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/*============================================================================
WCSLIB 7.12 - an implementation of the FITS WCS standard.
Copyright (C) 1995-2022, 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.
Author: Mark Calabretta, Australia Telescope National Facility, CSIRO.
Module author: Michael Droettboom
http://www.atnf.csiro.au/people/Mark.Calabretta
$Id: wcserr.c,v 7.12 2022/09/09 04:57:58 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_size(const struct wcserr *err, int sizes[2])
{
if (err == 0x0) {
sizes[0] = sizes[1] = 0;
return 0;
}
// Base size, in bytes.
sizes[0] = sizeof(struct wcserr);
// Total size of allocated memory, in bytes.
sizes[1] = 0;
if (err->msg) {
sizes[1] += strlen(err->msg) + 1;
}
return 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) {
if ((*errp)->msg) {
free((*errp)->msg);
}
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,
...)
{
int msglen;
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));
}
if (err == 0x0) {
return status;
}
err->status = status;
err->function = function;
err->file = file;
err->line_no = line_no;
err->msg = 0x0;
// Determine the required message buffer size.
va_start(argp, format);
msglen = vsnprintf(0x0, 0, format, argp) + 1;
va_end(argp);
if (msglen <= 0 || (err->msg = malloc(msglen)) == 0x0) {
wcserr_clear(errp);
return status;
}
// Write the message.
va_start(argp, format);
msglen = vsnprintf(err->msg, msglen, format, argp);
va_end(argp);
if (msglen < 0) {
wcserr_clear(errp);
}
}
return status;
}
//----------------------------------------------------------------------------
int wcserr_copy(const struct wcserr *src, struct wcserr *dst)
{
size_t msglen;
if (src == 0x0) {
if (dst) {
memset(dst, 0, sizeof(struct wcserr));
}
return 0;
}
if (dst) {
memcpy(dst, src, sizeof(struct wcserr));
if (src->msg) {
msglen = strlen(src->msg) + 1;
if ((dst->msg = malloc(msglen))) {
strcpy(dst->msg, src->msg);
}
}
}
return src->status;
}
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