unitldns.c revision 1.1.1.3
1/* 2 * testcode/unitldns.c - unit test for ldns routines. 3 * 4 * Copyright (c) 2014, NLnet Labs. All rights reserved. 5 * 6 * This software is open source. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * Redistributions of source code must retain the above copyright notice, 13 * this list of conditions and the following disclaimer. 14 * 15 * Redistributions in binary form must reproduce the above copyright notice, 16 * this list of conditions and the following disclaimer in the documentation 17 * and/or other materials provided with the distribution. 18 * 19 * Neither the name of the NLNET LABS nor the names of its contributors may 20 * be used to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 29 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 30 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 * 35 */ 36/** 37 * \file 38 * Calls ldns unit tests. Exits with code 1 on a failure. 39 */ 40 41#include "config.h" 42#include "util/log.h" 43#include "testcode/unitmain.h" 44#include "sldns/sbuffer.h" 45#include "sldns/str2wire.h" 46#include "sldns/wire2str.h" 47#include "sldns/parseutil.h" 48 49/** verbose this unit test */ 50static int vbmp = 0; 51 52/** print buffer to hex into string */ 53static void 54buf_to_hex(uint8_t* b, size_t blen, char* s, size_t slen) 55{ 56 const char* h = "0123456789ABCDEF"; 57 size_t i; 58 if(slen < blen*2+2 && vbmp) printf("hexstring buffer too small\n"); 59 unit_assert(slen >= blen*2+2); 60 for(i=0; i<blen; i++) { 61 s[i*2] = h[(b[i]&0xf0)>>4]; 62 s[i*2+1] = h[b[i]&0x0f]; 63 } 64 s[blen*2] = '\n'; 65 s[blen*2+1] = 0; 66} 67 68/** Transform input. 69 * @param txt_in: input text format. 70 * @param wire1: output wireformat in hex (txt_in converted to wire). 71 * @param txt_out: output text format (converted from wire_out). 72 * @param wire2: output wireformat in hex, txt_out converted back to wireformat. 73 * @param bufs: size of the text buffers. 74 */ 75static void 76rr_transform(char* txt_in, char* wire1, char* txt_out, char* wire2, 77 size_t bufs) 78{ 79 uint8_t b[65536]; 80 size_t len; 81 int err; 82 83 len = sizeof(b); 84 err = sldns_str2wire_rr_buf(txt_in, b, &len, NULL, 3600, 85 NULL, 0, NULL, 0); 86 if(err != 0) { 87 if(vbmp) printf("sldns_str2wire_rr_buf, pos %d: %s\n", 88 LDNS_WIREPARSE_OFFSET(err), 89 sldns_get_errorstr_parse(err)); 90 } 91 unit_assert(err == 0); 92 buf_to_hex(b, len, wire1, bufs); 93 if(vbmp) printf("wire1: %s", wire1); 94 95 err = sldns_wire2str_rr_buf(b, len, txt_out, bufs); 96 unit_assert(err < (int)bufs && err > 0); 97 if(vbmp) printf("txt: %s", txt_out); 98 99 len = sizeof(b); 100 err = sldns_str2wire_rr_buf(txt_out, b, &len, NULL, 3600, 101 NULL, 0, NULL, 0); 102 if(err != 0) { 103 if(vbmp) printf("sldns_str2wire_rr_buf-2, pos %d: %s\n", 104 LDNS_WIREPARSE_OFFSET(err), 105 sldns_get_errorstr_parse(err)); 106 } 107 unit_assert(err == 0); 108 buf_to_hex(b, len, wire2, bufs); 109 if(vbmp) printf("wire2: %s", wire2); 110} 111 112/** Check if results are correct */ 113static void 114rr_checks(char* wire_chk, char* txt_chk, char* txt_out, char* wire_out, 115 char* back) 116{ 117#ifdef __APPLE__ 118 /* the wiretostr on ipv6 is weird on apple, we cannot check it. 119 * skip AAAA on OSX */ 120 if(strstr(txt_out, "IN AAAA")) 121 txt_out = txt_chk; /* skip this test, but test wirefmt */ 122 /* so we know that txt_out back to wire is the same */ 123#endif 124 125 if(strcmp(txt_chk, txt_out) != 0 && vbmp) 126 printf("txt different\n"); 127 if(strcmp(wire_chk, wire_out) != 0 && vbmp) 128 printf("wire1 different\n"); 129 if(strcmp(wire_chk, back) != 0 && vbmp) 130 printf("wire2 different\n"); 131 132 unit_assert(strcmp(txt_chk, txt_out) == 0); 133 unit_assert(strcmp(wire_chk, wire_out) == 0); 134 unit_assert(strcmp(wire_chk, back) == 0); 135} 136 137/** read rrs to and from string, and wireformat 138 * Skips empty lines and comments. 139 * @param input: input file with text format. 140 * @param check: check file with hex and then textformat 141 */ 142static void 143rr_test_file(const char* input, const char* check) 144{ 145 size_t bufs = 131072; 146 FILE* inf, *chf, *of; 147 int lineno = 0, chlineno = 0; 148 char* txt_in = (char*)malloc(bufs); 149 char* txt_out = (char*)malloc(bufs); 150 char* txt_chk = (char*)malloc(bufs); 151 char* wire_out = (char*)malloc(bufs); 152 char* wire_chk = (char*)malloc(bufs); 153 char* back = (char*)malloc(bufs); 154 if(!txt_in || !txt_out || !txt_chk || !wire_out || !wire_chk || !back) 155 fatal_exit("malloc failure"); 156 inf = fopen(input, "r"); 157 if(!inf) fatal_exit("cannot open %s: %s", input, strerror(errno)); 158 chf = fopen(check, "r"); 159 if(!chf) fatal_exit("cannot open %s: %s", check, strerror(errno)); 160 161 of = NULL; 162 if(0) { 163 /* debug: create check file */ 164 of = fopen("outputfile", "w"); 165 if(!of) fatal_exit("cannot write output: %s", strerror(errno)); 166 } 167 168 while(fgets(txt_in, (int)bufs, inf)) { 169 lineno++; 170 if(vbmp) printf("\n%s:%d %s", input, lineno, txt_in); 171 /* skip empty lines and comments */ 172 if(txt_in[0] == 0 || txt_in[0] == '\n' || txt_in[0] == ';') 173 continue; 174 /* read check lines */ 175 if(!fgets(wire_chk, (int)bufs, chf)) 176 printf("%s too short\n", check); 177 if(!fgets(txt_chk, (int)bufs, chf)) 178 printf("%s too short\n", check); 179 chlineno += 2; 180 if(vbmp) printf("%s:%d %s", check, chlineno-1, wire_chk); 181 if(vbmp) printf("%s:%d %s", check, chlineno, txt_chk); 182 /* generate results */ 183 rr_transform(txt_in, wire_out, txt_out, back, bufs); 184 /* checks */ 185 if(of) { 186 fprintf(of, "%s%s", wire_out, txt_out); 187 } else { 188 rr_checks(wire_chk, txt_chk, txt_out, wire_out, back); 189 } 190 } 191 192 if(of) fclose(of); 193 fclose(inf); 194 fclose(chf); 195 free(txt_in); 196 free(txt_out); 197 free(txt_chk); 198 free(wire_out); 199 free(wire_chk); 200 free(back); 201} 202 203#define xstr(s) str(s) 204#define str(s) #s 205 206#define SRCDIRSTR xstr(SRCDIR) 207 208/** read rrs to and from string, to and from wireformat */ 209static void 210rr_tests(void) 211{ 212 rr_test_file(SRCDIRSTR "/testdata/test_ldnsrr.1", 213 SRCDIRSTR "/testdata/test_ldnsrr.c1"); 214 rr_test_file(SRCDIRSTR "/testdata/test_ldnsrr.2", 215 SRCDIRSTR "/testdata/test_ldnsrr.c2"); 216 rr_test_file(SRCDIRSTR "/testdata/test_ldnsrr.3", 217 SRCDIRSTR "/testdata/test_ldnsrr.c3"); 218 rr_test_file(SRCDIRSTR "/testdata/test_ldnsrr.4", 219 SRCDIRSTR "/testdata/test_ldnsrr.c4"); 220 rr_test_file(SRCDIRSTR "/testdata/test_ldnsrr.5", 221 SRCDIRSTR "/testdata/test_ldnsrr.c5"); 222} 223 224/** test various base64 decoding options */ 225static void 226b64_test(void) 227{ 228 /* "normal" b64 alphabet, with padding */ 229 char* p1 = "aGVsbG8="; /* "hello" */ 230 char* p2 = "aGVsbG8+"; /* "hello>" */ 231 char* p3 = "aGVsbG8/IQ=="; /* "hello?!" */ 232 char* p4 = "aGVsbG8"; /* "hel" + extra garbage */ 233 234 /* base64 url, without padding */ 235 char* u1 = "aGVsbG8"; /* "hello" */ 236 char* u2 = "aGVsbG8-"; /* "hello>" */ 237 char* u3 = "aGVsbG8_IQ"; /* "hello?!" */ 238 char* u4 = "aaaaa"; /* garbage */ 239 240 char target[128]; 241 size_t tarsize = 128; 242 int result; 243 244 memset(target, 0, sizeof(target)); 245 result = sldns_b64_pton(p1, (uint8_t*)target, tarsize); 246 unit_assert(result == strlen("hello") && strcmp(target, "hello") == 0); 247 memset(target, 0, sizeof(target)); 248 result = sldns_b64_pton(p2, (uint8_t*)target, tarsize); 249 unit_assert(result == strlen("hello>") && strcmp(target, "hello>") == 0); 250 memset(target, 0, sizeof(target)); 251 result = sldns_b64_pton(p3, (uint8_t*)target, tarsize); 252 unit_assert(result == strlen("hello?!") && strcmp(target, "hello?!") == 0); 253 memset(target, 0, sizeof(target)); 254 result = sldns_b64_pton(p4, (uint8_t*)target, tarsize); 255 /* when padding is used everything that is not a block of 4 will be 256 * ignored */ 257 unit_assert(result == strlen("hel") && strcmp(target, "hel") == 0); 258 259 memset(target, 0, sizeof(target)); 260 result = sldns_b64url_pton(u1, strlen(u1), (uint8_t*)target, tarsize); 261 unit_assert(result == strlen("hello") && strcmp(target, "hello") == 0); 262 memset(target, 0, sizeof(target)); 263 result = sldns_b64url_pton(u2, strlen(u2), (uint8_t*)target, tarsize); 264 unit_assert(result == strlen("hello>") && strcmp(target, "hello>") == 0); 265 memset(target, 0, sizeof(target)); 266 result = sldns_b64url_pton(u3, strlen(u3), (uint8_t*)target, tarsize); 267 unit_assert(result == strlen("hello+/") && strcmp(target, "hello?!") == 0); 268 /* one item in block of four is not allowed */ 269 memset(target, 0, sizeof(target)); 270 result = sldns_b64url_pton(u4, strlen(u4), (uint8_t*)target, tarsize); 271 unit_assert(result == -1); 272} 273 274void 275ldns_test(void) 276{ 277 unit_show_feature("sldns"); 278 rr_tests(); 279 b64_test(); 280} 281