When not attaching to an existing network namespace, pasta always
spawns an interactive shell in a new namespace to attach to.  Most
commands which can issue a shell in a modified environment can also
issue other commands as well (e.g. env, strace).  We want to allow
pasta to do the same.

Because of the way the non-option argument to pasta is currently
overloaded, allowing this requires some other changes to the way we
parse the command line.

David Gibson (8):
  conf: Make the argument to --pcap option mandatory
  conf: Use "-D none" and "-S none" instead of missing empty option
    arguments
  Correct manpage for --userns
  Remove --nsrun-dir option
  Move ENOENT error message into conf_ns_opt()
  More deterministic detection of whether argument is a PID, PATH or
    NAME
  Use explicit --netns option rather than multiplexing with PID
  Allow pasta to take a command to execute

 conf.c  | 269 +++++++++++++++++++++++++++++---------------------------
 passt.1 |  54 ++++++------
 pasta.c |  33 ++++---
 pasta.h |   2 +-
 pcap.c  |  28 ------
 5 files changed, 191 insertions(+), 195 deletions(-)

-- 
2.37.2