sccs 899 B

123456789101112131415161718192021222324
  1. #------------------------------------------------------------------------------
  2. # $File: sccs,v 1.8 2020/06/20 21:32:52 christos Exp $
  3. # sccs: file(1) magic for SCCS archives
  4. #
  5. # SCCS v4 archive structure:
  6. # \001h01207
  7. # \001s 00276/00000/00000
  8. # \001d D 1.1 87/09/23 08:09:20 ian 1 0
  9. # \001c date and time created 87/09/23 08:09:20 by ian
  10. # \001e
  11. # \001u
  12. # \001U
  13. # ... etc.
  14. # Now '\001h' happens to be the same as the 3B20's a.out magic number (0550).
  15. # *Sigh*. And these both came from various parts of the USG.
  16. # Maybe we should just switch everybody from SCCS to RCS!
  17. # Further, you can't just say '\001h0', because the five-digit number
  18. # is a checksum that could (presumably) have any leading digit,
  19. # Fortunately we have regular expression matching:
  20. 0 string \001h
  21. >2 regex [0-9][0-9][0-9][0-9][0-9]$
  22. >>8 string \001s\040 SCCS v4 archive data
  23. >2 string V6,sum= SCCS v6 archive data