[src/trunk]: src pretty-print link addresses.

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3891ff168ce3
branches:  trunk
changeset: 344605:3891ff168ce3
user:      christos <christos%NetBSD.org@localhost>
date:      Wed Apr 06 18:04:58 2016 +0000

description:
pretty-print link addresses.

diffstat:

 lib/libutil/sockaddr_snprintf.c |  19 +++++++++++++------
 sys/net/dl_print.c              |   9 ++++++---
 2 files changed, 19 insertions(+), 9 deletions(-)

diffs (72 lines):

diff -r f3fc370c0b95 -r 3891ff168ce3 lib/libutil/sockaddr_snprintf.c
--- a/lib/libutil/sockaddr_snprintf.c   Wed Apr 06 17:34:33 2016 +0000
+++ b/lib/libutil/sockaddr_snprintf.c   Wed Apr 06 18:04:58 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sockaddr_snprintf.c,v 1.11 2013/12/31 12:58:02 mlelstv Exp $   */
+/*     $NetBSD: sockaddr_snprintf.c,v 1.12 2016/04/06 18:08:16 christos Exp $  */
 
 /*-
  * Copyright (c) 2004 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 #include <sys/cdefs.h>
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: sockaddr_snprintf.c,v 1.11 2013/12/31 12:58:02 mlelstv Exp $");
+__RCSID("$NetBSD: sockaddr_snprintf.c,v 1.12 2016/04/06 18:08:16 christos Exp $");
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
@@ -159,10 +159,17 @@
                break;
        case AF_LINK:
                sdl = ((const struct sockaddr_dl *)(const void *)sa);
-               (void)strlcpy(addr = abuf, link_ntoa(sdl), sizeof(abuf));
-               if ((w = strchr(addr, ':')) != 0) {
-                       *w++ = '\0';
-                       addr = w;
+               addr = abuf;
+               if (sdl->sdl_slen == 0 && sdl->sdl_nlen == 0
+                   && sdl->sdl_alen == 0) {
+                       (void)snprintf(abuf, sizeof(abuf), "link#%hu",
+                           sdl->sdl_index);
+               } else {
+                       (void)strlcpy(abuf, link_ntoa(sdl), sizeof(abuf));
+                       if ((w = strchr(addr, ':')) != 0) {
+                           *w++ = '\0';
+                           addr = w;
+                       }
                }
                break;
        default:
diff -r f3fc370c0b95 -r 3891ff168ce3 sys/net/dl_print.c
--- a/sys/net/dl_print.c        Wed Apr 06 17:34:33 2016 +0000
+++ b/sys/net/dl_print.c        Wed Apr 06 18:04:58 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: dl_print.c,v 1.2 2014/12/02 19:34:33 christos Exp $    */
+/*     $NetBSD: dl_print.c,v 1.3 2016/04/06 18:04:58 christos Exp $    */
 
 /*-
  * Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -29,10 +29,10 @@
 #include <sys/types.h>
 
 #ifdef _KERNEL
-__KERNEL_RCSID(0, "$NetBSD: dl_print.c,v 1.2 2014/12/02 19:34:33 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dl_print.c,v 1.3 2016/04/06 18:04:58 christos Exp $");
 #include <sys/systm.h>
 #else
-__RCSID("$NetBSD: dl_print.c,v 1.2 2014/12/02 19:34:33 christos Exp $");
+__RCSID("$NetBSD: dl_print.c,v 1.3 2016/04/06 18:04:58 christos Exp $");
 #include <stdio.h>
 static const uint8_t hexdigits[] = "0123456789abcdef";
 #endif
@@ -83,6 +83,9 @@
        const struct sockaddr_dl *sdl = v;
        char abuf[LINK_ADDRSTRLEN];
 
+       if (sdl->sdl_slen == 0 && sdl->sdl_nlen == 0 && sdl->sdl_alen == 0)
+               return snprintf(buf, len, "link#%hu", sdl->sdl_index);
+
        dl_print(abuf, sizeof(abuf), &sdl->sdl_addr);
        return snprintf(buf, len, "[%s]:%hu", abuf, sdl->sdl_index);
 }