diff options
Diffstat (limited to 'cmds/bugreport/bugreport.cpp')
-rw-r--r-- | cmds/bugreport/bugreport.cpp | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/cmds/bugreport/bugreport.cpp b/cmds/bugreport/bugreport.cpp new file mode 100644 index 0000000..b606406 --- /dev/null +++ b/cmds/bugreport/bugreport.cpp @@ -0,0 +1,91 @@ +/* + * Copyright (C) 2009 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 <sys/socket.h> +#include <sys/types.h> +#include <unistd.h> + +#include <cutils/properties.h> +#include <cutils/sockets.h> + +// This program will trigger the dumpstate service to start a call to +// dumpstate, then connect to the dumpstate local client to read the +// output. All of the dumpstate output is written to stdout, including +// any errors encountered while reading/writing the output. +int main() { + // Start the dumpstate service. + property_set("ctl.start", "dumpstate"); + + // Socket will not be available until service starts. + int s; + for (int i = 0; i < 20; i++) { + s = socket_local_client("dumpstate", ANDROID_SOCKET_NAMESPACE_RESERVED, + SOCK_STREAM); + if (s >= 0) + break; + // Try again in 1 second. + sleep(1); + } + + if (s == -1) { + printf("Failed to connect to dumpstate service: %s\n", strerror(errno)); + return 1; + } + + // Set a timeout so that if nothing is read in 3 minutes, we'll stop + // reading and quit. No timeout in dumpstate is longer than 60 seconds, + // so this gives lots of leeway in case of unforeseen time outs. + struct timeval tv; + tv.tv_sec = 3 * 60; + tv.tv_usec = 0; + if (setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) == -1) { + printf("WARNING: Cannot set socket timeout: %s\n", strerror(errno)); + } + + 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("\nBugreport read terminated abnormally (%s).\n", strerror(errno)); + break; + } + + ssize_t bytes_to_send = bytes_read; + ssize_t bytes_written; + do { + bytes_written = TEMP_FAILURE_RETRY(write(STDOUT_FILENO, + buffer + bytes_read - bytes_to_send, + bytes_to_send)); + if (bytes_written == -1) { + printf("Failed to write data to stdout: read %zd, trying to send %zd (%s)\n", + bytes_read, bytes_to_send, strerror(errno)); + return 1; + } + bytes_to_send -= bytes_written; + } while (bytes_written != 0 && bytes_to_send > 0); + } + + TEMP_FAILURE_RETRY(close(s)); + return 0; +} |