/* * Copyright (C) 2016 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <string> #include <android-base/file.h> #include <android-base/strings.h> #include "bugreportz.h" static constexpr char BEGIN_PREFIX[] = "BEGIN:"; static constexpr char PROGRESS_PREFIX[] = "PROGRESS:"; static void write_line(const std::string& line, bool show_progress) { if (line.empty()) return; // When not invoked with the -p option, it must skip BEGIN and PROGRESS lines otherwise it // will break adb (which is expecting either OK or FAIL). if (!show_progress && (android::base::StartsWith(line, PROGRESS_PREFIX) || android::base::StartsWith(line, BEGIN_PREFIX))) return; android::base::WriteStringToFd(line, STDOUT_FILENO); } int bugreportz(int s, bool show_progress) { std::string line; while (1) { char buffer[65536]; ssize_t bytes_read = TEMP_FAILURE_RETRY(read(s, buffer, sizeof(buffer))); if (bytes_read == 0) { break; } else if (bytes_read == -1) { // EAGAIN really means time out, so change the errno. if (errno == EAGAIN) { errno = ETIMEDOUT; } printf("FAIL:Bugreport read terminated abnormally (%s)\n", strerror(errno)); break; } // Writes line by line. for (int i = 0; i < bytes_read; i++) { char c = buffer[i]; line.append(1, c); if (c == '\n') { write_line(line, show_progress); line.clear(); } } } // Process final line, in case it didn't finish with newline write_line(line, show_progress); if (close(s) == -1) { fprintf(stderr, "WARNING: error closing socket: %s\n", strerror(errno)); } return EXIT_SUCCESS; }