cmds/dumpstate/dumpstate.c - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2008 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 <fcntl.h>
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/resource.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <sys/wait.h>
 #include <unistd.h>

 #include <cutils/properties.h>

 #include "private/android_filesystem_config.h"

 #define LOG_TAG "dumpstate"
 #include <utils/Log.h>

 #include "dumpstate.h"

 /* read before root is shed */
 static char cmdline_buf[16384] = "(unknown)";
 static const char *dump_traces_path = NULL;

 static char screenshot_path[PATH_MAX] = "";

 /* dumps the current system state to stdout */
 static void dumpstate() {
     time_t now = time(NULL);
     char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX];
     char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX];
     char network[PROPERTY_VALUE_MAX], date[80];

     property_get("ro.build.display.id", build, "(unknown)");
     property_get("ro.build.fingerprint", fingerprint, "(unknown)");
     property_get("ro.baseband", radio, "(unknown)");
     property_get("ro.bootloader", bootloader, "(unknown)");
     property_get("gsm.operator.alpha", network, "(unknown)");
     strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now));

     printf("========================================================\n");
     printf("== dumpstate: %s\n", date);
     printf("========================================================\n");

     printf("\n");
     printf("Build: %s\n", build);
     printf("Bootloader: %s\n", bootloader);
     printf("Radio: %s\n", radio);
     printf("Network: %s\n", network);

     printf("Kernel: ");
     dump_file(NULL, "/proc/version");
     printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
     printf("\n");

     dump_file("MEMORY INFO", "/proc/meminfo");
     run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL);
     run_command("PROCRANK", 20, "procrank", NULL);
     dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat");
     dump_file("VMALLOC INFO", "/proc/vmallocinfo");
     dump_file("SLAB INFO", "/proc/slabinfo");
     dump_file("ZONEINFO", "/proc/zoneinfo");

     if (screenshot_path[0]) {
         LOGI("taking screenshot\n");
         run_command(NULL, 5, "su", "root", "screenshot", screenshot_path, NULL);
         LOGI("wrote screenshot: %s\n", screenshot_path);
     }

     run_command("SYSTEM LOG", 20, "logcat", "-v", "threadtime", "-d", "*:v", NULL);

     /* show the traces we collected in main(), if that was done */
     if (dump_traces_path != NULL) {
         dump_file("VM TRACES JUST NOW", dump_traces_path);
     }

     /* only show ANR traces if they're less than 15 minutes old */
     struct stat st;
     char anr_traces_path[PATH_MAX];
     property_get("dalvik.vm.stack-trace-file", anr_traces_path, "");
     if (!anr_traces_path[0]) {
         printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n");
     } else if (stat(anr_traces_path, &st)) {
         printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
     } else {
         dump_file("VM TRACES AT LAST ANR", anr_traces_path);
     }

     // dump_file("EVENT LOG TAGS", "/etc/event-log-tags");
     run_command("EVENT LOG", 20, "logcat", "-b", "events", "-v", "threadtime", "-d", "*:v", NULL);
     run_command("RADIO LOG", 20, "logcat", "-b", "radio", "-v", "threadtime", "-d", "*:v", NULL);

     run_command("NETWORK INTERFACES", 10, "su", "root", "netcfg", NULL);
     dump_file("NETWORK ROUTES", "/proc/net/route");
     dump_file("ARP CACHE", "/proc/net/arp");

     run_command("WIFI NETWORKS", 20,
             "su", "root", "wpa_cli", "list_networks", NULL);

 #ifdef FWDUMP_bcm4329
     run_command("DUMP WIFI STATUS", 20,
             "su", "root", "dhdutil", "-i", "wlan0", "dump", NULL);
     run_command("DUMP WIFI INTERNAL COUNTERS", 20,
             "su", "root", "wlutil", "counters", NULL);
 #endif

     print_properties();

     run_command("KERNEL LOG", 20, "dmesg", NULL);

     dump_file("KERNEL WAKELOCKS", "/proc/wakelocks");
     dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");

     run_command("VOLD DUMP", 10, "vdc", "dump", NULL);
     run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL);

     run_command("PROCESSES", 10, "ps", "-P", NULL);
     run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL);
     run_command("LIBRANK", 10, "librank", NULL);

     dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log");
     dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log");
     dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions");
     dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats");
     dump_file("BINDER STATE", "/sys/kernel/debug/binder/state");

     run_command("FILESYSTEMS & FREE SPACE", 10, "su", "root", "df", NULL);

     dump_file("PACKAGE SETTINGS", "/data/system/packages.xml");
     dump_file("PACKAGE UID ERRORS", "/data/system/uiderrors.txt");

     dump_file("LAST KMSG", "/proc/last_kmsg");
     run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL);
     dump_file("LAST PANIC CONSOLE", "/data/dontpanic/apanic_console");
     dump_file("LAST PANIC THREADS", "/data/dontpanic/apanic_threads");

     for_each_pid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS");

     printf("------ BACKLIGHTS ------\n");
     printf("LCD brightness=");
     dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness");
     printf("Button brightness=");
     dump_file(NULL, "/sys/class/leds/button-backlight/brightness");
     printf("Keyboard brightness=");
     dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness");
     printf("ALS mode=");
     dump_file(NULL, "/sys/class/leds/lcd-backlight/als");
     printf("LCD driver registers:\n");
     dump_file(NULL, "/sys/class/leds/lcd-backlight/registers");
     printf("\n");

     printf("========================================================\n");
     printf("== Android Framework Services\n");
     printf("========================================================\n");

     /* the full dumpsys is starting to take a long time, so we need
        to increase its timeout.  we really need to do the timeouts in
        dumpsys itself... */
     run_command("DUMPSYS", 60, "dumpsys", NULL);

     printf("========================================================\n");
     printf("== Application Services\n");
     printf("========================================================\n");

     /* Instead of a 60s timeout, we should give each service a 5 second timeout */
     run_command("APP SERVICES", 60, "dumpsys", "activity", "service", NULL);

 }

 static void usage() {
     fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s]\n"
             "  -o: write to file (instead of stdout)\n"
             "  -d: append date to filename (requires -o)\n"
             "  -z: gzip output (requires -o)\n"
             "  -p: capture screenshot to filename.png (requires -o)\n"
             "  -s: write output to control socket (for init)\n"
             "  -b: play sound file instead of vibrate, at beginning of job\n"
             "  -e: play sound file instead of vibrate, at end of job\n"
 		);
 }

 int main(int argc, char *argv[]) {
     int do_add_date = 0;
     int do_compress = 0;
     char* use_outfile = 0;
     char* begin_sound = 0;
     char* end_sound = 0;
     int use_socket = 0;
     int do_fb = 0;

     LOGI("begin\n");

     /* set as high priority, and protect from OOM killer */
     setpriority(PRIO_PROCESS, 0, -20);
     FILE *oom_adj = fopen("/proc/self/oom_adj", "w");
     if (oom_adj) {
         fputs("-17", oom_adj);
         fclose(oom_adj);
     }

     /* very first thing, collect VM traces from Dalvik (needs root) */
     dump_traces_path = dump_vm_traces();

     int c;
     while ((c = getopt(argc, argv, "b:de:ho:svzp")) != -1) {
         switch (c) {
             case 'b': begin_sound = optarg;  break;
             case 'd': do_add_date = 1;       break;
             case 'e': end_sound = optarg;    break;
             case 'o': use_outfile = optarg;  break;
             case 's': use_socket = 1;        break;
             case 'v': break;  // compatibility no-op
             case 'z': do_compress = 6;       break;
             case 'p': do_fb = 1;             break;
             case '?': printf("\n");
             case 'h':
                 usage();
                 exit(1);
         }
     }

     /* open the vibrator before dropping root */
     FILE *vibrator = fopen("/sys/class/timed_output/vibrator/enable", "w");
     if (vibrator) fcntl(fileno(vibrator), F_SETFD, FD_CLOEXEC);

     /* read /proc/cmdline before dropping root */
     FILE *cmdline = fopen("/proc/cmdline", "r");
     if (cmdline != NULL) {
         fgets(cmdline_buf, sizeof(cmdline_buf), cmdline);
         fclose(cmdline);
     }

     if (getuid() == 0) {
         /* switch to non-root user and group */
         gid_t groups[] = { AID_LOG, AID_SDCARD_RW, AID_MOUNT };
         if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
             LOGE("Unable to setgroups, aborting: %s\n", strerror(errno));
             return -1;
         }
         if (setgid(AID_SHELL) != 0) {
             LOGE("Unable to setgid, aborting: %s\n", strerror(errno));
             return -1;
         }
         if (setuid(AID_SHELL) != 0) {
             LOGE("Unable to setuid, aborting: %s\n", strerror(errno));
             return -1;
         }
     }

     char path[PATH_MAX], tmp_path[PATH_MAX];
     pid_t gzip_pid = -1;

     if (use_socket) {
         redirect_to_socket(stdout, "dumpstate");
     } else if (use_outfile) {
         strlcpy(path, use_outfile, sizeof(path));
         if (do_add_date) {
             char date[80];
             time_t now = time(NULL);
             strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now));
             strlcat(path, date, sizeof(path));
         }
         if (do_fb) {
             strlcpy(screenshot_path, path, sizeof(screenshot_path));
             strlcat(screenshot_path, ".png", sizeof(screenshot_path));
         }
         strlcat(path, ".txt", sizeof(path));
         if (do_compress) strlcat(path, ".gz", sizeof(path));
         strlcpy(tmp_path, path, sizeof(tmp_path));
         strlcat(tmp_path, ".tmp", sizeof(tmp_path));
         gzip_pid = redirect_to_file(stdout, tmp_path, do_compress);
     }

     if (begin_sound) {
         play_sound(begin_sound);
     } else if (vibrator) {
         fputs("150", vibrator);
         fflush(vibrator);
     }

     dumpstate();

     if (end_sound) {
         play_sound(end_sound);
     } else if (vibrator) {
         int i;
         for (i = 0; i < 3; i++) {
             fputs("75\n", vibrator);
             fflush(vibrator);
             usleep((75 + 50) * 1000);
         }
         fclose(vibrator);
     }

     /* wait for gzip to finish, otherwise it might get killed when we exit */
     if (gzip_pid > 0) {
         fclose(stdout);
         waitpid(gzip_pid, NULL, 0);
     }

     /* rename the (now complete) .tmp file to its final location */
     if (use_outfile && rename(tmp_path, path)) {
         fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno));
     }

     LOGI("done\n");

     return 0;
 }
	/*
	* Copyright (C) 2008 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 <fcntl.h>
	#include <limits.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <sys/resource.h>
	#include <sys/stat.h>
	#include <sys/time.h>
	#include <sys/wait.h>
	#include <unistd.h>

	#include <cutils/properties.h>

	#include "private/android_filesystem_config.h"

	#define LOG_TAG "dumpstate"
	#include <utils/Log.h>

	#include "dumpstate.h"

	/* read before root is shed */
	static char cmdline_buf[16384] = "(unknown)";
	static const char *dump_traces_path = NULL;

	static char screenshot_path[PATH_MAX] = "";

	/* dumps the current system state to stdout */
	static void dumpstate() {
	time_t now = time(NULL);
	char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX];
	char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX];
	char network[PROPERTY_VALUE_MAX], date[80];

	property_get("ro.build.display.id", build, "(unknown)");
	property_get("ro.build.fingerprint", fingerprint, "(unknown)");
	property_get("ro.baseband", radio, "(unknown)");
	property_get("ro.bootloader", bootloader, "(unknown)");
	property_get("gsm.operator.alpha", network, "(unknown)");
	strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now));

	printf("========================================================\n");
	printf("== dumpstate: %s\n", date);
	printf("========================================================\n");

	printf("\n");
	printf("Build: %s\n", build);
	printf("Bootloader: %s\n", bootloader);
	printf("Radio: %s\n", radio);
	printf("Network: %s\n", network);

	printf("Kernel: ");
	dump_file(NULL, "/proc/version");
	printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
	printf("\n");

	dump_file("MEMORY INFO", "/proc/meminfo");
	run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL);
	run_command("PROCRANK", 20, "procrank", NULL);
	dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat");
	dump_file("VMALLOC INFO", "/proc/vmallocinfo");
	dump_file("SLAB INFO", "/proc/slabinfo");
	dump_file("ZONEINFO", "/proc/zoneinfo");

	if (screenshot_path[0]) {
	LOGI("taking screenshot\n");
	run_command(NULL, 5, "su", "root", "screenshot", screenshot_path, NULL);
	LOGI("wrote screenshot: %s\n", screenshot_path);
	}

	run_command("SYSTEM LOG", 20, "logcat", "-v", "threadtime", "-d", "*:v", NULL);

	/* show the traces we collected in main(), if that was done */
	if (dump_traces_path != NULL) {
	dump_file("VM TRACES JUST NOW", dump_traces_path);
	}

	/* only show ANR traces if they're less than 15 minutes old */
	struct stat st;
	char anr_traces_path[PATH_MAX];
	property_get("dalvik.vm.stack-trace-file", anr_traces_path, "");
	if (!anr_traces_path[0]) {
	printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n");
	} else if (stat(anr_traces_path, &st)) {
	printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
	} else {
	dump_file("VM TRACES AT LAST ANR", anr_traces_path);
	}

	// dump_file("EVENT LOG TAGS", "/etc/event-log-tags");
	run_command("EVENT LOG", 20, "logcat", "-b", "events", "-v", "threadtime", "-d", "*:v", NULL);
	run_command("RADIO LOG", 20, "logcat", "-b", "radio", "-v", "threadtime", "-d", "*:v", NULL);

	run_command("NETWORK INTERFACES", 10, "su", "root", "netcfg", NULL);
	dump_file("NETWORK ROUTES", "/proc/net/route");
	dump_file("ARP CACHE", "/proc/net/arp");

	run_command("WIFI NETWORKS", 20,
	"su", "root", "wpa_cli", "list_networks", NULL);

	#ifdef FWDUMP_bcm4329
	run_command("DUMP WIFI STATUS", 20,
	"su", "root", "dhdutil", "-i", "wlan0", "dump", NULL);
	run_command("DUMP WIFI INTERNAL COUNTERS", 20,
	"su", "root", "wlutil", "counters", NULL);
	#endif

	print_properties();

	run_command("KERNEL LOG", 20, "dmesg", NULL);

	dump_file("KERNEL WAKELOCKS", "/proc/wakelocks");
	dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");

	run_command("VOLD DUMP", 10, "vdc", "dump", NULL);
	run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL);

	run_command("PROCESSES", 10, "ps", "-P", NULL);
	run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL);
	run_command("LIBRANK", 10, "librank", NULL);

	dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log");
	dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log");
	dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions");
	dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats");
	dump_file("BINDER STATE", "/sys/kernel/debug/binder/state");

	run_command("FILESYSTEMS & FREE SPACE", 10, "su", "root", "df", NULL);

	dump_file("PACKAGE SETTINGS", "/data/system/packages.xml");
	dump_file("PACKAGE UID ERRORS", "/data/system/uiderrors.txt");

	dump_file("LAST KMSG", "/proc/last_kmsg");
	run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL);
	dump_file("LAST PANIC CONSOLE", "/data/dontpanic/apanic_console");
	dump_file("LAST PANIC THREADS", "/data/dontpanic/apanic_threads");

	for_each_pid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS");

	printf("------ BACKLIGHTS ------\n");
	printf("LCD brightness=");
	dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness");
	printf("Button brightness=");
	dump_file(NULL, "/sys/class/leds/button-backlight/brightness");
	printf("Keyboard brightness=");
	dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness");
	printf("ALS mode=");
	dump_file(NULL, "/sys/class/leds/lcd-backlight/als");
	printf("LCD driver registers:\n");
	dump_file(NULL, "/sys/class/leds/lcd-backlight/registers");
	printf("\n");

	printf("========================================================\n");
	printf("== Android Framework Services\n");
	printf("========================================================\n");

	/* the full dumpsys is starting to take a long time, so we need
	to increase its timeout. we really need to do the timeouts in
	dumpsys itself... */
	run_command("DUMPSYS", 60, "dumpsys", NULL);

	printf("========================================================\n");
	printf("== Application Services\n");
	printf("========================================================\n");

	/* Instead of a 60s timeout, we should give each service a 5 second timeout */
	run_command("APP SERVICES", 60, "dumpsys", "activity", "service", NULL);

	}

	static void usage() {
	fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s]\n"
	" -o: write to file (instead of stdout)\n"
	" -d: append date to filename (requires -o)\n"
	" -z: gzip output (requires -o)\n"
	" -p: capture screenshot to filename.png (requires -o)\n"
	" -s: write output to control socket (for init)\n"
	" -b: play sound file instead of vibrate, at beginning of job\n"
	" -e: play sound file instead of vibrate, at end of job\n"
	);
	}

	int main(int argc, char *argv[]) {
	int do_add_date = 0;
	int do_compress = 0;
	char* use_outfile = 0;
	char* begin_sound = 0;
	char* end_sound = 0;
	int use_socket = 0;
	int do_fb = 0;

	LOGI("begin\n");

	/* set as high priority, and protect from OOM killer */
	setpriority(PRIO_PROCESS, 0, -20);
	FILE *oom_adj = fopen("/proc/self/oom_adj", "w");
	if (oom_adj) {
	fputs("-17", oom_adj);
	fclose(oom_adj);
	}

	/* very first thing, collect VM traces from Dalvik (needs root) */
	dump_traces_path = dump_vm_traces();

	int c;
	while ((c = getopt(argc, argv, "b:de:ho:svzp")) != -1) {
	switch (c) {
	case 'b': begin_sound = optarg; break;
	case 'd': do_add_date = 1; break;
	case 'e': end_sound = optarg; break;
	case 'o': use_outfile = optarg; break;
	case 's': use_socket = 1; break;
	case 'v': break; // compatibility no-op
	case 'z': do_compress = 6; break;
	case 'p': do_fb = 1; break;
	case '?': printf("\n");
	case 'h':
	usage();
	exit(1);
	}
	}

	/* open the vibrator before dropping root */
	FILE *vibrator = fopen("/sys/class/timed_output/vibrator/enable", "w");
	if (vibrator) fcntl(fileno(vibrator), F_SETFD, FD_CLOEXEC);

	/* read /proc/cmdline before dropping root */
	FILE *cmdline = fopen("/proc/cmdline", "r");
	if (cmdline != NULL) {
	fgets(cmdline_buf, sizeof(cmdline_buf), cmdline);
	fclose(cmdline);
	}

	if (getuid() == 0) {
	/* switch to non-root user and group */
	gid_t groups[] = { AID_LOG, AID_SDCARD_RW, AID_MOUNT };
	if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
	LOGE("Unable to setgroups, aborting: %s\n", strerror(errno));
	return -1;
	}
	if (setgid(AID_SHELL) != 0) {
	LOGE("Unable to setgid, aborting: %s\n", strerror(errno));
	return -1;
	}
	if (setuid(AID_SHELL) != 0) {
	LOGE("Unable to setuid, aborting: %s\n", strerror(errno));
	return -1;
	}
	}

	char path[PATH_MAX], tmp_path[PATH_MAX];
	pid_t gzip_pid = -1;

	if (use_socket) {
	redirect_to_socket(stdout, "dumpstate");
	} else if (use_outfile) {
	strlcpy(path, use_outfile, sizeof(path));
	if (do_add_date) {
	char date[80];
	time_t now = time(NULL);
	strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now));
	strlcat(path, date, sizeof(path));
	}
	if (do_fb) {
	strlcpy(screenshot_path, path, sizeof(screenshot_path));
	strlcat(screenshot_path, ".png", sizeof(screenshot_path));
	}
	strlcat(path, ".txt", sizeof(path));
	if (do_compress) strlcat(path, ".gz", sizeof(path));
	strlcpy(tmp_path, path, sizeof(tmp_path));
	strlcat(tmp_path, ".tmp", sizeof(tmp_path));
	gzip_pid = redirect_to_file(stdout, tmp_path, do_compress);
	}

	if (begin_sound) {
	play_sound(begin_sound);
	} else if (vibrator) {
	fputs("150", vibrator);
	fflush(vibrator);
	}

	dumpstate();

	if (end_sound) {
	play_sound(end_sound);
	} else if (vibrator) {
	int i;
	for (i = 0; i < 3; i++) {
	fputs("75\n", vibrator);
	fflush(vibrator);
	usleep((75 + 50) * 1000);
	}
	fclose(vibrator);
	}

	/* wait for gzip to finish, otherwise it might get killed when we exit */
	if (gzip_pid > 0) {
	fclose(stdout);
	waitpid(gzip_pid, NULL, 0);
	}

	/* rename the (now complete) .tmp file to its final location */
	if (use_outfile && rename(tmp_path, path)) {
	fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno));
	}

	LOGI("done\n");

	return 0;
	}