check_error.c

/*
 * Check: a unit test framework for C
 * Copyright (C) 2001, 2002 Arien Malec
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 this library; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */

#include "../lib/libcompat.h"

#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <setjmp.h>

#include "check_error.h"

/**
 * Storage for setjmp/longjmp context information used in NOFORK mode
 */
jmp_buf error_jmp_buffer;


/* FIXME: including a colon at the end is a bad way to indicate an error */
void eprintf(const char *fmt, const char *file, int line, ...)
{
    va_list args;

    fflush(stderr);

    fprintf(stderr, "%s:%d: ", file, line);
    va_start(args, line);
    vfprintf(stderr, fmt, args);
    va_end(args);

    /*include system error information if format ends in colon */
    if(fmt[0] != '\0' && fmt[strlen(fmt) - 1] == ':')
        fprintf(stderr, " %s", strerror(errno));
    fprintf(stderr, "\n");

    exit(2);
}

void *emalloc(size_t n)
{
    void *p;

    p = malloc(n);
    if(p == NULL)
        eprintf("malloc of %u bytes failed:", __FILE__, __LINE__ - 2, n);
    return p;
}

void *erealloc(void *ptr, size_t n)
{
    void *p;

    p = realloc(ptr, n);
    if(p == NULL)
        eprintf("realloc of %u bytes failed:", __FILE__, __LINE__ - 2, n);
    return p;
}