David du Colombier 2d4f830104 Plan 9 from Bell Labs 2003-09-19 20 years ago
..
alias 215f76e2af Plan 9 from Bell Labs 2003-06-16 21 years ago
common 215f76e2af Plan 9 from Bell Labs 2003-06-16 21 years ago
filterkit 3e4111cad4 Plan 9 from Bell Labs 2003-09-18 20 years ago
fs 2d4f830104 Plan 9 from Bell Labs 2003-09-19 20 years ago
marshal 8eafe5f053 Plan 9 from Bell Labs 2003-07-04 21 years ago
misc c0f3d9569e Plan 9 from Bell Labs 2002-12-12 21 years ago
ml 3e4111cad4 Plan 9 from Bell Labs 2003-09-18 20 years ago
ned 25e738d841 Plan 9 from Bell Labs 2003-08-29 20 years ago
pop3 3e4111cad4 Plan 9 from Bell Labs 2003-09-18 20 years ago
q 2d4f830104 Plan 9 from Bell Labs 2003-09-19 20 years ago
scanmail a3a7fea79b Plan 9 from Bell Labs 2003-03-26 21 years ago
send c0f3d9569e Plan 9 from Bell Labs 2002-12-12 21 years ago
smtp f4f58affd1 Plan 9 from Bell Labs 2003-08-26 20 years ago
vf c0f3d9569e Plan 9 from Bell Labs 2002-12-12 21 years ago
README c0f3d9569e Plan 9 from Bell Labs 2002-12-12 21 years ago
mkfile c0f3d9569e Plan 9 from Bell Labs 2002-12-12 21 years ago

README

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.