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Diffstat (limited to 'devel/got/files/openbsd-compat/recallocarray.c')
-rw-r--r--devel/got/files/openbsd-compat/recallocarray.c82
1 files changed, 0 insertions, 82 deletions
diff --git a/devel/got/files/openbsd-compat/recallocarray.c b/devel/got/files/openbsd-compat/recallocarray.c
deleted file mode 100644
index 6fcb1d361b4b..000000000000
--- a/devel/got/files/openbsd-compat/recallocarray.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/* $OpenBSD: recallocarray.c,v 1.2 2021/03/18 11:16:58 claudio Exp $ */
-/*
- * Copyright (c) 2008, 2017 Otto Moerbeek <otto@drijf.net>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <errno.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <unistd.h>
-
-void *recallocarray(void *, size_t, size_t, size_t);
-
-/*
- * This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX
- * if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW
- */
-#define MUL_NO_OVERFLOW ((size_t)1 << (sizeof(size_t) * 4))
-
-void *
-recallocarray(void *ptr, size_t oldnmemb, size_t newnmemb, size_t size)
-{
- size_t oldsize, newsize;
- void *newptr;
-
- if (ptr == NULL)
- return calloc(newnmemb, size);
-
- if ((newnmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
- newnmemb > 0 && SIZE_MAX / newnmemb < size) {
- errno = ENOMEM;
- return NULL;
- }
- newsize = newnmemb * size;
-
- if ((oldnmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
- oldnmemb > 0 && SIZE_MAX / oldnmemb < size) {
- errno = EINVAL;
- return NULL;
- }
- oldsize = oldnmemb * size;
-
- /*
- * Don't bother too much if we're shrinking just a bit,
- * we do not shrink for series of small steps, oh well.
- */
- if (newsize <= oldsize) {
- size_t d = oldsize - newsize;
-
- if (d < oldsize / 2 && d < (size_t)getpagesize()) {
- memset((char *)ptr + newsize, 0, d);
- return ptr;
- }
- }
-
- newptr = malloc(newsize);
- if (newptr == NULL)
- return NULL;
-
- if (newsize > oldsize) {
- memcpy(newptr, ptr, oldsize);
- memset((char *)newptr + oldsize, 0, newsize - oldsize);
- } else
- memcpy(newptr, ptr, newsize);
-
- explicit_bzero(ptr, oldsize);
- free(ptr);
-
- return newptr;
-}