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 nsInfoBuf[32];
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 nsInfoLen, prefixLen, suffixLen;
nsInfoLen = 0;
if (entry->ns_initpid) {
nsInfoLen = snprintf(nsInfoBuf, sizeof(nsInfoBuf),
"|%*s(%5d)| ", DEV_NS_TAG_LEN,
!entry->ns_tag[0] ? "<init>" : entry->ns_tag,
entry->ns_initpid);
}
if (nsInfoLen >= sizeof(nsInfoBuf))
nsInfoLen = sizeof(nsInfoBuf) - 1;
size_t prefixColorLen = 0;
char * prefixBufTmp = prefixBuf;
size_t prefixBufTmpRemainLen = sizeof(prefixBuf);
if (p_format->colored_output == OUTPUT_COLOR_ON) {
prefixColorLen = snprintf(prefixBufTmp, prefixBufTmpRemainLen, "%c[%d;%d;%dm", 0x1B, 38, 5, colorFromPri(entry->priority));
if(prefixColorLen >= prefixBufTmpRemainLen)
prefixColorLen = prefixBufTmpRemainLen - 1;
prefixBufTmp += prefixColorLen;
prefixBufTmpRemainLen -= prefixColorLen;
}
switch (p_format->format) {
case FORMAT_TAG:
prefixLen = snprintf(prefixBufTmp, prefixBufTmpRemainLen,
"%c/%-8s: ", priChar, entry->tag);
strcpy(suffixBuf, "\n"); suffixLen = 1;
break;
case FORMAT_PROCESS:
prefixLen = snprintf(prefixBufTmp, prefixBufTmpRemainLen,
"%c(%5d) ", priChar, entry->pid);
suffixLen = snprintf(suffixBuf, sizeof(suffixBuf),
" (%s)\n", entry->tag);
break;
case FORMAT_THREAD:
prefixLen = snprintf(prefixBufTmp, prefixBufTmpRemainLen,
"%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(prefixBufTmp, prefixBufTmpRemainLen,
"%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(prefixBufTmp, prefixBufTmpRemainLen,
"%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(prefixBufTmp, prefixBufTmpRemainLen,
"[ %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(prefixBufTmp, prefixBufTmpRemainLen,
"%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 >= prefixBufTmpRemainLen)
prefixLen = prefixBufTmpRemainLen - 1;
if(suffixLen >= sizeof(suffixBuf))
suffixLen = sizeof(suffixBuf) - 1;
size_t suffixColorLen = 0;
char * suffixBufTmp = suffixBuf + suffixLen;
size_t suffixBufTmpRemainLen = sizeof(suffixBuf) - suffixLen;
if (p_format->colored_output == OUTPUT_COLOR_ON) {
suffixColorLen = snprintf(suffixBufTmp, suffixBufTmpRemainLen, "%c[%dm", 0x1B, 0);
if(suffixColorLen >= suffixBufTmpRemainLen)
suffixColorLen = suffixBufTmpRemainLen - 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 * (nsInfoLen + prefixColorLen + prefixLen + suffixLen + suffixColorLen)) + 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) {
if (nsInfoLen) {
strcat(p, nsInfoBuf);
p += nsInfoLen;
}
strcat(p, prefixBuf);
p += prefixColorLen + prefixLen;
strncat(p, entry->message, entry->messageLen);
p += entry->messageLen;
strcat(p, suffixBuf);
p += suffixLen + suffixColorLen;
} 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;
if (nsInfoLen) {
strcat(p, nsInfoBuf);
p += nsInfoLen;
}
strcat(p, prefixBuf);
p += prefixColorLen + prefixLen;
strncat(p, lineStart, lineLen);
p += lineLen;
strcat(p, suffixBuf);
p += suffixLen + suffixColorLen;
if (*pm == '\n') pm++;
}
}
if (p_outLength != NULL) {
*p_outLength = p - ret;
}
return ret;
}
char *android_log_formatLogLine (
AndroidLogFormat *p_format,
char *defaultBuffer,
size_t defaultBufferSize,
const AndroidLogEntry *entry,
size_t *p_outLength)
{
#if !defined(_WIN32)
struct tm tmBuf;
#endif
struct tm* ptm;
char timeBuf[64]; /* good margin, 23+nul for msec, 26+nul for usec */
char prefixBuf[128], suffixBuf[128];
char priChar;
int prefixSuffixIsHeaderFooter = 0;
char * ret = NULL;
priChar = filterPriToChar(entry->priority);
size_t prefixLen = 0, suffixLen = 0;
size_t len;
/*
* 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.
*
* The caller may have affected the timezone environment, this is
* expected to be sensitive to that.
*/
#if !defined(_WIN32)
ptm = localtime_r(&(entry->tv_sec), &tmBuf);
#else
ptm = localtime(&(entry->tv_sec));
#endif
strftime(timeBuf, sizeof(timeBuf),
&"%Y-%m-%d %H:%M:%S"[p_format->year_output ? 0 : 3],
ptm);
len = strlen(timeBuf);
if (p_format->usec_time_output) {
len += snprintf(timeBuf + len, sizeof(timeBuf) - len,
".%06ld", entry->tv_nsec / 1000);
} else {
len += snprintf(timeBuf + len, sizeof(timeBuf) - len,
".%03ld", entry->tv_nsec / 1000000);
}
if (p_format->zone_output) {
strftime(timeBuf + len, sizeof(timeBuf) - len, " %z", ptm);
}
/*
* Construct a buffer containing the log header and log message.
*/
if (p_format->colored_output) {
prefixLen = snprintf(prefixBuf, sizeof(prefixBuf), "\x1B[38;5;%dm",
colorFromPri(entry->priority));
prefixLen = MIN(prefixLen, sizeof(prefixBuf));
suffixLen = snprintf(suffixBuf, sizeof(suffixBuf), "\x1B[0m");
suffixLen = MIN(suffixLen, sizeof(suffixBuf));
}
switch (p_format->format) {
case FORMAT_TAG:
len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
"%c/%-8s: ", priChar, entry->tag);
strcpy(suffixBuf + suffixLen, "\n");
++suffixLen;
break;
case FORMAT_PROCESS:
len = snprintf(suffixBuf + suffixLen, sizeof(suffixBuf) - suffixLen,
" (%s)\n", entry->tag);
suffixLen += MIN(len, sizeof(suffixBuf) - suffixLen);
len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
"%c(%5d) ", priChar, entry->pid);
break;
case FORMAT_THREAD:
len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
"%c(%5d:%5d) ", priChar, entry->pid, entry->tid);
strcpy(suffixBuf + suffixLen, "\n");
++suffixLen;
break;
case FORMAT_RAW:
prefixBuf[prefixLen] = 0;
len = 0;
strcpy(suffixBuf + suffixLen, "\n");
++suffixLen;
break;
case FORMAT_TIME:
len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
"%s %c/%-8s(%5d): ", timeBuf, priChar, entry->tag, entry->pid);
strcpy(suffixBuf + suffixLen, "\n");
++suffixLen;
break;
case FORMAT_THREADTIME:
len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
"%s %5d %5d %c %-8s: ", timeBuf,
entry->pid, entry->tid, priChar, entry->tag);
strcpy(suffixBuf + suffixLen, "\n");
++suffixLen;
break;
case FORMAT_LONG:
len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
"[ %s %5d:%5d %c/%-8s ]\n",
timeBuf, entry->pid, entry->tid, priChar, entry->tag);
strcpy(suffixBuf + suffixLen, "\n\n");
suffixLen += 2;
prefixSuffixIsHeaderFooter = 1;
break;
case FORMAT_BRIEF:
default:
len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
"%c/%-8s(%5d): ", priChar, entry->tag, entry->pid);
strcpy(suffixBuf + suffixLen, "\n");
++suffixLen;
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)
*/
prefixLen += MIN(len, sizeof(prefixBuf) - prefixLen);
suffixLen = MIN(suffixLen, sizeof(suffixBuf));
/* the following code is tragically unreadable */
size_t numLines;
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)) + 1;
if (p_format->printable_output) {
/* Calculate extra length to convert non-printable to printable */
bufferSize += convertPrintable(NULL, entry->message, entry->messageLen);
} else {
bufferSize += entry->messageLen;
}
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;
if (p_format->printable_output) {
p += convertPrintable(p, entry->message, entry->messageLen);
} else {
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;
if (p_format->printable_output) {
p += convertPrintable(p, lineStart, lineLen);
} else {
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;
}
