zsh: add netsniff-ng zsh auto completion support

Hideo Hattori wrote a set of auto completion scripts for zsh that
support netsniff-ng tools. Big thanks for that! Follow-up commits
still need to address updated command-line options.

Signed-off-by: Hideo Hattori <hhatto.jp@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

1 files changed, 69 insertions, 0 deletions

diff --git a/netsniff-ng.zsh b/netsniff-ng.zsh
new file mode 100644
index 0000000..122d661
--- /dev/null
+++ b/netsniff-ng.zsh
@@ -0,0 +1,69 @@
+#compdef netsniff-ng
+#
+# netsniff-ng.zsh -- zsh completion function for netsniff-ng
+#
+# Copyright (C) 2013 Hideo Hattori <hhatto.jp@gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+typeset -A opt_args
+local context state line
+
+_cpu () {
+    _cpus=(${${(f)"$(grep processor /proc/cpuinfo | awk '{print $3}')"}})
+    compadd -a _cpus
+}
+
+_user_info () {
+    user_info=(${${(f)"$(awk -F':' '{print $3":"$1}' /etc/passwd)"}})
+    _describe -t usr "user info" user_info && ret=0
+}
+
+_group_info () {
+    group_info=(${${(f)"$(awk -F':' '{print $4":"$1}' /etc/passwd)"}})
+    _describe -t usr "group info" group_info && ret=0
+}
+
+_interfaces () {
+    _wanted interfaces expl 'network interface' \
+    _net_interfaces
+    _values "Pseudo-device that captures on all interfaces" "any"
+}
+
+_arguments -s -S \
+    "(-i -d --dev --in)"{-i,-d,--dev,--in}"[Input source as netdev, pcap or pcap stdin]:input:_interfaces" \
+    "(-o --out)"{-o,--out}"[Output sink as netdev, pcap, directory, trafgen, or stdout]::_gnu_generic" \
+    "(-f --filter)"{-f,--filter}"[Use BPF filter file from bpfc or tcpdump-like expression]" \
+    "(-t --type)"{-t,--type}"[Filter type]:filter:(host broadcast multicast others outgoing)" \
+    "(-F --interval)"{-F,--interval}"[Dump interval if -o is a dir: <num>KiB/MiB/GiB/s/sec/min/hrs]:interval:_gnu_generic" \
+    "(-J --jumbo-support)"{-J,--jumbo-support}"[Support for 64KB Super Jumbo Frames (def: 2048B)]" \
+    "(-R --rfraw)"{-R,--rfraw}"[Capture or inject raw 802.11 frames]" \
+    "(-n --num)"{-n,--num}"[Number of packets until exit (def: 0)]" \
+    "(-P --prefix)"{-P,--prefix}"[Prefix for pcaps stored in directory]" \
+    "(-T --magic)"{-T,--magic}"[Pcap magic number/pcap format to store, see -D]" \
+    "(-D --dump-pcap-types)"{-D,--dump-pcap-types}"[Dump pcap types and magic numbers and quit]" \
+    "(-B --dump-bpf)"{-B,--dump-bpf}"[Dump generated BPF assembly]" \
+    "(-r --rand)"{-r,--rand}"[Randomize packet forwarding order (dev->dev)]" \
+    "(-M --no-promisc)"{-M,--no-promisc}"[No promiscuous mode for netdev]" \
+    "(-A --no-sock-mem)"{-A,--no-sock-mem}"[Don\'t tune core socket memory]" \
+    "(-m --mmap)"{-m,--mmap}"[Mmap(2) pcap file i.e., for replaying pcaps]" \
+    "(-G --sg)"{-G,--sg}"[Scatter/gather pcap file I/O]" \
+    "(-c --clrw)"{-c,--clrw}"[Use slower read(2)/write(2) I/O]" \
+    "(-S --ring-size)"{-S,--ring-size}"[Specify ring size to: <num>KiB/MiB/GiB]:ringsize:" \
+    "(-k --kernel-pull)"{-k,--kernel-pull}"[Kernel pull from user interval in us (def: 10us)]:kernelpull:_gnu_generic" \
+    "(-b --bind-cpu)"{-b,--bind-cpu}"[Bind to specific CPU]:cpunum:_cpu" \
+    "(-u --user)"{-u,--user}"[Drop privileges and change to userid]:user:_user_info" \
+    "(-g --group)"{-g,--group}"[Drop privileges and change to groupid]:group:_group_info" \
+    "(-H --prio-high)"{-H,--prio-high}"[Make this high priority process]" \
+    "(-Q --notouch-irq)"{-Q,--notouch-irq}"[Do not touch IRQ CPU affinity of NIC]" \
+    "(-s --silent)"{-s,--silent}"[Do not print captured packets]" \
+    "(-q --less)"{-q,--less}"[Print less-verbose packet information]" \
+    "(-X --hex)"{-X,--hex}"[Print packet data in hex format]" \
+    "(-l --ascii)"{-l,--ascii}"[Print human-readable packet data]" \
+    "(-U --update)"{-U,--update}"[Update GeoIP databases]" \
+    "(-V --verbose)"{-V,--verbose}"[Be more verbose]" \
+    {-v,--version}"[Show version]:" \
+    {-h,--help}"[Guess what?!]:" \
+    "*::args:_gnu_generic"