File: libmoonshot-common.c

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/*
 * Copyright (c) 2011, JANET(UK)
 * 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 JANET(UK) 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 HOLDER 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.
 *
 * Author: Sam Thursfield <samthursfield@codethink.co.uk>
 */

#include "libmoonshot.h"

#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>

MoonshotError *moonshot_error_new (MoonshotErrorCode  code,
                                   const char        *format,
                                   ...)
{
    MoonshotError *error;
    int            buffer_size;
    va_list        args;

    error = malloc (sizeof (MoonshotError));
    error->code = code;

    va_start (args, format);

    #ifdef OS_WIN32
    buffer_size = _vscprintf (format, args);
    error->message = malloc (buffer_size + 1);
    _vsnprintf (error->message, buffer_size, format, args);
    error->message[buffer_size] = 0;
    #else
    vasprintf (&error->message, format, args);
    #endif

    return error;
}

void moonshot_error_free (MoonshotError *error)
{
    if (error == NULL)
        return;

    if (error->message != NULL) 
        free (error->message);

    free (error);
}