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return better error message for -EAGAIN

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This commit is contained in:
Michael Stapelberg 2018-06-01 22:18:30 +02:00
parent c05bd22afe
commit 2079aea3a1
1 changed files with 6 additions and 1 deletions
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7
internal/dhcp4/dhcp4.go
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@ -9,6 +9,7 @@ import (
"log" "log"
"net" "net"
"sync" "sync"
"syscall"
"time" "time"
"golang.org/x/sys/unix" "golang.org/x/sys/unix"
@ -81,7 +82,11 @@ func (c *Client) ObtainOrRenew() bool {
// TODO: renew if c.ack != nil, fall back if renewal fails // TODO: renew if c.ack != nil, fall back if renewal fails
ok, ack, err := c.dhcpRequest() ok, ack, err := c.dhcpRequest()
if err != nil { if err != nil {
c.err = err if errno, ok := err.(syscall.Errno); ok && errno == syscall.EAGAIN {
c.err = fmt.Errorf("DHCP: timeout (server(s) unreachable)")
return true // temporary error
}
c.err = fmt.Errorf("DHCP: %v", err)
return true // temporary error return true // temporary error
} }
if !ok { if !ok {