1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
|
#include <MESA/MESA_htable.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <tfe_utils.h>
#include <time.h>
#include <assert.h>
#include <netinet/ip.h>
#include <netinet/ether.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <unistd.h>
//functioned as strdup, for dictator compatible.
char* tfe_strdup(const char* s)
{
char*d=NULL;
if(s==NULL)
{
return NULL;
}
d=(char*)malloc(strlen(s)+1);
memcpy(d,s,strlen(s)+1);
return d;
}
char *tfe_thread_safe_ctime(const time_t *tp, char *buf, int len)
{
struct tm local_time;
time_t now;
static unsigned char weekday_str[7][4] =
{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
static unsigned char month_str[12][4] = {"Jan", "Feb", "Mar", "Apr",
"May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
time(&now);
if(NULL == (localtime_r(&now, &local_time)))
return NULL;
len = snprintf(buf, len, "%s %s %d %02d:%02d:%02d %d", weekday_str[local_time.tm_wday],
month_str[local_time.tm_mon], local_time.tm_mday, local_time.tm_hour, local_time.tm_min, local_time.tm_sec, local_time.tm_year+1900);
return buf;
}
//replacement of glibc scandir, to adapt dictator malloc wrap
int tfe_scandir(const char *dir, struct dirent ***namelist,
int(*filter)(const struct dirent *),
int(*compar)(const void *, const void *))
{
DIR * od;
int n = 0;
int ENLARGE_STEP=1024;
int DIR_ENT_SIZE=ENLARGE_STEP;
struct dirent ** list = NULL;
struct dirent * p;
struct dirent entry,*result;
if((dir == NULL) || (namelist == NULL))
return -1;
od = opendir(dir);
if(od == NULL)
return -1;
list = (struct dirent **)malloc(DIR_ENT_SIZE*sizeof(struct dirent *));
while(0==readdir_r(od,&entry,&result))
{
if(result==NULL)
{
break;
}
if( filter && !filter(&entry))
continue;
p = (struct dirent *)malloc(sizeof(struct dirent));
memcpy((void *)p,(void *)(&entry),sizeof(struct dirent));
list[n] = p;
n++;
if(n >= DIR_ENT_SIZE)
{
DIR_ENT_SIZE+=ENLARGE_STEP;
list=(struct dirent **)realloc((void*)list,DIR_ENT_SIZE*sizeof(struct dirent *));
}
}
closedir(od);
*namelist = list;
if(compar)
qsort((void *)*namelist,n,sizeof(struct dirent *),compar);
return n;
}
char *tfe_read_file(const char *filename, size_t *filelen)
{
FILE *file = NULL;
long length = 0;
char *content = NULL;
size_t read_chars = 0;
file = fopen(filename, "rb");
if (file == NULL)
{
goto cleanup;
}
if (fseek(file, 0, SEEK_END) != 0)
{
goto cleanup;
}
length = ftell(file);
if (length < 0)
{
goto cleanup;
}
if (fseek(file, 0, SEEK_SET) != 0)
{
goto cleanup;
}
/* allocate content buffer */
content = (char*)malloc((size_t)length + sizeof(""));
if (content == NULL)
{
goto cleanup;
}
/* read the file into memory */
read_chars = fread(content, sizeof(char), (size_t)length, file);
if ((long)read_chars != length)
{
free(content);
content = NULL;
goto cleanup;
}
*filelen = read_chars;
content[read_chars] = '\0';
cleanup:
if (file != NULL)
{
fclose(file);
}
return content;
}
static int tfe_decode_base64_internal(u_char *dst, u_char *src, const u_char *basis)
{
size_t len;
u_char *d, *s;
for (len = 0; len < strlen((char *)src); len++)
{
if (src[len] == '=')
{
break;
}
if (basis[src[len]] == 77)
{
return 0;
}
}
if (len % 4 == 1)
{
return 0;
}
s = src;
d = dst;
while (len > 3)
{
*d++ = (u_char) (basis[s[0]] << 2 | basis[s[1]] >> 4);
*d++ = (u_char) (basis[s[1]] << 4 | basis[s[2]] >> 2);
*d++ = (u_char) (basis[s[2]] << 6 | basis[s[3]]);
s += 4;
len -= 4;
}
if (len > 1)
{
*d++ = (u_char) (basis[s[0]] << 2 | basis[s[1]] >> 4);
}
if (len > 2)
{
*d++ = (u_char) (basis[s[1]] << 4 | basis[s[2]] >> 2);
}
return d - dst;
}
int tfe_decode_base64url(u_char *dst, u_char *src)
{
static u_char basis64[] = {
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 63,
77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77
};
return tfe_decode_base64_internal(dst, src, basis64);
}
/******************************************************************************
* sids
******************************************************************************/
void sids_write_once(struct sids *dst, struct sids *src)
{
if (dst && src)
{
if (dst->num == 0 && src->num > 0)
{
sids_copy(dst, src);
}
}
}
void sids_copy(struct sids *dst, struct sids *src)
{
if (dst && src)
{
dst->num = src->num;
memcpy(dst->elems, src->elems, sizeof(dst->elems[0]) * dst->num);
}
}
/******************************************************************************
* route_ctx
******************************************************************************/
int route_ctx_is_empty(struct route_ctx *ctx)
{
if (ctx->len == 0)
{
return 1;
}
else
{
return 0;
}
}
void route_ctx_copy(struct route_ctx *dst, struct route_ctx *src)
{
memcpy(dst->data, src->data, src->len);
dst->len = src->len;
}
/******************************************************************************
* protocol
******************************************************************************/
#define CHECKSUM_CARRY(x) (x = (x >> 16) + (x & 0xffff), (~(x + (x >> 16)) & 0xffff))
static int checksum(u_int16_t *addr, int len)
{
int sum = 0;
int nleft = len;
u_int16_t ans = 0;
u_int16_t *w = addr;
while (nleft > 1)
{
sum += *w++;
nleft -= 2;
}
if (nleft == 1)
{
*(char *)(&ans) = *(char *)w;
sum += ans;
}
return sum;
}
int str_to_mac(const char *str, char *mac_buff)
{
if (sscanf(str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", &(mac_buff[0]), &(mac_buff[1]), &(mac_buff[2]), &(mac_buff[3]), &(mac_buff[4]), &(mac_buff[5])) == 6)
{
return 0;
}
else
{
return -1;
}
}
int get_mac_by_device_name(const char *dev_name, char *mac_buff)
{
int fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
if (fd == -1)
{
return -1;
}
struct ifreq ifr;
memset(&ifr, 0, sizeof(struct ifreq));
strcpy(ifr.ifr_name, dev_name);
if (ioctl(fd, SIOCGIFHWADDR, &ifr) != 0)
{
close(fd);
return -1;
}
unsigned char *mac = (unsigned char *)ifr.ifr_hwaddr.sa_data;
memcpy(mac_buff, mac, 6);
close(fd);
return 0;
}
|
