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219 lines
6.6 KiB
C
219 lines
6.6 KiB
C
/*
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* testcode/unitldns.c - unit test for ldns routines.
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*
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* Copyright (c) 2014, NLnet Labs. All rights reserved.
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*
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* This software is open source.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of the NLNET LABS nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/**
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* \file
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* Calls ldns unit tests. Exits with code 1 on a failure.
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*/
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#include "config.h"
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#include "util/log.h"
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#include "testcode/unitmain.h"
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#include "ldns/sbuffer.h"
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#include "ldns/str2wire.h"
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#include "ldns/wire2str.h"
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/** verbose this unit test */
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static int vbmp = 0;
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/** print buffer to hex into string */
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static void
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buf_to_hex(uint8_t* b, size_t blen, char* s, size_t slen)
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{
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const char* h = "0123456789ABCDEF";
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size_t i;
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if(slen < blen*2+2 && vbmp) printf("hexstring buffer too small\n");
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unit_assert(slen >= blen*2+2);
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for(i=0; i<blen; i++) {
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s[i*2] = h[(b[i]&0xf0)>>4];
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s[i*2+1] = h[b[i]&0x0f];
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}
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s[blen*2] = '\n';
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s[blen*2+1] = 0;
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}
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/** Transform input.
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* @param txt_in: input text format.
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* @param wire1: output wireformat in hex (txt_in converted to wire).
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* @param txt_out: output text format (converted from wire_out).
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* @param wire2: output wireformat in hex, txt_out converted back to wireformat.
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* @param bufs: size of the text buffers.
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*/
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static void
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rr_transform(char* txt_in, char* wire1, char* txt_out, char* wire2,
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size_t bufs)
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{
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uint8_t b[65536];
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size_t len;
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int err;
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len = sizeof(b);
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err = sldns_str2wire_rr_buf(txt_in, b, &len, NULL, 3600,
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NULL, 0, NULL, 0);
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if(err != 0) {
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if(vbmp) printf("sldns_str2wire_rr_buf, pos %d: %s\n",
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LDNS_WIREPARSE_OFFSET(err),
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sldns_get_errorstr_parse(err));
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}
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unit_assert(err == 0);
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buf_to_hex(b, len, wire1, bufs);
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if(vbmp) printf("wire1: %s", wire1);
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err = sldns_wire2str_rr_buf(b, len, txt_out, bufs);
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unit_assert(err < (int)bufs && err > 0);
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if(vbmp) printf("txt: %s", txt_out);
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len = sizeof(b);
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err = sldns_str2wire_rr_buf(txt_out, b, &len, NULL, 3600,
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NULL, 0, NULL, 0);
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if(err != 0) {
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if(vbmp) printf("sldns_str2wire_rr_buf-2, pos %d: %s\n",
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LDNS_WIREPARSE_OFFSET(err),
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sldns_get_errorstr_parse(err));
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}
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unit_assert(err == 0);
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buf_to_hex(b, len, wire2, bufs);
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if(vbmp) printf("wire2: %s", wire2);
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}
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/** Check if results are correct */
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static void
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rr_checks(char* wire_chk, char* txt_chk, char* txt_out, char* wire_out,
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char* back)
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{
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#ifdef __APPLE__
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/* the wiretostr on ipv6 is weird on apple, we cannot check it.
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* skip AAAA on OSX */
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if(strstr(txt_out, "IN AAAA"))
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txt_out = txt_chk; /* skip this test, but test wirefmt */
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/* so we know that txt_out back to wire is the same */
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#endif
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if(strcmp(txt_chk, txt_out) != 0 && vbmp)
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printf("txt different\n");
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if(strcmp(wire_chk, wire_out) != 0 && vbmp)
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printf("wire1 different\n");
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if(strcmp(wire_chk, back) != 0 && vbmp)
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printf("wire2 different\n");
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unit_assert(strcmp(txt_chk, txt_out) == 0);
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unit_assert(strcmp(wire_chk, wire_out) == 0);
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unit_assert(strcmp(wire_chk, back) == 0);
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}
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/** read rrs to and from string, and wireformat
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* Skips empty lines and comments.
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* @param input: input file with text format.
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* @param check: check file with hex and then textformat
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*/
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static void
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rr_test_file(const char* input, const char* check)
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{
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size_t bufs = 131072;
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FILE* inf, *chf, *of;
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int lineno = 0, chlineno = 0;
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char* txt_in = (char*)malloc(bufs);
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char* txt_out = (char*)malloc(bufs);
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char* txt_chk = (char*)malloc(bufs);
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char* wire_out = (char*)malloc(bufs);
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char* wire_chk = (char*)malloc(bufs);
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char* back = (char*)malloc(bufs);
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if(!txt_in || !txt_out || !txt_chk || !wire_out || !wire_chk || !back)
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fatal_exit("malloc failure");
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inf = fopen(input, "r");
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if(!inf) fatal_exit("cannot open %s: %s", input, strerror(errno));
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chf = fopen(check, "r");
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if(!chf) fatal_exit("cannot open %s: %s", check, strerror(errno));
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of = NULL;
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if(0) {
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/* debug: create check file */
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of = fopen("outputfile", "w");
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if(!of) fatal_exit("cannot write output: %s", strerror(errno));
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}
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while(fgets(txt_in, (int)bufs, inf)) {
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lineno++;
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if(vbmp) printf("\n%s:%d %s", input, lineno, txt_in);
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/* skip empty lines and comments */
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if(txt_in[0] == 0 || txt_in[0] == '\n' || txt_in[0] == ';')
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continue;
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/* read check lines */
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if(!fgets(wire_chk, (int)bufs, chf))
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printf("%s too short\n", check);
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if(!fgets(txt_chk, (int)bufs, chf))
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printf("%s too short\n", check);
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chlineno += 2;
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if(vbmp) printf("%s:%d %s", check, chlineno-1, wire_chk);
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if(vbmp) printf("%s:%d %s", check, chlineno, txt_chk);
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/* generate results */
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rr_transform(txt_in, wire_out, txt_out, back, bufs);
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/* checks */
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if(of) {
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fprintf(of, "%s%s", wire_out, txt_out);
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} else {
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rr_checks(wire_chk, txt_chk, txt_out, wire_out, back);
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}
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}
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if(of) fclose(of);
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fclose(inf);
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fclose(chf);
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free(txt_in);
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free(txt_out);
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free(txt_chk);
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free(wire_out);
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free(wire_chk);
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free(back);
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}
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/** read rrs to and from string, to and from wireformat */
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static void
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rr_tests(void)
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{
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rr_test_file("testdata/test_ldnsrr.1", "testdata/test_ldnsrr.c1");
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rr_test_file("testdata/test_ldnsrr.2", "testdata/test_ldnsrr.c2");
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rr_test_file("testdata/test_ldnsrr.3", "testdata/test_ldnsrr.c3");
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rr_test_file("testdata/test_ldnsrr.4", "testdata/test_ldnsrr.c4");
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rr_test_file("testdata/test_ldnsrr.5", "testdata/test_ldnsrr.c5");
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}
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void
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ldns_test(void)
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{
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unit_show_feature("sldns");
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rr_tests();
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}
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