1 files changed, 65 insertions, 0 deletions
diff --git a/src/util/util.c b/src/util/util.c
index d78d37d97..2acb8604a 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -815,3 +815,68 @@ const char * const * get_known_services(void)
 
     return svc;
 }
+
+errno_t add_strings_lists(TALLOC_CTX *mem_ctx, const char **l1, const char **l2,
+                          bool copy_strings, char ***_new_list)
+{
+    size_t c;
+    size_t l1_count = 0;
+    size_t l2_count = 0;
+    size_t new_count = 0;
+    char **new;
+    int ret;
+
+    if (l1 != NULL) {
+        for (l1_count = 0; l1[l1_count] != NULL; l1_count++);
+    }
+
+    if (l2 != NULL) {
+        for (l2_count = 0; l2[l2_count] != NULL; l2_count++);
+    }
+
+    new_count = l1_count + l2_count;
+
+    new = talloc_array(mem_ctx, char *, new_count + 1);
+    if (new == NULL) {
+        DEBUG(SSSDBG_OP_FAILURE, "talloc_array failed.\n");
+        return ENOMEM;
+    }
+    new [new_count] = NULL;
+
+    if (copy_strings) {
+        for(c = 0; c < l1_count; c++) {
+            new[c] = talloc_strdup(new, l1[c]);
+            if (new[c] == NULL) {
+                DEBUG(SSSDBG_OP_FAILURE, "talloc_strdup failed.\n");
+                ret = ENOMEM;
+                goto done;
+            }
+        }
+        for(c = 0; c < l2_count; c++) {
+            new[l1_count + c] = talloc_strdup(new, l2[c]);
+            if (new[l1_count + c] == NULL) {
+                DEBUG(SSSDBG_OP_FAILURE, "talloc_strdup failed.\n");
+                ret = ENOMEM;
+                goto done;
+            }
+        }
+    } else {
+        if (l1 != NULL) {
+            memcpy(new, l1, sizeof(char *) * l1_count);
+        }
+
+        if (l2 != NULL) {
+            memcpy(&new[l1_count], l2, sizeof(char *) * l2_count);
+        }
+    }
+
+    *_new_list = new;
+    ret = EOK;
+
+done:
+    if (ret != EOK) {
+        talloc_free(new);
+    }
+
+    return ret;
+}