60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
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/**
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* This file is part of the Fun programming language.
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* https://hanez.org/project/fun/
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*
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* Copyright 2025 Johannes Findeisen <you@hanez.org>
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* Licensed under the terms of the Apache-2.0 license.
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* https://opensource.org/license/apache-2-0
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*
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* Added: 2025-10-04
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*/
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#include <stdlib.h>
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#include <string.h>
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#ifdef __unix__
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <unistd.h>
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#endif
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case OP_SOCK_TCP_CONNECT: {
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/* Pops port, host; pushes fd (>0) or 0 */
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Value portv = pop_value(vm);
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Value hostv = pop_value(vm);
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int fd = 0;
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#ifdef __unix__
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if (hostv.type != VAL_STRING || portv.type != VAL_INT) {
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fprintf(stderr, "Runtime type error: tcp_connect expects (string host, int port)\n");
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free_value(portv);
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free_value(hostv);
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push_value(vm, make_int(0));
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break;
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}
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char *host = value_to_string_alloc(&hostv);
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int port = (int)portv.i;
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if (host) {
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char portstr[16];
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snprintf(portstr, sizeof(portstr), "%d", port);
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struct addrinfo hints, *res = NULL, *rp;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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if (getaddrinfo(host, portstr, &hints, &res) == 0) {
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for (rp = res; rp != NULL; rp = rp->ai_next) {
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int s = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
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if (s < 0) continue;
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if (connect(s, rp->ai_addr, rp->ai_addrlen) == 0) { fd = s; break; }
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close(s);
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}
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if (res) freeaddrinfo(res);
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}
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free(host);
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}
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#endif
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free_value(portv);
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free_value(hostv);
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push_value(vm, make_int(fd > 0 ? fd : 0));
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break;
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}
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