[BusyBox 0001343]: arp ethers support

[bugs at busybox.net]

A NOTE has been added to this issue. 
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http://busybox.net/bugs/view.php?id=1343 
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Reported By:                ralf
Assigned To:                BusyBox
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Project:                    BusyBox
Issue ID:                   1343
Category:                   Networking Support
Reproducibility:            always
Severity:                   feature
Priority:                   normal
Status:                     assigned
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Date Submitted:             05-11-2007 07:22 PDT
Last Modified:              05-20-2007 06:29 PDT
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Summary:                    arp ethers support
Description: 
With this patch arp can read addresses from a static file
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 vda - 05-20-07 06:29  
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Indeed, "standard" arp has this option. However, I can't apply this patch
as-is:

1. -f option is not made conditional (it should be, because this
functionality is not essential for every user).

2. If I understand it right, /etc/ethers looks like:
00:00:4b:3e:45:e2 192.168.1.1
00:00:56:3e:36:1f 192.168.1.2
Your parsing code seems to be too complex for such a simple file format.
If you handle more complex format, please document example(s) in source
code comments.

3. arp_file() body is whitespace damaged; and please avoid assignments in
ifs like 'if ((fp = fopen(name, "r"))' 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
05-11-07 07:22  ralf           New Issue                                    
05-11-07 07:22  ralf           Status                   new => assigned     
05-11-07 07:22  ralf           Assigned To               => BusyBox         
05-11-07 07:22  ralf           File Added: ethers.diff                      
05-11-07 07:26  ralf           Issue Monitored: ralf                        
05-20-07 06:29  vda            Note Added: 0002384                          
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