Add DNS support
On 04 Oct 2008 Pieter posted a dns implementation for U-Boot.
http://www.mail-archive.com/u-boot-users@lists.sourceforge.net/msg10216.html
>
> DNS can be enabled by setting CFG_CMD_DNS. After performing a query,
> the serverip environment var is updated.
>
> Probably there are some cosmetic issues with the patch. Unfortunatly I
> do not have the time to correct these. So if anybody else likes DNS
> support in U-Boot and has the time, feel free to patch it in the main tree.
Here it is again - slightly modified & smaller:
- update to 2009-06 (Pieter's patch was for U-Boot 1.2.0)
- README.dns is added
- syntax is changed (now takes a third option, the env var to store
the result in)
- add a random port() function in net.c
- sort Makefile in ./net/Makefile
- dns just returns unless a env var is given
- run through checkpatch, and clean up style issues
- remove packet from stack
- cleaned up some comments
- failure returns much faster (if server responds, don't wait for
timeout)
- use built in functions (memcpy) rather than byte copy.
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Pieter Voorthuijsen <pieter.voorthuijsen@prodrive.nl>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/net/Makefile b/net/Makefile
index d341874..835a04a 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -27,13 +27,14 @@
LIB = $(obj)libnet.a
-COBJS-y += net.o
-COBJS-y += tftp.o
COBJS-y += bootp.o
-COBJS-y += rarp.o
+COBJS-$(CONFIG_CMD_DNS) += dns.o
COBJS-y += eth.o
+COBJS-y += net.o
COBJS-y += nfs.o
+COBJS-y += rarp.o
COBJS-$(CONFIG_CMD_SNTP) += sntp.o
+COBJS-y += tftp.o
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)