os/alloc.c

   1 /* SPDX-License-Identifier: MIT OR X11
   2  *
   3  * Copyright © 1987, 1998  The Open Group
   4  * Copyright © 2024 Enrico Weigelt, metux IT consult <info@metux.net>
   5  */
   6 #include <dix-config.h>
   7
   8 #include <stdlib.h>
   9
  10 #include "os.h"
  11
  12 void *
  13 XNFalloc(unsigned long amount)
  14 {
  15     void *ptr = malloc(amount);
  16
  17     if (!ptr)
  18         FatalError("Out of memory");
  19     return ptr;
  20 }
  21
  22 /* The original XNFcalloc was used with the xnfcalloc macro which multiplied
  23  * the arguments at the call site without allowing calloc to check for overflow.
  24  * XNFcallocarray was added to fix that without breaking ABI.
  25  */
  26 void *
  27 XNFcalloc(unsigned long amount)
  28 {
  29     return XNFcallocarray(1, amount);
  30 }
  31
  32 void *
  33 XNFcallocarray(size_t nmemb, size_t size)
  34 {
  35     void *ret = calloc(nmemb, size);
  36
  37     if (!ret)
  38         FatalError("XNFcalloc: Out of memory");
  39     return ret;
  40 }
  41
  42 void *
  43 XNFrealloc(void *ptr, unsigned long amount)
  44 {
  45     void *ret = realloc(ptr, amount);
  46
  47     if (!ret)
  48         FatalError("XNFrealloc: Out of memory");
  49     return ret;
  50 }
  51
  52 void *
  53 XNFreallocarray(void *ptr, size_t nmemb, size_t size)
  54 {
  55     void *ret = reallocarray(ptr, nmemb, size);
  56
  57     if (!ret)
  58         FatalError("XNFreallocarray: Out of memory");
  59     return ret;
  60 }