Mercurial > repos > blastem
annotate util.c @ 857:ae2bd9c22855
Updated .hgignore for some android stuff
author | Michael Pavone <pavone@retrodev.com> |
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date | Wed, 04 Nov 2015 22:13:37 -0800 |
parents | 3eced113081c |
children | 69a6ec208111 |
rev | line source |
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1 #include <string.h> |
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2 #include <stdlib.h> |
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3 #include <stdio.h> |
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4 #include <ctype.h> |
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5 #include <stdint.h> |
805 | 6 #include <stdarg.h> |
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7 |
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8 #include <sys/types.h> |
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9 #include <sys/stat.h> |
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10 #include <unistd.h> |
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11 |
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12 #include "blastem.h" //for headless global |
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13 #include "render.h" //for render_errorbox |
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14 |
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15 char * alloc_concat(char * first, char * second) |
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16 { |
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17 int flen = strlen(first); |
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18 int slen = strlen(second); |
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19 char * ret = malloc(flen + slen + 1); |
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20 memcpy(ret, first, flen); |
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21 memcpy(ret+flen, second, slen+1); |
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22 return ret; |
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23 } |
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24 |
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25 char * alloc_concat_m(int num_parts, char ** parts) |
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26 { |
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27 int total = 0; |
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28 for (int i = 0; i < num_parts; i++) { |
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29 total += strlen(parts[i]); |
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30 } |
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31 char * ret = malloc(total + 1); |
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32 *ret = 0; |
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33 for (int i = 0; i < num_parts; i++) { |
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34 strcat(ret, parts[i]); |
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35 } |
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36 return ret; |
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37 } |
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38 |
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39 long file_size(FILE * f) |
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40 { |
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41 fseek(f, 0, SEEK_END); |
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42 long fsize = ftell(f); |
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43 fseek(f, 0, SEEK_SET); |
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44 return fsize; |
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45 } |
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46 |
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47 char * strip_ws(char * text) |
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48 { |
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49 while (*text && (!isprint(*text) || isblank(*text))) |
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50 { |
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51 text++; |
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52 } |
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53 char * ret = text; |
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54 text = ret + strlen(ret) - 1; |
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55 while (text > ret && (!isprint(*text) || isblank(*text))) |
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56 { |
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57 *text = 0; |
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58 text--; |
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59 } |
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60 return ret; |
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61 } |
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62 |
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63 char * split_keyval(char * text) |
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64 { |
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65 while (*text && !isblank(*text)) |
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66 { |
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67 text++; |
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68 } |
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69 if (!*text) { |
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70 return text; |
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71 } |
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72 *text = 0; |
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73 return text+1; |
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74 } |
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75 |
768
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76 uint32_t nearest_pow2(uint32_t val) |
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77 { |
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78 uint32_t ret = 1; |
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79 while (ret < val) |
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80 { |
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81 ret = ret << 1; |
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82 } |
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83 return ret; |
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84 } |
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85 |
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86 static char * exe_str; |
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87 |
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88 void set_exe_str(char * str) |
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89 { |
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90 exe_str = str; |
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91 } |
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92 |
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93 void fatal_error(char *format, ...) |
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94 { |
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95 va_list args; |
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96 va_start(args, format); |
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97 if (!headless) { |
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98 //take a guess at the final size |
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99 size_t size = strlen(format) * 2; |
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100 char *buf = malloc(size); |
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101 size_t actual = vsnprintf(buf, size, format, args); |
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102 if (actual >= size) { |
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103 actual++; |
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104 free(buf); |
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105 buf = malloc(actual); |
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106 va_end(args); |
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107 va_start(args, format); |
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108 vsnprintf(buf, actual, format, args); |
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109 } |
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110 fputs(buf, stderr); |
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111 render_errorbox("Fatal Error", buf); |
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112 free(buf); |
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113 } else { |
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114 vfprintf(stderr, format, args); |
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115 } |
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116 va_end(args); |
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117 exit(1); |
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118 } |
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119 |
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120 void warning(char *format, ...) |
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121 { |
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122 va_list args; |
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123 va_start(args, format); |
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124 #ifndef _WIN32 |
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125 if (headless || (isatty(STDERR_FILENO) && isatty(STDIN_FILENO))) { |
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126 vfprintf(stderr, format, args); |
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127 } else { |
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128 #endif |
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129 size_t size = strlen(format) * 2; |
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130 char *buf = malloc(size); |
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131 size_t actual = vsnprintf(buf, size, format, args); |
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132 if (actual >= size) { |
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133 actual++; |
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134 free(buf); |
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135 buf = malloc(actual); |
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136 va_end(args); |
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137 va_start(args, format); |
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138 vsnprintf(buf, actual, format, args); |
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139 } |
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140 fputs(buf, stderr); |
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141 render_infobox("BlastEm Info", buf); |
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142 free(buf); |
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143 #ifndef _WIN32 |
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144 } |
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145 #endif |
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146 va_end(args); |
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147 } |
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148 |
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149 void info_message(char *format, ...) |
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150 { |
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151 va_list args; |
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152 va_start(args, format); |
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153 #ifndef _WIN32 |
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154 if (headless || (isatty(STDOUT_FILENO) && isatty(STDIN_FILENO))) { |
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155 vprintf(format, args); |
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156 } else { |
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157 #endif |
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158 size_t size = strlen(format) * 2; |
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159 char *buf = malloc(size); |
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160 size_t actual = vsnprintf(buf, size, format, args); |
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161 if (actual >= size) { |
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162 actual++; |
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163 free(buf); |
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164 buf = malloc(actual); |
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165 va_end(args); |
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166 va_start(args, format); |
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167 vsnprintf(buf, actual, format, args); |
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168 } |
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169 fputs(buf, stdout); |
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170 render_infobox("BlastEm Info", buf); |
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171 free(buf); |
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172 #ifndef _WIN32 |
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173 } |
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174 #endif |
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175 va_end(args); |
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176 } |
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177 |
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178 #ifdef _WIN32 |
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179 #include <windows.h> |
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180 #include <shlobj.h> |
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181 |
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182 char * get_home_dir() |
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183 { |
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184 static char path[MAX_PATH]; |
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185 SHGetFolderPathA(NULL, CSIDL_PROFILE, NULL, 0, path); |
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186 return path; |
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187 } |
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188 |
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189 char * get_exe_dir() |
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190 { |
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191 static char path[MAX_PATH]; |
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192 HMODULE module = GetModuleHandleA(NULL); |
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193 GetModuleFileNameA(module, path, MAX_PATH); |
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194 |
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195 int pathsize = strlen(path); |
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196 for(char * cur = path + pathsize - 1; cur != path; cur--) |
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197 { |
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198 if (*cur == '\\') { |
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199 *cur = 0; |
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200 break; |
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201 } |
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202 } |
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203 return path; |
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204 } |
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205 |
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206 #else |
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207 |
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208 char * get_home_dir() |
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209 { |
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210 return getenv("HOME"); |
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211 } |
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212 |
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213 char * readlink_alloc(char * path) |
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214 { |
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215 char * linktext = NULL; |
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216 ssize_t linksize = 512; |
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217 ssize_t cursize = 0; |
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218 do { |
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219 if (linksize > cursize) { |
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220 cursize = linksize; |
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221 if (linktext) { |
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222 free(linktext); |
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223 } |
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224 } |
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225 linktext = malloc(cursize); |
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226 linksize = readlink(path, linktext, cursize-1); |
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227 if (linksize == -1) { |
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228 perror("readlink"); |
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229 free(linktext); |
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230 return NULL; |
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231 } |
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232 } while ((linksize+1) > cursize); |
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233 linktext[linksize] = 0; |
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234 return linktext; |
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235 } |
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236 |
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237 char * get_exe_dir() |
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238 { |
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239 static char * exe_dir; |
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240 if (!exe_dir) { |
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241 char * cur; |
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242 #ifdef HAS_PROC |
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243 char * linktext = readlink_alloc("/proc/self/exe"); |
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244 if (!linktext) { |
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245 goto fallback; |
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246 } |
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247 int linksize = strlen(linktext); |
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248 for(cur = linktext + linksize - 1; cur != linktext; cur--) |
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249 { |
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250 if (*cur == '/') { |
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251 *cur = 0; |
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252 break; |
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253 } |
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254 } |
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255 if (cur == linktext) { |
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256 free(linktext); |
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257 fallback: |
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258 #endif |
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259 if (!exe_str) { |
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260 fputs("/proc/self/exe is not available and set_exe_str was not called!", stderr); |
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261 } |
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262 int pathsize = strlen(exe_str); |
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263 for(cur = exe_str + pathsize - 1; cur != exe_str; cur--) |
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264 { |
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265 if (*cur == '/') { |
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266 exe_dir = malloc(cur-exe_str+1); |
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267 memcpy(exe_dir, exe_str, cur-exe_str); |
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268 exe_dir[cur-exe_str] = 0; |
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269 break; |
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270 } |
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271 } |
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272 #ifdef HAS_PROC |
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273 } else { |
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274 exe_dir = linktext; |
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275 } |
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276 #endif |
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277 } |
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278 return exe_dir; |
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279 } |
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280 |
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281 #endif |