Commit message: Detect invalid port in xp_socket parse ip address

For historical reasons, fsockopen() accepts the port and hostname
separately: fsockopen('127.0.0.1', 80)

However, with the introdcution of stream transports in PHP 4.3,
it became possible to include the port in the hostname specifier:

fsockopen('127.0.0.1:80')
Or more formally: fsockopen('tcp://127.0.0.1:80')

Confusing results when these two forms are combined, however.
fsockopen('127.0.0.1:80', 443) results in fsockopen() attempting
to connect to '127.0.0.1:80:443' which any reasonable stack would
consider invalid.

Unfortunately, PHP parses the address looking for the first colon
(with special handling for IPv6, don't worry) and calls atoi()
from there.  atoi() in turn, simply stops parsing at the first
non-numeric character and returns the value so far.

The end result is that the explicitly supplied port is treated
as ignored garbage, rather than producing an error.

This diff replaces atoi() with strtol() and inspects the
stop character.  If additional "garbage" of any kind is found,
it fails and returns an error.
CVE: CVE-2017-7189
CWE: CWE-918
Vulnerability description: main/streams/xp_socket.c in PHP 7.x before 2017-03-07 misparses fsockopen calls, such as by interpreting fsockopen('127.0.0.1:80', 443) as if the address/port were 127.0.0.1:80:443, which is later truncated to 127.0.0.1:80. This behavior has a security risk if the explicitly provided port number (i.e., 443 in this example) is hardcoded into an application as a security policy, but the hostname argument (i.e., 127.0.0.1:80 in this example) is obtained from untrusted input.

Project: php-src
File: xp_socket.c

 static inline char *parse_ip_address(php_stream_xport_param *xparam, int *portno)
{
	return parse_ip_address_ex(xparam->inputs.name, xparam->inputs.namelen, portno, xparam->want_errortext, &xparam->outputs.error_text);
}

Project: php-src
File: xp_socket.c

static inline int parse_unix_address(php_stream_xport_param *xparam, struct sockaddr_un *unix_addr)
{
	memset(unix_addr, 0, sizeof(*unix_addr));
	unix_addr->sun_family = AF_UNIX;

	/* we need to be binary safe on systems that support an abstract
	 * namespace */
	if (xparam->inputs.namelen >= sizeof(unix_addr->sun_path)) {
		/* On linux, when the path begins with a NUL byte we are
		 * referring to an abstract namespace.  In theory we should
		 * allow an extra byte below, since we don't need the NULL.
		 * BUT, to get into this branch of code, the name is too long,
		 * so we don't care. */
		xparam->inputs.namelen = sizeof(unix_addr->sun_path) - 1;
		php_error_docref(NULL, E_NOTICE,
			"socket path exceeded the maximum allowed length of %lu bytes "
			"and was truncated", (unsigned long)sizeof(unix_addr->sun_path));
	}

	memcpy(unix_addr->sun_path, xparam->inputs.name, xparam->inputs.namelen);

	return 1;
}

Project: php-src
File: xp_socket.c

static void php_sock_stream_wait_for_data(php_stream *stream, php_netstream_data_t *sock)
{
	int retval;
	struct timeval *ptimeout;

	if (!sock || sock->socket == -1) {
		return;
	}

	sock->timeout_event = 0;

	if (sock->timeout.tv_sec == -1)
		ptimeout = NULL;
	else
		ptimeout = &sock->timeout;

	while(1) {
		retval = php_pollfd_for(sock->socket, PHP_POLLREADABLE, ptimeout);

		if (retval == 0)
			sock->timeout_event = 1;

		if (retval >= 0)
			break;

		if (php_socket_errno() != EINTR)
			break;
	}
}

Project: php-src
File: xp_socket.c

static int php_sockop_cast(php_stream *stream, int castas, void **ret)
{
	php_netstream_data_t *sock = (php_netstream_data_t*)stream->abstract;

	if (!sock) {
		return FAILURE;
	}

	switch(castas)	{
		case PHP_STREAM_AS_STDIO:
			if (ret)	{
				*(FILE**)ret = fdopen(sock->socket, stream->mode);
				if (*ret)
					return SUCCESS;
				return FAILURE;
			}
			return SUCCESS;
		case PHP_STREAM_AS_FD_FOR_SELECT:
		case PHP_STREAM_AS_FD:
		case PHP_STREAM_AS_SOCKETD:
			if (ret)
				*(php_socket_t *)ret = sock->socket;
			return SUCCESS;
		default:
			return FAILURE;
	}
}

Project: php-src
File: xp_socket.c

static int php_sockop_flush(php_stream *stream)
{
#if 0
	php_netstream_data_t *sock = (php_netstream_data_t*)stream->abstract;
	return fsync(sock->socket);
#endif
	return 0;
}

Project: php-src
File: xp_socket.c

static size_t php_sockop_read(php_stream *stream, char *buf, size_t count)
{
	php_netstream_data_t *sock = (php_netstream_data_t*)stream->abstract;
	ssize_t nr_bytes = 0;
	int err;

	if (!sock || sock->socket == -1) {
		return 0;
	}

	if (sock->is_blocked) {
		php_sock_stream_wait_for_data(stream, sock);
		if (sock->timeout_event)
			return 0;
	}

	nr_bytes = recv(sock->socket, buf, XP_SOCK_BUF_SIZE(count), (sock->is_blocked && sock->timeout.tv_sec != -1) ? MSG_DONTWAIT : 0);
	err = php_socket_errno();

	stream->eof = (nr_bytes == 0 || (nr_bytes == -1 && err != EWOULDBLOCK && err != EAGAIN));

	if (nr_bytes > 0) {
		php_stream_notify_progress_increment(PHP_STREAM_CONTEXT(stream), nr_bytes, 0);
	}

	if (nr_bytes < 0) {
		nr_bytes = 0;
	}

	return nr_bytes;
}

Project: php-src
File: xp_socket.c

static int php_sockop_set_option(php_stream *stream, int option, int value, void *ptrparam)
{
	int oldmode, flags;
	php_netstream_data_t *sock = (php_netstream_data_t*)stream->abstract;
	php_stream_xport_param *xparam;

	if (!sock) {
		return PHP_STREAM_OPTION_RETURN_NOTIMPL;
	}

	switch(option) {
		case PHP_STREAM_OPTION_CHECK_LIVENESS:
			{
				struct timeval tv;
				char buf;
				int alive = 1;

				if (value == -1) {
					if (sock->timeout.tv_sec == -1) {
						tv.tv_sec = FG(default_socket_timeout);
						tv.tv_usec = 0;
					} else {
						tv = sock->timeout;
					}
				} else {
					tv.tv_sec = value;
					tv.tv_usec = 0;
				}

				if (sock->socket == -1) {
					alive = 0;
				} else if (php_pollfd_for(sock->socket, PHP_POLLREADABLE|POLLPRI, &tv) > 0) {
#ifdef PHP_WIN32
					int ret;
#else
					ssize_t ret;
#endif
					int err;

					ret = recv(sock->socket, &buf, sizeof(buf), MSG_PEEK);
					err = php_socket_errno();
					if (0 == ret || /* the counterpart did properly shutdown*/
						(0 > ret && err != EWOULDBLOCK && err != EAGAIN && err != EMSGSIZE)) { /* there was an unrecoverable error */
						alive = 0;
					}
				}
				return alive ? PHP_STREAM_OPTION_RETURN_OK : PHP_STREAM_OPTION_RETURN_ERR;
			}

		case PHP_STREAM_OPTION_BLOCKING:
			oldmode = sock->is_blocked;
			if (SUCCESS == php_set_sock_blocking(sock->socket, value)) {
				sock->is_blocked = value;
				return oldmode;
			}
			return PHP_STREAM_OPTION_RETURN_ERR;

		case PHP_STREAM_OPTION_READ_TIMEOUT:
			sock->timeout = *(struct timeval*)ptrparam;
			sock->timeout_event = 0;
			return PHP_STREAM_OPTION_RETURN_OK;

		case PHP_STREAM_OPTION_META_DATA_API:
			add_assoc_bool((zval *)ptrparam, "timed_out", sock->timeout_event);
			add_assoc_bool((zval *)ptrparam, "blocked", sock->is_blocked);
			add_assoc_bool((zval *)ptrparam, "eof", stream->eof);
			return PHP_STREAM_OPTION_RETURN_OK;

		case PHP_STREAM_OPTION_XPORT_API:
			xparam = (php_stream_xport_param *)ptrparam;

			switch (xparam->op) {
				case STREAM_XPORT_OP_LISTEN:
					xparam->outputs.returncode = (listen(sock->socket, xparam->inputs.backlog) == 0) ?  0: -1;
					return PHP_STREAM_OPTION_RETURN_OK;

				case STREAM_XPORT_OP_GET_NAME:
					xparam->outputs.returncode = php_network_get_sock_name(sock->socket,
							xparam->want_textaddr ? &xparam->outputs.textaddr : NULL,
							xparam->want_addr ? &xparam->outputs.addr : NULL,
							xparam->want_addr ? &xparam->outputs.addrlen : NULL
							);
					return PHP_STREAM_OPTION_RETURN_OK;

				case STREAM_XPORT_OP_GET_PEER_NAME:
					xparam->outputs.returncode = php_network_get_peer_name(sock->socket,
							xparam->want_textaddr ? &xparam->outputs.textaddr : NULL,
							xparam->want_addr ? &xparam->outputs.addr : NULL,
							xparam->want_addr ? &xparam->outputs.addrlen : NULL
							);
					return PHP_STREAM_OPTION_RETURN_OK;

				case STREAM_XPORT_OP_SEND:
					flags = 0;
					if ((xparam->inputs.flags & STREAM_OOB) == STREAM_OOB) {
						flags |= MSG_OOB;
					}
					xparam->outputs.returncode = sock_sendto(sock,
							xparam->inputs.buf, xparam->inputs.buflen,
							flags,
							xparam->inputs.addr,
							xparam->inputs.addrlen);
					if (xparam->outputs.returncode == -1) {
						char *err = php_socket_strerror(php_socket_errno(), NULL, 0);
						php_error_docref(NULL, E_WARNING,
						   	"%s\n", err);
						efree(err);
					}
					return PHP_STREAM_OPTION_RETURN_OK;

				case STREAM_XPORT_OP_RECV:
					flags = 0;
					if ((xparam->inputs.flags & STREAM_OOB) == STREAM_OOB) {
						flags |= MSG_OOB;
					}
					if ((xparam->inputs.flags & STREAM_PEEK) == STREAM_PEEK) {
						flags |= MSG_PEEK;
					}
					xparam->outputs.returncode = sock_recvfrom(sock,
							xparam->inputs.buf, xparam->inputs.buflen,
							flags,
							xparam->want_textaddr ? &xparam->outputs.textaddr : NULL,
							xparam->want_addr ? &xparam->outputs.addr : NULL,
							xparam->want_addr ? &xparam->outputs.addrlen : NULL
							);
					return PHP_STREAM_OPTION_RETURN_OK;


#ifdef HAVE_SHUTDOWN
# ifndef SHUT_RD
#  define SHUT_RD 0
# endif
# ifndef SHUT_WR
#  define SHUT_WR 1
# endif
# ifndef SHUT_RDWR
#  define SHUT_RDWR 2
# endif
				case STREAM_XPORT_OP_SHUTDOWN: {
					static const int shutdown_how[] = {SHUT_RD, SHUT_WR, SHUT_RDWR};

					xparam->outputs.returncode = shutdown(sock->socket, shutdown_how[xparam->how]);
					return PHP_STREAM_OPTION_RETURN_OK;
				}
#endif

				default:
					return PHP_STREAM_OPTION_RETURN_NOTIMPL;
			}

		default:
			return PHP_STREAM_OPTION_RETURN_NOTIMPL;
	}
}

Project: php-src
File: xp_socket.c

static size_t php_sockop_write(php_stream *stream, const char *buf, size_t count)
{
	php_netstream_data_t *sock = (php_netstream_data_t*)stream->abstract;
	int didwrite;
	struct timeval *ptimeout;

	if (!sock || sock->socket == -1) {
		return 0;
	}

	if (sock->timeout.tv_sec == -1)
		ptimeout = NULL;
	else
		ptimeout = &sock->timeout;

retry:
	didwrite = send(sock->socket, buf, XP_SOCK_BUF_SIZE(count), (sock->is_blocked && ptimeout) ? MSG_DONTWAIT : 0);

	if (didwrite <= 0) {
		int err = php_socket_errno();
		char *estr;

		if (sock->is_blocked && (err == EWOULDBLOCK || err == EAGAIN)) {
			int retval;

			sock->timeout_event = 0;

			do {
				retval = php_pollfd_for(sock->socket, POLLOUT, ptimeout);

				if (retval == 0) {
					sock->timeout_event = 1;
					break;
				}

				if (retval > 0) {
					/* writable now; retry */
					goto retry;
				}

				err = php_socket_errno();
			} while (err == EINTR);
		}
		estr = php_socket_strerror(err, NULL, 0);
		php_error_docref(NULL, E_NOTICE, "send of " ZEND_LONG_FMT " bytes failed with errno=%ld %s",
				(zend_long)count, err, estr);
		efree(estr);
	}

	if (didwrite > 0) {
		php_stream_notify_progress_increment(PHP_STREAM_CONTEXT(stream), didwrite, 0);
	}

	if (didwrite < 0) {
		didwrite = 0;
	}

	return didwrite;
}

Project: php-src
File: xp_socket.c

PHPAPI php_stream *php_stream_generic_socket_factory(const char *proto, size_t protolen,
		const char *resourcename, size_t resourcenamelen,
		const char *persistent_id, int options, int flags,
		struct timeval *timeout,
		php_stream_context *context STREAMS_DC)
{
	php_stream *stream = NULL;
	php_netstream_data_t *sock;
	php_stream_ops *ops;

	/* which type of socket ? */
	if (strncmp(proto, "tcp", protolen) == 0) {
		ops = &php_stream_socket_ops;
	} else if (strncmp(proto, "udp", protolen) == 0) {
		ops = &php_stream_udp_socket_ops;
	}
#ifdef AF_UNIX
	else if (strncmp(proto, "unix", protolen) == 0) {
		ops = &php_stream_unix_socket_ops;
	} else if (strncmp(proto, "udg", protolen) == 0) {
		ops = &php_stream_unixdg_socket_ops;
	}
#endif
	else {
		/* should never happen */
		return NULL;
	}

	sock = pemalloc(sizeof(php_netstream_data_t), persistent_id ? 1 : 0);
	memset(sock, 0, sizeof(php_netstream_data_t));

	sock->is_blocked = 1;
	sock->timeout.tv_sec = FG(default_socket_timeout);
	sock->timeout.tv_usec = 0;

	/* we don't know the socket until we have determined if we are binding or
	 * connecting */
	sock->socket = -1;

	stream = php_stream_alloc_rel(ops, sock, persistent_id, "r+");

	if (stream == NULL)	{
		pefree(sock, persistent_id ? 1 : 0);
		return NULL;
	}

	if (flags == 0) {
		return stream;
	}

	return stream;
}

Project: php-src
File: xp_socket.c

static inline int php_tcp_sockop_accept(php_stream *stream, php_netstream_data_t *sock,
		php_stream_xport_param *xparam STREAMS_DC)
{
	int clisock;

	xparam->outputs.client = NULL;

	clisock = php_network_accept_incoming(sock->socket,
			xparam->want_textaddr ? &xparam->outputs.textaddr : NULL,
			xparam->want_addr ? &xparam->outputs.addr : NULL,
			xparam->want_addr ? &xparam->outputs.addrlen : NULL,
			xparam->inputs.timeout,
			xparam->want_errortext ? &xparam->outputs.error_text : NULL,
			&xparam->outputs.error_code
			);

	if (clisock >= 0) {
		php_netstream_data_t *clisockdata;

		clisockdata = emalloc(sizeof(*clisockdata));

		if (clisockdata == NULL) {
			close(clisock);
			/* technically a fatal error */
		} else {
			memcpy(clisockdata, sock, sizeof(*clisockdata));
			clisockdata->socket = clisock;

			xparam->outputs.client = php_stream_alloc_rel(stream->ops, clisockdata, NULL, "r+");
			if (xparam->outputs.client) {
				xparam->outputs.client->ctx = stream->ctx;
				if (stream->ctx) {
					GC_REFCOUNT(stream->ctx)++;
				}
			}
		}
	}

	return xparam->outputs.client == NULL ? -1 : 0;
}

Project: php-src
File: xp_socket.c

static inline int php_tcp_sockop_bind(php_stream *stream, php_netstream_data_t *sock,
		php_stream_xport_param *xparam)
{
	char *host = NULL;
	int portno, err;
	long sockopts = STREAM_SOCKOP_NONE;
	zval *tmpzval = NULL;

#ifdef AF_UNIX
	if (stream->ops == &php_stream_unix_socket_ops || stream->ops == &php_stream_unixdg_socket_ops) {
		struct sockaddr_un unix_addr;

		sock->socket = socket(PF_UNIX, stream->ops == &php_stream_unix_socket_ops ? SOCK_STREAM : SOCK_DGRAM, 0);

		if (sock->socket == SOCK_ERR) {
			if (xparam->want_errortext) {
				xparam->outputs.error_text = strpprintf(0, "Failed to create unix%s socket %s",
						stream->ops == &php_stream_unix_socket_ops ? "" : "datagram",
						strerror(errno));
			}
			return -1;
		}

		parse_unix_address(xparam, &unix_addr);

		return bind(sock->socket, (const struct sockaddr *)&unix_addr,
			(socklen_t) XtOffsetOf(struct sockaddr_un, sun_path) + xparam->inputs.namelen);
	}
#endif

	host = parse_ip_address(xparam, &portno);

	if (host == NULL) {
		return -1;
	}

#ifdef IPV6_V6ONLY
	if (PHP_STREAM_CONTEXT(stream)
		&& (tmpzval = php_stream_context_get_option(PHP_STREAM_CONTEXT(stream), "socket", "ipv6_v6only")) != NULL
		&& Z_TYPE_P(tmpzval) != IS_NULL
	) {
		sockopts |= STREAM_SOCKOP_IPV6_V6ONLY;
		sockopts |= STREAM_SOCKOP_IPV6_V6ONLY_ENABLED * zend_is_true(tmpzval);
	}
#endif

#ifdef SO_REUSEPORT
	if (PHP_STREAM_CONTEXT(stream)
		&& (tmpzval = php_stream_context_get_option(PHP_STREAM_CONTEXT(stream), "socket", "so_reuseport")) != NULL
		&& zend_is_true(tmpzval)
	) {
		sockopts |= STREAM_SOCKOP_SO_REUSEPORT;
	}
#endif

#ifdef SO_BROADCAST
	if (stream->ops == &php_stream_udp_socket_ops /* SO_BROADCAST is only applicable for UDP */
		&& PHP_STREAM_CONTEXT(stream)
		&& (tmpzval = php_stream_context_get_option(PHP_STREAM_CONTEXT(stream), "socket", "so_broadcast")) != NULL
		&& zend_is_true(tmpzval)
	) {
		sockopts |= STREAM_SOCKOP_SO_BROADCAST;
	}
#endif

	sock->socket = php_network_bind_socket_to_local_addr(host, portno,
			stream->ops == &php_stream_udp_socket_ops ? SOCK_DGRAM : SOCK_STREAM,
			sockopts,
			xparam->want_errortext ? &xparam->outputs.error_text : NULL,
			&err
			);

	if (host) {
		efree(host);
	}

	return sock->socket == -1 ? -1 : 0;
}

Project: php-src
File: xp_socket.c

static inline int php_tcp_sockop_connect(php_stream *stream, php_netstream_data_t *sock,
		php_stream_xport_param *xparam)
{
	char *host = NULL, *bindto = NULL;
	int portno, bindport = 0;
	int err = 0;
	int ret;
	zval *tmpzval = NULL;
	long sockopts = STREAM_SOCKOP_NONE;

#ifdef AF_UNIX
	if (stream->ops == &php_stream_unix_socket_ops || stream->ops == &php_stream_unixdg_socket_ops) {
		struct sockaddr_un unix_addr;

		sock->socket = socket(PF_UNIX, stream->ops == &php_stream_unix_socket_ops ? SOCK_STREAM : SOCK_DGRAM, 0);

		if (sock->socket == SOCK_ERR) {
			if (xparam->want_errortext) {
				xparam->outputs.error_text = strpprintf(0, "Failed to create unix socket");
			}
			return -1;
		}

		parse_unix_address(xparam, &unix_addr);

		ret = php_network_connect_socket(sock->socket,
				(const struct sockaddr *)&unix_addr, (socklen_t) XtOffsetOf(struct sockaddr_un, sun_path) + xparam->inputs.namelen,
				xparam->op == STREAM_XPORT_OP_CONNECT_ASYNC, xparam->inputs.timeout,
				xparam->want_errortext ? &xparam->outputs.error_text : NULL,
				&err);

		xparam->outputs.error_code = err;

		goto out;
	}
#endif

	host = parse_ip_address(xparam, &portno);

	if (host == NULL) {
		return -1;
	}

	if (PHP_STREAM_CONTEXT(stream) && (tmpzval = php_stream_context_get_option(PHP_STREAM_CONTEXT(stream), "socket", "bindto")) != NULL) {
		if (Z_TYPE_P(tmpzval) != IS_STRING) {
			if (xparam->want_errortext) {
				xparam->outputs.error_text = strpprintf(0, "local_addr context option is not a string.");
			}
			efree(host);
			return -1;
		}
		bindto = parse_ip_address_ex(Z_STRVAL_P(tmpzval), Z_STRLEN_P(tmpzval), &bindport, xparam->want_errortext, &xparam->outputs.error_text);
	}

#ifdef SO_BROADCAST
	if (stream->ops == &php_stream_udp_socket_ops /* SO_BROADCAST is only applicable for UDP */
		&& PHP_STREAM_CONTEXT(stream)
		&& (tmpzval = php_stream_context_get_option(PHP_STREAM_CONTEXT(stream), "socket", "so_broadcast")) != NULL
		&& zend_is_true(tmpzval)
	) {
		sockopts |= STREAM_SOCKOP_SO_BROADCAST;
	}
#endif

	/* Note: the test here for php_stream_udp_socket_ops is important, because we
	 * want the default to be TCP sockets so that the openssl extension can
	 * re-use this code. */

	sock->socket = php_network_connect_socket_to_host(host, portno,
			stream->ops == &php_stream_udp_socket_ops ? SOCK_DGRAM : SOCK_STREAM,
			xparam->op == STREAM_XPORT_OP_CONNECT_ASYNC,
			xparam->inputs.timeout,
			xparam->want_errortext ? &xparam->outputs.error_text : NULL,
			&err,
			bindto,
			bindport,
			sockopts
			);

	ret = sock->socket == -1 ? -1 : 0;
	xparam->outputs.error_code = err;

	if (host) {
		efree(host);
	}
	if (bindto) {
		efree(bindto);
	}

#ifdef AF_UNIX
out:
#endif

	if (ret >= 0 && xparam->op == STREAM_XPORT_OP_CONNECT_ASYNC && err == EINPROGRESS) {
		/* indicates pending connection */
		return 1;
	}

	return ret;
}

Project: php-src
File: xp_socket.c

static int php_tcp_sockop_set_option(php_stream *stream, int option, int value, void *ptrparam)
{
	php_netstream_data_t *sock = (php_netstream_data_t*)stream->abstract;
	php_stream_xport_param *xparam;

	switch(option) {
		case PHP_STREAM_OPTION_XPORT_API:
			xparam = (php_stream_xport_param *)ptrparam;

			switch(xparam->op) {
				case STREAM_XPORT_OP_CONNECT:
				case STREAM_XPORT_OP_CONNECT_ASYNC:
					xparam->outputs.returncode = php_tcp_sockop_connect(stream, sock, xparam);
					return PHP_STREAM_OPTION_RETURN_OK;

				case STREAM_XPORT_OP_BIND:
					xparam->outputs.returncode = php_tcp_sockop_bind(stream, sock, xparam);
					return PHP_STREAM_OPTION_RETURN_OK;


				case STREAM_XPORT_OP_ACCEPT:
					xparam->outputs.returncode = php_tcp_sockop_accept(stream, sock, xparam STREAMS_CC);
					return PHP_STREAM_OPTION_RETURN_OK;
				default:
					/* fall through */
					;
			}
	}
	return php_sockop_set_option(stream, option, value, ptrparam);
}

Project: php-src
File: xp_socket.c

static inline int sock_recvfrom(php_netstream_data_t *sock, char *buf, size_t buflen, int flags,
		zend_string **textaddr,
		struct sockaddr **addr, socklen_t *addrlen
		)
{
	int ret;
	int want_addr = textaddr || addr;

	if (want_addr) {
		php_sockaddr_storage sa;
		socklen_t sl = sizeof(sa);
		ret = recvfrom(sock->socket, buf, XP_SOCK_BUF_SIZE(buflen), flags, (struct sockaddr*)&sa, &sl);
		ret = (ret == SOCK_CONN_ERR) ? -1 : ret;
		if (sl) {
			php_network_populate_name_from_sockaddr((struct sockaddr*)&sa, sl,
					textaddr, addr, addrlen);
		} else {
			if (textaddr) {
				*textaddr = ZSTR_EMPTY_ALLOC();
			}
			if (addr) {
				*addr = NULL;
				*addrlen = 0;
			}
		}
	} else {
		ret = recv(sock->socket, buf, XP_SOCK_BUF_SIZE(buflen), flags);
		ret = (ret == SOCK_CONN_ERR) ? -1 : ret;
	}

	return ret;
}

Project: php-src
File: xp_socket.c

static inline int sock_sendto(php_netstream_data_t *sock, const char *buf, size_t buflen, int flags,
		struct sockaddr *addr, socklen_t addrlen
		)
{
	int ret;
	if (addr) {
		ret = sendto(sock->socket, buf, XP_SOCK_BUF_SIZE(buflen), flags, addr, XP_SOCK_BUF_SIZE(addrlen));

		return (ret == SOCK_CONN_ERR) ? -1 : ret;
	}
#ifdef PHP_WIN32
	return ((ret = send(sock->socket, buf, buflen > INT_MAX ? INT_MAX : (int)buflen, flags)) == SOCK_CONN_ERR) ? -1 : ret;
#else
	return ((ret = send(sock->socket, buf, buflen, flags)) == SOCK_CONN_ERR) ? -1 : ret;
#endif
}