1234567891011121314151617181920 |
- Once upon a time Upas ran on many versions of Unix.
- This is a partial rewrite to ANSI C specifically for Plan 9.
- It uses's Plan 9's bio library instead of stdio and Plan 9's
- regular expression library.
- I've tried to make portability possible but it has
- never been ported. To port Upas to another system:
- - port Plan 9's libbio library working on that system (already available).
- - port Plan 9's regexp library working on that system (should just compile).
- - rewrite common/libsys.c to reflect system calls for that system. This
- file contains all the really system dependent code that differs between
- Plan 9 and each Unix. This includes file management, signal
- handling, process control and error handling.
- - change the important directory trees in common/mail.c to reflect
- where you want things like
- - get the ARGBEGIN/ARGEND/ARGF macros from Plan 9's libc.h
- - get the include files correct in common/sys.h
- - rewrite smtp/mxdial to use the conventions of that system
- - rewrite runq.c to walk queues on that system.
|