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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3804 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Karsten Ballüder 1999-10-03 15:57:28 +00:00
parent 24df4c19d9
commit c756f74260
1 changed files with 61 additions and 20 deletions
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81
src/unix/dialup.cpp
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@ -325,52 +325,93 @@ wxDialUpManagerImpl::CheckStatusInternal(void)
m_IfconfigPath = "/usr/sbin/ifconfig";
}
wxLogNull ln; // suppress all error messages
// Let´s try the ifconfig method first, should be fastest:
if(m_CanUseIfconfig != 0) // unknown or yes
{
wxASSERT(m_IfconfigPath.length());
wxString tmpfile = wxGetTempFileName("_wxdialuptest");
wxString cmd = m_IfconfigPath;
cmd << " >" << tmpfile;
if(wxExecute(m_IfconfigPath,TRUE /* sync */) == 0)
wxString cmd = "/bin/sh -c \'";
cmd << m_IfconfigPath << " >" << 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
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;
wxString cmd1 = "grep ppp <"+tmpfile; // PPP
wxString cmd2 = "grep sl <"+tmpfile; // SLIP
wxString cmd3 = "grep pl <"+tmpfile; // PLIP
if(wxExecute(cmd1,TRUE) == 0
|| wxExecute(cmd2,TRUE) == 0
|| wxExecute(cmd3,TRUE) == 0
)
m_IsOnline = 1;
wxFile file;
if( file.Open(tmpfile) )
{
char *output = new char [file.Length()+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;
}
file.Close();
delete [] output;
}
// else m_IsOnline remains -1 as we don't know for sure
}
else // could not run ifconfig correctly
m_CanUseIfconfig = 0; // don´t try again
wxRemoveFile(tmpfile);
(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;
int sockfd;
m_IsOnline = 0; // assume false
if((hp = gethostbyname(m_BeaconHost)) == NULL)
return; // no DNS no net
serv_addr.sin_family = hp->h_addrtype;
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)
{
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;
}