/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */

/* clients/ksu/xmalloc.c - Exit-on-failure allocation wrappers */

/*

 * Copyright 1999 by the Massachusetts Institute of Technology.

 * All Rights Reserved.

 *

 * Export of this software from the United States of America may

 *   require a specific license from the United States Government.

 *   It is the responsibility of any person or organization contemplating

 *   export to obtain such a license before exporting.

 *

 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and

 * distribute this software and its documentation for any purpose and

 * without fee is hereby granted, provided that the above copyright

 * notice appear in all copies and that both that copyright notice and

 * this permission notice appear in supporting documentation, and that

 * the name of M.I.T. not be used in advertising or publicity pertaining

 * to distribution of the software without specific, written prior

 * permission.  Furthermore if you modify this software you must label

 * your software as modified software and not distribute it in such a

 * fashion that it might be confused with the original M.I.T. software.

 * M.I.T. makes no representations about the suitability of

 * this software for any purpose.  It is provided "as is" without express

 * or implied warranty.

 */

#include "k5-platform.h"

#include "ksu.h"

void *xmalloc (size_t sz)

{

    void *ret = malloc (sz);

    if (ret == 0 && sz != 0) {

        perror (prog_name);

        exit (1);

    }

    return ret;

}

void *xrealloc (void *old, size_t newsz)

{

    void *ret = realloc (old, newsz);

    if (ret == 0 && newsz != 0) {

        perror (prog_name);

        exit (1);

    }

    return ret;

}

void *xcalloc (size_t nelts, size_t eltsz)

{

    void *ret = calloc (nelts, eltsz);

    if (ret == 0 && nelts != 0 && eltsz != 0) {

        perror (prog_name);

        exit (1);

    }

    return ret;

}

char *xstrdup (const char *src)

{

    size_t len = strlen (src) + 1;

    char *dst = xmalloc (len);

    memcpy (dst, src, len);

    return dst;

}

char *xasprintf (const char *format, ...)

{

    char *out;

    va_list args;

    va_start (args, format);

    if (vasprintf(&out, format, args) < 0) {

        perror (prog_name);

        exit (1);

    }

    va_end(args);

    return out;

}