annotate src/readpstlog.c @ 52:034641c26ab9

code cleanup
author carl
date Thu, 31 Jan 2008 08:03:30 -0800
parents f66078abed38
children b12f4e50e2e8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #include "define.h"
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2
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3 #include <stdio.h>
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4 #include <ctype.h>
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5 #include <string.h>
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6
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7 #ifndef _WIN32
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8 # include <unistd.h>
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9 #endif
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10
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11 #ifndef __GNUC__
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12 # include "XGetopt.h"
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13 #endif
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14
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15
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16 #define BUF_SIZE 4096
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17
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18 int usage();
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19 size_t get(void * buf, int size, unsigned int count, FILE *fp);
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20 int split_args(char *args, int **targ);
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21 int is_in(int a, int *b, int c);
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22
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23 int main(int argc, char** argv) {
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24 int identity = 0;
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25 int level = 0;
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26 off_t *i = NULL;
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27 int x, ptr, stop=0, flag;
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28 char *fname, *buf, rec_type;
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29 unsigned char version;
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30 int *show_type=NULL, show_size=0;
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31 int *ex_type=NULL, ex_size=0;
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32 unsigned int funcname=0, filename=0, text=0, end=0, dtype=0, line=0, c;
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33 FILE *fp;
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34 struct pst_debug_file_rec_m mfile_rec;
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35 struct pst_debug_file_rec_l lfile_rec;
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36 char format = 'D'; // default
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37 while ((c = getopt(argc, argv, "f:t:x:")) != -1) {
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38 switch(c) {
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39 case 'f':
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40 // change the output format
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41 format = toupper(optarg[0]);
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42 break;
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43 case 't':
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44 //change the type of statements shown
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45 show_size = split_args(optarg, &show_type);
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46 // type = atoi(optarg);
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47 break;
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48 case 'x':
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49 // change the type of statements excluded
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50 ex_size = split_args(optarg, &ex_type);
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51 break;
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52 }
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53 }
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54 if (argc > optind) {
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55 fname = argv[optind++];
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56 } else {
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57 usage();
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58 exit(2);
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59 }
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60
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61 fp = fopen(fname, "rb");
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62 if (fp == NULL) {
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63 printf("Error. couldn't open debug file\n");
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64 return 2;
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65 }
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66 if (get(&version, sizeof(char), 1, fp)==0) {
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67 printf("Error. could not read version byte from front of file");
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68 return 3;
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69 }
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70
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71 if (version > DEBUG_VERSION) {
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72 printf("Version number is higher than the format I know about.");
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73 return 4;
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74 }
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75
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76 buf = (char*) xmalloc(BUF_SIZE);
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77
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78 while (!stop) {
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79 off_t temp;
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80 if (fread(&temp, sizeof(off_t), 1, fp)<=0) break;
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81 x = (int)temp;
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82 ptr = 0;
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83 if (x > 0) {
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84 if (i) free(i);
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85 i = (off_t*)xmalloc(sizeof(off_t)*(x+1));
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86 // plus 1 cause we want to read the offset of the next index
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87 if (get(i, sizeof(off_t), x+1, fp)==0) {
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88 // we have reached the end of the debug file
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89 printf("oh dear. we must now end\n");
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90 break;
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91 }
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92 while (ptr < x) {
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93 fseek(fp, i[ptr++], SEEK_SET);
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94 get(&rec_type, 1, sizeof(char), fp);
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95 if (rec_type == 'L') {
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96 get(&lfile_rec, sizeof(lfile_rec), 1, fp);
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97 funcname=lfile_rec.funcname;
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98 filename=lfile_rec.filename;
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99 text = lfile_rec.text;
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100 end = lfile_rec.end;
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101 dtype = lfile_rec.type;
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102 line = lfile_rec.line;
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103 } else if (rec_type == 'M') {
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104 get(&mfile_rec, sizeof(mfile_rec), 1, fp);
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105 funcname = mfile_rec.funcname;
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106 filename = mfile_rec.filename;
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107 text = mfile_rec.text;
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108 end = mfile_rec.end;
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109 dtype = mfile_rec.type;
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110 line = mfile_rec.line;
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111 }
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112 if (dtype == DEBUG_FUNCENT_NO) level++;
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113 if ((show_type == NULL || is_in(dtype, show_type, show_size)) &&
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114 (ex_type == NULL || !is_in(dtype, ex_type, ex_size))) {
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115 c = 0; flag = 0;
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116 while (c < end) {
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117 int ii = (level-1) * 4;
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118 if (ii < 0) ii = 0;
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119 if (ii > 64) ii = 64;
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120 char indent[ii+1];
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121 memset(indent, ' ', ii);
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122 indent[ii] = '\0';
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123 if (c + (BUF_SIZE-1) < end) {
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124 get(buf, 1, BUF_SIZE-1, fp);
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125 buf[BUF_SIZE-1] = '\0';
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126 c += BUF_SIZE-1;
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127 } else {
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128 get(buf, 1, end-c, fp);
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129 buf[end-c] = '\0';
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130 c = end;
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131 }
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132 if (flag == 0) {
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133 if (format == 'I') { // indented text format
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134 char *b = buf+text;
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135 identity++;
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136 //printf("%s %d %s/%s[%d]: ", indent, identity, &buf[filename], &buf[funcname], line);
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137 printf("%s %s/%s[%d]: ", indent, &buf[filename], &buf[funcname], line);
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138 while (b) {
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139 char *p = strchr(b, '\n');
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140 if (p) {
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141 *p = '\0';
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142 printf("%s\n%s ", b, indent);
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143 b = p + 1;
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144 }
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145 else {
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146 printf("%s", b);
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147 b = NULL;
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148 }
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149 }
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150 }
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151 else if (format == 'T') { // text format
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152 printf("%s/%s[%d]: %s", &buf[filename], &buf[funcname], line, &buf[text]);
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153 } else {
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154 printf("Type: %d\nFile[line]: %s[%d]\nFunction:%s\nText:%s", dtype,
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155 &buf[filename], line, &buf[funcname], &buf[text]);
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156 }
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157 flag = 1;
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158 } else {
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159 if (format == 'I') {
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160 char *b = buf;
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161 while (b) {
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162 char *p = strchr(b, '\n');
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163 if (p) {
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164 *p = '\0';
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165 printf("%s\n%s ", b, indent);
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166 b = p + 1;
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167 }
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168 else {
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169 printf("%s", b);
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170 b = NULL;
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171 }
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172 }
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173 }
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174 else printf("%s", buf);
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175 }
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176 }
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177 printf("\n");
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178 }
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179 if (dtype == DEBUG_FUNCRET_NO) level--;
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180 }
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181 if (fseek(fp, i[ptr], SEEK_SET)==-1) {
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182 printf("finished\n");
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183 break;
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184 }
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185 } else {
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186 printf("...no more items\n");
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187 break;
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188 }
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189 }
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190 free(buf);
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191 fclose(fp);
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192 if (format == 'I') printf("final indent level = %i\n", level);
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193 return 0;
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194 }
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195
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196 size_t get(void *buf, int size, unsigned int count, FILE *fp) {
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197 size_t z;
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198 if ((z=fread(buf, size, count, fp)) < count) {
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199 printf("Read Failed! (size=%d, count=%d,z=%ld)\n", size, count, (long)z);
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200 exit(1);
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201 }
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202 return z;
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203 }
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204
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205 int usage() {
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206 printf("readlog -t[show_type] -x[exclude_type] -f[format] filename\n");
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207 printf("\tformat:\n\t\tt: text log format\n");
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208 printf("\t\ti: indented text log format\n");
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209 printf("\tshow_type:\n\t\tcomma separated list of types to show "
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210 "[ie, 2,4,1,6]\n");
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211 printf("\texclude_type:\n\t\tcomma separated list of types to exclude "
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212 "[ie, 1,5,3,7]\n");
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213 return 0;
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214 }
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215
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216
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217 int split_args(char *args, int **targ) {
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218 int count = 1, *i, x, z;
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219 char *tmp = args, *y;
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220 if (*targ != NULL) {
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221 free(*targ);
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222 }
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223 // find the number of tokens in the string. Starting
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224 // from 1 cause there will always be one
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225 while ((tmp = strchr(tmp, ',')) != NULL) {
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226 tmp++; count++;
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227 }
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228 *targ = (int*)xmalloc(count * sizeof(int));
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229 i = *targ; // for convienience
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230 tmp = args;
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231 z = 0;
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232 for (x = 0; x < count; x++) {
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233 y = strtok(tmp, ",");
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234 tmp = NULL; // must be done after first call
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235 if (y != NULL) {
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236 i[x] = atoi(y);
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237 z++;
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238 }
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239 }
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240 return z;
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241 }
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242
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243
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244 // checks to see if the first arg is in the array of the second arg,
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245 // the size of which is specified with the third arg. If the second
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246 // arg is NULL, then it is obvious that it is not there.
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247 int is_in(int a, int *b, int c){
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248 int d = 0;
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249 if (b == NULL || c == 0) { // no array or no items in array
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250 return 0;
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251 }
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252 while (d < c) {
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253 if (a == b[d]) return 1;
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254 d++;
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255 }
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256 return 0;
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257 }