1 /* $NetBSD: t_vis.c,v 1.9 2017/01/10 15:16:57 christos 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 #ifdef __FreeBSD__ 179 #define STRVIS_OVERFLOW_MARKER ((char)0xff) /* Arbitrary */ 180 181 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 int n; 193 194 setlocale(LC_CTYPE, "en_US.UTF-8"); 195 196 /* Arbitrary */ 197 memset(dst, STRVIS_OVERFLOW_MARKER, sizeof(dst)); 198 199 /* 200 * If we only provide four bytes of buffer, we shouldn't be able encode 201 * a full 4-byte sequence. 202 */ 203 n = strnvis(dst, 4, src, VIS_SAFE); 204 ATF_REQUIRE(dst[4] == STRVIS_OVERFLOW_MARKER); 205 ATF_REQUIRE(n == -1); 206 207 n = strnvis(dst, sizeof(src), src, VIS_SAFE); 208 ATF_REQUIRE(n == sizeof(src) - 1); 209 } 210 211 ATF_TC(strvis_overflow_c); 212 ATF_TC_HEAD(strvis_overflow_c, tc) 213 { 214 atf_tc_set_md_var(tc, "descr", "Test strvis(3) C locale overflow"); 215 } 216 217 ATF_TC_BODY(strvis_overflow_c, tc) 218 { 219 const char src[] = "AAAA"; 220 /* Extra byte to detect overflow */ 221 char dst[sizeof(src) + 1]; 222 int n; 223 224 /* Arbitrary */ 225 memset(dst, STRVIS_OVERFLOW_MARKER, sizeof(dst)); 226 227 /* 228 * If we only provide four bytes of buffer, we shouldn't be able encode 229 * 4 bytes of input. 230 */ 231 n = strnvis(dst, 4, src, VIS_SAFE | VIS_NOLOCALE); 232 ATF_REQUIRE(dst[4] == STRVIS_OVERFLOW_MARKER); 233 ATF_REQUIRE(n == -1); 234 235 n = strnvis(dst, sizeof(src), src, VIS_SAFE | VIS_NOLOCALE); 236 ATF_REQUIRE(n == sizeof(src) - 1); 237 } 238 #endif /* __FreeBSD__ */ 239 240 ATF_TP_ADD_TCS(tp) 241 { 242 243 ATF_TP_ADD_TC(tp, strvis_basic); 244 ATF_TP_ADD_TC(tp, strvis_null); 245 ATF_TP_ADD_TC(tp, strvis_empty); 246 ATF_TP_ADD_TC(tp, strunvis_hex); 247 #ifdef VIS_NOLOCALE 248 ATF_TP_ADD_TC(tp, strvis_locale); 249 #endif /* VIS_NOLOCALE */ 250 #ifdef __FreeBSD__ 251 ATF_TP_ADD_TC(tp, strvis_overflow_mb); 252 ATF_TP_ADD_TC(tp, strvis_overflow_c); 253 #endif 254 255 return atf_no_error(); 256 } 257