trunk/libltdl/lt_error.c

/* lt_error.c -- error propagation interface

   Copyright (C) 1999-2001, 2004-2005, 2007, 2011-2014 Free Software
   Foundation, Inc.
   Written by Thomas Tanner, 1999

   NOTE: The canonical source of this file is maintained with the
   GNU Libtool package.  Report bugs to bug-libtool@gnu.org.

GNU Libltdl is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.

As a special exception to the GNU Lesser General Public License,
if you distribute this file as part of a program or library that
is built using GNU Libtool, you may include this file under the
same distribution terms that you use for the rest of that program.

GNU Libltdl is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with GNU Libltdl; see the file COPYING.LIB.  If not, a
copy can be downloaded from  http://www.gnu.org/licenses/lgpl.html,
or obtained by writing to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/

#include "lt__private.h"
#include "lt_error.h"

static const char       *last_error     = 0;
static const char       error_strings[LT_ERROR_MAX][LT_ERROR_LEN_MAX + 1] =
  {
#define LT_ERROR(name, diagnostic)      diagnostic,
    lt_dlerror_table
#undef LT_ERROR
  };

static  const char    **user_error_strings      = 0;
static  int             errorcount              = LT_ERROR_MAX;

int
lt_dladderror (const char *diagnostic)
{
  int           errindex = 0;
  int           result   = -1;
  const char  **temp     = (const char **) 0;

  assert (diagnostic);

  errindex = errorcount - LT_ERROR_MAX;
  temp = REALLOC (const char *, user_error_strings, 1 + errindex);
  if (temp)
    {
      user_error_strings                = temp;
      user_error_strings[errindex]      = diagnostic;
      result                            = errorcount++;
    }

  return result;
}

int
lt_dlseterror (int errindex)
{
  int           errors   = 0;

  if (errindex >= errorcount || errindex < 0)
    {
      /* Ack!  Error setting the error message! */
      LT__SETERROR (INVALID_ERRORCODE);
      ++errors;
    }
  else if (errindex < LT_ERROR_MAX)
    {
      /* No error setting the error message! */
      LT__SETERRORSTR (error_strings[errindex]);
    }
  else
    {
      /* No error setting the error message! */
      LT__SETERRORSTR (user_error_strings[errindex - LT_ERROR_MAX]);
    }

  return errors;
}

const char *
lt__error_string (int errorcode)
{
  assert (errorcode >= 0);
  assert (errorcode < LT_ERROR_MAX);

  return error_strings[errorcode];
}

const char *
lt__get_last_error (void)
{
  return last_error;
}

const char *
lt__set_last_error (const char *errormsg)
{
  return last_error = errormsg;
}
Revision:	4806
Committed:	Thu Oct 30 19:33:19 2014 UTC (11 years, 8 months ago) by michael
Content type:	text/x-csrc
File size:	2967 byte(s)
Log Message:	- libtool 2.4.3
#	User	Rev	Content
1	michael	4806	/* lt_error.c -- error propagation interface
2	michael	945
3	michael	4806	Copyright (C) 1999-2001, 2004-2005, 2007, 2011-2014 Free Software
4			Foundation, Inc.
5	michael	945	Written by Thomas Tanner, 1999
6
7			NOTE: The canonical source of this file is maintained with the
8			GNU Libtool package. Report bugs to bug-libtool@gnu.org.
9
10			GNU Libltdl is free software; you can redistribute it and/or
11			modify it under the terms of the GNU Lesser General Public
12			License as published by the Free Software Foundation; either
13			version 2 of the License, or (at your option) any later version.
14
15			As a special exception to the GNU Lesser General Public License,
16			if you distribute this file as part of a program or library that
17			is built using GNU Libtool, you may include this file under the
18			same distribution terms that you use for the rest of that program.
19
20			GNU Libltdl is distributed in the hope that it will be useful,
21			but WITHOUT ANY WARRANTY; without even the implied warranty of
22			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23			GNU Lesser General Public License for more details.
24
25			You should have received a copy of the GNU Lesser General Public
26			License along with GNU Libltdl; see the file COPYING.LIB. If not, a
27			copy can be downloaded from http://www.gnu.org/licenses/lgpl.html,
28			or obtained by writing to the Free Software Foundation, Inc.,
29			51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
30			*/
31
32			#include "lt__private.h"
33			#include "lt_error.h"
34
35			static const char *last_error = 0;
36			static const char error_strings[LT_ERROR_MAX][LT_ERROR_LEN_MAX + 1] =
37			{
38			#define LT_ERROR(name, diagnostic) diagnostic,
39			lt_dlerror_table
40			#undef LT_ERROR
41			};
42
43			static const char **user_error_strings = 0;
44			static int errorcount = LT_ERROR_MAX;
45
46			int
47			lt_dladderror (const char *diagnostic)
48			{
49			int errindex = 0;
50			int result = -1;
51			const char temp = (const char ) 0;
52
53			assert (diagnostic);
54
55			errindex = errorcount - LT_ERROR_MAX;
56			temp = REALLOC (const char *, user_error_strings, 1 + errindex);
57			if (temp)
58			{
59			user_error_strings = temp;
60			user_error_strings[errindex] = diagnostic;
61			result = errorcount++;
62			}
63
64			return result;
65			}
66
67			int
68			lt_dlseterror (int errindex)
69			{
70			int errors = 0;
71
72			if (errindex >= errorcount \|\| errindex < 0)
73			{
74			/* Ack! Error setting the error message! */
75			LT__SETERROR (INVALID_ERRORCODE);
76			++errors;
77			}
78			else if (errindex < LT_ERROR_MAX)
79			{
80			/* No error setting the error message! */
81			LT__SETERRORSTR (error_strings[errindex]);
82			}
83			else
84			{
85			/* No error setting the error message! */
86			LT__SETERRORSTR (user_error_strings[errindex - LT_ERROR_MAX]);
87			}
88
89			return errors;
90			}
91
92			const char *
93			lt__error_string (int errorcode)
94			{
95			assert (errorcode >= 0);
96			assert (errorcode < LT_ERROR_MAX);
97
98			return error_strings[errorcode];
99			}
100
101			const char *
102			lt__get_last_error (void)
103			{
104			return last_error;
105			}
106
107			const char *
108			lt__set_last_error (const char *errormsg)
109			{
110			return last_error = errormsg;
111			}