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Watch out for null hostnames in netgroup entries, to avoid dumping core.

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This happens if someone tries to export to a netgroup like:

mygroup		(,,mynisdomain)
This commit is contained in:
Joerg Wunsch 1998-06-15 15:41:41 +00:00
parent f67d01d564
commit 9d70a1569c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=37003
2 changed files with 8 additions and 4 deletions
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6
sbin/mountd/mountd.c
View File

@ -43,7 +43,7 @@ static char copyright[] =
#ifndef lint
/*static char sccsid[] = "@(#)mountd.c 8.15 (Berkeley) 5/1/95"; */
static const char rcsid[] =
"$Id: mountd.c,v 1.27 1997/12/13 19:50:14 guido Exp $";
"$Id: mountd.c,v 1.28 1998/01/20 15:22:27 bde Exp $";
#endif /*not lint*/
#include <sys/param.h>
@ -913,7 +913,9 @@ get_exportlist()
grp = grp->gr_next;
}
if (netgrp) {
if (get_host(hst, grp, tgrp)) {
if (hst == 0) {
syslog(LOG_ERR, "Null hostname in netgroup %s, skipping", cp);
} else if (get_host(hst, grp, tgrp)) {
syslog(LOG_ERR, "Bad host %s in netgroup %s, skipping", hst, cp);
grp->gr_type = GT_IGNORE;
}

6
usr.sbin/mountd/mountd.c
View File

@ -43,7 +43,7 @@ static char copyright[] =
#ifndef lint
/*static char sccsid[] = "@(#)mountd.c 8.15 (Berkeley) 5/1/95"; */
static const char rcsid[] =
"$Id: mountd.c,v 1.27 1997/12/13 19:50:14 guido Exp $";
"$Id: mountd.c,v 1.28 1998/01/20 15:22:27 bde Exp $";
#endif /*not lint*/
#include <sys/param.h>
@ -913,7 +913,9 @@ get_exportlist()
grp = grp->gr_next;
}
if (netgrp) {
if (get_host(hst, grp, tgrp)) {
if (hst == 0) {
syslog(LOG_ERR, "Null hostname in netgroup %s, skipping", cp);
} else if (get_host(hst, grp, tgrp)) {
syslog(LOG_ERR, "Bad host %s in netgroup %s, skipping", hst, cp);
grp->gr_type = GT_IGNORE;
}