diff options
Diffstat (limited to 'contrib/bind/res/res_comp.c')
| -rw-r--r-- | contrib/bind/res/res_comp.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/contrib/bind/res/res_comp.c b/contrib/bind/res/res_comp.c index 5008d47..e21a9fb 100644 --- a/contrib/bind/res/res_comp.c +++ b/contrib/bind/res/res_comp.c @@ -55,7 +55,7 @@ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "@(#)res_comp.c 8.1 (Berkeley) 6/4/93"; -static char rcsid[] = "$Id: res_comp.c,v 8.11 1996/12/02 09:17:22 vixie Exp $"; +static char rcsid[] = "$Id: res_comp.c,v 8.12 1997/06/01 20:34:37 vixie Exp $"; #endif /* LIBC_SCCS and not lint */ #include <sys/types.h> @@ -94,7 +94,7 @@ dn_expand(msg, eomorig, comp_dn, exp_dn, length) register char *dn; register int n, c; char *eom; - int len = -1, checked = 0; + int len = -1, checked = 0, octets = 0; dn = exp_dn; cp = comp_dn; @@ -108,6 +108,9 @@ dn_expand(msg, eomorig, comp_dn, exp_dn, length) */ switch (n & INDIR_MASK) { case 0: + octets += (n + 1); + if (octets > MAXCDNAME) + return (-1); if (dn != exp_dn) { if (dn >= eom) return (-1); @@ -179,6 +182,8 @@ dn_comp(exp_dn, comp_dn, length, dnptrs, lastdnptr) dn = (u_char *)exp_dn; cp = comp_dn; + if (length > MAXCDNAME) + length = MAXCDNAME; eob = cp + length; lpp = cpp = NULL; if (dnptrs != NULL) { |
