 44 | |
| 45 | int |
| 46 | lt_dladderror (const char *diagnostic) |
| 47 | { |
| 48 | int errindex = 0; |
| 49 | int result = -1; |
| 50 | const char **temp = (const char **) 0; |
| 51 | |
| 52 | assert (diagnostic); |
| 53 | |
| 54 | errindex = errorcount - LT_ERROR_MAX; |
| 55 | temp = REALLOC (const char *, user_error_strings, 1 + errindex); |
| 56 | if (temp) |
| 57 | { |
| 58 | user_error_strings = temp; |
| 59 | user_error_strings[errindex] = diagnostic; |
| 60 | result = errorcount++; |
| 61 | } |
| 62 | |
| 63 | return result; |
| 64 | } |
| 65 | |
| 66 | int |
| 67 | lt_dlseterror (int errindex) |
| 68 | { |
| 69 | int errors = 0; |
| 70 | |
| 71 | if (errindex >= errorcount || errindex < 0) |
| 72 | { |
| 73 | /* Ack! Error setting the error message! */ |
| 74 | LT__SETERROR (INVALID_ERRORCODE); |
| 75 | ++errors; |
| 76 | } |
| 77 | else if (errindex < LT_ERROR_MAX) |
| 78 | { |
| 79 | /* No error setting the error message! */ |
| 80 | LT__SETERRORSTR (error_strings[errindex]); |
| 81 | } |
| 82 | else |
| 83 | { |
| 84 | /* No error setting the error message! */ |
| 85 | LT__SETERRORSTR (user_error_strings[errindex - LT_ERROR_MAX]); |
| 86 | } |
| 87 | |
| 88 | return errors; |
| 89 | } |
| 90 | |
| 91 | const char * |
| 92 | lt__error_string (int errorcode) |
| 93 | { |
| 94 | assert (errorcode >= 0); |
| 95 | assert (errorcode < LT_ERROR_MAX); |
| 96 | |
| 97 | return error_strings[errorcode]; |
| 98 | } |
| 99 | |
| 100 | const char * |
| 101 | lt__get_last_error (void) |
| 102 | { |
| 103 | return last_error; |
| 104 | } |
| 105 | |
| 106 | const char * |
| 107 | lt__set_last_error (const char *errormsg) |
| 108 | { |
| 109 | return last_error = errormsg; |
| 110 | } |