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Restored the (buggy) historical behaviour of getdomainname().

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Negative name lengths for getdomainname() and setdomainname() were
converted to large positive ones by misdeclaring the args struct.
This commit is contained in:
Bruce Evans 1995-11-12 07:04:30 +00:00
parent d2d3e8751c
commit f35a53bf11
1 changed files with 6 additions and 6 deletions
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12
sys/kern/kern_xxx.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)kern_xxx.c 8.2 (Berkeley) 11/14/93
* $Id: kern_xxx.c,v 1.16 1995/11/11 01:04:42 bde Exp $
* $Id: kern_xxx.c,v 1.17 1995/11/12 06:43:03 bde Exp $
*/
#include <sys/param.h>
@ -269,10 +269,10 @@ uname(p, uap, retval)
#ifndef _SYS_SYSPROTO_H_
struct getdomainname_args {
char *domainname;
u_int len;
int len;
};
#endif
/* ARGSUSED */
int
getdomainname(p, uap, retval)
@ -280,7 +280,7 @@ getdomainname(p, uap, retval)
struct getdomainname_args *uap;
int *retval;
{
if (uap->len > domainnamelen + 1)
if ((u_int)uap->len > domainnamelen + 1)
uap->len = domainnamelen + 1;
return (copyout((caddr_t)domainname, (caddr_t)uap->domainname, uap->len));
}
@ -288,7 +288,7 @@ getdomainname(p, uap, retval)
#ifndef _SYS_SYSPROTO_H_
struct setdomainname_args {
char *domainname;
u_int len;
int len;
};
#endif
@ -303,7 +303,7 @@ setdomainname(p, uap, retval)
if ((error = suser(p->p_ucred, &p->p_acflag)))
return (error);
if (uap->len > sizeof (domainname) - 1)
if ((u_int)uap->len > sizeof (domainname) - 1)
return EINVAL;
domainnamelen = uap->len;
error = copyin((caddr_t)uap->domainname, domainname, uap->len);