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
|
/* $OpenBSD: vis_test.c,v 1.5 2017/07/27 15:08:37 bluhm Exp $ */
/* Public domain. 2005, Otto Moerbeek */
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <vis.h>
#define NTESTS 8000
#define NCH 800
char ibuf[NCH];
char obuf[NCH * 4];
char rbuf[NCH * 4];
int flags[] = {
VIS_ALL,
VIS_GLOB,
VIS_TAB,
VIS_NL,
VIS_DQ,
VIS_WHITE,
VIS_SAFE
};
char *flagname[] = {
"VIS_ALL",
"VIS_GLOB",
"VIS_TAB",
"VIS_NL",
"VIS_DQ",
"VIS_WHITE",
"VIS_SAFE"
};
int title;
void
dotitle(int i, int j)
{
if (title == 0)
printf("%d %s:", i, flagname[j]);
title = 1;
}
int
main(int argc, char *argv[])
{
char inp[UCHAR_MAX + 1];
char out[4 * UCHAR_MAX + 1];
int i, j, fail = 0;
ssize_t owant, o, r;
for (i = 0; i <= UCHAR_MAX; i++) {
inp[i] = i;
}
strvisx(out, inp, UCHAR_MAX + 1, 0);
printf("%s\n", out);
for (i = 0; i < NTESTS; i++) {
arc4random_buf(ibuf, sizeof(ibuf) - 1);
ibuf[sizeof(ibuf) - 1] = '\0';
title = 0;
for (j = 0; j < sizeof(flags)/sizeof(flags[0]); j++) {
owant = sizeof(ibuf);
o = strnvis(obuf, ibuf, owant, flags[j]);
if (o >= owant) {
owant = o + 1;
o = strnvis(obuf, ibuf, owant, flags[j]);
if (o > owant) {
dotitle(i, j);
printf("HUGE overflow\n");
}
if (o < owant - 1) {
dotitle(i, j);
printf("over-estimate of overflow\n");
}
} else if (o > strlen(ibuf) * 4) {
dotitle(i, j);
printf("wants too much %zd %zu\n",
o, strlen(ibuf) * 4);
continue;
}
r = strnunvis(rbuf, obuf, sizeof rbuf);
if (r == -1) {
dotitle(i, j);
printf("cannot decode\n");
printf("%s\n", obuf);
fail = 1;
} else if (r != strlen(ibuf)) {
dotitle(i, j);
printf("rlen %zd != inlen %zu\n",
r, strlen(ibuf));
printf("%s\n", obuf);
printf("%s\n", rbuf);
fail = 1;
} else if (bcmp(ibuf, rbuf, r)) {
dotitle(i, j);
printf("strings are different\n");
printf("%s\n", ibuf);
printf("%s\n", rbuf);
fail = 1;
}
}
}
exit(fail);
}
|
