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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2016 Joyent, Inc.
*/
/*
* Regression test for OS-4089 where doing a putenv() call without an '=' sign
* may lead to a segmentation fault when doing a getenv() depending on the
* circumstances of the environment's layout. Verify putenv() mimics
* unsetenv().
*/
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/debug.h>
int
main(void)
{
if (putenv("FOO=bar") != 0) {
fprintf(stderr, "failed to put FOO into the environment: %s\n",
strerror(errno));
return (1);
}
if (getenv("FOO") == NULL) {
fprintf(stderr, "failed to retrieve FOO from the "
"environment!\n");
return (1);
}
VERIFY0(unsetenv("FOO"));
if (getenv("FOO") != NULL) {
fprintf(stderr, "Somehow retrieved FOO from the "
"environment after unsetenv()!\n");
return (1);
}
if (putenv("FOO=bar") != 0) {
fprintf(stderr, "failed to put FOO into the environment: %s\n",
strerror(errno));
return (1);
}
if (getenv("FOO") == NULL) {
fprintf(stderr, "failed to retrieve FOO from the "
"environment!\n");
return (1);
}
VERIFY0(putenv("FOO"));
if (getenv("FOO") != NULL) {
fprintf(stderr, "Somehow retrieved FOO from the "
"environment after putenv()!\n");
return (1);
}
return (0);
}
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