RESPONDER: Add a helper function sss_resp_create_fqname

When looking up entries in the responders that have not been yet
converted to the cache_req API, we need to perform some common
operations all the time. These include converting the name to the right
case, reverse-replacing whitespace and converting the name to the qualified
format for that domain.

This patch adds a function that performs these steps to avoid code
duplication.

Reviewed-by: Sumit Bose <sbose@redhat.com>

2 files changed, 50 insertions, 0 deletions

diff --git a/src/responder/common/responder.h b/src/responder/common/responder.h
index 23e7d46f8..335b313ce 100644
--- a/src/responder/common/responder.h
+++ b/src/responder/common/responder.h
@@ -356,4 +356,10 @@ errno_t sss_parse_inp_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 const char **parse_attr_list_ex(TALLOC_CTX *mem_ctx, const char *conf_str,
                                 const char **defaults);
 
+char *sss_resp_create_fqname(TALLOC_CTX *mem_ctx,
+                             struct resp_ctx *rctx,
+                             struct sss_domain_info *dom,
+                             bool name_is_upn,
+                             const char *orig_name);
+
 #endif /* __SSS_RESPONDER_H__ */
diff --git a/src/responder/common/responder_utils.c b/src/responder/common/responder_utils.c
index 815b61b39..b02212dfd 100644
--- a/src/responder/common/responder_utils.c
+++ b/src/responder/common/responder_utils.c
@@ -22,6 +22,7 @@
 
 #include <talloc.h>
 
+#include "responder/common/responder.h"
 #include "util/util.h"
 
 static inline bool
@@ -149,3 +150,46 @@ done:
     talloc_free(tmp_ctx);
     return res;
 }
+
+char *sss_resp_create_fqname(TALLOC_CTX *mem_ctx,
+                             struct resp_ctx *rctx,
+                             struct sss_domain_info *dom,
+                             bool name_is_upn,
+                             const char *orig_name)
+{
+    TALLOC_CTX *tmp_ctx;
+    char *name;
+
+    tmp_ctx = talloc_new(NULL);
+    if (tmp_ctx == NULL) {
+        return NULL;
+    }
+
+    name = sss_get_cased_name(tmp_ctx, orig_name, dom->case_sensitive);
+    if (name == NULL) {
+        DEBUG(SSSDBG_CRIT_FAILURE, "sss_get_cased_name failed\n");
+        talloc_free(tmp_ctx);
+        return NULL;
+    }
+
+    name = sss_reverse_replace_space(tmp_ctx, name, rctx->override_space);
+    if (name == NULL) {
+        DEBUG(SSSDBG_CRIT_FAILURE, "sss_reverse_replace_space failed\n");
+        talloc_free(tmp_ctx);
+        return NULL;
+    }
+
+
+    if (name_is_upn == false) {
+        name = sss_create_internal_fqname(tmp_ctx, name, dom->name);
+        if (name == NULL) {
+            DEBUG(SSSDBG_CRIT_FAILURE, "sss_create_internal_fqname failed\n");
+            talloc_free(tmp_ctx);
+            return NULL;
+        }
+    }
+
+    name = talloc_steal(mem_ctx, name);
+    talloc_free(tmp_ctx);
+    return name;
+}