| OLD | NEW |
| 1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include <errno.h> | 5 #include <errno.h> |
| 6 #include <fcntl.h> | 6 #include <fcntl.h> |
| 7 #include <signal.h> | 7 #include <signal.h> |
| 8 #include <stdlib.h> | 8 #include <stdlib.h> |
| 9 #include <string.h> | 9 #include <string.h> |
| 10 #include <sys/stat.h> | 10 #include <sys/stat.h> |
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| 163 | 163 |
| 164 | 164 |
| 165 // A utility class that takes the array of command arguments and puts then in an | 165 // A utility class that takes the array of command arguments and puts then in an |
| 166 // array of new[]ed UTF-8 C strings. Deallocates them again when it goes out of | 166 // array of new[]ed UTF-8 C strings. Deallocates them again when it goes out of |
| 167 // scope. | 167 // scope. |
| 168 class ExecArgs { | 168 class ExecArgs { |
| 169 public: | 169 public: |
| 170 ExecArgs() { | 170 ExecArgs() { |
| 171 exec_args_[0] = NULL; | 171 exec_args_[0] = NULL; |
| 172 } | 172 } |
| 173 bool Init(Isolate* isolate, Local<Value> arg0, Local<Array> command_args) { | 173 bool Init(Isolate* isolate, Handle<Value> arg0, Handle<Array> command_args) { |
| 174 String::Utf8Value prog(arg0); | 174 String::Utf8Value prog(arg0); |
| 175 if (*prog == NULL) { | 175 if (*prog == NULL) { |
| 176 const char* message = | 176 const char* message = |
| 177 "os.system(): String conversion of program name failed"; | 177 "os.system(): String conversion of program name failed"; |
| 178 isolate->ThrowException( | 178 isolate->ThrowException(String::NewFromUtf8(isolate, message)); |
| 179 String::NewFromUtf8(isolate, message, NewStringType::kNormal) | |
| 180 .ToLocalChecked()); | |
| 181 return false; | 179 return false; |
| 182 } | 180 } |
| 183 int len = prog.length() + 3; | 181 int len = prog.length() + 3; |
| 184 char* c_arg = new char[len]; | 182 char* c_arg = new char[len]; |
| 185 snprintf(c_arg, len, "%s", *prog); | 183 snprintf(c_arg, len, "%s", *prog); |
| 186 exec_args_[0] = c_arg; | 184 exec_args_[0] = c_arg; |
| 187 int i = 1; | 185 int i = 1; |
| 188 for (unsigned j = 0; j < command_args->Length(); i++, j++) { | 186 for (unsigned j = 0; j < command_args->Length(); i++, j++) { |
| 189 Local<Value> arg( | 187 Handle<Value> arg(command_args->Get(Integer::New(isolate, j))); |
| 190 command_args->Get(isolate->GetCurrentContext(), | |
| 191 Integer::New(isolate, j)).ToLocalChecked()); | |
| 192 String::Utf8Value utf8_arg(arg); | 188 String::Utf8Value utf8_arg(arg); |
| 193 if (*utf8_arg == NULL) { | 189 if (*utf8_arg == NULL) { |
| 194 exec_args_[i] = NULL; // Consistent state for destructor. | 190 exec_args_[i] = NULL; // Consistent state for destructor. |
| 195 const char* message = | 191 const char* message = |
| 196 "os.system(): String conversion of argument failed."; | 192 "os.system(): String conversion of argument failed."; |
| 197 isolate->ThrowException( | 193 isolate->ThrowException(String::NewFromUtf8(isolate, message)); |
| 198 String::NewFromUtf8(isolate, message, NewStringType::kNormal) | |
| 199 .ToLocalChecked()); | |
| 200 return false; | 194 return false; |
| 201 } | 195 } |
| 202 int len = utf8_arg.length() + 1; | 196 int len = utf8_arg.length() + 1; |
| 203 char* c_arg = new char[len]; | 197 char* c_arg = new char[len]; |
| 204 snprintf(c_arg, len, "%s", *utf8_arg); | 198 snprintf(c_arg, len, "%s", *utf8_arg); |
| 205 exec_args_[i] = c_arg; | 199 exec_args_[i] = c_arg; |
| 206 } | 200 } |
| 207 exec_args_[i] = NULL; | 201 exec_args_[i] = NULL; |
| 208 return true; | 202 return true; |
| 209 } | 203 } |
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| 224 char* exec_args_[kMaxArgs + 1]; | 218 char* exec_args_[kMaxArgs + 1]; |
| 225 }; | 219 }; |
| 226 | 220 |
| 227 | 221 |
| 228 // Gets the optional timeouts from the arguments to the system() call. | 222 // Gets the optional timeouts from the arguments to the system() call. |
| 229 static bool GetTimeouts(const v8::FunctionCallbackInfo<v8::Value>& args, | 223 static bool GetTimeouts(const v8::FunctionCallbackInfo<v8::Value>& args, |
| 230 int* read_timeout, | 224 int* read_timeout, |
| 231 int* total_timeout) { | 225 int* total_timeout) { |
| 232 if (args.Length() > 3) { | 226 if (args.Length() > 3) { |
| 233 if (args[3]->IsNumber()) { | 227 if (args[3]->IsNumber()) { |
| 234 *total_timeout = args[3] | 228 *total_timeout = args[3]->Int32Value(); |
| 235 ->Int32Value(args.GetIsolate()->GetCurrentContext()) | |
| 236 .FromJust(); | |
| 237 } else { | 229 } else { |
| 238 args.GetIsolate()->ThrowException( | 230 args.GetIsolate()->ThrowException(String::NewFromUtf8( |
| 239 String::NewFromUtf8(args.GetIsolate(), | 231 args.GetIsolate(), "system: Argument 4 must be a number")); |
| 240 "system: Argument 4 must be a number", | |
| 241 NewStringType::kNormal).ToLocalChecked()); | |
| 242 return false; | 232 return false; |
| 243 } | 233 } |
| 244 } | 234 } |
| 245 if (args.Length() > 2) { | 235 if (args.Length() > 2) { |
| 246 if (args[2]->IsNumber()) { | 236 if (args[2]->IsNumber()) { |
| 247 *read_timeout = args[2] | 237 *read_timeout = args[2]->Int32Value(); |
| 248 ->Int32Value(args.GetIsolate()->GetCurrentContext()) | |
| 249 .FromJust(); | |
| 250 } else { | 238 } else { |
| 251 args.GetIsolate()->ThrowException( | 239 args.GetIsolate()->ThrowException(String::NewFromUtf8( |
| 252 String::NewFromUtf8(args.GetIsolate(), | 240 args.GetIsolate(), "system: Argument 3 must be a number")); |
| 253 "system: Argument 3 must be a number", | |
| 254 NewStringType::kNormal).ToLocalChecked()); | |
| 255 return false; | 241 return false; |
| 256 } | 242 } |
| 257 } | 243 } |
| 258 return true; | 244 return true; |
| 259 } | 245 } |
| 260 | 246 |
| 261 | 247 |
| 262 static const int kReadFD = 0; | 248 static const int kReadFD = 0; |
| 263 static const int kWriteFD = 1; | 249 static const int kWriteFD = 1; |
| 264 | 250 |
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| 289 | 275 |
| 290 // Runs in the parent process. Checks that the child was able to exec (closing | 276 // Runs in the parent process. Checks that the child was able to exec (closing |
| 291 // the file desriptor), or reports an error if it failed. | 277 // the file desriptor), or reports an error if it failed. |
| 292 static bool ChildLaunchedOK(Isolate* isolate, int* exec_error_fds) { | 278 static bool ChildLaunchedOK(Isolate* isolate, int* exec_error_fds) { |
| 293 ssize_t bytes_read; | 279 ssize_t bytes_read; |
| 294 int err; | 280 int err; |
| 295 do { | 281 do { |
| 296 bytes_read = read(exec_error_fds[kReadFD], &err, sizeof(err)); | 282 bytes_read = read(exec_error_fds[kReadFD], &err, sizeof(err)); |
| 297 } while (bytes_read == -1 && errno == EINTR); | 283 } while (bytes_read == -1 && errno == EINTR); |
| 298 if (bytes_read != 0) { | 284 if (bytes_read != 0) { |
| 299 isolate->ThrowException( | 285 isolate->ThrowException(String::NewFromUtf8(isolate, strerror(err))); |
| 300 String::NewFromUtf8(isolate, strerror(err), NewStringType::kNormal) | |
| 301 .ToLocalChecked()); | |
| 302 return false; | 286 return false; |
| 303 } | 287 } |
| 304 return true; | 288 return true; |
| 305 } | 289 } |
| 306 | 290 |
| 307 | 291 |
| 308 // Accumulates the output from the child in a string handle. Returns true if it | 292 // Accumulates the output from the child in a string handle. Returns true if it |
| 309 // succeeded or false if an exception was thrown. | 293 // succeeded or false if an exception was thrown. |
| 310 static Local<Value> GetStdout(Isolate* isolate, int child_fd, | 294 static Handle<Value> GetStdout(Isolate* isolate, |
| 311 const struct timeval& start_time, | 295 int child_fd, |
| 312 int read_timeout, int total_timeout) { | 296 const struct timeval& start_time, |
| 313 Local<String> accumulator = String::Empty(isolate); | 297 int read_timeout, |
| 298 int total_timeout) { |
| 299 Handle<String> accumulator = String::Empty(isolate); |
| 314 | 300 |
| 315 int fullness = 0; | 301 int fullness = 0; |
| 316 static const int kStdoutReadBufferSize = 4096; | 302 static const int kStdoutReadBufferSize = 4096; |
| 317 char buffer[kStdoutReadBufferSize]; | 303 char buffer[kStdoutReadBufferSize]; |
| 318 | 304 |
| 319 if (fcntl(child_fd, F_SETFL, O_NONBLOCK) != 0) { | 305 if (fcntl(child_fd, F_SETFL, O_NONBLOCK) != 0) { |
| 320 return isolate->ThrowException( | 306 return isolate->ThrowException( |
| 321 String::NewFromUtf8(isolate, strerror(errno), NewStringType::kNormal) | 307 String::NewFromUtf8(isolate, strerror(errno))); |
| 322 .ToLocalChecked()); | |
| 323 } | 308 } |
| 324 | 309 |
| 325 int bytes_read; | 310 int bytes_read; |
| 326 do { | 311 do { |
| 327 bytes_read = static_cast<int>( | 312 bytes_read = static_cast<int>( |
| 328 read(child_fd, buffer + fullness, kStdoutReadBufferSize - fullness)); | 313 read(child_fd, buffer + fullness, kStdoutReadBufferSize - fullness)); |
| 329 if (bytes_read == -1) { | 314 if (bytes_read == -1) { |
| 330 if (errno == EAGAIN) { | 315 if (errno == EAGAIN) { |
| 331 if (!WaitOnFD(child_fd, | 316 if (!WaitOnFD(child_fd, |
| 332 read_timeout, | 317 read_timeout, |
| 333 total_timeout, | 318 total_timeout, |
| 334 start_time) || | 319 start_time) || |
| 335 (TimeIsOut(start_time, total_timeout))) { | 320 (TimeIsOut(start_time, total_timeout))) { |
| 336 return isolate->ThrowException( | 321 return isolate->ThrowException( |
| 337 String::NewFromUtf8(isolate, "Timed out waiting for output", | 322 String::NewFromUtf8(isolate, "Timed out waiting for output")); |
| 338 NewStringType::kNormal).ToLocalChecked()); | |
| 339 } | 323 } |
| 340 continue; | 324 continue; |
| 341 } else if (errno == EINTR) { | 325 } else if (errno == EINTR) { |
| 342 continue; | 326 continue; |
| 343 } else { | 327 } else { |
| 344 break; | 328 break; |
| 345 } | 329 } |
| 346 } | 330 } |
| 347 if (bytes_read + fullness > 0) { | 331 if (bytes_read + fullness > 0) { |
| 348 int length = bytes_read == 0 ? | 332 int length = bytes_read == 0 ? |
| 349 bytes_read + fullness : | 333 bytes_read + fullness : |
| 350 LengthWithoutIncompleteUtf8(buffer, bytes_read + fullness); | 334 LengthWithoutIncompleteUtf8(buffer, bytes_read + fullness); |
| 351 Local<String> addition = | 335 Handle<String> addition = |
| 352 String::NewFromUtf8(isolate, buffer, NewStringType::kNormal, length) | 336 String::NewFromUtf8(isolate, buffer, String::kNormalString, length); |
| 353 .ToLocalChecked(); | |
| 354 accumulator = String::Concat(accumulator, addition); | 337 accumulator = String::Concat(accumulator, addition); |
| 355 fullness = bytes_read + fullness - length; | 338 fullness = bytes_read + fullness - length; |
| 356 memcpy(buffer, buffer + length, fullness); | 339 memcpy(buffer, buffer + length, fullness); |
| 357 } | 340 } |
| 358 } while (bytes_read != 0); | 341 } while (bytes_read != 0); |
| 359 return accumulator; | 342 return accumulator; |
| 360 } | 343 } |
| 361 | 344 |
| 362 | 345 |
| 363 // Modern Linux has the waitid call, which is like waitpid, but more useful | 346 // Modern Linux has the waitid call, which is like waitpid, but more useful |
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| 390 siginfo_t child_info; | 373 siginfo_t child_info; |
| 391 child_info.si_pid = 0; | 374 child_info.si_pid = 0; |
| 392 int useconds = 1; | 375 int useconds = 1; |
| 393 // Wait for child to exit. | 376 // Wait for child to exit. |
| 394 while (child_info.si_pid == 0) { | 377 while (child_info.si_pid == 0) { |
| 395 waitid(P_PID, pid, &child_info, WEXITED | WNOHANG | WNOWAIT); | 378 waitid(P_PID, pid, &child_info, WEXITED | WNOHANG | WNOWAIT); |
| 396 usleep(useconds); | 379 usleep(useconds); |
| 397 if (useconds < 1000000) useconds <<= 1; | 380 if (useconds < 1000000) useconds <<= 1; |
| 398 if ((read_timeout != -1 && useconds / 1000 > read_timeout) || | 381 if ((read_timeout != -1 && useconds / 1000 > read_timeout) || |
| 399 (TimeIsOut(start_time, total_timeout))) { | 382 (TimeIsOut(start_time, total_timeout))) { |
| 400 isolate->ThrowException( | 383 isolate->ThrowException(String::NewFromUtf8( |
| 401 String::NewFromUtf8(isolate, | 384 isolate, "Timed out waiting for process to terminate")); |
| 402 "Timed out waiting for process to terminate", | |
| 403 NewStringType::kNormal).ToLocalChecked()); | |
| 404 kill(pid, SIGINT); | 385 kill(pid, SIGINT); |
| 405 return false; | 386 return false; |
| 406 } | 387 } |
| 407 } | 388 } |
| 408 if (child_info.si_code == CLD_KILLED) { | 389 if (child_info.si_code == CLD_KILLED) { |
| 409 char message[999]; | 390 char message[999]; |
| 410 snprintf(message, | 391 snprintf(message, |
| 411 sizeof(message), | 392 sizeof(message), |
| 412 "Child killed by signal %d", | 393 "Child killed by signal %d", |
| 413 child_info.si_status); | 394 child_info.si_status); |
| 414 isolate->ThrowException( | 395 isolate->ThrowException(String::NewFromUtf8(isolate, message)); |
| 415 String::NewFromUtf8(isolate, message, NewStringType::kNormal) | |
| 416 .ToLocalChecked()); | |
| 417 return false; | 396 return false; |
| 418 } | 397 } |
| 419 if (child_info.si_code == CLD_EXITED && child_info.si_status != 0) { | 398 if (child_info.si_code == CLD_EXITED && child_info.si_status != 0) { |
| 420 char message[999]; | 399 char message[999]; |
| 421 snprintf(message, | 400 snprintf(message, |
| 422 sizeof(message), | 401 sizeof(message), |
| 423 "Child exited with status %d", | 402 "Child exited with status %d", |
| 424 child_info.si_status); | 403 child_info.si_status); |
| 425 isolate->ThrowException( | 404 isolate->ThrowException(String::NewFromUtf8(isolate, message)); |
| 426 String::NewFromUtf8(isolate, message, NewStringType::kNormal) | |
| 427 .ToLocalChecked()); | |
| 428 return false; | 405 return false; |
| 429 } | 406 } |
| 430 | 407 |
| 431 #else // No waitid call. | 408 #else // No waitid call. |
| 432 | 409 |
| 433 int child_status; | 410 int child_status; |
| 434 waitpid(pid, &child_status, 0); // We hang here if the child doesn't exit. | 411 waitpid(pid, &child_status, 0); // We hang here if the child doesn't exit. |
| 435 child_waiter.ChildIsDeadNow(); | 412 child_waiter.ChildIsDeadNow(); |
| 436 if (WIFSIGNALED(child_status)) { | 413 if (WIFSIGNALED(child_status)) { |
| 437 char message[999]; | 414 char message[999]; |
| 438 snprintf(message, | 415 snprintf(message, |
| 439 sizeof(message), | 416 sizeof(message), |
| 440 "Child killed by signal %d", | 417 "Child killed by signal %d", |
| 441 WTERMSIG(child_status)); | 418 WTERMSIG(child_status)); |
| 442 isolate->ThrowException( | 419 isolate->ThrowException(String::NewFromUtf8(isolate, message)); |
| 443 String::NewFromUtf8(isolate, message, NewStringType::kNormal) | |
| 444 .ToLocalChecked()); | |
| 445 return false; | 420 return false; |
| 446 } | 421 } |
| 447 if (WEXITSTATUS(child_status) != 0) { | 422 if (WEXITSTATUS(child_status) != 0) { |
| 448 char message[999]; | 423 char message[999]; |
| 449 int exit_status = WEXITSTATUS(child_status); | 424 int exit_status = WEXITSTATUS(child_status); |
| 450 snprintf(message, | 425 snprintf(message, |
| 451 sizeof(message), | 426 sizeof(message), |
| 452 "Child exited with status %d", | 427 "Child exited with status %d", |
| 453 exit_status); | 428 exit_status); |
| 454 isolate->ThrowException( | 429 isolate->ThrowException(String::NewFromUtf8(isolate, message)); |
| 455 String::NewFromUtf8(isolate, message, NewStringType::kNormal) | |
| 456 .ToLocalChecked()); | |
| 457 return false; | 430 return false; |
| 458 } | 431 } |
| 459 | 432 |
| 460 #endif // No waitid call. | 433 #endif // No waitid call. |
| 461 | 434 |
| 462 return true; | 435 return true; |
| 463 } | 436 } |
| 464 | 437 |
| 465 | 438 |
| 466 // Implementation of the system() function (see d8.h for details). | 439 // Implementation of the system() function (see d8.h for details). |
| 467 void Shell::System(const v8::FunctionCallbackInfo<v8::Value>& args) { | 440 void Shell::System(const v8::FunctionCallbackInfo<v8::Value>& args) { |
| 468 HandleScope scope(args.GetIsolate()); | 441 HandleScope scope(args.GetIsolate()); |
| 469 int read_timeout = -1; | 442 int read_timeout = -1; |
| 470 int total_timeout = -1; | 443 int total_timeout = -1; |
| 471 if (!GetTimeouts(args, &read_timeout, &total_timeout)) return; | 444 if (!GetTimeouts(args, &read_timeout, &total_timeout)) return; |
| 472 Local<Array> command_args; | 445 Handle<Array> command_args; |
| 473 if (args.Length() > 1) { | 446 if (args.Length() > 1) { |
| 474 if (!args[1]->IsArray()) { | 447 if (!args[1]->IsArray()) { |
| 475 args.GetIsolate()->ThrowException( | 448 args.GetIsolate()->ThrowException(String::NewFromUtf8( |
| 476 String::NewFromUtf8(args.GetIsolate(), | 449 args.GetIsolate(), "system: Argument 2 must be an array")); |
| 477 "system: Argument 2 must be an array", | |
| 478 NewStringType::kNormal).ToLocalChecked()); | |
| 479 return; | 450 return; |
| 480 } | 451 } |
| 481 command_args = Local<Array>::Cast(args[1]); | 452 command_args = Handle<Array>::Cast(args[1]); |
| 482 } else { | 453 } else { |
| 483 command_args = Array::New(args.GetIsolate(), 0); | 454 command_args = Array::New(args.GetIsolate(), 0); |
| 484 } | 455 } |
| 485 if (command_args->Length() > ExecArgs::kMaxArgs) { | 456 if (command_args->Length() > ExecArgs::kMaxArgs) { |
| 486 args.GetIsolate()->ThrowException( | 457 args.GetIsolate()->ThrowException(String::NewFromUtf8( |
| 487 String::NewFromUtf8(args.GetIsolate(), "Too many arguments to system()", | 458 args.GetIsolate(), "Too many arguments to system()")); |
| 488 NewStringType::kNormal).ToLocalChecked()); | |
| 489 return; | 459 return; |
| 490 } | 460 } |
| 491 if (args.Length() < 1) { | 461 if (args.Length() < 1) { |
| 492 args.GetIsolate()->ThrowException( | 462 args.GetIsolate()->ThrowException(String::NewFromUtf8( |
| 493 String::NewFromUtf8(args.GetIsolate(), "Too few arguments to system()", | 463 args.GetIsolate(), "Too few arguments to system()")); |
| 494 NewStringType::kNormal).ToLocalChecked()); | |
| 495 return; | 464 return; |
| 496 } | 465 } |
| 497 | 466 |
| 498 struct timeval start_time; | 467 struct timeval start_time; |
| 499 gettimeofday(&start_time, NULL); | 468 gettimeofday(&start_time, NULL); |
| 500 | 469 |
| 501 ExecArgs exec_args; | 470 ExecArgs exec_args; |
| 502 if (!exec_args.Init(args.GetIsolate(), args[0], command_args)) { | 471 if (!exec_args.Init(args.GetIsolate(), args[0], command_args)) { |
| 503 return; | 472 return; |
| 504 } | 473 } |
| 505 int exec_error_fds[2]; | 474 int exec_error_fds[2]; |
| 506 int stdout_fds[2]; | 475 int stdout_fds[2]; |
| 507 | 476 |
| 508 if (pipe(exec_error_fds) != 0) { | 477 if (pipe(exec_error_fds) != 0) { |
| 509 args.GetIsolate()->ThrowException( | 478 args.GetIsolate()->ThrowException( |
| 510 String::NewFromUtf8(args.GetIsolate(), "pipe syscall failed.", | 479 String::NewFromUtf8(args.GetIsolate(), "pipe syscall failed.")); |
| 511 NewStringType::kNormal).ToLocalChecked()); | |
| 512 return; | 480 return; |
| 513 } | 481 } |
| 514 if (pipe(stdout_fds) != 0) { | 482 if (pipe(stdout_fds) != 0) { |
| 515 args.GetIsolate()->ThrowException( | 483 args.GetIsolate()->ThrowException( |
| 516 String::NewFromUtf8(args.GetIsolate(), "pipe syscall failed.", | 484 String::NewFromUtf8(args.GetIsolate(), "pipe syscall failed.")); |
| 517 NewStringType::kNormal).ToLocalChecked()); | |
| 518 return; | 485 return; |
| 519 } | 486 } |
| 520 | 487 |
| 521 pid_t pid = fork(); | 488 pid_t pid = fork(); |
| 522 if (pid == 0) { // Child process. | 489 if (pid == 0) { // Child process. |
| 523 ExecSubprocess(exec_error_fds, stdout_fds, exec_args); | 490 ExecSubprocess(exec_error_fds, stdout_fds, exec_args); |
| 524 exit(1); | 491 exit(1); |
| 525 } | 492 } |
| 526 | 493 |
| 527 // Parent process. Ensure that we clean up if we exit this function early. | 494 // Parent process. Ensure that we clean up if we exit this function early. |
| 528 ZombieProtector child_waiter(pid); | 495 ZombieProtector child_waiter(pid); |
| 529 close(exec_error_fds[kWriteFD]); | 496 close(exec_error_fds[kWriteFD]); |
| 530 close(stdout_fds[kWriteFD]); | 497 close(stdout_fds[kWriteFD]); |
| 531 OpenFDCloser error_read_closer(exec_error_fds[kReadFD]); | 498 OpenFDCloser error_read_closer(exec_error_fds[kReadFD]); |
| 532 OpenFDCloser stdout_read_closer(stdout_fds[kReadFD]); | 499 OpenFDCloser stdout_read_closer(stdout_fds[kReadFD]); |
| 533 | 500 |
| 534 if (!ChildLaunchedOK(args.GetIsolate(), exec_error_fds)) return; | 501 if (!ChildLaunchedOK(args.GetIsolate(), exec_error_fds)) return; |
| 535 | 502 |
| 536 Local<Value> accumulator = GetStdout(args.GetIsolate(), stdout_fds[kReadFD], | 503 Handle<Value> accumulator = GetStdout(args.GetIsolate(), |
| 537 start_time, read_timeout, total_timeout); | 504 stdout_fds[kReadFD], |
| 505 start_time, |
| 506 read_timeout, |
| 507 total_timeout); |
| 538 if (accumulator->IsUndefined()) { | 508 if (accumulator->IsUndefined()) { |
| 539 kill(pid, SIGINT); // On timeout, kill the subprocess. | 509 kill(pid, SIGINT); // On timeout, kill the subprocess. |
| 540 args.GetReturnValue().Set(accumulator); | 510 args.GetReturnValue().Set(accumulator); |
| 541 return; | 511 return; |
| 542 } | 512 } |
| 543 | 513 |
| 544 if (!WaitForChild(args.GetIsolate(), | 514 if (!WaitForChild(args.GetIsolate(), |
| 545 pid, | 515 pid, |
| 546 child_waiter, | 516 child_waiter, |
| 547 start_time, | 517 start_time, |
| 548 read_timeout, | 518 read_timeout, |
| 549 total_timeout)) { | 519 total_timeout)) { |
| 550 return; | 520 return; |
| 551 } | 521 } |
| 552 | 522 |
| 553 args.GetReturnValue().Set(accumulator); | 523 args.GetReturnValue().Set(accumulator); |
| 554 } | 524 } |
| 555 | 525 |
| 556 | 526 |
| 557 void Shell::ChangeDirectory(const v8::FunctionCallbackInfo<v8::Value>& args) { | 527 void Shell::ChangeDirectory(const v8::FunctionCallbackInfo<v8::Value>& args) { |
| 558 if (args.Length() != 1) { | 528 if (args.Length() != 1) { |
| 559 const char* message = "chdir() takes one argument"; | 529 const char* message = "chdir() takes one argument"; |
| 560 args.GetIsolate()->ThrowException( | 530 args.GetIsolate()->ThrowException( |
| 561 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 531 String::NewFromUtf8(args.GetIsolate(), message)); |
| 562 .ToLocalChecked()); | |
| 563 return; | 532 return; |
| 564 } | 533 } |
| 565 String::Utf8Value directory(args[0]); | 534 String::Utf8Value directory(args[0]); |
| 566 if (*directory == NULL) { | 535 if (*directory == NULL) { |
| 567 const char* message = "os.chdir(): String conversion of argument failed."; | 536 const char* message = "os.chdir(): String conversion of argument failed."; |
| 568 args.GetIsolate()->ThrowException( | 537 args.GetIsolate()->ThrowException( |
| 569 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 538 String::NewFromUtf8(args.GetIsolate(), message)); |
| 570 .ToLocalChecked()); | |
| 571 return; | 539 return; |
| 572 } | 540 } |
| 573 if (chdir(*directory) != 0) { | 541 if (chdir(*directory) != 0) { |
| 574 args.GetIsolate()->ThrowException( | 542 args.GetIsolate()->ThrowException( |
| 575 String::NewFromUtf8(args.GetIsolate(), strerror(errno), | 543 String::NewFromUtf8(args.GetIsolate(), strerror(errno))); |
| 576 NewStringType::kNormal).ToLocalChecked()); | |
| 577 return; | 544 return; |
| 578 } | 545 } |
| 579 } | 546 } |
| 580 | 547 |
| 581 | 548 |
| 582 void Shell::SetUMask(const v8::FunctionCallbackInfo<v8::Value>& args) { | 549 void Shell::SetUMask(const v8::FunctionCallbackInfo<v8::Value>& args) { |
| 583 if (args.Length() != 1) { | 550 if (args.Length() != 1) { |
| 584 const char* message = "umask() takes one argument"; | 551 const char* message = "umask() takes one argument"; |
| 585 args.GetIsolate()->ThrowException( | 552 args.GetIsolate()->ThrowException( |
| 586 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 553 String::NewFromUtf8(args.GetIsolate(), message)); |
| 587 .ToLocalChecked()); | |
| 588 return; | 554 return; |
| 589 } | 555 } |
| 590 if (args[0]->IsNumber()) { | 556 if (args[0]->IsNumber()) { |
| 591 #if V8_OS_NACL | 557 #if V8_OS_NACL |
| 592 // PNaCL has no support for umask. | 558 // PNaCL has no support for umask. |
| 593 int previous = 0; | 559 int previous = 0; |
| 594 #else | 560 #else |
| 595 int previous = umask( | 561 int previous = umask(args[0]->Int32Value()); |
| 596 args[0]->Int32Value(args.GetIsolate()->GetCurrentContext()).FromJust()); | |
| 597 #endif | 562 #endif |
| 598 args.GetReturnValue().Set(previous); | 563 args.GetReturnValue().Set(previous); |
| 599 return; | 564 return; |
| 600 } else { | 565 } else { |
| 601 const char* message = "umask() argument must be numeric"; | 566 const char* message = "umask() argument must be numeric"; |
| 602 args.GetIsolate()->ThrowException( | 567 args.GetIsolate()->ThrowException( |
| 603 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 568 String::NewFromUtf8(args.GetIsolate(), message)); |
| 604 .ToLocalChecked()); | |
| 605 return; | 569 return; |
| 606 } | 570 } |
| 607 } | 571 } |
| 608 | 572 |
| 609 | 573 |
| 610 static bool CheckItsADirectory(Isolate* isolate, char* directory) { | 574 static bool CheckItsADirectory(Isolate* isolate, char* directory) { |
| 611 struct stat stat_buf; | 575 struct stat stat_buf; |
| 612 int stat_result = stat(directory, &stat_buf); | 576 int stat_result = stat(directory, &stat_buf); |
| 613 if (stat_result != 0) { | 577 if (stat_result != 0) { |
| 614 isolate->ThrowException( | 578 isolate->ThrowException(String::NewFromUtf8(isolate, strerror(errno))); |
| 615 String::NewFromUtf8(isolate, strerror(errno), NewStringType::kNormal) | |
| 616 .ToLocalChecked()); | |
| 617 return false; | 579 return false; |
| 618 } | 580 } |
| 619 if ((stat_buf.st_mode & S_IFDIR) != 0) return true; | 581 if ((stat_buf.st_mode & S_IFDIR) != 0) return true; |
| 620 isolate->ThrowException( | 582 isolate->ThrowException(String::NewFromUtf8(isolate, strerror(EEXIST))); |
| 621 String::NewFromUtf8(isolate, strerror(EEXIST), NewStringType::kNormal) | |
| 622 .ToLocalChecked()); | |
| 623 return false; | 583 return false; |
| 624 } | 584 } |
| 625 | 585 |
| 626 | 586 |
| 627 // Returns true for success. Creates intermediate directories as needed. No | 587 // Returns true for success. Creates intermediate directories as needed. No |
| 628 // error if the directory exists already. | 588 // error if the directory exists already. |
| 629 static bool mkdirp(Isolate* isolate, char* directory, mode_t mask) { | 589 static bool mkdirp(Isolate* isolate, char* directory, mode_t mask) { |
| 630 int result = mkdir(directory, mask); | 590 int result = mkdir(directory, mask); |
| 631 if (result == 0) return true; | 591 if (result == 0) return true; |
| 632 if (errno == EEXIST) { | 592 if (errno == EEXIST) { |
| 633 return CheckItsADirectory(isolate, directory); | 593 return CheckItsADirectory(isolate, directory); |
| 634 } else if (errno == ENOENT) { // Intermediate path element is missing. | 594 } else if (errno == ENOENT) { // Intermediate path element is missing. |
| 635 char* last_slash = strrchr(directory, '/'); | 595 char* last_slash = strrchr(directory, '/'); |
| 636 if (last_slash == NULL) { | 596 if (last_slash == NULL) { |
| 637 isolate->ThrowException( | 597 isolate->ThrowException(String::NewFromUtf8(isolate, strerror(errno))); |
| 638 String::NewFromUtf8(isolate, strerror(errno), NewStringType::kNormal) | |
| 639 .ToLocalChecked()); | |
| 640 return false; | 598 return false; |
| 641 } | 599 } |
| 642 *last_slash = 0; | 600 *last_slash = 0; |
| 643 if (!mkdirp(isolate, directory, mask)) return false; | 601 if (!mkdirp(isolate, directory, mask)) return false; |
| 644 *last_slash = '/'; | 602 *last_slash = '/'; |
| 645 result = mkdir(directory, mask); | 603 result = mkdir(directory, mask); |
| 646 if (result == 0) return true; | 604 if (result == 0) return true; |
| 647 if (errno == EEXIST) { | 605 if (errno == EEXIST) { |
| 648 return CheckItsADirectory(isolate, directory); | 606 return CheckItsADirectory(isolate, directory); |
| 649 } | 607 } |
| 650 isolate->ThrowException( | 608 isolate->ThrowException(String::NewFromUtf8(isolate, strerror(errno))); |
| 651 String::NewFromUtf8(isolate, strerror(errno), NewStringType::kNormal) | |
| 652 .ToLocalChecked()); | |
| 653 return false; | 609 return false; |
| 654 } else { | 610 } else { |
| 655 isolate->ThrowException( | 611 isolate->ThrowException(String::NewFromUtf8(isolate, strerror(errno))); |
| 656 String::NewFromUtf8(isolate, strerror(errno), NewStringType::kNormal) | |
| 657 .ToLocalChecked()); | |
| 658 return false; | 612 return false; |
| 659 } | 613 } |
| 660 } | 614 } |
| 661 | 615 |
| 662 | 616 |
| 663 void Shell::MakeDirectory(const v8::FunctionCallbackInfo<v8::Value>& args) { | 617 void Shell::MakeDirectory(const v8::FunctionCallbackInfo<v8::Value>& args) { |
| 664 mode_t mask = 0777; | 618 mode_t mask = 0777; |
| 665 if (args.Length() == 2) { | 619 if (args.Length() == 2) { |
| 666 if (args[1]->IsNumber()) { | 620 if (args[1]->IsNumber()) { |
| 667 mask = args[1] | 621 mask = args[1]->Int32Value(); |
| 668 ->Int32Value(args.GetIsolate()->GetCurrentContext()) | |
| 669 .FromJust(); | |
| 670 } else { | 622 } else { |
| 671 const char* message = "mkdirp() second argument must be numeric"; | 623 const char* message = "mkdirp() second argument must be numeric"; |
| 672 args.GetIsolate()->ThrowException( | 624 args.GetIsolate()->ThrowException( |
| 673 String::NewFromUtf8(args.GetIsolate(), message, | 625 String::NewFromUtf8(args.GetIsolate(), message)); |
| 674 NewStringType::kNormal).ToLocalChecked()); | |
| 675 return; | 626 return; |
| 676 } | 627 } |
| 677 } else if (args.Length() != 1) { | 628 } else if (args.Length() != 1) { |
| 678 const char* message = "mkdirp() takes one or two arguments"; | 629 const char* message = "mkdirp() takes one or two arguments"; |
| 679 args.GetIsolate()->ThrowException( | 630 args.GetIsolate()->ThrowException( |
| 680 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 631 String::NewFromUtf8(args.GetIsolate(), message)); |
| 681 .ToLocalChecked()); | |
| 682 return; | 632 return; |
| 683 } | 633 } |
| 684 String::Utf8Value directory(args[0]); | 634 String::Utf8Value directory(args[0]); |
| 685 if (*directory == NULL) { | 635 if (*directory == NULL) { |
| 686 const char* message = "os.mkdirp(): String conversion of argument failed."; | 636 const char* message = "os.mkdirp(): String conversion of argument failed."; |
| 687 args.GetIsolate()->ThrowException( | 637 args.GetIsolate()->ThrowException( |
| 688 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 638 String::NewFromUtf8(args.GetIsolate(), message)); |
| 689 .ToLocalChecked()); | |
| 690 return; | 639 return; |
| 691 } | 640 } |
| 692 mkdirp(args.GetIsolate(), *directory, mask); | 641 mkdirp(args.GetIsolate(), *directory, mask); |
| 693 } | 642 } |
| 694 | 643 |
| 695 | 644 |
| 696 void Shell::RemoveDirectory(const v8::FunctionCallbackInfo<v8::Value>& args) { | 645 void Shell::RemoveDirectory(const v8::FunctionCallbackInfo<v8::Value>& args) { |
| 697 if (args.Length() != 1) { | 646 if (args.Length() != 1) { |
| 698 const char* message = "rmdir() takes one or two arguments"; | 647 const char* message = "rmdir() takes one or two arguments"; |
| 699 args.GetIsolate()->ThrowException( | 648 args.GetIsolate()->ThrowException( |
| 700 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 649 String::NewFromUtf8(args.GetIsolate(), message)); |
| 701 .ToLocalChecked()); | |
| 702 return; | 650 return; |
| 703 } | 651 } |
| 704 String::Utf8Value directory(args[0]); | 652 String::Utf8Value directory(args[0]); |
| 705 if (*directory == NULL) { | 653 if (*directory == NULL) { |
| 706 const char* message = "os.rmdir(): String conversion of argument failed."; | 654 const char* message = "os.rmdir(): String conversion of argument failed."; |
| 707 args.GetIsolate()->ThrowException( | 655 args.GetIsolate()->ThrowException( |
| 708 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 656 String::NewFromUtf8(args.GetIsolate(), message)); |
| 709 .ToLocalChecked()); | |
| 710 return; | 657 return; |
| 711 } | 658 } |
| 712 rmdir(*directory); | 659 rmdir(*directory); |
| 713 } | 660 } |
| 714 | 661 |
| 715 | 662 |
| 716 void Shell::SetEnvironment(const v8::FunctionCallbackInfo<v8::Value>& args) { | 663 void Shell::SetEnvironment(const v8::FunctionCallbackInfo<v8::Value>& args) { |
| 717 if (args.Length() != 2) { | 664 if (args.Length() != 2) { |
| 718 const char* message = "setenv() takes two arguments"; | 665 const char* message = "setenv() takes two arguments"; |
| 719 args.GetIsolate()->ThrowException( | 666 args.GetIsolate()->ThrowException( |
| 720 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 667 String::NewFromUtf8(args.GetIsolate(), message)); |
| 721 .ToLocalChecked()); | |
| 722 return; | 668 return; |
| 723 } | 669 } |
| 724 String::Utf8Value var(args[0]); | 670 String::Utf8Value var(args[0]); |
| 725 String::Utf8Value value(args[1]); | 671 String::Utf8Value value(args[1]); |
| 726 if (*var == NULL) { | 672 if (*var == NULL) { |
| 727 const char* message = | 673 const char* message = |
| 728 "os.setenv(): String conversion of variable name failed."; | 674 "os.setenv(): String conversion of variable name failed."; |
| 729 args.GetIsolate()->ThrowException( | 675 args.GetIsolate()->ThrowException( |
| 730 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 676 String::NewFromUtf8(args.GetIsolate(), message)); |
| 731 .ToLocalChecked()); | |
| 732 return; | 677 return; |
| 733 } | 678 } |
| 734 if (*value == NULL) { | 679 if (*value == NULL) { |
| 735 const char* message = | 680 const char* message = |
| 736 "os.setenv(): String conversion of variable contents failed."; | 681 "os.setenv(): String conversion of variable contents failed."; |
| 737 args.GetIsolate()->ThrowException( | 682 args.GetIsolate()->ThrowException( |
| 738 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 683 String::NewFromUtf8(args.GetIsolate(), message)); |
| 739 .ToLocalChecked()); | |
| 740 return; | 684 return; |
| 741 } | 685 } |
| 742 setenv(*var, *value, 1); | 686 setenv(*var, *value, 1); |
| 743 } | 687 } |
| 744 | 688 |
| 745 | 689 |
| 746 void Shell::UnsetEnvironment(const v8::FunctionCallbackInfo<v8::Value>& args) { | 690 void Shell::UnsetEnvironment(const v8::FunctionCallbackInfo<v8::Value>& args) { |
| 747 if (args.Length() != 1) { | 691 if (args.Length() != 1) { |
| 748 const char* message = "unsetenv() takes one argument"; | 692 const char* message = "unsetenv() takes one argument"; |
| 749 args.GetIsolate()->ThrowException( | 693 args.GetIsolate()->ThrowException( |
| 750 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 694 String::NewFromUtf8(args.GetIsolate(), message)); |
| 751 .ToLocalChecked()); | |
| 752 return; | 695 return; |
| 753 } | 696 } |
| 754 String::Utf8Value var(args[0]); | 697 String::Utf8Value var(args[0]); |
| 755 if (*var == NULL) { | 698 if (*var == NULL) { |
| 756 const char* message = | 699 const char* message = |
| 757 "os.setenv(): String conversion of variable name failed."; | 700 "os.setenv(): String conversion of variable name failed."; |
| 758 args.GetIsolate()->ThrowException( | 701 args.GetIsolate()->ThrowException( |
| 759 String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal) | 702 String::NewFromUtf8(args.GetIsolate(), message)); |
| 760 .ToLocalChecked()); | |
| 761 return; | 703 return; |
| 762 } | 704 } |
| 763 unsetenv(*var); | 705 unsetenv(*var); |
| 764 } | 706 } |
| 765 | 707 |
| 766 | 708 |
| 767 void Shell::AddOSMethods(Isolate* isolate, Local<ObjectTemplate> os_templ) { | 709 void Shell::AddOSMethods(Isolate* isolate, Handle<ObjectTemplate> os_templ) { |
| 768 os_templ->Set(String::NewFromUtf8(isolate, "system", NewStringType::kNormal) | 710 os_templ->Set(String::NewFromUtf8(isolate, "system"), |
| 769 .ToLocalChecked(), | |
| 770 FunctionTemplate::New(isolate, System)); | 711 FunctionTemplate::New(isolate, System)); |
| 771 os_templ->Set(String::NewFromUtf8(isolate, "chdir", NewStringType::kNormal) | 712 os_templ->Set(String::NewFromUtf8(isolate, "chdir"), |
| 772 .ToLocalChecked(), | |
| 773 FunctionTemplate::New(isolate, ChangeDirectory)); | 713 FunctionTemplate::New(isolate, ChangeDirectory)); |
| 774 os_templ->Set(String::NewFromUtf8(isolate, "setenv", NewStringType::kNormal) | 714 os_templ->Set(String::NewFromUtf8(isolate, "setenv"), |
| 775 .ToLocalChecked(), | |
| 776 FunctionTemplate::New(isolate, SetEnvironment)); | 715 FunctionTemplate::New(isolate, SetEnvironment)); |
| 777 os_templ->Set(String::NewFromUtf8(isolate, "unsetenv", NewStringType::kNormal) | 716 os_templ->Set(String::NewFromUtf8(isolate, "unsetenv"), |
| 778 .ToLocalChecked(), | |
| 779 FunctionTemplate::New(isolate, UnsetEnvironment)); | 717 FunctionTemplate::New(isolate, UnsetEnvironment)); |
| 780 os_templ->Set(String::NewFromUtf8(isolate, "umask", NewStringType::kNormal) | 718 os_templ->Set(String::NewFromUtf8(isolate, "umask"), |
| 781 .ToLocalChecked(), | |
| 782 FunctionTemplate::New(isolate, SetUMask)); | 719 FunctionTemplate::New(isolate, SetUMask)); |
| 783 os_templ->Set(String::NewFromUtf8(isolate, "mkdirp", NewStringType::kNormal) | 720 os_templ->Set(String::NewFromUtf8(isolate, "mkdirp"), |
| 784 .ToLocalChecked(), | |
| 785 FunctionTemplate::New(isolate, MakeDirectory)); | 721 FunctionTemplate::New(isolate, MakeDirectory)); |
| 786 os_templ->Set(String::NewFromUtf8(isolate, "rmdir", NewStringType::kNormal) | 722 os_templ->Set(String::NewFromUtf8(isolate, "rmdir"), |
| 787 .ToLocalChecked(), | |
| 788 FunctionTemplate::New(isolate, RemoveDirectory)); | 723 FunctionTemplate::New(isolate, RemoveDirectory)); |
| 789 } | 724 } |
| 790 | 725 |
| 791 } // namespace v8 | 726 } // namespace v8 |
| OLD | NEW |