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added Linux-only /proc/net/route check, IsOnline proceeds check always, not only if timer is not running, changed order of tests (/proc/net, ifconfig, connect to well-known host, ping)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5798 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík 2000-02-02 15:10:15 +00:00
parent 990416e0bd
commit 06bd2b5753
1 changed files with 41 additions and 7 deletions
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44
src/unix/dialup.cpp
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@ -104,11 +104,8 @@ public:
// 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 < 0
)
CheckStatus();
return m_IsOnline != 0;
return m_IsOnline > 0;
}
/// do we have a constant net connection? -- GUESS!
@ -203,6 +200,8 @@ private:
/// 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
@ -447,9 +446,11 @@ wxDialUpManagerImpl::CheckStatusInternal(void)
int testResult;
testResult = CheckConnect();
testResult = CheckProcNet();
if(testResult == -1)
testResult = CheckIfconfig();
if(testResult == -1)
testResult = CheckConnect();
if(testResult == -1)
testResult = CheckPing();
m_IsOnline = testResult;
@ -490,6 +491,39 @@ wxDialUpManagerImpl::CheckConnect(void)
return -1;
}
int
wxDialUpManagerImpl::CheckProcNet(void)
{
int rc = -1;
#ifdef __LINUX__
if (wxFileExists(_T("/proc/net/route")))
{
// 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)
{