file magic for mprime save files
 

From the mprime source code I see that the save files for ECM and P-1 tests have a magic number, so I have made the following entries for /etc/magic so the 'file' program will recognise them:

[code]#
# ECM save file eNNNNNNN
#
0 ulong 0x1a2b3cd4 Prime95 ECM data,
>4 ulong x version %lu,
>24 ulong x B1=%lu,
>12 ulong x curve #%lu,
>8 ulong 0 in stage 1,
>>28 ulong x at prime %lu
>8 ulong 1 in stage 2,
>>32 ulong x at prime %lu
#
# P-1 save file mNNNNNNN
#
0 ulong 0x1a2b3c4d Prime95 P-1 data,
>4 ulong x version %lu,
>16 ulong x B1=%lu,
>28 ulong >0 B2=%lu,
>8 ulong 0 in stage 1
>8 ulong 1 in stage 2
>8 ulong 2 complete
>8 ulong 3 in stage 1[/code]

There is more information in the files that would be nice to be able to extract, such as actual P-1 progress rather than just which stage it is in, but I am not sure how to do it with 'magic' format. This is an example of the output from file:

[code]$ file e0001522
e0001522: Prime95 ECM data, version 1, B1=44000000, curve #152, in stage 2, at prime 453577741[/code]