strerror_test.c revision 220376
1/*- 2 * Copyright (c) 2001 Wes Peters <wes@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/tools/regression/lib/libc/string/test-strerror.c 220376 2011-04-05 21:56:05Z jilles $ 27 */ 28 29#include <assert.h> 30#include <errno.h> 31#include <limits.h> 32#include <stdio.h> 33#include <stdlib.h> 34#include <string.h> 35 36#include <tap.h> 37 38int 39main(void) 40{ 41 char buf[64]; 42 char *sret; 43 int iret; 44 45 plan_tests(27); 46 47 /* 48 * strerror() failure tests. 49 */ 50 errno = 0; 51 sret = strerror(INT_MAX); 52 snprintf(buf, sizeof(buf), "Unknown error: %d", INT_MAX); 53 ok1(strcmp(sret, buf) == 0); 54 ok1(errno == EINVAL); 55 56 /* 57 * strerror() success tests. 58 */ 59 errno = 0; 60 sret = strerror(0); 61 ok1(strcmp(sret, "No error: 0") == 0); 62 ok1(errno == 0); 63 64 errno = 0; 65 sret = strerror(EPERM); 66 ok1(strcmp(sret, "Operation not permitted") == 0); 67 ok1(errno == 0); 68 69 errno = 0; 70 sret = strerror(EPFNOSUPPORT); 71 ok1(strcmp(sret, "Protocol family not supported") == 0); 72 ok1(errno == 0); 73 74 errno = 0; 75 sret = strerror(ELAST); 76 ok1(errno == 0); 77 78 /* 79 * strerror_r() failure tests. 80 */ 81 memset(buf, '*', sizeof(buf)); 82 iret = strerror_r(-1, buf, sizeof(buf)); 83 ok1(strcmp(buf, "Unknown error: -1") == 0); 84 ok1(iret == EINVAL); 85 86 memset(buf, '*', sizeof(buf)); 87 /* One byte too short. */ 88 iret = strerror_r(EPERM, buf, strlen("Operation not permitted")); 89 ok1(strcmp(buf, "Operation not permitte") == 0); 90 ok1(iret == ERANGE); 91 92 memset(buf, '*', sizeof(buf)); 93 /* One byte too short. */ 94 iret = strerror_r(-1, buf, strlen("Unknown error: -1")); 95 ok1(strcmp(buf, "Unknown error: -") == 0); 96 ok1(iret == EINVAL); 97 98 memset(buf, '*', sizeof(buf)); 99 /* Two bytes too short. */ 100 iret = strerror_r(-2, buf, strlen("Unknown error: -2") - 1); 101 ok1(strcmp(buf, "Unknown error: ") == 0); 102 ok1(iret == EINVAL); 103 104 memset(buf, '*', sizeof(buf)); 105 /* Three bytes too short. */ 106 iret = strerror_r(-2, buf, strlen("Unknown error: -2") - 2); 107 ok1(strcmp(buf, "Unknown error:") == 0); 108 ok1(iret == EINVAL); 109 110 memset(buf, '*', sizeof(buf)); 111 /* One byte too short. */ 112 iret = strerror_r(12345, buf, strlen("Unknown error: 12345")); 113 ok1(strcmp(buf, "Unknown error: 1234") == 0); 114 ok1(iret == EINVAL); 115 116 /* 117 * strerror_r() success tests. 118 */ 119 memset(buf, '*', sizeof(buf)); 120 iret = strerror_r(0, buf, sizeof(buf)); 121 ok1(strcmp(buf, "No error: 0") == 0); 122 ok1(iret == 0); 123 124 memset(buf, '*', sizeof(buf)); 125 iret = strerror_r(EDEADLK, buf, sizeof(buf)); 126 ok1(strcmp(buf, "Resource deadlock avoided") == 0); 127 ok1(iret == 0); 128 129 memset(buf, '*', sizeof(buf)); 130 iret = strerror_r(EPROCLIM, buf, sizeof(buf)); 131 ok1(strcmp(buf, "Too many processes") == 0); 132 ok1(iret == 0); 133 134 return exit_status(); 135} 136