C++ String_new函数代码示例

static int calculateAuth(Dict* message,
                         String* password,
                         String* cookieStr,
                         struct Allocator* alloc)
{
    // Calculate the hash of the password.
    String* hashHex = String_newBinary(NULL, 64, alloc);
    uint8_t passAndCookie[64];
    uint32_t cookie = (cookieStr != NULL) ? strtoll(cookieStr->bytes, NULL, 10) : 0;
    snprintf((char*) passAndCookie, 64, "%s%u", password->bytes, cookie);
    uint8_t hash[32];
    crypto_hash_sha256(hash, passAndCookie, strlen((char*) passAndCookie));
    Hex_encode((uint8_t*)hashHex->bytes, 64, hash, 32);

    Dict_putString(message, String_new("hash", alloc), hashHex, alloc);
    Dict_putString(message, String_new("cookie", alloc), cookieStr, alloc);

    // serialize the message with the password hash
    uint8_t buffer[AdminClient_MAX_MESSAGE_SIZE];
    struct Writer* writer = ArrayWriter_new(buffer, AdminClient_MAX_MESSAGE_SIZE, alloc);
    if (StandardBencSerializer_get()->serializeDictionary(writer, message)) {
        return -1;
    }
    int length = writer->bytesWritten;

    // calculate the hash of the message with the password hash
    crypto_hash_sha256(hash, buffer, length);

    // swap the hash of the message with the password hash into the location
    // where the password hash was.
    Hex_encode((uint8_t*)hashHex->bytes, 64, hash, 32);
    return 0;
}

int main(int ____c, char *____v[])
{
	setup_error_handlers();
	gc_begin_func();
	STRING(s1);
	STRING(s2);
	STRING(t);
	bool s1t;
	bool s2t;
	s1 = String_new("hellp");
	s2 = String_new("aello");
	t = String_new("hello");
	s1t = str_gt(s1,t);
	if (s1t) {
		gt_msg(s1,t);
	}
	else {
		le_msg(s1,t);
	}
	s2t = str_gt(s2,t);
	if (s2t) {
		gt_msg(s2,t);
	}
	else {
		le_msg(s2,t);
	}
	gc_end_func();

	gc();
	Heap_Info info = get_heap_info();
	if ( info.live!=0 ) fprintf(stderr, "%d objects remain after collection\n", info.live);
	gc_shutdown();
	return 0;
}

void f() {
	// var x = "cat" + "dog"
	String *tmp1;
	String *tmp2;
	String *x = String_add(tmp1=String_new("cat"), tmp2=String_new("dog"));

	// print(x)
	print_string(x);

	// print(x[1]+x[3])
	String *tmp3;
	String *tmp4;
	String *tmp5;
	print_string(
		   tmp5=String_add(
			   tmp3=String_from_char(x->str[(1)-1]),
			   tmp4=String_from_char(x->str[(3)-1])
		   )
	);

	// end of scope code; drop ref count by 1 for all [], string vars
	DEREF(x);
	DEREF(tmp1);
	DEREF(tmp2);
	DEREF(tmp3);
	DEREF(tmp4);
	DEREF(tmp5);
}

static int calculateAuth(Dict* message,
                         String* password,
                         String* cookieStr,
                         struct Allocator* alloc)
{
    // Calculate the hash of the password.
    String* hashHex = String_newBinary(NULL, 64, alloc);
    uint8_t passAndCookie[64];
    uint32_t cookie = (cookieStr != NULL) ? strtoll(cookieStr->bytes, NULL, 10) : 0;
    snprintf((char*) passAndCookie, 64, "%s%u", password->bytes, cookie);
    uint8_t hash[32];
    crypto_hash_sha256(hash, passAndCookie, CString_strlen((char*) passAndCookie));
    Hex_encode((uint8_t*)hashHex->bytes, 64, hash, 32);

    Dict_putString(message, String_new("hash", alloc), hashHex, alloc);
    Dict_putString(message, String_new("cookie", alloc), cookieStr, alloc);

    // serialize the message with the password hash
    struct Message* msg = Message_new(0, AdminClient_MAX_MESSAGE_SIZE, alloc);
    BencMessageWriter_write(message, msg, NULL);

    // calculate the hash of the message with the password hash
    crypto_hash_sha256(hash, msg->bytes, msg->length);

    // swap the hash of the message with the password hash into the location
    // where the password hash was.
    Hex_encode((uint8_t*)hashHex->bytes, 64, hash, 32);
    return 0;
}

static void getSomething(Dict* args,
                         struct RouteGen_admin_Ctx* ctx,
                         String* txid,
                         struct Allocator* requestAlloc,
                         Dict* genRoutes)
{
    int page = getIntVal(args, String_CONST("page"));
    List* routes;
    if (getIntVal(args, String_CONST("ip6"))) {
        routes = Dict_getList(genRoutes, String_CONST("ipv6"));
    } else {
        routes = Dict_getList(genRoutes, String_CONST("ipv4"));
    }
    Assert_true(routes);
    List* outList = List_new(requestAlloc);
    bool more = false;
    for (int i = page * ROUTES_PER_PAGE, j = 0; i < List_size(routes) && j < ROUTES_PER_PAGE; j++) {
        String* route = List_getString(routes, i);
        Assert_true(route);
        List_addString(outList, route, requestAlloc);
        if (++i >= List_size(routes)) {
            more = false;
            break;
        }
        more = true;
    }
    Dict* out = Dict_new(requestAlloc);
    if (more) {
        Dict_putInt(out, String_new("more", requestAlloc), 1, requestAlloc);
    }
    Dict_putList(out, String_new("routes", requestAlloc), outList, requestAlloc);
    Admin_sendMessage(out, txid, ctx->admin);
}

int main(int ____c, char *____v[])
{
    setup_error_handlers();
    print_string(becomeSuper(String_new("man")));
    print_string(becomeSuper(String_new("duper")));
    return 0;
}

Dict* Security_getUser(char* userName, struct Allocator* retAlloc)
{
    Dict* ret = Dict_new(retAlloc);
    Dict_putString(ret, String_new("error", retAlloc),
                        String_new("Not supported on windows", retAlloc),
                        retAlloc);
    return ret;
}

static int set_device(Instance *pi, const char *value)
{
  ALSAio_private *priv = (ALSAio_private *)pi;
  int rc = 0;
  int i;

  String_free(&priv->c.device);
  priv->c.device = String_new(value);

  if (priv->c.handle) {
    snd_pcm_close(priv->c.handle);
  }

  /* Try matching by description first... */
  Range available_alsa_devices = {};
  get_device_range(pi, &available_alsa_devices);
  for (i=0; i < available_alsa_devices.descriptions.count; i++) {
    if (strstr(available_alsa_devices.descriptions.items[i]->bytes, value)) {
      puts("found it!");
      priv->c.device = String_new(available_alsa_devices.strings.items[i]->bytes);
      break;
    }
  }

  Range_clear(&available_alsa_devices);

  if (String_is_none(priv->c.device)) {
    /* Not found, try value as supplied. */
    priv->c.device = String_new(value);
  }

  rc = snd_pcm_open(&priv->c.handle, s(priv->c.device), priv->c.mode, 0);
  if (rc < 0) {
    fprintf(stderr, "*** snd_pcm_open %s: %s\n", s(priv->c.device), snd_strerror(rc));
    goto out;
  }

  fprintf(stderr, "ALSA device %s opened, handle=%p\n", s(priv->c.device), priv->c.handle);

  /* Allocate hardware parameter structure, and call "any", and use
     the resulting hwparams in subsequent calls.  I had tried calling
     _any() in each get/set function, but recording failed, so it
     seems ALSA doesn't work that way. */
  snd_pcm_hw_params_malloc(&priv->c.hwparams);
  rc = snd_pcm_hw_params_any(priv->c.handle, priv->c.hwparams);

  /* Might as well set interleaved here, too. */
  rc = snd_pcm_hw_params_set_access(priv->c.handle, priv->c.hwparams,
                                    SND_PCM_ACCESS_RW_INTERLEAVED);
  if (rc != 0) {
    fprintf(stderr, "*** snd_pcm_hw_params_set_access %s: %s\n", s(priv->c.device), snd_strerror(rc));
  }

 out:
  return rc;
}

static Dict* makeLogMessage(struct Subscription* subscription,
                            struct AdminLog* logger,
                            enum Log_Level logLevel,
                            const char* fullFilePath,
                            uint32_t line,
                            const char* format,
                            va_list vaArgs,
                            struct Allocator* alloc)
{
    time_t now;
    time(&now);

    Dict* out = Dict_new(alloc);
    char* buff = Allocator_malloc(alloc, 20);
    Hex_encode((uint8_t*)buff, 20, subscription->streamId, 8);
    Dict_putString(out, String_new("streamId", alloc), String_new(buff, alloc), alloc);
    Dict_putInt(out, String_new("time", alloc), now, alloc);
    Dict_putString(out,
                   String_new("level", alloc),
                   String_new(Log_nameForLevel(logLevel), alloc),
                   alloc);
    const char* shortName = getShortName(fullFilePath);
    Dict_putString(out, String_new("file", alloc), String_new((char*)shortName, alloc), alloc);
    Dict_putInt(out, String_new("line", alloc), line, alloc);
    String* message = String_vprintf(alloc, format, vaArgs);

    // Strip all of the annoying \n marks in the log entries.
    if (message->len > 0 && message->bytes[message->len - 1] == '\n') {
        message->len--;
    }
    Dict_putString(out, String_new("message", alloc), message, alloc);

    return out;
}

static void adminPeerStats(Dict* args, void* vcontext, String* txid)
{
    struct Context* context = vcontext;
    struct Allocator* alloc = Allocator_child(context->alloc);
    struct InterfaceController_peerStats* stats = NULL;

    int64_t* page = Dict_getInt(args, String_CONST("page"));
    int i = (page) ? *page * ENTRIES_PER_PAGE : 0;

    int count = context->ic->getPeerStats(context->ic, alloc, &stats);

    String* bytesIn = String_CONST("bytesIn");
    String* bytesOut = String_CONST("bytesOut");
    String* pubKey = String_CONST("publicKey");
    String* state = String_CONST("state");
    String* last = String_CONST("last");
    String* switchLabel = String_CONST("switchLabel");
    String* isIncoming = String_CONST("isIncoming");

    List* list = NULL;
    for (int counter=0; i < count && counter++ < ENTRIES_PER_PAGE; i++) {
        Dict* d = Dict_new(alloc);
        Dict_putInt(d, bytesIn, stats[i].bytesIn, alloc);
        Dict_putInt(d, bytesOut, stats[i].bytesOut, alloc);
        Dict_putString(d, pubKey, Key_stringify(stats[i].pubKey, alloc), alloc);

        String* stateString = String_new(InterfaceController_stateString(stats[i].state), alloc);
        Dict_putString(d, state, stateString, alloc);

        Dict_putInt(d, last, stats[i].timeOfLastMessage, alloc);

        uint8_t labelStack[20];
        AddrTools_printPath(labelStack, stats[i].switchLabel);
        Dict_putString(d, switchLabel, String_new((char*)labelStack, alloc), alloc);

        Dict_putInt(d, isIncoming, stats[i].isIncomingConnection, alloc);

        list = List_addDict(list, d, alloc);
    }

    Dict response = Dict_CONST(
        String_CONST("peers"), List_OBJ(list), Dict_CONST(
        String_CONST("total"), Int_OBJ(count), NULL
    ));

    if (i < count) {
      response = Dict_CONST(
        String_CONST("more"), Int_OBJ(1), response
      );
    }

    Admin_sendMessage(&response, txid, context->admin);

    Allocator_free(alloc);
}

static String* getExpectedResponse(struct Sockaddr* sa4, int prefix4, int alloc4,
                                   struct Sockaddr* sa6, int prefix6, int alloc6,
                                   struct Allocator* allocator)
{
    Assert_true(alloc6 >= prefix6);
    Assert_true(alloc4 >= prefix4);
    struct Allocator* alloc = Allocator_child(allocator);
    Dict* addresses = Dict_new(alloc);
    if (sa4) {
        uint8_t* addr = NULL;
        Assert_true(Sockaddr_getAddress(sa4, &addr) == 4);
        String* addrStr = String_newBinary(addr, 4, alloc);
        Dict_putString(addresses, String_new("ip4", alloc), addrStr, alloc);
        Dict_putInt(addresses, String_new("ip4Prefix", alloc), prefix4, alloc);
        Dict_putInt(addresses, String_new("ip4Alloc", alloc), alloc4, alloc);
    }
    if (sa6) {
        uint8_t* addr = NULL;
        Assert_true(Sockaddr_getAddress(sa6, &addr) == 16);
        String* addrStr = String_newBinary(addr, 16, alloc);
        Dict_putString(addresses, String_new("ip6", alloc), addrStr, alloc);
        Dict_putInt(addresses, String_new("ip6Prefix", alloc), prefix6, alloc);
        Dict_putInt(addresses, String_new("ip6Alloc", alloc), alloc6, alloc);
    }
    Dict* output = Dict_new(alloc);
    Dict_putDict(output, String_new("addresses", alloc), addresses, alloc);
    Dict_putString(output, String_new("txid", alloc), String_new("abcd", alloc), alloc);
    struct Message* msg = Message_new(0, 512, alloc);
    BencMessageWriter_write(output, msg, NULL);

    String* outStr = String_newBinary(msg->bytes, msg->length, allocator);
    Allocator_free(alloc);
    return outStr;
}

void f()
{
    ENTER();
    STRING(x);
    x = String_add(String_new("cat"),String_new("dog"));
    REF((void *)x);
    print_string(x);
    print_string(String_add(String_from_char(x->str[(1)-1]),String_from_char(x->str[(3)-1])));

    EXIT();
}

static void addRemoveSomething(Dict* args,
                               void* vcontext,
                               String* txid,
                               struct Allocator* requestAlloc,
                               enum addRemoveSomething_What what)
{
    struct RouteGen_admin_Ctx* ctx = Identity_check((struct RouteGen_admin_Ctx*) vcontext);
    String* route = Dict_getString(args, String_CONST("route"));
    char* error = NULL;

    struct Sockaddr_storage ss;
    if (route->len > 63) {
        error = "parse_failed";
    }
    if (!error) {
        if (Sockaddr_parse(route->bytes, &ss)) {
            error = "parse_failed";
        } else {
            int family = Sockaddr_getFamily(&ss.addr);
            if (family != Sockaddr_AF_INET && family != Sockaddr_AF_INET6) {
                error = "unexpected_af";
            }
        }
    }
    int retVal = -1;
    Dict* out = Dict_new(requestAlloc);
    if (!error) {
        switch (what) {
            case addRemoveSomething_What_ADD_EXCEPTION:
                RouteGen_addException(ctx->rg, &ss.addr); break;
            case addRemoveSomething_What_ADD_PREFIX:
                RouteGen_addPrefix(ctx->rg, &ss.addr); break;
            case addRemoveSomething_What_ADD_LOCALPREFIX:
                RouteGen_addLocalPrefix(ctx->rg, &ss.addr); break;
            case addRemoveSomething_What_RM_EXCEPTION:
                retVal = RouteGen_removeException(ctx->rg, &ss.addr); break;
            case addRemoveSomething_What_RM_PREFIX:
                retVal = RouteGen_removePrefix(ctx->rg, &ss.addr); break;
            case addRemoveSomething_What_RM_LOCALPREFIX:
                retVal = RouteGen_removeLocalPrefix(ctx->rg, &ss.addr); break;
            default: Assert_failure("invalid op");
        }
        if (!retVal) {
            error = "no_such_route";
        } else {
            error = "none";
        }
    }
    Dict_putString(out,
                   String_new("error", requestAlloc),
                   String_new(error, requestAlloc),
                   requestAlloc);
    Admin_sendMessage(out, txid, ctx->admin);
}

static void sessionStats(Dict* args,
                         void* vcontext,
                         String* txid,
                         struct Allocator* alloc)
{
    struct Context* context = Identity_check((struct Context*) vcontext);
    int64_t* handleP = Dict_getInt(args, String_CONST("handle"));
    uint32_t handle = *handleP;

    struct SessionManager_Session* session = SessionManager_sessionForHandle(handle, context->sm);

    Dict* r = Dict_new(alloc);
    if (!session) {
        Dict_putString(r, String_CONST("error"), String_CONST("no such session"), alloc);
        Admin_sendMessage(r, txid, context->admin);
        return;
    }

    uint8_t printedAddr[40];
    AddrTools_printIp(printedAddr, session->caSession->herIp6);
    Dict_putString(r, String_CONST("ip6"), String_new(printedAddr, alloc), alloc);

    String* state =
        String_new(CryptoAuth_stateString(CryptoAuth_getState(session->caSession)), alloc);
    Dict_putString(r, String_CONST("state"), state, alloc);

    struct ReplayProtector* rp = &session->caSession->replayProtector;
    Dict_putInt(r, String_CONST("duplicates"), rp->duplicates, alloc);
    Dict_putInt(r, String_CONST("lostPackets"), rp->lostPackets, alloc);
    Dict_putInt(r, String_CONST("receivedOutOfRange"), rp->receivedOutOfRange, alloc);

    struct Address addr;
    Bits_memcpyConst(addr.key, session->caSession->herPublicKey, 32);
    addr.path = session->sendSwitchLabel;
    addr.protocolVersion = session->version;

    Dict_putString(r, String_CONST("addr"), Address_toString(&addr, alloc), alloc);

    Dict_putString(r, String_CONST("publicKey"),
                      Key_stringify(session->caSession->herPublicKey, alloc), alloc);
    Dict_putInt(r, String_CONST("version"), session->version, alloc);
    Dict_putInt(r, String_CONST("handle"), session->receiveHandle, alloc);
    Dict_putInt(r, String_CONST("sendHandle"), session->sendHandle, alloc);

    Dict_putInt(r, String_CONST("timeOfLastIn"), session->timeOfLastIn, alloc);
    Dict_putInt(r, String_CONST("timeOfLastOut"), session->timeOfLastOut, alloc);

    Dict_putString(r, String_CONST("deprecation"),
        String_CONST("publicKey,version will soon be removed"), alloc);

    Admin_sendMessage(r, txid, context->admin);
    return;
}

static void showActiveSearch(Dict* args, void* vctx, String* txid, struct Allocator* alloc)
{
    struct Context* ctx = Identity_check((struct Context*) vctx);
    int number = *(Dict_getIntC(args, "number"));

    struct SearchRunner_SearchData* search =
        SearchRunner_showActiveSearch(ctx->runner, number, alloc);

    Dict* dict = Dict_new(alloc);

    // Nothing is an error
    Dict_putString(dict, String_new("error", alloc), String_new("none", alloc), alloc);

    if (number < search->activeSearches) {
        uint8_t target[40];
        AddrTools_printIp(target, search->target);
        Dict_putString(dict, String_new("target", alloc), String_new((char*)target, alloc), alloc);

        uint8_t lastNodeAsked[60];
        Address_print(lastNodeAsked, &search->lastNodeAsked);
        Dict_putString(dict,
                       String_new("lastNodeAsked", alloc),
                       String_new((char*)lastNodeAsked, alloc),
                       alloc);

        Dict_putInt(dict, String_new("totalRequests", alloc), search->totalRequests, alloc);
    }
    Dict_putInt(dict, String_new("activeSearches", alloc), search->activeSearches, alloc);

    Admin_sendMessage(dict, txid, ctx->admin);
}