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core: fix compiler warning on possible buffer overflow in function util_parse_time (issue #2289)

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This commit is contained in:
Sébastien Helleu
2025-11-30 11:21:42 +01:00
parent 2534976281
commit a76bfb1f26
1 changed files with 9 additions and 7 deletions
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src/core/core-util.c
+9 -7
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@@ -417,7 +417,7 @@ int
util_parse_time (const char *datetime, struct timeval *tv)
{
char *string, *pos, *pos2, *pos_colon, *pos_hyphen, *pos_dot;
char str_usec[16], *error, str_date[128], str_date2[256];
char str_usec[16], *error, str_date[128];
struct tm tm_date, tm_date_gm, tm_date_local, *local_time;
time_t time_now, time_gm, time_local;
long long value;
@@ -441,21 +441,23 @@ util_parse_time (const char *datetime, struct timeval *tv)
if (pos_colon && !pos_hyphen)
{
/* add current date: "19:04:55" -> "2025-08-30T19:04:55" */
string = malloc (strlen (datetime) + 16 + 1);
if (!string)
return 0;
time_now = time (NULL);
local_time = localtime (&time_now);
strftime (str_date, sizeof (str_date), "%Y-%m-%dT", local_time);
snprintf (string, sizeof (str_date2), "%s%s", str_date, datetime);
length = strlen (str_date) + strlen (datetime) + 1;
string = malloc (length);
if (!string)
return 0;
snprintf (string, length, "%s%s", str_date, datetime);
}
else if (!pos_colon && pos_hyphen && (!pos_dot || (pos_hyphen < pos_dot)))
{
/* add time (midnight): "2025-08-30" -> "2025-08-30T00:00:00" */
string = malloc (strlen (datetime) + 16 + 1);
length = strlen (datetime) + 9 + 1;
string = malloc (length);
if (!string)
return 0;
snprintf (string, sizeof (str_date2), "%sT00:00:00", datetime);
snprintf (string, length, "%sT00:00:00", datetime);
}
else
{