1017 lines
28 KiB
C
1017 lines
28 KiB
C
/* //device/libs/cutils/logprint.c
|
|
**
|
|
** Copyright 2006, 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.
|
|
*/
|
|
|
|
#define _GNU_SOURCE /* for asprintf */
|
|
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
#include <arpa/inet.h>
|
|
|
|
#include <cutils/logd.h>
|
|
#include <cutils/logprint.h>
|
|
|
|
typedef struct FilterInfo_t {
|
|
char *mTag;
|
|
android_LogPriority mPri;
|
|
struct FilterInfo_t *p_next;
|
|
} FilterInfo;
|
|
|
|
struct AndroidLogFormat_t {
|
|
android_LogPriority global_pri;
|
|
FilterInfo *filters;
|
|
AndroidLogPrintFormat format;
|
|
};
|
|
|
|
static FilterInfo * filterinfo_new(const char * tag, android_LogPriority pri)
|
|
{
|
|
FilterInfo *p_ret;
|
|
|
|
p_ret = (FilterInfo *)calloc(1, sizeof(FilterInfo));
|
|
p_ret->mTag = strdup(tag);
|
|
p_ret->mPri = pri;
|
|
|
|
return p_ret;
|
|
}
|
|
|
|
static void filterinfo_free(FilterInfo *p_info)
|
|
{
|
|
if (p_info == NULL) {
|
|
return;
|
|
}
|
|
|
|
free(p_info->mTag);
|
|
p_info->mTag = NULL;
|
|
}
|
|
|
|
/*
|
|
* Note: also accepts 0-9 priorities
|
|
* returns ANDROID_LOG_UNKNOWN if the character is unrecognized
|
|
*/
|
|
static android_LogPriority filterCharToPri (char c)
|
|
{
|
|
android_LogPriority pri;
|
|
|
|
c = tolower(c);
|
|
|
|
if (c >= '0' && c <= '9') {
|
|
if (c >= ('0'+ANDROID_LOG_SILENT)) {
|
|
pri = ANDROID_LOG_VERBOSE;
|
|
} else {
|
|
pri = (android_LogPriority)(c - '0');
|
|
}
|
|
} else if (c == 'v') {
|
|
pri = ANDROID_LOG_VERBOSE;
|
|
} else if (c == 'd') {
|
|
pri = ANDROID_LOG_DEBUG;
|
|
} else if (c == 'i') {
|
|
pri = ANDROID_LOG_INFO;
|
|
} else if (c == 'w') {
|
|
pri = ANDROID_LOG_WARN;
|
|
} else if (c == 'e') {
|
|
pri = ANDROID_LOG_ERROR;
|
|
} else if (c == 'f') {
|
|
pri = ANDROID_LOG_FATAL;
|
|
} else if (c == 's') {
|
|
pri = ANDROID_LOG_SILENT;
|
|
} else if (c == '*') {
|
|
pri = ANDROID_LOG_DEFAULT;
|
|
} else {
|
|
pri = ANDROID_LOG_UNKNOWN;
|
|
}
|
|
|
|
return pri;
|
|
}
|
|
|
|
static char filterPriToChar (android_LogPriority pri)
|
|
{
|
|
switch (pri) {
|
|
case ANDROID_LOG_VERBOSE: return 'V';
|
|
case ANDROID_LOG_DEBUG: return 'D';
|
|
case ANDROID_LOG_INFO: return 'I';
|
|
case ANDROID_LOG_WARN: return 'W';
|
|
case ANDROID_LOG_ERROR: return 'E';
|
|
case ANDROID_LOG_FATAL: return 'F';
|
|
case ANDROID_LOG_SILENT: return 'S';
|
|
|
|
case ANDROID_LOG_DEFAULT:
|
|
case ANDROID_LOG_UNKNOWN:
|
|
default: return '?';
|
|
}
|
|
}
|
|
|
|
static android_LogPriority filterPriForTag(
|
|
AndroidLogFormat *p_format, const char *tag)
|
|
{
|
|
FilterInfo *p_curFilter;
|
|
|
|
for (p_curFilter = p_format->filters
|
|
; p_curFilter != NULL
|
|
; p_curFilter = p_curFilter->p_next
|
|
) {
|
|
if (0 == strcmp(tag, p_curFilter->mTag)) {
|
|
if (p_curFilter->mPri == ANDROID_LOG_DEFAULT) {
|
|
return p_format->global_pri;
|
|
} else {
|
|
return p_curFilter->mPri;
|
|
}
|
|
}
|
|
}
|
|
|
|
return p_format->global_pri;
|
|
}
|
|
|
|
/** for debugging */
|
|
static void dumpFilters(AndroidLogFormat *p_format)
|
|
{
|
|
FilterInfo *p_fi;
|
|
|
|
for (p_fi = p_format->filters ; p_fi != NULL ; p_fi = p_fi->p_next) {
|
|
char cPri = filterPriToChar(p_fi->mPri);
|
|
if (p_fi->mPri == ANDROID_LOG_DEFAULT) {
|
|
cPri = filterPriToChar(p_format->global_pri);
|
|
}
|
|
fprintf(stderr,"%s:%c\n", p_fi->mTag, cPri);
|
|
}
|
|
|
|
fprintf(stderr,"*:%c\n", filterPriToChar(p_format->global_pri));
|
|
|
|
}
|
|
|
|
/**
|
|
* returns 1 if this log line should be printed based on its priority
|
|
* and tag, and 0 if it should not
|
|
*/
|
|
int android_log_shouldPrintLine (
|
|
AndroidLogFormat *p_format, const char *tag, android_LogPriority pri)
|
|
{
|
|
return pri >= filterPriForTag(p_format, tag);
|
|
}
|
|
|
|
AndroidLogFormat *android_log_format_new()
|
|
{
|
|
AndroidLogFormat *p_ret;
|
|
|
|
p_ret = calloc(1, sizeof(AndroidLogFormat));
|
|
|
|
p_ret->global_pri = ANDROID_LOG_VERBOSE;
|
|
p_ret->format = FORMAT_BRIEF;
|
|
|
|
return p_ret;
|
|
}
|
|
|
|
void android_log_format_free(AndroidLogFormat *p_format)
|
|
{
|
|
FilterInfo *p_info, *p_info_old;
|
|
|
|
p_info = p_format->filters;
|
|
|
|
while (p_info != NULL) {
|
|
p_info_old = p_info;
|
|
p_info = p_info->p_next;
|
|
|
|
free(p_info_old);
|
|
}
|
|
|
|
free(p_format);
|
|
}
|
|
|
|
|
|
|
|
void android_log_setPrintFormat(AndroidLogFormat *p_format,
|
|
AndroidLogPrintFormat format)
|
|
{
|
|
p_format->format=format;
|
|
}
|
|
|
|
/**
|
|
* Returns FORMAT_OFF on invalid string
|
|
*/
|
|
AndroidLogPrintFormat android_log_formatFromString(const char * formatString)
|
|
{
|
|
static AndroidLogPrintFormat format;
|
|
|
|
if (strcmp(formatString, "brief") == 0) format = FORMAT_BRIEF;
|
|
else if (strcmp(formatString, "process") == 0) format = FORMAT_PROCESS;
|
|
else if (strcmp(formatString, "tag") == 0) format = FORMAT_TAG;
|
|
else if (strcmp(formatString, "thread") == 0) format = FORMAT_THREAD;
|
|
else if (strcmp(formatString, "raw") == 0) format = FORMAT_RAW;
|
|
else if (strcmp(formatString, "time") == 0) format = FORMAT_TIME;
|
|
else if (strcmp(formatString, "threadtime") == 0) format = FORMAT_THREADTIME;
|
|
else if (strcmp(formatString, "long") == 0) format = FORMAT_LONG;
|
|
else format = FORMAT_OFF;
|
|
|
|
return format;
|
|
}
|
|
|
|
/**
|
|
* filterExpression: a single filter expression
|
|
* eg "AT:d"
|
|
*
|
|
* returns 0 on success and -1 on invalid expression
|
|
*
|
|
* Assumes single threaded execution
|
|
*/
|
|
|
|
int android_log_addFilterRule(AndroidLogFormat *p_format,
|
|
const char *filterExpression)
|
|
{
|
|
size_t i=0;
|
|
size_t tagNameLength;
|
|
android_LogPriority pri = ANDROID_LOG_DEFAULT;
|
|
|
|
tagNameLength = strcspn(filterExpression, ":");
|
|
|
|
if (tagNameLength == 0) {
|
|
goto error;
|
|
}
|
|
|
|
if(filterExpression[tagNameLength] == ':') {
|
|
pri = filterCharToPri(filterExpression[tagNameLength+1]);
|
|
|
|
if (pri == ANDROID_LOG_UNKNOWN) {
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if(0 == strncmp("*", filterExpression, tagNameLength)) {
|
|
// This filter expression refers to the global filter
|
|
// The default level for this is DEBUG if the priority
|
|
// is unspecified
|
|
if (pri == ANDROID_LOG_DEFAULT) {
|
|
pri = ANDROID_LOG_DEBUG;
|
|
}
|
|
|
|
p_format->global_pri = pri;
|
|
} else {
|
|
// for filter expressions that don't refer to the global
|
|
// filter, the default is verbose if the priority is unspecified
|
|
if (pri == ANDROID_LOG_DEFAULT) {
|
|
pri = ANDROID_LOG_VERBOSE;
|
|
}
|
|
|
|
char *tagName;
|
|
|
|
// Presently HAVE_STRNDUP is never defined, so the second case is always taken
|
|
// Darwin doesn't have strnup, everything else does
|
|
#ifdef HAVE_STRNDUP
|
|
tagName = strndup(filterExpression, tagNameLength);
|
|
#else
|
|
//a few extra bytes copied...
|
|
tagName = strdup(filterExpression);
|
|
tagName[tagNameLength] = '\0';
|
|
#endif /*HAVE_STRNDUP*/
|
|
|
|
FilterInfo *p_fi = filterinfo_new(tagName, pri);
|
|
free(tagName);
|
|
|
|
p_fi->p_next = p_format->filters;
|
|
p_format->filters = p_fi;
|
|
}
|
|
|
|
return 0;
|
|
error:
|
|
return -1;
|
|
}
|
|
|
|
|
|
/**
|
|
* filterString: a comma/whitespace-separated set of filter expressions
|
|
*
|
|
* eg "AT:d *:i"
|
|
*
|
|
* returns 0 on success and -1 on invalid expression
|
|
*
|
|
* Assumes single threaded execution
|
|
*
|
|
*/
|
|
|
|
int android_log_addFilterString(AndroidLogFormat *p_format,
|
|
const char *filterString)
|
|
{
|
|
char *filterStringCopy = strdup (filterString);
|
|
char *p_cur = filterStringCopy;
|
|
char *p_ret;
|
|
int err;
|
|
|
|
// Yes, I'm using strsep
|
|
while (NULL != (p_ret = strsep(&p_cur, " \t,"))) {
|
|
// ignore whitespace-only entries
|
|
if(p_ret[0] != '\0') {
|
|
err = android_log_addFilterRule(p_format, p_ret);
|
|
|
|
if (err < 0) {
|
|
goto error;
|
|
}
|
|
}
|
|
}
|
|
|
|
free (filterStringCopy);
|
|
return 0;
|
|
error:
|
|
free (filterStringCopy);
|
|
return -1;
|
|
}
|
|
|
|
static inline char * strip_end(char *str)
|
|
{
|
|
char *end = str + strlen(str) - 1;
|
|
|
|
while (end >= str && isspace(*end))
|
|
*end-- = '\0';
|
|
return str;
|
|
}
|
|
|
|
/**
|
|
* Splits a wire-format buffer into an AndroidLogEntry
|
|
* entry allocated by caller. Pointers will point directly into buf
|
|
*
|
|
* Returns 0 on success and -1 on invalid wire format (entry will be
|
|
* in unspecified state)
|
|
*/
|
|
int android_log_processLogBuffer(struct logger_entry *buf,
|
|
AndroidLogEntry *entry)
|
|
{
|
|
entry->tv_sec = buf->sec;
|
|
entry->tv_nsec = buf->nsec;
|
|
entry->pid = buf->pid;
|
|
entry->tid = buf->tid;
|
|
|
|
/*
|
|
* format: <priority:1><tag:N>\0<message:N>\0
|
|
*
|
|
* tag str
|
|
* starts at buf->msg+1
|
|
* msg
|
|
* starts at buf->msg+1+len(tag)+1
|
|
*
|
|
* The message may have been truncated by the kernel log driver.
|
|
* When that happens, we must null-terminate the message ourselves.
|
|
*/
|
|
if (buf->len < 3) {
|
|
// An well-formed entry must consist of at least a priority
|
|
// and two null characters
|
|
fprintf(stderr, "+++ LOG: entry too small\n");
|
|
return -1;
|
|
}
|
|
|
|
int msgStart = -1;
|
|
int msgEnd = -1;
|
|
|
|
int i;
|
|
for (i = 1; i < buf->len; i++) {
|
|
if (buf->msg[i] == '\0') {
|
|
if (msgStart == -1) {
|
|
msgStart = i + 1;
|
|
} else {
|
|
msgEnd = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (msgStart == -1) {
|
|
fprintf(stderr, "+++ LOG: malformed log message\n");
|
|
return -1;
|
|
}
|
|
if (msgEnd == -1) {
|
|
// incoming message not null-terminated; force it
|
|
msgEnd = buf->len - 1;
|
|
buf->msg[msgEnd] = '\0';
|
|
}
|
|
|
|
entry->priority = buf->msg[0];
|
|
entry->tag = buf->msg + 1;
|
|
entry->message = buf->msg + msgStart;
|
|
entry->messageLen = msgEnd - msgStart;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Extract a 4-byte value from a byte stream.
|
|
*/
|
|
static inline uint32_t get4LE(const uint8_t* src)
|
|
{
|
|
return src[0] | (src[1] << 8) | (src[2] << 16) | (src[3] << 24);
|
|
}
|
|
|
|
/*
|
|
* Extract an 8-byte value from a byte stream.
|
|
*/
|
|
static inline uint64_t get8LE(const uint8_t* src)
|
|
{
|
|
uint32_t low, high;
|
|
|
|
low = src[0] | (src[1] << 8) | (src[2] << 16) | (src[3] << 24);
|
|
high = src[4] | (src[5] << 8) | (src[6] << 16) | (src[7] << 24);
|
|
return ((long long) high << 32) | (long long) low;
|
|
}
|
|
|
|
|
|
/*
|
|
* Recursively convert binary log data to printable form.
|
|
*
|
|
* This needs to be recursive because you can have lists of lists.
|
|
*
|
|
* If we run out of room, we stop processing immediately. It's important
|
|
* for us to check for space on every output element to avoid producing
|
|
* garbled output.
|
|
*
|
|
* Returns 0 on success, 1 on buffer full, -1 on failure.
|
|
*/
|
|
static int android_log_printBinaryEvent(const unsigned char** pEventData,
|
|
size_t* pEventDataLen, char** pOutBuf, size_t* pOutBufLen)
|
|
{
|
|
const unsigned char* eventData = *pEventData;
|
|
size_t eventDataLen = *pEventDataLen;
|
|
char* outBuf = *pOutBuf;
|
|
size_t outBufLen = *pOutBufLen;
|
|
unsigned char type;
|
|
size_t outCount;
|
|
int result = 0;
|
|
|
|
if (eventDataLen < 1)
|
|
return -1;
|
|
type = *eventData++;
|
|
eventDataLen--;
|
|
|
|
//fprintf(stderr, "--- type=%d (rem len=%d)\n", type, eventDataLen);
|
|
|
|
switch (type) {
|
|
case EVENT_TYPE_INT:
|
|
/* 32-bit signed int */
|
|
{
|
|
int ival;
|
|
|
|
if (eventDataLen < 4)
|
|
return -1;
|
|
ival = get4LE(eventData);
|
|
eventData += 4;
|
|
eventDataLen -= 4;
|
|
|
|
outCount = snprintf(outBuf, outBufLen, "%d", ival);
|
|
if (outCount < outBufLen) {
|
|
outBuf += outCount;
|
|
outBufLen -= outCount;
|
|
} else {
|
|
/* halt output */
|
|
goto no_room;
|
|
}
|
|
}
|
|
break;
|
|
case EVENT_TYPE_LONG:
|
|
/* 64-bit signed long */
|
|
{
|
|
long long lval;
|
|
|
|
if (eventDataLen < 8)
|
|
return -1;
|
|
lval = get8LE(eventData);
|
|
eventData += 8;
|
|
eventDataLen -= 8;
|
|
|
|
outCount = snprintf(outBuf, outBufLen, "%lld", lval);
|
|
if (outCount < outBufLen) {
|
|
outBuf += outCount;
|
|
outBufLen -= outCount;
|
|
} else {
|
|
/* halt output */
|
|
goto no_room;
|
|
}
|
|
}
|
|
break;
|
|
case EVENT_TYPE_STRING:
|
|
/* UTF-8 chars, not NULL-terminated */
|
|
{
|
|
unsigned int strLen;
|
|
|
|
if (eventDataLen < 4)
|
|
return -1;
|
|
strLen = get4LE(eventData);
|
|
eventData += 4;
|
|
eventDataLen -= 4;
|
|
|
|
if (eventDataLen < strLen)
|
|
return -1;
|
|
|
|
if (strLen < outBufLen) {
|
|
memcpy(outBuf, eventData, strLen);
|
|
outBuf += strLen;
|
|
outBufLen -= strLen;
|
|
} else if (outBufLen > 0) {
|
|
/* copy what we can */
|
|
memcpy(outBuf, eventData, outBufLen);
|
|
outBuf += outBufLen;
|
|
outBufLen -= outBufLen;
|
|
goto no_room;
|
|
}
|
|
eventData += strLen;
|
|
eventDataLen -= strLen;
|
|
break;
|
|
}
|
|
case EVENT_TYPE_LIST:
|
|
/* N items, all different types */
|
|
{
|
|
unsigned char count;
|
|
int i;
|
|
|
|
if (eventDataLen < 1)
|
|
return -1;
|
|
|
|
count = *eventData++;
|
|
eventDataLen--;
|
|
|
|
if (outBufLen > 0) {
|
|
*outBuf++ = '[';
|
|
outBufLen--;
|
|
} else {
|
|
goto no_room;
|
|
}
|
|
|
|
for (i = 0; i < count; i++) {
|
|
result = android_log_printBinaryEvent(&eventData, &eventDataLen,
|
|
&outBuf, &outBufLen);
|
|
if (result != 0)
|
|
goto bail;
|
|
|
|
if (i < count-1) {
|
|
if (outBufLen > 0) {
|
|
*outBuf++ = ',';
|
|
outBufLen--;
|
|
} else {
|
|
goto no_room;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (outBufLen > 0) {
|
|
*outBuf++ = ']';
|
|
outBufLen--;
|
|
} else {
|
|
goto no_room;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
fprintf(stderr, "Unknown binary event type %d\n", type);
|
|
return -1;
|
|
}
|
|
|
|
bail:
|
|
*pEventData = eventData;
|
|
*pEventDataLen = eventDataLen;
|
|
*pOutBuf = outBuf;
|
|
*pOutBufLen = outBufLen;
|
|
return result;
|
|
|
|
no_room:
|
|
result = 1;
|
|
goto bail;
|
|
}
|
|
|
|
/**
|
|
* Convert a binary log entry to ASCII form.
|
|
*
|
|
* For convenience we mimic the processLogBuffer API. There is no
|
|
* pre-defined output length for the binary data, since we're free to format
|
|
* it however we choose, which means we can't really use a fixed-size buffer
|
|
* here.
|
|
*/
|
|
int android_log_processBinaryLogBuffer(struct logger_entry *buf,
|
|
AndroidLogEntry *entry, const EventTagMap* map, char* messageBuf,
|
|
int messageBufLen)
|
|
{
|
|
size_t inCount;
|
|
unsigned int tagIndex;
|
|
const unsigned char* eventData;
|
|
|
|
entry->tv_sec = buf->sec;
|
|
entry->tv_nsec = buf->nsec;
|
|
entry->priority = ANDROID_LOG_INFO;
|
|
entry->pid = buf->pid;
|
|
entry->tid = buf->tid;
|
|
|
|
/*
|
|
* Pull the tag out.
|
|
*/
|
|
eventData = (const unsigned char*) buf->msg;
|
|
inCount = buf->len;
|
|
if (inCount < 4)
|
|
return -1;
|
|
tagIndex = get4LE(eventData);
|
|
eventData += 4;
|
|
inCount -= 4;
|
|
|
|
if (map != NULL) {
|
|
entry->tag = android_lookupEventTag(map, tagIndex);
|
|
} else {
|
|
entry->tag = NULL;
|
|
}
|
|
|
|
/*
|
|
* If we don't have a map, or didn't find the tag number in the map,
|
|
* stuff a generated tag value into the start of the output buffer and
|
|
* shift the buffer pointers down.
|
|
*/
|
|
if (entry->tag == NULL) {
|
|
int tagLen;
|
|
|
|
tagLen = snprintf(messageBuf, messageBufLen, "[%d]", tagIndex);
|
|
entry->tag = messageBuf;
|
|
messageBuf += tagLen+1;
|
|
messageBufLen -= tagLen+1;
|
|
}
|
|
|
|
/*
|
|
* Format the event log data into the buffer.
|
|
*/
|
|
char* outBuf = messageBuf;
|
|
size_t outRemaining = messageBufLen-1; /* leave one for nul byte */
|
|
int result;
|
|
result = android_log_printBinaryEvent(&eventData, &inCount, &outBuf,
|
|
&outRemaining);
|
|
if (result < 0) {
|
|
fprintf(stderr, "Binary log entry conversion failed\n");
|
|
return -1;
|
|
} else if (result == 1) {
|
|
if (outBuf > messageBuf) {
|
|
/* leave an indicator */
|
|
*(outBuf-1) = '!';
|
|
} else {
|
|
/* no room to output anything at all */
|
|
*outBuf++ = '!';
|
|
outRemaining--;
|
|
}
|
|
/* pretend we ate all the data */
|
|
inCount = 0;
|
|
}
|
|
|
|
/* eat the silly terminating '\n' */
|
|
if (inCount == 1 && *eventData == '\n') {
|
|
eventData++;
|
|
inCount--;
|
|
}
|
|
|
|
if (inCount != 0) {
|
|
fprintf(stderr,
|
|
"Warning: leftover binary log data (%zu bytes)\n", inCount);
|
|
}
|
|
|
|
/*
|
|
* Terminate the buffer. The NUL byte does not count as part of
|
|
* entry->messageLen.
|
|
*/
|
|
*outBuf = '\0';
|
|
entry->messageLen = outBuf - messageBuf;
|
|
assert(entry->messageLen == (messageBufLen-1) - outRemaining);
|
|
|
|
entry->message = messageBuf;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Formats a log message into a buffer
|
|
*
|
|
* Uses defaultBuffer if it can, otherwise malloc()'s a new buffer
|
|
* If return value != defaultBuffer, caller must call free()
|
|
* Returns NULL on malloc error
|
|
*/
|
|
|
|
char *android_log_formatLogLine (
|
|
AndroidLogFormat *p_format,
|
|
char *defaultBuffer,
|
|
size_t defaultBufferSize,
|
|
const AndroidLogEntry *entry,
|
|
size_t *p_outLength)
|
|
{
|
|
#if defined(HAVE_LOCALTIME_R)
|
|
struct tm tmBuf;
|
|
#endif
|
|
struct tm* ptm;
|
|
char timeBuf[32];
|
|
char headerBuf[128];
|
|
char prefixBuf[128], suffixBuf[128];
|
|
char priChar;
|
|
int prefixSuffixIsHeaderFooter = 0;
|
|
char * ret = NULL;
|
|
|
|
priChar = filterPriToChar(entry->priority);
|
|
|
|
/*
|
|
* Get the current date/time in pretty form
|
|
*
|
|
* It's often useful when examining a log with "less" to jump to
|
|
* a specific point in the file by searching for the date/time stamp.
|
|
* For this reason it's very annoying to have regexp meta characters
|
|
* in the time stamp. Don't use forward slashes, parenthesis,
|
|
* brackets, asterisks, or other special chars here.
|
|
*/
|
|
#if defined(HAVE_LOCALTIME_R)
|
|
ptm = localtime_r(&(entry->tv_sec), &tmBuf);
|
|
#else
|
|
ptm = localtime(&(entry->tv_sec));
|
|
#endif
|
|
//strftime(timeBuf, sizeof(timeBuf), "%Y-%m-%d %H:%M:%S", ptm);
|
|
strftime(timeBuf, sizeof(timeBuf), "%m-%d %H:%M:%S", ptm);
|
|
|
|
/*
|
|
* Construct a buffer containing the log header and log message.
|
|
*/
|
|
size_t prefixLen, suffixLen;
|
|
|
|
switch (p_format->format) {
|
|
case FORMAT_TAG:
|
|
prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
|
|
"%c/%-8s: ", priChar, entry->tag);
|
|
strcpy(suffixBuf, "\n"); suffixLen = 1;
|
|
break;
|
|
case FORMAT_PROCESS:
|
|
prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
|
|
"%c(%5d) ", priChar, entry->pid);
|
|
suffixLen = snprintf(suffixBuf, sizeof(suffixBuf),
|
|
" (%s)\n", entry->tag);
|
|
break;
|
|
case FORMAT_THREAD:
|
|
prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
|
|
"%c(%5d:%5d) ", priChar, entry->pid, entry->tid);
|
|
strcpy(suffixBuf, "\n");
|
|
suffixLen = 1;
|
|
break;
|
|
case FORMAT_RAW:
|
|
prefixBuf[0] = 0;
|
|
prefixLen = 0;
|
|
strcpy(suffixBuf, "\n");
|
|
suffixLen = 1;
|
|
break;
|
|
case FORMAT_TIME:
|
|
prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
|
|
"%s.%03ld %c/%-8s(%5d): ", timeBuf, entry->tv_nsec / 1000000,
|
|
priChar, entry->tag, entry->pid);
|
|
strcpy(suffixBuf, "\n");
|
|
suffixLen = 1;
|
|
break;
|
|
case FORMAT_THREADTIME:
|
|
prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
|
|
"%s.%03ld %5d %5d %c %-8s: ", timeBuf, entry->tv_nsec / 1000000,
|
|
entry->pid, entry->tid, priChar, entry->tag);
|
|
strcpy(suffixBuf, "\n");
|
|
suffixLen = 1;
|
|
break;
|
|
case FORMAT_LONG:
|
|
prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
|
|
"[ %s.%03ld %5d:%5d %c/%-8s ]\n",
|
|
timeBuf, entry->tv_nsec / 1000000, entry->pid,
|
|
entry->tid, priChar, entry->tag);
|
|
strcpy(suffixBuf, "\n\n");
|
|
suffixLen = 2;
|
|
prefixSuffixIsHeaderFooter = 1;
|
|
break;
|
|
case FORMAT_BRIEF:
|
|
default:
|
|
prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
|
|
"%c/%-8s(%5d): ", priChar, entry->tag, entry->pid);
|
|
strcpy(suffixBuf, "\n");
|
|
suffixLen = 1;
|
|
break;
|
|
}
|
|
/* snprintf has a weird return value. It returns what would have been
|
|
* written given a large enough buffer. In the case that the prefix is
|
|
* longer then our buffer(128), it messes up the calculations below
|
|
* possibly causing heap corruption. To avoid this we double check and
|
|
* set the length at the maximum (size minus null byte)
|
|
*/
|
|
if(prefixLen >= sizeof(prefixBuf))
|
|
prefixLen = sizeof(prefixBuf) - 1;
|
|
if(suffixLen >= sizeof(suffixBuf))
|
|
suffixLen = sizeof(suffixBuf) - 1;
|
|
|
|
/* the following code is tragically unreadable */
|
|
|
|
size_t numLines;
|
|
size_t i;
|
|
char *p;
|
|
size_t bufferSize;
|
|
const char *pm;
|
|
|
|
if (prefixSuffixIsHeaderFooter) {
|
|
// we're just wrapping message with a header/footer
|
|
numLines = 1;
|
|
} else {
|
|
pm = entry->message;
|
|
numLines = 0;
|
|
|
|
// The line-end finding here must match the line-end finding
|
|
// in for ( ... numLines...) loop below
|
|
while (pm < (entry->message + entry->messageLen)) {
|
|
if (*pm++ == '\n') numLines++;
|
|
}
|
|
// plus one line for anything not newline-terminated at the end
|
|
if (pm > entry->message && *(pm-1) != '\n') numLines++;
|
|
}
|
|
|
|
// this is an upper bound--newlines in message may be counted
|
|
// extraneously
|
|
bufferSize = (numLines * (prefixLen + suffixLen)) + entry->messageLen + 1;
|
|
|
|
if (defaultBufferSize >= bufferSize) {
|
|
ret = defaultBuffer;
|
|
} else {
|
|
ret = (char *)malloc(bufferSize);
|
|
|
|
if (ret == NULL) {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
ret[0] = '\0'; /* to start strcat off */
|
|
|
|
p = ret;
|
|
pm = entry->message;
|
|
|
|
if (prefixSuffixIsHeaderFooter) {
|
|
strcat(p, prefixBuf);
|
|
p += prefixLen;
|
|
strncat(p, entry->message, entry->messageLen);
|
|
p += entry->messageLen;
|
|
strcat(p, suffixBuf);
|
|
p += suffixLen;
|
|
} else {
|
|
while(pm < (entry->message + entry->messageLen)) {
|
|
const char *lineStart;
|
|
size_t lineLen;
|
|
lineStart = pm;
|
|
|
|
// Find the next end-of-line in message
|
|
while (pm < (entry->message + entry->messageLen)
|
|
&& *pm != '\n') pm++;
|
|
lineLen = pm - lineStart;
|
|
|
|
strcat(p, prefixBuf);
|
|
p += prefixLen;
|
|
strncat(p, lineStart, lineLen);
|
|
p += lineLen;
|
|
strcat(p, suffixBuf);
|
|
p += suffixLen;
|
|
|
|
if (*pm == '\n') pm++;
|
|
}
|
|
}
|
|
|
|
if (p_outLength != NULL) {
|
|
*p_outLength = p - ret;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Either print or do not print log line, based on filter
|
|
*
|
|
* Returns count bytes written
|
|
*/
|
|
|
|
int android_log_printLogLine(
|
|
AndroidLogFormat *p_format,
|
|
int fd,
|
|
const AndroidLogEntry *entry)
|
|
{
|
|
int ret;
|
|
char defaultBuffer[512];
|
|
char *outBuffer = NULL;
|
|
size_t totalLen;
|
|
|
|
outBuffer = android_log_formatLogLine(p_format, defaultBuffer,
|
|
sizeof(defaultBuffer), entry, &totalLen);
|
|
|
|
if (!outBuffer)
|
|
return -1;
|
|
|
|
do {
|
|
ret = write(fd, outBuffer, totalLen);
|
|
} while (ret < 0 && errno == EINTR);
|
|
|
|
if (ret < 0) {
|
|
fprintf(stderr, "+++ LOG: write failed (errno=%d)\n", errno);
|
|
ret = 0;
|
|
goto done;
|
|
}
|
|
|
|
if (((size_t)ret) < totalLen) {
|
|
fprintf(stderr, "+++ LOG: write partial (%d of %d)\n", ret,
|
|
(int)totalLen);
|
|
goto done;
|
|
}
|
|
|
|
done:
|
|
if (outBuffer != defaultBuffer) {
|
|
free(outBuffer);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
void logprint_run_tests()
|
|
{
|
|
#if 0
|
|
|
|
fprintf(stderr, "tests disabled\n");
|
|
|
|
#else
|
|
|
|
int err;
|
|
const char *tag;
|
|
AndroidLogFormat *p_format;
|
|
|
|
p_format = android_log_format_new();
|
|
|
|
fprintf(stderr, "running tests\n");
|
|
|
|
tag = "random";
|
|
|
|
android_log_addFilterRule(p_format,"*:i");
|
|
|
|
assert (ANDROID_LOG_INFO == filterPriForTag(p_format, "random"));
|
|
assert(android_log_shouldPrintLine(p_format, tag, ANDROID_LOG_DEBUG) == 0);
|
|
android_log_addFilterRule(p_format, "*");
|
|
assert (ANDROID_LOG_DEBUG == filterPriForTag(p_format, "random"));
|
|
assert(android_log_shouldPrintLine(p_format, tag, ANDROID_LOG_DEBUG) > 0);
|
|
android_log_addFilterRule(p_format, "*:v");
|
|
assert (ANDROID_LOG_VERBOSE == filterPriForTag(p_format, "random"));
|
|
assert(android_log_shouldPrintLine(p_format, tag, ANDROID_LOG_DEBUG) > 0);
|
|
android_log_addFilterRule(p_format, "*:i");
|
|
assert (ANDROID_LOG_INFO == filterPriForTag(p_format, "random"));
|
|
assert(android_log_shouldPrintLine(p_format, tag, ANDROID_LOG_DEBUG) == 0);
|
|
|
|
android_log_addFilterRule(p_format, "random");
|
|
assert (ANDROID_LOG_VERBOSE == filterPriForTag(p_format, "random"));
|
|
assert(android_log_shouldPrintLine(p_format, tag, ANDROID_LOG_DEBUG) > 0);
|
|
android_log_addFilterRule(p_format, "random:v");
|
|
assert (ANDROID_LOG_VERBOSE == filterPriForTag(p_format, "random"));
|
|
assert(android_log_shouldPrintLine(p_format, tag, ANDROID_LOG_DEBUG) > 0);
|
|
android_log_addFilterRule(p_format, "random:d");
|
|
assert (ANDROID_LOG_DEBUG == filterPriForTag(p_format, "random"));
|
|
assert(android_log_shouldPrintLine(p_format, tag, ANDROID_LOG_DEBUG) > 0);
|
|
android_log_addFilterRule(p_format, "random:w");
|
|
assert (ANDROID_LOG_WARN == filterPriForTag(p_format, "random"));
|
|
assert(android_log_shouldPrintLine(p_format, tag, ANDROID_LOG_DEBUG) == 0);
|
|
|
|
android_log_addFilterRule(p_format, "crap:*");
|
|
assert (ANDROID_LOG_VERBOSE== filterPriForTag(p_format, "crap"));
|
|
assert(android_log_shouldPrintLine(p_format, "crap", ANDROID_LOG_VERBOSE) > 0);
|
|
|
|
// invalid expression
|
|
err = android_log_addFilterRule(p_format, "random:z");
|
|
assert (err < 0);
|
|
assert (ANDROID_LOG_WARN == filterPriForTag(p_format, "random"));
|
|
assert(android_log_shouldPrintLine(p_format, tag, ANDROID_LOG_DEBUG) == 0);
|
|
|
|
// Issue #550946
|
|
err = android_log_addFilterString(p_format, " ");
|
|
assert(err == 0);
|
|
assert(ANDROID_LOG_WARN == filterPriForTag(p_format, "random"));
|
|
|
|
// note trailing space
|
|
err = android_log_addFilterString(p_format, "*:s random:d ");
|
|
assert(err == 0);
|
|
assert(ANDROID_LOG_DEBUG == filterPriForTag(p_format, "random"));
|
|
|
|
err = android_log_addFilterString(p_format, "*:s random:z");
|
|
assert(err < 0);
|
|
|
|
|
|
#if 0
|
|
char *ret;
|
|
char defaultBuffer[512];
|
|
|
|
ret = android_log_formatLogLine(p_format,
|
|
defaultBuffer, sizeof(defaultBuffer), 0, ANDROID_LOG_ERROR, 123,
|
|
123, 123, "random", "nofile", strlen("Hello"), "Hello", NULL);
|
|
#endif
|
|
|
|
|
|
fprintf(stderr, "tests complete\n");
|
|
#endif
|
|
}
|