Network queston for users with mixed OS on their network...

In windows networking (WNet), the first level of enumeration gets you a list of network providers...

On my Win7 and XP boxes this is what I get....

Code:

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Microsoft Terminal Services
 Microsoft Windows Network
 Web Client Network

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Here's the Windows code...

Code:

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// enumerate lan resources
#include <windows.h>
#include <stdio.h>

int _cdecl  main (void)
  { HANDLE hn;
    PVOID  buf = malloc(1024);
    DWORD idx = 1;
    NETRESOURCE net = {0};
    DWORD  sbuf = 1024;
    WIN32_FIND_DATA fd = {0};
    HANDLE fh;
    CHAR  vn[MAX_PATH];

    net.lpRemoteName = "";

    if (WNetOpenEnum(RESOURCE_GLOBALNET,RESOURCETYPE_ANY,RESOURCEUSAGE_ALL,&net,&hn))
      { puts("Enum not open");
        return 0; }

    while(! WNetEnumResource(hn,&idx,buf,&sbuf))
          printf("%s\n", ((LPNETRESOURCE) buf)->lpRemoteName);
     
    WNetCloseEnum(hn);
    free(buf);
    puts("");
    return 0; }

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I would be very interested to see what comes back with Windows + Linux, Windows + Mac etc. on the same network...

I get the same. I'm sharing a printer off my Mac, and I've got a shared folder so the mac has a \\servername, but I'm not seeing anything extra.

Quote:

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Originally Posted by tabstop

I get the same. I'm sharing a printer off my Mac, and I've got a shared folder so the mac has a \\servername, but I'm not seeing anything extra.

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Ok... what I was trying to find out is if I'd end up with "Apple Networking" or something as a provider name...
Of course the second level (workgroups) also raises the same query...

Code:

---

// enumerate lan resources
#include <windows.h>
#include <stdio.h>

int _cdecl  main (void)
  { HANDLE hn;
    PVOID  buf = malloc(1024);
    DWORD idx = 1;
    NETRESOURCE net = {0};
    DWORD  sbuf = 1024;
    WIN32_FIND_DATA fd = {0};
    HANDLE fh;
    CHAR  vn[MAX_PATH];

    net.lpRemoteName = "";
    net.lpProvider = "Microsoft Windows Network";

    if (WNetOpenEnum(RESOURCE_GLOBALNET,RESOURCETYPE_ANY,RESOURCEUSAGE_ALL,&net,&hn))
      { puts("Enum not open");
        return 0; }

    while(! WNetEnumResource(hn,&idx,buf,&sbuf))
          printf("%s\n", ((LPNETRESOURCE) buf)->lpRemoteName);
     
    WNetCloseEnum(hn);
    free(buf);
    puts("");
    return 0; }

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Code:

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error: 'NETRESOURCE' has no member named 'lpProviderName'

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Fixing that, all I get was WORKGROUP.

Quote:

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Originally Posted by tabstop

Code:

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error: 'NETRESOURCE' has no member named 'lpProviderName'

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Fixing that, all I get was WORKGROUP.

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My bad... it's lpProvider ... that'll teach me to rush and not check things...

Ok so you got workgroup... which is probably the name of your workgroup... on my setup I get ELECTRIC (for the home theatre systems) and PORTABLE (for our wifi devices) ...

Ok, so far so good... it looks like the Mac is basically indistiguishable from another windows computer, which is just what I was hoping...

Anyone for Linux? .....

It's the same. They all use either Samba or something which closely mimics it to make use of SMB/CIFS which is MS's protocol for sharing stuff. Probably for compability Samba identifies the computer as a Windows one, not that identifying it as anything else would cause extra entries. The second two names in the list are misnomers, "Microsoft Windows Network" would be better termed as SMB Network, and "Web Client Network" as WebDAV connections.

You'll probably add more entries to the list if the comp is on an Active Directory or Netware network. Though that's not a guarantee.

Did you run the code to confirm this ... or are you just saying?

I know the underpinnings... I'm looking for confirmation from actual testing.
Unfortunately the Linux box I could test with is currently in Africa with my oldest daughter.

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gg

Thanks tabstop... your answers were very helpful.

I did manage to get a test with a linux laptop a friend brought over. So it's all good.