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