do not clobber errno

[protos/libecoli.git] / lib / ecoli_node_file.c

diff --git a/lib/ecoli_node_file.c b/lib/ecoli_node_file.c
index 09f96fc..001dcb6 100644 (file)
--- a/lib/ecoli_node_file.c
+++ b/lib/ecoli_node_file.c
@@ -161,13 +161,17 @@ ec_node_file_complete(const struct ec_node *gen_node,
 
        bname_len = strlen(bname);
        while (1) {
+               int save_errno = errno;
+
                errno = 0;
                de = node->readdir(dir);
                if (de == NULL) {
-                       if (errno == 0)
+                       if (errno == 0) {
+                               errno = save_errno;
                                goto out;
-                       else
+                       } else {
                                goto fail;
+                       }
                }
 
                if (!ec_str_startswith(de->d_name, bname))