1 files changed, 55 insertions, 0 deletions
diff --git a/src/xsi_strerror.h b/src/xsi_strerror.h
new file mode 100644
index 0000000..32cadc3
--- /dev/null
+++ b/src/xsi_strerror.h
@@ -0,0 +1,55 @@
+/*
+ * nghttp2 - HTTP/2 C Library
+ *
+ * Copyright (c) 2016 Tatsuhiro Tsujikawa
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef XSI_STRERROR_H
+#define XSI_STRERROR_H
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/* Looks like error message is quite small, but we really don't know
+   how much longer they become. */
+#define STRERROR_BUFSIZE 256
+
+/*
+ * Returns description of error denoted by |errnum|.  The description
+ * is written in |buf| of length |buflen| including terminal NULL.  If
+ * there is an error, including the case that buffer space is not
+ * sufficient to include error message, and |buflen| > 0, empty string
+ * is written to |buf|.  This function returns |buf|.
+ */
+char *xsi_strerror(int errnum, char *buf, size_t buflen);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* XSI_STRERROR_H */