cvs.zerfleddert.de Git - proxmark3-svn/blob - client/util.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // utilities
   9 //-----------------------------------------------------------------------------
  10
  11 #include "util.h"
  12
  13 #ifndef _WIN32
  14 #include <termios.h>
  15 #include <sys/ioctl.h>
  16
  17 int ukbhit(void)
  18 {
  19   int cnt = 0;
  20   int error;
  21   static struct termios Otty, Ntty;
  22
  23
  24   tcgetattr( 0, &Otty);
  25   Ntty = Otty;
  26
  27   Ntty.c_iflag          = 0;       /* input mode                */
  28   Ntty.c_oflag          = 0;       /* output mode               */
  29   Ntty.c_lflag         &= ~ICANON; /* raw mode */
  30   Ntty.c_cc[VMIN]       = CMIN;    /* minimum time to wait      */
  31   Ntty.c_cc[VTIME]      = CTIME;   /* minimum characters to wait for */
  32
  33   if (0 == (error = tcsetattr(0, TCSANOW, &Ntty))) {
  34     error += ioctl(0, FIONREAD, &cnt);
  35     error += tcsetattr(0, TCSANOW, &Otty);
  36   }
  37
  38   return ( error == 0 ? cnt : -1 );
  39 }
  40
  41 #else
  42 #include <conio.h>
  43 int ukbhit(void) {
  44         return kbhit();
  45 }
  46 #endif
  47
  48 // log files functions
  49 void AddLogLine(char *fileName, char *extData, char *c) {
  50         FILE *fLog = NULL;
  51
  52         fLog = fopen(fileName, "a");
  53         if (!fLog) {
  54                 printf("Could not append log file %s", fileName);
  55                 return;
  56         }
  57
  58         fprintf(fLog, "%s", extData);
  59         fprintf(fLog, "%s\n", c);
  60         fclose(fLog);
  61 }
  62
  63 void AddLogHex(char *fileName, char *extData, const uint8_t * data, const size_t len){
  64         AddLogLine(fileName, extData, sprint_hex(data, len));
  65 }
  66
  67 void AddLogUint64(char *fileName, char *extData, const uint64_t data) {
  68   char buf[100] = {0};
  69         sprintf(buf, "%x%x", (unsigned int)((data & 0xFFFFFFFF00000000) >> 32), (unsigned int)(data & 0xFFFFFFFF));
  70         AddLogLine(fileName, extData, buf);
  71 }
  72
  73 void AddLogCurrentDT(char *fileName) {
  74         char buff[20];
  75         struct tm *curTime;
  76
  77         time_t now = time(0);
  78         curTime = gmtime(&now);
  79
  80         strftime (buff, sizeof(buff), "%Y-%m-%d %H:%M:%S", curTime);
  81         AddLogLine(fileName, "\nanticollision: ", buff);
  82 }
  83
  84 void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount) {
  85         char * fnameptr = fileName;
  86         memset(fileName, 0x00, 200);
  87
  88         for (int j = 0; j < byteCount; j++, fnameptr += 2)
  89                 sprintf(fnameptr, "%02x", uid[j]);
  90         sprintf(fnameptr, "%s", ext);
  91 }
  92
  93 // printing and converting functions
  94
  95 void print_hex(const uint8_t * data, const size_t len)
  96 {
  97         size_t i;
  98
  99         for (i=0; i < len; i++)
 100                 printf("%02x ", data[i]);
 101
 102         printf("\n");
 103 }
 104
 105 char * sprint_hex(const uint8_t * data, const size_t len) {
 106         static char buf[1024];
 107         char * tmp = buf;
 108         size_t i;
 109
 110         for (i=0; i < len && i < 1024/3; i++, tmp += 3)
 111                 sprintf(tmp, "%02x ", data[i]);
 112
 113         return buf;
 114 }
 115
 116 char * sprint_bin(const uint8_t * data, const size_t len) {
 117         static char buf[1024];
 118         char * tmp = buf;
 119         size_t i;
 120
 121         for (i=0; i < len && i < 1024; i++, tmp++)
 122                 sprintf(tmp, "%u", data[i]);
 123
 124         return buf;
 125 }
 126
 127 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
 128 {
 129         while (len--) {
 130                 dest[len] = (uint8_t) n;
 131                 n >>= 8;
 132         }
 133 }
 134
 135 uint64_t bytes_to_num(uint8_t* src, size_t len)
 136 {
 137         uint64_t num = 0;
 138         while (len--)
 139         {
 140                 num = (num << 8) | (*src);
 141                 src++;
 142         }
 143         return num;
 144 }
 145
 146 //assumes little endian
 147 char * printBits(size_t const size, void const * const ptr)
 148 {
 149     unsigned char *b = (unsigned char*) ptr;
 150     unsigned char byte;
 151         static char buf[1024];
 152         char * tmp = buf;
 153     int i, j;
 154
 155     for (i=size-1;i>=0;i--)
 156     {
 157         for (j=7;j>=0;j--)
 158         {
 159             byte = b[i] & (1<<j);
 160             byte >>= j;
 161             sprintf(tmp, "%u", byte);
 162                         tmp++;
 163         }
 164     }
 165         return buf;
 166 }
 167
 168 //  -------------------------------------------------------------------------
 169 //  string parameters lib
 170 //  -------------------------------------------------------------------------
 171
 172 //  -------------------------------------------------------------------------
 173 //  line     - param line
 174 //  bg, en   - symbol numbers in param line of beginning an ending parameter
 175 //  paramnum - param number (from 0)
 176 //  -------------------------------------------------------------------------
 177 int param_getptr(const char *line, int *bg, int *en, int paramnum)
 178 {
 179         int i;
 180         int len = strlen(line);
 181
 182         *bg = 0;
 183         *en = 0;
 184
 185   // skip spaces
 186         while (line[*bg] ==' ' || line[*bg]=='\t') (*bg)++;
 187         if (*bg >= len) {
 188                 return 1;
 189         }
 190
 191         for (i = 0; i < paramnum; i++) {
 192                 while (line[*bg]!=' ' && line[*bg]!='\t' && line[*bg] != '\0') (*bg)++;
 193                 while (line[*bg]==' ' || line[*bg]=='\t') (*bg)++;
 194
 195                 if (line[*bg] == '\0') return 1;
 196         }
 197
 198         *en = *bg;
 199         while (line[*en] != ' ' && line[*en] != '\t' && line[*en] != '\0') (*en)++;
 200
 201         (*en)--;
 202
 203         return 0;
 204 }
 205
 206 char param_getchar(const char *line, int paramnum)
 207 {
 208         int bg, en;
 209
 210         if (param_getptr(line, &bg, &en, paramnum)) return 0x00;
 211
 212         return line[bg];
 213 }
 214
 215 uint8_t param_get8(const char *line, int paramnum)
 216 {
 217         return param_get8ex(line, paramnum, 10, 0);
 218 }
 219
 220 uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base)
 221 {
 222         int bg, en;
 223
 224         if (!param_getptr(line, &bg, &en, paramnum))
 225                 return strtoul(&line[bg], NULL, base) & 0xff;
 226         else
 227                 return deflt;
 228 }
 229
 230 uint32_t param_get32ex(const char *line, int paramnum, int deflt, int base)
 231 {
 232         int bg, en;
 233
 234         if (!param_getptr(line, &bg, &en, paramnum))
 235                 return strtoul(&line[bg], NULL, base);
 236         else
 237                 return deflt;
 238 }
 239
 240 uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base)
 241 {
 242         int bg, en;
 243
 244         if (!param_getptr(line, &bg, &en, paramnum))
 245                 return strtoull(&line[bg], NULL, base);
 246         else
 247                 return deflt;
 248
 249         return 0;
 250 }
 251
 252 int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
 253 {
 254         int bg, en, temp, i;
 255
 256         if (hexcnt % 2)
 257                 return 1;
 258
 259         if (param_getptr(line, &bg, &en, paramnum)) return 1;
 260
 261         if (en - bg + 1 != hexcnt)
 262                 return 1;
 263
 264         for(i = 0; i < hexcnt; i += 2) {
 265                 if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) )   return 1;
 266
 267                 sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp);
 268                 data[i / 2] = temp & 0xff;
 269         }
 270
 271         return 0;
 272 }
 273
 274 int param_getstr(const char *line, int paramnum, char * str)
 275 {
 276         int bg, en;
 277
 278         if (param_getptr(line, &bg, &en, paramnum)) return 0;
 279
 280         memcpy(str, line + bg, en - bg + 1);
 281         str[en - bg + 1] = 0;
 282
 283         return en - bg + 1;
 284 }