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resty: use the nameservers in /etc/resolv.conf; if none, default to google's 2 open DNS servers, 8.8.8.8 and 8.8.4.4.

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Yichun Zhang (agentzh) 2014-08-20 21:03:27 -07:00
parent fd1f99ff52
commit fae163cc70
1 changed files with 23 additions and 0 deletions
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23
util/resty
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@ -44,6 +44,28 @@ if (@ARGV) {
my $conns = $opts{c} || 64;
my @nameservers;
# try to read the nameservers used by the system resolver:
if (open my $in, "/etc/resolv.conf") {
while (<$in>) {
if (/^\s*nameserver\s+(\d+(?:\.\d+){3})(?:\s+|$)/) {
push @nameservers, $1;
if (@nameservers > 10) {
last;
}
}
}
close $in;
}
if (!@nameservers) {
# default to Google's open DNS servers
push @nameservers, "8.8.8.8", "8.8.4.4";
}
warn "@nameservers\n";
my $prefix_dir = tempdir(CLEANUP => 1);
#warn "prefix dir: $prefix_dir\n";
@ -101,6 +123,7 @@ events {
http {
access_log off;
lua_socket_log_errors off;
resolver @nameservers;
init_by_lua '
local stdout = io.stdout