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Enforce MAX_REASONLENGTH when reading ban.txt.

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toaster 2022-06-14 21:42:41 +01:00
parent 8addea0d45
commit cd6b1b2cd9
1 changed files with 16 additions and 3 deletions
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19
src/d_clisrv.c
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@ -2761,9 +2761,9 @@ static void Command_ClearBans(void)
void D_LoadBan(boolean warning) void D_LoadBan(boolean warning)
{ {
FILE *f; FILE *f;
size_t i; size_t i, j;
const char *address, *mask; char *address, *mask;
const char *username, *reason; char *username, *reason;
time_t unbanTime = NO_BAN_TIME; time_t unbanTime = NO_BAN_TIME;
char buffer[MAX_WADPATH]; char buffer[MAX_WADPATH];
boolean banmode = 0; boolean banmode = 0;
@ -2817,6 +2817,19 @@ void D_LoadBan(boolean warning)
reason = strtok(NULL, "\"\r\n"); // go until next " reason = strtok(NULL, "\"\r\n"); // go until next "
} }
// Enforce MAX_REASONLENGTH.
if (reason)
{
j = 0;
while (reason[j] != '\0')
{
if ((j++) < MAX_REASONLENGTH)
continue;
reason[j] = '\0';
break;
}
}
I_SetBanAddress(address, mask); I_SetBanAddress(address, mask);
if (I_SetUnbanTime) if (I_SetUnbanTime)