1 /*
2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
5 * 1.0 of the CDDL.
6 *
7 * A full copy of the text of the CDDL should have accompanied this
8 * source. A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
10 */
11
12 /*
13 * Copyright 2016 Tom Lane <tgl@sss.pgh.pa.us>
14 * Copyright 2017 Nexenta Systems, Inc.
15 */
16
17 #include <err.h>
18 #include <errno.h>
19 #include <locale.h>
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #include <time.h>
24
25 /*
26 * #6907: generate random UTF8 strings, strxfrm'ing them in process.
27 * Walk through comparing each string with all strings, and checking
28 * that strcoll() and strcmp() for strxfrm'ed data produce same results.
29 */
30 #define NSTRINGS 2000
31 #define MAXSTRLEN 20
32 #define MAXXFRMLEN (MAXSTRLEN * 20)
33
34 typedef struct {
35 char sval[MAXSTRLEN];
36 char xval[MAXXFRMLEN];
37 } cstr;
38
39 int
main(void)40 main(void)
41 {
42 cstr data[NSTRINGS];
43 char *curloc;
44 int i, j;
45
46 if ((curloc = setlocale(LC_ALL, "")) == NULL)
47 err(1, "setlocale");
48
49 /* Ensure new random() values on every run */
50 srandom((unsigned int) time(NULL));
51
52 /* Generate random UTF8 strings of length less than MAXSTRLEN bytes */
53 for (i = 0; i < NSTRINGS; i++) {
54 char *p;
55 int len;
56
57 again:
58 p = data[i].sval;
59 len = 1 + (random() % (MAXSTRLEN - 1));
60 while (len > 0) {
61 int c;
62
63 /*
64 * Generate random printable char in ISO8859-1 range.
65 * Bias towards producing a lot of spaces.
66 */
67 if ((random() % 16) < 3) {
68 c = ' ';
69 } else {
70 do {
71 c = random() & 0xFF;
72 } while (!((c >= ' ' && c <= 127) ||
73 (c >= 0xA0 && c <= 0xFF)));
74 }
75
76 if (c <= 127) {
77 *p++ = c;
78 len--;
79 } else {
80 if (len < 2)
81 break;
82 /* Poor man's utf8-ification */
83 *p++ = 0xC0 + (c >> 6);
84 len--;
85 *p++ = 0x80 + (c & 0x3F);
86 len--;
87 }
88 }
89 *p = '\0';
90
91 /* strxfrm() each string as we produce it */
92 errno = 0;
93 if (strxfrm(data[i].xval, data[i].sval,
94 MAXXFRMLEN) >= MAXXFRMLEN) {
95 errx(1, "strxfrm() result for %d-length string "
96 "exceeded %d bytes", (int)strlen(data[i].sval),
97 MAXXFRMLEN);
98 }
99 /* Amend strxfrm() failing for certain characters (#7962) */
100 if (errno != 0)
101 goto again;
102 }
103
104 for (i = 0; i < NSTRINGS; i++) {
105 for (j = 0; j < NSTRINGS; j++) {
106 int sr = strcoll(data[i].sval, data[j].sval);
107 int sx = strcmp(data[i].xval, data[j].xval);
108
109 if ((sr * sx < 0) || (sr * sx == 0 && sr + sx != 0)) {
110 errx(1, "%s: diff for \"%s\" and \"%s\"",
111 curloc, data[i].sval, data[j].sval);
112 }
113 }
114 }
115
116 return (0);
117 }
118