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37f135ceef
php-src/main/network.c
Wez Furlong 37f135ceef Add stream_socket_sendto and stream_socket_recvfrom which work very much 
like sendto() and recvfrom() syscalls.
2003-11-29 21:46:50 +00:00

1038 lines
24 KiB
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/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2003 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_0.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. |
+----------------------------------------------------------------------+
| Author: Stig Venaas <venaas@uninett.no> |
| Streams work by Wez Furlong <wez@thebrainroom.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
/*#define DEBUG_MAIN_NETWORK 1*/
#include "php.h"
#include <stddef.h>
#ifdef PHP_WIN32
#define O_RDONLY _O_RDONLY
#include "win32/param.h"
#elif defined(NETWARE)
#ifdef NEW_LIBC
#include <sys/timeval.h>
#include <sys/param.h>
#else
#include "netware/time_nw.h"
#endif
#else
#include <sys/param.h>
#endif
#include <sys/types.h>
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifndef _FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#if HAVE_SYS_POLL_H
#include <sys/poll.h>
#endif
#if defined(NETWARE)
#ifdef USE_WINSOCK
/*#include <ws2nlm.h>*/
#include <novsock2.h>
#else
/* New headers for socket stuff */
#ifdef NEW_LIBC
#include <netinet/in.h>
#include <netdb.h>
#include <sys/select.h>
#endif
#include <sys/socket.h>
#endif
#elif !defined(PHP_WIN32)
#include <netinet/in.h>
#include <netdb.h>
#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#endif
#ifndef HAVE_INET_ATON
int inet_aton(const char *, struct in_addr *);
#endif
#include "php_network.h"
#if defined(PHP_WIN32) || defined(__riscos__) || defined(NETWARE)
#undef AF_UNIX
#endif
#if defined(AF_UNIX)
#include <sys/un.h>
#endif
#include "ext/standard/file.h"
#ifdef PHP_WIN32
# include "win32/time.h"
# define SOCK_ERR INVALID_SOCKET
# define SOCK_CONN_ERR SOCKET_ERROR
# define PHP_TIMEOUT_ERROR_VALUE WSAETIMEDOUT
#else
# define SOCK_ERR -1
# define SOCK_CONN_ERR -1
# define PHP_TIMEOUT_ERROR_VALUE ETIMEDOUT
#endif
#ifdef HAVE_GETADDRINFO
#ifdef HAVE_GAI_STRERROR
# define PHP_GAI_STRERROR(x) (gai_strerror(x))
#else
# define PHP_GAI_STRERROR(x) (php_gai_strerror(x))
/* {{{ php_gai_strerror
*/
static char *php_gai_strerror(int code)
{
static struct {
int code;
const char *msg;
} values[] = {
# ifdef EAI_ADDRFAMILY
{EAI_ADDRFAMILY, "Address family for hostname not supported"},
# endif
{EAI_AGAIN, "Temporary failure in name resolution"},
{EAI_BADFLAGS, "Bad value for ai_flags"},
{EAI_FAIL, "Non-recoverable failure in name resolution"},
{EAI_FAMILY, "ai_family not supported"},
{EAI_MEMORY, "Memory allocation failure"},
# ifdef EAI_NODATA
{EAI_NODATA, "No address associated with hostname"},
# endif
{EAI_NONAME, "Name or service not known"},
{EAI_SERVICE, "Servname not supported for ai_socktype"},
{EAI_SOCKTYPE, "ai_socktype not supported"},
{EAI_SYSTEM, "System error"},
{0, NULL}
};
int i;
for (i = 0; values[i].msg != NULL; i++) {
if (values[i].code == code) {
return (char *)values[i].msg;
}
}
return "Unknown error";
}
/* }}} */
#endif
#endif
/* {{{ php_network_freeaddresses
*/
static void php_network_freeaddresses(struct sockaddr **sal)
{
struct sockaddr **sap;
if (sal == NULL)
return;
for (sap = sal; *sap != NULL; sap++)
efree(*sap);
efree(sal);
}
/* }}} */
/* {{{ php_network_getaddresses
* Returns number of addresses, 0 for none/error
*/
static int php_network_getaddresses(const char *host, int socktype, struct sockaddr ***sal, char **error_string TSRMLS_DC)
{
struct sockaddr **sap;
int n;
#ifdef HAVE_GETADDRINFO
static int ipv6_borked = -1; /* the way this is used *is* thread safe */
struct addrinfo hints, *res, *sai;
#else
struct hostent *host_info;
struct in_addr in;
#endif
if (host == NULL) {
return 0;
}
#ifdef HAVE_GETADDRINFO
memset(&hints, '\0', sizeof(hints));
hints.ai_family = AF_INET; /* default to regular inet (see below) */
hints.ai_socktype = socktype;
# ifdef HAVE_IPV6
/* probe for a working IPv6 stack; even if detected as having v6 at compile
* time, at runtime some stacks are slow to resolve or have other issues
* if they are not correctly configured.
* static variable use is safe here since simple store or fetch operations
* are atomic and because the actual probe process is not in danger of
* collisions or race conditions. */
if (ipv6_borked == -1) {
int s;
s = socket(PF_INET6, SOCK_DGRAM, 0);
if (s == SOCK_ERR) {
ipv6_borked = 1;
} else {
ipv6_borked = 0;
closesocket(s);
}
}
hints.ai_family = ipv6_borked ? AF_INET : AF_UNSPEC;
# endif
if ((n = getaddrinfo(host, NULL, &hints, &res))) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "php_network_getaddresses: getaddrinfo failed: %s", PHP_GAI_STRERROR(n));
return 0;
} else if (res == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "php_network_getaddresses: getaddrinfo failed (null result pointer)");
return 0;
}
sai = res;
for (n = 1; (sai = sai->ai_next) != NULL; n++)
;
*sal = safe_emalloc((n + 1), sizeof(*sal), 0);
sai = res;
sap = *sal;
do {
*sap = emalloc(sai->ai_addrlen);
memcpy(*sap, sai->ai_addr, sai->ai_addrlen);
sap++;
} while ((sai = sai->ai_next) != NULL);
freeaddrinfo(res);
#else
if (!inet_aton(host, &in)) {
/* XXX NOT THREAD SAFE (is safe under win32) */
host_info = gethostbyname(host);
if (host_info == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "php_network_getaddresses: gethostbyname failed");
return 0;
}
in = *((struct in_addr *) host_info->h_addr);
}
*sal = safe_emalloc(2, sizeof(*sal), 0);
sap = *sal;
*sap = emalloc(sizeof(struct sockaddr_in));
(*sap)->sa_family = AF_INET;
((struct sockaddr_in *)*sap)->sin_addr = in;
sap++;
n = 1;
#endif
*sap = NULL;
return n;
}
/* }}} */
#ifndef O_NONBLOCK
#define O_NONBLOCK O_NDELAY
#endif
#if !defined(__BEOS__)
# define HAVE_NON_BLOCKING_CONNECT 1
# ifdef PHP_WIN32
typedef u_long php_non_blocking_flags_t;
# define SET_SOCKET_BLOCKING_MODE(sock, save) \
save = TRUE; ioctlsocket(sock, FIONBIO, &save)
# define RESTORE_SOCKET_BLOCKING_MODE(sock, save) \
ioctlsocket(sock, FIONBIO, &save)
# else
typedef int php_non_blocking_flags_t;
# define SET_SOCKET_BLOCKING_MODE(sock, save) \
save = fcntl(sock, F_GETFL, 0); \
fcntl(sock, F_SETFL, save | O_NONBLOCK)
# define RESTORE_SOCKET_BLOCKING_MODE(sock, save) \
fcntl(sock, F_SETFL, save)
# endif
#endif
/* Connect to a socket using an interruptible connect with optional timeout.
* Optionally, the connect can be made asynchronously, which will implicitly
* enable non-blocking mode on the socket.
* */
/* {{{ php_network_connect_socket */
PHPAPI int php_network_connect_socket(php_socket_t sockfd,
const struct sockaddr *addr,
socklen_t addrlen,
int asynchronous,
struct timeval *timeout,
char **error_string,
int *error_code)
{
#if HAVE_NON_BLOCKING_CONNECT
php_non_blocking_flags_t orig_flags;
int n;
int error = 0;
socklen_t len;
int ret = 0;
fd_set rset;
fd_set wset;
fd_set eset;
SET_SOCKET_BLOCKING_MODE(sockfd, orig_flags);
if ((n = connect(sockfd, addr, addrlen)) < 0) {
error = php_socket_errno();
if (error_code) {
*error_code = error;
}
if (error != EINPROGRESS) {
if (error_string) {
*error_string = php_socket_strerror(error, NULL, 0);
}
return -1;
}
if (asynchronous && error == EINPROGRESS) {
/* this is fine by us */
return 0;
}
}
if (n == 0) {
goto ok;
}
FD_ZERO(&rset);
FD_ZERO(&eset);
FD_SET(sockfd, &rset);
FD_SET(sockfd, &eset);
wset = rset;
if ((n = select(sockfd + 1, &rset, &wset, &eset, timeout)) == 0) {
error = PHP_TIMEOUT_ERROR_VALUE;
}
if(FD_ISSET(sockfd, &rset) || FD_ISSET(sockfd, &wset)) {
len = sizeof(error);
/*
BSD-derived systems set errno correctly
Solaris returns -1 from getsockopt in case of error
*/
if (getsockopt(sockfd, SOL_SOCKET, SO_ERROR, (char*)&error, &len) < 0) {
ret = -1;
}
} else {
/* whoops: sockfd has disappeared */
ret = -1;
}
ok:
if (!asynchronous) {
/* back to blocking mode */
RESTORE_SOCKET_BLOCKING_MODE(sockfd, orig_flags);
}
if (error_code) {
*error_code = error;
}
if (error && error_string) {
*error_string = php_socket_strerror(error, NULL, 0);
ret = -1;
}
return ret;
#else
if (asynchronous) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Asynchronous connect() not supported on this platform");
}
return connect(sockfd, addr, addrlen);
#endif
}
/* }}} */
/* {{{ sub_times */
static inline void sub_times(struct timeval a, struct timeval b, struct timeval *result)
{
result->tv_usec = a.tv_usec - b.tv_usec;
if (result->tv_usec < 0L) {
a.tv_sec--;
result->tv_usec += 1000000L;
}
result->tv_sec = a.tv_sec - b.tv_sec;
if (result->tv_sec < 0L) {
result->tv_sec++;
result->tv_usec -= 1000000L;
}
}
/* }}} */
/* Bind to a local IP address.
* Returns the bound socket, or -1 on failure.
* */
/* {{{ php_network_bind_socket_to_local_addr */
php_socket_t php_network_bind_socket_to_local_addr(const char *host, unsigned port,
int socktype, char **error_string, int *error_code
TSRMLS_DC)
{
int num_addrs, n, err = 0;
php_socket_t sock;
struct sockaddr **sal, **psal, *sa;
socklen_t socklen;
num_addrs = php_network_getaddresses(host, socktype, &psal, error_string TSRMLS_CC);
if (num_addrs == 0) {
/* could not resolve address(es) */
return -1;
}
for (sal = psal; *sal != NULL; sal++) {
sa = *sal;
/* create a socket for this address */
sock = socket(sa->sa_family, socktype, 0);
if (sock == SOCK_ERR) {
continue;
}
switch (sa->sa_family) {
#if HAVE_GETADDRINFO && HAVE_IPV6
case AF_INET6:
((struct sockaddr_in6 *)sa)->sin6_family = sa->sa_family;
((struct sockaddr_in6 *)sa)->sin6_port = htons(port);
socklen = sizeof(struct sockaddr_in6);
break;
#endif
case AF_INET:
((struct sockaddr_in *)sa)->sin_family = sa->sa_family;
((struct sockaddr_in *)sa)->sin_port = htons(port);
socklen = sizeof(struct sockaddr_in);
break;
default:
/* Unknown family */
socklen = 0;
sa = NULL;
}
if (sa) {
/* attempt to bind */
#ifdef SO_REUSEADDR
{
int val = 1;
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char*)&val, sizeof(val));
}
#endif
n = bind(sock, sa, socklen);
if (n != SOCK_CONN_ERR) {
goto bound;
}
err = php_socket_errno();
}
close(sock);
}
sock = -1;
if (error_code) {
*error_code = err;
}
if (error_string) {
*error_string = php_socket_strerror(err, NULL, 0);
}
bound:
php_network_freeaddresses(psal);
return sock;
}
/* }}} */
PHPAPI int php_network_parse_network_address_with_port(const char *addr, long addrlen, struct sockaddr *sa, socklen_t *sl TSRMLS_DC)
{
char *colon;
char *host = NULL;
int is_v6;
char *tmp;
int ret = FAILURE;
short port;
struct sockaddr_in *in4 = (struct sockaddr_in*)sa;
struct sockaddr **sal, **psal;
int n;
char *errstr = NULL;
#ifdef HAVE_IPV6
char *p;
struct sockaddr_in6 *in6 = (struct sockaddr_in6*)sa;
#endif
if (*addr == '[') {
colon = memchr(addr + 1, ']', addrlen-1);
if (!colon || colon[1] != ':') {
return 0;
}
port = atoi(colon + 2);
addr++;
} else {
colon = memchr(addr, ':', addrlen);
port = atoi(colon + 1);
}
tmp = estrndup(addr, colon - addr);
/* first, try interpreting the address as a numeric address */
#if HAVE_IPV6 && HAVE_INET_PTON
if (inet_pton(AF_INET6, tmp, &in6->sin6_addr) > 0) {
in6->sin6_port = htons(port);
in6->sin6_family = AF_INET6;
*sl = sizeof(struct sockaddr_in6);
ret = SUCCESS;
goto out;
}
#endif
if (inet_aton(tmp, &in4->sin_addr) > 0) {
in4->sin_port = htons(port);
in4->sin_family = AF_INET;
*sl = sizeof(struct sockaddr_in);
ret = SUCCESS;
goto out;
}
/* looks like we'll need to resolve it */
n = php_network_getaddresses(tmp, SOCK_DGRAM, &psal, &errstr TSRMLS_CC);
if (n == 0) {
if (errstr) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to resolve `%s': %s", tmp, errstr);
STR_FREE(errstr);
}
goto out;
}
/* copy the details from the first item */
switch ((*psal)->sa_family) {
#if HAVE_GETADDRINFO && HAVE_IPV6
case AF_INET6:
*in6 = **(struct sockaddr_in6**)psal;
in6->sin6_port = htons(port);
*sl = sizeof(struct sockaddr_in6);
ret = SUCCESS;
break;
#endif
case AF_INET:
*in4 = **(struct sockaddr_in**)psal;
in4->sin_port = htons(port);
*sl = sizeof(struct sockaddr_in);
ret = SUCCESS;
break;
}
php_network_freeaddresses(psal);
out:
STR_FREE(tmp);
return ret;
}
PHPAPI void php_network_populate_name_from_sockaddr(
/* input address */
struct sockaddr *sa, socklen_t sl,
/* output readable address */
char **textaddr, long *textaddrlen,
/* output address */
struct sockaddr **addr,
socklen_t *addrlen
TSRMLS_DC)
{
if (addr) {
*addr = emalloc(sl);
memcpy(*addr, sa, sl);
*addrlen = sl;
}
if (textaddr) {
#if HAVE_IPV6 && HAVE_INET_NTOP
char abuf[256];
#endif
char *buf = NULL;
switch (sa->sa_family) {
case AF_INET:
/* generally not thread safe, but it *is* thread safe under win32 */
buf = inet_ntoa(((struct sockaddr_in*)sa)->sin_addr);
if (buf) {
*textaddrlen = strlen(buf);
*textaddr = estrndup(buf, *textaddrlen);
}
break;
#if HAVE_IPV6 && HAVE_INET_NTOP
case AF_INET6:
buf = (char*)inet_ntop(sa->sa_family, &((struct sockaddr_in6*)sa)->sin6_addr, (char *)&abuf, sizeof(abuf));
if (buf) {
*textaddrlen = strlen(buf);
*textaddr = estrndup(buf, *textaddrlen);
}
break;
#endif
#ifdef AF_UNIX
case AF_UNIX:
{
struct sockaddr_un *ua = (struct sockaddr_un*)sa;
if (ua->sun_path[0] == '\0') {
/* abstract name */
int len = strlen(ua->sun_path + 1) + 1;
*textaddrlen = len;
*textaddr = emalloc(len + 1);
memcpy(*textaddr, ua->sun_path, len);
(*textaddr)[len] = '\0';
} else {
*textaddrlen = strlen(ua->sun_path);
*textaddr = estrndup(ua->sun_path, *textaddrlen);
}
}
break;
#endif
}
}
}
PHPAPI int php_network_get_peer_name(php_socket_t sock,
char **textaddr, long *textaddrlen,
struct sockaddr **addr,
socklen_t *addrlen
TSRMLS_DC)
{
php_sockaddr_storage sa;
socklen_t sl = sizeof(sa);
if (getpeername(sock, (struct sockaddr*)&sa, &sl) == 0) {
php_network_populate_name_from_sockaddr((struct sockaddr*)&sa, sl,
textaddr, textaddrlen,
addr, addrlen
TSRMLS_CC);
return 0;
}
return -1;
}
PHPAPI int php_network_get_sock_name(php_socket_t sock,
char **textaddr, long *textaddrlen,
struct sockaddr **addr,
socklen_t *addrlen
TSRMLS_DC)
{
php_sockaddr_storage sa;
socklen_t sl = sizeof(sa);
if (getsockname(sock, (struct sockaddr*)&sa, &sl) == 0) {
php_network_populate_name_from_sockaddr((struct sockaddr*)&sa, sl,
textaddr, textaddrlen,
addr, addrlen
TSRMLS_CC);
return 0;
}
return -1;
}
/* Accept a client connection from a server socket,
* using an optional timeout.
* Returns the peer address in addr/addrlen (it will emalloc
* these, so be sure to efree the result).
* If you specify textaddr/textaddrlen, a text-printable
* version of the address will be emalloc'd and returned.
* */
/* {{{ php_network_accept_incoming */
PHPAPI php_socket_t php_network_accept_incoming(php_socket_t srvsock,
char **textaddr, long *textaddrlen,
struct sockaddr **addr,
socklen_t *addrlen,
struct timeval *timeout,
char **error_string,
int *error_code
TSRMLS_DC)
{
php_socket_t clisock = -1;
fd_set rset;
int error = 0, n;
php_sockaddr_storage sa;
socklen_t sl;
FD_ZERO(&rset);
FD_SET(srvsock, &rset);
n = select(srvsock + 1, &rset, NULL, NULL, timeout);
if (n == 0) {
error = PHP_TIMEOUT_ERROR_VALUE;
} else if (n == -1) {
error = php_socket_errno();
} else if (FD_ISSET(srvsock, &rset)) {
sl = sizeof(sa);
clisock = accept(srvsock, (struct sockaddr*)&sa, &sl);
if (clisock >= 0) {
php_network_populate_name_from_sockaddr((struct sockaddr*)&sa, sl,
textaddr, textaddrlen,
addr, addrlen
TSRMLS_CC);
} else {
error = php_socket_errno();
}
}
if (error_code) {
*error_code = error;
}
if (error_string) {
*error_string = php_socket_strerror(error, NULL, 0);
}
return clisock;
}
/* }}} */
/* Connect to a remote host using an interruptible connect with optional timeout.
* Optionally, the connect can be made asynchronously, which will implicitly
* enable non-blocking mode on the socket.
* Returns the connected (or connecting) socket, or -1 on failure.
* */
/* {{{ php_network_connect_socket_to_host */
php_socket_t php_network_connect_socket_to_host(const char *host, unsigned short port,
int socktype, int asynchronous, struct timeval *timeout, char **error_string,
int *error_code
TSRMLS_DC)
{
int num_addrs, n, fatal = 0;
php_socket_t sock;
struct sockaddr **sal, **psal, *sa;
struct timeval working_timeout;
socklen_t socklen;
#if HAVE_GETTIMEOFDAY
struct timeval limit_time, time_now;
#endif
num_addrs = php_network_getaddresses(host, socktype, &psal, error_string TSRMLS_CC);
if (num_addrs == 0) {
/* could not resolve address(es) */
return -1;
}
if (timeout) {
memcpy(&working_timeout, timeout, sizeof(working_timeout));
#if HAVE_GETTIMEOFDAY
gettimeofday(&limit_time, NULL);
limit_time.tv_sec += working_timeout.tv_sec;
limit_time.tv_usec += working_timeout.tv_usec;
if (limit_time.tv_usec >= 1000000) {
limit_time.tv_usec -= 1000000;
limit_time.tv_sec++;
}
#endif
}
for (sal = psal; !fatal && *sal != NULL; sal++) {
sa = *sal;
/* create a socket for this address */
sock = socket(sa->sa_family, socktype, 0);
if (sock == SOCK_ERR) {
continue;
}
switch (sa->sa_family) {
#if HAVE_GETADDRINFO && HAVE_IPV6
case AF_INET6:
((struct sockaddr_in6 *)sa)->sin6_family = sa->sa_family;
((struct sockaddr_in6 *)sa)->sin6_port = htons(port);
socklen = sizeof(struct sockaddr_in6);
break;
#endif
case AF_INET:
((struct sockaddr_in *)sa)->sin_family = sa->sa_family;
((struct sockaddr_in *)sa)->sin_port = htons(port);
socklen = sizeof(struct sockaddr_in);
break;
default:
/* Unknown family */
socklen = 0;
sa = NULL;
}
if (sa) {
/* make a connection attempt */
n = php_network_connect_socket(sock, sa, socklen, asynchronous,
timeout ? &working_timeout : NULL,
error_string, error_code);
if (n != SOCK_CONN_ERR) {
goto connected;
}
/* adjust timeout for next attempt */
#if HAVE_GETTIMEOFDAY
if (timeout) {
gettimeofday(&time_now, NULL);
if (timercmp(&time_now, &limit_time, >=)) {
/* time limit expired; don't attempt any further connections */
fatal = 1;
} else {
/* work out remaining time */
sub_times(limit_time, time_now, &working_timeout);
}
}
#else
if (err == PHP_TIMEOUT_ERROR_VALUE) {
/* Don't even bother trying to connect to the next alternative;
* we have no way to determine how long we have already taken
* and it is quite likely that the next attempt will fail too. */
fatal = 1;
} else {
/* re-use the same initial timeout.
* Not the best thing, but in practice it should be good-enough */
if (timeout) {
memcpy(&working_timeout, timeout, sizeof(working_timeout));
}
}
#endif
}
close(sock);
}
sock = -1;
connected:
php_network_freeaddresses(psal);
return sock;
}
/* }}} */
/* {{{ php_any_addr
* Fills the any (wildcard) address into php_sockaddr_storage
*/
void php_any_addr(int family, php_sockaddr_storage *addr, unsigned short port)
{
memset(addr, 0, sizeof(php_sockaddr_storage));
switch (family) {
#ifdef HAVE_IPV6
case AF_INET6: {
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) addr;
sin6->sin6_family = AF_INET6;
sin6->sin6_port = htons(port);
sin6->sin6_addr = in6addr_any;
break;
}
#endif
case AF_INET: {
struct sockaddr_in *sin = (struct sockaddr_in *) addr;
sin->sin_family = AF_INET;
sin->sin_port = htons(port);
sin->sin_addr.s_addr = htonl(INADDR_ANY);
break;
}
}
}
/* }}} */
/* {{{ php_sockaddr_size
* Returns the size of struct sockaddr_xx for the family
*/
int php_sockaddr_size(php_sockaddr_storage *addr)
{
switch (((struct sockaddr *)addr)->sa_family) {
case AF_INET:
return sizeof(struct sockaddr_in);
#ifdef HAVE_IPV6
case AF_INET6:
return sizeof(struct sockaddr_in6);
#endif
#ifdef AF_UNIX
case AF_UNIX:
return sizeof(struct sockaddr_un);
#endif
default:
return 0;
}
}
/* }}} */
/* Given a socket error code, if buf == NULL:
* emallocs storage for the error message and returns
* else
* sprintf message into provided buffer and returns buf
*/
/* {{{ php_socket_strerror */
PHPAPI char *php_socket_strerror(long err, char *buf, size_t bufsize)
{
#ifndef PHP_WIN32
char *errstr;
errstr = strerror(err);
if (buf == NULL) {
buf = estrdup(errstr);
} else {
strncpy(buf, errstr, bufsize);
}
return buf;
#else
char *sysbuf;
int free_it = 1;
if (!FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
err,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&sysbuf,
0,
NULL)) {
free_it = 0;
sysbuf = "Unknown Error";
}
if (buf == NULL) {
buf = estrdup(sysbuf);
} else {
strncpy(buf, sysbuf, bufsize);
}
if (free_it) {
LocalFree(sysbuf);
}
return buf;
#endif
}
/* }}} */
/* deprecated */
PHPAPI php_stream *_php_stream_sock_open_from_socket(php_socket_t socket, const char *persistent_id STREAMS_DC TSRMLS_DC)
{
php_stream *stream;
php_netstream_data_t *sock;
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;
sock->socket = socket;
stream = php_stream_alloc_rel(&php_stream_generic_socket_ops, sock, persistent_id, "r+");
stream->flags |= PHP_STREAM_FLAG_AVOID_BLOCKING;
if (stream == NULL)
pefree(sock, persistent_id ? 1 : 0);
return stream;
}
PHPAPI php_stream *_php_stream_sock_open_host(const char *host, unsigned short port,
int socktype, struct timeval *timeout, const char *persistent_id STREAMS_DC TSRMLS_DC)
{
char *res;
long reslen;
php_stream *stream;
reslen = spprintf(&res, 0, "tcp://%s:%d", host, port);
stream = php_stream_xport_create(res, reslen, ENFORCE_SAFE_MODE | REPORT_ERRORS,
STREAM_XPORT_CLIENT | STREAM_XPORT_CONNECT, persistent_id, timeout, NULL, NULL, NULL);
efree(res);
return stream;
}
PHPAPI int php_set_sock_blocking(int socketd, int block TSRMLS_DC)
{
int ret = SUCCESS;
int flags;
int myflag = 0;
#ifdef PHP_WIN32
/* with ioctlsocket, a non-zero sets nonblocking, a zero sets blocking */
flags = !block;
if (ioctlsocket(socketd, FIONBIO, &flags)==SOCKET_ERROR){
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", WSAGetLastError());
ret = FALSE;
}
#else
flags = fcntl(socketd, F_GETFL);
#ifdef O_NONBLOCK
myflag = O_NONBLOCK; /* POSIX version */
#elif defined(O_NDELAY)
myflag = O_NDELAY; /* old non-POSIX version */
#endif
if (!block) {
flags |= myflag;
} else {
flags &= ~myflag;
}
fcntl(socketd, F_SETFL, flags);
#endif
return ret;
}
/*
* Local variables:
* tab-width: 8
* c-basic-offset: 8
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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