2973057493
Of course, strerror_r() may still fail with ERANGE. Although the POSIX specification said this could fail with EINVAL and doing this likely indicates invalid use of errno, most other implementations permitted it, various POSIX testsuites require it to work (matching the older sys_errlist array) and apparently some applications depend on it. PR: standards/151316 MFC after: 1 week
136 lines
3.7 KiB
C
136 lines
3.7 KiB
C
/*-
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* Copyright (c) 2001 Wes Peters <wes@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <assert.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <tap.h>
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int
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main(void)
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{
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char buf[64];
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char *sret;
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int iret;
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plan_tests(27);
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/*
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* strerror() failure tests.
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*/
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errno = 0;
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sret = strerror(INT_MAX);
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snprintf(buf, sizeof(buf), "Unknown error: %d", INT_MAX);
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ok1(strcmp(sret, buf) == 0);
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ok1(errno == EINVAL);
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/*
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* strerror() success tests.
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*/
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errno = 0;
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sret = strerror(0);
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ok1(strcmp(sret, "No error: 0") == 0);
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ok1(errno == 0);
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errno = 0;
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sret = strerror(EPERM);
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ok1(strcmp(sret, "Operation not permitted") == 0);
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ok1(errno == 0);
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errno = 0;
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sret = strerror(EPFNOSUPPORT);
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ok1(strcmp(sret, "Protocol family not supported") == 0);
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ok1(errno == 0);
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errno = 0;
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sret = strerror(ELAST);
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ok1(errno == 0);
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/*
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* strerror_r() failure tests.
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*/
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memset(buf, '*', sizeof(buf));
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iret = strerror_r(-1, buf, sizeof(buf));
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ok1(strcmp(buf, "Unknown error: -1") == 0);
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ok1(iret == EINVAL);
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memset(buf, '*', sizeof(buf));
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/* One byte too short. */
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iret = strerror_r(EPERM, buf, strlen("Operation not permitted"));
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ok1(strcmp(buf, "Operation not permitte") == 0);
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ok1(iret == ERANGE);
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memset(buf, '*', sizeof(buf));
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/* One byte too short. */
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iret = strerror_r(-1, buf, strlen("Unknown error: -1"));
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ok1(strcmp(buf, "Unknown error: -") == 0);
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ok1(iret == EINVAL);
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memset(buf, '*', sizeof(buf));
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/* Two bytes too short. */
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iret = strerror_r(-2, buf, strlen("Unknown error: -2") - 1);
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ok1(strcmp(buf, "Unknown error: ") == 0);
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ok1(iret == EINVAL);
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memset(buf, '*', sizeof(buf));
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/* Three bytes too short. */
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iret = strerror_r(-2, buf, strlen("Unknown error: -2") - 2);
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ok1(strcmp(buf, "Unknown error:") == 0);
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ok1(iret == EINVAL);
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memset(buf, '*', sizeof(buf));
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/* One byte too short. */
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iret = strerror_r(12345, buf, strlen("Unknown error: 12345"));
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ok1(strcmp(buf, "Unknown error: 1234") == 0);
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ok1(iret == EINVAL);
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/*
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* strerror_r() success tests.
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*/
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memset(buf, '*', sizeof(buf));
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iret = strerror_r(0, buf, sizeof(buf));
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ok1(strcmp(buf, "No error: 0") == 0);
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ok1(iret == 0);
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memset(buf, '*', sizeof(buf));
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iret = strerror_r(EDEADLK, buf, sizeof(buf));
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ok1(strcmp(buf, "Resource deadlock avoided") == 0);
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ok1(iret == 0);
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memset(buf, '*', sizeof(buf));
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iret = strerror_r(EPROCLIM, buf, sizeof(buf));
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ok1(strcmp(buf, "Too many processes") == 0);
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ok1(iret == 0);
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return exit_status();
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}
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