Rev 5 | Blame | Compare with Previous | Last modification | View Log | RSS feed
/*
* Copyright (c) 2002-2005 The TenDRA Project <http://www.tendra.org/>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of The TenDRA Project 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 HOLDERS 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.
*
* $Id$
*/
/*
Crown Copyright (c) 1997
This TenDRA(r) Computer Program is subject to Copyright
owned by the United Kingdom Secretary of State for Defence
acting through the Defence Evaluation and Research Agency
(DERA). It is made available to Recipients with a
royalty-free licence for its use, reproduction, transfer
to other parties and amendment for any purpose not excluding
product development provided that any such use et cetera
shall be deemed to be acceptance of the following conditions:-
(1) Its Recipients shall ensure that this Notice is
reproduced upon any copies or amended versions of it;
(2) Any amended version of it shall be clearly marked to
show both the nature of and the organisation responsible
for the relevant amendment or amendments;
(3) Its onward transfer from a recipient to another
party shall be deemed to be that party's acceptance of
these conditions;
(4) DERA gives no warranty or assurance as to its
quality or suitability for any purpose and DERA accepts
no liability whatsoever in relation to any use to which
it may be put.
*/
#include "config.h"
#include "error.h"
#include "release.h"
/*
ALLOW BOTH STDARG AND VARARGS
The flag FS_STDARG decides which of stdarg.h and varargs.h is to be
used for dealing with functions with a variable number of arguments.
*/
#if FS_STDARG
#include <stdarg.h>
#else
#include <varargs.h>
#endif
/*
RELEASE VERSION
This macro gives the release version, if known.
*/
#ifndef RELEASE
#define RELEASE "unknown"
#endif
/*
ERROR FLAGS AND VARIABLES
These variables are used or set in the error routines.
*/
CONST char *progname = NULL;
CONST char *progvers = NULL;
int exit_status = EXIT_SUCCESS;
int maximum_errors = 20;
static int number_errors = 0;
int crt_line_no = 1;
CONST char *crt_file_name = NULL;
/*
SET PROGRAM NAME
This routine sets the program name to nm and the program version to
vers.
*/
void
set_progname(CONST char *nm, CONST char *vers)
{
char *r = strrchr(nm, '/');
progname = (r ? r + 1 : nm);
progvers = vers;
return;
}
/*
PRINT VERSION NUMBER
This routine prints the program name and version number.
*/
void
report_version(void)
{
CONST char *r = RELEASE;
CONST char *nm = progname;
CONST char *vers = progvers;
if (nm == NULL) nm = "unknown";
if (vers == NULL) vers = "1.0";
fprintf_v(stderr, "%s: Version %s (Release %s)\n", nm, vers, r);
return;
}
/*
PRINT AN ERROR MESSAGE
This routine prints an error message s with arguments args and severity
e. fn and ln give the error position.
*/
static void
error_msg(int e, CONST char *fn, int ln, CONST char *s, va_list args)
{
if (e != ERROR_NONE) {
if (progname) fprintf_v(stderr, "%s: ", progname);
switch (e) {
case ERROR_WARNING: {
fprintf_v(stderr, "Warning: ");
break;
}
case ERROR_FATAL: {
fprintf_v(stderr, "Fatal: ");
exit_status = EXIT_FAILURE;
number_errors++;
break;
}
default : {
fprintf_v(stderr, "Error: ");
exit_status = EXIT_FAILURE;
number_errors++;
break;
}
}
if (fn) {
fprintf_v(stderr, "%s: ", fn);
if (ln != -1) fprintf_v(stderr, "line %d: ", ln);
}
vfprintf_v(stderr, s, args);
fprintf_v(stderr, ".\n");
if (e == ERROR_FATAL) exit(EXIT_FAILURE);
if (number_errors >= maximum_errors && maximum_errors) {
error(ERROR_FATAL, "Too many errors (%d) - aborting",
number_errors);
}
}
return;
}
/*
PRINT AN ERROR AT CURRENT POSITION
This routine prints the error message s of severity e at the current
file position. s is a printf format string whose arguments are passed
as the optional procedure parameters.
*/
void
error(int e, CONST char *s, ...)
/*VARARGS*/
{
va_list args;
#if FS_STDARG
va_start(args, s);
#else
int e;
CONST char *s;
va_start(args);
e = va_arg(args, int);
s = va_arg(args, CONST char *);
#endif
error_msg(e, crt_file_name, crt_line_no, s, args);
va_end(args);
return;
}
/*
PRINT AN ERROR AT A GIVEN POSITION
This routine prints the error message s of severity e at the file
position given by fn and ln. s is as above.
*/
void
error_posn(int e, CONST char *fn, int ln, CONST char *s, ...)
/*VARARGS*/
{
va_list args;
#if FS_STDARG
va_start(args, s);
#else
int e;
CONST char *fn;
int ln;
CONST char *s;
va_start(args);
e = va_arg(args, int);
fn = va_arg(args, CONST char *);
ln = va_arg(args, int);
s = va_arg(args, CONST char *);
#endif
error_msg(e, fn, ln, s, args);
va_end(args);
return;
}
#ifdef DEBUG
/*
PRINT AN ASSERTION
This routine prints the assertion s which occurred at the location
given by file and line.
*/
void
assertion(CONST char *s, CONST char *file, int line)
{
if (progname) fprintf_v(stderr, "%s: ", progname);
fprintf_v(stderr, "Assertion: %s: line %d: '%s'.\n", file, line, s);
abort();
}
#endif