[54b24c] | 1 | #include "lib.h" |
---|
| 2 | |
---|
| 3 | #include <sys/stat.h> |
---|
| 4 | #include <limits.h> |
---|
| 5 | #ifdef HAVE_DIRENT_H |
---|
| 6 | #include <dirent.h> |
---|
| 7 | #endif |
---|
| 8 | |
---|
| 9 | Str *ReadFile(FILE *fp) { |
---|
| 10 | char buffer[65536]; |
---|
| 11 | if (fp == NULL) |
---|
| 12 | return NULL; |
---|
| 13 | Str *result = new Str(1024); |
---|
| 14 | for (;;) { |
---|
| 15 | size_t nbytes = fread(buffer, 1, sizeof(buffer), fp); |
---|
| 16 | if (nbytes == 0) |
---|
| 17 | break; |
---|
| 18 | result->add(buffer, nbytes); |
---|
| 19 | } |
---|
| 20 | return result; |
---|
| 21 | } |
---|
| 22 | |
---|
| 23 | Str *ReadFile(const char *filename) { |
---|
| 24 | FILE *fp = fopen(filename, "r"); |
---|
| 25 | Str *result = ReadFile(fp); |
---|
| 26 | fclose(fp); |
---|
| 27 | return result; |
---|
| 28 | } |
---|
| 29 | |
---|
| 30 | Str *ReadFile(Str *filename) { |
---|
| 31 | return ReadFile(filename->c_str()); |
---|
| 32 | } |
---|
| 33 | |
---|
| 34 | int WriteFile(FILE *fp, Str *data) { |
---|
| 35 | char *p = data->c_str(); |
---|
| 36 | Int len = data->len(); |
---|
| 37 | while (len != 0) { |
---|
| 38 | Int written = fwrite(p, 1, len, fp); |
---|
| 39 | if (written == 0) |
---|
| 40 | return 0; |
---|
| 41 | len -= written; |
---|
| 42 | p += written; |
---|
| 43 | } |
---|
| 44 | return 1; |
---|
| 45 | } |
---|
| 46 | |
---|
| 47 | int WriteFile(const char *filename, Str *data) { |
---|
| 48 | FILE *fp = fopen(filename, "w"); |
---|
| 49 | if (!fp) |
---|
| 50 | return 0; |
---|
| 51 | int success = WriteFile(fp, data); |
---|
| 52 | fclose(fp); |
---|
| 53 | return success; |
---|
| 54 | } |
---|
| 55 | |
---|
| 56 | int WriteFile(Str *filename, Str *data) { |
---|
| 57 | return WriteFile(filename->c_str(), data); |
---|
| 58 | } |
---|
| 59 | |
---|
| 60 | StrArr *ReadLines(const char *filename) { |
---|
| 61 | Str *contents = ReadFile(filename); |
---|
| 62 | return contents->splitLines(); |
---|
| 63 | } |
---|
| 64 | |
---|
| 65 | StrArr *ReadLines(Str *filename) { |
---|
| 66 | return ReadLines(filename->c_str()); |
---|
| 67 | } |
---|
| 68 | |
---|
| 69 | static char safe_chars[256]; |
---|
| 70 | |
---|
| 71 | void InitSafeChars() { |
---|
| 72 | for (int i = 'a'; i <= 'z'; i++) |
---|
| 73 | safe_chars[i] = 1; |
---|
| 74 | for (int i = 'A'; i <= 'Z'; i++) |
---|
| 75 | safe_chars[i] = 1; |
---|
| 76 | for (int i = '0'; i <= '9'; i++) |
---|
| 77 | safe_chars[i] = 1; |
---|
| 78 | const char *p = ",._+:@%/-"; |
---|
| 79 | while (*p) |
---|
| 80 | safe_chars[(unsigned char) *p++] = 1; |
---|
| 81 | } |
---|
| 82 | |
---|
| 83 | INIT(_AdLibOS, InitSafeChars();); |
---|
| 84 | |
---|
| 85 | Str *ShellEscape(Str *arg) { |
---|
| 86 | int safe = 1; |
---|
| 87 | for (Int i = 0; i < arg->len(); i++) { |
---|
| 88 | if (!safe_chars[arg->byte(i)]) { |
---|
| 89 | safe = 0; |
---|
| 90 | break; |
---|
| 91 | } |
---|
| 92 | } |
---|
| 93 | if (safe) |
---|
| 94 | return arg; |
---|
| 95 | Str *result = new Str(arg->len()); |
---|
| 96 | result->add('\''); |
---|
| 97 | for (Str::Each it(arg); it; ++it) { |
---|
| 98 | if (*it == '\'') |
---|
| 99 | result->add("'\\''"); |
---|
| 100 | else |
---|
| 101 | result->add(*it); |
---|
| 102 | } |
---|
| 103 | result->add('\''); |
---|
| 104 | return result; |
---|
| 105 | } |
---|
| 106 | |
---|
| 107 | Str *BuildCommand(Str *prog, StrArr *args) { |
---|
| 108 | Str *command = new Str(1024); |
---|
| 109 | command->add(ShellEscape(prog)); |
---|
| 110 | for (Int i = 0; i < args->len(); i++) { |
---|
| 111 | command->add(' ')->add(ShellEscape(args->at(i))); |
---|
| 112 | } |
---|
| 113 | return command; |
---|
| 114 | } |
---|
| 115 | |
---|
| 116 | Str *ReadProcess(Str *prog, StrArr *args) { |
---|
| 117 | Str *command = BuildCommand(prog, args); |
---|
| 118 | FILE *pipe = popen(command->c_str(), "r"); |
---|
| 119 | if (!pipe) |
---|
| 120 | return NULL; |
---|
| 121 | Str *result = ReadFile(pipe); |
---|
| 122 | if (pclose(pipe)) |
---|
| 123 | return NULL; |
---|
| 124 | return result; |
---|
| 125 | } |
---|
| 126 | |
---|
| 127 | StrArr *ReadProcessLines(Str *prog, StrArr *args) { |
---|
| 128 | Str *output = ReadProcess(prog, args); |
---|
| 129 | return output->splitLines(); |
---|
| 130 | } |
---|
| 131 | |
---|
| 132 | int WriteProcess(Str *prog, StrArr *args, Str *data) { |
---|
| 133 | Str *command = BuildCommand(prog, args); |
---|
| 134 | FILE *pipe = popen(command->c_str(), "w"); |
---|
| 135 | if (!pipe) |
---|
| 136 | return 0; |
---|
| 137 | int success = WriteFile(pipe, data); |
---|
| 138 | if (pclose(pipe)) |
---|
| 139 | return 0; |
---|
| 140 | return success; |
---|
| 141 | } |
---|
| 142 | |
---|
| 143 | int System(Str *prog, StrArr *args) { |
---|
| 144 | Str *command = BuildCommand(prog, args); |
---|
| 145 | int result = system(command->c_str()); |
---|
| 146 | if (result >= 256) |
---|
| 147 | result >>= 8; |
---|
| 148 | return result; |
---|
| 149 | } |
---|
| 150 | |
---|
| 151 | void Print(Str *str) { |
---|
| 152 | printf("%s", str->c_str()); |
---|
| 153 | } |
---|
| 154 | |
---|
| 155 | void PrintLn(Str *str) { |
---|
| 156 | printf("%s\n", str->c_str()); |
---|
| 157 | } |
---|
| 158 | |
---|
| 159 | void PrintErr(Str *str) { |
---|
| 160 | fprintf(stderr, "%s", str->c_str()); |
---|
| 161 | } |
---|
| 162 | |
---|
| 163 | void PrintErrLn(Str *str) { |
---|
| 164 | fprintf(stderr, "%s\n", str->c_str()); |
---|
| 165 | } |
---|
| 166 | |
---|
| 167 | void Print(const char *str) { |
---|
| 168 | printf("%s", str); |
---|
| 169 | } |
---|
| 170 | |
---|
| 171 | void PrintLn(const char *str) { |
---|
| 172 | printf("%s\n", str); |
---|
| 173 | } |
---|
| 174 | |
---|
| 175 | void PrintErr(const char *str) { |
---|
| 176 | fprintf(stderr, "%s", str); |
---|
| 177 | } |
---|
| 178 | |
---|
| 179 | void PrintErrLn(const char *str) { |
---|
| 180 | fprintf(stderr, "%s\n", str); |
---|
| 181 | } |
---|
| 182 | |
---|
| 183 | void Print(Int i) { |
---|
| 184 | printf("%" WORD_FMT "d", i); |
---|
| 185 | } |
---|
| 186 | |
---|
| 187 | void PrintLn(Int i) { |
---|
| 188 | printf("%" WORD_FMT "d\n", i); |
---|
| 189 | } |
---|
| 190 | |
---|
| 191 | void PrintErr(Int i) { |
---|
| 192 | fprintf(stderr, "%" WORD_FMT "d", i); |
---|
| 193 | } |
---|
| 194 | |
---|
| 195 | void PrintErrLn(Int i) { |
---|
| 196 | fprintf(stderr, "%" WORD_FMT "d\n", i); |
---|
| 197 | } |
---|
| 198 | |
---|
| 199 | Str *Pwd() { |
---|
| 200 | #ifdef PATH_MAX |
---|
| 201 | char *path = getcwd(NULL, PATH_MAX); |
---|
| 202 | #else |
---|
| 203 | char *path = getcwd(NULL, 8192); |
---|
| 204 | #endif |
---|
| 205 | Str *result = new Str(path); |
---|
| 206 | free(path); |
---|
| 207 | return result; |
---|
| 208 | } |
---|
| 209 | |
---|
| 210 | bool ChDir(const char *path) { |
---|
| 211 | return !chdir(path); |
---|
| 212 | } |
---|
| 213 | |
---|
| 214 | bool ChDir(Str *path) { |
---|
| 215 | return ChDir(path->c_str()); |
---|
| 216 | } |
---|
| 217 | |
---|
| 218 | bool FileStat(FileInfo &info, const char *path, bool follow_links) { |
---|
| 219 | struct stat st; |
---|
| 220 | if (follow_links) { |
---|
| 221 | if (stat(path, &st) < 0) |
---|
| 222 | return false; |
---|
| 223 | } else { |
---|
| 224 | if (lstat(path, &st) < 0) |
---|
| 225 | return false; |
---|
| 226 | } |
---|
| 227 | memset(&info, 0, sizeof(info)); |
---|
| 228 | if (S_ISDIR(st.st_mode)) { |
---|
| 229 | info.is_dir = true; |
---|
| 230 | } else if (S_ISREG(st.st_mode)) { |
---|
| 231 | info.is_file = true; |
---|
| 232 | } else if (S_ISLNK(st.st_mode)) { |
---|
| 233 | info.is_link = true; |
---|
| 234 | } else { |
---|
| 235 | info.is_other = true; |
---|
| 236 | } |
---|
| 237 | info.atime = st.st_atime; |
---|
| 238 | info.mtime = st.st_mtime; |
---|
| 239 | info.ctime = st.st_ctime; |
---|
| 240 | info.size = st.st_size; |
---|
| 241 | return true; |
---|
| 242 | } |
---|
| 243 | |
---|
| 244 | bool FileStat(FileInfo &info, Str *path, bool follow_links) { |
---|
| 245 | return FileStat(info, path->c_str(), follow_links); |
---|
| 246 | } |
---|
| 247 | |
---|
| 248 | FileInfo *FileStat(const char *path, bool follow_links) { |
---|
| 249 | FileInfo info; |
---|
| 250 | if (FileStat(info, path, follow_links)) |
---|
| 251 | return new FileInfo(info); |
---|
| 252 | else |
---|
| 253 | return NULL; |
---|
| 254 | } |
---|
| 255 | |
---|
| 256 | FileInfo *FileStat(Str *path, bool follow_links) { |
---|
| 257 | return FileStat(path->c_str(), follow_links); |
---|
| 258 | } |
---|
| 259 | |
---|
| 260 | StrArr *ListFiles(const char *path) { |
---|
| 261 | #ifdef HAVE_DIRENT_H |
---|
| 262 | StrArr *result = new StrArr(); |
---|
| 263 | DIR *dir = opendir(path); |
---|
| 264 | if (!dir) |
---|
| 265 | return NULL; |
---|
| 266 | for (;;) { |
---|
| 267 | struct dirent *entry = readdir(dir); |
---|
| 268 | if (!entry) |
---|
| 269 | break; |
---|
| 270 | if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) |
---|
| 271 | continue; |
---|
| 272 | result->add(new Str(entry->d_name)); |
---|
| 273 | } |
---|
| 274 | closedir(dir); |
---|
| 275 | return result; |
---|
| 276 | #else |
---|
| 277 | return NULL; |
---|
| 278 | #endif |
---|
| 279 | } |
---|
| 280 | |
---|
| 281 | StrArr *ListFiles(Str *path) { |
---|
| 282 | return ListFiles(path->c_str()); |
---|
| 283 | } |
---|
| 284 | |
---|
| 285 | static void WalkDir(StrArr *acc, const char *path, int mode) { |
---|
| 286 | StrArr *files = ListFiles(path); |
---|
| 287 | if (!files) |
---|
| 288 | return; |
---|
| 289 | FileInfo info; |
---|
| 290 | for (Int i = 0; i < files->len(); i++) { |
---|
| 291 | Str *newpath = new Str(path); |
---|
| 292 | if (!newpath->ends_with(PathSeparator)) |
---|
| 293 | newpath->add(PathSeparator); |
---|
| 294 | newpath->add(files->at(i)); |
---|
| 295 | if (FileStat(info, newpath)) { |
---|
| 296 | if (info.is_dir) { |
---|
| 297 | newpath->add(PathSeparator); |
---|
| 298 | WalkDir(acc, newpath->c_str(), mode); |
---|
| 299 | if (mode & ListFilesAndDirs) |
---|
| 300 | acc->add(newpath); |
---|
| 301 | } else { |
---|
| 302 | acc->add(newpath); |
---|
| 303 | } |
---|
| 304 | } |
---|
| 305 | } |
---|
| 306 | } |
---|
| 307 | |
---|
| 308 | StrArr *ListFileTree(const char *path, int mode) { |
---|
| 309 | StrArr *result = new StrArr(); |
---|
| 310 | FileInfo info; |
---|
| 311 | if (FileStat(info, path, true)) { |
---|
| 312 | if (info.is_dir) { |
---|
| 313 | Str *dir = new Str(path); |
---|
| 314 | if (!dir->ends_with(PathSeparator)) |
---|
| 315 | dir->add(PathSeparator); |
---|
| 316 | Int prefixlen = dir->len(); |
---|
| 317 | result->add(dir); |
---|
| 318 | WalkDir(result, dir->c_str(), mode); |
---|
| 319 | if (mode & ListFilesRelative) { |
---|
| 320 | for (Int i = 0; i < result->len(); i++) { |
---|
| 321 | result->at(i)->remove(0, prefixlen); |
---|
| 322 | } |
---|
| 323 | } |
---|
| 324 | } else { |
---|
| 325 | if ((mode & ListFilesRelative) == 0) |
---|
| 326 | result->add(S(path)); |
---|
| 327 | } |
---|
| 328 | } |
---|
| 329 | return result; |
---|
| 330 | } |
---|
| 331 | |
---|
| 332 | StrArr *ListFileTree(Str *path, int mode) { |
---|
| 333 | return ListFileTree(path->c_str(), mode); |
---|
| 334 | } |
---|
| 335 | |
---|
| 336 | Str *DirName(Str *path) { |
---|
| 337 | Int pos = path->rfind(PathSeparator); |
---|
| 338 | if (pos == NOWHERE) { |
---|
| 339 | return path->clone(); |
---|
| 340 | } else { |
---|
| 341 | return path->range_excl(0, pos); |
---|
| 342 | } |
---|
| 343 | } |
---|
| 344 | |
---|
| 345 | Str *BaseName(Str *path) { |
---|
| 346 | Int pos = path->rfind(PathSeparator); |
---|
| 347 | if (pos == NOWHERE) { |
---|
| 348 | return path->clone(); |
---|
| 349 | } else { |
---|
| 350 | return path->range_excl(pos+1, path->len()); |
---|
| 351 | } |
---|
| 352 | } |
---|
| 353 | |
---|
| 354 | Str *FileExtension(Str *path) { |
---|
| 355 | Int slash = path->rfind(PathSeparator); |
---|
| 356 | Int dot = path->rfind('.'); |
---|
| 357 | if (dot == NOWHERE || dot < slash) { |
---|
| 358 | return S(""); |
---|
| 359 | } else { |
---|
| 360 | return path->range_excl(dot, path->len()); |
---|
| 361 | } |
---|
| 362 | } |
---|
| 363 | |
---|
| 364 | |
---|
| 365 | static bool MakeDirRec(Str *path) { |
---|
| 366 | FileInfo info; |
---|
| 367 | path = path->clone(); |
---|
| 368 | for (Int i = 1; i < path->len();) { |
---|
| 369 | Int p = path->find(PathSeparator, i); |
---|
| 370 | if (p == NOWHERE) |
---|
| 371 | break; |
---|
| 372 | path->at(p) = '\0'; |
---|
| 373 | if (FileStat(info, path, true)) { |
---|
| 374 | if (!info.is_dir) |
---|
| 375 | return false; |
---|
| 376 | } else if (mkdir(path->c_str(), 0777) < 0) { |
---|
| 377 | return false; |
---|
| 378 | } |
---|
| 379 | path->at(p) = PathSeparator[0]; |
---|
| 380 | i = p+1; |
---|
| 381 | } |
---|
| 382 | if (FileStat(info, path, true)) { |
---|
| 383 | if (!info.is_dir) |
---|
| 384 | return false; |
---|
| 385 | } else if (mkdir(path->c_str(), 0777) < 0) { |
---|
| 386 | return false; |
---|
| 387 | } |
---|
| 388 | return true; |
---|
| 389 | } |
---|
| 390 | |
---|
| 391 | bool MakeDir(const char *path, bool recursive) { |
---|
| 392 | if (!recursive) |
---|
| 393 | return mkdir(path, 0777) >= 0; |
---|
| 394 | return MakeDirRec(S(path)); |
---|
| 395 | } |
---|
| 396 | |
---|
| 397 | bool MakeDir(Str *path, bool recursive) { |
---|
| 398 | if (!recursive) |
---|
| 399 | return mkdir(path->c_str(), 0777) >= 0; |
---|
| 400 | return MakeDirRec(path); |
---|
| 401 | } |
---|
| 402 | |
---|
| 403 | bool RemoveDir(const char *path) { |
---|
| 404 | return rmdir(path) >= 0; |
---|
| 405 | } |
---|
| 406 | |
---|
| 407 | bool RemoveDir(Str *path) { |
---|
| 408 | return RemoveDir(path->c_str()); |
---|
| 409 | } |
---|
| 410 | |
---|
| 411 | bool RemoveFile(const char *path) { |
---|
| 412 | return unlink(path) >= 0; |
---|
| 413 | } |
---|
| 414 | |
---|
| 415 | bool RemoveFile(Str *path) { |
---|
| 416 | return RemoveFile(path->c_str()); |
---|
| 417 | } |
---|
| 418 | |
---|
| 419 | |
---|
| 420 | bool Rename(const char *path, const char *path2) { |
---|
| 421 | return rename(path, path2) >= 0; |
---|
| 422 | } |
---|
| 423 | |
---|
| 424 | bool Rename(Str *path, Str *path2) { |
---|
| 425 | return Rename(path->c_str(), path2->c_str()); |
---|
| 426 | } |
---|