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package errors
import (
"fmt"
"log"
"os"
"github.com/coredns/coredns/core/dnsserver"
"github.com/coredns/coredns/middleware"
"github.com/mholt/caddy"
)
func init() {
caddy.RegisterPlugin("errors", caddy.Plugin{
ServerType: "dns",
Action: setup,
})
}
func setup(c *caddy.Controller) error {
handler, err := errorsParse(c)
if err != nil {
return middleware.Error("errors", err)
}
handler.Log = log.New(os.Stdout, "", 0)
dnsserver.GetConfig(c).AddMiddleware(func(next middleware.Handler) middleware.Handler {
handler.Next = next
return handler
})
return nil
}
func errorsParse(c *caddy.Controller) (errorHandler, error) {
handler := errorHandler{}
for c.Next() {
args := c.RemainingArgs()
switch len(args) {
case 0:
handler.LogFile = "stdout"
case 1:
if args[0] != "stdout" {
return handler, fmt.Errorf("invalid log file: %s", args[0])
}
handler.LogFile = args[0]
default:
return handler, c.ArgErr()
}
}
return handler, nil
}
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