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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 }
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