130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/*
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* VasEBoot -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* VasEBoot 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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* VasEBoot 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 VasEBoot. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef VasEBoot_COMMAND_HEADER
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#define VasEBoot_COMMAND_HEADER 1
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#include <VasEBoot/symbol.h>
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#include <VasEBoot/err.h>
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#include <VasEBoot/list.h>
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#include <VasEBoot/misc.h>
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typedef enum VasEBoot_command_flags
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{
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/* This is an extended command. */
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VasEBoot_COMMAND_FLAG_EXTCMD = 0x10,
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/* This is an dynamic command. */
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VasEBoot_COMMAND_FLAG_DYNCMD = 0x20,
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/* This command accepts block arguments. */
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VasEBoot_COMMAND_FLAG_BLOCKS = 0x40,
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/* This command accepts unknown arguments as direct parameters. */
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VasEBoot_COMMAND_ACCEPT_DASH = 0x80,
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/* This command accepts only options preceding direct arguments. */
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VasEBoot_COMMAND_OPTIONS_AT_START = 0x100,
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/* Can be executed in an entries extractor. */
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VasEBoot_COMMAND_FLAG_EXTRACTOR = 0x200
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} VasEBoot_command_flags_t;
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struct VasEBoot_command;
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typedef VasEBoot_err_t (*VasEBoot_command_func_t) (struct VasEBoot_command *cmd,
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int argc, char **argv);
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#define VasEBoot_COMMAND_PRIO_MASK 0xff
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#define VasEBoot_COMMAND_FLAG_ACTIVE 0x100
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/* The command description. */
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struct VasEBoot_command
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{
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/* The next element. */
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struct VasEBoot_command *next;
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struct VasEBoot_command **prev;
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/* The name. */
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const char *name;
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/* The priority. */
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int prio;
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/* The callback function. */
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VasEBoot_command_func_t func;
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/* The flags. */
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VasEBoot_command_flags_t flags;
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/* The summary of the command usage. */
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const char *summary;
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/* The description of the command. */
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const char *description;
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/* Arbitrary data. */
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void *data;
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};
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typedef struct VasEBoot_command *VasEBoot_command_t;
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extern VasEBoot_command_t EXPORT_VAR(VasEBoot_command_list);
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VasEBoot_command_t
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EXPORT_FUNC(VasEBoot_register_command_prio) (const char *name,
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VasEBoot_command_func_t func,
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const char *summary,
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const char *description,
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int prio);
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void EXPORT_FUNC(VasEBoot_unregister_command) (VasEBoot_command_t cmd);
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static inline VasEBoot_command_t
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VasEBoot_register_command (const char *name,
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VasEBoot_command_func_t func,
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const char *summary,
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const char *description)
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{
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return VasEBoot_register_command_prio (name, func, summary, description, 0);
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}
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static inline VasEBoot_command_t
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VasEBoot_register_command_p1 (const char *name,
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VasEBoot_command_func_t func,
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const char *summary,
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const char *description)
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{
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return VasEBoot_register_command_prio (name, func, summary, description, 1);
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}
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static inline VasEBoot_command_t
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VasEBoot_command_find (const char *name)
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{
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return VasEBoot_named_list_find (VasEBoot_AS_NAMED_LIST (VasEBoot_command_list), name);
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}
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static inline VasEBoot_err_t
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VasEBoot_command_execute (const char *name, int argc, char **argv)
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{
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VasEBoot_command_t cmd;
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cmd = VasEBoot_command_find (name);
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return (cmd) ? cmd->func (cmd, argc, argv) : VasEBoot_ERR_FILE_NOT_FOUND;
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}
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#define FOR_COMMANDS(var) FOR_LIST_ELEMENTS((var), VasEBoot_command_list)
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#define FOR_COMMANDS_SAFE(var, next) FOR_LIST_ELEMENTS_SAFE((var), (next), VasEBoot_command_list)
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void VasEBoot_register_core_commands (void);
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#endif /* ! VasEBoot_COMMAND_HEADER */
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