Merge "Refactor of the bugreport code."

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

LOCAL_SRC_FILES:= bugreport.c

LOCAL_SRC_FILES:= bugreport.cpp

LOCAL_MODULE:= bugreport

LOCAL_CFLAGS := -Wall

LOCAL_SHARED_LIBRARIES := libcutils

include $(BUILD_EXECUTABLE)

/*

 * 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 <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <cutils/properties.h>

#include <cutils/sockets.h>

int main(int argc, char *argv[]) {

    char buffer[65536];

    int i, s;

    /* start the dumpstate service */

    property_set("ctl.start", "dumpstate");

    /* socket will not be available until service starts */

    for (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 < 0) {

        fprintf(stderr, "Failed to connect to dumpstate service\n");

        exit(1);

    }

    while (1) {

        int length = read(s, buffer, sizeof(buffer));

        if (length <= 0)

            break;

        fwrite(buffer, 1, length, stdout);

    }

    close(s);

    return 0;

}

/*

 * 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;

}