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output values: address, netmask, hwaddress, ... #10

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output values: address, netmask, hwaddress, ... #10

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42 changes: 33 additions & 9 deletions readInterfaces.awk
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Original file line number Diff line number Diff line change
Expand Up @@ -3,18 +3,36 @@ BEGIN {
start = 0;

if (ARGC < 3 || ARGC > 5) {
print "awk -f readInterfaces.awk <interfaces file> device=<eth device> [output=all] [debug=1]"
print "awk -f readInterfaces.awk <interfaces file> device=<eth device> [output=address|netmask|gateway|hwaddress|ip|all, default:ip] [debug=1]"
exit 1;
}

outAll = 0
outAll = 0 # all posible data
outAddress = 0; # address only
outHwaddress = 0; # hwaddress only
outNetmask = 0; # network only
outGateway = 0; # gateway only
outIP = 1; # default : address, network & gateway

for (i = 2; i < ARGC; i++) {
split(ARGV[i], arg, "=");
if (arg[1] == "device")
device = arg[2];
else if (arg[1] == "output" && arg[2] == "all")
outAll = 1;
else if (arg[1] == "output") {
outIP = 0;
if (arg[2] == "all")
outAll = 1;
else if (arg[2] == "address")
outAddress = 1;
else if (arg[2] == "netmask")
outNetmask = 1;
else if (arg[2] == "gateway")
outGateway = 1;
else if (arg[2] == "hwaddress")
outHwaddress = 1;
else if (arg[2] == "ip")
outIP = 1;
}
else if (arg[1] == "debug" && arg[2] == "1")
debug = 1;
}
Expand Down Expand Up @@ -78,11 +96,17 @@ BEGIN {

END {
if (gotAddr) {
printf("%s %s %s\n", interface["address"], interface["netmask"], interface["gateway"]);
if (outAll) {
delete interface["address"];
delete interface["netmask"];
delete interface["gateway"];
if (outAddress)
printf("%s\n", interface["address"]);
else if (outNetmask)
printf("%s\n", interface["netmask"]);
else if (outGateway)
printf("%s\n", interface["gateway"]);
else if (outIP)
printf("%s %s %s\n", interface["address"], interface["netmask"], interface["gateway"]);
else if (outHwaddress)
printf("%s\n", interface["hwaddress"]);
else if (outAll) {
for (field in interface) {
printf("%s %s\n", field, interface[field]);
}
Expand Down