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mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-10 18:51:21 +03:00
Pasukhin Dmitry 2912b4dadb
Foundation Classes - Host resolving by itself #457
Fixed issue  when gethostbyname returns a nullptr, because the host can't resolve itself
2025-03-23 15:52:48 +00:00

394 lines
9.0 KiB
C++

// Copyright (c) 1998-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _WIN32
#include <OSD_Host.hxx>
#include <OSD_OSDError.hxx>
#include <OSD_WhoAmI.hxx>
#include <Standard_ConstructionError.hxx>
#include <Standard_NullObject.hxx>
#include <TCollection_AsciiString.hxx>
const OSD_WhoAmI Iam = OSD_WHost;
#include <errno.h>
#include <sys/utsname.h> // For 'uname'
#include <netdb.h> // This is for 'gethostbyname'
#include <unistd.h>
#include <stdio.h>
#if defined(__osf__) || defined(DECOSF1)
#include <sys/types.h>
#include <sys/sysinfo.h> // For 'getsysinfo'
#include <sys/socket.h> // To get ethernet address
#include <sys/ioctl.h>
#include <net/if.h>
extern "C"
{
int gethostname(char* address, int len);
}
#endif
extern "C"
{
int sysinfo(int, char*, long);
}
// =========================================================================
OSD_Host::OSD_Host() {}
// =========================================================================
TCollection_AsciiString OSD_Host::SystemVersion()
{
struct utsname info;
TCollection_AsciiString result;
uname(&info);
result = info.sysname;
result += " ";
result += info.release;
return (result);
}
// =========================================================================
OSD_SysType OSD_Host::SystemId() const
{
struct utsname info;
uname(&info);
if (!strcmp(info.sysname, "SunOS"))
return (OSD_UnixBSD);
if (!strcmp(info.sysname, "ULTRIX"))
return (OSD_UnixBSD);
if (!strcmp(info.sysname, "FreeBSD"))
return (OSD_UnixBSD);
if (!strncmp(info.sysname, "Linux", 5))
return (OSD_LinuxREDHAT);
if (!strncmp(info.sysname, "IRIX", 4))
return (OSD_UnixSystemV);
if (!strncmp(info.sysname, "OSF", 3))
return (OSD_OSF);
if (!strcmp(info.sysname, "AIX"))
return (OSD_Aix);
if (!strcmp(info.sysname, "UNIX_System_V"))
return (OSD_UnixSystemV);
if (!strcmp(info.sysname, "VMS_POSIX"))
return (OSD_VMS);
if (!strcmp(info.sysname, "Darwin"))
return (OSD_MacOs);
return (OSD_Unknown);
}
// =========================================================================
TCollection_AsciiString OSD_Host::HostName()
{
TCollection_AsciiString result;
char value[65];
int status;
status = gethostname(value, 64);
if (status == -1)
myError.SetValue(errno, Iam, "Host Name");
result = value;
return (result);
}
// =========================================================================
Standard_Integer OSD_Host::AvailableMemory()
{
Standard_Integer result;
#if defined(__osf__) || defined(DECOSF1)
char buffer[16];
//// result = getsysinfo(GSI_PHYSMEM,buffer, 16,0,NULL);
if (result != -1)
result *= 1024;
#else
result = 0;
//@@ A faire
#endif
return (result);
}
// =========================================================================
TCollection_AsciiString OSD_Host::InternetAddress()
{
struct hostent internet_address;
int a, b, c, d;
char buffer[16];
TCollection_AsciiString result, host;
host = HostName();
const auto* aHostByName = gethostbyname(host.ToCString());
if (aHostByName == nullptr)
{
aHostByName = gethostbyname("localhost");
}
memcpy(&internet_address, aHostByName, sizeof(struct hostent));
// Gets each bytes into integers
a = (unsigned char)internet_address.h_addr_list[0][0];
b = (unsigned char)internet_address.h_addr_list[0][1];
c = (unsigned char)internet_address.h_addr_list[0][2];
d = (unsigned char)internet_address.h_addr_list[0][3];
sprintf(buffer, "%d.%d.%d.%d", a, b, c, d);
result = buffer;
return (result);
}
// =========================================================================
OSD_OEMType OSD_Host::MachineType()
{
struct utsname info;
uname(&info);
if (!strcmp(info.sysname, "SunOS"))
return (OSD_SUN);
if (!strcmp(info.sysname, "ULTRIX"))
return (OSD_DEC);
if (!strncmp(info.sysname, "IRIX", 4))
return (OSD_SGI);
if (!strcmp(info.sysname, "HP-UX"))
return (OSD_HP);
if (!strcmp(info.sysname, "UNIX_System_V"))
return (OSD_NEC);
if (!strcmp(info.sysname, "VMS_POSIX"))
return (OSD_VAX);
if (!strncmp(info.sysname, "OSF", 3))
return (OSD_DEC);
if (!strncmp(info.sysname, "Linux", 5))
return (OSD_LIN);
if (!strcmp(info.sysname, "FreeBSD"))
return (OSD_LIN);
if (!strncmp(info.sysname, "AIX", 3))
return (OSD_AIX);
if (!strcmp(info.sysname, "Darwin"))
return (OSD_MAC);
return (OSD_Unavailable);
}
void OSD_Host::Reset()
{
myError.Reset();
}
Standard_Boolean OSD_Host::Failed() const
{
return (myError.Failed());
}
void OSD_Host::Perror()
{
myError.Perror();
}
Standard_Integer OSD_Host::Error() const
{
return (myError.Error());
}
#else
//------------------------------------------------------------------------
//------------------- WNT Sources of OSD_Host ---------------------------
//------------------------------------------------------------------------
#include <windows.h>
#include <OSD_Host.hxx>
#if defined(_MSC_VER)
#pragma comment(lib, "WSOCK32.LIB")
#endif
void _osd_wnt_set_error(OSD_Error&, Standard_Integer, ...);
static BOOL fInit = FALSE;
static TCollection_AsciiString hostName;
static TCollection_AsciiString version;
static TCollection_AsciiString interAddr;
static Standard_Integer memSize;
OSD_Host ::OSD_Host()
{
#ifndef OCCT_UWP
DWORD nSize;
char szHostName[MAX_COMPUTERNAME_LENGTH + 1];
char* hostAddr = 0;
MEMORYSTATUS ms;
WSADATA wd;
PHOSTENT phe;
IN_ADDR inAddr;
OSVERSIONINFOW osVerInfo;
if (!fInit)
{
nSize = MAX_COMPUTERNAME_LENGTH + 1;
ZeroMemory(&osVerInfo, sizeof(OSVERSIONINFOW));
osVerInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
ZeroMemory(&ms, sizeof(ms));
ZeroMemory(szHostName, sizeof(char) * (MAX_COMPUTERNAME_LENGTH + 1));
// suppress GetVersionEx() deprecation warning
Standard_DISABLE_DEPRECATION_WARNINGS if (!GetVersionExW(&osVerInfo))
{
_osd_wnt_set_error(myError, OSD_WHost);
}
else if (!GetComputerNameA(szHostName, &nSize))
{
_osd_wnt_set_error(myError, OSD_WHost);
}
else
{
ms.dwLength = sizeof(MEMORYSTATUS);
GlobalMemoryStatus(&ms);
} // end else
Standard_ENABLE_DEPRECATION_WARNINGS
if (!Failed())
{
memSize = (Standard_Integer)ms.dwAvailPageFile;
if (WSAStartup(MAKEWORD(1, 1), &wd))
{
_osd_wnt_set_error(myError, OSD_WHost);
}
else if ((phe = gethostbyname(szHostName)) == NULL)
{
_osd_wnt_set_error(myError, OSD_WHost);
}
else
{
CopyMemory(&inAddr, *phe->h_addr_list, sizeof(IN_ADDR));
hostAddr = inet_ntoa(inAddr);
} // end else
} // end if
if (!Failed())
{
hostName = szHostName;
interAddr = Standard_CString(hostAddr);
TCollection_AsciiString aVersion = TCollection_AsciiString("Windows NT Version ")
+ (int)osVerInfo.dwMajorVersion + "."
+ (int)osVerInfo.dwMinorVersion;
if (*osVerInfo.szCSDVersion != L'\0')
{
aVersion += TCollection_AsciiString(" ") + TCollection_AsciiString(osVerInfo.szCSDVersion);
}
version = aVersion;
fInit = TRUE;
} // end if
} // end if
if (fInit)
myName = hostName;
#endif
} // end constructor
TCollection_AsciiString OSD_Host ::SystemVersion()
{
return version;
} // end OSD_Host :: SystemVersion
OSD_SysType OSD_Host ::SystemId() const
{
return OSD_WindowsNT;
} // end OSD_Host :: SystemId
TCollection_AsciiString OSD_Host ::HostName()
{
return hostName;
} // end OSD_Host :: HostName
Standard_Integer OSD_Host ::AvailableMemory()
{
return memSize;
} // end OSD_Host :: AvailableMemory
TCollection_AsciiString OSD_Host ::InternetAddress()
{
return interAddr;
} // end OSD_Host :: InternetAddress
OSD_OEMType OSD_Host ::MachineType()
{
return OSD_PC;
} // end OSD_Host :: MachineTYpe
Standard_Boolean OSD_Host ::Failed() const
{
return myError.Failed();
} // end OSD_Host :: Failed
void OSD_Host ::Reset()
{
myError.Reset();
} // end OSD_Host :: Reset
void OSD_Host ::Perror()
{
myError.Perror();
} // end OSD_Host :: Perror
Standard_Integer OSD_Host ::Error() const
{
return myError.Error();
} // end OSD_Host :: Error
#endif