[src/trunk]: src/lib/libc/net Make sure that "h_addr_list" pointers are longw...

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

details:   https://anonhg.NetBSD.org/src/rev/ae263260c37d
branches:  trunk
changeset: 474767:ae263260c37d
user:      tron <tron%NetBSD.org@localhost>
date:      Mon Jul 19 17:43:59 1999 +0000

description:
Make sure that "h_addr_list" pointers are longword aligned because some
broken applications depend on it. Fixes PR lib/8032 by David K Brownlee.

diffstat:

 lib/libc/net/gethnamaddr.c |  10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diffs (45 lines):

diff -r 943ac0499962 -r ae263260c37d lib/libc/net/gethnamaddr.c
--- a/lib/libc/net/gethnamaddr.c        Mon Jul 19 15:49:39 1999 +0000
+++ b/lib/libc/net/gethnamaddr.c        Mon Jul 19 17:43:59 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: gethnamaddr.c,v 1.21 1999/07/06 02:00:41 itojun Exp $  */
+/*     $NetBSD: gethnamaddr.c,v 1.22 1999/07/19 17:43:59 tron Exp $    */
 
 /*
  * ++Copyright++ 1985, 1988, 1993
@@ -61,7 +61,7 @@
 static char sccsid[] = "@(#)gethostnamadr.c    8.1 (Berkeley) 6/4/93";
 static char rcsid[] = "Id: gethnamaddr.c,v 8.21 1997/06/01 20:34:37 vixie Exp ";
 #else
-__RCSID("$NetBSD: gethnamaddr.c,v 1.21 1999/07/06 02:00:41 itojun Exp $");
+__RCSID("$NetBSD: gethnamaddr.c,v 1.22 1999/07/19 17:43:59 tron Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -818,7 +818,8 @@
                        register char *src;
 
                        bufsize = strlen(p->h_name) + 2 +
-                                 MAXADDRS * p->h_length;
+                                 MAXADDRS * p->h_length +
+                                 ALIGNBYTES;
                        for (cp = p->h_aliases; *cp != NULL; cp++)
                                bufsize += strlen(*cp) + 1;
 
@@ -835,6 +836,8 @@
                                while ((*ptr++ = *src++) != '\0');
                        }
                        *ptr++ = '\0';
+
+                       ptr = (char *)ALIGN(ptr);
                }
 
                (void)memcpy(ptr, p->h_addr_list[0], (size_t)p->h_length);
@@ -865,6 +868,7 @@
        ptr++;
        *cp = NULL;
 
+       ptr = (char *)ALIGN(ptr);
        cp = h_addr_ptrs;
        while (num--) {
                *cp++ = ptr;