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|
/*
+----------------------------------------------------------------------+
| PHP version 4.0 |
+----------------------------------------------------------------------+
| Copyright (c) 1997, 1998, 1999, 2000 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: Stig Venaas <venaas@uninett.no> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "php.h"
#ifdef PHP_WIN32
#include <windows.h>
#include <winsock.h>
#define O_RDONLY _O_RDONLY
#include "win32/param.h"
#else
#include <sys/param.h>
#endif
#include <sys/types.h>
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifndef PHP_WIN32
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>
#else
int inet_aton(const char *, struct in_addr *);
#endif
#include "php_network.h"
#ifdef PHP_WIN32
#undef AF_UNIX
#endif
#if defined(AF_UNIX)
#include <sys/un.h>
#endif
#ifdef PHP_WIN32
# define SOCK_ERR INVALID_SOCKET
# define SOCK_CONN_ERR SOCKET_ERROR
#else
# define SOCK_ERR -1
# define SOCK_CONN_ERR -1
#endif
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);
}
static int php_network_getaddresses(const char *host, struct sockaddr ***sal)
{
struct sockaddr **sap;
if (host != NULL) {
#ifdef HAVE_GETADDRINFO
struct addrinfo hints, *res, *sai;
int n;
memset( &hints, '\0', sizeof(hints) );
hints.ai_family = AF_UNSPEC;
if (getaddrinfo(host, NULL, &hints, &res))
return -1;
sai = res;
for (n=2; (sai = sai->ai_next) != NULL; n++);
*sal = emalloc(n * sizeof(*sal));
if (*sal == NULL)
return -1;
sai = res;
sap = *sal;
do {
switch (sai->ai_family) {
# ifdef HAVE_IPV6
case AF_INET6: {
*sap = emalloc(sizeof(struct sockaddr_in6));
if (*sap == NULL) {
freeaddrinfo(res);
goto errexit;
}
*(struct sockaddr_in6 *)*sap =
*((struct sockaddr_in6 *)sai->ai_addr);
} break;
# endif
case AF_INET: {
*sap = emalloc(sizeof(struct sockaddr_in));
if (*sap == NULL) {
freeaddrinfo(res);
goto errexit;
}
*(struct sockaddr_in *)*sap =
*((struct sockaddr_in *)sai->ai_addr);
} break;
default:
*sap = NULL;
break;
}
sap++;
} while ((sai = sai->ai_next) != NULL);
freeaddrinfo(res);
#else
struct hostent *host_info;
struct in_addr in;
if (!inet_aton(host, &in)) {
/* XXX NOT THREAD SAFE */
host_info = gethostbyname(host);
if (host_info == NULL)
return -1;
in = *((struct in_addr *) host_info->h_addr);
}
*sal = emalloc(2 * sizeof(*sal));
if (*sal == NULL)
return -1;
sap = *sal;
*sap = emalloc(sizeof(struct sockaddr_in));
if (*sap == NULL)
goto errexit;
(*sap)->sa_family = AF_INET;
((struct sockaddr_in *)*sap)->sin_addr = in;
sap++;
#endif
*sap = NULL;
return 0;
errexit:
php_network_freeaddresses(*sal);
}
return -1;
}
/*
* Creates a socket of type socktype and connects to the given host and
* port, returns the created socket on success, else returns -1.
* timeout gives timeout in seconds, 0 means blocking mode.
*/
int php_hostconnect(char *host, unsigned short port, int socktype, int timeout)
{
int s;
struct sockaddr **sal, **psal;
if (php_network_getaddresses(host, &sal))
return -1;
psal = sal;
while (*sal != NULL) {
s = socket((*sal)->sa_family, socktype, 0);
if (s != SOCK_ERR) {
switch ((*sal)->sa_family) {
#if defined( HAVE_GETADDRINFO ) && defined( HAVE_IPV6 )
case AF_INET6: {
struct sockaddr_in6 *sa =
(struct sockaddr_in6 *)*sal;
sa->sin6_family = (*sal)->sa_family;
sa->sin6_port = htons(port);
if (connect(s, (struct sockaddr *) sa,
sizeof(*sa)) != SOCK_CONN_ERR)
goto ok;
} break;
#endif
case AF_INET: {
struct sockaddr_in *sa =
(struct sockaddr_in *)*sal;
sa->sin_family = (*sal)->sa_family;
sa->sin_port = htons(port);
if (connect(s, (struct sockaddr *) sa,
sizeof(*sa)) != SOCK_CONN_ERR)
goto ok;
} break;
}
close (s);
}
sal++;
}
php_network_freeaddresses(psal);
return -1;
ok:
php_network_freeaddresses(psal);
return s;
}
/*
* Local variables:
* tab-width: 8
* c-basic-offset: 8
* End:
*/
|
