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sockets.c
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sockets.c
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/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2003 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_02.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Chris Vandomelen <chrisv@b0rked.dhs.org> |
| Sterling Hughes <sterling@php.net> |
| Jason Greene <jason@php.net> |
| WinSock: Daniel Beulshausen <daniel@php4win.de> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#if HAVE_SOCKETS
#ifndef _XOPEN_SOURCE_EXTENDED
#define _XOPEN_SOURCE_EXTENDED
#endif
#define _XPG4_2
#define __EXTENSIONS__
#include "php_network.h"
#include "ext/standard/info.h"
#include "php_ini.h"
#ifndef PHP_WIN32
# include "php_sockets.h"
# include <sys/types.h>
# include <sys/socket.h>
# include <netdb.h>
# include <netinet/in.h>
# include <netinet/tcp.h>
# include <sys/un.h>
# include <arpa/inet.h>
# include <sys/time.h>
# include <unistd.h>
# include <errno.h>
# include <fcntl.h>
# include <signal.h>
# include <sys/uio.h>
# define IS_INVALID_SOCKET(a) (a->bsd_socket < 0)
# define set_errno(a) (errno = a)
# define set_h_errno(a) (h_errno = a)
#else /* windows */
# include "php_sockets.h"
# include "php_sockets_win.h"
# define IS_INVALID_SOCKET(a) (a->bsd_socket == INVALID_SOCKET)
#endif
ZEND_DECLARE_MODULE_GLOBALS(sockets)
#ifndef MSG_WAITALL
#ifdef LINUX
#define MSG_WAITALL 0x00000100
#else
#define MSG_WAITALL 0x00000000
#endif
#endif
#ifndef SUN_LEN
#define SUN_LEN(su) (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
#endif
#ifndef PF_INET
#define PF_INET AF_INET
#endif
static char *php_strerror(int error TSRMLS_DC);
#define PHP_NORMAL_READ 0x0001
#define PHP_BINARY_READ 0x0002
#define PHP_SOCKET_ERROR(socket,msg,errn) socket->error = errn; \
SOCKETS_G(last_error) = errn; \
php_error(E_WARNING, "%s() %s [%d]: %s", \
get_active_function_name(TSRMLS_C), msg, errn, php_strerror(errn TSRMLS_CC))
static int le_iov;
#define le_iov_name "Socket I/O vector"
static int le_socket;
#define le_socket_name "Socket"
static unsigned char first_through_third_args_force_ref[] =
{3, BYREF_FORCE, BYREF_FORCE, BYREF_FORCE};
static unsigned char second_and_third_args_force_ref[] =
{3, BYREF_NONE, BYREF_FORCE, BYREF_FORCE};
static unsigned char second_arg_of_four_force_ref[] =
{4, BYREF_NONE, BYREF_FORCE, BYREF_NONE, BYREF_NONE};
static unsigned char fourth_arg_force_ref[] =
{4, BYREF_NONE, BYREF_NONE, BYREF_NONE, BYREF_FORCE};
static unsigned char second_fifth_and_sixth_args_force_ref[] =
{6, BYREF_NONE, BYREF_FORCE, BYREF_NONE, BYREF_NONE, BYREF_FORCE, BYREF_FORCE};
static unsigned char third_through_seventh_args_force_ref[] =
{7, BYREF_NONE, BYREF_NONE, BYREF_FORCE, BYREF_FORCE, BYREF_FORCE, BYREF_FORCE, BYREF_FORCE};
/* {{{ sockets_functions[]
*/
function_entry sockets_functions[] = {
PHP_FE(socket_iovec_alloc, NULL)
PHP_FE(socket_iovec_free, NULL)
PHP_FE(socket_iovec_set, NULL)
PHP_FE(socket_iovec_fetch, NULL)
PHP_FE(socket_iovec_add, NULL)
PHP_FE(socket_iovec_delete, NULL)
PHP_FE(socket_select, first_through_third_args_force_ref)
PHP_FE(socket_create, NULL)
PHP_FE(socket_create_listen, NULL)
PHP_FE(socket_create_pair, fourth_arg_force_ref)
PHP_FE(socket_accept, NULL)
PHP_FE(socket_set_nonblock, NULL)
PHP_FE(socket_set_block, NULL)
PHP_FE(socket_listen, NULL)
PHP_FE(socket_close, NULL)
PHP_FE(socket_write, NULL)
PHP_FE(socket_read, NULL)
PHP_FE(socket_getsockname, second_and_third_args_force_ref)
PHP_FE(socket_getpeername, second_and_third_args_force_ref)
PHP_FE(socket_connect, NULL)
PHP_FE(socket_strerror, NULL)
PHP_FE(socket_bind, NULL)
PHP_FE(socket_recv, second_arg_of_four_force_ref)
PHP_FE(socket_send, NULL)
PHP_FE(socket_recvfrom, second_fifth_and_sixth_args_force_ref)
PHP_FE(socket_sendto, NULL)
#ifdef HAVE_CMSGHDR
PHP_FE(socket_recvmsg, third_through_seventh_args_force_ref)
#endif
PHP_FE(socket_sendmsg, NULL)
PHP_FE(socket_readv, NULL)
PHP_FE(socket_writev, NULL)
PHP_FE(socket_get_option, NULL)
PHP_FE(socket_set_option, NULL)
PHP_FE(socket_shutdown, NULL)
PHP_FE(socket_last_error, NULL)
PHP_FE(socket_clear_error, NULL)
/* for downwards compatability */
PHP_FALIAS(socket_getopt, socket_get_option, NULL)
PHP_FALIAS(socket_setopt, socket_set_option, NULL)
{NULL, NULL, NULL}
};
/* }}} */
zend_module_entry sockets_module_entry = {
STANDARD_MODULE_HEADER,
"sockets",
sockets_functions,
PHP_MINIT(sockets),
NULL,
PHP_RINIT(sockets),
PHP_RSHUTDOWN(sockets),
PHP_MINFO(sockets),
NO_VERSION_YET,
STANDARD_MODULE_PROPERTIES
};
#ifdef COMPILE_DL_SOCKETS
ZEND_GET_MODULE(sockets)
#endif
/* inet_ntop should be used instead of inet_ntoa */
int inet_ntoa_lock = 0;
static void php_destroy_iovec(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
unsigned int i;
php_iovec_t *iov = (php_iovec_t *) rsrc->ptr;
if (iov->count && iov->iov_array) {
for (i = 0; i < iov->count; i++) {
efree(iov->iov_array[i].iov_base);
}
efree(iov->iov_array);
efree(iov);
}
}
static void php_destroy_socket(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
php_socket *php_sock = (php_socket *) rsrc->ptr;
close(php_sock->bsd_socket);
efree(php_sock);
}
static int php_open_listen_sock(php_socket **php_sock, int port, int backlog TSRMLS_DC)
{
struct sockaddr_in la;
struct hostent *hp;
php_socket *sock = (php_socket*)emalloc(sizeof(php_socket));
*php_sock = sock;
#ifndef PHP_WIN32
if ((hp = gethostbyname("0.0.0.0")) == NULL) {
#else
if ((hp = gethostbyname("localhost")) == NULL) {
#endif
efree(sock);
return 0;
}
memcpy((char *) &la.sin_addr, hp->h_addr, hp->h_length);
la.sin_family = hp->h_addrtype;
la.sin_port = htons((unsigned short) port);
sock->bsd_socket = socket(PF_INET, SOCK_STREAM, 0);
if (IS_INVALID_SOCKET(sock)) {
PHP_SOCKET_ERROR(sock, "unable to create listening socket", errno);
efree(sock);
return 0;
}
sock->type = PF_INET;
if (bind(sock->bsd_socket, (struct sockaddr *)&la, sizeof(la)) < 0) {
PHP_SOCKET_ERROR(sock, "unable to bind to given adress", errno);
close(sock->bsd_socket);
efree(sock);
return 0;
}
if (listen(sock->bsd_socket, backlog) < 0) {
PHP_SOCKET_ERROR(sock, "unable to listen on socket", errno);
close(sock->bsd_socket);
efree(sock);
return 0;
}
return 1;
}
static int php_accept_connect(php_socket *in_sock, php_socket **new_sock, struct sockaddr *la TSRMLS_DC)
{
socklen_t salen;
php_socket *out_sock = (php_socket*)emalloc(sizeof(php_socket));
*new_sock = out_sock;
salen = sizeof(*la);
out_sock->bsd_socket = accept(in_sock->bsd_socket, la, &salen);
if (IS_INVALID_SOCKET(out_sock)) {
PHP_SOCKET_ERROR(out_sock, "unable to accept incoming connection", errno);
efree(out_sock);
return 0;
}
return 1;
}
/* {{{ php_read -- wrapper around read() so that it only reads to a \r or \n. */
static int php_read(int bsd_socket, void *buf, size_t maxlen, int flags)
{
int m = 0;
size_t n = 0;
int no_read = 0;
int nonblock = 0;
char *t = (char *) buf;
m = fcntl(bsd_socket, F_GETFL);
if (m < 0) {
return m;
}
nonblock = (m & O_NONBLOCK);
m = 0;
set_errno(0);
*t = '\0';
while (*t != '\n' && *t != '\r' && n < maxlen) {
if (m > 0) {
t++;
n++;
} else if (m == 0) {
no_read++;
if (nonblock && no_read >= 2) {
return n;
/* The first pass, m always is 0, so no_read becomes 1
* in the first pass. no_read becomes 2 in the second pass,
* and if this is nonblocking, we should return.. */
}
if (no_read > 200) {
set_errno(ECONNRESET);
return -1;
}
}
if (n < maxlen) {
m = recv(bsd_socket, (void *) t, 1, flags);
}
if (errno != 0 && errno != ESPIPE && errno != EAGAIN) {
return -1;
}
set_errno(0);
}
if (n < maxlen) {
n++;
/* The only reasons it makes it to here is
* if '\n' or '\r' are encountered. So, increase
* the return by 1 to make up for the lack of the
* '\n' or '\r' in the count (since read() takes
* place at the end of the loop..) */
}
return n;
}
/* }}} */
static char *php_strerror(int error TSRMLS_DC)
{
const char *buf;
#ifndef PHP_WIN32
if (error < -10000) {
error = -error - 10000;
#ifdef HAVE_HSTRERROR
buf = hstrerror(error);
#else
{
sprintf(SOCKETS_G(strerror_buf), "Host lookup error %d", error);
buf = SOCKETS_G(strerror_buf);
}
#endif
} else {
buf = strerror(error);
}
#else
{
LPTSTR tmp = NULL;
buf = NULL;
if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &tmp, 0, NULL)) {
strlcpy(SOCKETS_G(strerror_buf), (char *) tmp, 10000);
LocalFree(tmp);
buf = SOCKETS_G(strerror_buf);
}
}
#endif
return (buf ? (char *) buf : "");
}
/* Sets addr by hostname, or by ip in string form (AF_INET) */
static int php_set_inet_addr(struct sockaddr_in *sin, char *string, php_socket *php_sock TSRMLS_DC)
{
struct in_addr tmp;
struct hostent *host_entry;
if (inet_aton(string, &tmp)) {
sin->sin_addr.s_addr = tmp.s_addr;
} else {
if (! (host_entry = gethostbyname(string))) {
/* Note: < -10000 indicates a host lookup error */
#ifdef PHP_WIN32
PHP_SOCKET_ERROR(php_sock, "Host lookup failed", WSAGetLastError());
#else
PHP_SOCKET_ERROR(php_sock, "Host lookup failed", (-10000 - h_errno));
#endif
return 0;
}
if (host_entry->h_addrtype != AF_INET) {
php_error(E_WARNING, "%s() Host lookup failed: Non AF_INET domain returned on AF_INET socket", get_active_function_name(TSRMLS_C));
return 0;
}
memcpy(&(sin->sin_addr.s_addr), host_entry->h_addr_list[0], host_entry->h_length);
}
return 1;
}
static void php_sockets_init_globals(zend_sockets_globals *sockets_globals TSRMLS_DC)
{
sockets_globals->last_error = 0;
sockets_globals->strerror_buf = NULL;
}
/* {{{ PHP_MINIT_FUNCTION
*/
PHP_MINIT_FUNCTION(sockets)
{
struct protoent *pe;
ZEND_INIT_MODULE_GLOBALS(sockets, php_sockets_init_globals, NULL);
le_socket = zend_register_list_destructors_ex(php_destroy_socket, NULL, le_socket_name, module_number);
le_iov = zend_register_list_destructors_ex(php_destroy_iovec, NULL, le_iov_name, module_number);
REGISTER_LONG_CONSTANT("AF_UNIX", AF_UNIX, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AF_INET", AF_INET, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SOCK_STREAM", SOCK_STREAM, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SOCK_DGRAM", SOCK_DGRAM, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SOCK_RAW", SOCK_RAW, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SOCK_SEQPACKET",SOCK_SEQPACKET, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SOCK_RDM", SOCK_RDM, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MSG_OOB", MSG_OOB, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MSG_WAITALL", MSG_WAITALL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MSG_PEEK", MSG_PEEK, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MSG_DONTROUTE", MSG_DONTROUTE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_DEBUG", SO_DEBUG, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_REUSEADDR", SO_REUSEADDR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_KEEPALIVE", SO_KEEPALIVE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_DONTROUTE", SO_DONTROUTE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_LINGER", SO_LINGER, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_BROADCAST", SO_BROADCAST, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_OOBINLINE", SO_OOBINLINE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_SNDBUF", SO_SNDBUF, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_RCVBUF", SO_RCVBUF, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_SNDLOWAT", SO_SNDLOWAT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_RCVLOWAT", SO_RCVLOWAT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_SNDTIMEO", SO_SNDTIMEO, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_RCVTIMEO", SO_RCVTIMEO, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_TYPE", SO_TYPE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SO_ERROR", SO_ERROR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SOL_SOCKET", SOL_SOCKET, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SOMAXCONN", SOMAXCONN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PHP_NORMAL_READ", PHP_NORMAL_READ, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PHP_BINARY_READ", PHP_BINARY_READ, CONST_CS | CONST_PERSISTENT);
#ifndef WIN32
# include "unix_socket_constants.h"
#else
# include "win32_socket_constants.h"
#endif
if ((pe = getprotobyname("tcp"))) {
REGISTER_LONG_CONSTANT("SOL_TCP", pe->p_proto, CONST_CS | CONST_PERSISTENT);
}
if ((pe = getprotobyname("udp"))) {
REGISTER_LONG_CONSTANT("SOL_UDP", pe->p_proto, CONST_CS | CONST_PERSISTENT);
}
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION
*/
PHP_MINFO_FUNCTION(sockets)
{
php_info_print_table_start();
php_info_print_table_row(2, "Sockets Support", "enabled");
php_info_print_table_end();
}
/* }}} */
/* {{{ PHP_RINIT_FUNCTION */
PHP_RINIT_FUNCTION(sockets)
{
if ((SOCKETS_G(strerror_buf) = emalloc(16384)))
return SUCCESS;
return FAILURE;
}
/* }}} */
/* {{{ PHP_RSHUTDOWN_FUNCTION */
PHP_RSHUTDOWN_FUNCTION(sockets)
{
efree(SOCKETS_G(strerror_buf));
return SUCCESS;
}
/* }}} */
int php_sock_array_to_fd_set(zval *sock_array, fd_set *fds, SOCKET *max_fd TSRMLS_DC) {
zval **element;
php_socket *php_sock;
if (Z_TYPE_P(sock_array) != IS_ARRAY) return 0;
for (zend_hash_internal_pointer_reset(Z_ARRVAL_P(sock_array));
zend_hash_get_current_data(Z_ARRVAL_P(sock_array), (void **) &element) == SUCCESS;
zend_hash_move_forward(Z_ARRVAL_P(sock_array))) {
php_sock = (php_socket*) zend_fetch_resource(element TSRMLS_CC, -1, le_socket_name, NULL, 1, le_socket);
if (!php_sock) continue; /* If element is not a resource, skip it */
FD_SET(php_sock->bsd_socket, fds);
if (php_sock->bsd_socket > *max_fd) {
*max_fd = php_sock->bsd_socket;
}
}
return 1;
}
int php_sock_array_from_fd_set(zval *sock_array, fd_set *fds TSRMLS_DC) {
zval **element;
zval **dest_element;
php_socket *php_sock;
HashTable *new_hash;
if (Z_TYPE_P(sock_array) != IS_ARRAY) return 0;
ALLOC_HASHTABLE(new_hash);
zend_hash_init(new_hash, 0, NULL, ZVAL_PTR_DTOR, 0);
for (zend_hash_internal_pointer_reset(Z_ARRVAL_P(sock_array));
zend_hash_get_current_data(Z_ARRVAL_P(sock_array), (void **) &element) == SUCCESS;
zend_hash_move_forward(Z_ARRVAL_P(sock_array))) {
php_sock = (php_socket*) zend_fetch_resource(element TSRMLS_CC, -1, le_socket_name, NULL, 1, le_socket);
if (!php_sock) continue; /* If element is not a resource, skip it */
if (FD_ISSET(php_sock->bsd_socket, fds)) {
/* Add fd to new array */
zend_hash_next_index_insert(new_hash, (void *)element, sizeof(zval *), (void **)&dest_element);
if (dest_element) zval_add_ref(dest_element);
}
}
/* Destroy old array, add new one */
zend_hash_destroy(Z_ARRVAL_P(sock_array));
efree(Z_ARRVAL_P(sock_array));
zend_hash_internal_pointer_reset(new_hash);
Z_ARRVAL_P(sock_array) = new_hash;
return 1;
}
/* {{{ proto int socket_select(array &read_fds, array &write_fds, &array except_fds, int tv_sec[, int tv_usec])
Runs the select() system call on the sets mentioned with a timeout specified by tv_sec and tv_usec */
PHP_FUNCTION(socket_select)
{
zval *r_array, *w_array, *e_array, *sec;
struct timeval tv;
struct timeval *tv_p = NULL;
fd_set rfds, wfds, efds;
SOCKET max_fd = 0;
int retval, sets = 0;
long usec = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a!a!a!z!|l", &r_array, &w_array, &e_array, &sec, &usec) == FAILURE)
return;
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&efds);
if (r_array != NULL) sets += php_sock_array_to_fd_set(r_array, &rfds, &max_fd TSRMLS_CC);
if (w_array != NULL) sets += php_sock_array_to_fd_set(w_array, &wfds, &max_fd TSRMLS_CC);
if (e_array != NULL) sets += php_sock_array_to_fd_set(e_array, &efds, &max_fd TSRMLS_CC);
if (!sets) {
php_error(E_WARNING, "%s() no resource arrays were passed to select", get_active_function_name(TSRMLS_C));
RETURN_FALSE;
}
/* If seconds is not set to null, build the timeval, else we wait indefinitely */
if (sec != NULL) {
zval tmp;
if (Z_TYPE_P(sec) != IS_LONG) {
tmp = *sec;
zval_copy_ctor(&tmp);
convert_to_long(&tmp);
sec = &tmp;
}
/* Solaris + BSD do not like microsecond values which are >= 1 sec */
if (usec > 999999) {
tv.tv_sec = Z_LVAL_P(sec) + (usec / 1000000);
tv.tv_usec = usec % 1000000;
} else {
tv.tv_sec = Z_LVAL_P(sec);
tv.tv_usec = usec;
}
tv_p = &tv;
if (sec == &tmp) {
zval_dtor(&tmp);
}
}
retval = select(max_fd+1, &rfds, &wfds, &efds, tv_p);
if (retval == -1) {
SOCKETS_G(last_error) = errno;
php_error(E_WARNING, "%s() %s [%d]: %s", get_active_function_name(TSRMLS_C), "unable to select", errno, php_strerror(errno TSRMLS_CC));
RETURN_FALSE;
}
if (r_array != NULL) php_sock_array_from_fd_set(r_array, &rfds TSRMLS_CC);
if (w_array != NULL) php_sock_array_from_fd_set(w_array, &wfds TSRMLS_CC);
if (e_array != NULL) php_sock_array_from_fd_set(e_array, &efds TSRMLS_CC);
RETURN_LONG(retval);
}
/* }}} */
/* {{{ proto resource socket_create_listen(int port[, int backlog])
Opens a socket on port to accept connections */
PHP_FUNCTION(socket_create_listen)
{
php_socket *php_sock;
long port, backlog = 128;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l|l", &port, &backlog) == FAILURE)
return;
if (!php_open_listen_sock(&php_sock, port, backlog TSRMLS_CC)) {
RETURN_FALSE;
}
ZEND_REGISTER_RESOURCE(return_value, php_sock, le_socket);
}
/* }}} */
/* {{{ proto resource socket_accept(resource socket)
Accepts a connection on the listening socket fd */
PHP_FUNCTION(socket_accept)
{
zval *arg1;
php_socket *php_sock, *new_sock;
struct sockaddr_in sa;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &arg1) == FAILURE)
return;
ZEND_FETCH_RESOURCE(php_sock, php_socket *, &arg1, -1, le_socket_name, le_socket);
if (!php_accept_connect(php_sock, &new_sock, (struct sockaddr *) &sa TSRMLS_CC)) {
php_error(E_WARNING, "%s() unable to accept socket connection [%d]: %s",
get_active_function_name(TSRMLS_C), errno, php_strerror(errno TSRMLS_CC));
RETURN_FALSE;
}
ZEND_REGISTER_RESOURCE(return_value, new_sock, le_socket);
}
/* }}} */
/* {{{ proto bool socket_set_nonblock(resource socket)
Sets nonblocking mode on a socket resource */
PHP_FUNCTION(socket_set_nonblock)
{
zval *arg1;
php_socket *php_sock;
int flags;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &arg1) == FAILURE)
return;
ZEND_FETCH_RESOURCE(php_sock, php_socket *, &arg1, -1, le_socket_name, le_socket);
flags = fcntl(php_sock->bsd_socket, F_GETFL);
/* Safely append non blocking to other flags unless the get fails.
* Note: This does not abort on failure becuse getfl will always fail
* under the current win32 code. */
if (flags > -1) flags |= O_NONBLOCK;
else flags = O_NONBLOCK;
if (fcntl(php_sock->bsd_socket, F_SETFL, flags) > -1) {
RETURN_TRUE;
}
RETURN_FALSE;
}
/* }}} */
/* {{{ proto bool socket_set_block(resource socket)
Sets blocking mode on a socket resource */
PHP_FUNCTION(socket_set_block)
{
zval *arg1;
php_socket *php_sock;
int flags;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &arg1) == FAILURE)
return;
ZEND_FETCH_RESOURCE(php_sock, php_socket *, &arg1, -1, le_socket_name, le_socket);
flags = fcntl(php_sock->bsd_socket, F_GETFL);
/* Safely remove blocking from flags unless the get fails.
* Note: This does not abort on failure becuse getfl will always fail
* under the current win32 code. */
if (flags > -1) flags &= ~O_NONBLOCK;
else flags = 0;
if (fcntl(php_sock->bsd_socket, F_SETFL, flags) > -1) {
RETURN_TRUE;
}
RETURN_FALSE;
}
/* }}} */
/* {{{ proto bool socket_listen(resource socket[, int backlog])
Sets the maximum number of connections allowed to be waited for on the socket specified by fd */
PHP_FUNCTION(socket_listen)
{
zval *arg1;
php_socket *php_sock;
long backlog = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r|l", &arg1, &backlog) == FAILURE)
return;
ZEND_FETCH_RESOURCE(php_sock, php_socket *, &arg1, -1, le_socket_name, le_socket);
if (listen(php_sock->bsd_socket, backlog) != 0) {
PHP_SOCKET_ERROR(php_sock, "unable to listen on socket", errno);
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ proto void socket_close(resource socket)
Closes a file descriptor */
PHP_FUNCTION(socket_close)
{
zval *arg1;
php_socket *php_sock;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &arg1) == FAILURE)
return;
ZEND_FETCH_RESOURCE(php_sock, php_socket *, &arg1, -1, le_socket_name, le_socket);
zend_list_delete(Z_RESVAL_P(arg1));
}
/* }}} */
/* {{{ proto int socket_write(resource socket, string buf[, int length])
Writes the buffer to the socket resource, length is optional */
PHP_FUNCTION(socket_write)
{
zval *arg1;
php_socket *php_sock;
int retval, str_len;
long length;
char *str;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs|l", &arg1, &str, &str_len, &length) == FAILURE)
return;
ZEND_FETCH_RESOURCE(php_sock, php_socket *, &arg1, -1, le_socket_name, le_socket);
if (ZEND_NUM_ARGS() < 3) {
length = str_len;
}
#ifndef PHP_WIN32
retval = write(php_sock->bsd_socket, str, MIN(length, str_len));
#else
retval = send(php_sock->bsd_socket, str, min(length, str_len), 0);
#endif
if (retval < 0) {
PHP_SOCKET_ERROR(php_sock, "unable to write to socket", errno);
RETURN_FALSE;
}
RETURN_LONG(retval);
}
/* }}} */
/* {{{ proto string socket_read(resource socket, int length [, int type])
Reads a maximum of length bytes from socket */
PHP_FUNCTION(socket_read)
{
zval *arg1;
php_socket *php_sock;
char *tmpbuf;
int retval;
long length, type = PHP_BINARY_READ;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rl|l", &arg1, &length, &type) == FAILURE)
return;
/* overflow check */
if((length + 1) < 2) {
RETURN_FALSE;
}
tmpbuf = emalloc(length + 1);
ZEND_FETCH_RESOURCE(php_sock, php_socket *, &arg1, -1, le_socket_name, le_socket);
if (type == PHP_NORMAL_READ) {
retval = php_read(php_sock->bsd_socket, tmpbuf, length, 0);
} else {
retval = recv(php_sock->bsd_socket, tmpbuf, length, 0);
}
if (retval == -1) {
PHP_SOCKET_ERROR(php_sock, "unable to read from socket", errno);
efree(tmpbuf);
RETURN_FALSE;
}
tmpbuf = erealloc(tmpbuf, retval + 1);
tmpbuf[ retval ] = '\0' ;
RETURN_STRINGL(tmpbuf, retval, 0);
}
/* }}} */
/* {{{ proto bool socket_getsockname(resource socket, string &addr[, int &port])
Queries the remote side of the given socket which may either result in host/port or in a UNIX filesystem path, dependent on its type. */
PHP_FUNCTION(socket_getsockname)
{
zval *arg1, *addr, *port = NULL;
php_sockaddr_storage sa_storage;
php_socket *php_sock;
struct sockaddr *sa;
struct sockaddr_in *sin;
struct sockaddr_un *s_un;
char *addr_string;
socklen_t salen = sizeof(php_sockaddr_storage);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rz|z", &arg1, &addr, &port) == FAILURE)
return;
ZEND_FETCH_RESOURCE(php_sock, php_socket *, &arg1, -1, le_socket_name, le_socket);
sa = (struct sockaddr *) &sa_storage;
if (getsockname(php_sock->bsd_socket, sa, &salen) != 0) {
PHP_SOCKET_ERROR(php_sock, "unable to retrieve socket name", errno);
RETURN_FALSE;
}
switch (sa->sa_family) {
case AF_INET:
sin = (struct sockaddr_in *) sa;
while (inet_ntoa_lock == 1);
inet_ntoa_lock = 1;
addr_string = inet_ntoa(sin->sin_addr);
inet_ntoa_lock = 0;
zval_dtor(addr);
ZVAL_STRING(addr, addr_string, 1);
if (port != NULL) {
zval_dtor(port);
ZVAL_LONG(port, htons(sin->sin_port));
}
RETURN_TRUE;
case AF_UNIX:
s_un = (struct sockaddr_un *) sa;
zval_dtor(addr);
ZVAL_STRING(addr, s_un->sun_path, 1);
RETURN_TRUE;
default:
php_error(E_WARNING, "%s() Unsupported address family %d",
get_active_function_name(TSRMLS_C), sa->sa_family);
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool socket_getpeername(resource socket, string &addr[, int &port])
Queries the remote side of the given socket which may either result in host/port or in a UNIX filesystem path, dependent on its type. */
PHP_FUNCTION(socket_getpeername)
{
zval *arg1, *arg2, *arg3 = NULL;
php_sockaddr_storage sa_storage;
php_socket *php_sock;
struct sockaddr *sa;
struct sockaddr_in *sin;
struct sockaddr_un *s_un;
char *addr_string;
socklen_t salen = sizeof(php_sockaddr_storage);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rz|z", &arg1, &arg2, &arg3) == FAILURE)
return;
ZEND_FETCH_RESOURCE(php_sock, php_socket *, &arg1, -1, le_socket_name, le_socket);
sa = (struct sockaddr *) &sa_storage;
if (getpeername(php_sock->bsd_socket, sa, &salen) < 0) {
PHP_SOCKET_ERROR(php_sock, "unable to retrieve peer name", errno);
RETURN_FALSE;
}
switch (sa->sa_family) {
case AF_INET:
sin = (struct sockaddr_in *) sa;
while (inet_ntoa_lock == 1);
inet_ntoa_lock = 1;
addr_string = inet_ntoa(sin->sin_addr);
inet_ntoa_lock = 0;
zval_dtor(arg2);
ZVAL_STRING(arg2, addr_string, 1);
if (arg3 != NULL) {
zval_dtor(arg3);
ZVAL_LONG(arg3, htons(sin->sin_port));
}
RETURN_TRUE;
case AF_UNIX:
s_un = (struct sockaddr_un *) sa;
zval_dtor(arg2);
ZVAL_STRING(arg2, s_un->sun_path, 1);
RETURN_TRUE;
default:
php_error(E_WARNING, "%s() Unsupported address family %d",
get_active_function_name(TSRMLS_C), sa->sa_family);
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto resource socket_create(int domain, int type, int protocol)
Creates an endpoint for communication in the domain specified by domain, of type specified by type */
PHP_FUNCTION(socket_create)
{
long arg1, arg2, arg3;
php_socket *php_sock = (php_socket*)emalloc(sizeof(php_socket));
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "lll", &arg1, &arg2, &arg3) == FAILURE) {
efree(php_sock);
return;
}
if (arg1 != AF_UNIX && arg1 != AF_INET) {
php_error(E_WARNING, "%s() invalid socket domain [%ld] specified for argument 1, assuming AF_INET", get_active_function_name(TSRMLS_C), arg1);
arg1 = AF_INET;
}
if (arg2 > 10) {
php_error(E_WARNING, "%s() invalid socket type [%ld] specified for argument 2, assuming SOCK_STREAM", get_active_function_name(TSRMLS_C), arg2);
arg2 = SOCK_STREAM;
}
php_sock->bsd_socket = socket(arg1, arg2, arg3);
php_sock->type = arg1;
if (IS_INVALID_SOCKET(php_sock)) {
SOCKETS_G(last_error) = errno;
php_error(E_WARNING, "%s() Unable to create socket [%d]: %s",
get_active_function_name(TSRMLS_C), errno, php_strerror(errno TSRMLS_CC));
efree(php_sock);
RETURN_FALSE;
}
ZEND_REGISTER_RESOURCE(return_value, php_sock, le_socket);
}
/* }}} */
/* {{{ proto bool socket_connect(resource socket, string addr [, int port])
Opens a connection to addr:port on the socket specified by socket */
PHP_FUNCTION(socket_connect)
{
zval *arg1;
php_socket *php_sock;
struct sockaddr_in sin;
struct sockaddr_un s_un;
char *addr;
int retval, addr_len;