From 2c997f95cb167e9023c1a44abaeda4ea80bbc7d3 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Thu, 8 Aug 2013 22:39:50 +0000
Subject: moved usb-i2c-sl018 to tuer-rfid

git-svn-id: https://svn.spreadspace.org/avr/trunk@216 aa12f405-d877-488e-9caf-2d797e2a1cc7
---
 usb-i2c-sl018/update-keys.c | 138 --------------------------------------------
 1 file changed, 138 deletions(-)
 delete mode 100644 usb-i2c-sl018/update-keys.c

(limited to 'usb-i2c-sl018/update-keys.c')

diff --git a/usb-i2c-sl018/update-keys.c b/usb-i2c-sl018/update-keys.c
deleted file mode 100644
index d4dfd06..0000000
--- a/usb-i2c-sl018/update-keys.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- *  spreadspace avr utils
- *
- *
- *  Copyright (C) 2013 Christian Pointner <equinox@spreadspace.org>
- *
- *  This file is part of spreadspace avr utils.
- *
- *  spreadspace avr utils is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  any later version.
- *
- *  spreadspace avr utils is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdint.h>
-#include <ctype.h>
-#include <stdio.h>
-#include <termios.h>
-
-#define EEPROM_SIZE 1024
-typedef uint8_t keyslot_t[8];
-
-/* this generates a Fletcher8 checksum  */
-/* code from: http://stackoverflow.com/questions/13491700/8-bit-fletcher-checksum-of-16-byte-data */
-uint8_t generate_csum(keyslot_t data)
-{
-  uint16_t sum1 = 0xf, sum2 = 0xf, len = sizeof(keyslot_t)-1;
-  do { sum2 += ( sum1 += *data++ ); } while (--len);
-  return sum2<<4 | sum1;
-}
-
-int send_key(keyslot_t key, FILE* dev)
-{
-  fwrite(key, sizeof(keyslot_t), 1, dev);
-  fflush(dev);
-  char tmp;
-  while(fread(&tmp, 1, 1, dev)) {
-    fwrite(&tmp, 1, 1, stdout);
-    if(tmp == 0) return 1;
-    if(tmp == '.') return 0;
-  }
-  return 0;
-}
-
-int main(int argc, char* argv[])
-{
-  if(argc<2) {
-    fprintf(stderr, "Usage: update-keys <device>\n");
-    return -1;
-  }
-  
-  FILE* dev;
-  dev = fopen(argv[1], "r+");
-  if(!dev) {
-    fprintf(stderr, "fopen failed!\n");
-    return -2;
-  }
-
-  int fd = fileno(dev);
-  struct termios t;
-  tcgetattr(fd, &t);
-  t.c_lflag &= ~(ICANON | ECHO);
-  t.c_iflag &= ~(ICRNL | INLCR | IXON | IXOFF);
-  cfmakeraw(&t);
-  tcflush(fd, TCIOFLUSH);
-  tcsetattr(fd, TCSANOW, &t);
-
-  fprintf(dev, "e");
-
-  char* line = NULL;
-  size_t len = 0;
-  int line_num = 0;
-  keyslot_t key;
-  int key_num = 0;
-
-  for(;;) {
-    ssize_t ret = getline(&line, &len, stdin);
-    if(ret <= 0) break;
-    line_num++;
-
-    int i;
-    for(i=0; i<len; ++i) {
-      if(!isxdigit(line[i])) {
-        line[i] = 0;
-        break;
-      }
-    }
-    if(i & 1 || i == 0 || i > (sizeof(keyslot_t)-1)*2) {
-      fprintf(stderr, "ignoring invalid key (odd number of digits or empty string or too long) at line %d\n", line_num);
-      continue;
-    }
-    uint8_t tmp[3];
-    int j;
-    tmp[2] = 0;
-    for(j = 0; j<(i/2); ++j) {
-      tmp[0] = line[j*2];
-      tmp[1] = line[j*2 + 1];
-      key[j] = (char)strtoul(tmp, NULL, 16);
-    }
-    for(j=i/2; j < sizeof(keyslot_t)-1; ++j) {
-      key[j] = 0;
-    }
-    key[sizeof(keyslot_t)-1] = generate_csum(key);
-    if(send_key(key, dev)) {
-      fprintf(stderr, "send_key failed at keyslot %d\n", key_num);
-      return 1;
-    }
-
-    key_num++;
-    if(key_num > EEPROM_SIZE/sizeof(keyslot_t)) {
-      fprintf(stderr, "reached maximum number of key slots (%d), will ignore remaining keys\n", EEPROM_SIZE/sizeof(keyslot_t));
-      break;
-    }
-  }
-  printf("\nread %d keys from STDIN - filling rest of keystore with invalid keys\n", key_num);
-  
-  int i;
-  for(i=0; i<=sizeof(keyslot_t)-1; ++i) key[i] = 0xFF;
-  for(i=key_num; i < EEPROM_SIZE/sizeof(keyslot_t); ++i) {
-    if(send_key(key, dev)) {
-      fprintf(stderr, "send_key failed at keyslot %d\n", key_num);
-      return 1;
-    }
-    key_num++;
-  }
-
-  printf("\nwrite of %d keys finished\n", key_num);
-
-  return 0;
-}
-- 
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