t_vis.c revision 1.11
1 /* $NetBSD: t_vis.c,v 1.11 2023/08/12 12:45:03 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code was contributed to The NetBSD Foundation by Christos Zoulas. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <atf-c.h> 32 33 #include <string.h> 34 #include <stdlib.h> 35 #include <locale.h> 36 #include <err.h> 37 #include <vis.h> 38 39 static int styles[] = { 40 VIS_OCTAL, 41 VIS_CSTYLE, 42 VIS_SP, 43 VIS_TAB, 44 VIS_NL, 45 VIS_WHITE, 46 VIS_SAFE, 47 #if 0 /* Not reversible */ 48 VIS_NOSLASH, 49 #endif 50 VIS_HTTP1808, 51 VIS_MIMESTYLE, 52 #if 0 /* Not supported by vis(3) */ 53 VIS_HTTP1866, 54 #endif 55 }; 56 57 #define SIZE 256 58 59 ATF_TC(strvis_basic); 60 ATF_TC_HEAD(strvis_basic, tc) 61 { 62 63 atf_tc_set_md_var(tc, "descr", "Test strvis(3)"); 64 } 65 66 ATF_TC_BODY(strvis_basic, tc) 67 { 68 char *srcbuf, *dstbuf, *visbuf; 69 unsigned int i, j; 70 71 ATF_REQUIRE((dstbuf = malloc(SIZE)) != NULL); 72 ATF_REQUIRE((srcbuf = malloc(SIZE)) != NULL); 73 ATF_REQUIRE((visbuf = malloc(SIZE * 4 + 1)) != NULL); 74 75 for (i = 0; i < SIZE; i++) 76 srcbuf[i] = (char)i; 77 78 for (i = 0; i < __arraycount(styles); i++) { 79 ATF_REQUIRE(strsvisx(visbuf, srcbuf, SIZE, styles[i], "") > 0); 80 memset(dstbuf, 0, SIZE); 81 ATF_REQUIRE(strunvisx(dstbuf, visbuf, 82 styles[i] & (VIS_HTTP1808|VIS_MIMESTYLE)) > 0); 83 for (j = 0; j < SIZE; j++) 84 if (dstbuf[j] != (char)j) 85 atf_tc_fail_nonfatal("Failed for style %x, " 86 "char %d [%d]", styles[i], j, dstbuf[j]); 87 } 88 free(dstbuf); 89 free(srcbuf); 90 free(visbuf); 91 } 92 93 ATF_TC(strvis_null); 94 ATF_TC_HEAD(strvis_null, tc) 95 { 96 atf_tc_set_md_var(tc, "descr", "Test strvis(3) NULL"); 97 } 98 99 ATF_TC_BODY(strvis_null, tc) 100 { 101 char dst[] = "fail"; 102 strvis(dst, NULL, VIS_SAFE); 103 ATF_REQUIRE(dst[0] == '\0' && dst[1] == 'a'); 104 } 105 106 ATF_TC(strvis_empty); 107 ATF_TC_HEAD(strvis_empty, tc) 108 { 109 atf_tc_set_md_var(tc, "descr", "Test strvis(3) empty"); 110 } 111 112 ATF_TC_BODY(strvis_empty, tc) 113 { 114 char dst[] = "fail"; 115 strvis(dst, "", VIS_SAFE); 116 ATF_REQUIRE(dst[0] == '\0' && dst[1] == 'a'); 117 } 118 119 ATF_TC(strunvis_hex); 120 ATF_TC_HEAD(strunvis_hex, tc) 121 { 122 atf_tc_set_md_var(tc, "descr", "Test strunvis(3) \\xXX"); 123 } 124 125 ATF_TC_BODY(strunvis_hex, tc) 126 { 127 static const struct { 128 const char *e; 129 const char *d; 130 int error; 131 } ed[] = { 132 { "\\xff", "\xff", 1 }, 133 { "\\x1", "\x1", 1 }, 134 { "\\x1\\x02", "\x1\x2", 2 }, 135 { "\\x1x", "\x1x", 2 }, 136 { "\\xx", "", -1 }, 137 }; 138 char uv[10]; 139 140 for (size_t i = 0; i < __arraycount(ed); i++) { 141 ATF_REQUIRE(strunvis(uv, ed[i].e) == ed[i].error); 142 if (ed[i].error > 0) 143 ATF_REQUIRE(memcmp(ed[i].d, uv, ed[i].error) == 0); 144 } 145 } 146 147 #ifdef VIS_NOLOCALE 148 ATF_TC(strvis_locale); 149 ATF_TC_HEAD(strvis_locale, tc) 150 { 151 atf_tc_set_md_var(tc, "descr", "Test strvis(3) with locale"); 152 } 153 154 ATF_TC_BODY(strvis_locale, tc) 155 { 156 char s[256], cd[sizeof(s) * 4 + 1], jd[sizeof(cd)], *ol; 157 int jr, cr; 158 159 for (size_t i = 0; i < sizeof(s) - 1; i++) 160 s[i] = i + 1; 161 s[sizeof(s) - 1] = '\0'; 162 163 ol = setlocale(LC_CTYPE, "ja_JP.UTF-8"); 164 ATF_REQUIRE(ol != NULL); 165 jr = strvisx(jd, s, sizeof(s), VIS_WHITE | VIS_NOLOCALE); 166 ATF_REQUIRE(jr != -1); 167 ol = strdup(ol); 168 ATF_REQUIRE(ol != NULL); 169 ATF_REQUIRE(setlocale(LC_CTYPE, "C") != NULL); 170 cr = strvisx(cd, s, sizeof(s), VIS_WHITE); 171 ATF_REQUIRE(jr == cr); 172 ATF_REQUIRE(memcmp(jd, cd, jr) == 0); 173 setlocale(LC_CTYPE, ol); 174 free(ol); 175 } 176 #endif /* VIS_NOLOCALE */ 177 178 #define STRVIS_OVERFLOW_MARKER ((char)0xff) /* Arbitrary */ 179 180 #ifdef VIS_NOLOCALE 181 ATF_TC(strvis_overflow_mb); 182 ATF_TC_HEAD(strvis_overflow_mb, tc) 183 { 184 atf_tc_set_md_var(tc, "descr", "Test strvis(3) multi-byte overflow"); 185 } 186 187 ATF_TC_BODY(strvis_overflow_mb, tc) 188 { 189 const char src[] = "\xf0\x9f\xa5\x91"; 190 /* Extra byte to detect overflow */ 191 char dst[sizeof(src) + 1]; 192 unsigned i; 193 int n; 194 195 atf_tc_expect_fail("PR lib/57573: Overflow possibilities in vis(3)"); 196 197 setlocale(LC_CTYPE, "en_US.UTF-8"); 198 199 for (i = 0; i < sizeof(dst) - 1; i++) { 200 memset(dst, STRVIS_OVERFLOW_MARKER, sizeof(dst)); 201 n = strnvis(dst, i, src, VIS_SAFE); 202 ATF_CHECK_EQ_MSG(dst[i], STRVIS_OVERFLOW_MARKER, 203 "[%u] dst=[%02hhx %02hhx %02hhx %02hhx %02hhx]" 204 " STRVIS_OVERFLOW_MARKER=%02hhx", 205 i, dst[0], dst[1], dst[2], dst[3], dst[4], 206 STRVIS_OVERFLOW_MARKER); 207 ATF_CHECK_EQ_MSG(n, -1, "[%u] n=%d", i, n); 208 } 209 210 memset(dst, STRVIS_OVERFLOW_MARKER, sizeof(dst)); 211 n = strnvis(dst, sizeof(dst) - 1, src, VIS_SAFE); 212 ATF_CHECK_EQ_MSG(dst[sizeof(dst) - 1], STRVIS_OVERFLOW_MARKER, 213 "[%u] dst=[%02hhx %02hhx %02hhx %02hhx %02hhx %02hhx]" 214 " STRVIS_OVERFLOW_MARKER=%02hhx", 215 i, dst[0], dst[1], dst[2], dst[3], dst[4], dst[5], 216 STRVIS_OVERFLOW_MARKER); 217 ATF_CHECK_EQ_MSG(n, (int)sizeof(dst) - 2, "n=%d", n); 218 } 219 #endif 220 221 ATF_TC(strvis_overflow_c); 222 ATF_TC_HEAD(strvis_overflow_c, tc) 223 { 224 atf_tc_set_md_var(tc, "descr", "Test strvis(3) C locale overflow"); 225 } 226 227 ATF_TC_BODY(strvis_overflow_c, tc) 228 { 229 const char src[] = "AAAA"; 230 /* Extra byte to detect overflow */ 231 char dst[sizeof(src) + 1]; 232 unsigned i; 233 int n; 234 235 atf_tc_expect_fail("PR lib/57573: Overflow possibilities in vis(3)"); 236 237 for (i = 0; i < sizeof(dst) - 1; i++) { 238 memset(dst, STRVIS_OVERFLOW_MARKER, sizeof(dst)); 239 n = strnvis(dst, i, src, VIS_SAFE | VIS_NOLOCALE); 240 ATF_CHECK_EQ_MSG(dst[i], STRVIS_OVERFLOW_MARKER, 241 "[%u] dst=[%02hhx %02hhx %02hhx %02hhx %02hhx]" 242 " STRVIS_OVERFLOW_MARKER=%02hhx", 243 i, dst[0], dst[1], dst[2], dst[3], dst[4], 244 STRVIS_OVERFLOW_MARKER); 245 ATF_CHECK_EQ_MSG(n, -1, "[%u] n=%d", i, n); 246 } 247 248 memset(dst, STRVIS_OVERFLOW_MARKER, sizeof(dst)); 249 n = strnvis(dst, sizeof(dst) - 1, src, VIS_SAFE | VIS_NOLOCALE); 250 ATF_CHECK_EQ_MSG(dst[sizeof(dst) - 1], STRVIS_OVERFLOW_MARKER, 251 "[%u] dst=[%02hhx %02hhx %02hhx %02hhx %02hhx %02hhx]" 252 " STRVIS_OVERFLOW_MARKER=%02hhx", 253 i, dst[0], dst[1], dst[2], dst[3], dst[4], dst[5], 254 STRVIS_OVERFLOW_MARKER); 255 ATF_CHECK_EQ_MSG(n, (int)sizeof(dst) - 2, "n=%d", n); 256 } 257 258 ATF_TP_ADD_TCS(tp) 259 { 260 261 ATF_TP_ADD_TC(tp, strvis_basic); 262 ATF_TP_ADD_TC(tp, strvis_null); 263 ATF_TP_ADD_TC(tp, strvis_empty); 264 ATF_TP_ADD_TC(tp, strunvis_hex); 265 #ifdef VIS_NOLOCALE 266 ATF_TP_ADD_TC(tp, strvis_locale); 267 ATF_TP_ADD_TC(tp, strvis_overflow_mb); 268 #endif /* VIS_NOLOCALE */ 269 ATF_TP_ADD_TC(tp, strvis_overflow_c); 270 271 return atf_no_error(); 272 } 273
Indexes created Wed Oct 01 13:09:50 GMT 2025