xserver/os/alloc.c

/* SPDX-License-Identifier: MIT OR X11
 *
 * Copyright © 1987, 1998  The Open Group
 * Copyright © 2024 Enrico Weigelt, metux IT consult <info@metux.net>
 */
#include <dix-config.h>

#include <stdlib.h>

#include "os.h"

void *
XNFalloc(unsigned long amount)
{
    void *ptr = malloc(amount);

    if (!ptr)
        FatalError("Out of memory");
    return ptr;
}

/* The original XNFcalloc was used with the xnfcalloc macro which multiplied
 * the arguments at the call site without allowing calloc to check for overflow.
 * XNFcallocarray was added to fix that without breaking ABI.
 */
void *
XNFcalloc(unsigned long amount)
{
    return XNFcallocarray(1, amount);
}

void *
XNFcallocarray(size_t nmemb, size_t size)
{
    void *ret = calloc(nmemb, size);

    if (!ret)
        FatalError("XNFcalloc: Out of memory");
    return ret;
}

void *
XNFrealloc(void *ptr, unsigned long amount)
{
    void *ret = realloc(ptr, amount);

    if (!ret)
        FatalError("XNFrealloc: Out of memory");
    return ret;
}

void *
XNFreallocarray(void *ptr, size_t nmemb, size_t size)
{
    void *ret = reallocarray(ptr, nmemb, size);

    if (!ret)
        FatalError("XNFreallocarray: Out of memory");
    return ret;
}