1 |
elmex |
1.1 |
/* |
2 |
root |
1.68 |
* This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 |
root |
1.101 |
* |
4 |
root |
1.108 |
* Copyright (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team |
5 |
root |
1.104 |
* Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
6 |
root |
1.101 |
* |
7 |
root |
1.89 |
* Deliantra is free software: you can redistribute it and/or modify it under |
8 |
|
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* the terms of the Affero GNU General Public License as published by the |
9 |
|
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* Free Software Foundation, either version 3 of the License, or (at your |
10 |
|
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* option) any later version. |
11 |
root |
1.101 |
* |
12 |
root |
1.60 |
* This program is distributed in the hope that it will be useful, |
13 |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 |
|
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* GNU General Public License for more details. |
16 |
root |
1.101 |
* |
17 |
root |
1.89 |
* You should have received a copy of the Affero GNU General Public License |
18 |
|
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* and the GNU General Public License along with this program. If not, see |
19 |
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* <http://www.gnu.org/licenses/>. |
20 |
root |
1.101 |
* |
21 |
root |
1.68 |
* The authors can be reached via e-mail to <support@deliantra.net> |
22 |
pippijn |
1.39 |
*/ |
23 |
elmex |
1.1 |
|
24 |
|
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/* |
25 |
root |
1.92 |
* General convenience functions for deliantra. |
26 |
elmex |
1.1 |
*/ |
27 |
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28 |
root |
1.37 |
#include <cstdlib> |
29 |
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#include <sys/types.h> |
30 |
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#include <unistd.h> |
31 |
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#include <sys/time.h> |
32 |
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#include <time.h> |
33 |
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#include <signal.h> |
34 |
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35 |
elmex |
1.1 |
#include <global.h> |
36 |
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#include <material.h> |
37 |
sf-marcmagus |
1.87 |
#include <object.h> |
38 |
elmex |
1.1 |
|
39 |
root |
1.79 |
#include <sys/time.h> |
40 |
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#include <sys/resource.h> |
41 |
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42 |
root |
1.4 |
#include <glib.h> |
43 |
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|
44 |
root |
1.63 |
refcnt_base::refcnt_t refcnt_dummy; |
45 |
root |
1.74 |
ssize_t slice_alloc; |
46 |
root |
1.40 |
|
47 |
sf-marcmagus |
1.87 |
/******************************************************************************/ |
48 |
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|
49 |
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/* Checks a player-provided string which will become the msg property of |
50 |
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* an object for dangerous input. |
51 |
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*/ |
52 |
root |
1.105 |
bool |
53 |
sf-marcmagus |
1.87 |
msg_is_safe (const char *msg) |
54 |
|
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{ |
55 |
|
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bool safe = true; |
56 |
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|
57 |
|
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/* Trying to cheat by getting data into the object */ |
58 |
root |
1.88 |
if (!strncmp (msg, "endmsg", sizeof ("endmsg") - 1) |
59 |
|
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|| strstr (msg, "\nendmsg")) |
60 |
sf-marcmagus |
1.87 |
safe = false; |
61 |
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|
62 |
|
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/* Trying to make the object talk, and potentially access arbitrary code */ |
63 |
|
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if (object::msg_has_dialogue (msg)) |
64 |
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safe = false; |
65 |
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|
66 |
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return safe; |
67 |
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} |
68 |
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|
69 |
root |
1.14 |
///////////////////////////////////////////////////////////////////////////// |
70 |
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|
71 |
root |
1.37 |
void |
72 |
|
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fork_abort (const char *msg) |
73 |
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{ |
74 |
|
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if (!fork ()) |
75 |
|
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{ |
76 |
root |
1.80 |
signal (SIGINT , SIG_IGN); |
77 |
|
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signal (SIGTERM, SIG_IGN); |
78 |
|
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signal (SIGABRT, SIG_IGN); |
79 |
root |
1.79 |
|
80 |
root |
1.81 |
signal (SIGSEGV, SIG_DFL); |
81 |
root |
1.103 |
signal (SIGFPE , SIG_DFL); |
82 |
|
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#ifdef SIGBUS |
83 |
root |
1.81 |
signal (SIGBUS , SIG_DFL); |
84 |
root |
1.103 |
#endif |
85 |
root |
1.81 |
signal (SIGILL , SIG_DFL); |
86 |
|
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signal (SIGTRAP, SIG_DFL); |
87 |
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|
88 |
root |
1.52 |
// try to put corefiles into a subdirectory, if existing, to allow |
89 |
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// an administrator to reduce the I/O load. |
90 |
|
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chdir ("cores"); |
91 |
root |
1.79 |
|
92 |
|
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// try to detach us from as many external dependencies as possible |
93 |
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// as coredumping can take time by closing all fd's. |
94 |
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{ |
95 |
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struct rlimit lim; |
96 |
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97 |
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if (getrlimit (RLIMIT_NOFILE, &lim)) |
98 |
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lim.rlim_cur = 1024; |
99 |
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100 |
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for (int i = 0; i < lim.rlim_cur; ++i) |
101 |
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close (i); |
102 |
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} |
103 |
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104 |
root |
1.81 |
{ |
105 |
|
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sigset_t empty; |
106 |
|
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sigemptyset (&empty); |
107 |
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sigprocmask (SIG_SETMASK, &empty, 0); |
108 |
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} |
109 |
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|
110 |
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// try to coredump with SIGTRAP |
111 |
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kill (getpid (), SIGTRAP); |
112 |
root |
1.37 |
abort (); |
113 |
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} |
114 |
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|
115 |
root |
1.38 |
LOG (llevError, "fork abort: %s\n", msg); |
116 |
root |
1.37 |
} |
117 |
root |
1.38 |
|
118 |
root |
1.99 |
void * |
119 |
root |
1.106 |
salloc_ (int n) |
120 |
root |
1.10 |
{ |
121 |
root |
1.25 |
void *ptr = g_slice_alloc (n); |
122 |
root |
1.13 |
|
123 |
root |
1.23 |
if (!ptr) |
124 |
root |
1.13 |
throw std::bad_alloc (); |
125 |
root |
1.4 |
|
126 |
root |
1.74 |
slice_alloc += n; |
127 |
root |
1.23 |
return ptr; |
128 |
|
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} |
129 |
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|
130 |
root |
1.99 |
void * |
131 |
root |
1.106 |
salloc_ (int n, void *src) |
132 |
root |
1.23 |
{ |
133 |
root |
1.25 |
void *ptr = salloc_ (n); |
134 |
root |
1.23 |
|
135 |
root |
1.24 |
if (src) |
136 |
root |
1.25 |
memcpy (ptr, src, n); |
137 |
root |
1.24 |
else |
138 |
root |
1.25 |
memset (ptr, 0, n); |
139 |
root |
1.23 |
|
140 |
|
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return ptr; |
141 |
root |
1.3 |
} |
142 |
root |
1.11 |
|
143 |
root |
1.69 |
/******************************************************************************/ |
144 |
|
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|
145 |
root |
1.72 |
#if DEBUG_SALLOC |
146 |
root |
1.69 |
|
147 |
root |
1.70 |
#define MAGIC 0xa1b2c35543deadLL |
148 |
root |
1.69 |
|
149 |
root |
1.99 |
void * |
150 |
|
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g_slice_alloc (unsigned long size) |
151 |
root |
1.69 |
{ |
152 |
|
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unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long)); |
153 |
|
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*p++ = size ^ MAGIC; |
154 |
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//fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D |
155 |
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return (void *)p; |
156 |
|
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} |
157 |
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|
158 |
root |
1.99 |
void * |
159 |
|
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g_slice_alloc0 (unsigned long size) |
160 |
root |
1.69 |
{ |
161 |
|
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return memset (g_slice_alloc (size), 0, size); |
162 |
|
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} |
163 |
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|
164 |
root |
1.99 |
void |
165 |
|
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g_slice_free1 (unsigned long size, void *ptr) |
166 |
root |
1.69 |
{ |
167 |
root |
1.74 |
//fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D |
168 |
root |
1.109 |
if (ecb_expect_true (ptr)) |
169 |
root |
1.69 |
{ |
170 |
|
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unsigned long *p = (unsigned long *)ptr; |
171 |
|
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unsigned long s = *--p ^ MAGIC; |
172 |
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|
173 |
root |
1.71 |
if (size != (unsigned long)(*p ^ MAGIC)) |
174 |
root |
1.74 |
{ |
175 |
|
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LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s); |
176 |
|
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abort (); |
177 |
|
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} |
178 |
root |
1.69 |
|
179 |
|
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*p = MAGIC; |
180 |
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|
181 |
|
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(g_slice_free1)(s + sizeof (unsigned long), p); |
182 |
|
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} |
183 |
|
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} |
184 |
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185 |
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#endif |
186 |
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187 |
|
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/******************************************************************************/ |
188 |
|
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|
189 |
root |
1.99 |
refcnt_buf::refcnt_buf (size_t size) |
190 |
|
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{ |
191 |
root |
1.102 |
static uint32_t empty_buf [2] = { 0, 1 }; // 2 == never deallocated |
192 |
|
|
data = (char *)empty_buf + overhead; |
193 |
|
|
assert (overhead == sizeof (empty_buf)); |
194 |
|
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inc (); |
195 |
root |
1.99 |
} |
196 |
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|
197 |
|
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refcnt_buf::refcnt_buf (void *data, size_t size) |
198 |
|
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{ |
199 |
|
|
_alloc (size); |
200 |
|
|
memcpy (this->data, data, size); |
201 |
|
|
} |
202 |
|
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|
203 |
|
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refcnt_buf::~refcnt_buf () |
204 |
|
|
{ |
205 |
|
|
dec (); |
206 |
|
|
} |
207 |
|
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|
208 |
root |
1.102 |
void |
209 |
|
|
refcnt_buf::_dealloc () |
210 |
|
|
{ |
211 |
|
|
sfree<char> (data - overhead, size () + overhead); |
212 |
|
|
} |
213 |
|
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|
214 |
root |
1.99 |
refcnt_buf & |
215 |
|
|
refcnt_buf::operator =(const refcnt_buf &src) |
216 |
|
|
{ |
217 |
|
|
dec (); |
218 |
|
|
data = src.data; |
219 |
root |
1.102 |
inc (); |
220 |
root |
1.99 |
return *this; |
221 |
|
|
} |
222 |
|
|
|
223 |
|
|
/******************************************************************************/ |
224 |
|
|
|
225 |
root |
1.86 |
int |
226 |
|
|
assign (char *dst, const char *src, int maxsize) |
227 |
root |
1.11 |
{ |
228 |
|
|
if (!src) |
229 |
|
|
src = ""; |
230 |
|
|
|
231 |
|
|
int len = strlen (src); |
232 |
|
|
|
233 |
root |
1.86 |
if (len >= maxsize) |
234 |
root |
1.11 |
{ |
235 |
root |
1.86 |
if (maxsize <= 4) |
236 |
root |
1.11 |
{ |
237 |
root |
1.86 |
memset (dst, '.', maxsize - 2); |
238 |
|
|
dst [maxsize - 1] = 0; |
239 |
root |
1.11 |
} |
240 |
|
|
else |
241 |
|
|
{ |
242 |
root |
1.86 |
memcpy (dst, src, maxsize - 4); |
243 |
|
|
memcpy (dst + maxsize - 4, "...", 4); |
244 |
root |
1.11 |
} |
245 |
root |
1.86 |
|
246 |
|
|
len = maxsize; |
247 |
root |
1.11 |
} |
248 |
|
|
else |
249 |
root |
1.86 |
memcpy (dst, src, ++len); |
250 |
|
|
|
251 |
|
|
return len; |
252 |
root |
1.11 |
} |
253 |
|
|
|
254 |
root |
1.90 |
char * |
255 |
|
|
vformat (const char *format, va_list ap) |
256 |
|
|
{ |
257 |
root |
1.96 |
static dynbuf_text bufs[8]; |
258 |
|
|
static int bufidx; |
259 |
|
|
|
260 |
|
|
dynbuf_text &buf = bufs [++bufidx & 7]; |
261 |
|
|
|
262 |
|
|
buf.clear (); |
263 |
root |
1.90 |
buf.vprintf (format, ap); |
264 |
|
|
return buf; |
265 |
|
|
} |
266 |
|
|
|
267 |
|
|
char * |
268 |
root |
1.51 |
format (const char *format, ...) |
269 |
|
|
{ |
270 |
root |
1.65 |
va_list ap; |
271 |
|
|
va_start (ap, format); |
272 |
root |
1.90 |
char *buf = vformat (format, ap); |
273 |
root |
1.65 |
va_end (ap); |
274 |
|
|
|
275 |
|
|
return buf; |
276 |
root |
1.51 |
} |
277 |
|
|
|
278 |
root |
1.99 |
tstamp |
279 |
|
|
now () |
280 |
root |
1.23 |
{ |
281 |
|
|
struct timeval tv; |
282 |
|
|
|
283 |
|
|
gettimeofday (&tv, 0); |
284 |
|
|
return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6); |
285 |
|
|
} |
286 |
root |
1.17 |
|
287 |
root |
1.32 |
int |
288 |
|
|
similar_direction (int a, int b) |
289 |
|
|
{ |
290 |
|
|
if (!a || !b) |
291 |
|
|
return 0; |
292 |
|
|
|
293 |
|
|
int diff = (b - a) & 7; |
294 |
|
|
return diff <= 1 || diff >= 7; |
295 |
|
|
} |
296 |
|
|
|
297 |
root |
1.48 |
/* crc32 0xdebb20e3 table and supplementary functions. */ |
298 |
|
|
extern const uint32_t crc_32_tab[256] = |
299 |
|
|
{ |
300 |
|
|
0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL, |
301 |
|
|
0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL, |
302 |
|
|
0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL, |
303 |
|
|
0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL, |
304 |
|
|
0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL, |
305 |
|
|
0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL, |
306 |
|
|
0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL, |
307 |
|
|
0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL, |
308 |
|
|
0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL, |
309 |
|
|
0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL, |
310 |
|
|
0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL, |
311 |
|
|
0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL, |
312 |
|
|
0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL, |
313 |
|
|
0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL, |
314 |
|
|
0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL, |
315 |
|
|
0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL, |
316 |
|
|
0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL, |
317 |
|
|
0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL, |
318 |
|
|
0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL, |
319 |
|
|
0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL, |
320 |
|
|
0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL, |
321 |
|
|
0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL, |
322 |
|
|
0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL, |
323 |
|
|
0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL, |
324 |
|
|
0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL, |
325 |
|
|
0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL, |
326 |
|
|
0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL, |
327 |
|
|
0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL, |
328 |
|
|
0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL, |
329 |
|
|
0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL, |
330 |
|
|
0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL, |
331 |
|
|
0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL, |
332 |
|
|
0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL, |
333 |
|
|
0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL, |
334 |
|
|
0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL, |
335 |
|
|
0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL, |
336 |
|
|
0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL, |
337 |
|
|
0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL, |
338 |
|
|
0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL, |
339 |
|
|
0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL, |
340 |
|
|
0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL, |
341 |
|
|
0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL, |
342 |
|
|
0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL, |
343 |
|
|
0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL, |
344 |
|
|
0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL, |
345 |
|
|
0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL, |
346 |
|
|
0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL, |
347 |
|
|
0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL, |
348 |
|
|
0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL, |
349 |
|
|
0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, |
350 |
|
|
0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, |
351 |
|
|
0x2d02ef8dL |
352 |
|
|
}; |
353 |
|
|
|
354 |
root |
1.99 |
void |
355 |
|
|
thread::start (void *(*start_routine)(void *), void *arg) |
356 |
root |
1.73 |
{ |
357 |
root |
1.75 |
pthread_attr_t attr; |
358 |
|
|
|
359 |
|
|
pthread_attr_init (&attr); |
360 |
|
|
pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
361 |
|
|
pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096 |
362 |
|
|
? sizeof (long) * 4096 : PTHREAD_STACK_MIN); |
363 |
|
|
#ifdef PTHREAD_SCOPE_PROCESS |
364 |
|
|
pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
365 |
|
|
#endif |
366 |
|
|
|
367 |
root |
1.73 |
sigset_t fullsigset, oldsigset; |
368 |
|
|
sigfillset (&fullsigset); |
369 |
|
|
|
370 |
|
|
pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset); |
371 |
|
|
|
372 |
root |
1.75 |
if (pthread_create (&id, &attr, start_routine, arg)) |
373 |
root |
1.73 |
cleanup ("unable to create a new thread"); |
374 |
|
|
|
375 |
|
|
pthread_sigmask (SIG_SETMASK, &oldsigset, 0); |
376 |
|
|
} |
377 |
root |
1.75 |
|