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webirc: Check validity of given IP.

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This commit is contained in:
Jilles Tjoelker 2014-02-23 21:14:09 +01:00
parent a5de4edefd
commit 0391874cc7
1 changed files with 20 additions and 4 deletions
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22
extensions/m_webirc.c
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@ -77,8 +77,11 @@ mr_webirc(struct Client *client_p, struct Client *source_p, int parc, const char
{
struct ConfItem *aconf;
const char *encr;
struct rb_sockaddr_storage addr;
if (!strchr(parv[4], '.') && !strchr(parv[4], ':'))
if ((!strchr(parv[4], '.') && !strchr(parv[4], ':')) ||
strlen(parv[4]) + (*parv[4] == ':') >=
sizeof(source_p->sockhost))
{
sendto_one(source_p, "NOTICE * :Invalid IP");
return 0;
@ -116,15 +119,28 @@ mr_webirc(struct Client *client_p, struct Client *source_p, int parc, const char
return 0;
}
if (rb_inet_pton_sock(parv[4], (struct sockaddr *)&addr) <= 0)
{
sendto_one(source_p, "NOTICE * :Invalid IP");
return 0;
}
rb_strlcpy(source_p->sockhost, parv[4], sizeof(source_p->sockhost));
if (*parv[4] == ':')
{
source_p->sockhost[0] = '0';
rb_strlcpy(source_p->sockhost + 1, parv[4],
sizeof(source_p->sockhost) - 1);
}
else
rb_strlcpy(source_p->sockhost, parv[4],
sizeof(source_p->sockhost));
if(strlen(parv[3]) <= HOSTLEN)
rb_strlcpy(source_p->host, parv[3], sizeof(source_p->host));
else
rb_strlcpy(source_p->host, source_p->sockhost, sizeof(source_p->host));
rb_inet_pton_sock(parv[4], (struct sockaddr *)&source_p->localClient->ip);
source_p->localClient->ip = addr;
/* Check dlines now, klines will be checked on registration */
if((aconf = find_dline((struct sockaddr *)&source_p->localClient->ip,