1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <stdint.h> 35 #include <stdio.h> 36 #include <stdarg.h> 37 #include <errno.h> 38 #include <string.h> 39 #include <rte_per_lcore.h> 40 #include <rte_errno.h> 41 #include <rte_string_fns.h> 42 43 #include "test.h" 44 45 static int 46 test_errno(void) 47 { 48 const char *rte_retval; 49 const char *libc_retval; 50 #ifdef RTE_EXEC_ENV_BSDAPP 51 /* BSD has a colon in the string, unlike linux */ 52 const char unknown_code_result[] = "Unknown error: %d"; 53 #else 54 const char unknown_code_result[] = "Unknown error %d"; 55 #endif 56 char expected_libc_retval[sizeof(unknown_code_result)+3]; 57 58 /* use a small selection of standard errors for testing */ 59 int std_errs[] = {EAGAIN, EBADF, EACCES, EINTR, EINVAL}; 60 /* test ALL registered RTE error codes for overlap */ 61 int rte_errs[] = {E_RTE_SECONDARY, E_RTE_NO_CONFIG}; 62 unsigned i; 63 64 rte_errno = 0; 65 if (rte_errno != 0) 66 return -1; 67 /* check for standard errors we return the same as libc */ 68 for (i = 0; i < sizeof(std_errs)/sizeof(std_errs[0]); i++){ 69 rte_retval = rte_strerror(std_errs[i]); 70 libc_retval = strerror(std_errs[i]); 71 printf("rte_strerror: '%s', strerror: '%s'\n", 72 rte_retval, libc_retval); 73 if (strcmp(rte_retval, libc_retval) != 0) 74 return -1; 75 } 76 /* for rte-specific errors ensure we return a different string 77 * and that the string for libc is for an unknown error 78 */ 79 for (i = 0; i < sizeof(rte_errs)/sizeof(rte_errs[0]); i++){ 80 rte_retval = rte_strerror(rte_errs[i]); 81 libc_retval = strerror(rte_errs[i]); 82 printf("rte_strerror: '%s', strerror: '%s'\n", 83 rte_retval, libc_retval); 84 if (strcmp(rte_retval, libc_retval) == 0) 85 return -1; 86 /* generate appropriate error string for unknown error number 87 * and then check that this is what we got back. If not, we have 88 * a duplicate error number that conflicts with errno.h */ 89 snprintf(expected_libc_retval, sizeof(expected_libc_retval), 90 unknown_code_result, rte_errs[i]); 91 if ((strcmp(expected_libc_retval, libc_retval) != 0) && 92 (strcmp("", libc_retval) != 0)){ 93 printf("Error, duplicate error code %d\n", rte_errs[i]); 94 return -1; 95 } 96 } 97 98 /* ensure that beyond RTE_MAX_ERRNO, we always get an unknown code */ 99 rte_retval = rte_strerror(RTE_MAX_ERRNO + 1); 100 libc_retval = strerror(RTE_MAX_ERRNO + 1); 101 snprintf(expected_libc_retval, sizeof(expected_libc_retval), 102 unknown_code_result, RTE_MAX_ERRNO + 1); 103 printf("rte_strerror: '%s', strerror: '%s'\n", 104 rte_retval, libc_retval); 105 if ((strcmp(rte_retval, libc_retval) != 0) || 106 (strcmp(expected_libc_retval, libc_retval) != 0)){ 107 if (strcmp("", libc_retval) != 0){ 108 printf("Failed test for RTE_MAX_ERRNO + 1 value\n"); 109 return -1; 110 } 111 } 112 113 return 0; 114 } 115 116 REGISTER_TEST_COMMAND(errno_autotest, test_errno); 117