This was supposed to be just a cherry-pick of the referenced
commit. However there were two problems:
1. kill code was moved out to its own file
2. strtosig() had a latent bug where signal numbers were not
converted to names.
Original note:
kill -lHUP would work correctly, but kill -l HUP would not.
The list option in kill was hit by a quirk of getopt_long where an
option with an optional argument would not attempt to get the argument
beyond the space, even though a mandatory argument would do that.
The fix is a kludge to scan to the next argument and if it looks
like something we can use, use it. Lucky for us, the list option is
one where parsing can stop immediately.
Thanks to Brian Vandenberg for the way forward.
References:
http://stackoverflow.com/questions/1052746/getopt-does-not-parse-optional-arguments-to-parametershttps://bugs.debian.org/854407
commit 537cea324b121f54744369425332c256aa84a181
Shell kill would report a problem if you tried to kill a process
while procps kill was silent. This meant it looked like kill worked
when it actually failed.
References:
commit 07642b8ea6https://bugs.debian.org/733172
The first part of fixing skill/snice to use the library instead
of directly readdir()ing /proc which is what it does now.
Remove the kill code from the skill/snice code and put common
elements into lib/signals.c Not 100% sure that is the right
destination instead of a new lib file, but ok for now.
kill shares some parsing logic with skill/snice but mainly
around signal specifications. The "do it" code is very different.
Signed-off-by: Craig Small <csmall@enc.com.au>
