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1 /* |
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2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 #include <Windows.h> |
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27 #include <io.h> |
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28 #include <stdio.h> |
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29 #include <string.h> |
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30 #include <malloc.h> |
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31 |
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32 /* |
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33 * Test if pos points to /cygdrive/_/ where _ can |
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34 * be any character. |
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35 */ |
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36 int is_cygdrive_here(int pos, char *in, int len) |
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37 { |
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38 // Length of /cygdrive/c/ is 12 |
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39 if (pos+12 > len) return 0; |
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40 if (in[pos+11]=='/' && |
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41 in[pos+9]=='/' && |
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42 in[pos+8]=='e' && |
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43 in[pos+7]=='v' && |
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44 in[pos+6]=='i' && |
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45 in[pos+5]=='r' && |
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46 in[pos+4]=='d' && |
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47 in[pos+3]=='g' && |
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48 in[pos+2]=='y' && |
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49 in[pos+1]=='c' && |
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50 in[pos+0]=='/') { |
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51 return 1; |
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52 } |
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53 return 0; |
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54 } |
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55 |
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56 /* |
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57 * Replace /cygdrive/_/ with _:/ |
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58 * Works in place since drive letter is always |
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59 * shorter than /cygdrive/ |
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60 */ |
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61 char *replace_cygdrive_cygwin(char *in) |
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62 { |
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63 int len = strlen(in); |
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64 char *out = malloc(len+1); |
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65 int i,j; |
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66 |
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67 if (len < 12) { |
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68 strcpy(out, in); |
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69 return out; |
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70 } |
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71 for (i = 0, j = 0; i<len;) { |
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72 if (is_cygdrive_here(i, in, len)) { |
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73 out[j++] = in[i+10]; |
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74 out[j++] = ':'; |
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75 i+=11; |
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76 } else { |
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77 out[j] = in[i]; |
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78 i++; |
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79 j++; |
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80 } |
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81 } |
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82 out[j] = 0; |
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83 return out; |
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84 } |
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85 |
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86 void append(char **b, size_t *bl, size_t *u, char *add, size_t addlen) |
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87 { |
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88 while ( (addlen+*u+1) > *bl) { |
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89 *bl *= 2; |
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90 *b = realloc(*b, *bl); |
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91 } |
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92 memcpy(*b+*u, add, addlen); |
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93 *u += addlen; |
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94 } |
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95 |
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96 /* |
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97 * Creates a new string from in where the first occurance of sub is |
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98 * replaced by rep. |
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99 */ |
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100 char *replace_substring(char *in, char *sub, char *rep) |
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101 { |
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102 int in_len = strlen(in); |
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103 int sub_len = strlen(sub); |
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104 int rep_len = strlen(rep); |
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105 char *out = malloc(in_len - sub_len + rep_len + 1); |
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106 char *p; |
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107 |
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108 if (!(p = strstr(in, sub))) { |
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109 // If sub isn't a substring of in, just return in. |
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110 return in; |
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111 } |
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112 |
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113 // Copy characters from beginning of in to start of sub. |
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114 strncpy(out, in, p - in); |
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115 out[p - in] = '\0'; |
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116 |
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117 sprintf(out + (p - in), "%s%s", rep, p + sub_len); |
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118 |
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119 return out; |
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120 } |
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121 |
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122 char* msys_path_list; // @-separated list of paths prefix to look for |
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123 char* msys_path_list_end; // Points to last \0 in msys_path_list. |
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124 |
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125 void setup_msys_path_list(char* argument) |
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126 { |
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127 char* p; |
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128 char* drive_letter_pos; |
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129 |
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130 msys_path_list = strdup(&argument[2]); |
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131 msys_path_list_end = &msys_path_list[strlen(msys_path_list)]; |
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132 |
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133 // Convert all at-sign (@) in path list to \0. |
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134 // @ was chosen as separator to minimize risk of other tools messing around with it |
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135 p = msys_path_list; |
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136 do { |
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137 if (p[1] == ':') { |
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138 // msys has mangled our path list, restore it from c:/... to /c/... |
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139 drive_letter_pos = p+1; |
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140 *drive_letter_pos = *p; |
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141 *p = '/'; |
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142 } |
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143 |
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144 // Look for an @ in the list |
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145 p = strchr(p, '@'); |
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146 if (p != NULL) { |
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147 *p = '\0'; |
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148 p++; |
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149 } |
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150 } while (p != NULL); |
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151 } |
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152 |
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153 char *replace_cygdrive_msys(char *in) |
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154 { |
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155 char* str; |
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156 char* prefix; |
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157 char* p; |
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158 |
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159 str = strdup(in); |
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160 |
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161 // For each prefix in the path list, search for it and replace /c/... with c:/... |
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162 for (prefix = msys_path_list; prefix < msys_path_list_end && prefix != NULL; prefix += strlen(prefix)+1) { |
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163 p=str; |
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164 while ((p = strstr(p, prefix))) { |
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165 char* drive_letter = p+1; |
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166 *p = *drive_letter; |
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167 *drive_letter = ':'; |
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168 p++; |
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169 } |
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170 } |
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171 |
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172 return str; |
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173 } |
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174 |
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175 char*(*replace_cygdrive)(char *in) = NULL; |
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176 |
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177 char *files_to_delete[1024]; |
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178 int num_files_to_delete = 0; |
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179 |
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180 char *fix_at_file(char *in) |
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181 { |
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182 char *tmpdir; |
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183 char name[2048]; |
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184 char *atname; |
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185 char *buffer; |
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186 size_t buflen=65536; |
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187 size_t used=0; |
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188 size_t len; |
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189 int rc; |
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190 FILE *atout; |
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191 FILE *atin; |
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192 char block[2048]; |
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193 size_t blocklen; |
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194 char *fixed; |
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195 |
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196 atin = fopen(in+1, "r"); |
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197 if (atin == NULL) { |
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198 fprintf(stderr, "Could not read at file %s\n", in+1); |
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199 exit(-1); |
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200 } |
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201 |
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202 tmpdir = getenv("TMP"); |
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203 if (tmpdir == NULL) { |
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204 tmpdir = "c:/cygwin/tmp"; |
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205 } |
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206 _snprintf(name, sizeof(name), "%s\\atfile_XXXXXX", tmpdir); |
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207 |
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208 rc = _mktemp_s(name, strlen(name)+1); |
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209 if (rc) { |
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210 fprintf(stderr, "Could not create temporary file name for at file!\n"); |
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211 exit(-1); |
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212 } |
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213 |
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214 atout = fopen(name, "w"); |
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215 if (atout == NULL) { |
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216 fprintf(stderr, "Could not open temporary file for writing! %s\n", name); |
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217 exit(-1); |
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218 } |
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219 |
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220 buffer = malloc(buflen); |
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221 while((blocklen = fread(block,1,sizeof(block),atin)) > 0) { |
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222 append(&buffer, &buflen, &used, block, blocklen); |
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223 } |
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224 buffer[used] = 0; |
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225 if (getenv("DEBUG_FIXPATH") != NULL) { |
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226 fprintf(stderr, "fixpath input from @-file %s: %s\n", &in[1], buffer); |
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227 } |
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228 fixed = replace_cygdrive(buffer); |
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229 if (getenv("DEBUG_FIXPATH") != NULL) { |
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230 fprintf(stderr, "fixpath converted to @-file %s is: %s\n", name, fixed); |
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231 } |
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232 fwrite(fixed, strlen(fixed), 1, atout); |
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233 fclose(atin); |
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234 fclose(atout); |
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235 free(fixed); |
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236 free(buffer); |
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237 files_to_delete[num_files_to_delete] = malloc(strlen(name)+1); |
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238 strcpy(files_to_delete[num_files_to_delete], name); |
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239 num_files_to_delete++; |
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240 atname = malloc(strlen(name)+2); |
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241 atname[0] = '@'; |
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242 strcpy(atname+1, name); |
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243 return atname; |
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244 } |
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245 |
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246 int main(int argc, char **argv) |
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247 { |
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248 STARTUPINFO si; |
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249 PROCESS_INFORMATION pi; |
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250 unsigned short rc; |
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251 |
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252 char *new_at_file; |
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253 char *old_at_file; |
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254 char *line; |
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255 int i; |
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256 DWORD exitCode; |
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257 |
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258 if (argc<3 || argv[1][0] != '-' || (argv[1][1] != 'c' && argv[1][1] != 'm')) { |
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259 fprintf(stderr, "Usage: fixpath -c|m<path@path@...> /cygdrive/c/WINDOWS/notepad.exe /cygdrive/c/x/test.txt"); |
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260 exit(0); |
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261 } |
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262 |
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263 if (getenv("DEBUG_FIXPATH") != NULL) { |
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264 fprintf(stderr, "fixpath input line >%s<\n", strstr(GetCommandLine(), argv[1])); |
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265 } |
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266 |
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267 if (argv[1][1] == 'c' && argv[1][2] == '\0') { |
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268 if (getenv("DEBUG_FIXPATH") != NULL) { |
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269 fprintf(stderr, "using cygwin mode\n"); |
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270 } |
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271 replace_cygdrive = replace_cygdrive_cygwin; |
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272 } else if (argv[1][1] == 'm') { |
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273 if (getenv("DEBUG_FIXPATH") != NULL) { |
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274 fprintf(stderr, "using msys mode, with path list: %s\n", &argv[1][2]); |
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275 } |
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276 setup_msys_path_list(argv[1]); |
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277 replace_cygdrive = replace_cygdrive_msys; |
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278 } else { |
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279 fprintf(stderr, "Unknown mode: %s\n", argv[1]); |
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280 exit(-1); |
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281 } |
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282 line = replace_cygdrive(strstr(GetCommandLine(), argv[2])); |
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283 |
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284 for (i=1; i<argc; ++i) { |
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285 if (argv[i][0] == '@') { |
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286 // Found at-file! Fix it! |
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287 old_at_file = replace_cygdrive(argv[i]); |
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288 new_at_file = fix_at_file(old_at_file); |
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289 line = replace_substring(line, old_at_file, new_at_file); |
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290 } |
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291 } |
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292 |
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293 if (getenv("DEBUG_FIXPATH") != NULL) { |
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294 fprintf(stderr, "fixpath converted line >%s<\n", line); |
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295 } |
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296 |
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297 ZeroMemory(&si,sizeof(si)); |
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298 si.cb=sizeof(si); |
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299 ZeroMemory(&pi,sizeof(pi)); |
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300 |
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301 rc = CreateProcess(NULL, |
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302 line, |
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303 0, |
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304 0, |
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305 TRUE, |
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306 0, |
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307 0, |
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308 0, |
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309 &si, |
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310 &pi); |
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311 if(!rc) |
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312 { |
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313 //Could not start process; |
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314 fprintf(stderr, "Could not start process!\n"); |
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315 exit(-1); |
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316 } |
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317 |
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318 WaitForSingleObject(pi.hProcess,INFINITE); |
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319 GetExitCodeProcess(pi.hProcess,&exitCode); |
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320 |
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321 if (getenv("DEBUG_FIXPATH") != NULL) { |
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322 for (i=0; i<num_files_to_delete; ++i) { |
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323 fprintf(stderr, "Not deleting temporary fixpath file %s\n", |
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324 files_to_delete[i]); |
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325 } |
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326 } |
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327 else { |
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328 for (i=0; i<num_files_to_delete; ++i) { |
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329 remove(files_to_delete[i]); |
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330 } |
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331 } |
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332 |
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333 exit(exitCode); |
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334 } |