Michael Smith writes:

I noticed a problem with ifconfig in busybox 0.60.5. The matching code
seems to exist in busybox CVS as well, so I'll paste in the patch that
fixed it.

I was running:
 # ifconfig wan0 1.2.3.4 pointopoint 1.2.3.5 netmask 255.255.255.255

I was seeing the inet addr and P-t-P addr both being set to 1.2.3.5
(the pointopoint address).

wan0      Link encap:Point-Point Protocol
          inet addr:1.2.3.5  P-t-P:1.2.3.5  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1
          ...

The patch below seems to fix it.

1 files changed, 2 insertions, 2 deletions

diff --git a/networking/ifconfig.c b/networking/ifconfig.c
index ef6a6f746..9fdab3c3f 100644
--- a/networking/ifconfig.c
+++ b/networking/ifconfig.c
@@ -15,7 +15,7 @@
  * Foundation;  either  version 2 of the License, or  (at
  * your option) any later version.
  *
- * $Id: ifconfig.c,v 1.26 2003/06/21 09:05:49 andersen Exp $
+ * $Id: ifconfig.c,v 1.27 2003/11/14 03:04:08 andersen Exp $
  *
  */
 
@@ -163,7 +163,7 @@ struct in6_ifreq {
 #define ARG_NETMASK      (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_NETMASK)
 #define ARG_BROADCAST    (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_BROADCAST)
 #define ARG_HW           (A_ARG_REQ | A_CAST_HOST_COPY_IN_ETHER)
-#define ARG_POINTOPOINT  (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER)
+#define ARG_POINTOPOINT  (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER)
 #define ARG_KEEPALIVE    (A_ARG_REQ | A_CAST_CHAR_PTR)
 #define ARG_OUTFILL      (A_ARG_REQ | A_CAST_CHAR_PTR)
 #define ARG_HOSTNAME     (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_COLON_CHK | A_HOSTNAME)