You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
2.1 KiB
57 lines
2.1 KiB
commit fbd6b5a4052316f7eb03c4617eebfaafc59dcc06 |
|
Author: Siddhesh Poyarekar <siddhesh@redhat.com> |
|
Date: Thu Mar 27 07:15:22 2014 +0530 |
|
|
|
Fix nscd lookup for innetgr when netgroup has wildcards (BZ #16758) |
|
|
|
nscd works correctly when the request in innetgr is a wildcard, |
|
i.e. when one or more of host, user or domain parameters is NULL. |
|
However, it does not work when the the triplet in the netgroup |
|
definition has a wildcard. This is easy to reproduce for a triplet |
|
defined as follows: |
|
|
|
foonet (,foo,) |
|
|
|
Here, an innetgr call that looks like this: |
|
|
|
innetgr ("foonet", "foohost", "foo", NULL); |
|
|
|
should succeed and so should: |
|
|
|
innetgr ("foonet", NULL, "foo", "foodomain"); |
|
|
|
It does succeed with nscd disabled, but not with nscd enabled. This |
|
fix adds this additional check for all three parts of the triplet so |
|
that it gives the correct result. |
|
|
|
[BZ #16758] |
|
* nscd/netgroupcache.c (addinnetgrX): Succeed if triplet has |
|
blank values. |
|
|
|
diff --git glibc-2.17-c758a686/nscd/netgroupcache.c glibc-2.17-c758a686/nscd/netgroupcache.c |
|
index 5ba1e1f..5d15aa4 100644 |
|
--- glibc-2.17-c758a686/nscd/netgroupcache.c |
|
+++ glibc-2.17-c758a686/nscd/netgroupcache.c |
|
@@ -560,15 +560,19 @@ addinnetgrX (struct database_dyn *db, int fd, request_header *req, |
|
{ |
|
bool success = true; |
|
|
|
- if (host != NULL) |
|
+ /* For the host, user and domain in each triplet, we assume success |
|
+ if the value is blank because that is how the wildcard entry to |
|
+ match anything is stored in the netgroup cache. */ |
|
+ if (host != NULL && *triplets != '\0') |
|
success = strcmp (host, triplets) == 0; |
|
triplets = (const char *) rawmemchr (triplets, '\0') + 1; |
|
|
|
- if (success && user != NULL) |
|
+ if (success && user != NULL && *triplets != '\0') |
|
success = strcmp (user, triplets) == 0; |
|
triplets = (const char *) rawmemchr (triplets, '\0') + 1; |
|
|
|
- if (success && (domain == NULL || strcmp (domain, triplets) == 0)) |
|
+ if (success && (domain == NULL || *triplets == '\0' |
|
+ || strcmp (domain, triplets) == 0)) |
|
{ |
|
dataset->resp.result = 1; |
|
break;
|
|
|