nghttp2/src/xsi_strerror.h

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/*
* 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 */