mirror of
https://codeberg.org/scip/pcp.git
synced 2025-12-17 20:00:58 +01:00
removed unused code (base85 and crc32)
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TLINDEN
@@ -27,9 +27,9 @@ pkgconfig_DATA = libpcp1.pc
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libpcp1_la_SOURCES = platform.c mem.c version.c \
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context.c z85.c zmq_z85.c key.c randomart.c \
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vault.c jenhash.c digital_crc32.c \
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vault.c jenhash.c \
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crypto.c ed.c keyhash.c scrypt.c \
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base85.c util.c buffer.c mgmt.c keysig.c pcpstream.c
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util.c buffer.c mgmt.c keysig.c pcpstream.c
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include_HEADERS = ../include/pcp.h
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111
libpcp/base85.c
111
libpcp/base85.c
@@ -1,111 +0,0 @@
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/*
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Source from GIT
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Licensed under the terms of the LGPL 2.1.
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*/
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#include "base85.h"
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static const char en85[] = {
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
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'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
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'U', 'V', 'W', 'X', 'Y', 'Z',
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
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'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
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'u', 'v', 'w', 'x', 'y', 'z',
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'!', '#', '$', '%', '&', '(', ')', '*', '+', '-',
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';', '<', '=', '>', '?', '@', '^', '_', '`', '{',
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'|', '}', '~'
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};
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static char de85[256];
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static void prep_base85(void)
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{
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size_t i;
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if (de85['Z'])
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return;
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for (i = 0; i < ARRAY_SIZE(en85); i++) {
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int ch = en85[i];
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de85[ch] = i + 1;
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}
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}
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int decode_85(PCPCTX *ptx, char *dst, const char *buffer, int len)
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{
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prep_base85();
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say1("len: %d\n", len);
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say2("decode 85 <%.*s>\n", len / 4 * 5, buffer);
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while (len) {
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unsigned acc = 0;
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int de, cnt = 4;
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unsigned char ch;
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do {
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ch = *buffer++;
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de = de85[ch];
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if (--de < 0)
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return error("invalid base85 alphabet <%02x> de: %d\n", ch, de);
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acc = acc * 85 + de;
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} while (--cnt);
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ch = *buffer++;
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de = de85[ch];
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if (--de < 0 && ch != '\0')
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return error("invalid base85 alphabet <%02x> left\n", ch);
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/* Detect overflow. */
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if (0xffffffff / 85 < acc ||
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0xffffffff - de < (acc *= 85))
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return error("invalid base85 sequence %.5s => %08x\n", buffer-5, acc);
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acc += de;
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/* say1(" %08x\n", acc); */
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say1("%.5s", buffer-5);
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say2(" => %08x (len: %d)\n", acc, len);
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cnt = (len < 4) ? len : 4;
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len -= cnt;
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do {
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acc = (acc << 8) | (acc >> 24);
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*dst++ = acc;
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} while (--cnt);
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}
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say("\n");
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return 0;
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}
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void encode_85(char *buf, const unsigned char *data, int bytes)
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{
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say("encode 85\n");
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int pad = bytes % 4;
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if(pad > 0) {
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pad = 4 - pad;
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say1("pad: %d\n", pad);
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data = realloc((void *)data, bytes + pad);
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memset((void *)&data[bytes], 0, pad);
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}
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while (bytes) {
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unsigned acc = 0;
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int cnt;
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for (cnt = 24; cnt >= 0; cnt -= 8) {
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unsigned ch = *data++;
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acc |= ch << cnt;
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if (--bytes == 0)
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break;
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}
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say1(" %08x", acc);
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for (cnt = 4; cnt >= 0; cnt--) {
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int val = acc % 85;
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acc /= 85;
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buf[cnt] = en85[val];
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}
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say1(" => %.5s\n", buf);
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buf += 5;
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}
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say("\n");
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*buf = 0;
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}
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@@ -1,119 +0,0 @@
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/* -*- c++ -*- */
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/*
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* Copyright 2005,2011 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio 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, or (at your option)
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* any later version.
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*
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* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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/*
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* See also ISO 3309 [ISO-3309] or ITU-T V.42 [ITU-V42] for a formal specification.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <digital_crc32.h>
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/* Automatically generated CRC function */
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/* polynomial: 0x104C11DB7 */
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unsigned int
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digital_update_crc32(unsigned int crc, const unsigned char *data, size_t len)
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{
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static const unsigned int table[256] = {
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0x00000000U,0x04C11DB7U,0x09823B6EU,0x0D4326D9U,
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0x130476DCU,0x17C56B6BU,0x1A864DB2U,0x1E475005U,
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0x2608EDB8U,0x22C9F00FU,0x2F8AD6D6U,0x2B4BCB61U,
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0x350C9B64U,0x31CD86D3U,0x3C8EA00AU,0x384FBDBDU,
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0x4C11DB70U,0x48D0C6C7U,0x4593E01EU,0x4152FDA9U,
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0x5F15ADACU,0x5BD4B01BU,0x569796C2U,0x52568B75U,
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0x6A1936C8U,0x6ED82B7FU,0x639B0DA6U,0x675A1011U,
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0x791D4014U,0x7DDC5DA3U,0x709F7B7AU,0x745E66CDU,
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0x9823B6E0U,0x9CE2AB57U,0x91A18D8EU,0x95609039U,
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0x8B27C03CU,0x8FE6DD8BU,0x82A5FB52U,0x8664E6E5U,
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0xBE2B5B58U,0xBAEA46EFU,0xB7A96036U,0xB3687D81U,
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0xAD2F2D84U,0xA9EE3033U,0xA4AD16EAU,0xA06C0B5DU,
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0xD4326D90U,0xD0F37027U,0xDDB056FEU,0xD9714B49U,
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0xC7361B4CU,0xC3F706FBU,0xCEB42022U,0xCA753D95U,
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0xF23A8028U,0xF6FB9D9FU,0xFBB8BB46U,0xFF79A6F1U,
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0xE13EF6F4U,0xE5FFEB43U,0xE8BCCD9AU,0xEC7DD02DU,
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0x34867077U,0x30476DC0U,0x3D044B19U,0x39C556AEU,
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0x278206ABU,0x23431B1CU,0x2E003DC5U,0x2AC12072U,
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0x128E9DCFU,0x164F8078U,0x1B0CA6A1U,0x1FCDBB16U,
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0x018AEB13U,0x054BF6A4U,0x0808D07DU,0x0CC9CDCAU,
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0x7897AB07U,0x7C56B6B0U,0x71159069U,0x75D48DDEU,
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0x6B93DDDBU,0x6F52C06CU,0x6211E6B5U,0x66D0FB02U,
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0x5E9F46BFU,0x5A5E5B08U,0x571D7DD1U,0x53DC6066U,
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0x4D9B3063U,0x495A2DD4U,0x44190B0DU,0x40D816BAU,
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0xACA5C697U,0xA864DB20U,0xA527FDF9U,0xA1E6E04EU,
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0xBFA1B04BU,0xBB60ADFCU,0xB6238B25U,0xB2E29692U,
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0x8AAD2B2FU,0x8E6C3698U,0x832F1041U,0x87EE0DF6U,
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0x99A95DF3U,0x9D684044U,0x902B669DU,0x94EA7B2AU,
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0xE0B41DE7U,0xE4750050U,0xE9362689U,0xEDF73B3EU,
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0xF3B06B3BU,0xF771768CU,0xFA325055U,0xFEF34DE2U,
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0xC6BCF05FU,0xC27DEDE8U,0xCF3ECB31U,0xCBFFD686U,
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0xD5B88683U,0xD1799B34U,0xDC3ABDEDU,0xD8FBA05AU,
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0x690CE0EEU,0x6DCDFD59U,0x608EDB80U,0x644FC637U,
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0x7A089632U,0x7EC98B85U,0x738AAD5CU,0x774BB0EBU,
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0x4F040D56U,0x4BC510E1U,0x46863638U,0x42472B8FU,
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0x5C007B8AU,0x58C1663DU,0x558240E4U,0x51435D53U,
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0x251D3B9EU,0x21DC2629U,0x2C9F00F0U,0x285E1D47U,
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0x36194D42U,0x32D850F5U,0x3F9B762CU,0x3B5A6B9BU,
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0x0315D626U,0x07D4CB91U,0x0A97ED48U,0x0E56F0FFU,
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0x1011A0FAU,0x14D0BD4DU,0x19939B94U,0x1D528623U,
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0xF12F560EU,0xF5EE4BB9U,0xF8AD6D60U,0xFC6C70D7U,
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0xE22B20D2U,0xE6EA3D65U,0xEBA91BBCU,0xEF68060BU,
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0xD727BBB6U,0xD3E6A601U,0xDEA580D8U,0xDA649D6FU,
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0xC423CD6AU,0xC0E2D0DDU,0xCDA1F604U,0xC960EBB3U,
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0xBD3E8D7EU,0xB9FF90C9U,0xB4BCB610U,0xB07DABA7U,
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0xAE3AFBA2U,0xAAFBE615U,0xA7B8C0CCU,0xA379DD7BU,
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0x9B3660C6U,0x9FF77D71U,0x92B45BA8U,0x9675461FU,
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0x8832161AU,0x8CF30BADU,0x81B02D74U,0x857130C3U,
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0x5D8A9099U,0x594B8D2EU,0x5408ABF7U,0x50C9B640U,
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0x4E8EE645U,0x4A4FFBF2U,0x470CDD2BU,0x43CDC09CU,
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0x7B827D21U,0x7F436096U,0x7200464FU,0x76C15BF8U,
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0x68860BFDU,0x6C47164AU,0x61043093U,0x65C52D24U,
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0x119B4BE9U,0x155A565EU,0x18197087U,0x1CD86D30U,
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0x029F3D35U,0x065E2082U,0x0B1D065BU,0x0FDC1BECU,
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0x3793A651U,0x3352BBE6U,0x3E119D3FU,0x3AD08088U,
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0x2497D08DU,0x2056CD3AU,0x2D15EBE3U,0x29D4F654U,
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0xC5A92679U,0xC1683BCEU,0xCC2B1D17U,0xC8EA00A0U,
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0xD6AD50A5U,0xD26C4D12U,0xDF2F6BCBU,0xDBEE767CU,
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0xE3A1CBC1U,0xE760D676U,0xEA23F0AFU,0xEEE2ED18U,
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0xF0A5BD1DU,0xF464A0AAU,0xF9278673U,0xFDE69BC4U,
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0x89B8FD09U,0x8D79E0BEU,0x803AC667U,0x84FBDBD0U,
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0x9ABC8BD5U,0x9E7D9662U,0x933EB0BBU,0x97FFAD0CU,
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0xAFB010B1U,0xAB710D06U,0xA6322BDFU,0xA2F33668U,
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0xBCB4666DU,0xB8757BDAU,0xB5365D03U,0xB1F740B4U,
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};
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while (len > 0)
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{
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crc = table[*data ^ ((crc >> 24) & 0xff)] ^ (crc << 8);
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data++;
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len--;
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}
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return crc;
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}
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unsigned int
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digital_crc32(const unsigned char *buf, size_t len)
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{
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return digital_update_crc32(0xffffffff, buf, len) ^ 0xffffffff;
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}
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