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Diffstat (limited to 'nis/nis_call.c')
-rw-r--r--nis/nis_call.c37
1 files changed, 29 insertions, 8 deletions
diff --git a/nis/nis_call.c b/nis/nis_call.c
index 32d29ae99f..8298dc304f 100644
--- a/nis/nis_call.c
+++ b/nis/nis_call.c
@@ -368,6 +368,11 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, nis_error *status)
domain ! (Now I understand why a root server must be a
replica of the parent domain) */
fd_res = __nis_finddirectory (dir, ndomain);
+ if (fd_res == NULL)
+ {
+ *status = NIS_NOMEMORY;
+ return NULL;
+ }
*status = fd_res->status;
if (fd_res->status != NIS_SUCCESS)
{
@@ -386,7 +391,11 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, nis_error *status)
/* We have found a NIS+ server serving ndomain, now
let us search for "name" */
nis_free_directory (dir);
- return rec_dirsearch (name, obj, status);
+ dir = rec_dirsearch (name, obj, status);
+ if (dir != obj)
+ /* This also covers the case dir == NULL. */
+ nis_free_directory (obj);
+ return dir;
}
else
{
@@ -433,6 +442,11 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, nis_error *status)
strcpy (cp, domain);
fd_res = __nis_finddirectory (dir, leaf);
+ if (fd_res == NULL)
+ {
+ *status = NIS_NOMEMORY;
+ return NULL;
+ }
*status = fd_res->status;
if (fd_res->status != NIS_SUCCESS)
{
@@ -484,6 +498,8 @@ first_shoot (const_nis_name name, directory_obj *dir)
return dir;
fd_res = __nis_finddirectory (dir, domain);
+ if (fd_res == NULL)
+ return NULL;
if (fd_res->status == NIS_SUCCESS
&& (obj = calloc (1, sizeof (directory_obj))) != NULL)
{
@@ -513,28 +529,33 @@ __nisfind_server (const_nis_name name, directory_obj **dir)
dir = __nis_cache_search (name, flags, &cinfo);
#endif
+ nis_error result = NIS_SUCCESS;
if (*dir == NULL)
{
nis_error status;
directory_obj *obj;
*dir = readColdStartFile ();
- if (*dir == NULL) /* No /var/nis/NIS_COLD_START->no NIS+ installed */
+ if (*dir == NULL)
+ /* No /var/nis/NIS_COLD_START->no NIS+ installed. */
return NIS_UNAVAIL;
/* Try at first, if servers in "dir" know our object */
obj = first_shoot (name, *dir);
if (obj == NULL)
{
- *dir = rec_dirsearch (name, *dir, &status);
- if (*dir == NULL)
- return status;
+ obj = rec_dirsearch (name, *dir, &status);
+ if (obj == NULL)
+ result = status;
+
+ if (*dir != obj)
+ nis_free_directory (*dir);
}
- else
- *dir = obj;
+
+ *dir = obj;
}
- return NIS_SUCCESS;
+ return result;
}
nis_error