#include "wx/setup.h"
+#ifdef __GNUG__
+# pragma implementation "dialup.h"
+#endif
+
#if wxUSE_DIALUP_MANAGER
#ifndef WX_PRECOMP
#include "wx/process.h"
#include "wx/intl.h"
#include "wx/app.h"
+#include "wx/wxchar.h"
#include <stdlib.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
+#include <errno.h>
// ----------------------------------------------------------------------------
// A class which groups functions dealing with connecting to the network from a
public:
wxDialUpManagerImpl();
~wxDialUpManagerImpl();
-
+
/** Could the dialup manager be initialized correctly? If this function
returns FALSE, no other functions will work neither, so it's a good idea
to call this function and check its result before calling any other
// the "well-known host" (as specified by SetWellKnownHost) is reachable
virtual bool IsOnline() const
{
- if( (! m_timer) // we are not polling, so test now:
- || m_IsOnline == -1
- )
- CheckStatus();
- return m_IsOnline != 0;
+ CheckStatus();
+ return m_IsOnline > 0;
}
+ /// do we have a constant net connection? -- GUESS!
+ bool IsAlwaysOnline() const
+ {
+ ((wxDialUpManagerImpl *) this)->HangUp(); // brutal but necessary
+ return IsOnline();
+ }
/// returns TRUE if (async) dialing is in progress
- inline virtual bool IsDialling() const
+ inline virtual bool IsDialing() const
{ return m_DialProcess != NULL; }
// cancel dialing the number initiated with Dial(async = TRUE)
// NB: this won't result in DISCONNECTED event being sent
virtual bool CancelDialing();
+ size_t GetISPNames(class wxArrayString &) const
+ { return 0; }
+
// sometimes the built-in logic for determining the online status may fail,
// so, in general, the user should be allowed to override it. This function
// allows to forcefully set the online status - whatever our internal
/// The path to ifconfig
wxString m_IfconfigPath;
+ /// Can we use ping to find hosts?
+ int m_CanUsePing;
+ /// The path to ping program
+ wxString m_PingPath;
+
/// beacon host:
wxString m_BeaconHost;
/// beacon host portnumber for connect:
/// pid of dial process
int m_DialPId;
friend class wxDialProcess;
-
+
/// determine status
void CheckStatus(bool fromAsync = FALSE) const;
/// real status check
void CheckStatusInternal(void);
+
+ /// Check /proc/net (Linux only)
+ int CheckProcNet(void);
+ /// Check output of ifconfig command for PPP/SLIP/PLIP devices
+ int CheckIfconfig(void);
+ /// Ping a host: 1 on success, -1 if it cannot be used, 0 if unreachable
+ int CheckPing(void);
+ /// Check by connecting to host on given port.
+ int CheckConnect(void);
+
};
m_started = FALSE;
}
- virtual bool Start( int millisecs = -1 )
+ virtual bool Start( int millisecs = -1, bool WXUNUSED(one_shot) = FALSE )
{ m_started = TRUE; return wxTimer::Start(millisecs, FALSE); }
virtual void Notify()
- { wxLogTrace("Checking dial up network status."); m_dupman->CheckStatus(); }
+ { wxLogTrace(wxT("Checking dial up network status.")); m_dupman->CheckStatus(); }
virtual void Stop()
{ if ( m_started ) wxTimer::Stop(); }
{
m_DupMan = dupman;
}
- void OnTerminate(int pid, int status) const
+ void Disconnect(void) { m_DupMan = NULL; }
+ virtual void OnTerminate(int WXUNUSED(pid), int WXUNUSED(status))
{
- m_DupMan->m_DialProcess = NULL;
- m_DupMan->CheckStatus(TRUE);
+ if(m_DupMan)
+ {
+ m_DupMan->m_DialProcess = NULL;
+ m_DupMan->CheckStatus(TRUE);
+ }
}
private:
wxDialUpManagerImpl *m_DupMan;
wxDialUpManagerImpl::wxDialUpManagerImpl()
{
- m_IsOnline = -1; // unknown
+ /* The isOnline flag can have the following values internally:
+ 0 : not connected
+ 1 : connected
+ -1 : unknown/undefined status
+ */
+ m_IsOnline = -1;
m_DialProcess = NULL;
m_timer = NULL;
m_CanUseIfconfig = -1; // unknown
+ m_CanUsePing = -1; // unknown
m_BeaconHost = WXDIALUP_MANAGER_DEFAULT_BEACONHOST;
m_BeaconPort = 80;
+
+#ifdef __SGI__
+ m_ConnectCommand = _T("/usr/etc/ppp");
+#elif defined(__LINUX__)
+ // default values for Debian/GNU linux
+ m_ConnectCommand = _T("pon");
+ m_HangUpCommand = _T("poff");
+#endif
+
+ wxChar * dial = wxGetenv(_T("WXDIALUP_DIALCMD"));
+ wxChar * hup = wxGetenv(_T("WXDIALUP_HUPCMD"));
+ SetConnectCommand(dial ? wxString(dial) : m_ConnectCommand,
+ hup ? wxString(hup) : m_HangUpCommand);
}
wxDialUpManagerImpl::~wxDialUpManagerImpl()
{
if(m_timer) delete m_timer;
- if(m_DialProcess) m_DialProcess->Detach();
+ if(m_DialProcess)
+ {
+ m_DialProcess->Disconnect();
+ m_DialProcess->Detach();
+ }
}
bool
{
if(m_IsOnline == 1)
return FALSE;
- m_IsOnline = -1;
m_ISPname = isp;
wxString cmd;
- if(m_ConnectCommand.Find("%s"))
+ if(m_ConnectCommand.Find(wxT("%s")))
cmd.Printf(m_ConnectCommand,m_ISPname.c_str());
else
cmd = m_ConnectCommand;
if ( async )
{
m_DialProcess = new wxDialProcess(this);
- m_DialPId = wxExecute(cmd, FALSE, m_DialProcess);
+ m_DialPId = (int)wxExecute(cmd, FALSE, m_DialProcess);
if(m_DialPId == 0)
{
delete m_DialProcess;
{
if(m_IsOnline == 0)
return FALSE;
- if(IsDialling())
+ if(IsDialing())
{
wxLogError(_("Already dialling ISP."));
return FALSE;
}
- m_IsOnline = -1;
wxString cmd;
- if(m_HangUpCommand.Find("%s"))
+ if(m_HangUpCommand.Find(wxT("%s")))
cmd.Printf(m_HangUpCommand,m_ISPname.c_str(), m_DialProcess);
else
cmd = m_HangUpCommand;
bool
wxDialUpManagerImpl::CancelDialing()
{
- if(! IsDialling())
+ if(! IsDialing())
return FALSE;
return kill(m_DialPId, SIGTERM) > 0;
}
bool
wxDialUpManagerImpl::EnableAutoCheckOnlineStatus(size_t nSeconds)
{
- wxASSERT(m_timer == NULL);
+ DisableAutoCheckOnlineStatus();
m_timer = new AutoCheckTimer(this);
bool rc = m_timer->Start(nSeconds*1000);
if(! rc)
void
wxDialUpManagerImpl::DisableAutoCheckOnlineStatus()
{
- wxASSERT(m_timer != NULL);
- m_timer->Stop();
- delete m_timer;
- m_timer = NULL;
+ if(m_timer != NULL)
+ {
+ m_timer->Stop();
+ delete m_timer;
+ m_timer = NULL;
+ }
}
void
wxDialUpManagerImpl::SetWellKnownHost(const wxString& hostname, int portno)
{
+ if(hostname.Length() == 0)
+ {
+ m_BeaconHost = WXDIALUP_MANAGER_DEFAULT_BEACONHOST;
+ m_BeaconPort = 80;
+ return;
+ }
+
/// does hostname contain a port number?
- wxString port = hostname.After(':');
+ wxString port = hostname.After(wxT(':'));
if(port.Length())
{
- m_BeaconHost = hostname.Before(':');
- m_BeaconPort = atoi(port);
+ m_BeaconHost = hostname.Before(wxT(':'));
+ m_BeaconPort = wxAtoi(port);
}
else
{
( /* non-const */ (wxDialUpManagerImpl *)this)->CheckStatusInternal();
// now send the events as appropriate:
- if(m_IsOnline != oldIsOnline)
+ if(m_IsOnline != oldIsOnline // it changed
+ && ( m_IsOnline == 1 // and it is a defined status
+ || m_IsOnline == 0)
+ // only send events for well defined transitions
+ && ( oldIsOnline == 1 || oldIsOnline == 0)
+ )
{
wxDialUpEvent event(m_IsOnline, ! fromAsync);
(void)wxTheApp->ProcessEvent(event);
{
m_IsOnline = -1;
- // First time check for ifconfig location. We only use the variant
- // which does not take arguments, a la GNU.
- if(m_CanUseIfconfig == -1) // unknown
+ int testResult;
+
+ testResult = CheckProcNet();
+ if(testResult == -1)
+ testResult = CheckIfconfig();
+ if(testResult == -1)
+ testResult = CheckConnect();
+ if(testResult == -1)
+ testResult = CheckPing();
+ m_IsOnline = testResult;
+}
+
+int
+wxDialUpManagerImpl::CheckConnect(void)
+{
+ // second method: try to connect to a well known host:
+ // This can be used under Win 9x, too!
+ struct hostent *hp;
+ struct sockaddr_in serv_addr;
+
+ if((hp = gethostbyname(m_BeaconHost.mb_str())) == NULL)
+ return 0; // no DNS no net
+
+ serv_addr.sin_family = hp->h_addrtype;
+ memcpy(&serv_addr.sin_addr,hp->h_addr, hp->h_length);
+ serv_addr.sin_port = htons(m_BeaconPort);
+
+ int sockfd;
+ if( ( sockfd = socket(hp->h_addrtype, SOCK_STREAM, 0)) < 0)
+ {
+ return -1; // no info
+ }
+
+ if( connect(sockfd, (struct sockaddr *) &serv_addr,
+ sizeof(serv_addr)) >= 0)
+ {
+ close(sockfd);
+ return 1; // we cant connect, so we have a network!
+ }
+ //connected!
+ close(sockfd);
+ if(errno == ENETUNREACH)
+ return 0; // network is unreachable
+ // connect failed, but don't know why
+ return -1;
+}
+
+
+int
+wxDialUpManagerImpl::CheckProcNet(void)
+{
+ int rc = -1;
+
+#ifdef __LINUX__
+ if (wxFileExists(_T("/proc/net/route")))
{
- if(wxFileExists("/sbin/ifconfig"))
- m_IfconfigPath = "/sbin/ifconfig";
- else if(wxFileExists("/usr/sbin/ifconfig"))
- m_IfconfigPath = "/usr/sbin/ifconfig";
+ // NOTE: cannot use wxFile::Length because file doesn't support
+ // seeking
+ FILE *f = fopen("/proc/net/route", "rt");
+ if (f != NULL)
+ {
+ char output[256];
+
+ while (fgets(output, 256, f) != NULL)
+ {
+ if (strstr(output,"ppp") // ppp
+ || strstr(output,"sl") // slip
+ || strstr(output,"pl")) // plip
+ rc = 1;
+ }
+ if (rc == -1) rc = 0;
+ fclose(f);
+ }
+ }
+#endif
+
+ return rc;
+}
+
+
+int
+wxDialUpManagerImpl::CheckIfconfig(void)
+{
+ int rc = -1;
+
+ // First time check for ifconfig location. We only use the variant which
+ // does not take arguments, a la GNU.
+ if ( m_CanUseIfconfig == -1 ) // unknown
+ {
+ static const wxChar *ifconfigLocations[] =
+ {
+ _T("/sbin"), // Linux, FreeBSD
+ _T("/usr/sbin"), // SunOS, Solaris, AIX, HP-UX
+ _T("/usr/etc"), // IRIX
+ };
+
+ for ( size_t n = 0; n < WXSIZEOF(ifconfigLocations); n++ )
+ {
+ wxString path(ifconfigLocations[n]);
+ path << _T("/ifconfig");
+
+ if ( wxFileExists(path) )
+ {
+ m_IfconfigPath = path;
+ break;
+ }
+ }
}
wxLogNull ln; // suppress all error messages
if(m_CanUseIfconfig != 0) // unknown or yes
{
wxASSERT(m_IfconfigPath.length());
-
+
wxString tmpfile = wxGetTempFileName("_wxdialuptest");
wxString cmd = "/bin/sh -c \'";
- cmd << m_IfconfigPath << " >" << tmpfile << '\'';
+ cmd << m_IfconfigPath;
+#if defined(__SOLARIS__) || defined (__SUNOS__)
+ // need to add -a flag
+ cmd << " -a";
+#elif defined(__LINUX__) || defined(__SGI__)
+ // nothing to be added to ifconfig
+#elif defined(__FREEBSD__)
+ // add -l flag
+ cmd << " -l";
+#elif defined(__HPUX__)
+ // VZ: a wild guess (but without it, ifconfig fails completely)
+ cmd << _T(" ppp0");
+#else
+# pragma warning "No ifconfig information for this OS."
+ m_CanUseIfconfig = 0;
+ return -1;
+#endif
+ cmd << " >" << tmpfile << '\'';
/* I tried to add an option to wxExecute() to not close stdout,
so we could let ifconfig write directly to the tmpfile, but
- this does not work. That should be faster, as it doesn´t call
+ this does not work. That should be faster, as it doesn´t call
the shell first. I have no idea why. :-( (KB) */
-#if 0
- // temporarily redirect stdout/stderr:
- int
- new_stdout = dup(STDOUT_FILENO),
- new_stderr = dup(STDERR_FILENO);
- close(STDOUT_FILENO);
- close(STDERR_FILENO);
-
- int
- // new stdout:
- output_fd = open(tmpfile, O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR),
- // new stderr:
- null_fd = open("/dev/null", O_CREAT, S_IRUSR|S_IWUSR);
- // verify well behaved unix behaviour:
- wxASSERT(output_fd == STDOUT_FILENO);
- wxASSERT(null_fd == STDERR_FILENO);
- int rc = wxExecute(m_IfconfigPath,TRUE /* sync */,NULL ,wxEXECUTE_DONT_CLOSE_FDS);
- close(null_fd); close(output_fd);
- // restore old stdout, stderr:
- int test;
- test = dup(new_stdout); close(new_stdout); wxASSERT(test == STDOUT_FILENO);
- test = dup(new_stderr); close(new_stderr); wxASSERT(test == STDERR_FILENO);
- if(rc == 0)
-#endif
if(wxExecute(cmd,TRUE /* sync */) == 0)
{
m_CanUseIfconfig = 1;
output[file.Length()] = '\0';
if(file.Read(output,file.Length()) == file.Length())
{
- if(strstr(output,"ppp") // ppp
- || strstr(output,"sl") // slip
- || strstr(output,"pl") // plip
- )
- m_IsOnline = 1;
- else
- m_IsOnline = 0;
+ // FIXME shouldn't we grep for "^ppp"? (VZ)
+
+#if defined(__SOLARIS__) || defined (__SUNOS__)
+ // dialup device under SunOS/Solaris
+ rc = strstr(output,"ipdptp") != (char *)NULL;
+#elif defined(__LINUX__) || defined (__FREEBSD__)
+ rc = strstr(output,"ppp") // ppp
+ || strstr(output,"sl") // slip
+ || strstr(output,"pl"); // plip
+#elif defined(__SGI__) // IRIX
+ rc = (int) strstr(output, "ppp"); // PPP
+#elif defined(__HPUX__)
+ // if could run ifconfig on interface, then it exists
+ rc = TRUE;
+#endif
}
file.Close();
delete [] output;
}
- // else m_IsOnline remains -1 as we don't know for sure
+ // else rc remains -1 as we don't know for sure
}
else // could not run ifconfig correctly
m_CanUseIfconfig = 0; // don´t try again
(void) wxRemoveFile(tmpfile);
- if(m_IsOnline != -1) // we are done
- return;
}
- // second method: try to connect to well known host:
- // This can be used under Win 9x, too!
- struct hostent *hp;
- struct sockaddr_in serv_addr;
- int sockfd;
+ return rc;
+}
- m_IsOnline = 0; // assume false
- if((hp = gethostbyname(m_BeaconHost)) == NULL)
- return; // no DNS no net
-
- serv_addr.sin_family = hp->h_addrtype;
- memcpy(&serv_addr.sin_addr,hp->h_addr, hp->h_length);
- serv_addr.sin_port = htons(m_BeaconPort);
- if( ( sockfd = socket(hp->h_addrtype, SOCK_STREAM, 0)) < 0)
- {
- // sys_error("cannot create socket for gw");
- return;
- }
- if( connect(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0)
- {
- //sys_error("cannot connect to server");
- return;
+int
+wxDialUpManagerImpl::CheckPing(void)
+{
+ if(! m_CanUsePing)
+ return -1;
+
+ // First time check for ping location. We only use the variant
+ // which does not take arguments, a la GNU.
+ if(m_CanUsePing == -1) // unknown
+ {
+ if(wxFileExists("/bin/ping"))
+ m_PingPath = "/bin/ping";
+ else if(wxFileExists("/usr/sbin/ping"))
+ m_PingPath = "/usr/sbin/ping";
+ if(! m_PingPath)
+ {
+ m_CanUsePing = 0;
+ return -1;
+ }
}
- //connected!
- close(sockfd);
-}
+ wxLogNull ln; // suppress all error messages
+ wxASSERT(m_PingPath.length());
+ wxString cmd;
+ cmd << m_PingPath << ' ';
+#if defined(__SOLARIS__) || defined (__SUNOS__)
+ // nothing to add to ping command
+#elif defined(__LINUX__) || defined ( __FREEBSD__)
+ cmd << "-c 1 "; // only ping once
+#elif defined(__HPUX__)
+ cmd << "64 1 "; // only ping once (need also specify the packet size)
+#else
+# pragma warning "No Ping information for this OS."
+ m_CanUsePing = 0;
+ return -1;
+#endif
+ cmd << m_BeaconHost;
+ if(wxExecute(cmd, TRUE /* sync */) == 0)
+ return 1;
+ else
+ return 0;
+}
/* static */
wxDialUpManager *
-wxDialUpManager::wxDialUpManager::Create(void)
+wxDialUpManager::Create(void)
{
return new wxDialUpManagerImpl;
}
projects / wxWidgets.git / blobdiff