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-rw-r--r--security/nss/lib/ssl/sslerr.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/security/nss/lib/ssl/sslerr.c b/security/nss/lib/ssl/sslerr.c
new file mode 100644
index 000000000..edb941257
--- /dev/null
+++ b/security/nss/lib/ssl/sslerr.c
@@ -0,0 +1,41 @@
+/*
+ * Function to set error code only when meaningful error has not already
+ * been set.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "prerror.h"
+#include "secerr.h"
+#include "sslerr.h"
+#include "seccomon.h"
+
+/* look at the current value of PR_GetError, and evaluate it to see
+ * if it is meaningful or meaningless (out of context).
+ * If it is meaningless, replace it with the hiLevelError.
+ * Returns the chosen error value.
+ */
+int
+ssl_MapLowLevelError(int hiLevelError)
+{
+ int oldErr = PORT_GetError();
+
+ switch (oldErr) {
+
+ case 0:
+ case PR_IO_ERROR:
+ case SEC_ERROR_IO:
+ case SEC_ERROR_BAD_DATA:
+ case SEC_ERROR_LIBRARY_FAILURE:
+ case SEC_ERROR_EXTENSION_NOT_FOUND:
+ case SSL_ERROR_BAD_CLIENT:
+ case SSL_ERROR_BAD_SERVER:
+ case SSL_ERROR_SESSION_NOT_FOUND:
+ PORT_SetError(hiLevelError);
+ return hiLevelError;
+
+ default: /* leave the majority of error codes alone. */
+ return oldErr;
+ }
+}