+++ /dev/null
-// natInetAddress.cc
-
-/* Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation
-
- This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
-
-#include <config.h>
-
-#ifdef WIN32
-
-#include <windows.h>
-#include <winsock.h>
-#undef STRICT
-
-#ifndef MAXHOSTNAMELEN
-#define MAXHOSTNAMELEN 64
-#endif /* MAXHOSTNAMELEN */
-
-#else
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <string.h>
-#include <errno.h>
-
-#include <sys/param.h>
-#include <sys/types.h>
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-#include <arpa/inet.h>
-#endif
-#ifdef HAVE_NETDB_H
-#include <netdb.h>
-#endif
-
-#endif /* WIN32 */
-
-#include <gcj/cni.h>
-#include <jvm.h>
-#include <java/net/InetAddress.h>
-#include <java/net/UnknownHostException.h>
-#include <java/lang/SecurityException.h>
-
-#if defined(HAVE_UNAME) && ! defined(HAVE_GETHOSTNAME)
-#include <sys/utsname.h>
-#endif
-
-#ifndef HAVE_GETHOSTNAME_DECL
-extern "C" int gethostname (char *name, int namelen);
-#endif
-
-#ifdef DISABLE_JAVA_NET
-
-jbyteArray
-java::net::InetAddress::aton (jstring)
-{
- return NULL;
-}
-
-jint
-java::net::InetAddress::getFamily (jbyteArray bytes)
-{
- return 0;
-}
-
-JArray<java::net::InetAddress*> *
-java::net::InetAddress::lookup (jstring, java::net::InetAddress *, jboolean)
-{
- return NULL;
-}
-
-jstring
-java::net::InetAddress::getLocalHostname ()
-{
- return NULL;
-}
-
-#else /* DISABLE_JAVA_NET */
-
-jbyteArray
-java::net::InetAddress::aton (jstring host)
-{
- char *hostname;
- char buf[100];
- int len = JvGetStringUTFLength(host);
- if (len < 100)
- hostname = buf;
- else
- hostname = (char*) _Jv_AllocBytes (len+1);
- JvGetStringUTFRegion (host, 0, host->length(), hostname);
- buf[len] = '\0';
- char* bytes = NULL;
- int blen = 0;
-#ifdef HAVE_INET_ATON
- struct in_addr laddr;
- if (inet_aton (hostname, &laddr))
- {
- bytes = (char*) &laddr;
- blen = 4;
- }
-#elif defined(HAVE_INET_ADDR)
-#if ! HAVE_IN_ADDR_T
- typedef jint in_addr_t;
-#endif
- in_addr_t laddr = inet_addr (hostname);
- if (laddr != (in_addr_t)(-1))
- {
- bytes = (char*) &laddr;
- blen = 4;
- }
-#endif
-#if defined (HAVE_INET_PTON) && defined (HAVE_INET6)
- char inet6_addr[16];
- if (len == 0 && inet_pton (AF_INET6, hostname, inet6_addr) > 0)
- {
- bytes = inet6_addr;
- blen = 16;
- }
-#endif
- if (blen == 0)
- return NULL;
- jbyteArray result = JvNewByteArray (blen);
- memcpy (elements (result), bytes, blen);
- return result;
-}
-
-jint
-java::net::InetAddress::getFamily (jbyteArray bytes)
-{
- int len = bytes->length;
- if (len == 4)
- return AF_INET;
-#ifdef HAVE_INET6
- else if (len == 16)
- return AF_INET6;
-#endif /* HAVE_INET6 */
- else
- JvFail ("unrecognized size");
-}
-
-
-JArray<java::net::InetAddress*> *
-java::net::InetAddress::lookup (jstring host, java::net::InetAddress* iaddr,
- jboolean all)
-{
- struct hostent *hptr = NULL;
-#if defined (HAVE_GETHOSTBYNAME_R) || defined (HAVE_GETHOSTBYADDR_R)
- struct hostent hent_r;
-#if HAVE_STRUCT_HOSTENT_DATA
- struct hostent_data fixed_buffer, *buffer_r = &fixed_buffer;
-#else
-#if defined (__GLIBC__)
- // FIXME: in glibc, gethostbyname_r returns NETDB_INTERNAL to herr and
- // ERANGE to errno if the buffer size is too small, rather than what is
- // expected here. We work around this by setting a bigger buffer size and
- // hoping that it is big enough.
- char fixed_buffer[1024];
-#else
- char fixed_buffer[200];
-#endif
- char *buffer_r = fixed_buffer;
- int size_r = sizeof (fixed_buffer);
-#endif
-#endif
-
- if (host != NULL)
- {
- char *hostname;
- char buf[100];
- int len = JvGetStringUTFLength(host);
- if (len < 100)
- hostname = buf;
- else
- hostname = (char*) _Jv_AllocBytes (len+1);
- JvGetStringUTFRegion (host, 0, host->length(), hostname);
- buf[len] = '\0';
-#ifdef HAVE_GETHOSTBYNAME_R
- while (true)
- {
- int ok;
-#if HAVE_STRUCT_HOSTENT_DATA
- ok = ! gethostbyname_r (hostname, &hent_r, buffer_r);
-#else
- int herr = 0;
-#ifdef GETHOSTBYNAME_R_RETURNS_INT
- ok = ! gethostbyname_r (hostname, &hent_r, buffer_r, size_r,
- &hptr, &herr);
-#else
- hptr = gethostbyname_r (hostname, &hent_r, buffer_r, size_r, &herr);
- ok = hptr != NULL;
-#endif /* GETHOSTNAME_R_RETURNS_INT */
- if (! ok && herr == ERANGE)
- {
- size_r *= 2;
- buffer_r = (char *) _Jv_AllocBytes (size_r);
- }
- else
-#endif /* HAVE_STRUCT_HOSTENT_DATA */
- break;
- }
-#else
- // FIXME: this is insufficient if some other piece of code calls
- // this gethostbyname.
- JvSynchronize sync (java::net::InetAddress::localhostAddress);
- hptr = gethostbyname (hostname);
-#endif /* HAVE_GETHOSTBYNAME_R */
- }
- else
- {
- jbyteArray bytes = iaddr->addr;
- char *chars = (char*) elements (bytes);
- int len = bytes->length;
- int type;
- char *val;
- if (len == 4)
- {
- val = chars;
- type = iaddr->family = AF_INET;
- }
-#ifdef HAVE_INET6
- else if (len == 16)
- {
- val = (char *) &chars;
- type = iaddr->family = AF_INET6;
- }
-#endif /* HAVE_INET6 */
- else
- JvFail ("unrecognized size");
-
-#ifdef HAVE_GETHOSTBYADDR_R
- while (true)
- {
- int ok;
-#if HAVE_STRUCT_HOSTENT_DATA
- ok = ! gethostbyaddr_r (val, len, type, &hent_r, buffer_r);
-#else
- int herr = 0;
-#ifdef GETHOSTBYADDR_R_RETURNS_INT
- ok = ! gethostbyaddr_r (val, len, type, &hent_r,
- buffer_r, size_r, &hptr, &herr);
-#else
- hptr = gethostbyaddr_r (val, len, type, &hent_r,
- buffer_r, size_r, &herr);
- ok = hptr != NULL;
-#endif /* GETHOSTBYADDR_R_RETURNS_INT */
- if (! ok && herr == ERANGE)
- {
- size_r *= 2;
- buffer_r = (char *) _Jv_AllocBytes (size_r);
- }
- else
-#endif /* HAVE_STRUCT_HOSTENT_DATA */
- break;
- }
-#else /* HAVE_GETHOSTBYADDR_R */
- // FIXME: this is insufficient if some other piece of code calls
- // this gethostbyaddr.
- JvSynchronize sync (java::net::InetAddress::localhostAddress);
- hptr = gethostbyaddr (val, len, type);
-#endif /* HAVE_GETHOSTBYADDR_R */
- }
- if (hptr != NULL)
- {
- if (!all)
- host = JvNewStringUTF (hptr->h_name);
- java::lang::SecurityException *ex = checkConnect (host);
- if (ex != NULL)
- {
- if (iaddr == NULL || iaddr->addr == NULL)
- throw ex;
- hptr = NULL;
- }
- }
- if (hptr == NULL)
- {
- if (iaddr != NULL && iaddr->addr != NULL)
- {
- iaddr->hostName = iaddr->getHostAddress();
- return NULL;
- }
- else
- throw new java::net::UnknownHostException(host);
- }
- int count;
- if (all)
- {
- char** ptr = hptr->h_addr_list;
- count = 0;
- while (*ptr++) count++;
- }
- else
- count = 1;
- JArray<java::net::InetAddress*> *result;
- java::net::InetAddress** iaddrs;
- if (all)
- {
- result = java::net::InetAddress::allocArray (count);
- iaddrs = elements (result);
- }
- else
- {
- result = NULL;
- iaddrs = &iaddr;
- }
-
- for (int i = 0; i < count; i++)
- {
- if (iaddrs[i] == NULL)
- iaddrs[i] = new java::net::InetAddress (NULL, NULL);
- if (iaddrs[i]->hostName == NULL)
- iaddrs[i]->hostName = host;
- if (iaddrs[i]->addr == NULL)
- {
- char *bytes = hptr->h_addr_list[i];
- iaddrs[i]->addr = JvNewByteArray (hptr->h_length);
- iaddrs[i]->family = getFamily (iaddrs[i]->addr);
- memcpy (elements (iaddrs[i]->addr), bytes, hptr->h_length);
- }
- }
- return result;
-}
-
-jstring
-java::net::InetAddress::getLocalHostname ()
-{
- char *chars;
-#ifdef HAVE_GETHOSTNAME
- char buffer[MAXHOSTNAMELEN];
- if (gethostname (buffer, MAXHOSTNAMELEN))
- return NULL;
- chars = buffer;
-#elif HAVE_UNAME
- struct utsname stuff;
- if (uname (&stuff) != 0)
- return NULL;
- chars = stuff.nodename;
-#else
- return NULL;
-#endif
- // It is admittedly non-optimal to convert the hostname to Unicode
- // only to convert it back in getByName, but simplicity wins. Note
- // that unless there is a SecurityManager, we only get called once
- // anyway, thanks to the InetAddress.localhost cache.
- return JvNewStringUTF (chars);
-}
-
-#endif /* DISABLE_JAVA_NET */
projects / msp430-gcc.git / blobdiff