e14f1744d6
On Windows, strerror returns just "Unknown error" for errnum greater than MAX_ERRNO, while linux and freebsd returns "Unknown error <num>", which is the current expectation for errno_autotest. Differentiate the error string on Windows to remove a "duplicate error code" failure. Signed-off-by: Jie Zhou <jizh@linux.microsoft.com> Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <string.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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#include "test.h"
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static int
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test_errno(void)
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{
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const char *rte_retval;
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const char *libc_retval;
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#ifndef RTE_EXEC_ENV_WINDOWS
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#ifdef RTE_EXEC_ENV_FREEBSD
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/* BSD has a colon in the string, unlike linux */
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const char unknown_code_result[] = "Unknown error: %d";
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#else
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const char unknown_code_result[] = "Unknown error %d";
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#endif
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char expected_libc_retval[sizeof(unknown_code_result) + 3];
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#else
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/* Windows doesn't return error number for error greater than MAX_errno*/
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static const char expected_libc_retval[] = "Unknown error";
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#endif
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/* use a small selection of standard errors for testing */
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int std_errs[] = {EAGAIN, EBADF, EACCES, EINTR, EINVAL};
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/* test ALL registered RTE error codes for overlap */
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int rte_errs[] = {E_RTE_SECONDARY, E_RTE_NO_CONFIG};
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unsigned i;
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rte_errno = 0;
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if (rte_errno != 0)
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return -1;
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/* check for standard errors we return the same as libc */
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for (i = 0; i < RTE_DIM(std_errs); i++) {
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rte_retval = rte_strerror(std_errs[i]);
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libc_retval = strerror(std_errs[i]);
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printf("rte_strerror: '%s', strerror: '%s'\n",
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rte_retval, libc_retval);
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if (strcmp(rte_retval, libc_retval) != 0)
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return -1;
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}
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/* for rte-specific errors ensure we return a different string
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* and that the string for libc is for an unknown error
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*/
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for (i = 0; i < RTE_DIM(rte_errs); i++) {
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rte_retval = rte_strerror(rte_errs[i]);
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libc_retval = strerror(rte_errs[i]);
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printf("rte_strerror: '%s', strerror: '%s'\n",
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rte_retval, libc_retval);
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if (strcmp(rte_retval, libc_retval) == 0)
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return -1;
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#ifndef RTE_EXEC_ENV_WINDOWS
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/* generate appropriate error string for unknown error number
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* and then check that this is what we got back. If not, we have
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* a duplicate error number that conflicts with errno.h */
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snprintf(expected_libc_retval, sizeof(expected_libc_retval),
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unknown_code_result, rte_errs[i]);
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#endif
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if ((strcmp(expected_libc_retval, libc_retval) != 0) &&
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(strcmp("", libc_retval) != 0)){
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printf("Error, duplicate error code %d\n", rte_errs[i]);
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return -1;
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}
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}
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/* ensure that beyond RTE_MAX_ERRNO, we always get an unknown code */
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rte_retval = rte_strerror(RTE_MAX_ERRNO + 1);
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libc_retval = strerror(RTE_MAX_ERRNO + 1);
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#ifndef RTE_EXEC_ENV_WINDOWS
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snprintf(expected_libc_retval, sizeof(expected_libc_retval),
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unknown_code_result, RTE_MAX_ERRNO + 1);
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#endif
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printf("rte_strerror: '%s', strerror: '%s'\n",
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rte_retval, libc_retval);
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if ((strcmp(rte_retval, libc_retval) != 0) ||
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(strcmp(expected_libc_retval, libc_retval) != 0)){
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if (strcmp("", libc_retval) != 0){
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printf("Failed test for RTE_MAX_ERRNO + 1 value\n");
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return -1;
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}
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}
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return 0;
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}
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REGISTER_TEST_COMMAND(errno_autotest, test_errno);
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