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
|
/* Copyright 2001,2002 Roger Dingledine, Matej Pfajfar. */
/* See LICENSE for licensing information */
/* $Id$ */
#include <stdio.h>
#include <fcntl.h>
#include "or.h"
#include "../common/test.h"
void
setup_directory() {
char buf[256];
sprintf(buf, "/tmp/tor_test");
if (mkdir(buf, 0700) && errno != EEXIST)
fprintf(stderr, "Can't create directory %s", buf);
}
void
test_buffers() {
char str[256];
char str2[256];
char *buf;
int buflen, buf_datalen;
char *buf2;
int buf2len, buf2_datalen;
int s, i, j, eof;
z_compression *comp;
z_decompression *decomp;
/****
* buf_new
****/
if (buf_new(&buf, &buflen, &buf_datalen))
test_fail();
test_eq(buflen, MAX_BUF_SIZE);
test_eq(buf_datalen, 0);
/****
* read_to_buf
****/
s = open("/tmp/tor_test/data", O_WRONLY|O_CREAT|O_TRUNC, 0600);
for (j=0;j<256;++j) {
str[j] = (char)j;
}
write(s, str, 256);
close(s);
s = open("/tmp/tor_test/data", O_RDONLY, 0);
eof = 0;
i = read_to_buf(s, 10, &buf, &buflen, &buf_datalen, &eof);
test_eq(buflen, MAX_BUF_SIZE);
test_eq(buf_datalen, 10);
test_eq(eof, 0);
test_eq(i, 10);
test_memeq(str, buf, 10);
/* Test reading 0 bytes. */
i = read_to_buf(s, 0, &buf, &buflen, &buf_datalen, &eof);
test_eq(buflen, MAX_BUF_SIZE);
test_eq(buf_datalen, 10);
test_eq(eof, 0);
test_eq(i, 0);
/* Now test when buffer is filled exactly. */
buflen = 16;
i = read_to_buf(s, 6, &buf, &buflen, &buf_datalen, &eof);
test_eq(buflen, 16);
test_eq(buf_datalen, 16);
test_eq(eof, 0);
test_eq(i, 6);
test_memeq(str, buf, 16);
/* Now test when buffer is filled with more data to read. */
buflen = 32;
i = read_to_buf(s, 128, &buf, &buflen, &buf_datalen, &eof);
test_eq(buflen, 32);
test_eq(buf_datalen, 32);
test_eq(eof, 0);
test_eq(i, 16);
test_memeq(str, buf, 32);
/* Now read to eof. */
buflen = MAX_BUF_SIZE;
test_assert(buflen > 256);
i = read_to_buf(s, 1024, &buf, &buflen, &buf_datalen, &eof);
test_eq(i, (256-32));
test_eq(buflen, MAX_BUF_SIZE);
test_eq(buf_datalen, 256);
test_memeq(str, buf, 256);
test_eq(eof, 0);
i = read_to_buf(s, 1024, &buf, &buflen, &buf_datalen, &eof);
test_eq(i, 0);
test_eq(buflen, MAX_BUF_SIZE);
test_eq(buf_datalen, 256);
test_eq(eof, 1);
close(s);
/****
* find_on_inbuf
****/
test_eq(((int)'d') + 1, find_on_inbuf("abcd", 4, buf, buf_datalen));
test_eq(-1, find_on_inbuf("xyzzy", 5, buf, buf_datalen));
/* Make sure we don't look off the end of the buffef */
buf[256] = 'A';
buf[257] = 'X';
test_eq(-1, find_on_inbuf("\xff" "A", 2, buf, buf_datalen));
test_eq(-1, find_on_inbuf("AX", 2, buf, buf_datalen));
/* Make sure we use the string length */
test_eq(((int)'d')+1, find_on_inbuf("abcdX", 4, buf, buf_datalen));
/****
* fetch_from_buf
****/
memset(str2, 255, 256);
test_eq(246, fetch_from_buf(str2, 10, &buf, &buflen, &buf_datalen));
test_memeq(str2, str, 10);
test_memeq(str+10,buf,246);
test_eq(buf_datalen,246);
test_eq(-1, fetch_from_buf(str2, 247, &buf, &buflen, &buf_datalen));
test_memeq(str+10,buf,246);
test_eq(buf_datalen, 246);
test_eq(0, fetch_from_buf(str2, 246, &buf, &buflen, &buf_datalen));
test_memeq(str2, str+10, 246);
test_eq(buflen,MAX_BUF_SIZE);
test_eq(buf_datalen,0);
/****
* write_to_buf
****/
memset(buf, (int)'-', 256);
i = write_to_buf("Hello world", 11, &buf, &buflen, &buf_datalen);
test_eq(i, 11);
test_eq(buf_datalen, 11);
test_memeq(buf, "Hello world", 11);
i = write_to_buf("XYZZY", 5, &buf, &buflen, &buf_datalen);
test_eq(i, 16);
test_eq(buf_datalen, 16);
test_memeq(buf, "Hello worldXYZZY", 16);
/* Test when buffer is overfull. */
buflen = 18;
test_eq(-1, write_to_buf("This string will not fit.", 25,
&buf, &buflen, &buf_datalen));
test_eq(buf_datalen, 16);
test_memeq(buf, "Hello worldXYZZY--", 18);
buflen = MAX_BUF_SIZE;
/****
* flush_buf
****/
/***
* compress_from_buf (simple)
***/
buf_datalen = 0;
comp = compression_new();
for (i = 0; i < 20; ++i) {
write_to_buf("Hello world. ", 14, &buf, &buflen, &buf_datalen);
}
i = compress_from_buf(str, 256, &buf, &buflen, &buf_datalen, comp, 1);
test_eq(buf_datalen, 0);
/*
for (j = 0; j <i ; ++j) {
printf("%x '%c'\n", ((int) str[j])&0xff, str[j]);
}
*/
/* Now try decompressing. */
decomp = decompression_new();
if (buf_new(&buf2, &buf2len, &buf2_datalen))
test_fail();
buf_datalen = 0;
test_eq(i, write_to_buf(str, i, &buf, &buflen, &buf_datalen));
j = decompress_buf_to_buf(&buf, &buflen, &buf_datalen,
&buf2, &buf2len, &buf2_datalen,
decomp, 1);
/*XXXX check result *
/* Now compress more, into less room. */
for (i = 0; i < 20; ++i) {
write_to_buf("Hello wxrlx. ", 14, &buf, &buflen, &buf_datalen);
}
i = compress_from_buf(str, 256, &buf, &buflen, &buf_datalen, comp, 1);
test_eq(buf_datalen, 0);
compression_free(comp);
decompression_free(decomp);
buf_free(buf);
buf_free(buf2);
}
int main(int c, char**v) {
setup_directory();
test_buffers();
printf("\n");
return 0;
}
/*
Local Variables:
mode:c
indent-tabs-mode:nil
c-basic-offset:2
End:
*/
|
