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