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https://git.wownero.com/wownero/wownero-puddle.git
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- binary data now explicitly unsigned char* to avoid confusion - rpc_get_request_body now using stecpy to avoid repeated strlen
115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/*
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Copyright (c) 2014-2019, The Monero Project
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Parts of the project are originally copyright (c) 2012-2013 The Cryptonote
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developers.
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*/
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#include <assert.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <ctype.h>
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#include "util.h"
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int
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is_hex_string(const char *str)
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{
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if (strlen(str) == 0)
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return -1;
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const char *cp = str;
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while (*cp)
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{
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if (!isxdigit(*cp++))
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return -2;
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}
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return 0;
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}
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void
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hex_to_bin(const char *hex, const size_t hex_len,
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unsigned char *bin, const size_t bin_size)
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{
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assert(hex_len % 2 == 0);
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assert(bin_size >= hex_len >> 1);
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const char *ph = hex;
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unsigned char *end = bin + bin_size;
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while (*ph && bin < end)
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{
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sscanf(ph, "%2hhx", bin++);
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ph += 2;
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}
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}
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void
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bin_to_hex(const unsigned char *bin, const size_t bin_size,
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char *hex, const size_t hex_size)
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{
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assert(bin_size << 1 == hex_size);
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const char *hex_chars = "0123456789abcdef";
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char *ph = hex;
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const unsigned char *pb = bin;
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for (size_t i=0; i<bin_size; i++)
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{
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*ph++ = hex_chars[(*pb >> 4) & 0xF];
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*ph++ = hex_chars[(*pb++) & 0xF];
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}
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}
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void
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reverse_bin(unsigned char *bin, const size_t len)
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{
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size_t start = 0;
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size_t end = len-1;
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unsigned char temp;
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while (start < end)
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{
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temp = bin[start];
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bin[start] = bin[end];
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bin[end] = temp;
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start++;
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end--;
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}
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}
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char *
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stecpy(char *dst, const char *src, const char *end)
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{
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while (*src && dst < end)
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*dst++ = *src++;
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if (dst < end)
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*dst = '\0';
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return dst;
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}
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