static struct io_plan *write_json(struct io_conn *conn,
struct json_connection *jcon)
{
struct json_output *out;
out = list_pop(&jcon->output, struct json_output, list);
if (!out) {
if (jcon->stop) {
log_unusual(jcon->log, "JSON-RPC shutdown");
/* Return us to toplevel lightningd.c */
io_break(jcon->dstate);
return io_close(conn);
}
/* Reader can go again now. */
io_wake(jcon);
return io_out_wait(conn, jcon, write_json, jcon);
}
jcon->outbuf = tal_steal(jcon, out->json);
tal_free(out);
log_io(jcon->log, false, jcon->outbuf, strlen(jcon->outbuf));
return io_write(conn,
jcon->outbuf, strlen(jcon->outbuf), write_json, jcon);
}
static void complete(struct pfiled *pfiled, struct io *io)
{
struct xseg_request *req = io->req;
req->state |= XS_SERVED;
if (cmdline_verbose)
log_io("complete", io);
xport p = xseg_respond(pfiled->xseg, req, pfiled->portno, X_ALLOC);
xseg_signal(pfiled->xseg, p);
__sync_fetch_and_sub(&pfiled->fdcache[io->fdcacheidx].ref, 1);
}
static struct io_plan *read_json(struct io_conn *conn,
struct json_connection *jcon)
{
jsmntok_t *toks;
bool valid;
log_io(jcon->log, true, jcon->buffer + jcon->used, jcon->len_read);
/* Resize larger if we're full. */
jcon->used += jcon->len_read;
if (jcon->used == tal_count(jcon->buffer))
tal_resize(&jcon->buffer, jcon->used * 2);
again:
toks = json_parse_input(jcon->buffer, jcon->used, &valid);
if (!toks) {
if (!valid) {
log_unusual(jcon->dstate->base_log,
"Invalid token in json input: '%.*s'",
(int)jcon->used, jcon->buffer);
return io_close(conn);
}
/* We need more. */
goto read_more;
}
/* Empty buffer? (eg. just whitespace). */
if (tal_count(toks) == 1) {
jcon->used = 0;
goto read_more;
}
parse_request(jcon, toks);
/* Remove first {}. */
memmove(jcon->buffer, jcon->buffer + toks[0].end,
tal_count(jcon->buffer) - toks[0].end);
jcon->used -= toks[0].end;
tal_free(toks);
/* Need to wait for command to finish? */
if (jcon->current) {
jcon->len_read = 0;
return io_wait(conn, jcon, read_json, jcon);
}
/* See if we can parse the rest. */
goto again;
read_more:
tal_free(toks);
return io_read_partial(conn, jcon->buffer + jcon->used,
tal_count(jcon->buffer) - jcon->used,
&jcon->len_read, read_json, jcon);
}
/* Returns '\n' if it was seen, else '\0'. Trims at first '\r' or '\n' */
static char fgets_and_trim(FILE *fp)
{
char c;
char *buf_ptr;
if (fgets(G.wget_buf, sizeof(G.wget_buf) - 1, fp) == NULL)
bb_perror_msg_and_die("error getting response");
buf_ptr = strchrnul(G.wget_buf, '\n');
c = *buf_ptr;
*buf_ptr = '\0';
buf_ptr = strchrnul(G.wget_buf, '\r');
*buf_ptr = '\0';
log_io("< %s", G.wget_buf);
return c;
}
static int ftpcmd(const char *s1, const char *s2, FILE *fp)
{
int result;
if (s1) {
if (!s2)
s2 = "";
fprintf(fp, "%s%s\r\n", s1, s2);
fflush(fp);
log_io("> %s%s", s1, s2);
}
do {
fgets_and_trim(fp);
} while (!isdigit(G.wget_buf[0]) || G.wget_buf[3] != ' ');
G.wget_buf[3] = '\0';
result = xatoi_positive(G.wget_buf);
G.wget_buf[3] = ' ';
return result;
}
