| // Copyright 2006-2015 The Android Open Source Project | |
| #include <arpa/inet.h> | |
| #include <assert.h> | |
| #include <ctype.h> | |
| #include <dirent.h> | |
| #include <errno.h> | |
| #include <fcntl.h> | |
| #include <getopt.h> | |
| #include <math.h> | |
| #include <sched.h> | |
| #include <signal.h> | |
| #include <stdarg.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <string.h> | |
| #include <sys/cdefs.h> | |
| #include <sys/resource.h> | |
| #include <sys/socket.h> | |
| #include <sys/stat.h> | |
| #include <sys/types.h> | |
| #include <time.h> | |
| #include <unistd.h> | |
| #include <memory> | |
| #include <string> | |
| #include <android-base/file.h> | |
| #include <android-base/strings.h> | |
| #include <cutils/sched_policy.h> | |
| #include <cutils/sockets.h> | |
| #include <log/event_tag_map.h> | |
| #include <log/log.h> | |
| #include <log/log_read.h> | |
| #include <log/logd.h> | |
| #include <log/logger.h> | |
| #include <log/logprint.h> | |
| #include <utils/threads.h> | |
| #include <pcrecpp.h> | |
| #define DEFAULT_MAX_ROTATED_LOGS 4 | |
| static AndroidLogFormat * g_logformat; | |
| /* logd prefixes records with a length field */ | |
| #define RECORD_LENGTH_FIELD_SIZE_BYTES sizeof(uint32_t) | |
| struct log_device_t { | |
| const char* device; | |
| bool binary; | |
| struct logger *logger; | |
| struct logger_list *logger_list; | |
| bool printed; | |
| log_device_t* next; | |
| log_device_t(const char* d, bool b) { | |
| device = d; | |
| binary = b; | |
| next = NULL; | |
| printed = false; | |
| logger = NULL; | |
| logger_list = NULL; | |
| } | |
| }; | |
| namespace android { | |
| /* Global Variables */ | |
| static const char * g_outputFileName; | |
| // 0 means "no log rotation" | |
| static size_t g_logRotateSizeKBytes; | |
| // 0 means "unbounded" | |
| static size_t g_maxRotatedLogs = DEFAULT_MAX_ROTATED_LOGS; | |
| static int g_outFD = -1; | |
| static size_t g_outByteCount; | |
| static int g_printBinary; | |
| static int g_devCount; // >1 means multiple | |
| static pcrecpp::RE* g_regex; | |
| // 0 means "infinite" | |
| static size_t g_maxCount; | |
| static size_t g_printCount; | |
| static bool g_printItAnyways; | |
| // if showHelp is set, newline required in fmt statement to transition to usage | |
| __noreturn static void logcat_panic(bool showHelp, const char *fmt, ...) __printflike(2,3); | |
| static int openLogFile (const char *pathname) | |
| { | |
| return open(pathname, O_WRONLY | O_APPEND | O_CREAT, S_IRUSR | S_IWUSR); | |
| } | |
| static void rotateLogs() | |
| { | |
| int err; | |
| // Can't rotate logs if we're not outputting to a file | |
| if (g_outputFileName == NULL) { | |
| return; | |
| } | |
| close(g_outFD); | |
| // Compute the maximum number of digits needed to count up to g_maxRotatedLogs in decimal. | |
| // eg: g_maxRotatedLogs == 30 -> log10(30) == 1.477 -> maxRotationCountDigits == 2 | |
| int maxRotationCountDigits = | |
| (g_maxRotatedLogs > 0) ? (int) (floor(log10(g_maxRotatedLogs) + 1)) : 0; | |
| for (int i = g_maxRotatedLogs ; i > 0 ; i--) { | |
| char *file0, *file1; | |
| asprintf(&file1, "%s.%.*d", g_outputFileName, maxRotationCountDigits, i); | |
| if (i - 1 == 0) { | |
| asprintf(&file0, "%s", g_outputFileName); | |
| } else { | |
| asprintf(&file0, "%s.%.*d", g_outputFileName, maxRotationCountDigits, i - 1); | |
| } | |
| if (!file0 || !file1) { | |
| perror("while rotating log files"); | |
| break; | |
| } | |
| err = rename(file0, file1); | |
| if (err < 0 && errno != ENOENT) { | |
| perror("while rotating log files"); | |
| } | |
| free(file1); | |
| free(file0); | |
| } | |
| g_outFD = openLogFile(g_outputFileName); | |
| if (g_outFD < 0) { | |
| logcat_panic(false, "couldn't open output file"); | |
| } | |
| g_outByteCount = 0; | |
| } | |
| void printBinary(struct log_msg *buf) | |
| { | |
| size_t size = buf->len(); | |
| TEMP_FAILURE_RETRY(write(g_outFD, buf, size)); | |
| } | |
| static bool regexOk(const AndroidLogEntry& entry) | |
| { | |
| if (!g_regex) { | |
| return true; | |
| } | |
| std::string messageString(entry.message, entry.messageLen); | |
| return g_regex->PartialMatch(messageString); | |
| } | |
| static void processBuffer(log_device_t* dev, struct log_msg *buf) | |
| { | |
| int bytesWritten = 0; | |
| int err; | |
| AndroidLogEntry entry; | |
| char binaryMsgBuf[1024]; | |
| if (dev->binary) { | |
| static bool hasOpenedEventTagMap = false; | |
| static EventTagMap *eventTagMap = NULL; | |
| if (!eventTagMap && !hasOpenedEventTagMap) { | |
| eventTagMap = android_openEventTagMap(EVENT_TAG_MAP_FILE); | |
| hasOpenedEventTagMap = true; | |
| } | |
| err = android_log_processBinaryLogBuffer(&buf->entry_v1, &entry, | |
| eventTagMap, | |
| binaryMsgBuf, | |
| sizeof(binaryMsgBuf)); | |
| //printf(">>> pri=%d len=%d msg='%s'\n", | |
| // entry.priority, entry.messageLen, entry.message); | |
| } else { | |
| err = android_log_processLogBuffer(&buf->entry_v1, &entry); | |
| } | |
| if (err < 0) { | |
| goto error; | |
| } | |
| if (android_log_shouldPrintLine(g_logformat, entry.tag, entry.priority)) { | |
| bool match = regexOk(entry); | |
| g_printCount += match; | |
| if (match || g_printItAnyways) { | |
| bytesWritten = android_log_printLogLine(g_logformat, g_outFD, &entry); | |
| if (bytesWritten < 0) { | |
| logcat_panic(false, "output error"); | |
| } | |
| } | |
| } | |
| g_outByteCount += bytesWritten; | |
| if (g_logRotateSizeKBytes > 0 | |
| && (g_outByteCount / 1024) >= g_logRotateSizeKBytes | |
| ) { | |
| rotateLogs(); | |
| } | |
| error: | |
| //fprintf (stderr, "Error processing record\n"); | |
| return; | |
| } | |
| static void maybePrintStart(log_device_t* dev, bool printDividers) { | |
| if (!dev->printed || printDividers) { | |
| if (g_devCount > 1 && !g_printBinary) { | |
| char buf[1024]; | |
| snprintf(buf, sizeof(buf), "--------- %s %s\n", | |
| dev->printed ? "switch to" : "beginning of", | |
| dev->device); | |
| if (write(g_outFD, buf, strlen(buf)) < 0) { | |
| logcat_panic(false, "output error"); | |
| } | |
| } | |
| dev->printed = true; | |
| } | |
| } | |
| static void setupOutput() | |
| { | |
| if (g_outputFileName == NULL) { | |
| g_outFD = STDOUT_FILENO; | |
| } else { | |
| if (set_sched_policy(0, SP_BACKGROUND) < 0) { | |
| fprintf(stderr, "failed to set background scheduling policy\n"); | |
| } | |
| struct sched_param param; | |
| memset(¶m, 0, sizeof(param)); | |
| if (sched_setscheduler((pid_t) 0, SCHED_BATCH, ¶m) < 0) { | |
| fprintf(stderr, "failed to set to batch scheduler\n"); | |
| } | |
| if (setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_BACKGROUND) < 0) { | |
| fprintf(stderr, "failed set to priority\n"); | |
| } | |
| g_outFD = openLogFile (g_outputFileName); | |
| if (g_outFD < 0) { | |
| logcat_panic(false, "couldn't open output file"); | |
| } | |
| struct stat statbuf; | |
| if (fstat(g_outFD, &statbuf) == -1) { | |
| close(g_outFD); | |
| logcat_panic(false, "couldn't get output file stat\n"); | |
| } | |
| if ((size_t) statbuf.st_size > SIZE_MAX || statbuf.st_size < 0) { | |
| close(g_outFD); | |
| logcat_panic(false, "invalid output file stat\n"); | |
| } | |
| g_outByteCount = statbuf.st_size; | |
| } | |
| } | |
| static void show_help(const char *cmd) | |
| { | |
| fprintf(stderr,"Usage: %s [options] [filterspecs]\n", cmd); | |
| fprintf(stderr, "options include:\n" | |
| " -s Set default filter to silent.\n" | |
| " Like specifying filterspec '*:S'\n" | |
| " -f <filename> Log to file. Default is stdout\n" | |
| " --file=<filename>\n" | |
| " -r <kbytes> Rotate log every kbytes. Requires -f\n" | |
| " --rotate-kbytes=<kbytes>\n" | |
| " -n <count> Sets max number of rotated logs to <count>, default 4\n" | |
| " --rotate-count=<count>\n" | |
| " -v <format> Sets the log print format, where <format> is:\n" | |
| " --format=<format>\n" | |
| " brief color epoch long monotonic printable process raw\n" | |
| " tag thread threadtime time uid usec UTC year zone\n\n" | |
| " -D print dividers between each log buffer\n" | |
| " --dividers\n" | |
| " -c clear (flush) the entire log and exit\n" | |
| " --clear\n" | |
| " -d dump the log and then exit (don't block)\n" | |
| " -e <expr> only print lines where the log message matches <expr>\n" | |
| " --regex <expr> where <expr> is a regular expression\n" | |
| " -m <count> quit after printing <count> lines. This is meant to be\n" | |
| " --max-count=<count> paired with --regex, but will work on its own.\n" | |
| " --print paired with --regex and --max-count to let content bypass\n" | |
| " regex filter but still stop at number of matches.\n" | |
| " -t <count> print only the most recent <count> lines (implies -d)\n" | |
| " -t '<time>' print most recent lines since specified time (implies -d)\n" | |
| " -T <count> print only the most recent <count> lines (does not imply -d)\n" | |
| " -T '<time>' print most recent lines since specified time (not imply -d)\n" | |
| " count is pure numerical, time is 'MM-DD hh:mm:ss.mmm...'\n" | |
| " 'YYYY-MM-DD hh:mm:ss.mmm...' or 'sssss.mmm...' format\n" | |
| " -g get the size of the log's ring buffer and exit\n" | |
| " --buffer-size\n" | |
| " -G <size> set size of log ring buffer, may suffix with K or M.\n" | |
| " --buffer-size=<size>\n" | |
| " -L dump logs from prior to last reboot\n" | |
| " --last\n" | |
| // Leave security (Device Owner only installations) and | |
| // kernel (userdebug and eng) buffers undocumented. | |
| " -b <buffer> Request alternate ring buffer, 'main', 'system', 'radio',\n" | |
| " --buffer=<buffer> 'events', 'crash', 'default' or 'all'. Multiple -b\n" | |
| " parameters are allowed and results are interleaved. The\n" | |
| " default is -b main -b system -b crash.\n" | |
| " -B output the log in binary.\n" | |
| " --binary\n" | |
| " -S output statistics.\n" | |
| " --statistics\n" | |
| " -p print prune white and ~black list. Service is specified as\n" | |
| " --prune UID, UID/PID or /PID. Weighed for quicker pruning if prefix\n" | |
| " with ~, otherwise weighed for longevity if unadorned. All\n" | |
| " other pruning activity is oldest first. Special case ~!\n" | |
| " represents an automatic quicker pruning for the noisiest\n" | |
| " UID as determined by the current statistics.\n" | |
| " -P '<list> ...' set prune white and ~black list, using same format as\n" | |
| " --prune='<list> ...' printed above. Must be quoted.\n" | |
| " --pid=<pid> Only prints logs from the given pid.\n" | |
| // Check ANDROID_LOG_WRAP_DEFAULT_TIMEOUT value | |
| " --wrap Sleep for 2 hours or when buffer about to wrap whichever\n" | |
| " comes first. Improves efficiency of polling by providing\n" | |
| " an about-to-wrap wakeup.\n"); | |
| fprintf(stderr,"\nfilterspecs are a series of \n" | |
| " <tag>[:priority]\n\n" | |
| "where <tag> is a log component tag (or * for all) and priority is:\n" | |
| " V Verbose (default for <tag>)\n" | |
| " D Debug (default for '*')\n" | |
| " I Info\n" | |
| " W Warn\n" | |
| " E Error\n" | |
| " F Fatal\n" | |
| " S Silent (suppress all output)\n" | |
| "\n'*' by itself means '*:D' and <tag> by itself means <tag>:V.\n" | |
| "If no '*' filterspec or -s on command line, all filter defaults to '*:V'.\n" | |
| "eg: '*:S <tag>' prints only <tag>, '<tag>:S' suppresses all <tag> log messages.\n" | |
| "\nIf not specified on the command line, filterspec is set from ANDROID_LOG_TAGS.\n" | |
| "\nIf not specified with -v on command line, format is set from ANDROID_PRINTF_LOG\n" | |
| "or defaults to \"threadtime\"\n\n"); | |
| } | |
| static int setLogFormat(const char * formatString) | |
| { | |
| static AndroidLogPrintFormat format; | |
| format = android_log_formatFromString(formatString); | |
| if (format == FORMAT_OFF) { | |
| // FORMAT_OFF means invalid string | |
| return -1; | |
| } | |
| return android_log_setPrintFormat(g_logformat, format); | |
| } | |
| static const char multipliers[][2] = { | |
| { "" }, | |
| { "K" }, | |
| { "M" }, | |
| { "G" } | |
| }; | |
| static unsigned long value_of_size(unsigned long value) | |
| { | |
| for (unsigned i = 0; | |
| (i < sizeof(multipliers)/sizeof(multipliers[0])) && (value >= 1024); | |
| value /= 1024, ++i) ; | |
| return value; | |
| } | |
| static const char *multiplier_of_size(unsigned long value) | |
| { | |
| unsigned i; | |
| for (i = 0; | |
| (i < sizeof(multipliers)/sizeof(multipliers[0])) && (value >= 1024); | |
| value /= 1024, ++i) ; | |
| return multipliers[i]; | |
| } | |
| /*String to unsigned int, returns -1 if it fails*/ | |
| static bool getSizeTArg(char *ptr, size_t *val, size_t min = 0, | |
| size_t max = SIZE_MAX) | |
| { | |
| if (!ptr) { | |
| return false; | |
| } | |
| char *endp; | |
| errno = 0; | |
| size_t ret = (size_t)strtoll(ptr, &endp, 0); | |
| if (endp[0] || errno) { | |
| return false; | |
| } | |
| if ((ret > max) || (ret < min)) { | |
| return false; | |
| } | |
| *val = ret; | |
| return true; | |
| } | |
| static void logcat_panic(bool showHelp, const char *fmt, ...) | |
| { | |
| va_list args; | |
| va_start(args, fmt); | |
| vfprintf(stderr, fmt, args); | |
| va_end(args); | |
| if (showHelp) { | |
| show_help(getprogname()); | |
| } | |
| exit(EXIT_FAILURE); | |
| } | |
| static char *parseTime(log_time &t, const char *cp) { | |
| char *ep = t.strptime(cp, "%m-%d %H:%M:%S.%q"); | |
| if (ep) { | |
| return ep; | |
| } | |
| ep = t.strptime(cp, "%Y-%m-%d %H:%M:%S.%q"); | |
| if (ep) { | |
| return ep; | |
| } | |
| return t.strptime(cp, "%s.%q"); | |
| } | |
| // Find last logged line in gestalt of all matching existing output files | |
| static log_time lastLogTime(char *outputFileName) { | |
| log_time retval(log_time::EPOCH); | |
| if (!outputFileName) { | |
| return retval; | |
| } | |
| std::string directory; | |
| char *file = strrchr(outputFileName, '/'); | |
| if (!file) { | |
| directory = "."; | |
| file = outputFileName; | |
| } else { | |
| *file = '\0'; | |
| directory = outputFileName; | |
| *file = '/'; | |
| ++file; | |
| } | |
| std::unique_ptr<DIR, int(*)(DIR*)> | |
| dir(opendir(directory.c_str()), closedir); | |
| if (!dir.get()) { | |
| return retval; | |
| } | |
| clockid_t clock_type = android_log_clockid(); | |
| log_time now(clock_type); | |
| bool monotonic = clock_type == CLOCK_MONOTONIC; | |
| size_t len = strlen(file); | |
| log_time modulo(0, NS_PER_SEC); | |
| struct dirent *dp; | |
| while ((dp = readdir(dir.get())) != NULL) { | |
| if ((dp->d_type != DT_REG) | |
| // If we are using realtime, check all files that match the | |
| // basename for latest time. If we are using monotonic time | |
| // then only check the main file because time cycles on | |
| // every reboot. | |
| || strncmp(dp->d_name, file, len + monotonic) | |
| || (dp->d_name[len] | |
| && ((dp->d_name[len] != '.') | |
| || !isdigit(dp->d_name[len+1])))) { | |
| continue; | |
| } | |
| std::string file_name = directory; | |
| file_name += "/"; | |
| file_name += dp->d_name; | |
| std::string file; | |
| if (!android::base::ReadFileToString(file_name, &file)) { | |
| continue; | |
| } | |
| bool found = false; | |
| for (const auto& line : android::base::Split(file, "\n")) { | |
| log_time t(log_time::EPOCH); | |
| char *ep = parseTime(t, line.c_str()); | |
| if (!ep || (*ep != ' ')) { | |
| continue; | |
| } | |
| // determine the time precision of the logs (eg: msec or usec) | |
| for (unsigned long mod = 1UL; mod < modulo.tv_nsec; mod *= 10) { | |
| if (t.tv_nsec % (mod * 10)) { | |
| modulo.tv_nsec = mod; | |
| break; | |
| } | |
| } | |
| // We filter any times later than current as we may not have the | |
| // year stored with each log entry. Also, since it is possible for | |
| // entries to be recorded out of order (very rare) we select the | |
| // maximum we find just in case. | |
| if ((t < now) && (t > retval)) { | |
| retval = t; | |
| found = true; | |
| } | |
| } | |
| // We count on the basename file to be the definitive end, so stop here. | |
| if (!dp->d_name[len] && found) { | |
| break; | |
| } | |
| } | |
| if (retval == log_time::EPOCH) { | |
| return retval; | |
| } | |
| // tail_time prints matching or higher, round up by the modulo to prevent | |
| // a replay of the last entry we have just checked. | |
| retval += modulo; | |
| return retval; | |
| } | |
| } /* namespace android */ | |
| int main(int argc, char **argv) | |
| { | |
| using namespace android; | |
| int err; | |
| int hasSetLogFormat = 0; | |
| int clearLog = 0; | |
| int getLogSize = 0; | |
| unsigned long setLogSize = 0; | |
| int getPruneList = 0; | |
| char *setPruneList = NULL; | |
| int printStatistics = 0; | |
| int mode = ANDROID_LOG_RDONLY; | |
| const char *forceFilters = NULL; | |
| log_device_t* devices = NULL; | |
| log_device_t* dev; | |
| bool printDividers = false; | |
| struct logger_list *logger_list; | |
| size_t tail_lines = 0; | |
| log_time tail_time(log_time::EPOCH); | |
| size_t pid = 0; | |
| bool got_t = false; | |
| signal(SIGPIPE, exit); | |
| g_logformat = android_log_format_new(); | |
| if (argc == 2 && 0 == strcmp(argv[1], "--help")) { | |
| show_help(argv[0]); | |
| return EXIT_SUCCESS; | |
| } | |
| for (;;) { | |
| int ret; | |
| int option_index = 0; | |
| // list of long-argument only strings for later comparison | |
| static const char pid_str[] = "pid"; | |
| static const char wrap_str[] = "wrap"; | |
| static const char print_str[] = "print"; | |
| static const struct option long_options[] = { | |
| { "binary", no_argument, NULL, 'B' }, | |
| { "buffer", required_argument, NULL, 'b' }, | |
| { "buffer-size", optional_argument, NULL, 'g' }, | |
| { "clear", no_argument, NULL, 'c' }, | |
| { "dividers", no_argument, NULL, 'D' }, | |
| { "file", required_argument, NULL, 'f' }, | |
| { "format", required_argument, NULL, 'v' }, | |
| // hidden and undocumented reserved alias for --regex | |
| { "grep", required_argument, NULL, 'e' }, | |
| // hidden and undocumented reserved alias for --max-count | |
| { "head", required_argument, NULL, 'm' }, | |
| { "last", no_argument, NULL, 'L' }, | |
| { "max-count", required_argument, NULL, 'm' }, | |
| { pid_str, required_argument, NULL, 0 }, | |
| { print_str, no_argument, NULL, 0 }, | |
| { "prune", optional_argument, NULL, 'p' }, | |
| { "regex", required_argument, NULL, 'e' }, | |
| { "rotate-count", required_argument, NULL, 'n' }, | |
| { "rotate-kbytes", required_argument, NULL, 'r' }, | |
| { "statistics", no_argument, NULL, 'S' }, | |
| // hidden and undocumented reserved alias for -t | |
| { "tail", required_argument, NULL, 't' }, | |
| // support, but ignore and do not document, the optional argument | |
| { wrap_str, optional_argument, NULL, 0 }, | |
| { NULL, 0, NULL, 0 } | |
| }; | |
| ret = getopt_long(argc, argv, ":cdDLt:T:gG:sQf:r:n:v:b:BSpP:m:e:", | |
| long_options, &option_index); | |
| if (ret < 0) { | |
| break; | |
| } | |
| switch (ret) { | |
| case 0: | |
| // One of the long options | |
| if (long_options[option_index].name == pid_str) { | |
| // ToDo: determine runtime PID_MAX? | |
| if (!getSizeTArg(optarg, &pid, 1)) { | |
| logcat_panic(true, "%s %s out of range\n", | |
| long_options[option_index].name, optarg); | |
| } | |
| break; | |
| } | |
| if (long_options[option_index].name == wrap_str) { | |
| mode |= ANDROID_LOG_WRAP | | |
| ANDROID_LOG_RDONLY | | |
| ANDROID_LOG_NONBLOCK; | |
| // ToDo: implement API that supports setting a wrap timeout | |
| size_t dummy = ANDROID_LOG_WRAP_DEFAULT_TIMEOUT; | |
| if (optarg && !getSizeTArg(optarg, &dummy, 1)) { | |
| logcat_panic(true, "%s %s out of range\n", | |
| long_options[option_index].name, optarg); | |
| } | |
| if (dummy != ANDROID_LOG_WRAP_DEFAULT_TIMEOUT) { | |
| fprintf(stderr, | |
| "WARNING: %s %u seconds, ignoring %zu\n", | |
| long_options[option_index].name, | |
| ANDROID_LOG_WRAP_DEFAULT_TIMEOUT, dummy); | |
| } | |
| break; | |
| } | |
| if (long_options[option_index].name == print_str) { | |
| g_printItAnyways = true; | |
| break; | |
| } | |
| break; | |
| case 's': | |
| // default to all silent | |
| android_log_addFilterRule(g_logformat, "*:s"); | |
| break; | |
| case 'c': | |
| clearLog = 1; | |
| mode |= ANDROID_LOG_WRONLY; | |
| break; | |
| case 'L': | |
| mode |= ANDROID_LOG_PSTORE; | |
| break; | |
| case 'd': | |
| mode |= ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK; | |
| break; | |
| case 't': | |
| got_t = true; | |
| mode |= ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK; | |
| /* FALLTHRU */ | |
| case 'T': | |
| if (strspn(optarg, "0123456789") != strlen(optarg)) { | |
| char *cp = parseTime(tail_time, optarg); | |
| if (!cp) { | |
| logcat_panic(false, "-%c \"%s\" not in time format\n", | |
| ret, optarg); | |
| } | |
| if (*cp) { | |
| char c = *cp; | |
| *cp = '\0'; | |
| fprintf(stderr, | |
| "WARNING: -%c \"%s\"\"%c%s\" time truncated\n", | |
| ret, optarg, c, cp + 1); | |
| *cp = c; | |
| } | |
| } else { | |
| if (!getSizeTArg(optarg, &tail_lines, 1)) { | |
| fprintf(stderr, | |
| "WARNING: -%c %s invalid, setting to 1\n", | |
| ret, optarg); | |
| tail_lines = 1; | |
| } | |
| } | |
| break; | |
| case 'D': | |
| printDividers = true; | |
| break; | |
| case 'e': | |
| g_regex = new pcrecpp::RE(optarg); | |
| break; | |
| case 'm': { | |
| char *end = NULL; | |
| if (!getSizeTArg(optarg, &g_maxCount)) { | |
| logcat_panic(false, "-%c \"%s\" isn't an " | |
| "integer greater than zero\n", ret, optarg); | |
| } | |
| } | |
| break; | |
| case 'g': | |
| if (!optarg) { | |
| getLogSize = 1; | |
| break; | |
| } | |
| // FALLTHRU | |
| case 'G': { | |
| char *cp; | |
| if (strtoll(optarg, &cp, 0) > 0) { | |
| setLogSize = strtoll(optarg, &cp, 0); | |
| } else { | |
| setLogSize = 0; | |
| } | |
| switch(*cp) { | |
| case 'g': | |
| case 'G': | |
| setLogSize *= 1024; | |
| /* FALLTHRU */ | |
| case 'm': | |
| case 'M': | |
| setLogSize *= 1024; | |
| /* FALLTHRU */ | |
| case 'k': | |
| case 'K': | |
| setLogSize *= 1024; | |
| /* FALLTHRU */ | |
| case '\0': | |
| break; | |
| default: | |
| setLogSize = 0; | |
| } | |
| if (!setLogSize) { | |
| fprintf(stderr, "ERROR: -G <num><multiplier>\n"); | |
| return EXIT_FAILURE; | |
| } | |
| } | |
| break; | |
| case 'p': | |
| if (!optarg) { | |
| getPruneList = 1; | |
| break; | |
| } | |
| // FALLTHRU | |
| case 'P': | |
| setPruneList = optarg; | |
| break; | |
| case 'b': { | |
| if (strcmp(optarg, "default") == 0) { | |
| for (int i = LOG_ID_MIN; i < LOG_ID_MAX; ++i) { | |
| switch (i) { | |
| case LOG_ID_SECURITY: | |
| case LOG_ID_EVENTS: | |
| continue; | |
| case LOG_ID_MAIN: | |
| case LOG_ID_SYSTEM: | |
| case LOG_ID_CRASH: | |
| break; | |
| default: | |
| continue; | |
| } | |
| const char *name = android_log_id_to_name((log_id_t)i); | |
| log_id_t log_id = android_name_to_log_id(name); | |
| if (log_id != (log_id_t)i) { | |
| continue; | |
| } | |
| bool found = false; | |
| for (dev = devices; dev; dev = dev->next) { | |
| if (!strcmp(optarg, dev->device)) { | |
| found = true; | |
| break; | |
| } | |
| if (!dev->next) { | |
| break; | |
| } | |
| } | |
| if (found) { | |
| break; | |
| } | |
| log_device_t* d = new log_device_t(name, false); | |
| if (dev) { | |
| dev->next = d; | |
| dev = d; | |
| } else { | |
| devices = dev = d; | |
| } | |
| g_devCount++; | |
| } | |
| break; | |
| } | |
| if (strcmp(optarg, "all") == 0) { | |
| for (int i = LOG_ID_MIN; i < LOG_ID_MAX; ++i) { | |
| const char *name = android_log_id_to_name((log_id_t)i); | |
| log_id_t log_id = android_name_to_log_id(name); | |
| if (log_id != (log_id_t)i) { | |
| continue; | |
| } | |
| bool found = false; | |
| for (dev = devices; dev; dev = dev->next) { | |
| if (!strcmp(optarg, dev->device)) { | |
| found = true; | |
| break; | |
| } | |
| if (!dev->next) { | |
| break; | |
| } | |
| } | |
| if (found) { | |
| break; | |
| } | |
| bool binary = !strcmp(name, "events") || | |
| !strcmp(name, "security"); | |
| log_device_t* d = new log_device_t(name, binary); | |
| if (dev) { | |
| dev->next = d; | |
| dev = d; | |
| } else { | |
| devices = dev = d; | |
| } | |
| g_devCount++; | |
| } | |
| break; | |
| } | |
| bool binary = !(strcmp(optarg, "events") && | |
| strcmp(optarg, "security")); | |
| if (devices) { | |
| dev = devices; | |
| while (dev->next) { | |
| if (!strcmp(optarg, dev->device)) { | |
| dev = NULL; | |
| break; | |
| } | |
| dev = dev->next; | |
| } | |
| if (dev) { | |
| dev->next = new log_device_t(optarg, binary); | |
| } | |
| } else { | |
| devices = new log_device_t(optarg, binary); | |
| } | |
| g_devCount++; | |
| } | |
| break; | |
| case 'B': | |
| g_printBinary = 1; | |
| break; | |
| case 'f': | |
| if ((tail_time == log_time::EPOCH) && (tail_lines == 0)) { | |
| tail_time = lastLogTime(optarg); | |
| } | |
| // redirect output to a file | |
| g_outputFileName = optarg; | |
| break; | |
| case 'r': | |
| if (!getSizeTArg(optarg, &g_logRotateSizeKBytes, 1)) { | |
| logcat_panic(true, "Invalid parameter %s to -r\n", optarg); | |
| } | |
| break; | |
| case 'n': | |
| if (!getSizeTArg(optarg, &g_maxRotatedLogs, 1)) { | |
| logcat_panic(true, "Invalid parameter %s to -n\n", optarg); | |
| } | |
| break; | |
| case 'v': | |
| err = setLogFormat (optarg); | |
| if (err < 0) { | |
| logcat_panic(true, "Invalid parameter %s to -v\n", optarg); | |
| } | |
| hasSetLogFormat |= err; | |
| break; | |
| case 'Q': | |
| /* this is a *hidden* option used to start a version of logcat */ | |
| /* in an emulated device only. it basically looks for androidboot.logcat= */ | |
| /* on the kernel command line. If something is found, it extracts a log filter */ | |
| /* and uses it to run the program. If nothing is found, the program should */ | |
| /* quit immediately */ | |
| #define KERNEL_OPTION "androidboot.logcat=" | |
| #define CONSOLE_OPTION "androidboot.console=" | |
| { | |
| int fd; | |
| char* logcat; | |
| char* console; | |
| int force_exit = 1; | |
| static char cmdline[1024]; | |
| fd = open("/proc/cmdline", O_RDONLY); | |
| if (fd >= 0) { | |
| int n = read(fd, cmdline, sizeof(cmdline)-1 ); | |
| if (n < 0) n = 0; | |
| cmdline[n] = 0; | |
| close(fd); | |
| } else { | |
| cmdline[0] = 0; | |
| } | |
| logcat = strstr( cmdline, KERNEL_OPTION ); | |
| console = strstr( cmdline, CONSOLE_OPTION ); | |
| if (logcat != NULL) { | |
| char* p = logcat + sizeof(KERNEL_OPTION)-1;; | |
| char* q = strpbrk( p, " \t\n\r" );; | |
| if (q != NULL) | |
| *q = 0; | |
| forceFilters = p; | |
| force_exit = 0; | |
| } | |
| /* if nothing found or invalid filters, exit quietly */ | |
| if (force_exit) { | |
| return EXIT_SUCCESS; | |
| } | |
| /* redirect our output to the emulator console */ | |
| if (console) { | |
| char* p = console + sizeof(CONSOLE_OPTION)-1; | |
| char* q = strpbrk( p, " \t\n\r" ); | |
| char devname[64]; | |
| int len; | |
| if (q != NULL) { | |
| len = q - p; | |
| } else | |
| len = strlen(p); | |
| len = snprintf( devname, sizeof(devname), "/dev/%.*s", len, p ); | |
| fprintf(stderr, "logcat using %s (%d)\n", devname, len); | |
| if (len < (int)sizeof(devname)) { | |
| fd = open( devname, O_WRONLY ); | |
| if (fd >= 0) { | |
| dup2(fd, 1); | |
| dup2(fd, 2); | |
| close(fd); | |
| } | |
| } | |
| } | |
| } | |
| break; | |
| case 'S': | |
| printStatistics = 1; | |
| break; | |
| case ':': | |
| logcat_panic(true, "Option -%c needs an argument\n", optopt); | |
| break; | |
| default: | |
| logcat_panic(true, "Unrecognized Option %c\n", optopt); | |
| break; | |
| } | |
| } | |
| if (g_maxCount && got_t) { | |
| logcat_panic(true, "Cannot use -m (--max-count) and -t together\n"); | |
| } | |
| if (g_printItAnyways && (!g_regex || !g_maxCount)) { | |
| // One day it would be nice if --print -v color and --regex <expr> | |
| // could play with each other and show regex highlighted content. | |
| fprintf(stderr, "WARNING: " | |
| "--print ignored, to be used in combination with\n" | |
| " " | |
| "--regex <expr> and --max-count <N>\n"); | |
| g_printItAnyways = false; | |
| } | |
| if (!devices) { | |
| dev = devices = new log_device_t("main", false); | |
| g_devCount = 1; | |
| if (android_name_to_log_id("system") == LOG_ID_SYSTEM) { | |
| dev = dev->next = new log_device_t("system", false); | |
| g_devCount++; | |
| } | |
| if (android_name_to_log_id("crash") == LOG_ID_CRASH) { | |
| dev = dev->next = new log_device_t("crash", false); | |
| g_devCount++; | |
| } | |
| } | |
| if (g_logRotateSizeKBytes != 0 && g_outputFileName == NULL) { | |
| logcat_panic(true, "-r requires -f as well\n"); | |
| } | |
| setupOutput(); | |
| if (hasSetLogFormat == 0) { | |
| const char* logFormat = getenv("ANDROID_PRINTF_LOG"); | |
| if (logFormat != NULL) { | |
| err = setLogFormat(logFormat); | |
| if (err < 0) { | |
| fprintf(stderr, "invalid format in ANDROID_PRINTF_LOG '%s'\n", | |
| logFormat); | |
| } | |
| } else { | |
| setLogFormat("threadtime"); | |
| } | |
| } | |
| if (forceFilters) { | |
| err = android_log_addFilterString(g_logformat, forceFilters); | |
| if (err < 0) { | |
| logcat_panic(false, "Invalid filter expression in logcat args\n"); | |
| } | |
| } else if (argc == optind) { | |
| // Add from environment variable | |
| char *env_tags_orig = getenv("ANDROID_LOG_TAGS"); | |
| if (env_tags_orig != NULL) { | |
| err = android_log_addFilterString(g_logformat, env_tags_orig); | |
| if (err < 0) { | |
| logcat_panic(true, | |
| "Invalid filter expression in ANDROID_LOG_TAGS\n"); | |
| } | |
| } | |
| } else { | |
| // Add from commandline | |
| for (int i = optind ; i < argc ; i++) { | |
| err = android_log_addFilterString(g_logformat, argv[i]); | |
| if (err < 0) { | |
| logcat_panic(true, "Invalid filter expression '%s'\n", argv[i]); | |
| } | |
| } | |
| } | |
| dev = devices; | |
| if (tail_time != log_time::EPOCH) { | |
| logger_list = android_logger_list_alloc_time(mode, tail_time, pid); | |
| } else { | |
| logger_list = android_logger_list_alloc(mode, tail_lines, pid); | |
| } | |
| const char *openDeviceFail = NULL; | |
| const char *clearFail = NULL; | |
| const char *setSizeFail = NULL; | |
| const char *getSizeFail = NULL; | |
| // We have three orthogonal actions below to clear, set log size and | |
| // get log size. All sharing the same iteration loop. | |
| while (dev) { | |
| dev->logger_list = logger_list; | |
| dev->logger = android_logger_open(logger_list, | |
| android_name_to_log_id(dev->device)); | |
| if (!dev->logger) { | |
| openDeviceFail = openDeviceFail ?: dev->device; | |
| dev = dev->next; | |
| continue; | |
| } | |
| if (clearLog) { | |
| if (android_logger_clear(dev->logger)) { | |
| clearFail = clearFail ?: dev->device; | |
| } | |
| } | |
| if (setLogSize) { | |
| if (android_logger_set_log_size(dev->logger, setLogSize)) { | |
| setSizeFail = setSizeFail ?: dev->device; | |
| } | |
| } | |
| if (getLogSize) { | |
| long size = android_logger_get_log_size(dev->logger); | |
| long readable = android_logger_get_log_readable_size(dev->logger); | |
| if ((size < 0) || (readable < 0)) { | |
| getSizeFail = getSizeFail ?: dev->device; | |
| } else { | |
| printf("%s: ring buffer is %ld%sb (%ld%sb consumed), " | |
| "max entry is %db, max payload is %db\n", dev->device, | |
| value_of_size(size), multiplier_of_size(size), | |
| value_of_size(readable), multiplier_of_size(readable), | |
| (int) LOGGER_ENTRY_MAX_LEN, | |
| (int) LOGGER_ENTRY_MAX_PAYLOAD); | |
| } | |
| } | |
| dev = dev->next; | |
| } | |
| // report any errors in the above loop and exit | |
| if (openDeviceFail) { | |
| logcat_panic(false, "Unable to open log device '%s'\n", openDeviceFail); | |
| } | |
| if (clearFail) { | |
| logcat_panic(false, "failed to clear the '%s' log\n", clearFail); | |
| } | |
| if (setSizeFail) { | |
| logcat_panic(false, "failed to set the '%s' log size\n", setSizeFail); | |
| } | |
| if (getSizeFail) { | |
| logcat_panic(false, "failed to get the readable '%s' log size", | |
| getSizeFail); | |
| } | |
| if (setPruneList) { | |
| size_t len = strlen(setPruneList); | |
| /*extra 32 bytes are needed by android_logger_set_prune_list */ | |
| size_t bLen = len + 32; | |
| char *buf = NULL; | |
| if (asprintf(&buf, "%-*s", (int)(bLen - 1), setPruneList) > 0) { | |
| buf[len] = '\0'; | |
| if (android_logger_set_prune_list(logger_list, buf, bLen)) { | |
| logcat_panic(false, "failed to set the prune list"); | |
| } | |
| free(buf); | |
| } else { | |
| logcat_panic(false, "failed to set the prune list (alloc)"); | |
| } | |
| } | |
| if (printStatistics || getPruneList) { | |
| size_t len = 8192; | |
| char *buf; | |
| for (int retry = 32; | |
| (retry >= 0) && ((buf = new char [len])); | |
| delete [] buf, buf = NULL, --retry) { | |
| if (getPruneList) { | |
| android_logger_get_prune_list(logger_list, buf, len); | |
| } else { | |
| android_logger_get_statistics(logger_list, buf, len); | |
| } | |
| buf[len-1] = '\0'; | |
| if (atol(buf) < 3) { | |
| delete [] buf; | |
| buf = NULL; | |
| break; | |
| } | |
| size_t ret = atol(buf) + 1; | |
| if (ret <= len) { | |
| len = ret; | |
| break; | |
| } | |
| len = ret; | |
| } | |
| if (!buf) { | |
| logcat_panic(false, "failed to read data"); | |
| } | |
| // remove trailing FF | |
| char *cp = buf + len - 1; | |
| *cp = '\0'; | |
| bool truncated = *--cp != '\f'; | |
| if (!truncated) { | |
| *cp = '\0'; | |
| } | |
| // squash out the byte count | |
| cp = buf; | |
| if (!truncated) { | |
| while (isdigit(*cp)) { | |
| ++cp; | |
| } | |
| if (*cp == '\n') { | |
| ++cp; | |
| } | |
| } | |
| printf("%s", cp); | |
| delete [] buf; | |
| return EXIT_SUCCESS; | |
| } | |
| if (getLogSize) { | |
| return EXIT_SUCCESS; | |
| } | |
| if (setLogSize || setPruneList) { | |
| return EXIT_SUCCESS; | |
| } | |
| if (clearLog) { | |
| return EXIT_SUCCESS; | |
| } | |
| //LOG_EVENT_INT(10, 12345); | |
| //LOG_EVENT_LONG(11, 0x1122334455667788LL); | |
| //LOG_EVENT_STRING(0, "whassup, doc?"); | |
| dev = NULL; | |
| log_device_t unexpected("unexpected", false); | |
| while (!g_maxCount || (g_printCount < g_maxCount)) { | |
| struct log_msg log_msg; | |
| log_device_t* d; | |
| int ret = android_logger_list_read(logger_list, &log_msg); | |
| if (ret == 0) { | |
| logcat_panic(false, "read: unexpected EOF!\n"); | |
| } | |
| if (ret < 0) { | |
| if (ret == -EAGAIN) { | |
| break; | |
| } | |
| if (ret == -EIO) { | |
| logcat_panic(false, "read: unexpected EOF!\n"); | |
| } | |
| if (ret == -EINVAL) { | |
| logcat_panic(false, "read: unexpected length.\n"); | |
| } | |
| logcat_panic(false, "logcat read failure"); | |
| } | |
| for (d = devices; d; d = d->next) { | |
| if (android_name_to_log_id(d->device) == log_msg.id()) { | |
| break; | |
| } | |
| } | |
| if (!d) { | |
| g_devCount = 2; // set to Multiple | |
| d = &unexpected; | |
| d->binary = log_msg.id() == LOG_ID_EVENTS; | |
| } | |
| if (dev != d) { | |
| dev = d; | |
| maybePrintStart(dev, printDividers); | |
| } | |
| if (g_printBinary) { | |
| printBinary(&log_msg); | |
| } else { | |
| processBuffer(dev, &log_msg); | |
| } | |
| } | |
| android_logger_list_free(logger_list); | |
| return EXIT_SUCCESS; | |
| } |