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74c1c3660a
On some platforms (AIX, maybe others) allocating zero bytes of memory via the various *alloc functions returns NULL, which is permitted by the standards. Autoconf has some macros for detecting this (with the exception of calloc for some reason) so use these and if necessary activate shims for them. ok djm@
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/*
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* Copyright (c) 2017 Darren Tucker (dtucker at zip com au).
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "config.h"
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#undef malloc
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#undef calloc
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#undef realloc
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#include <sys/types.h>
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#include <stdlib.h>
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#if defined(HAVE_MALLOC) && HAVE_MALLOC == 0
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void *
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rpl_malloc(size_t size)
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{
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if (size == 0)
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size = 1;
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return malloc(size);
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}
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#endif
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#if defined(HAVE_CALLOC) && HAVE_CALLOC == 0
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void *
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rpl_calloc(size_t nmemb, size_t size)
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{
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if (nmemb == 0)
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nmemb = 1;
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if (size == 0)
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size = 1;
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return calloc(nmemb, size);
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}
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#endif
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#if defined (HAVE_REALLOC) && HAVE_REALLOC == 0
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void *
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rpl_realloc(void *ptr, size_t size)
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{
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if (size == 0)
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size = 1;
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return realloc(ptr, size);
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}
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#endif
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