| Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/openssh/src/openbsd-compat/reallocarray.c |
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| 1 | /* $OpenBSD: reallocarray.c,v 1.2 2014/12/08 03:45:00 bcook Exp $ */ | - | ||||||||||||
| 2 | /* | - | ||||||||||||
| 3 | * Copyright (c) 2008 Otto Moerbeek <otto@drijf.net> | - | ||||||||||||
| 4 | * | - | ||||||||||||
| 5 | * Permission to use, copy, modify, and distribute this software for any | - | ||||||||||||
| 6 | * purpose with or without fee is hereby granted, provided that the above | - | ||||||||||||
| 7 | * copyright notice and this permission notice appear in all copies. | - | ||||||||||||
| 8 | * | - | ||||||||||||
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | - | ||||||||||||
| 10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | - | ||||||||||||
| 11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | - | ||||||||||||
| 12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | - | ||||||||||||
| 13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | - | ||||||||||||
| 14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | - | ||||||||||||
| 15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | - | ||||||||||||
| 16 | */ | - | ||||||||||||
| 17 | - | |||||||||||||
| 18 | /* OPENBSD ORIGINAL: lib/libc/stdlib/reallocarray.c */ | - | ||||||||||||
| 19 | - | |||||||||||||
| 20 | #include "includes.h" | - | ||||||||||||
| 21 | #ifndef HAVE_REALLOCARRAY | - | ||||||||||||
| 22 | - | |||||||||||||
| 23 | #include <sys/types.h> | - | ||||||||||||
| 24 | #include <errno.h> | - | ||||||||||||
| 25 | #ifdef HAVE_STDINT_H | - | ||||||||||||
| 26 | #include <stdint.h> | - | ||||||||||||
| 27 | #endif | - | ||||||||||||
| 28 | #include <stdlib.h> | - | ||||||||||||
| 29 | - | |||||||||||||
| 30 | /* | - | ||||||||||||
| 31 | * This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX | - | ||||||||||||
| 32 | * if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW | - | ||||||||||||
| 33 | */ | - | ||||||||||||
| 34 | #define MUL_NO_OVERFLOW ((size_t)1 << (sizeof(size_t) * 4)) | - | ||||||||||||
| 35 | - | |||||||||||||
| 36 | void * | - | ||||||||||||
| 37 | reallocarray(void *optr, size_t nmemb, size_t size) | - | ||||||||||||
| 38 | { | - | ||||||||||||
| 39 | if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
| 0-1 | ||||||||||||
| 40 | nmemb > 0 && SIZE_MAX / nmemb < size) {
| 0 | ||||||||||||
| 41 | errno = ENOMEM; | - | ||||||||||||
| 42 | return NULL; never executed: return ((void *)0) ; | 0 | ||||||||||||
| 43 | } | - | ||||||||||||
| 44 | return realloc(optr, size * nmemb); executed 1 time by 1 test: return realloc(optr, size * nmemb);Executed by:
| 1 | ||||||||||||
| 45 | } | - | ||||||||||||
| 46 | #endif /* HAVE_REALLOCARRAY */ | - | ||||||||||||
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