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Rewrite perm xlines containing '",' from local opers (to '"\,').

Browse source 
The change also applies to xlines sent to other servers.
Note that the backslash must be supplied in an unxline.
Incoming xlines containing '",' are rejected to avoid
inconsistency between servers.
This commit is contained in:
Jilles Tjoelker 2009-05-08 14:42:55 +02:00
parent cc169c9476
commit d69601a5e2
1 changed files with 49 additions and 6 deletions
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55
modules/m_xline.c
View file

@ -70,6 +70,7 @@ struct Message unxline_msgtab = {
mapi_clist_av1 xline_clist[] = { &xline_msgtab, &unxline_msgtab, NULL };
DECLARE_MODULE_AV1(xline, NULL, NULL, xline_clist, NULL, NULL, "$Revision: 3161 $");
static char *escape_perm_xline(const char *);
static int valid_xline(struct Client *, const char *, const char *, int);
static void apply_xline(struct Client *client_p, const char *name,
const char *reason, int temp_time);
@ -99,6 +100,7 @@ mo_xline(struct Client *client_p, struct Client *source_p, int parc, const char
{
struct ConfItem *aconf;
const char *name;
char *escapedname;
const char *reason;
const char *target_server = NULL;
int temp_time;
@ -143,28 +145,46 @@ mo_xline(struct Client *client_p, struct Client *source_p, int parc, const char
reason = parv[loc];
if (temp_time == 0)
{
escapedname = escape_perm_xline(name);
if (strcmp(escapedname, name))
sendto_one_notice(source_p, ":Changed xline from [%s] to [%s]",
name, escapedname);
}
else
escapedname = rb_strdup(name);
if(target_server != NULL)
{
propagate_xline(source_p, target_server, temp_time,
name, "2", reason);
escapedname, "2", reason);
if(!match(target_server, me.name))
{
rb_free(escapedname);
return 0;
}
}
else if(rb_dlink_list_length(&cluster_conf_list) > 0)
cluster_xline(source_p, temp_time, name, reason);
cluster_xline(source_p, temp_time, escapedname, reason);
if((aconf = find_xline_mask(name)) != NULL)
if((aconf = find_xline_mask(escapedname)) != NULL)
{
sendto_one(source_p, ":%s NOTICE %s :[%s] already X-Lined by [%s] - %s",
me.name, source_p->name, name, aconf->name, aconf->passwd);
me.name, source_p->name, escapedname, aconf->name, aconf->passwd);
rb_free(escapedname);
return 0;
}
if(!valid_xline(source_p, name, reason, temp_time))
if(!valid_xline(source_p, escapedname, reason, temp_time))
{
rb_free(escapedname);
return 0;
}
apply_xline(source_p, name, reason, temp_time);
apply_xline(source_p, escapedname, reason, temp_time);
rb_free(escapedname);
return 0;
}
@ -227,6 +247,29 @@ handle_remote_xline(struct Client *source_p, int temp_time,
apply_xline(source_p, name, reason, temp_time);
}
/* escape_perm_xline()
*
* inputs - gecos
* outputs - escaped gecos (allocated with rb_malloc())
* side effects - none
*/
static char *
escape_perm_xline(const char *gecos)
{
char *result;
int i, j;
result = rb_malloc(2 * strlen(gecos) + 1);
for (i = 0, j = 0; gecos[i] != '\0'; i++)
{
result[j++] = gecos[i];
if (gecos[i] == '"' && gecos[i + 1] == ',')
result[j++] = '\\';
}
result[j] = '\0';
return result;
}
/* valid_xline()
*
* inputs - client xlining, gecos, reason and temp time