diff options
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/gen/getnetgrent.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/libc/gen/getnetgrent.c b/lib/libc/gen/getnetgrent.c index a7ab735c..68e5ebd 100644 --- a/lib/libc/gen/getnetgrent.c +++ b/lib/libc/gen/getnetgrent.c @@ -96,6 +96,10 @@ void setnetgrent(group) char *group; { + /* Sanity check: no null group names allowed! */ + + if (group == NULL || *group == '\0') + return; if (grouphead.gr == (struct netgrp *)0 || strcmp(group, grouphead.grname)) { endnetgrent(); |
