prosody
5862ddf71e3c
util-src/struct.c

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util-src/struct.c @ 12502:5862ddf71e3c

teal/moduleapi: Describe timer wrapper Since it's used in mod_cron
author Kim Alvefur <zash@zash.se>
date Sun, 15 May 2022 15:27:35 +0200
parent 12387:05c250fa335a
child 12575:1f6f05a98fcd
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
12354
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 /*
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2 ** {======================================================
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3 ** Library for packing/unpacking structures.
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
4 ** $Id: struct.c,v 1.8 2018/05/16 11:00:23 roberto Exp $
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5 ** See Copyright Notice at the end of this file
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6 ** =======================================================
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7 */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8 /*
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9 ** Valid formats:
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
10 ** > - big endian
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11 ** < - little endian
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12 ** ![num] - alignment
12387
05c250fa335a Spelling: Fix various spelling mistakes (thanks timeless)
Kim Alvefur <zash@zash.se>
parents: 12354
diff changeset
13 ** x - padding
12354
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14 ** b/B - signed/unsigned byte
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 ** h/H - signed/unsigned short
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 ** l/L - signed/unsigned long
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17 ** T - size_t
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 ** i/In - signed/unsigned integer with size 'n' (default is size of int)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 ** cn - sequence of 'n' chars (from/to a string); when packing, n==0 means
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 the whole string; when unpacking, n==0 means use the previous
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 read number as the string length
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 ** s - zero-terminated string
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 ** f - float
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 ** d - double
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 ** ' ' - ignored
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 #include <ctype.h>
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
30 #include <limits.h>
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 #include <stddef.h>
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 #include <string.h>
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35 #include "lua.h"
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 #include "lauxlib.h"
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39 #if (LUA_VERSION_NUM >= 502)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
41 #define luaL_register(L,n,f) luaL_newlib(L,f)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
42
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
43 #endif
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
44
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
45
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46 /* basic integer type */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47 #if !defined(STRUCT_INT)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
48 #define STRUCT_INT long
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
49 #endif
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
50
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 typedef STRUCT_INT Inttype;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
53 /* corresponding unsigned version */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
54 typedef unsigned STRUCT_INT Uinttype;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
55
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
56
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
57 /* maximum size (in bytes) for integral types */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
58 #define MAXINTSIZE 32
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
59
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
60 /* is 'x' a power of 2? */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
61 #define isp2(x) ((x) > 0 && ((x) & ((x) - 1)) == 0)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
62
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
63 /* dummy structure to get alignment requirements */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
64 struct cD {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
65 char c;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
66 double d;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
67 };
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
68
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
69
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
70 #define PADDING (sizeof(struct cD) - sizeof(double))
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
71 #define MAXALIGN (PADDING > sizeof(int) ? PADDING : sizeof(int))
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
72
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
73
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
74 /* endian options */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
75 #define BIG 0
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
76 #define LITTLE 1
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
77
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
78
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
79 static union {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
80 int dummy;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
81 char endian;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
82 } const native = {1};
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
83
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
84
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
85 typedef struct Header {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
86 int endian;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
87 int align;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
88 } Header;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
89
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
90
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
91 static int getnum (const char **fmt, int df) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
92 if (!isdigit(**fmt)) /* no number? */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
93 return df; /* return default value */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
94 else {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
95 int a = 0;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
96 do {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
97 a = a*10 + *((*fmt)++) - '0';
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
98 } while (isdigit(**fmt));
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
99 return a;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
100 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
101 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
102
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
103
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
104 #define defaultoptions(h) ((h)->endian = native.endian, (h)->align = 1)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
105
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
106
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
107
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
108 static size_t optsize (lua_State *L, char opt, const char **fmt) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
109 switch (opt) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
110 case 'B': case 'b': return sizeof(char);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
111 case 'H': case 'h': return sizeof(short);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
112 case 'L': case 'l': return sizeof(long);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
113 case 'T': return sizeof(size_t);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
114 case 'f': return sizeof(float);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
115 case 'd': return sizeof(double);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
116 case 'x': return 1;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
117 case 'c': return getnum(fmt, 1);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
118 case 'i': case 'I': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
119 int sz = getnum(fmt, sizeof(int));
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
120 if (sz > MAXINTSIZE)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
121 luaL_error(L, "integral size %d is larger than limit of %d",
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
122 sz, MAXINTSIZE);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
123 return sz;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
124 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
125 default: return 0; /* other cases do not need alignment */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
126 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
127 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
128
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
129
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
130 /*
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
131 ** return number of bytes needed to align an element of size 'size'
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
132 ** at current position 'len'
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
133 */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
134 static int gettoalign (size_t len, Header *h, int opt, size_t size) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
135 if (size == 0 || opt == 'c') return 0;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
136 if (size > (size_t)h->align)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
137 size = h->align; /* respect max. alignment */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
138 return (size - (len & (size - 1))) & (size - 1);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
139 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
140
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
141
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
142 /*
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
143 ** options to control endianess and alignment
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
144 */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
145 static void controloptions (lua_State *L, int opt, const char **fmt,
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
146 Header *h) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
147 switch (opt) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
148 case ' ': return; /* ignore white spaces */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
149 case '>': h->endian = BIG; return;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
150 case '<': h->endian = LITTLE; return;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
151 case '!': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
152 int a = getnum(fmt, MAXALIGN);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
153 if (!isp2(a))
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
154 luaL_error(L, "alignment %d is not a power of 2", a);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
155 h->align = a;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
156 return;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
157 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
158 default: {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
159 const char *msg = lua_pushfstring(L, "invalid format option '%c'", opt);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
160 luaL_argerror(L, 1, msg);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
161 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
162 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
163 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
164
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
165
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
166 static void putinteger (lua_State *L, luaL_Buffer *b, int arg, int endian,
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
167 int size) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
168 lua_Number n = luaL_checknumber(L, arg);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
169 Uinttype value;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
170 char buff[MAXINTSIZE];
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
171 if (n < 0)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
172 value = (Uinttype)(Inttype)n;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
173 else
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
174 value = (Uinttype)n;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
175 if (endian == LITTLE) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
176 int i;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
177 for (i = 0; i < size; i++) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
178 buff[i] = (value & 0xff);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
179 value >>= 8;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
180 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
181 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
182 else {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
183 int i;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
184 for (i = size - 1; i >= 0; i--) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
185 buff[i] = (value & 0xff);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
186 value >>= 8;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
187 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
188 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
189 luaL_addlstring(b, buff, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
190 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
191
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
192
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
193 static void correctbytes (char *b, int size, int endian) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
194 if (endian != native.endian) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
195 int i = 0;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
196 while (i < --size) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
197 char temp = b[i];
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
198 b[i++] = b[size];
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
199 b[size] = temp;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
200 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
201 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
202 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
203
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
204
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
205 static int b_pack (lua_State *L) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
206 luaL_Buffer b;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
207 const char *fmt = luaL_checkstring(L, 1);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
208 Header h;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
209 int arg = 2;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
210 size_t totalsize = 0;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
211 defaultoptions(&h);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
212 lua_pushnil(L); /* mark to separate arguments from string buffer */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
213 luaL_buffinit(L, &b);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
214 while (*fmt != '\0') {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
215 int opt = *fmt++;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
216 size_t size = optsize(L, opt, &fmt);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
217 int toalign = gettoalign(totalsize, &h, opt, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
218 totalsize += toalign;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
219 while (toalign-- > 0) luaL_addchar(&b, '\0');
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
220 switch (opt) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
221 case 'b': case 'B': case 'h': case 'H':
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
222 case 'l': case 'L': case 'T': case 'i': case 'I': { /* integer types */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
223 putinteger(L, &b, arg++, h.endian, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
224 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
225 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
226 case 'x': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
227 luaL_addchar(&b, '\0');
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
228 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
229 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
230 case 'f': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
231 float f = (float)luaL_checknumber(L, arg++);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
232 correctbytes((char *)&f, size, h.endian);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
233 luaL_addlstring(&b, (char *)&f, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
234 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
235 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
236 case 'd': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
237 double d = luaL_checknumber(L, arg++);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
238 correctbytes((char *)&d, size, h.endian);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
239 luaL_addlstring(&b, (char *)&d, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
240 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
241 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
242 case 'c': case 's': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
243 size_t l;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
244 const char *s = luaL_checklstring(L, arg++, &l);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
245 if (size == 0) size = l;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
246 luaL_argcheck(L, l >= (size_t)size, arg, "string too short");
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
247 luaL_addlstring(&b, s, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
248 if (opt == 's') {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
249 luaL_addchar(&b, '\0'); /* add zero at the end */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
250 size++;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
251 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
252 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
253 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
254 default: controloptions(L, opt, &fmt, &h);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
255 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
256 totalsize += size;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
257 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
258 luaL_pushresult(&b);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
259 return 1;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
260 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
261
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
262
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
263 static lua_Number getinteger (const char *buff, int endian,
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
264 int issigned, int size) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
265 Uinttype l = 0;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
266 int i;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
267 if (endian == BIG) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
268 for (i = 0; i < size; i++) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
269 l <<= 8;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
270 l |= (Uinttype)(unsigned char)buff[i];
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
271 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
272 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
273 else {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
274 for (i = size - 1; i >= 0; i--) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
275 l <<= 8;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
276 l |= (Uinttype)(unsigned char)buff[i];
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
277 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
278 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
279 if (!issigned)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
280 return (lua_Number)l;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
281 else { /* signed format */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
282 Uinttype mask = (Uinttype)(~((Uinttype)0)) << (size*8 - 1);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
283 if (l & mask) /* negative value? */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
284 l |= mask; /* signal extension */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
285 return (lua_Number)(Inttype)l;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
286 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
287 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
288
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
289
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
290 static int b_unpack (lua_State *L) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
291 Header h;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
292 const char *fmt = luaL_checkstring(L, 1);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
293 size_t ld;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
294 const char *data = luaL_checklstring(L, 2, &ld);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
295 size_t pos = (size_t)luaL_optinteger(L, 3, 1) - 1;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
296 int n = 0; /* number of results */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
297 luaL_argcheck(L, pos <= ld, 3, "initial position out of string");
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
298 defaultoptions(&h);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
299 while (*fmt) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
300 int opt = *fmt++;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
301 size_t size = optsize(L, opt, &fmt);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
302 pos += gettoalign(pos, &h, opt, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
303 luaL_argcheck(L, size <= ld - pos, 2, "data string too short");
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
304 /* stack space for item + next position */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
305 luaL_checkstack(L, 2, "too many results");
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
306 switch (opt) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
307 case 'b': case 'B': case 'h': case 'H':
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
308 case 'l': case 'L': case 'T': case 'i': case 'I': { /* integer types */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
309 int issigned = islower(opt);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
310 lua_Number res = getinteger(data+pos, h.endian, issigned, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
311 lua_pushnumber(L, res); n++;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
312 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
313 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
314 case 'x': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
315 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
316 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
317 case 'f': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
318 float f;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
319 memcpy(&f, data+pos, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
320 correctbytes((char *)&f, sizeof(f), h.endian);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
321 lua_pushnumber(L, f); n++;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
322 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
323 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
324 case 'd': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
325 double d;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
326 memcpy(&d, data+pos, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
327 correctbytes((char *)&d, sizeof(d), h.endian);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
328 lua_pushnumber(L, d); n++;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
329 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
330 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
331 case 'c': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
332 if (size == 0) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
333 if (n == 0 || !lua_isnumber(L, -1))
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
334 luaL_error(L, "format 'c0' needs a previous size");
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
335 size = lua_tonumber(L, -1);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
336 lua_pop(L, 1); n--;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
337 luaL_argcheck(L, size <= ld - pos, 2, "data string too short");
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
338 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
339 lua_pushlstring(L, data+pos, size); n++;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
340 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
341 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
342 case 's': {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
343 const char *e = (const char *)memchr(data+pos, '\0', ld - pos);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
344 if (e == NULL)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
345 luaL_error(L, "unfinished string in data");
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
346 size = (e - (data+pos)) + 1;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
347 lua_pushlstring(L, data+pos, size - 1); n++;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
348 break;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
349 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
350 default: controloptions(L, opt, &fmt, &h);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
351 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
352 pos += size;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
353 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
354 lua_pushinteger(L, pos + 1); /* next position */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
355 return n + 1;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
356 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
357
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
358
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
359 static int b_size (lua_State *L) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
360 Header h;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
361 const char *fmt = luaL_checkstring(L, 1);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
362 size_t pos = 0;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
363 defaultoptions(&h);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
364 while (*fmt) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
365 int opt = *fmt++;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
366 size_t size = optsize(L, opt, &fmt);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
367 pos += gettoalign(pos, &h, opt, size);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
368 if (opt == 's')
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
369 luaL_argerror(L, 1, "option 's' has no fixed size");
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
370 else if (opt == 'c' && size == 0)
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
371 luaL_argerror(L, 1, "option 'c0' has no fixed size");
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
372 if (!isalnum(opt))
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
373 controloptions(L, opt, &fmt, &h);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
374 pos += size;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
375 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
376 lua_pushinteger(L, pos);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
377 return 1;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
378 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
379
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
380 /* }====================================================== */
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
381
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
382
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
383
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
384 static const struct luaL_Reg thislib[] = {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
385 {"pack", b_pack},
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
386 {"unpack", b_unpack},
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
387 {"size", b_size},
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
388 {NULL, NULL}
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
389 };
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
390
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
391
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
392 LUALIB_API int luaopen_util_struct (lua_State *L);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
393
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
394 LUALIB_API int luaopen_util_struct (lua_State *L) {
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
395 luaL_register(L, "struct", thislib);
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
396 return 1;
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
397 }
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
398
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
399
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
400 /******************************************************************************
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
401 * Copyright (C) 2010-2018 Lua.org, PUC-Rio. All rights reserved.
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
402 *
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
403 * Permission is hereby granted, free of charge, to any person obtaining
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
404 * a copy of this software and associated documentation files (the
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
405 * "Software"), to deal in the Software without restriction, including
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
406 * without limitation the rights to use, copy, modify, merge, publish,
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
407 * distribute, sublicense, and/or sell copies of the Software, and to
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
408 * permit persons to whom the Software is furnished to do so, subject to
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
409 * the following conditions:
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
410 *
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
411 * The above copyright notice and this permission notice shall be
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
412 * included in all copies or substantial portions of the Software.
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
413 *
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
414 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
415 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
416 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
417 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
418 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
419 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
420 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
421 ******************************************************************************/
3ce3633527af util.struct: Import Roberto 'struct' library v0.3
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
422