54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
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/*
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* Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
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*
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* This document is the property of Apple Computer, Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Computer, Inc.
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*/
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#ifndef __LIB_ENV_H
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#define __LIB_ENV_H
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#include <sys/types.h>
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__BEGIN_DECLS
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/* systemwide environment variables */
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struct env_var {
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char *str;
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size_t u;
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uint32_t flags;
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};
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#define ENV_PERSISTENT 0x1 /* saved with 'saveenv' or not */
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#define ENV_SHADOW 0x2 // hidden from env_get or not
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const char *env_get(const char *name);
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size_t env_get_uint(const char *name, size_t default_val);
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bool env_get_bool(const char *name, bool default_val);
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const struct env_var *env_get_etc(const char *name);
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int env_set(const char *name, const char *val, uint32_t flags);
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int env_set_uint(const char *name, size_t val, uint32_t flags);
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int env_unset(const char *name);
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/* supplied by code that wants to blacklist environment variables */
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bool env_blacklist(const char *name, bool write);
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bool env_blacklist_nvram(const char *name);
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/* used by the nvram system */
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size_t env_serialize(uint8_t *buf, size_t buf_len);
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int env_unserialize(const uint8_t *buf, size_t buf_len);
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/* get an ip address from the environment */
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int env_get_ipaddr(const char *name, uint32_t *ip);
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int env_get_ethaddr(const char *name, uint8_t ethaddr[6]);
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__END_DECLS
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#endif
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