src/scanner.c

Fri, 28 Dec 2012 15:44:28 +0100

author
Mike Becker <universe@uap-core.de>
date
Fri, 28 Dec 2012 15:44:28 +0100
changeset 34
fa9bda32de17
parent 30
scanner.c@d642fdb6745e
child 36
a7ff583e153f
permissions
-rw-r--r--

moved src files to src subdirectory and added licence text

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1 /*
34
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 * Copyright 2011 Mike Becker. All rights reserved.
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4 *
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5 * Redistribution and use in source and binary forms, with or without
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6 * modification, are permitted provided that the following conditions are met:
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7 *
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8 * 1. Redistributions of source code must retain the above copyright
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9 * notice, this list of conditions and the following disclaimer.
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10 *
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11 * 2. Redistributions in binary form must reproduce the above copyright
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12 * notice, this list of conditions and the following disclaimer in the
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13 * documentation and/or other materials provided with the distribution.
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14 *
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15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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25 *
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26 * scanner.c
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27 *
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28 * Created on: 23.05.2011
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29 * Author: Mike
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30 */
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31
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32
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33 #include "scanner.h"
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34 #include "suffix_fnc.h"
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35 #include "bfile_heuristics.h"
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36 #include "regex_parser.h"
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37 #include <sys/stat.h>
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38
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39 int scanDirectory(scanner_t scanner, settings_t* settings) {
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40
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41 DIR *dirf;
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42 struct dirent *entry;
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43 int lines, a;
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44 int lineSum = 0;
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45 bool bfile;
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46 struct stat statbuf;
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47
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48 if ((dirf = opendir(scanner.dir)) == NULL) {
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49 printf("%s", scanner.dir);
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50 perror(" Directory access failed");
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51 return 0;
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52 }
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53
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54 while ((entry = readdir(dirf)) != NULL) {
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55 if (strcmp(entry->d_name, ".") != 0 && strcmp(entry->d_name, "..") != 0) {
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56 /* Construct tree view and absolute pathname strings */
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57 char entryname[strlen(entry->d_name)+scanner.spaces];
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58 for (int t = 0 ; t < scanner.spaces ; t++) {
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59 entryname[t]=' ';
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60 }
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61 entryname[scanner.spaces] = 0;
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62 strcat(entryname, entry->d_name);
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63
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64 char filename[(1+strlen(scanner.dir)+strlen(entry->d_name))];
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65 strcpy(filename, scanner.dir);
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66 strncat(filename, &settings->fileSeparator, 1);
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67 strcat(filename, entry->d_name);
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68
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69 /* Check for subdirectory */
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70 if (stat(filename, &statbuf) == 0) {
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71 if (!(statbuf.st_mode & S_IFREG)) {
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72 printf("%-60s\n", entryname);
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73 if (settings->recursive && (statbuf.st_mode & S_IFDIR)) {
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74 lineSum += scanDirectory(
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75 (scanner_t) {filename, scanner.spaces+1}, settings);
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76 }
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77 continue;
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78 }
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79 } else {
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80 perror(" Error in stat call");
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81 continue;
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82 }
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83
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84 if ((settings->includeSuffixes->count == 0
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85 || testSuffix(filename, settings->includeSuffixes))
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86 && !testSuffix(filename, settings->excludeSuffixes)) {
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87 /* Count lines */
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88 lines = 0;
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89 bfile = false;
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90 bfile_reset(settings->bfileHeuristics);
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91 char line_buffer[REGEX_MAX_LINELENGTH];
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92 int line_buffer_offset = 0;
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93
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94 FILE *file = fopen(filename, "r");
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95 if (file == NULL) {
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96 printf("%s", entryname);
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97 perror(" File acces failed");
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98 continue;
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99 }
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100
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101 do {
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102 a = fgetc(file);
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103
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104 bfile = bfile_check(settings->bfileHeuristics, a);
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105
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106 if (a == 10 || a == EOF) {
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107 line_buffer[line_buffer_offset] = 0;
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108 if (regex_parser_do(settings->regex, line_buffer) == 0) {
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109 /* Only subtract lines when matching has finished */
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110 if (!regex_parser_matching(settings->regex)) {
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111 lines -= settings->regex->matched_lines;
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112 }
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113 }
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114
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115 line_buffer_offset = 0;
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116 lines++;
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117 } else {
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118 if (line_buffer_offset < REGEX_MAX_LINELENGTH) {
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119 line_buffer[line_buffer_offset] = a;
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120 line_buffer_offset++;
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121 } else {
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122 line_buffer[line_buffer_offset-1] = 0;
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123 settings->confusing_lnlen = true;
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124 }
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125 }
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126 } while (!bfile && a != EOF);
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127 fclose(file);
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128
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129 /* Print and sum line count */
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130 if (bfile) {
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131 if (!settings->matchesOnly) {
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132 printf("%-60s%19s\n", entryname, "binary");
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133 }
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134 } else {
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135 lineSum += lines;
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136 printf("%-60s%13d lines\n", entryname, lines);
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137 }
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138 } else {
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139 if (!settings->matchesOnly) {
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140 /* Print hint */
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141 printf("%-60s%19s\n", entryname, "no match");
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142 }
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143 }
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144 }
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145 }
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778388400f7b encapsulated scanner arguments + enabled optimizer + empty file is no bfile
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146
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147 closedir(dirf);
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148
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149 return lineSum;
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150 }

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