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trace2: tolerate failed timestamp formatting #2178

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trace2: tolerate failed timestamp formatting #2178

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49 changes: 34 additions & 15 deletions trace2/tr2_tbuf.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3,45 +3,64 @@

void tr2_tbuf_local_time(struct tr2_tbuf *tb)
{
struct timeval tv;
struct tm tm;
struct timeval tv = { 0 };
struct tm tm = { 0 };
time_t secs;
int len;

gettimeofday(&tv, NULL);
secs = tv.tv_sec;
localtime_r(&secs, &tm);

xsnprintf(tb->buf, sizeof(tb->buf), "%02d:%02d:%02d.%06ld", tm.tm_hour,
tm.tm_min, tm.tm_sec, (long)tv.tv_usec);
len = snprintf(tb->buf, sizeof(tb->buf), "%02d:%02d:%02d.%06ld",
tm.tm_hour, tm.tm_min, tm.tm_sec, (long)tv.tv_usec);

if (len < 0 || (size_t)len >= sizeof(tb->buf)) {
const char *blank = "00:00:00.000000";
strlcpy(tb->buf, blank, sizeof(tb->buf));
}
}

void tr2_tbuf_utc_datetime_extended(struct tr2_tbuf *tb)
{
struct timeval tv;
struct tm tm;
struct timeval tv = { 0 };
struct tm tm = { 0 };
time_t secs;
int len;

gettimeofday(&tv, NULL);
secs = tv.tv_sec;
gmtime_r(&secs, &tm);

xsnprintf(tb->buf, sizeof(tb->buf),
"%4d-%02d-%02dT%02d:%02d:%02d.%06ldZ", tm.tm_year + 1900,
tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec,
(long)tv.tv_usec);
len = snprintf(tb->buf, sizeof(tb->buf),
"%4d-%02d-%02dT%02d:%02d:%02d.%06ldZ",
tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec, (long)tv.tv_usec);

if (len < 0 || (size_t)len >= sizeof(tb->buf)) {
const char *blank = "1900-00-00T00:00:00.000000Z";
strlcpy(tb->buf, blank, sizeof(tb->buf));
}
}

void tr2_tbuf_utc_datetime(struct tr2_tbuf *tb)
{
struct timeval tv;
struct tm tm;
struct timeval tv = { 0 };
struct tm tm = { 0 };
time_t secs;
int len;

gettimeofday(&tv, NULL);
secs = tv.tv_sec;
gmtime_r(&secs, &tm);

xsnprintf(tb->buf, sizeof(tb->buf), "%4d%02d%02dT%02d%02d%02d.%06ldZ",
tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour,
tm.tm_min, tm.tm_sec, (long)tv.tv_usec);
len = snprintf(tb->buf, sizeof(tb->buf),
"%4d%02d%02dT%02d%02d%02d.%06ldZ",
tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec, (long)tv.tv_usec);

if (len < 0 || (size_t)len >= sizeof(tb->buf)) {
const char *blank = "19000000T000000.000000Z";
strlcpy(tb->buf, blank, sizeof(tb->buf));
}
}
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