commando.html5/node_modules/lnsocket/lnrpc.c

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2.3 KiB
C
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2023-03-10 17:36:16 +00:00
#include <stdlib.h>
#include "lnsocket.h"
#include "endian.h"
#include "typedefs.h"
#include "commando.h"
#include <stdio.h>
#include <assert.h>
#include <sys/select.h>
int usage()
{
printf("lnrpc <nodeid> <ip/hostname> <rune> <method> [params (json string)]\n\n");
printf("currently supports commando for clightning, but potentially more rpc types in the future!\n");
return 0;
}
int main(int argc, const char *argv[])
{
static u8 msgbuf[4096];
u8 *buf;
struct lnsocket *ln;
fd_set set;
struct timeval timeout = {0};
char *timeout_str;
u16 len, msgtype;
int ok = 1;
int socket, rv;
int verbose = getenv("VERBOSE") != 0;
//int verbose = 1;
timeout_str = getenv("LNRPC_TIMEOUT");
int timeout_ms = timeout_str ? atoi(timeout_str) : 5000;
timeout.tv_sec = timeout_ms / 1000;
timeout.tv_usec = (timeout_ms % 1000) * 1000;
FD_ZERO(&set); /* clear the set */
if (argc < 5)
return usage();
ln = lnsocket_create();
assert(ln);
lnsocket_genkey(ln);
const char *nodeid = argv[1];
const char *host = argv[2];
const char *rune = argv[3];
const char *method = argv[4];
const char *params = argc < 7 ? argv[5] : NULL;
if (!(ok = lnsocket_connect(ln, nodeid, host)))
goto done;
if (!(ok = lnsocket_fd(ln, &socket)))
goto done;
FD_SET(socket, &set); /* add our file descriptor to the set */
if (!(ok = lnsocket_perform_init(ln)))
goto done;
if (verbose)
fprintf(stderr, "init success\n");
if (!(ok = len = commando_make_rpc_msg(method, params, rune, 1, msgbuf, sizeof(msgbuf))))
goto done;
if (!(ok = lnsocket_write(ln, msgbuf, len)))
goto done;
if (verbose)
fprintf(stderr, "waiting for response...\n");
while (1) {
rv = select(socket + 1, &set, NULL, NULL, &timeout);
if (rv == -1) {
perror("select");
ok = 0;
goto done;
} else if (rv == 0) {
fprintf(stderr, "error: rpc request timeout\n");
ok = 0;
goto done;
}
if (!(ok = lnsocket_recv(ln, &msgtype, &buf, &len)))
goto done;
switch (msgtype) {
case COMMANDO_REPLY_TERM:
printf("%.*s\n", len - 8, buf + 8);
goto done;
case COMMANDO_REPLY_CONTINUES:
printf("%.*s", len - 8, buf + 8);
continue;
default:
// ignore extra interleaved messages which can happen
continue;
}
}
done:
lnsocket_print_errors(ln);
lnsocket_destroy(ln);
return !ok;
}