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https://github.com/amadvance/snapraid.git
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135 lines
2.8 KiB
C
135 lines
2.8 KiB
C
/*
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* Copyright (C) 2011 Andrea Mazzoleni
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __UTIL_H
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#define __UTIL_H
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/****************************************************************************/
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/* string */
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/**
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* Marks the end of the current token, and move to the next one.
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*/
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static inline char* strtoken(char* s)
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{
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while (*s && *s != ' ')
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++s;
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if (*s)
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*s++ = 0;
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while (*s == ' ')
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++s;
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return s;
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}
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/**
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* Move to the next token skipping any separator.
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*/
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static inline char* strskip(char* s)
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{
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while (*s == ' ')
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++s;
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return s;
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}
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/**
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* Gets a text line from a file.
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* Returns -1 on error, 0 on oef, and 1 if more data is available.
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*/
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int strgets(char* s, unsigned size, FILE* f);
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/**
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* Convert a string to a 32 bit unsigned.
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* Returns 0 on success.
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*/
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int stru32(const char* s, uint32_t* value);
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/**
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* Convert a string to a 64 bit unsigned.
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* Returns 0 on success.
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*/
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int stru64(const char* s, uint64_t* value);
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/**
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* Encodes to hex.
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*/
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void strenchex(char* str, const void* void_data, unsigned data_len);
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/**
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* Decodes from hex.
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*/
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char* strdechex(void* void_data, unsigned data_len, char* str);
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/****************************************************************************/
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/* path */
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/**
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* Copies a path limiting the size.
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* Aborts if too long.
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*/
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void pathcpy(char* str, size_t size, const char* src);
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/**
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* Prints a path.
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* Aborts if too long.
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*/
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void pathprint(char* str, size_t size, const char* format, ...);
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/**
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* Ensures the presence of a terminating slash, if it isn't empty.
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* Aborts if too long.
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*/
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void pathslash(char* str, size_t size);
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/****************************************************************************/
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/* memory */
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/**
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* Safe malloc.
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* If no memory is available, it aborts.
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*/
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void* malloc_nofail(size_t size);
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/**
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* Safe aligned malloc.
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* If no memory is available, it aborts.
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*/
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void* malloc_nofail_align(size_t size, void** freeptr);
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/**
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* Xor two memory blocks.
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*/
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void memxor(unsigned char* xor, const unsigned char* block, unsigned size);
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/**
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* Size of the hash.
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*/
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#define HASH_SIZE 16
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/**
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* Hash kinds.
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*/
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#define HASH_MURMUR3 0
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#define HASH_MD5 1
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/**
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* Computes the HASH of a memory block.
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*/
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void memhash(unsigned kind, void* digest, const void* src, unsigned size);
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#endif
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