diff options
Diffstat (limited to 'nis')
| -rw-r--r-- | nis/nis_call.c | 37 |
1 files changed, 29 insertions, 8 deletions
diff --git a/nis/nis_call.c b/nis/nis_call.c index 32d29ae..8298dc3 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 |