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
|
#include <string.h>
#include "macunpack.h"
#ifdef STF
#include "stf.h"
#include "globals.h"
#include "huffman.h"
#include "../util/curtime.h"
#include "../fileio/wrfile.h"
#include "../fileio/machdr.h"
#include "../util/util.h"
extern void de_huffman();
extern void set_huffman();
typedef struct{
int num;
int next;
} table_struct;
static table_struct table[511];
static char length[256];
static void stf_wrfile();
static void stf_wrfork();
static void stf_construct();
void stf(ibytes)
unsigned long ibytes;
{
char magic[3], fauth[5], ftype[5];
int filel, i;
unsigned int rsrcLength, dataLength;
unsigned long curtime;
set_huffman(HUFF_LE);
for(i = 0; i < 3; i++) {
magic[i] = getb(infp);
}
if(strncmp(magic, MAGIC, 3)) {
(void)fprintf(stderr, "Error in magic header.\n");
#ifdef SCAN
do_error("macunpack: Error in magic header");
#endif /* SCAN */
exit(1);
}
for(i = 0; i < INFOBYTES; i++) {
info[i] = 0;
}
filel = getb(infp);
info[I_NAMEOFF] = filel;
i = filel;
for(i = 1; i <= filel; i++) {
info[I_NAMEOFF + i] = getb(infp);
}
for(i = 0; i < 4; i++) {
info[I_TYPEOFF + i] = getb(infp);
}
for(i = 0; i < 4; i++) {
info[I_AUTHOFF + i] = getb(infp);
}
curtime = (unsigned long)time((time_t *)0) + TIMEDIFF;
put4(info + I_CTIMOFF, curtime);
put4(info + I_MTIMOFF, curtime);
rsrcLength = 0;
for(i = 0; i < 4; i++) {
rsrcLength = (rsrcLength << 8) + getb(infp);
}
put4(info + I_RLENOFF, (unsigned long)rsrcLength);
dataLength = 0;
for(i = 0; i < 4; i++) {
dataLength = (dataLength << 8) + getb(infp);
}
put4(info + I_DLENOFF, (unsigned long)dataLength);
ibytes -= filel + 20;
write_it = 1;
if(list) {
transname(info + I_NAMEOFF + 1, text, (int)info[I_NAMEOFF]);
transname(info + I_TYPEOFF, ftype, 4);
transname(info + I_AUTHOFF, fauth, 4);
do_indent(indent);
(void)fprintf(stderr,
"name=\"%s\", type=%4.4s, author=%4.4s, data=%ld, rsrc=%ld",
text, ftype, fauth, (long)dataLength, (long)rsrcLength);
if(info_only) {
write_it = 0;
}
if(query) {
write_it = do_query();
} else {
(void)fputc('\n', stderr);
}
}
stf_wrfile((unsigned long)rsrcLength, (unsigned long)dataLength, ibytes);
}
static void stf_wrfile(rsrcLength, dataLength, ibytes)
unsigned long rsrcLength, dataLength, ibytes;
{
unsigned long num = 0;
if(write_it) {
define_name(text);
start_info(info, rsrcLength, dataLength);
start_rsrc();
stf_wrfork(&num, rsrcLength, 0);
start_data();
stf_wrfork(&num, rsrcLength + dataLength, (int)(rsrcLength & 0xfff));
end_file();
} else {
for(num = 0; num < ibytes; num++) {
(void)getb(infp);
}
}
if(verbose) {
(void)fprintf(stderr, "\tHuffman compressed (%4.1f%%).\n",
100.0 * ibytes / (rsrcLength + dataLength));
}
}
static void stf_wrfork(num, towrite, offs)
unsigned long *num, towrite;
int offs;
{
int c, k, max, i, i1;
char *tmp_out_ptr;
while(*num < towrite) {
if((*num & 0xfff) == 0) {
clrhuff();
c = getb(infp) & 0xff;
k = c;
max = 0;
for(i = 0; i < k; i++) {
c = getb(infp) & 0xff;
nodelist[i + 1].flag = 1;
nodelist[i + 1].byte = i + 1;
table[i + 1].num = c;
table[i + 1].next = 0;
if(c > max) {
max = c;
}
}
for(i = k; i < 32; i++) {
nodelist[i + 1].flag = 1;
nodelist[i + 1].byte = i + 1;
table[i + 1].num = 0;
table[i + 1].next = 0;
}
k = 0;
for(i = 0; i <= max; i++) {
for(i1 = 1; i1 < 33; i1++) {
if(table[i1].num == i) {
table[k].next = i1;
k = i1;
}
}
}
stf_construct(32);
tmp_out_ptr = out_ptr;
out_ptr = length;
de_huffman((unsigned long)256);
out_ptr = tmp_out_ptr;
for(i = 1; i < 257; i++) {
table[i].num = 0x40000000 >> length[i - 1];
nodelist[i].flag = 1;
nodelist[i].byte = i - 1;
table[i].next = 0;
}
k = 0;
for(i = 1; i < 0x40000000; i <<= 1) {
for(i1 = 1; i1 < 257; i1++) {
if(table[i1].num == i) {
table[k].next = i1;
k = i1;
}
}
}
stf_construct(256);
}
i = 0x1000 - offs;
offs = 0;
if(i > towrite - *num) {
i = towrite - *num;
}
de_huffman((unsigned long)i);
*num += i;
}
}
static void stf_construct(n)
int n;
{
int i, i1, i2, j1, k;
j1 = n + 1;
i = table[0].next;
i1 = table[i].next;
while(table[i1].next != 0) {
k = table[i].num + table[i1].num;
table[j1].num = k;
nodelist[j1].flag = 0;
nodelist[j1].zero = nodelist + i;
nodelist[j1].one = nodelist + i1;
i2 = i1;
i = table[i2].next;
while(i != 0 && table[i].num <= k) {
i2 = i;
i = table[i].next;
}
table[j1].next = i;
table[i2].next = j1;
i = table[i1].next;
i1 = table[i].next;
j1++;
}
table[0].num = table[i].num + table[i1].num;
nodelist[0].flag = 0;
nodelist[0].zero = nodelist + i;
nodelist[0].one = nodelist + i1;
}
#else /* STF */
int stf; /* keep lint and some compilers happy */
#endif /* STF */
|
