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m_cap: simplify cap_req, remove multiline

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Spec doesn't really allow multiline here, so don't use it
This commit is contained in:
Doug Freed 2020-11-06 22:57:40 +00:00
parent cbc31cce4d
commit 5d7273614b
1 changed files with 11 additions and 51 deletions
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62
modules/m_cap.c
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@ -302,16 +302,11 @@ cap_ls(struct Client *source_p, const char *arg)
static void
cap_req(struct Client *source_p, const char *arg)
{
static char buf_prefix[DATALEN + 1];
static char buf_list[2][DATALEN + 1];
const char *str_cont = " * :";
const char *str_final = " :";
int len_prefix;
int max_list;
char ack_buf[DATALEN+1];
struct CapabilityEntry *cap;
int i = 0;
int capadd = 0, capdel = 0;
int finished = 0, negate;
int ret;
hook_data_cap_change hdata;
if(!IsRegistered(source_p))
@ -320,21 +315,19 @@ cap_req(struct Client *source_p, const char *arg)
if(EmptyString(arg))
return;
buf_prefix[0] = '\0';
len_prefix = rb_snprintf_try_append(buf_prefix, sizeof(buf_prefix),
":%s CAP %s ACK",
me.name,
EmptyString(source_p->name) ? "*" : source_p->name);
ret = snprintf(ack_buf, sizeof ack_buf, ":%s CAP %s ACK :%s",
me.name, EmptyString(source_p->name)? "*" : source_p->name, arg);
buf_list[0][0] = '\0';
buf_list[1][0] = '\0';
max_list = sizeof(buf_prefix) - len_prefix - strlen(str_cont);
if (ret < 0 || ret > DATALEN)
{
sendto_one(source_p, ":%s CAP %s NAK :%s",
me.name, EmptyString(source_p->name) ? "*" : source_p->name, arg);
return;
}
for(cap = clicap_find(arg, &negate, &finished); cap;
cap = clicap_find(NULL, &negate, &finished))
{
const char *type;
if(negate)
{
if(HasCapabilityFlag(cap, CLICAP_FLAGS_STICKY))
@ -343,7 +336,6 @@ cap_req(struct Client *source_p, const char *arg)
break;
}
type = "-";
capdel |= (1 << cap->value);
}
else
@ -354,36 +346,9 @@ cap_req(struct Client *source_p, const char *arg)
break;
}
type = "";
capadd |= (1 << cap->value);
}
for (int attempts = 0; attempts < 2; attempts++) {
if (rb_snprintf_try_append(buf_list[i], max_list, "%s%s%s",
buf_list[i][0] == '\0' ? "" : " ", /* space between caps */
type,
cap->cap) < 0
&& buf_list[i][0] != '\0') {
if (!(source_p->flags & FLAGS_CLICAP_DATA)) {
/* the client doesn't support multiple lines */
break;
}
/* doesn't fit in the buffer, move to the next one */
if (i < 2) {
i++;
} else {
/* uh-oh */
break;
}
/* reset the buffer and go around the loop one more time */
buf_list[i][0] = '\0';
} else {
break;
}
}
}
if(!finished)
@ -393,12 +358,7 @@ cap_req(struct Client *source_p, const char *arg)
return;
}
if (i) {
sendto_one(source_p, "%s%s%s", buf_prefix, str_cont, buf_list[0]);
sendto_one(source_p, "%s%s%s", buf_prefix, str_final, buf_list[1]);
} else {
sendto_one(source_p, "%s%s%s", buf_prefix, str_final, buf_list[0]);
}
sendto_one(source_p, "%s", ack_buf);
hdata.client = source_p;
hdata.oldcaps = source_p->localClient->caps;