42a5b3fcc7
* kern/env.c (grub_env_context_open): Added an argument to specify
whether a new context inherits exported variables from current
one. This is useful when making a sandbox to interpret a config
file.
All callers updated.
* include/grub/env.h (grub_env_context_open): Updated the prototype.
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2003,2005,2006,2007,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_ENV_HEADER
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#define GRUB_ENV_HEADER 1
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#include <grub/symbol.h>
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#include <grub/err.h>
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#include <grub/types.h>
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struct grub_env_var;
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typedef char *(*grub_env_read_hook_t) (struct grub_env_var *var,
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const char *val);
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typedef char *(*grub_env_write_hook_t) (struct grub_env_var *var,
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const char *val);
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enum grub_env_var_type
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{
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/* The default variable type which is local in current context. */
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GRUB_ENV_VAR_LOCAL,
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/* The exported type, which is passed to new contexts. */
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GRUB_ENV_VAR_GLOBAL,
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/* The data slot type, which is used to store arbitrary data. */
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GRUB_ENV_VAR_DATA
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};
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struct grub_env_var
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{
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char *name;
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char *value;
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grub_env_read_hook_t read_hook;
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grub_env_write_hook_t write_hook;
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struct grub_env_var *next;
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struct grub_env_var **prevp;
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enum grub_env_var_type type;
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};
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grub_err_t EXPORT_FUNC(grub_env_set) (const char *name, const char *val);
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char *EXPORT_FUNC(grub_env_get) (const char *name);
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void EXPORT_FUNC(grub_env_unset) (const char *name);
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void EXPORT_FUNC(grub_env_iterate) (int (*func) (struct grub_env_var *var));
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grub_err_t EXPORT_FUNC(grub_register_variable_hook) (const char *name,
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grub_env_read_hook_t read_hook,
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grub_env_write_hook_t write_hook);
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grub_err_t EXPORT_FUNC(grub_env_context_open) (int export);
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grub_err_t EXPORT_FUNC(grub_env_context_close) (void);
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grub_err_t EXPORT_FUNC(grub_env_export) (const char *name);
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grub_err_t EXPORT_FUNC(grub_env_set_data_slot) (const char *name,
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const void *ptr);
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void *EXPORT_FUNC(grub_env_get_data_slot) (const char *name);
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void EXPORT_FUNC(grub_env_unset_data_slot) (const char *name);
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#endif /* ! GRUB_ENV_HEADER */
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