mirror of https://github.com/F-Stack/f-stack.git
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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*/
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/* Use XSI-compliant portable version of strerror_r() */
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#undef _GNU_SOURCE
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <rte_per_lcore.h>
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#include <rte_errno.h>
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#include <rte_string_fns.h>
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#ifdef RTE_EXEC_ENV_WINDOWS
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#define strerror_r(errnum, buf, buflen) strerror_s(buf, buflen, errnum)
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#endif
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RTE_DEFINE_PER_LCORE(int, _rte_errno);
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const char *
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rte_strerror(int errnum)
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{
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/* BSD puts a colon in the "unknown error" messages, Linux doesn't */
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#ifdef RTE_EXEC_ENV_FREEBSD
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static const char *sep = ":";
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#else
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static const char *sep = "";
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#endif
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#define RETVAL_SZ 256
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static RTE_DEFINE_PER_LCORE(char[RETVAL_SZ], retval);
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char *ret = RTE_PER_LCORE(retval);
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/* since some implementations of strerror_r throw an error
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* themselves if errnum is too big, we handle that case here */
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if (errnum >= RTE_MAX_ERRNO)
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snprintf(ret, RETVAL_SZ, "Unknown error%s %d", sep, errnum);
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else
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switch (errnum){
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case E_RTE_SECONDARY:
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return "Invalid call in secondary process";
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case E_RTE_NO_CONFIG:
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return "Missing rte_config structure";
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default:
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if (strerror_r(errnum, ret, RETVAL_SZ) != 0)
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snprintf(ret, RETVAL_SZ, "Unknown error%s %d",
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sep, errnum);
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}
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return ret;
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}
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