Adding upstream version 11.74.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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92 changed files with 43156 additions and 0 deletions
226
tools/src/qsre.c
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226
tools/src/qsre.c
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/**
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* qsre.c: pcre expression match test tool
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*
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* See http://mod-qos.sourceforge.net/ for further
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* details.
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*
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* Copyright (C) 2023 Pascal Buchbinder
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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static const char revision[] = "$Id: qsre.c 2654 2022-05-13 09:12:42Z pbuchbinder $";
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/* system */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <time.h>
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/* apr */
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#include <apr.h>
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#include <apr_strings.h>
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#include <apr_time.h>
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#include <apr_general.h>
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#include <apr_lib.h>
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#include <apr_portable.h>
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#include <apr_support.h>
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#define PCRE2_CODE_UNIT_WIDTH 8
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#include <pcre2.h>
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#include "qs_util.h"
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#define QS_OVECCOUNT 100
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static void usage(const char *cmd, int man) {
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if(man) {
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//.TH [name of program] [section number] [center footer] [left footer] [center header]
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printf(".TH %s 1 \"%s\" \"mod_qos utilities %s\" \"%s man page\"\n", qs_CMD(cmd), man_date,
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man_version, cmd);
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}
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printf("\n");
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if(man) {
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printf(".SH NAME\n");
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}
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qs_man_print(man, "%s matches a regular expression against test strings.\n", cmd);
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printf("\n");
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if(man) {
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printf(".SH SYNOPSIS\n");
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}
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qs_man_print(man, "%s%s <string>|<path> <pcre>|<path>\n", man ? "" : "Usage: ", cmd);
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printf("\n");
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if(man) {
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printf(".SH DESCRIPTION\n");
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} else {
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printf("Summary\n");
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}
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qs_man_print(man, "Regular expression test tool.\n");
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qs_man_print(man, "The provided regular expression (pcre, caseless matching, \".\" matches anything\n");
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qs_man_print(man, "incl. newline) is appplied against the provided test strings to verify if the\n");
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qs_man_print(man, "pattern matches.\n");
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printf("\n");
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if(man) {
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printf(".SH OPTIONS\n");
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} else {
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printf("Options\n");
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}
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if(man) printf(".TP\n");
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qs_man_print(man, " <string>|<path>\n");
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if(man) printf("\n");
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qs_man_print(man, " The first argument either defines a single test string of a path to\n");
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qs_man_print(man, " a file containing either multiple test strings or a test pattern with\n");
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qs_man_print(man, " newline characters (text).\n");
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if(man) printf("\n.TP\n");
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qs_man_print(man, " <pcre>|<path>\n");
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if(man) printf("\n");
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qs_man_print(man, " The second argument either defines a regular expression or a path to\n");
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qs_man_print(man, " a file containing the expression.\n");
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printf("\n");
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if(man) {
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printf(".SH SEE ALSO\n");
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printf("qsdt(1), qsexec(1), qsfilter2(1), qsgeo(1), qsgrep(1), qshead(1), qslog(1), qslogger(1), qspng(1), qsrespeed(1), qsrotate(1), qssign(1), qstail(1)\n");
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printf(".SH AUTHOR\n");
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printf("Pascal Buchbinder, http://mod-qos.sourceforge.net/\n");
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} else {
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printf("See http://mod-qos.sourceforge.net/ for further details.\n");
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}
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if(man) {
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exit(0);
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} else {
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exit(1);
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}
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}
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static int rmatch(const char *line, qs_regex_t *preg) {
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qs_regmatch_t regm[QS_MAX_REG_MATCH];
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int rc_c = -1;
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do {
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int rc = qs_regexec_len(preg, line, strlen(line), QS_MAX_REG_MATCH, regm, 0);
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if(rc >= 0) {
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int ix;
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rc_c = 0;
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printf("[%.*s]", regm[0].rm_eo - regm[0].rm_so, &line[regm[0].rm_so]);
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for(ix = 1; ix < rc; ix++) {
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printf(" $%d=%.*s", ix, regm[ix].rm_eo - regm[ix].rm_so, &line[regm[ix].rm_so]);
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}
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line = &line[regm[0].rm_eo];
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} else {
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line = NULL;
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}
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} while(line && line[0]);
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return rc_c;
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}
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int main(int argc, const char *const argv[]) {
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const char *errptr = NULL;
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int erroffset;
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qs_regex_t *preg;
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int rc_c = -1;
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const char *line;
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const char *in;
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const char *pattern;
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FILE *file;
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apr_pool_t *pool;
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char *raw = "";
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int linenr = 0;
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const char *cmd = strrchr(argv[0], '/');
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apr_app_initialize(&argc, &argv, NULL);
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apr_pool_create(&pool, NULL);
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if(cmd == NULL) {
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cmd = (char *)argv[0];
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} else {
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cmd++;
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}
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argc--;
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argv++;
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if(argc != 2) {
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if(argc == 1 && strcmp(argv[0], "--man") == 0) {
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usage(cmd, 1);
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} else {
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usage(cmd, 0);
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}
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}
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in = argv[0];
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pattern = argv[1];
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file = fopen(pattern, "r");
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if(file) {
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char readline[MAX_LINE];
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if(fgets(readline, MAX_LINE-1, file) != NULL) {
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int len = strlen(readline);
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while(len > 0 && readline[len] < 32) {
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readline[len] = '\0';
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len--;
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}
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pattern = apr_pstrdup(pool, readline);
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}
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fclose(file);
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}
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printf("expression: %s\n", pattern);
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preg = apr_palloc(pool, sizeof(qs_regex_t));
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if(qs_regcomp(preg, pattern, PCRE2_DOTALL|PCRE2_CASELESS) != 0) {
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fprintf(stderr, "ERROR, rule <%s> could not compile regular expression\n", pattern);
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exit(1);
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}
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apr_pool_pre_cleanup_register(pool, preg, qs_pregfree);
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file = fopen(in, "r");
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if(file) {
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char readline[MAX_LINE];
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while(fgets(readline, MAX_LINE-1, file) != NULL) {
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int len = strlen(readline);
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linenr++;
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printf("line %.3d: ", linenr);
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raw = apr_pstrcat(pool, raw, readline, NULL);
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while(len > 0 && readline[len] < 32) {
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readline[len] = '\0';
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len--;
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}
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if(readline[0] >= 32 && strlen(readline) > 0) {
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line = readline;
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rc_c = rmatch(line, preg);
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}
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printf("\n");
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}
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fclose(file);
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printf("entire content match:\n");
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rc_c = rmatch(raw, preg);
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printf("\n");
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} else {
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line = in;
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rc_c = rmatch(line, preg);
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printf("\n");
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}
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if(rc_c < 0) {
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printf("no match\n");
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return 2;
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}
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return 0;
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}
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