/*
* Process the data that server sent due to IMAP IDLE client request.
*/
int
response_idle(session *ssn, int tag)
{
regexp *re;
if (tag == -1)
return -1;
re = &responses[RESPONSE_IDLE];
do {
buffer_reset(&ibuf);
switch (receive_response(ssn, ibuf.data,
get_option_number("keepalive") * 60, 0)) {
case -1:
return -1;
break; /* NOTREACHED */
case 0:
return STATUS_TIMEOUT;
break; /* NOTREACHED */
}
verbose("S (%d): %s", ssn->socket, ibuf.data);
if (check_bye(ibuf.data))
return STATUS_BYE;
} while (regexec(re->preg, ibuf.data, re->nmatch, re->pmatch, 0));
return STATUS_UNTAGGED;
}
/*
* Get server data and make sure there is a continuation response inside them.
*/
int
response_continuation(session *ssn, int tag)
{
int r;
ssize_t n;
buffer_reset(&ibuf);
do {
buffer_check(&ibuf, ibuf.len + INPUT_BUF);
if ((n = receive_response(ssn, ibuf.data + ibuf.len, 0, 1)) ==
-1)
return -1;
ibuf.len += n;
if (check_bye(ibuf.data))
return STATUS_BYE;
} while ((r = check_tag(ibuf.data, ssn, tag)) == STATUS_NONE &&
!check_continuation(ibuf.data));
if (r == STATUS_NO &&
(check_trycreate(ibuf.data) || get_option_boolean("create")))
return STATUS_TRYCREATE;
if (r == STATUS_NONE)
return STATUS_CONTINUE;
return r;
}
/*
* Process the data that server sent due to IMAP FETCH BODY[] client request,
* ie. FETCH BODY[HEADER], FETCH BODY[TEXT], FETCH BODY[HEADER.FIELDS
* (<fields>)], FETCH BODY[<part>].
*/
int
response_fetchbody(session *ssn, int tag, char **body, size_t *len)
{
int r, match;
unsigned int offset;
ssize_t n;
regexp *re;
if (tag == -1)
return -1;
buffer_reset(&ibuf);
match = -1;
offset = 0;
re = &responses[RESPONSE_FETCH_BODY];
do {
buffer_check(&ibuf, ibuf.len + INPUT_BUF);
if ((n = receive_response(ssn, ibuf.data + ibuf.len, 0, 1)) ==
-1)
return -1;
ibuf.len += n;
if (match != 0) {
match = regexec(re->preg, ibuf.data, re->nmatch,
re->pmatch, 0);
if (match == 0 && re->pmatch[2].rm_so != -1 &&
re->pmatch[2].rm_eo != -1) {
*len = strtoul(ibuf.data + re->pmatch[2].rm_so,
NULL, 10);
offset = re->pmatch[0].rm_eo + *len;
}
}
if (offset != 0 && ibuf.len >= offset) {
if (check_bye(ibuf.data + offset))
return STATUS_BYE;
}
} while (ibuf.len < offset || (r = check_tag(ibuf.data + offset, ssn,
tag)) == STATUS_NONE);
if (match == 0) {
if (re->pmatch[2].rm_so != -1 &&
re->pmatch[2].rm_eo != -1) {
*body = ibuf.data + re->pmatch[0].rm_eo;
} else {
*body = ibuf.data + re->pmatch[3].rm_so;
*len = re->pmatch[3].rm_eo - re->pmatch[3].rm_so;
}
}
return r;
}
/*
* Process the greeting that server sends during connection.
*/
int
response_greeting(session *ssn)
{
buffer_reset(&ibuf);
if (receive_response(ssn, ibuf.data, 0, 1) == -1)
return -1;
verbose("S (%d): %s", ssn->socket, ibuf.data);
if (check_bye(ibuf.data))
return STATUS_BYE;
if (check_preauth(ibuf.data))
return STATUS_PREAUTH;
return STATUS_NONE;
}
/*
* Process the greeting that server sends during connection.
*/
int
response_greeting(session *ssn)
{
buffer_reset(&ibuf);
if (receive_response(ssn, ibuf.data) == -1)
return -1;
if (check_bye(ibuf.data))
return -1;
verbose("S (%d): %s", ssn->socket, ibuf.data);
if (xstrcasestr(ibuf.data, "* PREAUTH"))
return STATUS_RESPONSE_PREAUTH;
return STATUS_RESPONSE_NONE;
}
