diff --git a/examples/http_client.js b/examples/http_client.js new file mode 100644 index 0000000..1cd9e1b --- /dev/null +++ b/examples/http_client.js @@ -0,0 +1,18 @@ +#!/usr/bin/env qjs +///@ts-check +/// +/// +import * as os from "os"; +/** @template T @param {os.Result} result */ +function must(result) { + if (typeof result === "number" && result < 0) throw result; + return /** @type {T} */ (result) +} + +const sockfd = must(os.socket(os.AF_INET, os.SOCK_STREAM)); +await os.connect(sockfd, os.getaddrinfo("bellard.org",'80')[0]); +const httpReq = ["GET / HTTP/1.0", "", ""].join('\r\n') +must(await os.send(sockfd, Uint8Array.from(httpReq, c => c.charCodeAt(0)).buffer) > 0); +const chunk = new Uint8Array(512); +const recvd = await os.recv(sockfd, chunk.buffer); +console.log([...chunk.slice(0,recvd)].map(c => String.fromCharCode(c)).join('')); diff --git a/examples/http_server.js b/examples/http_server.js new file mode 100755 index 0000000..e2d0899 --- /dev/null +++ b/examples/http_server.js @@ -0,0 +1,94 @@ +#!/usr/bin/env qjs +///@ts-check +/// +/// +import * as os from "os"; + +const MIMES = new Map([ + ['html', 'text/html'], + ['txt', 'text/plain'], + ['css', 'text/css'], + ['c', 'text/plain'], + ['h', 'text/plain'], + ['json', 'application/json'], + ['mjs', 'application/javascript'], + ['js', 'application/javascript'], + ['', 'application/octet-stream'], +]); +/** @template T @param {os.Result} result */ +function must(result) { + if (typeof result === "number" && result < 0) throw result; + return /** @type {T} */ (result) +} +/**@param {os.FileDescriptor} fd */ +async function* recvLines(fd) { + const chunk = new Uint8Array(1); + let line = ''; + while (await os.recv(fd, chunk.buffer) > 0) { + const char = String.fromCharCode(...chunk); + if (char == '\n') { + yield line; + line = ''; + } else line += char; + } + if (line) yield line; +} +/** @param {os.FileDescriptor} fd @param {string[]} lines */ +function sendLines(fd, lines) { + const buf = Uint8Array.from(lines.join('\r\n'), c => c.charCodeAt(0)); + return os.send(fd, buf.buffer); +} +//USAGE: qjs http_server.js [PORT=8080 [HOST=localhost]] +const [port = "8080", host = "localhost"] = scriptArgs.slice(1); +const [ai] = os.getaddrinfo(host, port); +//if (!ai.length) throw `Unable to getaddrinfo(${host}, ${port})`; +const sock_srv = must(os.socket(os.AF_INET, os.SOCK_STREAM)); +must(os.setsockopt(sock_srv, os.SO_REUSEADDR, new Uint32Array([1]).buffer)); +must(os.bind(sock_srv, ai)); +must(os.listen(sock_srv)); +//os.signal(os.SIGINT, ()=>os.close(sock_srv)); // don't work +console.log(`Listening on http://${host}:${port} (${ai.addr}:${ai.port}) ...`); +const openCmd = { linux: "xdg-open", darwin: "open", win32: "start" }[os.platform]; +if (openCmd) os.exec([openCmd, `http://${host}:${port}`]); +while (true) { // TODO: break on SIG* + const [sock_cli] = await os.accept(sock_srv); + + const lines = recvLines(sock_cli); + const [method, path, http_ver] = ((await lines.next()).value || '').split(' '); + let safe_path = '.' + path.replaceAll(/\.+/g, '.'); // may += index.html later + console.log(method, safe_path, http_ver); + + const headers = new Map() + for await (const line of lines) { + const header = line.trimEnd(); + if (!header) break; + const sepIdx = header.indexOf(': '); + headers.set(header.slice(0, sepIdx), header.slice(sepIdx + 2)); + } + + let [obj, err] = os.stat(safe_path); + if (obj?.mode & os.S_IFDIR && safe_path.endsWith('/') && os.stat(safe_path + 'index.html')[0]) { + safe_path += 'index.html'; + [obj, err] = os.stat(safe_path); + } + if (err) { + await sendLines(sock_cli, ['HTTP/1.1 404', '', safe_path, 'errno:' + err]) + } else if (obj?.mode & os.S_IFDIR) { + if (!safe_path.endsWith('/')) + await sendLines(sock_cli, ['HTTP/1.1 301', `Location: ${safe_path}/`, '']); + else + await sendLines(sock_cli, ['HTTP/1.1 200', 'Content-Type: text/html', '', + os.readdir(safe_path)[0]?.filter(e => e[0] != '.').map(e => `
  • ${e}
    • `).join('') + ]); + } else { + const mime = MIMES.get(safe_path.split('.').at(-1) || '') || MIMES.get(''); + await sendLines(sock_cli, ['HTTP/1.1 200', `Content-Type: ${mime}`, '', '']); + const fd = must(os.open(safe_path)); + const fbuf = new Uint8Array(4096); + for (let got = 0; (got = os.read(fd, fbuf.buffer, 0, fbuf.byteLength)) > 0;) { + await os.send(sock_cli, fbuf.buffer, got); + } + } + + os.close(sock_cli); +} diff --git a/quickjs-libc.c b/quickjs-libc.c index ca8e359..95163e7 100644 --- a/quickjs-libc.c +++ b/quickjs-libc.c @@ -41,11 +41,18 @@ #include #include #include +#include #else #include #include #include #include +#include +#include +#include +#include +#include +#include #if defined(__FreeBSD__) extern char **environ; @@ -80,16 +87,34 @@ typedef sig_t sighandler_t; #define PATH_MAX 4096 #endif -/* TODO: - - add socket calls -*/ +typedef enum { + MAGIC_SOCKET_RECV, + MAGIC_SOCKET_SEND, + MAGIC_SOCKET_RECVFROM, + MAGIC_SOCKET_SENDTO, + MAGIC_SOCKET_CONNECT, + MAGIC_SOCKET_ACCEPT, +} MagicSocket; typedef struct { struct list_head link; int fd; - JSValue rw_func[2]; + JSValue r_func; + JSValue w_func; } JSOSRWHandler; +typedef struct { + struct list_head link; + int sockfd; + MagicSocket magic; + uint64_t length; + uint8_t* buffer; + JSValue bufval; + struct sockaddr_storage sockaddr; // for sendto() + JSValue resolve; + JSValue reject; +} JSOSSockHandler; + typedef struct { struct list_head link; int sig_num; @@ -144,6 +169,7 @@ typedef struct { typedef struct JSThreadState { struct list_head os_rw_handlers; /* list of JSOSRWHandler.link */ + struct list_head os_sock_handlers; /* list of JSOSSockHandler.link */ struct list_head os_signal_handlers; /* list JSOSSignalHandler.link */ struct list_head os_timers; /* list of JSOSTimer.link */ struct list_head port_list; /* list of JSWorkerMessageHandler.link */ @@ -167,6 +193,91 @@ static BOOL my_isdigit(int c) return (c >= '0' && c <= '9'); } + +static int JS_ToSockaddrStruct(JSContext *ctx, JSValue addr, + struct sockaddr_storage *sockaddr, uint32_t sockfd) +{ + JSValue val; + const char *addr_str; + uint32_t port, family; + int ret; + + val = JS_GetPropertyStr(ctx, addr, "family"); + if (JS_IsException(val)) + return -1; + if (JS_IsUndefined(val)) { // get from sockfd when no .family given + struct sockaddr_storage saddr; + socklen_t len = sizeof(saddr); + if (getsockname(sockfd, (struct sockaddr *)&saddr, &len) != -1) { + family = saddr.ss_family; + } else { + family = AF_INET; + } + } else if (JS_ToUint32(ctx, &family, val)) + return -1; + sockaddr->ss_family = family; + JS_FreeValue(ctx, val); + + val = JS_GetPropertyStr(ctx, addr, "addr"); + if (JS_IsException(val)) + return -1; + addr_str = JS_ToCString(ctx, val); + if (!addr_str) + return -1; + void* sin_addr = family == AF_INET ? + (void*)&(((struct sockaddr_in *)sockaddr)->sin_addr): + (void*)&(((struct sockaddr_in6 *)sockaddr)->sin6_addr); + ret = inet_pton(sockaddr->ss_family, addr_str, sin_addr); + JS_FreeCString(ctx, addr_str); + JS_FreeValue(ctx, val); + if (ret != 1) + return -1; + + val = JS_GetPropertyStr(ctx, addr, "port"); + ret = JS_ToUint32(ctx, &port, val); + JS_FreeValue(ctx, val); + if (ret) + return -1; + if (family == AF_INET) + ((struct sockaddr_in *)sockaddr)->sin_port = htons(port); + if (family == AF_INET6) + ((struct sockaddr_in6 *)sockaddr)->sin6_port = htons(port); + + return 0; +} + +static JSValue JS_ToSockaddrObj(JSContext *ctx, struct sockaddr_storage *sockaddr) +{ + JSValue obj, prop; + char ip_str[INET_ADDRSTRLEN]; + const char *ip_ptr; + struct sockaddr_in *sockaddr4 = (struct sockaddr_in *)sockaddr; + struct sockaddr_in6 *sockaddr6 = (struct sockaddr_in6 *)sockaddr; + + obj = JS_NewObject(ctx); + if (JS_IsException(obj)) + goto fail; + + prop = JS_NewUint32(ctx, sockaddr->ss_family); + JS_DefinePropertyValueStr(ctx, obj, "family", prop, JS_PROP_C_W_E); + + uint16_t sin_port = sockaddr->ss_family == AF_INET ? sockaddr4->sin_port : + sockaddr->ss_family == AF_INET6 ? sockaddr6->sin6_port : 0; + prop = JS_NewUint32(ctx, ntohs(sin_port)); + JS_DefinePropertyValueStr(ctx, obj, "port", prop, JS_PROP_C_W_E); + + void* sin_addr = sockaddr->ss_family == AF_INET ? (void*)&sockaddr4->sin_addr : + sockaddr->ss_family == AF_INET6 ? (void*)&sockaddr6->sin6_addr : NULL; + ip_ptr = inet_ntop(AF_INET, sin_addr, ip_str, sizeof(ip_str)); + prop = ip_ptr ? JS_NewString(ctx, ip_ptr) : JS_NULL; + JS_DefinePropertyValueStr(ctx, obj, "addr", prop, JS_PROP_C_W_E); + return obj; + + fail: + JS_FreeValue(ctx, obj); + return JS_EXCEPTION; +} + /* XXX: use 'o' and 'O' for object using JS_PrintValue() ? */ static JSValue js_printf_internal(JSContext *ctx, int argc, JSValueConst *argv, FILE *fp) @@ -1614,6 +1725,9 @@ static const JSCFunctionListEntry js_std_error_props[] = { DEF(EPERM), DEF(EPIPE), DEF(EBADF), + DEF(EAGAIN), + DEF(EINPROGRESS), + DEF(EWOULDBLOCK), #undef DEF }; @@ -1671,6 +1785,11 @@ static int js_std_init(JSContext *ctx, JSModuleDef *m) { JSValue proto; + #if defined(_WIN32) + WSADATA wsa_data; + WSAStartup(0x0202, &wsa_data); + #endif + /* FILE class */ /* the class ID is created once */ JS_NewClassID(&js_std_file_class_id); @@ -1976,20 +2095,27 @@ static JSOSRWHandler *find_rh(JSThreadState *ts, int fd) static void free_rw_handler(JSRuntime *rt, JSOSRWHandler *rh) { - int i; list_del(&rh->link); - for(i = 0; i < 2; i++) { - JS_FreeValueRT(rt, rh->rw_func[i]); - } + JS_FreeValueRT(rt, rh->r_func); + JS_FreeValueRT(rt, rh->w_func); js_free_rt(rt, rh); } -static JSValue js_os_setReadHandler(JSContext *ctx, JSValueConst this_val, +static void free_sock_handler(JSRuntime *rt, JSOSSockHandler *sh) +{ + list_del(&sh->link); + JS_FreeValueRT(rt, sh->resolve); + JS_FreeValueRT(rt, sh->reject); + js_free_rt(rt, sh); +} + +static JSValue js_os_setReadWriteHandler(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic) { JSRuntime *rt = JS_GetRuntime(ctx); JSThreadState *ts = JS_GetRuntimeOpaque(rt); JSOSRWHandler *rh; + BOOL isRead = magic == 0; int fd; JSValueConst func; @@ -1999,10 +2125,10 @@ static JSValue js_os_setReadHandler(JSContext *ctx, JSValueConst this_val, if (JS_IsNull(func)) { rh = find_rh(ts, fd); if (rh) { - JS_FreeValue(ctx, rh->rw_func[magic]); - rh->rw_func[magic] = JS_NULL; - if (JS_IsNull(rh->rw_func[0]) && - JS_IsNull(rh->rw_func[1])) { + JSValue* rwfunc = isRead ? &rh->r_func : &rh->w_func; + JS_FreeValue(ctx, *rwfunc); + *rwfunc = JS_NULL; + if (JS_IsNull(rh->r_func) && JS_IsNull(rh->w_func)) { /* remove the entry */ free_rw_handler(JS_GetRuntime(ctx), rh); } @@ -2016,12 +2142,13 @@ static JSValue js_os_setReadHandler(JSContext *ctx, JSValueConst this_val, if (!rh) return JS_EXCEPTION; rh->fd = fd; - rh->rw_func[0] = JS_NULL; - rh->rw_func[1] = JS_NULL; + rh->r_func = JS_NULL; + rh->w_func = JS_NULL; list_add_tail(&rh->link, &ts->os_rw_handlers); } - JS_FreeValue(ctx, rh->rw_func[magic]); - rh->rw_func[magic] = JS_DupValue(ctx, func); + JSValue* rwfunc = isRead ? &rh->r_func : &rh->w_func; + JS_FreeValue(ctx, *rwfunc); + *rwfunc = JS_DupValue(ctx, func); } return JS_UNDEFINED; } @@ -2327,8 +2454,7 @@ static void js_waker_close(JSWaker *w) static void js_free_message(JSWorkerMessage *msg); /* return 1 if a message was handled, 0 if no message */ -static int handle_posted_message(JSRuntime *rt, JSContext *ctx, - JSWorkerMessageHandler *port) +static int handle_posted_message(JSContext *ctx, JSWorkerMessageHandler *port) { JSWorkerMessagePipe *ps = port->recv_pipe; int ret; @@ -2383,13 +2509,72 @@ static int handle_posted_message(JSRuntime *rt, JSContext *ctx, return ret; } #else -static int handle_posted_message(JSRuntime *rt, JSContext *ctx, - JSWorkerMessageHandler *port) +static int handle_posted_message(JSContext *ctx, JSWorkerMessageHandler *port) { return 0; } #endif /* !USE_WORKER */ +static void handle_socket_message(JSContext *ctx, JSOSSockHandler *sh) +{ + int err = 0; + struct sockaddr_storage sockaddr; + socklen_t addr_len = sizeof(sockaddr); + socklen_t len = sizeof(err); + if (sh->magic == MAGIC_SOCKET_RECV) { + err = js_get_errno(recv(sh->sockfd, sh->buffer, sh->length, 0)); + } else if (sh->magic == MAGIC_SOCKET_SEND) { + err = js_get_errno(send(sh->sockfd, sh->buffer, sh->length, 0)); + } else if (sh->magic == MAGIC_SOCKET_RECVFROM) { + err = js_get_errno(recvfrom(sh->sockfd, sh->buffer, sh->length, 0, (struct sockaddr *)&sockaddr, &addr_len)); + } else if (sh->magic == MAGIC_SOCKET_SENDTO) { + err = js_get_errno(sendto(sh->sockfd, sh->buffer, sh->length, 0, (const struct sockaddr *)&sh->sockaddr, addr_len)); + } else if (sh->magic == MAGIC_SOCKET_CONNECT) { + err = getsockopt(sh->sockfd, SOL_SOCKET, SO_ERROR, &err, &len) ? -errno : -err; + } else if (sh->magic == MAGIC_SOCKET_ACCEPT) { + err = js_get_errno(accept(sh->sockfd, (struct sockaddr *)&sockaddr, &addr_len)); + } + + + if (err == -EAGAIN || err == -EWOULDBLOCK) + return; + + JSValue promiseval = JS_UNDEFINED; + if (sh->magic == MAGIC_SOCKET_ACCEPT) { + promiseval = JS_NewArray(ctx); + if (JS_IsException(promiseval)) + return; + JS_DefinePropertyValueUint32(ctx, promiseval, 0, JS_NewInt32(ctx, err), JS_PROP_C_W_E); + JS_DefinePropertyValueUint32(ctx, promiseval, 1, JS_ToSockaddrObj(ctx, &sockaddr), JS_PROP_C_W_E); + } else if (sh->magic == MAGIC_SOCKET_RECVFROM) { + JSValue addrObj = JS_ToSockaddrObj(ctx, &sockaddr); + if (JS_IsException(addrObj)) + return; + promiseval = JS_NewArray(ctx); + if (JS_IsException(promiseval)) + return; + JS_DefinePropertyValueUint32(ctx, promiseval, 0, JS_NewInt64(ctx, err), JS_PROP_C_W_E); + JS_DefinePropertyValueUint32(ctx, promiseval, 1, addrObj, JS_PROP_C_W_E); + } else { + promiseval = JS_NewInt32(ctx, err); + } + + /* 'func' might be destroyed when calling itself (if it frees the + handler), so must take extra care */ + JSValue func = JS_DupValue(ctx, err < 0 ? sh->reject : sh->resolve); + JSValue retval = JS_Call(ctx, func, JS_UNDEFINED, 1, (JSValueConst *)&promiseval); + JS_FreeValue(ctx, func); + + if (JS_IsException(retval)) { + js_std_dump_error(ctx); + } else { + JS_FreeValue(ctx, retval); + } + JS_FreeValue(ctx, promiseval); + JS_FreeValue(ctx, sh->bufval); + free_sock_handler(JS_GetRuntime(ctx), sh); +} + #if defined(_WIN32) static int js_os_poll(JSContext *ctx) @@ -2472,7 +2657,7 @@ static int js_os_poll(JSContext *ctx) if (!JS_IsNull(port->on_message_func)) { JSWorkerMessagePipe *ps = port->recv_pipe; if (ps->waker.handle == handles[ret]) { - if (handle_posted_message(rt, ctx, port)) + if (handle_posted_message(ctx, port)) goto done; } } @@ -2495,6 +2680,7 @@ static int js_os_poll(JSContext *ctx) int64_t cur_time, delay; fd_set rfds, wfds; JSOSRWHandler *rh; + JSOSSockHandler *sh; struct list_head *el; struct timeval tv, *tvp; @@ -2515,7 +2701,9 @@ static int js_os_poll(JSContext *ctx) } } - if (list_empty(&ts->os_rw_handlers) && list_empty(&ts->os_timers) && + if (list_empty(&ts->os_rw_handlers) && + list_empty(&ts->os_sock_handlers) && + list_empty(&ts->os_timers) && list_empty(&ts->port_list)) return -1; /* no more events */ @@ -2551,12 +2739,27 @@ static int js_os_poll(JSContext *ctx) list_for_each(el, &ts->os_rw_handlers) { rh = list_entry(el, JSOSRWHandler, link); fd_max = max_int(fd_max, rh->fd); - if (!JS_IsNull(rh->rw_func[0])) + if (!JS_IsNull(rh->r_func)) FD_SET(rh->fd, &rfds); - if (!JS_IsNull(rh->rw_func[1])) + if (!JS_IsNull(rh->w_func)) FD_SET(rh->fd, &wfds); } + list_for_each(el, &ts->os_sock_handlers) { + sh = list_entry(el, JSOSSockHandler, link); + fd_max = max_int(fd_max, sh->sockfd); + if (sh->magic == MAGIC_SOCKET_ACCEPT || + sh->magic == MAGIC_SOCKET_RECV || + sh->magic == MAGIC_SOCKET_RECVFROM){ + FD_SET(sh->sockfd, &rfds); + } + if (sh->magic == MAGIC_SOCKET_CONNECT || + sh->magic == MAGIC_SOCKET_SEND || + sh->magic == MAGIC_SOCKET_SENDTO){ + FD_SET(sh->sockfd, &wfds); + } + } + list_for_each(el, &ts->port_list) { JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link); if (!JS_IsNull(port->on_message_func)) { @@ -2570,26 +2773,32 @@ static int js_os_poll(JSContext *ctx) if (ret > 0) { list_for_each(el, &ts->os_rw_handlers) { rh = list_entry(el, JSOSRWHandler, link); - if (!JS_IsNull(rh->rw_func[0]) && - FD_ISSET(rh->fd, &rfds)) { - call_handler(ctx, rh->rw_func[0]); + if (!JS_IsNull(rh->r_func) && FD_ISSET(rh->fd, &rfds)) { + call_handler(ctx, rh->r_func); /* must stop because the list may have been modified */ goto done; } - if (!JS_IsNull(rh->rw_func[1]) && - FD_ISSET(rh->fd, &wfds)) { - call_handler(ctx, rh->rw_func[1]); + if (!JS_IsNull(rh->w_func) && FD_ISSET(rh->fd, &wfds)) { + call_handler(ctx, rh->w_func); /* must stop because the list may have been modified */ goto done; } } + list_for_each(el, &ts->os_sock_handlers) { + sh = list_entry(el, JSOSSockHandler, link); + if (FD_ISSET(sh->sockfd, &rfds) || FD_ISSET(sh->sockfd, &wfds)) { + handle_socket_message(ctx, sh); + goto done; + } + } + list_for_each(el, &ts->port_list) { JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link); if (!JS_IsNull(port->on_message_func)) { JSWorkerMessagePipe *ps = port->recv_pipe; if (FD_ISSET(ps->waker.read_fd, &rfds)) { - if (handle_posted_message(rt, ctx, port)) + if (handle_posted_message(ctx, port)) goto done; } } @@ -3401,6 +3610,231 @@ static JSValue js_os_dup2(JSContext *ctx, JSValueConst this_val, #endif /* !_WIN32 */ +static JSValue js_os_socket(JSContext *ctx, JSValueConst this_val, + int argc, JSValueConst *argv) +{ + int domain, type, protocol = 0, ret; + + if (JS_ToInt32(ctx, &domain, argv[0])) + return JS_EXCEPTION; + if (JS_ToInt32(ctx, &type, argv[1])) + return JS_EXCEPTION; + if (argc >= 3 && JS_ToInt32(ctx, &protocol, argv[2])) + return JS_EXCEPTION; + + ret = js_get_errno(socket(domain, type, protocol)); + + if (ret >= 0 && !(type & SOCK_NONBLOCK)) // JS flag `os.SOCK_BLOCKING` + fcntl(ret, F_SETFL, fcntl(ret, F_GETFL, 0) | O_NONBLOCK); + return JS_NewInt32(ctx, ret); +} + +static JSValue js_os_get_setsockopt(JSContext *ctx, JSValueConst this_val, + int argc, JSValueConst *argv, int magic) +{ + int sock, optname, ret; + uint8_t *optval; + socklen_t optlen; + size_t buflen; + + if (JS_ToInt32(ctx, &sock, argv[0])) + return JS_EXCEPTION; + if (JS_ToInt32(ctx, &optname, argv[1])) + return JS_EXCEPTION; + optval = JS_GetArrayBuffer(ctx, &buflen, argv[2]); + if (!optval) + return JS_EXCEPTION; + optlen = buflen; + + if (magic == 0) + ret = js_get_errno(getsockopt(sock, SOL_SOCKET, optname, optval, &optlen)); + else + ret = js_get_errno(setsockopt(sock, SOL_SOCKET, optname, &optval, optlen)); + return JS_NewInt32(ctx, ret); +} + +static JSValue js_os_getaddrinfo(JSContext *ctx, JSValueConst this_val, + int argc, JSValueConst *argv) +{ + int ret; + socklen_t objLen; + JSValue obj, addrObj; + const char* node = NULL; + const char* service = NULL; + struct addrinfo *ai,*it; + + if (!JS_IsNull(argv[0]) && !JS_IsUndefined(argv[0])) + node = JS_ToCString(ctx, argv[0]); + + service = JS_ToCString(ctx, argv[1]); + if (!service) + goto fail; + + ret = js_get_errno(getaddrinfo(node, service, NULL, &ai)); + if (ret) + goto fail; + + obj = JS_NewArray(ctx); + for (objLen = 0, it = ai; it; it = it->ai_next, objLen++) { + addrObj = JS_ToSockaddrObj(ctx,(struct sockaddr_storage *)it->ai_addr); + JS_SetPropertyUint32(ctx,obj,objLen,addrObj); + } + + freeaddrinfo(ai); + JS_FreeCString(ctx, service); + JS_FreeCString(ctx, node); + return obj; +fail: + JS_FreeValue(ctx, obj); + JS_FreeCString(ctx, service); + JS_FreeCString(ctx, node); + return JS_EXCEPTION; +} + +static JSValue js_os_bind(JSContext *ctx, JSValueConst this_val, + int argc, JSValueConst *argv) +{ + int sockfd, ret = 0; + struct sockaddr_storage sockaddr; + + if (JS_ToInt32(ctx, &sockfd, argv[0])) + return JS_EXCEPTION; + if (JS_ToSockaddrStruct(ctx, argv[1], &sockaddr, sockfd)) + return JS_EXCEPTION; + socklen_t addr_len = sockaddr.ss_family == AF_INET ? sizeof(struct sockaddr_in) : + sockaddr.ss_family == AF_INET6 ? sizeof(struct sockaddr_in6) : 0; + ret = js_get_errno(bind(sockfd, (struct sockaddr *)&sockaddr, addr_len)); + return JS_NewInt32(ctx, ret); +} + +static JSValue js_os_listen(JSContext *ctx, JSValueConst this_val, + int argc, JSValueConst *argv) +{ + int sockfd, backlog = SOMAXCONN, ret; + + if (JS_ToInt32(ctx, &sockfd, argv[0])) + return JS_EXCEPTION; + if (argc >= 2 && JS_ToInt32(ctx, &backlog, argv[1])) + return JS_EXCEPTION; + + ret = js_get_errno(listen(sockfd, backlog)); + return JS_NewInt32(ctx, ret); +} + +static JSValue js_os_connect_accept(JSContext *ctx, JSValueConst this_val, + int argc, JSValueConst *argv, int magic) +{ + int sockfd, sockret = 0; + + if (JS_ToInt32(ctx, &sockfd, argv[0])) + return JS_EXCEPTION; + + struct sockaddr_storage sockaddr; + if (magic == MAGIC_SOCKET_CONNECT) { + if (JS_ToSockaddrStruct(ctx, argv[1], &sockaddr, sockfd) < 0){ + JS_ThrowTypeError(ctx, "invalid sockaddr"); + return JS_EXCEPTION; + } + socklen_t addr_len = sockaddr.ss_family == AF_INET ? sizeof(struct sockaddr_in) : + sockaddr.ss_family == AF_INET6 ? sizeof(struct sockaddr_in6) : 0; + + sockret = js_get_errno(connect(sockfd, (struct sockaddr *)&sockaddr, addr_len)); + if (sockret != 0 && sockret != -EINPROGRESS) { + JS_ThrowTypeError(ctx, "connect failed"); + return JS_EXCEPTION; + } + } + /* accept() pooling done in handle_socket_message() to avoid code duplicate */ + + JSValue resolving_funcs[2]; + JSValue promise = JS_NewPromiseCapability(ctx, resolving_funcs); + if (JS_IsException(promise)) + return JS_EXCEPTION; + + JSThreadState *ts = JS_GetRuntimeOpaque(JS_GetRuntime(ctx)); + JSOSSockHandler *sh = js_mallocz(ctx, sizeof(*sh)); + sh->sockfd = sockfd; + sh->magic = magic; + sh->resolve = JS_DupValue(ctx, resolving_funcs[0]); + sh->reject = JS_DupValue(ctx, resolving_funcs[1]); + list_add_tail(&sh->link, &ts->os_sock_handlers); + JS_FreeValue(ctx, resolving_funcs[0]); + JS_FreeValue(ctx, resolving_funcs[1]); + + return promise; +} + +static JSValue js_os_recv_send(JSContext *ctx, JSValueConst this_val, + int argc, JSValueConst *argv, int magic) +{ + JSThreadState *ts = JS_GetRuntimeOpaque(JS_GetRuntime(ctx)); + JSOSSockHandler *sh = js_mallocz(ctx, sizeof(*sh)); + if (!sh) + return JS_EXCEPTION; + + JSValue resolving_funcs[2]; + JSValue promise = JS_NewPromiseCapability(ctx, resolving_funcs); + if (JS_IsException(promise)) + goto fail; + + // store all our info for async processing + sh->magic = magic; + if (JS_ToInt32(ctx, &sh->sockfd, argv[0])) + goto fail; + unsigned bufArgvIdx = 1; // buffer is argv[1], unless sendto() + if (magic == MAGIC_SOCKET_SENDTO) { + bufArgvIdx = 2; + if (JS_ToSockaddrStruct(ctx, argv[1], &sh->sockaddr, sh->sockfd) < 0) { + JS_ThrowTypeError(ctx, "invalid sockaddr"); + goto fail; + } + } + sh->buffer = JS_GetArrayBuffer(ctx, &sh->length, argv[bufArgvIdx]); + if (!sh->buffer) + goto fail; + if (argc > bufArgvIdx + 1) { + size_t length; + if (JS_ToIndex(ctx, &length, argv[bufArgvIdx + 1])) { + JS_ThrowRangeError(ctx, "Invalid length given"); + goto fail; + } + if (length > sh->length) { + JS_ThrowRangeError(ctx, "recv/send array buffer overflow"); + goto fail; + } + sh->length = length; + } + + sh->bufval = JS_DupValue(ctx, argv[bufArgvIdx]); + sh->resolve = JS_DupValue(ctx, resolving_funcs[0]); + sh->reject = JS_DupValue(ctx, resolving_funcs[1]); + list_add_tail(&sh->link, &ts->os_sock_handlers); + JS_FreeValue(ctx, resolving_funcs[0]); + JS_FreeValue(ctx, resolving_funcs[1]); + return promise; + + fail: + JS_FreeValue(ctx, promise); + JS_FreeValue(ctx, resolving_funcs[0]); + JS_FreeValue(ctx, resolving_funcs[1]); + js_free(ctx, sh); + return JS_EXCEPTION; +} + +static JSValue js_os_shutdown(JSContext *ctx, JSValueConst this_val, + int argc, JSValueConst *argv) +{ + int sockfd, how, ret; + + if (JS_ToInt32(ctx, &sockfd, argv[0])) + return JS_EXCEPTION; + if (JS_ToInt32(ctx, &how, argv[1])) + return JS_EXCEPTION; + + ret = js_get_errno(shutdown(sockfd, how)); + return JS_NewInt32(ctx, ret); +} + #ifdef USE_WORKER /* Worker */ @@ -3875,8 +4309,8 @@ static const JSCFunctionListEntry js_os_funcs[] = { JS_CFUNC_DEF("ttySetRaw", 1, js_os_ttySetRaw ), JS_CFUNC_DEF("remove", 1, js_os_remove ), JS_CFUNC_DEF("rename", 2, js_os_rename ), - JS_CFUNC_MAGIC_DEF("setReadHandler", 2, js_os_setReadHandler, 0 ), - JS_CFUNC_MAGIC_DEF("setWriteHandler", 2, js_os_setReadHandler, 1 ), + JS_CFUNC_MAGIC_DEF("setReadHandler", 2, js_os_setReadWriteHandler, 0 ), + JS_CFUNC_MAGIC_DEF("setWriteHandler", 2, js_os_setReadWriteHandler, 1 ), JS_CFUNC_DEF("signal", 2, js_os_signal ), OS_FLAG(SIGINT), OS_FLAG(SIGABRT), @@ -3936,6 +4370,33 @@ static const JSCFunctionListEntry js_os_funcs[] = { JS_CFUNC_DEF("dup", 1, js_os_dup ), JS_CFUNC_DEF("dup2", 2, js_os_dup2 ), #endif + /* SOCKET I/O */ + JS_CFUNC_DEF("socket", 2, js_os_socket ), + JS_CFUNC_MAGIC_DEF("getsockopt", 3, js_os_get_setsockopt, 0 ), + JS_CFUNC_MAGIC_DEF("setsockopt", 3, js_os_get_setsockopt, 1 ), + JS_CFUNC_DEF("getaddrinfo", 2, js_os_getaddrinfo ), + JS_CFUNC_DEF("bind", 2, js_os_bind ), + JS_CFUNC_DEF("listen", 1, js_os_listen ), + JS_CFUNC_MAGIC_DEF("accept", 1, js_os_connect_accept, MAGIC_SOCKET_ACCEPT ), + JS_CFUNC_MAGIC_DEF("connect", 2, js_os_connect_accept, MAGIC_SOCKET_CONNECT ), + JS_CFUNC_MAGIC_DEF("recv", 3, js_os_recv_send, MAGIC_SOCKET_RECV ), + JS_CFUNC_MAGIC_DEF("send", 3, js_os_recv_send, MAGIC_SOCKET_SEND ), + JS_CFUNC_MAGIC_DEF("recvfrom", 4, js_os_recv_send, MAGIC_SOCKET_RECVFROM ), + JS_CFUNC_MAGIC_DEF("sendto", 3, js_os_recv_send, MAGIC_SOCKET_SENDTO ), + JS_CFUNC_DEF("shutdown", 2, js_os_shutdown ), + OS_FLAG(AF_INET), + OS_FLAG(AF_INET6), + OS_FLAG(SOCK_STREAM), + OS_FLAG(SOCK_DGRAM), + OS_FLAG(SOCK_RAW), + // SOCK_NONBLOCK is set by default so reuse it value for our imaginary nemsis + JS_PROP_INT32_DEF("SOCK_BLOCK", SOCK_NONBLOCK, JS_PROP_CONFIGURABLE ), + OS_FLAG(SO_REUSEADDR), + OS_FLAG(SO_RCVBUF), + OS_FLAG(SO_ERROR), + OS_FLAG(SHUT_RD), + OS_FLAG(SHUT_WR), + OS_FLAG(SHUT_RDWR), }; static int js_os_init(JSContext *ctx, JSModuleDef *m) @@ -4070,6 +4531,7 @@ void js_std_init_handlers(JSRuntime *rt) } memset(ts, 0, sizeof(*ts)); init_list_head(&ts->os_rw_handlers); + init_list_head(&ts->os_sock_handlers); init_list_head(&ts->os_signal_handlers); init_list_head(&ts->os_timers); init_list_head(&ts->port_list); @@ -4101,6 +4563,11 @@ void js_std_free_handlers(JSRuntime *rt) free_rw_handler(rt, rh); } + list_for_each_safe(el, el1, &ts->os_sock_handlers) { + JSOSSockHandler *sh = list_entry(el, JSOSSockHandler, link); + free_sock_handler(rt, sh); + } + list_for_each_safe(el, el1, &ts->os_signal_handlers) { JSOSSignalHandler *sh = list_entry(el, JSOSSignalHandler, link); free_sh(rt, sh);