Re: basic network detect

[Klaus Berndl]

On Mon, 16 Jan 2006, BRUCE INGALLS wrote:



>  I wrote some code, but tested it on only one system. I wish to add it
>  to the next version of my GPL http://emacro.sf.net/ project.
>  The purpose is to, as feasibly as I can, test if the user has
>   o  broadband
>   o  dialup
>   o  no network
>  
>  Please run the following code on your unix/osx-like system. If it
>  fails, please email me directly the output of ifconfig (you can trim
>  out the actual numbers, such as IP address), or fill in your relevant
>  /dev device name.
>  Let me know, if ifconfig itself fails.
>  
> ;;;cut here
>  
>  (let ((ifconfig (shell-command-to-string "ifconfig")) ;posix:
>  linux/osx/unix
>        (ipconfig (shell-command-to-string "ipconfig"))) ;w32
>  
>        (cond
>         ((string-match "Media disconnected" ipconfig)
>       (message "w32 modem or no network"))
>  
>         ((string-match "IP Address" ipconfig)
>       (message "w32 broadband, or currently (perhaps always?) connected"))
>  
>         ((string-match "eth[0-9]" ifconfig)
>       (message "Linux ethernet"))
>  
>         ((string-match "tty" ifconfig)
>       (message "Linux/Unix modem"))
>  
>         ((string-match "e[0-9]" ifconfig)
>       (message "Solaris ethernet"))
>  
>         ((string-match "rl[0-9]" ifconfig)
>       (message "BSD ethernet"))
>  
>         ((string-match "vr[0-9]" ifconfig)
>       (message "BSD ethernet"))
>  
>         ((string-match "tr[0-9]" ifconfig)
>       (message "Linux/Unix token ring"))
>  
>         ('t message "Default: nothing found = modem or no network")))

Nice idea but some drawbacks:
- in the line there are two mistakes: t must not be quoted and missing open
  paren before `message' (but both really fast to fix i assume ;-)
- This codes works only with English/American operating systems! I'm using
  Windows XP in a German installation and there is no string "IP Address" but
  it's named "IP Adresse"... and I'm sure in french installation there is also
  no string "IP Address" ;-). So i suggest to add some i18n for the searched
  strings - at least for Windows XP (i do not know if there are "not English"
  installations of *nix?!).

  Maybe a customization variable where a user can specify the string to search
  with some proper defaults for the most occurring languages?

Ciao,
Klaus

-- 
Klaus Berndl                    mailto: klaus.berndl@sdm.de
sd&m AG                         http://www.sdm.de
software design & management    
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