Add error code support to libtls

This adds tls_config_error_code() and tls_error_code(), which will become
public API at a later date.

Additional error codes will be added in follow-up commits.

ok jsing@ beck@

1 files changed, 6 insertions, 4 deletions

diff --git a/src/lib/libtls/tls_bio_cb.c b/src/lib/libtls/tls_bio_cb.c
index 8a1edfd5e4..56b9e12a71 100644
--- a/src/lib/libtls/tls_bio_cb.c
+++ b/src/lib/libtls/tls_bio_cb.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tls_bio_cb.c,v 1.21 2023/05/14 07:26:25 op Exp $ */
+/* $OpenBSD: tls_bio_cb.c,v 1.22 2024/03/26 06:24:52 joshua Exp $ */
 /*
  * Copyright (c) 2016 Tobias Pape <tobias@netshed.de>
  *
@@ -143,7 +143,7 @@ tls_set_cbs(struct tls *ctx, tls_read_cb read_cb, tls_write_cb write_cb,
         int rv = -1;
 
         if (read_cb == NULL || write_cb == NULL) {
-                tls_set_errorx(ctx, "no callbacks provided");
+                tls_set_errorx(ctx, TLS_ERROR_UNKNOWN, "no callbacks provided");
                 goto err;
         }
 
@@ -152,11 +152,13 @@ tls_set_cbs(struct tls *ctx, tls_read_cb read_cb, tls_write_cb write_cb,
         ctx->cb_arg = cb_arg;
 
         if ((bio_cb = bio_s_cb()) == NULL) {
-                tls_set_errorx(ctx, "failed to create callback method");
+                tls_set_errorx(ctx, TLS_ERROR_UNKNOWN,
+                    "failed to create callback method");
                 goto err;
         }
         if ((bio = BIO_new(bio_cb)) == NULL) {
-                tls_set_errorx(ctx, "failed to create callback i/o");
+                tls_set_errorx(ctx, TLS_ERROR_UNKNOWN,
+                    "failed to create callback i/o");
                 goto err;
         }
         BIO_set_data(bio, ctx);