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Made this work for non-root again. The security fixes in rev.1.11

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were equivalent to disabling its setgid'ness, since the default
kernel was not distinguished from a user-specified kernel.
This commit is contained in:
Bruce Evans 1996-10-25 15:36:42 +00:00
parent fab5b1c43d
commit 378817d2ee
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=19178
1 changed files with 15 additions and 10 deletions
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25
usr.sbin/ncrcontrol/ncrcontrol.c
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@ -1,6 +1,6 @@
/**************************************************************************
**
** $Id: ncrcontrol.c,v 1.10 1995/12/28 14:40:59 se Exp $
** $Id: ncrcontrol.c,v 1.11 1996/05/30 02:19:43 pst Exp $
**
** Utility for NCR 53C810 device driver.
**
@ -181,15 +181,6 @@ void open_kvm(int flags)
if (kvm_isopen) return;
#if (__FreeBSD__ >= 2)
if (!vmunix) {
vmunix = getbootfile();
}
#else
if (!vmunix) {
vmunix = _PATH_UNIX;
}
#endif
#if defined(__NetBSD__) || (__FreeBSD__ >= 2)
/*
* Discard setgid privileges if not the running kernel so that bad
@ -197,6 +188,13 @@ void open_kvm(int flags)
*/
if (vmunix != NULL || kmemf != NULL)
setgid(getgid());
else {
#if (__FreeBSD__ >= 2)
vmunix = getbootfile();
#else
vmunix = _PATH_UNIX;
#endif
}
kvm = kvm_openfiles(vmunix, kmemf, NULL, flags, errbuf);
if (kvm == NULL) {
@ -204,6 +202,13 @@ void open_kvm(int flags)
exit(1);
}
#else
if (vmunix != NULL) {
#if (__FreeBSD__ >= 2)
vmunix = getbootfile();
#else
vmunix = _PATH_UNIX;
#endif
}
if (kvm_openfiles(vmunix, kmemf, NULL) == -1) {
fprintf(stderr, "%s: kvm_openfiles: %s\n", prog, kvm_geterr());
exit(1);