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/*============================================================================
WCSLIB 5.14 - an implementation of the FITS WCS standard.
Copyright (C) 1995-2016, Mark Calabretta
This file is part of WCSLIB.
WCSLIB 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 3 of the License, or (at your option)
any later version.
WCSLIB 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 WCSLIB. If not, see http://www.gnu.org/licenses.
Direct correspondence concerning WCSLIB to mark@calabretta.id.au
Author: Mark Calabretta, Australia Telescope National Facility, CSIRO.
Module author: Michael Droettboom
http://www.atnf.csiro.au/people/Mark.Calabretta
$Id: wcserr.c,v 5.14 2016/02/07 10:49:31 mcalabre Exp $
*===========================================================================*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "wcserr.h"
#include "wcsprintf.h"
static int wcserr_enabled = 0;
/*--------------------------------------------------------------------------*/
int wcserr_enable(int enable)
{
return wcserr_enabled = (enable ? 1 : 0);
}
/*--------------------------------------------------------------------------*/
int wcserr_prt(
const struct wcserr *err,
const char *prefix)
{
if (!wcserr_enabled) {
wcsprintf("Error messaging is not enabled, use wcserr_enable().\n");
return 2;
}
if (err == 0x0) {
return 0;
}
if (err->status) {
if (prefix == 0x0) prefix = "";
if (err->status > 0) {
wcsprintf("%sERROR %d in %s() at line %d of file %s:\n%s%s.\n",
prefix, err->status, err->function, err->line_no, err->file, prefix,
err->msg);
} else {
/* An informative message only. */
wcsprintf("%sINFORMATIVE message from %s() at line %d of file "
"%s:\n%s%s.\n", prefix, err->function, err->line_no, err->file,
prefix, err->msg);
}
}
return 0;
}
/*--------------------------------------------------------------------------*/
int wcserr_clear(
struct wcserr **errp)
{
if (*errp) free(*errp);
*errp = 0x0;
return 0;
}
/*--------------------------------------------------------------------------*/
int wcserr_set(
struct wcserr **errp,
int status,
const char *function,
const char *file,
int line_no,
const char *format,
...)
{
char fmt[128];
struct wcserr *err;
va_list argp;
if (!wcserr_enabled) return status;
if (errp == 0x0) {
return status;
}
err = *errp;
if (status) {
if (err == 0x0) {
*errp = err = calloc(1, sizeof(struct wcserr));
}
err->status = status;
err->function = function;
err->file = file;
err->line_no = line_no;
/* Workaround for a compiler segv from gcc 4.2.1 in MacOSX 10.7. */
strncpy(fmt, format, 128);
va_start(argp, format);
vsnprintf(err->msg, WCSERR_MSG_LENGTH, fmt, argp);
va_end(argp);
} else if (err) {
free(err);
*errp = 0x0;
}
return status;
}
/*--------------------------------------------------------------------------*/
int wcserr_copy(
const struct wcserr *src,
struct wcserr *dst)
{
if (src == 0x0) {
if (dst) {
memset(dst, 0, sizeof(struct wcserr));
}
return 0;
}
if (dst) {
memcpy(dst, src, sizeof(struct wcserr));
}
return src->status;
}
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