115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
/* Copyright (c) 2007 The NetBSD Foundation, Inc.
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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 NETBSD FOUNDATION, INC. AND
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* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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#include "atf-c/detail/env.h"
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#if defined(HAVE_CONFIG_H)
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#include "config.h"
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#endif
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#include <errno.h>
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#include <stdlib.h>
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#include "atf-c/detail/sanity.h"
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#include "atf-c/detail/text.h"
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#include "atf-c/error.h"
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const char *
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atf_env_get(const char *name)
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{
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const char* val = getenv(name);
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PRE(val != NULL);
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return val;
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}
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const char *
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atf_env_get_with_default(const char *name, const char *default_value)
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{
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const char* val = getenv(name);
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if (val == NULL)
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return default_value;
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else
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return val;
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}
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bool
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atf_env_has(const char *name)
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{
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return getenv(name) != NULL;
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}
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atf_error_t
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atf_env_set(const char *name, const char *val)
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{
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atf_error_t err;
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#if defined(HAVE_SETENV)
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if (setenv(name, val, 1) == -1)
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err = atf_libc_error(errno, "Cannot set environment variable "
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"'%s' to '%s'", name, val);
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else
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err = atf_no_error();
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#elif defined(HAVE_PUTENV)
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char *buf;
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err = atf_text_format(&buf, "%s=%s", name, val);
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if (!atf_is_error(err)) {
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if (putenv(buf) == -1)
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err = atf_libc_error(errno, "Cannot set environment variable "
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"'%s' to '%s'", name, val);
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free(buf);
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}
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#else
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# error "Don't know how to set an environment variable."
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#endif
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return err;
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}
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atf_error_t
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atf_env_unset(const char *name)
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{
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atf_error_t err;
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#if defined(HAVE_UNSETENV)
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unsetenv(name);
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err = atf_no_error();
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#elif defined(HAVE_PUTENV)
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char *buf;
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err = atf_text_format(&buf, "%s=", name);
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if (!atf_is_error(err)) {
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if (putenv(buf) == -1)
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err = atf_libc_error(errno, "Cannot unset environment variable"
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" '%s'", name);
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free(buf);
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}
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#else
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# error "Don't know how to unset an environment variable."
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#endif
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return err;
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}
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