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librazor/error.c
author J. Ali Harlow <ali@juiblex.co.uk>
Sat Aug 23 17:24:34 2014 +0100 (2014-08-23)
changeset 443 b2d6a8273459
parent 439 f28bb31024b4
child 447 0a5e583393e1
permissions -rw-r--r--
Update libtool versioning in preparation for release 
     1 /*

     2  * Copyright (C) 2011-2012  J. Ali Harlow <ali@juiblex.co.uk>

     3  *

     4  * This program is free software; you can redistribute it and/or modify

     5  * it under the terms of the GNU General Public License as published by

     6  * the Free Software Foundation; either version 2 of the License, or

     7  * (at your option) any later version.

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License along

    15  * with this program; if not, write to the Free Software Foundation, Inc.,

    16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

    17  */

    18 

    19 #include "config.h"

    20 

    21 #ifdef MSWIN_API

    22 #include <windows.h>

    23 #endif

    24 #include <stdlib.h>

    25 #include <string.h>

    26 

    27 #include "razor.h"

    28 #include "razor-internal.h"

    29 

    30 static const char *razor_error_get_path_str(struct razor_error *error)

    31 {

    32 	if (error->path_str)

    33 		return error->path_str;

    34 

    35 	if (error->path) {

    36 		error->path_str = razor_concat(error->path, ": ",

    37 					       error->str, NULL);

    38 		return error->path_str;

    39 	}

    40 

    41 	return error->str;

    42 }

    43 

    44 /**

    45  * razor_error_get_primary_text:

    46  *

    47  * Retrieves the basic information about an error. If a summary has been set

    48  * then this will be returned. Otherwise the error string possibly prefixed

    49  * by the path will be returned instead.

    50  *

    51  * Returns: Primary text of error.

    52  **/

    53 RAZOR_EXPORT const char *

    54 razor_error_get_primary_text(struct razor_error *error)

    55 {

    56 	if (error->summary)

    57 		return error->summary;

    58 

    59 	return razor_error_get_path_str(error);

    60 }

    61 

    62 /**

    63  * razor_error_get_secondary_text:

    64  *

    65  * Retrieves more detailed information about an error, if any. If a summary

    66  * has been set the error string possibly prefixed by the path will be

    67  * returned. Otherwise NULL will be returned.

    68  *

    69  * Returns: Secondary text of error or NULL.

    70  **/

    71 RAZOR_EXPORT const char *

    72 razor_error_get_secondary_text(struct razor_error *error)

    73 {

    74 	if (!error->summary)

    75 		return NULL;

    76 

    77 	return razor_error_get_path_str(error);

    78 }

    79 

    80 RAZOR_EXPORT const char *

    81 razor_error_get_msg(struct razor_error *error)

    82 {

    83 	const char *primary, *secondary;

    84 

    85 	if (error->msg)

    86 		return error->msg;

    87 

    88 	primary = razor_error_get_primary_text(error);

    89 

    90 	secondary = razor_error_get_secondary_text(error);

    91 

    92 	if (secondary) {

    93 		error->msg = razor_concat(primary, "\n", secondary, NULL);

    94 		return error->msg;

    95 	} else

    96 		return primary;

    97 }

    98 

    99 #ifdef MSWIN_API

   100 struct razor_error *

   101 razor_error_new_mswin(const wchar_t *path, DWORD err)

   102 {

   103 	struct razor_error *error;

   104 	wchar_t *buf;

   105 

   106 	error = zalloc(sizeof *error);

   107 

   108 	if (path)

   109 		error->path = razor_utf16_to_utf8(path, -1);

   110 

   111 	FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER|

   112 		       FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,

   113 		       NULL, err, MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),

   114 		       (LPWSTR)&buf, 0, NULL);

   115 	error->str = razor_utf16_to_utf8(buf, -1);

   116 	LocalFree(buf);

   117 

   118 	return error;

   119 }

   120 

   121 struct razor_error *

   122 razor_error_new_str2(const wchar_t *path, const char *str)

   123 {

   124 	struct razor_error *error;

   125 

   126 	error = zalloc(sizeof *error);

   127 

   128 	if (path)

   129 		error->path = razor_utf16_to_utf8(path, -1);

   130 

   131 	error->str = strdup(str);

   132 

   133 	return error;

   134 }

   135 #endif	/* MSWIN_API */

   136 

   137 RAZOR_EXPORT struct razor_error *

   138 razor_error_new_str(const char *path, const char *str)

   139 {

   140 	struct razor_error *error;

   141 

   142 	error = zalloc(sizeof *error);

   143 

   144 	if (path)

   145 		error->path = strdup(path);

   146 

   147 	error->str = strdup(str);

   148 

   149 	return error;

   150 }

   151 

   152 RAZOR_EXPORT struct razor_error *

   153 razor_error_dup(struct razor_error *src, const char *summary)

   154 {

   155 	struct razor_error *error;

   156 

   157 	error = zalloc(sizeof *error);

   158 

   159 	if (summary)

   160 		error->summary = strdup(summary);

   161 	else if (src->summary)

   162 		error->summary = strdup(src->summary);

   163 

   164 	if (src->path)

   165 		error->path = strdup(src->path);

   166 

   167 	if (src->str)

   168 		error->str = strdup(src->str);

   169 

   170 	return error;

   171 }

   172 

   173 RAZOR_EXPORT void

   174 razor_error_free(struct razor_error *error)

   175 {

   176 	free(error->path);

   177 	free(error->str);

   178 	free(error->path_str);

   179 	free(error->summary);

   180 	free(error->msg);

   181 	free(error);

   182 }
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