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