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Diffstat (limited to 'include/util.h')
| -rw-r--r-- | include/util.h | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/include/util.h b/include/util.h deleted file mode 100644 index 881b59c..0000000 --- a/include/util.h +++ /dev/null @@ -1,67 +0,0 @@ -/* SPDX-License-Identifier: LGPL-3.0-or-later */ -/* - * util.h - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#ifndef UTIL_H -#define UTIL_H - -#include "config.h" -#include "sqfs/predef.h" - -#include <stdint.h> -#include <stddef.h> - -#include "compat.h" - -#if defined(__GNUC__) || defined(__clang__) -#define UI_ADD_OV __builtin_uadd_overflow -#define UL_ADD_OV __builtin_uaddl_overflow -#define ULL_ADD_OV __builtin_uaddll_overflow - -#define UI_MUL_OV __builtin_umul_overflow -#define UL_MUL_OV __builtin_umull_overflow -#define ULL_MUL_OV __builtin_umulll_overflow -#else -#error Sorry, I do not know how to trap integer overflows with this compiler -#endif - -#if SIZEOF_SIZE_T <= SIZEOF_INT -#define SZ_ADD_OV UI_ADD_OV -#define SZ_MUL_OV UI_MUL_OV -#elif SIZEOF_SIZE_T == SIZEOF_LONG -#define SZ_ADD_OV UL_ADD_OV -#define SZ_MUL_OV UL_MUL_OV -#elif SIZEOF_SIZE_T == SIZEOF_LONG_LONG -#define SZ_ADD_OV ULL_ADD_OV -#define SZ_MUL_OV ULL_MUL_OV -#else -#error Cannot determine maximum value of size_t -#endif - -/* - Helper for allocating data structures with flexible array members. - - 'base_size' is the size of the struct itself, 'item_size' the size of a - single array element and 'nmemb' the number of elements. - - Iternally checks for arithmetic overflows when allocating the combined thing. - */ -SQFS_INTERNAL -void *alloc_flex(size_t base_size, size_t item_size, size_t nmemb); - -/* Basically the same as calloc, but *ALWAYS* does overflow checking */ -SQFS_INTERNAL -void *alloc_array(size_t item_size, size_t nmemb); - -/* - Convert back to forward slashed, remove all preceeding and trailing slashes, - collapse all sequences of slashes, remove all path components that are '.' - and returns failure state if one of the path components is '..'. - - Returns 0 on success. -*/ -SQFS_INTERNAL int canonicalize_name(char *filename); - -#endif /* UTIL_H */ |