Convert ip ranges to CIDR netblock


 
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# 36  
Old 12-28-2018
Well done research/troubleshooting.
Thanks for sharing!
This User Gave Thanks to vgersh99 For This Post:
# 37  
Old 01-06-2019
Quote:
Originally Posted by azdps
EDIT: Reason for segmentation fault solved

Okay I found this information reference OpenBSD awk vs gawk. It states "Gawk uses 53-bit unsigned integers, but OpenBSD awk uses 32-bit signed integers." This applies to the bitwise operations.

If I convert 128.0.0.0 to decimal the result is 2,147,483,648 which exceeds the maximum 32-bit signed integer value for variables 2,147,483,647 declared as integers. So it's clear now why the script that uses the native lshift, rshift, or bitwise operations is causing an awk segmentation fault with IP's greater than 128.0.0.0 and the script that uses the custom bit_lshift, bit_rshift, bit_or bitwise operations doesn't.

End of a long story =(
The only time segmentation fault isn't programmer error is when your RAM is faulty or someone pulled a disk they really shouldn't have. This isn't expected behavior, this is still a bug.
# 38  
Old 01-07-2019
Noted, thank you for the information. Please close this thread as additional posts have had nothing of value to add to the script(s).

Last edited by azdps; 01-07-2019 at 01:08 PM..
# 39  
Old 01-07-2019
Quote:
Originally Posted by azdps
Corona688 what's your coding solution to this segmentation fault? I didn't pull a disk so my RAM could be faulty.
It isn't. It is the programmers fault.

bakunin
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