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/* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include "atf-c/detail/env.h"
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#include <errno.h>
#include <stdlib.h>
#include "atf-c/detail/sanity.h"
#include "atf-c/detail/text.h"
#include "atf-c/error.h"
const char *
atf_env_get(const char *name)
{
const char* val = getenv(name);
PRE(val != NULL);
return val;
}
const char *
atf_env_get_with_default(const char *name, const char *default_value)
{
const char* val = getenv(name);
if (val == NULL)
return default_value;
else
return val;
}
bool
atf_env_has(const char *name)
{
return getenv(name) != NULL;
}
atf_error_t
atf_env_set(const char *name, const char *val)
{
atf_error_t err;
#if defined(HAVE_SETENV)
if (setenv(name, val, 1) == -1)
err = atf_libc_error(errno, "Cannot set environment variable "
"'%s' to '%s'", name, val);
else
err = atf_no_error();
#elif defined(HAVE_PUTENV)
char *buf;
err = atf_text_format(&buf, "%s=%s", name, val);
if (!atf_is_error(err)) {
if (putenv(buf) == -1)
err = atf_libc_error(errno, "Cannot set environment variable "
"'%s' to '%s'", name, val);
free(buf);
}
#else
# error "Don't know how to set an environment variable."
#endif
return err;
}
atf_error_t
atf_env_unset(const char *name)
{
atf_error_t err;
#if defined(HAVE_UNSETENV)
unsetenv(name);
err = atf_no_error();
#elif defined(HAVE_PUTENV)
char *buf;
err = atf_text_format(&buf, "%s=", name);
if (!atf_is_error(err)) {
if (putenv(buf) == -1)
err = atf_libc_error(errno, "Cannot unset environment variable"
" '%s'", name);
free(buf);
}
#else
# error "Don't know how to unset an environment variable."
#endif
return err;
}
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