110 lines
3.6 KiB
C
110 lines
3.6 KiB
C
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/*-
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* Copyright (c) 2007 Sean C. Farley <scf@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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* without modification, immediately at the beginning of the file.
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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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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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 <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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extern char **environ;
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const char *envName = "FOOBAR";
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const char *envValSmall = "Hi";
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const char *envValLarge = "Hi, again";
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const char *envValAny = "Any value";
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int
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main(int argc, char **argv)
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{
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const char *env1 = NULL;
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const char *env2 = NULL;
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const char *env3 = NULL;
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const char *env4 = NULL;
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const char *env5 = NULL;
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int testNdx;
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/* Clean slate. */
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environ = NULL;
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testNdx = 0;
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/* Initial value of variable. */
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if (getenv(envName) != NULL)
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printf("not ");
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printf("ok %d - getenv(\"%s\")\n", ++testNdx, envName);
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/* Set value of variable to smaller value and get value. */
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if ((setenv(envName, envValSmall, 1) != 0) ||
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((env1 = getenv(envName)) == NULL) ||
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(strcmp(env1, envValSmall) != 0))
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printf("not ");
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printf("ok %d - setenv(\"%s\", \"%s\", 1)\n", ++testNdx, envName,
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envValSmall);
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/* Unset variable. */
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if ((unsetenv(envName) == -1) || ((env2 = getenv(envName)) != NULL))
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printf("not ");
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printf("ok %d - unsetenv(\"%s\")\n", ++testNdx, envName);
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/* Set variable to bigger value and get value. */
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if ((setenv(envName, envValLarge, 1) != 0) ||
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((env3 = getenv(envName)) == NULL) ||
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(strcmp(env3, envValLarge) != 0))
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printf("not ");
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printf("ok %d - setenv(\"%s\", \"%s\", 1)\n", ++testNdx, envName,
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envValLarge);
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/* Set variable to smaller value and get value. */
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if ((setenv(envName, envValSmall, 1) != 0) ||
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((env4 = getenv(envName)) == NULL) ||
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(strcmp(env4, envValSmall) != 0))
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printf("not ");
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printf("ok %d - setenv(\"%s\", \"%s\", 1)\n", ++testNdx, envName,
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envValSmall);
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/* Set variable to any value without overwrite and get value. */
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if ((setenv(envName, envValAny, 0) != 0) ||
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((env5 = getenv(envName)) == NULL) ||
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(strcmp(env5, envValAny) == 0))
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printf("not ");
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printf("ok %d - setenv(\"%s\", \"%s\", 0)\n", ++testNdx, envName,
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envValAny);
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/*
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* Verify FreeBSD-ism about allowing a program to keep old pointers without
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* risk of segfaulting.
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*/
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if ((strcmp(env1, envValSmall) != 0) ||
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(strcmp(env3, envValSmall) != 0) ||
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(strcmp(env4, envValSmall) != 0))
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printf("not ");
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printf("ok %d - old variables point to valid memory\n", ++testNdx);
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exit(EXIT_SUCCESS);
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}
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