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Be extra paranoid about trusting the size of the address returned from

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gethostbyaddr.
Submitted by:	Julian Assange
This commit is contained in:
Warner Losh 1997-12-24 00:57:41 +00:00
parent 6fefd43684
commit 9ae323c5f0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=31954
1 changed files with 2 additions and 2 deletions
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4
sbin/ifconfig/ifconfig.c
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@ -42,7 +42,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
*/
static const char rcsid[] =
"$Id: ifconfig.c,v 1.31 1997/10/16 03:55:28 peter Exp $";
"$Id: ifconfig.c,v 1.32 1997/10/27 03:28:44 steve Exp $";
#endif /* not lint */
#include <sys/param.h>
@ -1035,7 +1035,7 @@ in_getaddr(s, which)
if (inet_aton(s, &sin->sin_addr))
return;
if ((hp = gethostbyname(s)) != 0)
bcopy(hp->h_addr, (char *)&sin->sin_addr, hp->h_length);
bcopy(hp->h_addr, (char *)&sin->sin_addr, MIN(hp->h_length, sizeof(sin->sin_addr)));
else if ((np = getnetbyname(s)) != 0)
sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
else