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quitmsg_is_split() updated to check that top-level domains must be 2+ chars

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and contain only alphabets.


git-svn-id: http://svn.irssi.org/repos/irssi/trunk@1878 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Timo Sirainen 2001-10-21 11:49:17 +00:00 committed by cras
parent feaee35653
commit 1b64509ae2
1 changed files with 23 additions and 8 deletions
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31
src/irc/core/netsplit.c
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@ -216,7 +216,7 @@ NICK_REC *netsplit_find_channel(IRC_SERVER_REC *server, const char *nick,
/* check if quit message is a netsplit message */
int quitmsg_is_split(const char *msg)
{
const char *host1, *host2;
const char *host1, *host2, *p;
int prev, len, host1_dot, host2_dot;
g_return_val_if_fail(msg != NULL, FALSE);
@ -224,15 +224,12 @@ int quitmsg_is_split(const char *msg)
/* NOTE: there used to be some paranoia checks (some older IRC
clients have even more), but they're pretty useless nowadays,
since IRC server prefixes the quit message with a space if it
looks like a quit message.
There also used to be a check that root domain was 2-3 characters
long. This doesn't work since undernet uses now "*.net *.split"
quit message for all netsplits, and then there's the new top level
domains which breaks that code too.
looks like a netsplit message.
So, the check is currently just:
- host1.domain1 host2.domain2
- top-level domains have to be 2+ characters long,
containing only alphabets
- only 1 space
- no double-dots (".." - probably useless check)
- hosts/domains can't start or end with a dot
@ -274,7 +271,25 @@ int quitmsg_is_split(const char *msg)
if (len == (int) (host2-host1)-1 &&
g_strncasecmp(host1, host2, len) == 0)
return FALSE; /* hosts can't be the same */
return FALSE; /* hosts can't be the same */
/* top-domain1 must be 2+ chars long and contain only alphabets */
p = host2-1;
while (p[-1] != '.') {
if (!isalpha(p[-1]))
return FALSE;
p--;
}
if (host2-p-1 < 2) return FALSE;
/* top-domain2 must be 2+ chars long and contain only alphabets */
p = host2+strlen(host2);
while (p[-1] != '.') {
if (!isalpha(p[-1]))
return FALSE;
p--;
}
if (strlen(p) < 2) return FALSE;
return TRUE;
}